Information transmission method, apparatus, and system

CROSS-REFERENCE TO RELATED APPLICATIONS

0001This application is a continuation of International Patent Application No. PCT/CN2014/076522, filed on Apr. 29, 2014, which claims priority to Chinese Patent Application No. PCT/CN2013/083502, filed on Sep. 13, 2013, both of which are hereby incorporated by reference in their entireties.

TECHNICAL FIELD

0002The present disclosure relates to the communications field, and in particular, to an information transmission method, apparatus, and system.

BACKGROUND

0003In Long Term Evolution (LTE) based cost-effective Machine Type Communication (MTC), coverage enhancement needs to be performed on coverage of an LTE network, so as to ensure that user equipment (UE) can reliably communicate with a base station when the UE is in a basement or channel quality is poor. In an existing LTE or LTE-A (LTE Advanced) system, time-domain resources are divided as radio frames, and the radio frames are numbered 0 to 1023. One radio frame includes 10 subframes, a time length of one subframe is 1 millisecond (1 ms), and subframes in each radio frame are numbered 0 to 9. In the existing LTE or LTE-A system, a physical broadcast channel (PBCH) for carrying one time of transmission of an master information block (MIB), a physical downlink control channel (PDCCH) for scheduling one time of transmission of an system information block type 1 (SIB 1), a physical downlink shared channel (PDSCH) for carrying one time of transmission of the SIB 1, a PDCCH for scheduling one time of transmission of system information (SI), and a PDSCH for carrying one time of transmission of the SI are all transmitted in one subframe.

0004In the case of coverage enhancement, the base station may transmit MIB information multiple times to improve transmission reliability of an MIB, and a PBCH for carrying multiple times of transmission of the MIB may be referred to as an enhanced PBCH. Similarly, the base station may transmit control information multiple times to improve transmission reliability of the control information, and a PDCCH for carrying multiple times of transmission of the control information may be referred to as an enhanced PDCCH; the base station may transmit data multiple times to improve transmission reliability of the data, and a PDSCH for carrying multiple times of transmission of the data is referred to as an enhanced PDSCH. The data herein includes, but is not limited to, an SIB 1, SI, another SIB, unicast data, a paging message, a random access response, or other common data.

0005In the existing LTE or LTE-A system, a time division duplex (TDD) configuration is included in an SIB 1, where which subframes are special subframes and configurations of the special subframes are determined in the TDD configuration; and an multicast-broadcast single-frequency network (MBSFN) subframe configuration is included in an SIB 2, and system information (SI) cannot be transmitted in a special subframe or an MBSFN subframe. However, in the case of coverage enhancement, UE that requires coverage enhancement cannot learn the TDD configuration and the MBSFN subframe configuration before receiving the SIB 1 and the SIB 2. Therefore, when enhanced transmission is performed on first information, a subframe used in the enhanced transmission cannot be determined, thereby lowering transmission reliability of the first information. The first information may be a master information block, an SIB including a TDD configuration, or an SIB including an MBSFN subframe configuration. The enhanced transmission may be repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, power increased transmission, or retransmission.

SUMMARY

0006Embodiments of the present disclosure provide an information transmission method, apparatus, and system, which can determine a subframe used in enhanced transmission of first information, improving transmission reliability of the first information.

0007To achieve the foregoing objective, the following technical solutions are used in the embodiments of the present disclosure:

0008According to a first aspect, an embodiment of the present disclosure provides an information transmission method, where the method includes:

0009determining a subframe for enhanced transmission of first information; and

0010repeatedly transmitting the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skipping channel state information-reference signal CSI-RS transmission ontransmission of a resource element occupied by the enhanced transmission of the first information, where

0011the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0012In a first possible implementation manner, according to the first aspect,

0013for a frequency division duplex (FDD) system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0014for a time division duplex TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0015In a second possible implementation manner, with reference to the first aspect or the first possible implementation manner,

0016for the FDD system,

0017the subframe for the enhanced transmission of the first information includes the subframe 9; or

0018the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0019for the TDD system,

0020the subframe for the enhanced transmission of the first information includes the subframe 0; or

0021the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0022In a third possible implementation manner, with reference to the first aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0023for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0024for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0025In a fourth possible implementation manner, with reference to the first aspect or the first possible implementation manner to the third possible implementation manner,

0026for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0027for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0028In a fifth possible implementation manner, with reference to the first aspect or the first possible implementation manner or the fourth possible implementation manner, the skipping channel state information-reference signal CSI-RS transmission ontransmission of a resource element occupied by the enhanced transmission of the first information includes:

0029determining a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0030if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skipping transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0031In a sixth possible implementation manner, with reference to the first aspect or the first possible implementation manner or the fifth possible implementation manner, the skipping channel state information-reference signal CSI-RS transmission ontransmission of a resource element occupied by the enhanced transmission of the first information includes:

0032determining a resource element occupied by the CSI-RS transmission; and

0033skipping transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0034In a seventh possible implementation manner, with reference to the first aspect or the first possible implementation manner or the sixth possible implementation manner, the skipping channel state information-reference signal CSI-RS transmission ontransmission of a resource element occupied by the enhanced transmission of the first information includes:

0035determining a subframe for the CSI-RS transmission; and

0036skipping transmitting the first information in the subframe for the CSI-RS transmission.

0037In an eighth possible implementation manner, with reference to the first aspect or the first possible implementation manner to the seventh possible implementation manner, the determining a resource element occupied by the CSI-RS transmission includes:

0038determining an available CSI-RS configuration according to a preset rule, or setting an available CSI-RS configuration and notifying user equipment of the available CSI-RS configuration by using signaling, where the available CSI-RS configuration includes one or more CSI-RS configurations; and

0039determining, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0040In a ninth possible implementation manner, with reference to the first aspect or the first possible implementation manner to the eighth possible implementation manner, the determining a subframe for the CSI-RS transmission includes:

0041determining an available CSI-RS subframe configuration according to a preset rule, or setting an available CSI-RS subframe configuration and notifying user equipment of the available CSI-RS subframe configuration by using signaling, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations; and

0042determining the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0043In a tenth possible implementation manner, with reference to the first aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0044an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0045According to a second aspect, an embodiment of the present disclosure further provides an information transmission method, where the method includes:

0046determining a subframe for enhanced transmission of first information; and

0047receiving, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skipping CSI-RS transmission ontransmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where

0048the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0049In a first possible implementation manner, according to the second aspect,

0050for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0051for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0052In a second possible implementation manner, with reference to the second aspect or the first possible implementation manner,

0053for the FDD system,

0054the subframe for the enhanced transmission of the first information includes the subframe 9; or

0055the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0056for the TDD system,

0057the subframe for the enhanced transmission of the first information includes the subframe 0; or

0058the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0059In a third possible implementation manner, with reference to the second aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0060for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0061for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0062In a fourth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the third possible implementation manner,

0063for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0064for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0065In a fifth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the fourth possible implementation manner, the skipping CSI-RS transmission ontransmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times includes:

0066determining a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0067if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skipping receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0068In a sixth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the fifth possible implementation manner, the skipping CSI-RS transmission ontransmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times includes:

0069determining a resource element occupied by the CSI-RS transmission; and

0070skipping receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0071In a seventh possible implementation manner, with reference to the second aspect or the first possible implementation manner to the sixth possible implementation manner, the skipping CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times includes:

0072determining a subframe for the CSI-RS transmission; and

0073skipping receiving the first information in the subframe for the CSI-RS transmission.

0074In an eighth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the seventh possible implementation manner, the determining a resource element occupied by the CSI-RS transmission includes:

0075determining an available CSI-RS configuration according to a preset rule, or receiving signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations; and

0076determining, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0077In a ninth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the eighth possible implementation manner, the determining a subframe for the CSI-RS transmission includes:

0078determining an available CSI-RS subframe configuration according to a preset rule, or receiving signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations; and

0079determining the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0080In a tenth possible implementation manner, with reference to the second aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0081an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0082According to a third aspect, an embodiment of the present disclosure provides an information transmission apparatus, including:

0083a determining module, configured to determine a subframe for enhanced transmission of first information; and

0084a transmission module, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where

0085the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0086In a first possible implementation manner, according to the third aspect,

0087for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0088for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0089In a second possible implementation manner, with reference to the third aspect or the first possible implementation manner,

0090for the FDD system,

0091the subframe for the enhanced transmission of the first information includes the subframe 9; or

0092the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0093for the TDD system,

0094the subframe for the enhanced transmission of the first information includes the subframe 0; or

0095the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0096In a third possible implementation manner, with reference to the third aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0097for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0098for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0099In a fourth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the third possible implementation manner,

0100for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0101for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0102In a fifth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the fourth possible implementation manner,

0103the determining module is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0104the transmission module is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0105In a sixth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the fifth possible implementation manner,

0106the determining module is further configured to determine a resource element occupied by the CSI-RS transmission; and

0107the transmission module is further configured to skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0108In a seventh possible implementation manner, with reference to the third aspect or the first possible implementation manner to the sixth possible implementation manner,

0109the determining module is further configured to determine a subframe for the CSI-RS transmission; and

0110the transmission module is further configured to skip transmitting the first information in the subframe for the CSI-RS transmission.

0111In an eighth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the seventh possible implementation manner,

0112the determining module is configured to determine an available CSI-RS configuration according to a preset rule, or set an available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0113the determining module is configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission; and

0114the information transmission apparatus further includes:

0115a notification module, configured to notify user equipment of the available CSI-RS configuration by using signaling.

0116In a ninth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the eighth possible implementation manner,

0117the determining module is configured to determine an available CSI-RS subframe configuration according to a preset rule, or set an available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0118the determining module is configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration; and

0119the notification module is further configured to notify user equipment of the available CSI-RS subframe configuration by using signaling.

0120In a tenth possible implementation manner, with reference to the third aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0121an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0122According to a fourth aspect, an embodiment of the present disclosure further provides an information transmission apparatus, including:

0123a determining unit, configured to determine a subframe for enhanced transmission of first information; and

0124a receiving unit, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where

0125the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0126In a first possible implementation manner, according to the fourth aspect,

0127for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0128for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0129In a second possible implementation manner, with reference to the fourth aspect or the first possible implementation manner,

0130for the FDD system,

0131the subframe for the enhanced transmission of the first information includes the subframe 9; or

0132the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0133for the TDD system,

0134the subframe for the enhanced transmission of the first information includes the subframe 0; or

0135the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0136In a third possible implementation manner, with reference to the fourth aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0137for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0138for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0139In a fourth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the third possible implementation manner,

0140for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0141for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0142In a fifth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the fourth possible implementation manner,

0143the determining unit is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0144the receiving unit is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0145In a sixth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the fifth possible implementation manner,

0146the determining unit is further configured to determine a resource element occupied by the CSI-RS transmission; and

0147the receiving unit is further configured to skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0148In a seventh possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the sixth possible implementation manner,

0149the determining unit is further configured to determine a subframe for the CSI-RS transmission; and

0150the receiving unit is further configured to skip receiving the first information in the subframe for the CSI-RS transmission.

0151In an eighth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the seventh possible implementation manner,

0152the determining unit is configured to determine an available CSI-RS configuration according to a preset rule, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0153the receiving unit is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration; and

0154the determining unit is further configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0155In a ninth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the eighth possible implementation manner,

0156the determining unit is configured to determine an available CSI-RS subframe configuration according to a preset rule, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0157the receiving unit is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration; and

0158the determining unit is further configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0159In a tenth possible implementation manner, with reference to the fourth aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0160an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0161According to a fifth aspect, an embodiment of the present disclosure provides a network device, including:

0162a processor, configured to determine a subframe for enhanced transmission of first information; and

0163a transmitter, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where

0164the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0165In a first possible implementation manner, according to the fifth aspect,

0166for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0167for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0168In a second possible implementation manner, with reference to the fifth aspect or the first possible implementation manner,

0169for the FDD system,

0170the subframe for the enhanced transmission of the first information includes the subframe 9; or

0171the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0172for the TDD system,

0173the subframe for the enhanced transmission of the first information includes the subframe 0; or

0174the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0175In a third possible implementation manner, with reference to the fifth aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0176for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0177for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0178In a fourth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the third possible implementation manner,

0179for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0180for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0181In a fifth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the fourth possible implementation manner,

0182the processor is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0183the transmitter is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0184In a sixth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the fifth possible implementation manner,

0185the processor is further configured to determine a resource element occupied by the CSI-RS transmission; and

0186the transmitter is further configured to skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0187In a seventh possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the sixth possible implementation manner,

0188the processor is further configured to determine a subframe for the CSI-RS transmission; and

0189the transmitter is further configured to skip transmitting the first information in the subframe for the CSI-RS transmission.

0190In an eighth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the seventh possible implementation manner,

0191the processor is configured to determine an available CSI-RS configuration according to a preset rule, or set an available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0192the processor is configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission; and

0193the transmitter is further configured to notify user equipment of the available CSI-RS configuration by using signaling.

0194In a ninth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the eighth possible implementation manner,

0195the processor is configured to determine an available CSI-RS subframe configuration according to a preset rule, or set an available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0196the processor is configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration; and

0197the transmitter is further configured to notify user equipment of the available CSI-RS subframe configuration by using signaling.

0198In a tenth possible implementation manner, with reference to the fifth aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0199an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0200According to a sixth aspect, an embodiment of the present disclosure further provides an information transmission device, including:

0201a processor, configured to determine a subframe for enhanced transmission of first information; and

0202a receiver, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where

0203the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0204In a first possible implementation manner, according to the sixth aspect,

0205for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0206for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0207In a second possible implementation manner, with reference to the sixth aspect or the first possible implementation manner,

0208for the FDD system,

0209the subframe for the enhanced transmission of the first information includes the subframe 9; or

0210the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0211for the TDD system,

0212the subframe for the enhanced transmission of the first information includes the subframe 0; or

0213the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0214In a third possible implementation manner, with reference to the sixth aspect or the first possible implementation manner or the second possible implementation manner, the subframe for the enhanced transmission of the first information further includes:

0215for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0216for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0217In a fourth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the third possible implementation manner,

0218for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0219for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0220In a fifth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the fourth possible implementation manner,

0221the processor is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0222the receiver is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0223In a sixth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the fifth possible implementation manner,

0224the processor is further configured to determine a resource element occupied by the CSI-RS transmission; and

0225the receiver is further configured to skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0226In a seventh possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the sixth possible implementation manner,

0227the processor is further configured to determine a subframe for the CSI-RS transmission; and

0228the receiver is further configured to skip receiving the first information in the subframe for the CSI-RS transmission.

0229In an eighth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the seventh possible implementation manner,

0230the processor is configured to determine an available CSI-RS configuration according to a preset rule, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0231the receiver is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration; and

0232the processor is further configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0233In a ninth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the eighth possible implementation manner,

0234the processor is configured to determine an available CSI-RS subframe configuration according to a preset rule, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0235the receiver is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration; and

0236the processor is further configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0237In a tenth possible implementation manner, with reference to the sixth aspect or the first possible implementation manner to the ninth possible implementation manner, the signaling includes:

0238an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0239According to a seventh aspect, an embodiment of the present disclosure provides an information transmission system, including the base station having any feature described above and the user equipment having any feature described above.

0240According to an eighth aspect, an embodiment of the present disclosure provides an information transmission method, where the method includes:

0241determining a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and

0242performing the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0243In a first possible implementation manner, according to the eighth aspect, the performing the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information includes:

0244if the first information is a master information block, performing the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; or

0245if the first information is an SIB including a TDD configuration, performing the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or

0246if the first information is an SIB including an MBSFN subframe configuration, performing the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0247In a second possible implementation manner, with reference to the eighth aspect or the first possible implementation manner,

0248for a frequency division duplex FDD system or a half frequency division duplex Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0249for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0250In a third possible implementation manner, with reference to the eighth aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0251In a fourth possible implementation manner, with reference to the eighth aspect or the first possible implementation manner to the third possible implementation manner,

0252the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0253the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0254the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0255the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0256the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0257In a fifth possible implementation manner, with reference to the eighth aspect or the first possible implementation manner to the fourth possible implementation manner,

0258when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0259when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0260In a sixth possible implementation manner, with reference to the eighth aspect or the first possible implementation manner to the fifth possible implementation manner,

0261if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0262if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration.

0263In a seventh possible implementation manner, with reference to the eighth aspect or the first possible implementation manner to the sixth possible implementation manner, the method further includes:

0264determining a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0265RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0266In an eighth possible implementation manner, with reference to the eighth aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0267the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0268the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0269the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0270According to a ninth aspect, an embodiment of the present disclosure further provides an information transmission method, where the method includes:

0271determining a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and

0272receiving the first information in the determined subframe for the enhanced transmission of the first information.

0273In a first possible implementation manner, according to the ninth aspect, the receiving the first information in the determined subframe for the enhanced transmission of the first information includes:

0274if the first information is a master information block, receiving the master information block in at least one radio frame a quantity of times that is greater than one time; or

0275if the first information is an SIB including a TDD configuration, receiving the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or

0276if the first information is an SIB including an MBSFN subframe configuration, receiving the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0277In a second possible implementation manner, with reference to the ninth aspect or the first possible implementation manner,

0278for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0279for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0280In a third possible implementation manner, with reference to the ninth aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0281In a fourth possible implementation manner, with reference to the ninth aspect or the first possible implementation manner to the third possible implementation manner,

0282the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0283the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0284the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0285the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0286the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0287In a fifth possible implementation manner, with reference to the ninth aspect or the first possible implementation manner to the fourth possible implementation manner,

0288when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0289when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0290In a sixth possible implementation manner, with reference to the ninth aspect or the first possible implementation manner to the fifth possible implementation manner,

0291if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0292if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration.

0293In a seventh possible implementation manner, with reference to the ninth aspect or the first possible implementation manner to the sixth possible implementation manner, the method further includes:

0294determining a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0295RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0296In an eighth possible implementation manner, with reference to the ninth aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0297the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0298the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0299the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0300According to a tenth aspect, an embodiment of the present disclosure provides an information transmission apparatus, including:

0301a determining module, configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and

0302a sending module, configured to: after the determining module determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0303In a first possible implementation manner, according to the tenth aspect,

0304the sending module is configured to: if the first information is a master information block, perform the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, perform the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, perform the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0305In a second possible implementation manner, with reference to the tenth aspect or the first possible implementation manner,

0306for a frequency division duplex FDD system or a half frequency division duplex Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0307for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0308In a third possible implementation manner, with reference to the tenth aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0309In a fourth possible implementation manner, with reference to the tenth aspect or the first possible implementation manner to the third possible implementation manner,

0310the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0311the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0312the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0313the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0314the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0315In a fifth possible implementation manner, with reference to the tenth aspect or the first possible implementation manner to the fourth possible implementation manner,

0316when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0317when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0318In a sixth possible implementation manner, with reference to the tenth aspect or the first possible implementation manner to the fifth possible implementation manner,

0319if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0320if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration.

0321In a seventh possible implementation manner, with reference to the tenth aspect or the first possible implementation manner to the sixth possible implementation manner,

0322the determining module is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0323RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0324In an eighth possible implementation manner, with reference to the tenth aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0325the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0326the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0327the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0328According to an eleventh aspect, an embodiment of the present disclosure further provides an information transmission apparatus, including:

0329a determining module, configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and

0330a receiving module, configured to: after the determining module determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information.

0331In a first possible implementation manner, according to the eleventh aspect,

0332the receiving module is configured to: if the first information is a master information block, receive the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, receive the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, receive the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0333In a second possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner,

0334for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0335for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0336In a third possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0337In a fourth possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner to the third possible implementation manner,

0338the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0339the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0340the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0341the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0342the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0343In a fifth possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner to the fourth possible implementation manner,

0344when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0345when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0346In a sixth possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner to the fifth possible implementation manner,

0347if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0348if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration.

0349In a seventh possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner to the sixth possible implementation manner,

0350the determining module is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0351RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0352In an eighth possible implementation manner, with reference to the eleventh aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0353the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0354the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0355the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0356According to a twelfth aspect, an embodiment of the present disclosure provides a network device, including:

0357a processor, configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and

0358a transmitter, configured to: after the processor determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0359In a first possible implementation manner, according to the twelfth aspect,

0360the transmitter is configured to: if the first information is a master information block, perform the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, perform the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, perform the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0361In a second possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner,

0362for a frequency division duplex FDD system or a half frequency division duplex Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0363for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0364In a third possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0365In a fourth possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner to the third possible implementation manner,

0366the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0367the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0368the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0369the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0370the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0371In a fifth possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner to the fourth possible implementation manner,

0372when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0373when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0374In a sixth possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner to the fifth possible implementation manner,

0375if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0376if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration.

0377In a seventh possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner to the sixth possible implementation manner,

0378the processor is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0379RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0380In an eighth possible implementation manner, with reference to the twelfth aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0381the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0382the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0383the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0384According to a thirteenth aspect, an embodiment of the present disclosure further provides an information transmission device, including:

0385a processor, configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and

0386a receiver, configured to: after the processor determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information.

0387In a first possible implementation manner, according to the thirteenth aspect,

0388the receiver is configured to: if the first information is a master information block, receive the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, receive the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, receive the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0389In a second possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner,

0390for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0391for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0392In a third possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner or the second possible implementation manner, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0393In a fourth possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner to the third possible implementation manner,

0394the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0395the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0396the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0397the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0398the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0399In a fifth possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner to the fourth possible implementation manner,

0400when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0401when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0402In a sixth possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner to the fifth possible implementation manner,

0403if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0404if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration.

0405In a seventh possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner to the sixth possible implementation manner,

0406the processor is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0407RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0408In an eighth possible implementation manner, with reference to the thirteenth aspect or the first possible implementation manner to the seventh possible implementation manner, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0409the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0410the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0411the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0412According to a fourteenth aspect, an embodiment of the present disclosure provides an information transmission system, including the network device having any feature described above and the information transmission device having any feature described above.

0413According to the information transmission method, apparatus, and system provided in the embodiments of the present disclosure, a subframe for enhanced transmission of first information is determined, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration, and the enhanced transmission of the first information is performed in the determined subframe for the enhanced transmission of the first information. According to the solutions, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

BRIEF DESCRIPTION OF DRAWINGS

0414To describe the technical solutions in the embodiments of the present disclosure more clearly, the following briefly describes the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

0415<figref idref="DRAWINGS">FIG. 1</figref> is a first schematic flowchart of an information transmission method according to Embodiment 1 of the present disclosure;

0416<figref idref="DRAWINGS">FIG. 2</figref> is a second schematic flowchart of an information transmission method according to Embodiment 2 of the present disclosure;

0417<figref idref="DRAWINGS">FIG. 3</figref> is a third schematic flowchart of an information transmission method according to Embodiment 3 of the present disclosure;

0418<figref idref="DRAWINGS">FIG. 4</figref> is a schematic flowchart of determining, by a base station, a resource element occupied by CSI-RS transmission according to Embodiment 3 of the present disclosure;

0419<figref idref="DRAWINGS">FIG. 5</figref> is a schematic flowchart of determining, by a base station, a subframe for CSI-RS transmission according to Embodiment 3 of the present disclosure;

0420<figref idref="DRAWINGS">FIG. 6</figref> is a fourth schematic flowchart of an information transmission method according to Embodiment 4 of the present disclosure;

0421<figref idref="DRAWINGS">FIG. 7</figref> is a fifth schematic flowchart of an information transmission method according to Embodiment 5 of the present disclosure;

0422<figref idref="DRAWINGS">FIG. 8</figref> is a first schematic flowchart of another information transmission method according to Embodiment 6 of the present disclosure;

0423<figref idref="DRAWINGS">FIG. 9</figref> is a second schematic flowchart of another information transmission method according to Embodiment 7 of the present disclosure;

0424<figref idref="DRAWINGS">FIG. 10</figref> is a third schematic flowchart of another information transmission method according to Embodiment 8 of the present disclosure;

0425<figref idref="DRAWINGS">FIG. 11</figref> is a schematic flowchart of determining, by user equipment, a resource element occupied by CSI-RS transmission according to Embodiment 8 of the present disclosure;

0426<figref idref="DRAWINGS">FIG. 12</figref> is a schematic flowchart of determining, by user equipment, a subframe for CSI-RS transmission according to Embodiment 8 of the present disclosure;

0427<figref idref="DRAWINGS">FIG. 13</figref> is a fourth schematic flowchart of another information transmission method according to Embodiment 9 of the present disclosure;

0428<figref idref="DRAWINGS">FIG. 14</figref> is a fifth schematic flowchart of another information transmission method according to Embodiment 10 of the present disclosure;

0429<figref idref="DRAWINGS">FIG. 15</figref> is a first schematic structural diagram of an information transmission apparatus according to Embodiment 11 of the present disclosure;

0430<figref idref="DRAWINGS">FIG. 16</figref> is a second schematic structural diagram of an information transmission apparatus according to Embodiment 11 of the present disclosure;

0431<figref idref="DRAWINGS">FIG. 17</figref> is a schematic structural diagram of another information transmission apparatus according to Embodiment 12 of the present disclosure;

0432<figref idref="DRAWINGS">FIG. 18</figref> is a schematic structural diagram of a network device according to Embodiment 13 of the present disclosure;

0433<figref idref="DRAWINGS">FIG. 19</figref> is a schematic structural diagram of an information transmission device according to Embodiment 14 of the present disclosure;

0434<figref idref="DRAWINGS">FIG. 20</figref> is a schematic flowchart of an information transmission method according to Embodiment 16 of the present disclosure;

0435<figref idref="DRAWINGS">FIG. 21</figref> is a schematic flowchart of an information transmission method according to Embodiment 17 of the present disclosure;

0436<figref idref="DRAWINGS">FIG. 22</figref> is a schematic flowchart of an information transmission method according to Embodiment 18 of the present disclosure;

0437<figref idref="DRAWINGS">FIG. 23</figref> is a schematic flowchart of an information transmission method according to Embodiment 19 of the present disclosure;

0438<figref idref="DRAWINGS">FIG. 24</figref> is a schematic structural diagram of an information transmission apparatus according to Embodiment 20 of the present disclosure;

0439<figref idref="DRAWINGS">FIG. 25</figref> is a schematic structural diagram of an information transmission apparatus according to Embodiment 21 of the present disclosure;

0440<figref idref="DRAWINGS">FIG. 26</figref> is a schematic structural diagram of a network device according to Embodiment 22 of the present disclosure; and

0441<figref idref="DRAWINGS">FIG. 27</figref> is a schematic structural diagram of an information transmission device according to Embodiment 23 of the present disclosure.

DESCRIPTION OF EMBODIMENTS

0442The following clearly describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely some but not all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

0443A network device described in the embodiments of the present disclosure may be a base station, or may be a network device such as a router, a gateway, or a mobility management entity. An information transmission device described in the embodiments of the present disclosure may be user equipment, or may be another device that can be configured to transmit information. The present disclosure sets no limitations thereto. For the present disclosure, specific embodiments of the present disclosure are described by using an example in which the network device is a base station and the information transmission device is user equipment. In addition, enhanced transmission mentioned in the present disclosure may be one or more types of transmission in repeated transmission, spread spectrum transmission, transmission time interval bundling transmission, power increased transmission, or retransmission, which is not limited in the present disclosure.

Embodiment 1

0444This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 1</figref>, the method includes:

0445S<b>101</b>: A base station determines a subframe for enhanced transmission of first information.

0446Coverage enhancement needs to be performed on coverage of an LTE network, so as to ensure that user equipment can reliably communicate with the base station when the user equipment is in a basement or channel quality is poor. In an existing LTE or LTE-A system, a PBCH for carrying one time of transmission of an MIB, a PDCCH for scheduling one time of transmission of an SIB 1, a PDSCH for carrying one time of transmission of the SIB 1, a PDCCH for scheduling one time of transmission of SI, and a PDSCH for carrying one time of transmission of the SI are all transmitted in one subframe. In the existing LTE or LTE-A system, the user equipment performs channel measurement by using a CSI-RS. The base station performs CSI-RS configuration and CSI-RS subframe configuration for the user equipment by using dedicated signaling, so that the user equipment learns which subframes a CSI-RS is transmitted in and also learns a configuration of the CSI-RS.

0447In the case of coverage enhancement, MIB information may be transmitted multiple times to improve transmission reliability of an MIB, and a PBCH for carrying multiple times of transmission of the MIB may be referred to as an enhanced PBCH. Similarly, control information may be transmitted multiple times to improve transmission reliability of the control information, and a PDCCH for carrying multiple times of transmission of the control information may be referred to as an enhanced PDCCH. Data may be transmitted multiple times to improve transmission reliability of the data, and a PDSCH for carrying multiple times of transmission of the data is referred to as an enhanced PDSCH. The data herein includes, but is not limited to, an SIB 1, SI, another SIB, unicast data, a paging message, a random access response, or other common data. In this case, UE that requires coverage enhancement does not know a CSI-RS configuration and a CSI-RS subframe configuration that are configured by the base station for Normal UE or Legacy UE, where the Normal UE band the Legacy UE both are referred to as normal UE. When the enhanced transmission of the first information is performed, where the first information may be an MIB, control information, or data, if the enhanced transmission of the first information is not limited, CSI-RS transmission may collide with the enhanced transmission of the first information, lowering transmission reliability of the first information.

0448This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0449First, the base station determines the subframe for the enhanced transmission of the first information.

0450Specifically, a method of how the base station determines the subframe for the enhanced transmission of the first information is described in detail in the following embodiments, and details are not described herein.

0451S<b>102</b>: The base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips channel state information-reference signal CSI-RS transmission on a resource element occupied by the enhanced transmission of the first information.

0452The first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0453After determining the subframe for the enhanced transmission of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on the resource element occupied by the enhanced transmission of the first information.

0454It should be noted that, according to different types of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information at different frequencies. When the first information is a master information block MIB, a quantity of times of repeatedly sending the MIB in at least one radio frame is greater than one time; or when the first information is a system information block type 1 SIB 1, a quantity of times of repeatedly sending the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeatedly sending the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0455According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information is repeatedly transmitted multiple times in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the enhanced transmission of the first information, where the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 2

0456This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 2</figref>, the method includes:

0457S<b>201</b>: A base station determines a subframe for enhanced transmission of first information, where for an FDD (Frequency Division Duplex, frequency division duplex) system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and for a TDD (Time Division Duplex, time division duplex) system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0458This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between a subframe for CSI-RS transmission and a subframe for enhanced transmission, improving transmission reliability of first information.

0459First, the base station determines the subframe for the enhanced transmission of the first information.

0460CSI-RS transmission cannot be performed in a paging subframe determined in a cell specific paging configuration and a special subframe of the TDD. Similarly, if the CSI-RS transmission collides with transmission of a PBCH, a synchronization channel, or an SIB 1, the CSI-RS transmission cannot be performed in subframes for transmitting the PBCH, the synchronization channel, or the SIB 1, either. Therefore, the base station may choose to determine the subframe for the enhanced transmission of the first information from the foregoing subframes, so as to avoid a collision between the CSI-RS transmission and the enhanced transmission of the first information, improving transmission reliability of the first information.

0461In an existing LTE or LTE-A system, time-domain resources are divided as radio frames, and the radio frames are numbered 0 to 1023. One radio frame includes 10 subframes, a time length of one subframe is 1 ms, and subframes in each radio frame are numbered 0 to 9.

0462It should be noted that, for the FDD and TDD systems, a PBCH is transmitted in a subframe 0, and an SIB 1 is transmitted in a subframe 5 in an even-numbered radio frame. For the TDD system, a subframe 1 is surely a special subframe, and a subframe 6 may be a special subframe.

0463It should be noted that, for a paging message, nB is used for determining a period of a radio frame including a paging subframe, and/or a quantity of paging subframes included in one radio frame. A value of nB is 4T, 2T, T, T/2, T/4, T/8, T/16, or T/32. Therein is a discontinuous receiving period of user equipment. When nB is greater than or equal to T, each radio frame has a paging subframe and each radio frame has nB/T paging subframes. When nB is less than T, one radio frame in every (T/nB) radio frames has a paging subframe, and the radio frame including a paging subframe has only one paging subframe.

0464Exemplarily, when nB=4T, each radio frame includes four paging subframes; or

0465when nB=T/4, one radio frame in every four radio frames has a paging subframe, and the radio frame including a paging subframe has only one paging subframe.

0466For the FDD system, if one radio frame includes one paging subframe, the subframe 9 is a paging subframe; if one radio frame includes two paging subframes, the subframe 4 and the subframe 9 are paging subframes; or if one radio frame includes four paging subframes, the subframe 0, the subframe 4, the subframe 5, and the subframe 9 are paging subframes; and

0467for the TDD system, if one radio frame includes one paging subframe, the subframe 0 is a paging subframe; if one radio frame includes two paging subframes, the subframe 0 and the subframe 5 are paging subframes; or if one radio frame includes four paging subframes, the subframe 0, the subframe 1, the subframe 5, and the subframe 6 are paging subframes.

0468Therefore, this embodiment of the present disclosure provides an information transmission method, where the determining a subframe for enhanced transmission of first information may be:

0469for the FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0470for the TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0471For the FDD system,

0472the subframe for the enhanced transmission of the first information includes the subframe 9; or

0473the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0474for the TDD system,

0475the subframe for the enhanced transmission of the first information includes the subframe 0; or

0476the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0477It should be additionally noted that, the subframe for the enhanced transmission of the first information further includes:

0478for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0479for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0480For the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0481for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0482S<b>202</b>: The base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips channel state information-reference signal CSI-RS transmission on a resource element occupied by the enhanced transmission of the first information.

0483The first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0484After determining the subframe for the enhanced transmission of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on the resource element occupied by the enhanced transmission of the first information.

0485It should be noted that, according to different types of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information at different frequencies. When the first information is a master information block MIB, a quantity of times of repeatedly sending the MIB in at least one radio frame is greater than one time; or when the first information is a system information block type 1 SIB 1, a quantity of times of repeatedly sending the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeatedly sending the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0486According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information is repeatedly transmitted multiple times in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the enhanced transmission of the first information, where the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 3

0487This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 3</figref>, the method includes:

0488S<b>301</b>: A base station determines a subframe for enhanced transmission of first information.

0489This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0490First, the base station determines the subframe for the enhanced transmission of the first information.

0491S<b>302</b>: The base station determines a resource element occupied by CSI-RS transmission and a subframe for the CSI-RS transmission.

0492After the base station determines the subframe for the enhanced transmission of the first information, the base station needs to determine the resource element occupied by the CSI-RS transmission and the subframe for the CSI-RS transmission.

0493A method of determining, by the base station, a resource element occupied by CSI-RS transmission is as shown in <figref idref="DRAWINGS">FIG. 4</figref>, and includes:

0494S<b>401</b>: The base station determines an available CSI-RS configuration according to a preset rule, or the base station sets an available CSI-RS configuration and notifies user equipment of the available CSI-RS configuration by using signaling, where the available CSI-RS configuration includes one or more CSI-RS configurations.

0495It should be noted that, there are two methods for the base station to determine an available CSI-RS configuration. If a system or a standard presets an available CSI-RS configuration, the base station determines an available CSI-RS configuration according to a preset rule. If the system or the standard does not preset an available CSI-RS configuration, the base station autonomously sets an available CSI-RS configuration, and notifies the user equipment of the set available CSI-RS configuration by using signaling.

0496The available CSI-RS configuration includes one or more CSI-RS configurations.

0497S<b>402</b>: The base station determines, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0498After determining the available CSI-RS configuration, the base station determines, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0499The method described in the present disclosure of determining, by the base station, a resource element occupied by CSI-RS transmission is also applicable in the following embodiments, and is not described in the following embodiments again.

0500A method of determining, by the base station, a subframe for the CSI-RS transmission is as shown in <figref idref="DRAWINGS">FIG. 5</figref>, and includes:

0501S<b>501</b>: The base station determines an available CSI-RS subframe configuration according to a preset rule, or the base station sets an available CSI-RS subframe configuration and notifies user equipment of the available CSI-RS subframe configuration by using signaling, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations.

0502It should be noted that, there are two methods for the base station to determine an available CSI-RS subframe configuration. If a system or a standard presets an available CSI-RS subframe configuration, the base station determines an available CSI-RS subframe configuration according to a preset rule. If the system or the standard does not preset an available CSI-RS subframe configuration, the base station autonomously sets an available CSI-RS subframe configuration, and notifies the user equipment of the set available CSI-RS subframe configuration by using signaling.

0503The available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations.

0504S<b>502</b>: The base station determines the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0505After determining the available CSI-RS subframe configuration, the base station determines the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0506The method described in the present disclosure of determining, by the base station, a subframe for the CSI-RS transmission is also applicable in the following embodiments, and is not described in the following embodiments again.

0507It should be noted that, the signaling mentioned in steps S<b>401</b>, S<b>402</b>, S<b>501</b>, and S<b>502</b> includes:

0508an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0509S<b>303</b>: If the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, the base station skips transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0510After the base station determines the resource element occupied by the CSI-RS transmission and the subframe for the CSI-RS transmission, if the CSI-RS transmission is performed in the determined subframe for the enhanced transmission of the first information, that is, the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, the base station skips performing multiple times of repeatedly transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0511S<b>304</b>: The base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on a resource element occupied by the enhanced transmission of the first information.

0512The first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0513After determining the subframe for the enhanced transmission of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on the resource element occupied by the enhanced transmission of the first information.

0514It should be noted that, according to different types of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information at different frequencies. When the first information is a master information block MIB, a quantity of times of repeatedly sending the MIB in at least one radio frame is greater than one time; or when the first information is a system information block type 1 SIB 1, a quantity of times of repeatedly sending the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeatedly sending the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0515According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information is repeatedly transmitted multiple times in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the enhanced transmission of the first information, where the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 4

0516This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 6</figref>, the method includes:

0517S<b>601</b>: A base station determines a subframe for enhanced transmission of first information.

0518This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0519First, the base station determines the subframe for the enhanced transmission of the first information.

0520S<b>602</b>: The base station determines a resource element occupied by CSI-RS transmission.

0521After the base station determines the subframe for the enhanced transmission of the first information, the base station needs to determine the resource element occupied by the CSI-RS transmission.

0522S<b>603</b>: The base station skips transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0523After determining the resource element occupied by the CSI-RS transmission, the base station skips performing multiple times of repeatedly transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0524S<b>604</b>: The base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on a resource element occupied by the enhanced transmission of the first information.

0525The first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0526After determining the subframe for the enhanced transmission of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on the resource element occupied by the enhanced transmission of the first information.

0527It should be noted that, according to different types of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information at different frequencies. When the first information is a master information block MIB, a quantity of times of repeatedly sending the MIB in at least one radio frame is greater than one time; or when the first information is a system information block type 1 SIB 1, a quantity of times of repeatedly sending the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeatedly sending the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0528According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information is repeatedly transmitted multiple times in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the enhanced transmission of the first information, where the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 5

0529This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 7</figref>, the method includes:

0530S<b>701</b>: A base station determines a subframe for enhanced transmission of first information.

0531This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0532First, the base station determines the subframe for the enhanced transmission of the first information.

0533S<b>702</b>: The base station determines a subframe for CSI-RS transmission.

0534After the base station determines the subframe for the enhanced transmission of the first information, the base station needs to determine the subframe for the CSI-RS transmission.

0535S<b>703</b>: The base station skips transmitting the first information in the subframe for the CSI-RS transmission.

0536After determining the subframe for the CSI-RS transmission, the base station skips performing multiple times of repeatedly transmitting the first information in the subframe for the CSI-RS transmission, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0537S<b>704</b>: The base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on a resource element occupied by the enhanced transmission of the first information.

0538The first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0539After determining the subframe for the enhanced transmission of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skips the channel state information-reference signal CSI-RS transmission on the resource element occupied by the enhanced transmission of the first information.

0540It should be noted that, according to different types of the first information, the base station repeatedly transmits the first information multiple times in the determined subframe for the enhanced transmission of the first information at different frequencies. When the first information is a master information block MIB, a quantity of times of repeatedly sending the MIB in at least one radio frame is greater than one time; or when the first information is a system information block type 1 SIB 1, a quantity of times of repeatedly sending the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeatedly sending the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0541According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information is repeatedly transmitted multiple times in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the enhanced transmission of the first information, where the first information is a master information block MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is a system information block type 1 SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 6

0542This embodiment of the present disclosure provides another information transmission method. As shown in <figref idref="DRAWINGS">FIG. 8</figref>, the method includes:

0543S<b>801</b>: User equipment determines a subframe for enhanced transmission of first information.

0544Coverage enhancement needs to be performed on coverage of an LTE network, so as to ensure that the user equipment can reliably communicate with a base station when the user equipment is in a basement or channel quality is poor. In an existing LTE or LTE-A system, a PBCH for carrying one time of transmission of an MIB, a PDCCH for scheduling one time of transmission of an SIB 1, a PDSCH for carrying one time of transmission of the SIB 1, a PDCCH for scheduling one time of transmission of SI, and a PDSCH for carrying one time of transmission of the SI are all transmitted in one subframe. In the existing LTE or LTE-A system, the user equipment may perform channel measurement by using a CSI-RS. The base station performs CSI-RS configuration and CSI-RS subframe configuration for the user equipment by using dedicated signaling, so that the user equipment learns which subframes a CSI-RS is transmitted in and also learns a configuration of the CSI-RS.

0545In the case of coverage enhancement, MIB information may be transmitted multiple times to improve transmission reliability of an MIB, and a PBCH for carrying multiple times of transmission of the MIB may be referred to as an enhanced PBCH. Similarly, control information may be transmitted multiple times to improve transmission reliability of the control information, and a PDCCH for carrying multiple times of transmission of the control information may be referred to as an enhanced PDCCH. Data may be transmitted multiple times to improve transmission reliability of the data, and a PDSCH for carrying multiple times of transmission of the data is referred to as an enhanced PDSCH. The data herein includes, but is not limited to, an SIB 1, SI, another SIB, unicast data, a paging message, a random access response, or other common data. In this case, UE that requires coverage enhancement does not know a CSI-RS configuration and a CSI-RS subframe configuration that are configured by the base station for Normal UE or Legacy UE, where the Normal UE band the Legacy UE both are referred to as normal UE. When the enhanced transmission of the first information is performed, where the first information may be an MIB, control information, or data, if the enhanced transmission of the first information is not limited, CSI-RS transmission may collide with the enhanced transmission of the first information, lowering transmission reliability of the first information.

0546This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0547First, the user equipment determines the subframe for the enhanced transmission of the first information.

0548a method of how the user equipment determines the subframe for the enhanced transmission of the first information is described in detail in the following embodiments, and details are not described herein.

0549S<b>802</b>: The user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips CSI-RS transmission on a resource element occupied by the received first information that is repeatedly transmitted multiple times.

0550The first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0551After determining the subframe for the enhanced transmission of the first information, the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on the resource element occupied by the received first information.

0552It should be noted that, according to different types of the first information, the user equipment receives, at different frequencies in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times. When the first information is an MIB, a quantity of times of repeated receiving of the MIB in at least one radio frame is greater than one time; or when the first information is an SIB 1, a quantity of times of repeated receiving of the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, a quantity of times of repeated receiving of the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0553It should be noted that, according to the information transmission method provided in this embodiment of the present disclosure, after the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, the user equipment can further combine the received first information that is repeatedly transmitted multiple times, and detect the combined first information.

0554According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information repeatedly transmitted multiple times is received in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 7

0555This embodiment of the present disclosure provides another information transmission method. As shown in <figref idref="DRAWINGS">FIG. 9</figref>, the method includes:

0556S<b>901</b>: User equipment determines a subframe for enhanced transmission of first information, where for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0557This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between a subframe for CSI-RS transmission and a subframe for enhanced transmission, improving transmission reliability of first information.

0558First, the user equipment determines the subframe for the enhanced transmission of the first information.

0559CSI-RS transmission cannot be performed in a paging subframe determined in a cell specific paging configuration and a special subframe of the TDD. Similarly, if the CSI-RS transmission collides with transmission of a PBCH, a synchronization channel, or an SIB 1, the CSI-RS transmission cannot be performed in subframes for transmitting the PBCH, the synchronization channel, or the SIB 1, either. Therefore, the user equipment may choose to determine the subframe for the enhanced transmission of the first information from the foregoing subframes, so as to avoid a collision between the CSI-RS transmission and the enhanced transmission of the first information, improving transmission reliability of the first information.

0560In an existing LTE or LTE-A system, time-domain resources are divided as radio frames, and the radio frames are numbered 0 to 1023. One radio frame includes 10 subframes, a time length of one subframe is 1 ms, and subframes in each radio frame are numbered 0 to 9.

0561It should be noted that, for the FDD and TDD systems, a PBCH is transmitted in a subframe 0, and an SIB 1 is transmitted in a subframe 5 in an even-numbered radio frame; and for the TDD system, a subframe 1 is surely a special subframe, and a subframe 6 may be a special subframe.

0562It should be noted that, for a paging message, nB is used for determining a period of a radio frame including a paging subframe, and/or a quantity of paging subframes included in one radio frame. A value of nB is 4T, 2T, T, T/2, T/4, T/8, T/16, or T/32. Therein is a discontinuous receiving period of the user equipment. When nB is greater than or equal to T, each radio frame has a paging subframe and each radio frame has nB/T paging subframes. When nB is less than T, one radio frame in every (T/nB) radio frames has a paging subframe, and the radio frame including a paging subframe has only one paging subframe.

0563Exemplarily, when nB=4T, each radio frame includes four paging subframes; or

0564when nB=T/4, one radio frame in every four radio frames has a paging subframe, and the radio frame including a paging subframe has only one paging subframe.

0565For the FDD system, if one radio frame includes one paging subframe, the subframe 9 is a paging subframe; if one radio frame includes two paging subframes, the subframe 4 and the subframe 9 are paging subframes; or if one radio frame includes four paging subframes, the subframe 0, the subframe 4, the subframe 5, and the subframe 9 are paging subframes; and

0566for the TDD system, if one radio frame includes one paging subframe, the subframe 0 is a paging subframe; if one radio frame includes two paging subframes, the subframe 0 and the subframe 5 are paging subframes; or if one radio frame includes four paging subframes, the subframe 0, the subframe 1, the subframe 5, and the subframe 6 are paging subframes.

0567Therefore, this embodiment of the present disclosure provides an information transmission method, where the determining a subframe for enhanced transmission of first information may be:

0568for the FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0569for the TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0570For the FDD system,

0571the subframe for the enhanced transmission of the first information includes the subframe 9; or

0572the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0573for the TDD system,

0574the subframe for the enhanced transmission of the first information includes the subframe 0; or

0575the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0576It should be additionally noted that, the subframe for the enhanced transmission of the first information further includes:

0577for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0578for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0579For the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0580for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0581S<b>902</b>: The user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips CSI-RS transmission on a resource element occupied by the received first information that is repeatedly transmitted multiple times.

0582The first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0583After determining the subframe for the enhanced transmission of the first information, the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on the resource element occupied by the received first information.

0584It should be noted that, according to different types of the first information, the user equipment receives, at different frequencies in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times. When the first information is an MIB, a quantity of times of repeated receiving of the MIB in at least one radio frame is greater than one time; or when the first information is an SIB 1, a quantity of times of repeated receiving of the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeated receiving of the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0585It should be noted that, according to the information transmission method provided in this embodiment of the present disclosure, after the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, the user equipment can further combine and detect the received first information that is repeatedly transmitted multiple times, improving detection reliability of the first information.

0586According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information repeatedly transmitted multiple times is received in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 8

0587This embodiment of the present disclosure provides another information transmission method. As shown in <figref idref="DRAWINGS">FIG. 10</figref>, the method includes:

0588S<b>1001</b>: User equipment determines a subframe for enhanced transmission of first information.

0589This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0590First, the user equipment determines the subframe for the enhanced transmission of the first information.

0591S<b>1002</b>: The user equipment determines a resource element occupied by CSI-RS transmission and a subframe for the CSI-RS transmission.

0592After the user equipment determines the subframe for the enhanced transmission of the first information, the user equipment needs to determine the resource element occupied by the CSI-RS transmission and the subframe for the CSI-RS transmission.

0593The determining, by the user equipment, a resource element occupied by CSI-RS transmission is as shown in <figref idref="DRAWINGS">FIG. 11</figref>, and includes:

0594S<b>1101</b>: The user equipment determines an available CSI-RS configuration according to a preset rule, or receives signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations.

0595It should be noted that, there are two methods for the user equipment to determine an available CSI-RS configuration. If a system or a standard presets an available CSI-RS configuration, the user equipment determines an available CSI-RS configuration according to a preset rule. If the system or the standard does not preset an available CSI-RS configuration, the user equipment receives signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration.

0596The available CSI-RS configuration includes one or more CSI-RS configurations.

0597S<b>1102</b>: The user equipment determines, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0598After determining the available CSI-RS configuration, the user equipment determines, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0599The method described in the present disclosure of determining, by the user equipment, a resource element occupied by CSI-RS transmission is also applicable in the following embodiments, and is not described in the following embodiments again.

0600The determining, by the user equipment, a subframe for the CSI-RS transmission is as shown in <figref idref="DRAWINGS">FIG. 12</figref>, and includes:

0601S<b>1201</b>: The user equipment determines an available CSI-RS subframe configuration according to a preset rule, or receives signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations.

0602It should be noted that, there are two methods for the user equipment to determine an available CSI-RS subframe configuration. If a system or a standard presets an available CSI-RS subframe configuration, the user equipment determines an available CSI-RS subframe configuration according to a preset rule. If the system or the standard does not preset an available CSI-RS subframe configuration, the user equipment receives signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration.

0603The available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations.

0604S<b>1202</b>: The user equipment determines the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0605After determining the available CSI-RS subframe configuration, the user equipment determines the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0606The method described in the present disclosure of determining, by the user equipment, a subframe for the CSI-RS transmission is also applicable in the following embodiments, and is not described in the following embodiments again.

0607It should be noted that, the signaling mentioned in steps S<b>1101</b>, S<b>1102</b>, S<b>1201</b>, and S<b>1202</b> includes:

0608an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0609S<b>1003</b>: If the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, the user equipment skips receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0610After the user equipment determines the resource element occupied by the CSI-RS transmission and the subframe for the CSI-RS transmission, if the CSI-RS transmission is performed in the determined subframe for the enhanced transmission of the first information, the user equipment skips receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0611S<b>1004</b>: The user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on a resource element occupied by the received first information that is repeatedly transmitted multiple times.

0612The first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0613After determining the subframe for the enhanced transmission of the first information, the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on the resource element occupied by the received first information.

0614It should be noted that, according to different types of the first information, the user equipment receives, at different frequencies in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times. When the first information is an MIB, a quantity of times of repeated receiving of the MIB in at least one radio frame is greater than one time; or when the first information is an SIB 1, a quantity of times of repeated receiving of the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeated receiving of the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0615It should be noted that, according to the information transmission method provided in this embodiment of the present disclosure, after the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, the user equipment can further combine the received first information that is repeatedly transmitted multiple times, and detect the combined first information.

0616According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information repeatedly transmitted multiple times is received in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 9

0617This embodiment of the present disclosure provides another information transmission method. As shown in <figref idref="DRAWINGS">FIG. 13</figref>, the method includes:

0618S<b>1301</b>: User equipment determines a subframe for enhanced transmission of first information.

0619This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0620First, the user equipment determines the subframe for the enhanced transmission of the first information.

0621S<b>1302</b>: The user equipment determines a resource element occupied by CSI-RS transmission.

0622After the user equipment determines the subframe for the enhanced transmission of the first information, the user equipment needs to determine the resource element occupied by the CSI-RS transmission.

0623S<b>1303</b>: The user equipment skips receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0624After determining the resource element occupied by the CSI-RS transmission, the user equipment skips receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0625S<b>1304</b>: The user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on a resource element occupied by the received first information that is repeatedly transmitted multiple times.

0626The first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0627After determining the subframe for the enhanced transmission of the first information, the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on the resource element occupied by the received first information that is repeatedly transmitted multiple times.

0628It should be noted that, according to different types of the first information, the user equipment receives, at different frequencies in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times. When the first information is an MIB, a quantity of times of repeated receiving of the MIB in at least one radio frame is greater than one time; or when the first information is an SIB 1, a quantity of times of repeated receiving of the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeated receiving of the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0629It should be noted that, according to the information transmission method provided in this embodiment of the present disclosure, after the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, the user equipment can further combine the received first information that is repeatedly transmitted multiple times, and detect the combined first information.

0630According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information repeatedly transmitted multiple times is received in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 10

0631This embodiment of the present disclosure provides another information transmission method. As shown in <figref idref="DRAWINGS">FIG. 14</figref>, the method includes:

0632S<b>1401</b>: User equipment determines a subframe for enhanced transmission of first information.

0633This embodiment of the present disclosure provides an information transmission method, which can avoid a collision between CSI-RS transmission and enhanced transmission of first information, improving transmission reliability of the first information.

0634First, the user equipment determines the subframe for the enhanced transmission of the first information.

0635S<b>1402</b>: The user equipment determines a subframe for CSI-RS transmission.

0636After the user equipment determines the subframe for the enhanced transmission of the first information, the user equipment needs to determine the subframe for the CSI-RS transmission.

0637S<b>1403</b>: The user equipment skips receiving the first information in the subframe for the CSI-RS transmission.

0638After determining the subframe for the CSI-RS transmission, the user equipment skips receiving the first information in the subframe for the CSI-RS transmission, thereby avoiding a collision between the CSI-RS transmission and the enhanced transmission of the first information.

0639S<b>1404</b>: The user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on a resource element occupied by the received first information that is repeatedly transmitted multiple times.

0640The first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0641After determining the subframe for the enhanced transmission of the first information, the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skips the CSI-RS transmission on the resource element occupied by the received first information.

0642It should be noted that, according to different types of the first information, the user equipment receives, at different frequencies in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times. When the first information is an MIB, a quantity of times of repeated receiving of the MIB in at least one radio frame is greater than one time; or when the first information is an SIB 1, a quantity of times of repeated receiving of the SIB 1 in at least two consecutive radio frames is greater than one time; or when the first information is system information, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information except an MIB and an SIB 1, a quantity of times of repeated receiving of the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0643It should be noted that, according to the information transmission method provided in this embodiment of the present disclosure, after the user equipment receives, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, the user equipment can further combine the received first information that is repeatedly transmitted multiple times, and detect the combined first information.

0644According to the information transmission method provided in this embodiment of the present disclosure, a subframe for enhanced transmission of first information is determined, and the first information repeatedly transmitted multiple times is received in the determined subframe for the enhanced transmission of the first information, and CSI-RS transmission is skipped on a resource element occupied by the first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 11

0645This embodiment of the present disclosure provides an information transmission apparatus <b>1</b>. As shown in <figref idref="DRAWINGS">FIG. 15</figref>, the apparatus includes:

0646a determining module <b>10</b>, configured to determine a subframe for enhanced transmission of first information; and

0647a transmission module <b>11</b>, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where

0648the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0649Further, for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0650for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0651Further, for the FDD system,

0652the subframe for the enhanced transmission of the first information includes the subframe 9; or

0653the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0654for the TDD system,

0655the subframe for the enhanced transmission of the first information includes the subframe 0; or

0656the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0657Further, the subframe for the enhanced transmission of the first information further includes:

0658for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0659for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0660Further, for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0661for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0662Further, the determining module <b>10</b> is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0663the transmission module <b>11</b> is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0664Further, the determining module <b>10</b> is further configured to determine a resource element occupied by the CSI-RS transmission; and

0665the transmission module <b>11</b> is further configured to skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0666Further, the determining module <b>10</b> is further configured to determine a subframe for the CSI-RS transmission; and

0667the transmission module <b>11</b> is further configured to skip transmitting the first information in the subframe for the CSI-RS transmission.

0668Further, the determining module <b>10</b> is configured to determine an available CSI-RS configuration according to a preset rule, or set an available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0669the determining module <b>10</b> is configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission; and

0670as shown in <figref idref="DRAWINGS">FIG. 16</figref>, the information transmission apparatus further includes:

0671a notification module <b>12</b>, configured to notify user equipment of the available CSI-RS configuration by using signaling.

0672Further, the determining module <b>10</b> is configured to determine an available CSI-RS subframe configuration according to a preset rule, or set an available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0673the determining module <b>10</b> is configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration; and

0674the notification module <b>12</b> is further configured to notify user equipment of the available CSI-RS subframe configuration by using signaling.

0675Further, the signaling includes:

0676an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0677The information transmission apparatus provided in this embodiment of the present disclosure includes a determining module, configured to determine a subframe for enhanced transmission of first information, and a transmission module, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 12

0678This embodiment of the present disclosure provides another information transmission apparatus <b>2</b>. As shown in <figref idref="DRAWINGS">FIG. 17</figref>, the apparatus includes:

0679a determining unit <b>20</b>, configured to determine a subframe for enhanced transmission of first information; and

0680a receiving unit <b>21</b>, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where

0681the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0682Further, for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0683for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0684Further, for the FDD system,

0685the subframe for the enhanced transmission of the first information includes the subframe 9; or

0686the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0687for the TDD system,

0688the subframe for the enhanced transmission of the first information includes the subframe 0; or

0689the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0690Further, the subframe for the enhanced transmission of the first information further includes:

0691for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0692for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0693Further, for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0694for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0695Further, the determining unit <b>20</b> is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0696the receiving unit <b>21</b> is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0697Further, the determining unit <b>20</b> is further configured to determine a resource element occupied by the CSI-RS transmission; and

0698the receiving unit <b>21</b> is further configured to skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0699Further, the determining unit <b>20</b> is further configured to determine a subframe for the CSI-RS transmission; and

0700the receiving unit <b>21</b> is further configured to skip receiving the first information in the subframe for the CSI-RS transmission.

0701Further, the determining unit <b>20</b> is configured to determine an available CSI-RS configuration according to a preset rule, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0702the receiving unit <b>21</b> is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration; and

0703the determining unit <b>20</b> is further configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0704Further, the determining unit <b>20</b> is configured to determine an available CSI-RS subframe configuration according to a preset rule, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0705the receiving unit <b>21</b> is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration; and

0706the determining unit <b>20</b> is further configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0707Further, the signaling includes:

0708an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0709The information transmission apparatus provided in this embodiment of the present disclosure includes a determining unit, configured to determine a subframe for enhanced transmission of first information, and a receiving unit, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 13

0710This embodiment of the present disclosure provides a network device <b>3</b>. As shown in <figref idref="DRAWINGS">FIG. 18</figref>, the device includes:

0711a processor <b>30</b>, configured to determine a subframe for enhanced transmission of first information; and

0712a transmitter <b>31</b>, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where

0713the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0714Further, for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0715for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0716Further, for the FDD system,

0717the subframe for the enhanced transmission of the first information includes the subframe 9; or

0718the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0719for the TDD system,

0720the subframe for the enhanced transmission of the first information includes the subframe 0; or

0721the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0722Further, the subframe for the enhanced transmission of the first information further includes:

0723for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0724for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0725Further, for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0726for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0727Further, the processor <b>30</b> is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0728the transmitter <b>31</b> is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0729Further, the processor <b>30</b> is further configured to determine a resource element occupied by the CSI-RS transmission; and

0730the transmitter <b>31</b> is further configured to skip transmitting the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0731Further, the processor <b>30</b> is further configured to determine a subframe for the CSI-RS transmission; and

0732the transmitter <b>31</b> is further configured to skip transmitting the first information in the subframe for the CSI-RS transmission.

0733Further, the processor <b>30</b> is configured to determine an available CSI-RS configuration according to a preset rule, or set an available CSI-RS configuration, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0734the processor <b>30</b> is configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission; and

0735the transmitter <b>31</b> is further configured to notify user equipment of the available CSI-RS configuration by using signaling.

0736Further, the processor <b>30</b> is configured to determine an available CSI-RS subframe configuration according to a preset rule, or set an available CSI-RS subframe configuration, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0737the processor <b>30</b> is further configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration; and

0738the transmitter <b>31</b> is further configured to notify user equipment of the available CSI-RS subframe configuration by using signaling.

0739Further, the signaling includes:

0740an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0741The network device provided in this embodiment of the present disclosure includes a processor, configured to determine a subframe for enhanced transmission of first information, and a transmitter, configured to repeatedly transmit the first information multiple times in the determined subframe for the enhanced transmission of the first information, and skip CSI-RS transmission of a resource element occupied by the enhanced transmission of the first information, where the first information is an MIB, and a quantity of times of repeatedly transmitting the MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of repeatedly transmitting the SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of repeatedly transmitting the first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 14

0742This embodiment of the present disclosure provides an information transmission device <b>4</b>. As shown in <figref idref="DRAWINGS">FIG. 19</figref>, the device includes:

0743a processor <b>40</b>, configured to determine a subframe for enhanced transmission of first information; and

0744a receiver <b>41</b>, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where

0745the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times.

0746Further, for an FDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0747for a TDD system, the subframe for the enhanced transmission of the first information includes one or more subframes of the subframe 0, a subframe 1, the subframe 5, and a subframe 6.

0748Further, for the FDD system,

0749the subframe for the enhanced transmission of the first information includes the subframe 9; or

0750the subframe for the enhanced transmission of the first information includes the subframe 4 and the subframe 9; and

0751for the TDD system,

0752the subframe for the enhanced transmission of the first information includes the subframe 0; or

0753the subframe for the enhanced transmission of the first information includes the subframe 0 and the subframe 5.

0754Further, the subframe for the enhanced transmission of the first information further includes:

0755for the FDD system, the subframe for the enhanced transmission of the first information further includes the subframe 0 and/or the subframe 5; and

0756for the TDD system, the subframe for the enhanced transmission of the first information further includes the subframe 1 and/or the subframe 6.

0757Further, for the FDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 4, the subframe 5, and the subframe 9; and

0758for the TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0, the subframe 1, the subframe 5, and the subframe 6.

0759Further, the processor <b>40</b> is further configured to determine a resource element occupied by the CSI-RS transmission and a subframe for the CSI-RS transmission; and

0760the receiver <b>41</b> is further configured to: if the subframe for the CSI-RS transmission collides with the subframe for the enhanced transmission of the first information, skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe in which the enhanced transmission of the first information collides with the CSI-RS transmission.

0761Further, the processor <b>40</b> is further configured to determine a resource element occupied by the CSI-RS transmission; and

0762the receiver <b>41</b> is further configured to skip receiving the first information on the resource element occupied by the CSI-RS transmission in the determined subframe for the enhanced transmission of the first information.

0763Further, the processor <b>40</b> is further configured to determine a subframe for the CSI-RS transmission; and

0764the receiver <b>41</b> is further configured to skip receiving the first information in the subframe for the CSI-RS transmission.

0765Further, the processor <b>40</b> is configured to determine an available CSI-RS configuration according to a preset rule, where the available CSI-RS configuration includes one or more CSI-RS configurations;

0766the receiver <b>41</b> is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS configuration; and

0767the processor <b>40</b> is further configured to determine, according to the available CSI-RS configuration, the resource element occupied by the CSI-RS transmission.

0768Further, the processor <b>40</b> is configured to determine an available CSI-RS subframe configuration according to a preset rule, where the available CSI-RS subframe configuration includes one or more CSI-RS subframe configurations;

0769the receiver <b>41</b> is further configured to receive signaling from a base station, where the signaling is used for notifying the available CSI-RS subframe configuration; and

0770the processor <b>40</b> is further configured to determine the subframe for the CSI-RS transmission according to the available CSI-RS subframe configuration.

0771Further, the signaling includes:

0772an MIB, a system information block SIB, Radio Resource Control RRC common signaling, RRC dedicated signaling, Media Access Control MAC signaling, or physical layer signaling.

0773The information transmission device provided in this embodiment of the present disclosure includes a processor, configured to determine a subframe for enhanced transmission of first information, and a receiver, configured to receive, in the determined subframe for the enhanced transmission of the first information, the first information that is repeatedly transmitted multiple times, and skip CSI-RS transmission of a resource element occupied by the received first information that is repeatedly transmitted multiple times, where the first information is an MIB, and a quantity of times of receiving the repeatedly transmitted MIB in at least one radio frame is greater than one time; or the first information is an SIB 1, and a quantity of times of receiving the repeatedly transmitted SIB 1 in at least two consecutive radio frames is greater than one time; or the first information is other system information except an MIB and an SIB 1, unicast data, a paging message, a random access response RAR, a random access contention resolution message, or control information, and a quantity of times of receiving the repeatedly transmitted first information in the determined subframe for the enhanced transmission of the first information is at least two times. According to the solution, a collision between the CSI-RS transmission and the enhanced transmission of the first information can be avoided, improving transmission reliability of the first information.

Embodiment 15

0774This embodiment of the present disclosure further provides an information transmission system, including the base station having any feature described above and the user equipment having any feature described above.

0775The information transmission system provided in this embodiment of the present disclosure includes the base station having any feature described above and the user equipment having any feature described above. According to the solution, a collision between CSI-RS transmission and enhanced transmission of first information can be avoided, improving transmission reliability of the first information.

Embodiment 16

0776This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 20</figref>, the method includes:

0777S<b>1501</b>: A base station determines a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0778In the prior art, in the case of coverage enhancement, UE that requires coverage enhancement cannot learn a TDD configuration and an MBSFN subframe configuration before receiving an SIB 1 and an SIB 2. Therefore, when enhanced transmission is performed on first information, a subframe used in the enhanced transmission cannot be determined, thereby lowering transmission reliability of the first information. This embodiment of the present disclosure provides an information transmission method, which can determine a subframe used in enhanced transmission of first information, improving transmission reliability of the first information.

0779First, the base station determines the subframe for the enhanced transmission of the first information.

0780The first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0781It should be noted that, the SIB including the TDD configuration is not limited to only the SIB 1, and may also be another SIB x including the TDD configuration; similarly, the SIB including the MBSFN subframe configuration is not limited to only the SIB 2, either, and may also be another SIB y including the TDD configuration, where x and y both are positive integers. Generally, a value of x of the SIB x including the TDD configuration is not equal to a value of y of the SIB y including the MBSFN subframe configuration, but particularly, the value of x may also be equal to the value of y, which is not limited in the present disclosure.

0782It should be further noted that, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following, and there are at least one subframe for the enhanced transmission of the first information:

0783the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0784the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0785the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0786Particularly, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0787for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0788Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0789The subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0790the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0791the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0792the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0793the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0794S<b>1502</b>: The base station performs the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0795After determining the subframe for the enhanced transmission of the first information, the base station performs the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0796It should be noted that, when the base station performs the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information, according to different types of the first information, specific manners of transmitting the first information are different. If the first information is a master information block, the base station performs the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, the base station performs the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, the base station performs the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0797It should be additionally noted that, for the enhanced transmission of the first information provided in this embodiment of the present disclosure, the mentioned quantity of times of the enhanced transmission includes initial transmission of the first information. For example, the enhanced transmission being 1 indicates that the first information is transmitted only one time, that is, there is no additional repeatedly transmitting the first information; and the enhanced transmission being 2 indicates that the first information is transmitted two times, that is, there is additional one time of repeatedly transmitting the first information.

0798This embodiment of the present disclosure provides an information transmission method, where a subframe for enhanced transmission of first information is determined, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration, and the enhanced transmission of the first information is performed in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 17

0799This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 21</figref>, the method includes:

0800S<b>1601</b>: A base station determines a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0801This embodiment of the present disclosure provides an information transmission method, which can determine a subframe used in enhanced transmission of first information, improving transmission reliability of the first information.

0802First, the base station determines the subframe for the enhanced transmission of the first information. The first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0803It should be noted that, the SIB including the TDD configuration is not limited to only the SIB 1, and may also be another SIB x including the TDD configuration; similarly, the SIB including the MBSFN subframe configuration is not limited to only the SIB 2, either, and may also be another SIB y including the TDD configuration, where x and y both are positive integers. Generally, a value of x of the SIB x including the TDD configuration is not equal to a value of y of the SIB y including the MBSFN subframe configuration, but particularly, the value of x may also be equal to the value of y, which is not limited in the present disclosure.

0804It should be further noted that, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0805the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0806the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0807the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0808Particularly, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0809for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0810Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0811In an existing LTE or LTE-A system, time-domain resources are divided as radio frames, and the radio frames are numbered 0 to 1023. One radio frame includes 10 subframes, a time length of one subframe is 1 ms, and subframes in each radio frame are numbered 0 to 9.

0812For the FDD system or the Half FDD system, it can be determined that the subframe 0, the subframe 4, the subframe 5, and the subframe 9 are surely not MBSFN subframes; therefore, the subframe for the enhanced transmission of the first information is surely one or more of the subframe 0, the subframe 4, the subframe 5, and the subframe 9. For the TDD system, the subframe 0, the subframe 1, the subframe 5, and the subframe 6 are surely not MBSFN subframes, but the subframe 1 is surely a special subframe and the subframe 6 may be a special subframe; therefore, the subframe for the enhanced transmission of the first information is surely the subframe 0 and/or the subframe 5 and may further include the subframe 6.

0813Exemplarily, for the TDD system, if the subframe 0, the subframe 1, a subframe 2, and the subframe 6 are subframes in uplink and downlink configurations of the TDD system, the subframe 6 is also a special subframe. Therefore, the subframe for the enhanced transmission of the first information can only be the subframe 0 and/or the subframe 5. If a subframe 3, the subframe 4, and the subframe 5 are subframes in uplink and downlink configurations of the TDD system, and the subframe 6 is a subframe in only the downlink configuration of the TDD system, the subframe 6 is not a special subframe. Therefore, the subframe for the enhanced transmission of the first information may be one or more of the subframe 0, the subframe 5, and the subframe 6.

0814The subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0815the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0816the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0817the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0818the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0819S<b>1602</b>: The base station determines a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information.

0820RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0821After the base station determines the subframe for the enhanced transmission of the first information, a redundancy version RV of the first information during the enhanced transmission of the first information varies according to a quantity of times of the enhanced transmission of the first information, so that a format stipulated by the redundancy version RV is used for the first information, and the enhanced transmission of the first information is performed in the determined subframe for the enhanced transmission of the first information.

0822S<b>1603</b>: The base station performs the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0823step S<b>1603</b> of performing, by the base station, the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information may include steps S<b>1603</b><i>a </i>to S<b>1603</b><i>c: </i>

0824S<b>1603</b><i>a</i>: If the first information is a master information block, the base station performs the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time.

0825S<b>1603</b><i>b</i>: If the first information is an SIB including a TDD configuration, the base station performs the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time.

0826S<b>1603</b><i>c</i>: If the first information is an SIB including an MBSFN subframe configuration, the base station performs the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0827It should be noted that, to avoid a collision between the enhanced transmission of the first information and enhanced transmission of a paging message and/or a random access response message, when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0828when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0829It should be further noted that, according to types of the first information, a priority relationship exists between the enhanced transmission of the first information and enhanced transmission of other information:

0830if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0831if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration, where

0832the preset first time offset and the preset second time offset both are constant time offset values, and the preset first time offset may be equal to the preset second time offset, or the preset first time offset may be not equal to the preset second time offset, which is not limited in the present disclosure.

0833This embodiment of the present disclosure provides an information transmission method, where a subframe for enhanced transmission of first information is determined, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration, and the enhanced transmission of the first information is performed in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 18

0834This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 22</figref>, the method includes:

0835S<b>1701</b>: User equipment determines a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0836This embodiment of the present disclosure provides an information transmission method, which can determine a subframe used in enhanced transmission of first information, improving transmission reliability of the first information.

0837First, the user equipment determines the subframe for the enhanced transmission of the first information.

0838The first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0839It should be noted that, the SIB including the TDD configuration is not limited to only the SIB 1, and may also be another SIB x including the TDD configuration; similarly, the SIB including the MBSFN subframe configuration is not limited to only the SIB 2, either, and may also be another SIB y including the TDD configuration, where x and y both are positive integers. Generally, a value of x of the SIB x including the TDD configuration is not equal to a value of y of the SIB y including the MBSFN subframe configuration, but particularly, the value of x may also be equal to the value of y, which is not limited in the present disclosure.

0840It should be further noted that, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following, and there are at least one subframe for the enhanced transmission of the first information:

0841the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0842the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0843the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0844Particularly, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0845for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0846Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0847The subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0848the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0849the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0850the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0851the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0852S<b>1702</b>: The user equipment receives the first information in the determined subframe for the enhanced transmission of the first information.

0853After determining the subframe for the enhanced transmission of the first information, the user equipment receives the first information in the determined subframe for the enhanced transmission of the first information.

0854It should be noted that, when the user equipment receives the first information in the determined subframe for the enhanced transmission of the first information, according to different types of the first information, specific manners of receiving the first information are different. If the first information is a master information block, the user equipment receives the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, the user equipment receives the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, the user equipment receives the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0855It should be additionally noted that, for the enhanced transmission of the first information provided in this embodiment of the present disclosure, the mentioned quantity of times of the enhanced transmission includes initial transmission of the first information. For example, the enhanced transmission being 1 indicates that the first information is transmitted only one time, that is, there is no additional repeatedly transmitting the first information; and the enhanced transmission being 2 indicates that the first information is transmitted two times, that is, there is additional one time of repeatedly transmitting the first information.

0856This embodiment of the present disclosure provides an information transmission method, where a subframe for enhanced transmission of first information is determined, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration, and the first information is received in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 19

0857This embodiment of the present disclosure provides an information transmission method. As shown in <figref idref="DRAWINGS">FIG. 23</figref>, the method includes:

0858S<b>1801</b>: User equipment determines a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0859This embodiment of the present disclosure provides an information transmission method, which can determine a subframe used in enhanced transmission of first information, improving transmission reliability of the first information.

0860First, the user equipment determines the subframe for the enhanced transmission of the first information. The first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration.

0861It should be noted that, the SIB including the TDD configuration is not limited to only the SIB 1, and may also be another SIB x including the TDD configuration; similarly, the SIB including the MBSFN subframe configuration is not limited to only the SIB 2, either, and may also be another SIB y including the TDD configuration, where x and y both are positive integers. Generally, a value of x of the SIB x including the TDD configuration is not equal to a value of y of the SIB y including the MBSFN subframe configuration, but particularly, the value of x may also be equal to the value of y, which is not limited in the present disclosure.

0862It should be further noted that, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0863the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0864the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0865the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0866Particularly, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0867for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0868Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0869In an existing LTE or LTE-A system, time-domain resources are divided as radio frames, and the radio frames are numbered 0 to 1023. One radio frame includes 10 subframes, a time length of one subframe is 1 ms, and subframes in each radio frame are numbered 0 to 9.

0870For the FDD system or the Half FDD system, it can be determined that the subframe 0, the subframe 4, the subframe 5, and the subframe 9 are surely not MBSFN subframes; therefore, the subframe for the enhanced transmission of the first information is surely one or more of the subframe 0, the subframe 4, the subframe 5, and the subframe 9. For the TDD system, the subframe 0, the subframe 1, the subframe 5, and the subframe 6 are surely not MBSFN subframes, but the subframe 1 is surely a special subframe and the subframe 6 may be a special subframe; therefore, the subframe for the enhanced transmission of the first information is surely the subframe 0 and/or the subframe 5 and may further include the subframe 6.

0871Exemplarily, for the TDD system, if the subframe 0, the subframe 1, a subframe 2, and the subframe 6 are subframes in uplink and downlink configurations of the TDD system, the subframe 6 is also a special subframe. Therefore, the subframe for the enhanced transmission of the first information can only be the subframe 0 and/or the subframe 5. If a subframe 3, the subframe 4, and the subframe 5 are subframes in uplink and downlink configurations of the TDD system, and the subframe 6 is a subframe in only the downlink configuration of the TDD system, the subframe 6 is not a special subframe. Therefore, the subframe for the enhanced transmission of the first information may be one or more of the subframe 0, the subframe 5, and the subframe 6.

0872The subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0873the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0874the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0875the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0876the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0877S<b>1802</b>: The user equipment determines a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information.

0878RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0879After the user equipment determines the subframe for the enhanced transmission of the first information, a redundancy version RV of the first information during the enhanced transmission of the first information varies according to a quantity of times of the enhanced transmission of the first information, so that a format stipulated by the redundancy version RV is used for the first information, and the first information is received in the determined subframe for the enhanced transmission of the first information.

0880S<b>1803</b>: The user equipment receives the first information in the determined subframe for the enhanced transmission of the first information.

0881step S<b>1803</b> of receiving, by the user equipment, the first information in the determined subframe for the enhanced transmission of the first information may include steps S<b>1803</b><i>a </i>to S<b>1803</b><i>c: </i>

0882S<b>1803</b><i>a</i>: If the first information is a master information block, the user equipment receives the master information block in at least one radio frame a quantity of times that is greater than one time.

0883S<b>1803</b><i>b</i>: If the first information is an SIB including a TDD configuration, the user equipment receives the SIB in at least two consecutive radio frames a quantity of times that is greater than one time.

0884S<b>1803</b><i>c</i>: If the first information is an SIB including an MBSFN subframe configuration, the user equipment receives the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0885It should be noted that, to avoid a collision between the enhanced transmission of the first information and enhanced transmission of a paging message and/or a random access response message, when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0886when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0887It should be further noted that, according to types of the first information, a priority relationship exists between the enhanced transmission of the first information and enhanced transmission of other information:

0888if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0889if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration, where

0890the preset first time offset and the preset second time offset both are constant time offset values, and the preset first time offset may be equal to the preset second time offset, or the preset first time offset may be not equal to the preset second time offset, which is not limited in the present disclosure.

0891This embodiment of the present disclosure provides an information transmission method, where a subframe for enhanced transmission of first information is determined, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration, and the first information is received in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 20

0892This embodiment of the present disclosure provides an information transmission apparatus. As shown in <figref idref="DRAWINGS">FIG. 24</figref>, the information transmission apparatus includes a determining module <b>50</b> and a sending module <b>51</b>, where

0893the determining module <b>50</b> is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and

0894the sending module <b>51</b> is configured to: after the determining module <b>50</b> determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0895Further, the sending module <b>51</b> is configured to: if the first information is a master information block, perform the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, perform the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, perform the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0896Further, for a frequency division duplex FDD system or a half frequency division duplex Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0897for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0898Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0899Further, the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0900the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0901the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0902the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0903the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0904Further, when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0905when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0906Further, if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0907if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration, where

0908Further, the determining module <b>50</b> is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0909RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0910Further, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0911the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0912the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0913the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0914This embodiment of the present disclosure provides an information transmission apparatus, including a determining module and a sending module, where the determining module is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and the sending module is configured to: after the determining module determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 21

0915This embodiment of the present disclosure provides another information transmission apparatus. As shown in <figref idref="DRAWINGS">FIG. 25</figref>, the information transmission apparatus includes a determining module <b>60</b> and a receiving module <b>61</b>, where

0916the determining module <b>60</b> is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and

0917the receiving module <b>61</b> is configured to: after the determining module <b>60</b> determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information.

0918Further, the receiving module <b>61</b> is configured to: if the first information is a master information block, receive the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, receive the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, receive the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0919Further, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0920for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0921Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0922Further, the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0923the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0924the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0925the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0926the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0927Further, when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0928when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0929Further, if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0930if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration.

0931Further, the determining module <b>60</b> is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0932RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0933Further, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0934the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0935the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0936the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0937This embodiment of the present disclosure provides an information transmission apparatus, including a determining module and a receiving module, where the determining module is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and the receiving module is configured to: after the determining module determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 22

0938This embodiment of the present disclosure provides a network device. As shown in <figref idref="DRAWINGS">FIG. 26</figref>, the network device includes a processor <b>70</b> and a transmitter <b>71</b>, where

0939the processor <b>70</b> is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and

0940the transmitter <b>71</b> is configured to: after the processor <b>70</b> determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information.

0941Further, the transmitter <b>71</b> is configured to: if the first information is a master information block, perform the enhanced transmission of the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, perform the enhanced transmission of the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, perform the enhanced transmission of the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0942Further, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0943for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0944Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0945Further, the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0946the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0947the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0948the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0949the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0950Further, when the enhanced transmission of the first information is scheduled based on a control channel, additional enhanced transmission of a paging message and/or a random access response message is not performed in the determined subframe for the enhanced transmission of the first information; and

0951when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the additional enhanced transmission of the paging message and/or the random access response message is not performed in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0952Further, if the first information is an SIB including a TDD configuration, the enhanced transmission of the first information is after enhanced transmission of a master information block, and a preset first time offset exists between the enhanced transmission of the first information and the enhanced transmission of the master information block; and

0953if the first information is an SIB including an MBSFN subframe configuration, the enhanced transmission of the first information is after enhanced transmission of an SIB including a TDD configuration, and a preset second time offset exists between the enhanced transmission of the first information and the enhanced transmission of the SIB including the TDD configuration.

0954Further, the processor <b>70</b> is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0955RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0956Further, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0957the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0958the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0959the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0960This embodiment of the present disclosure provides a network device, including a processor and a transmitter, where the processor is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is a system information block SIB including a time division duplex TDD configuration, or the first information is an SIB including a multicast-broadcast single-frequency network MBSFN subframe configuration; and the transmitter is configured to: after the processor determines the subframe for the enhanced transmission of the first information, perform the enhanced transmission of the first information in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 23

0961This embodiment of the present disclosure provides an information transmission device. As shown in <figref idref="DRAWINGS">FIG. 27</figref>, the information transmission device includes a processor <b>80</b> and a receiver <b>81</b>, where

0962the processor <b>80</b> is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and

0963the receiver <b>81</b> is configured to: after the processor <b>80</b> determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information.

0964Further, the receiver <b>81</b> is configured to: if the first information is a master information block, receive the master information block in at least one radio frame a quantity of times that is greater than one time; if the first information is an SIB including a TDD configuration, receive the SIB in at least two consecutive radio frames a quantity of times that is greater than one time; or if the first information is an SIB including an MBSFN subframe configuration, receive the SIB in the determined subframe for the enhanced transmission of the first information a quantity of times that is at least two times.

0965Further, for an FDD system or a Half FDD system, the subframe for the enhanced transmission of the first information includes one or more of a subframe 0, a subframe 4, a subframe 5, and a subframe 9; and

0966for a TDD system, the subframe for the enhanced transmission of the first information includes the subframe 0 and/or the subframe 5.

0967Further, for the TDD system, if the first information is an SIB including an MBSFN subframe configuration and a subframe 6 is not a special subframe, the subframe for the enhanced transmission of the first information further includes the subframe 6.

0968Further, the subframe 0 is a subframe 0 in each radio frame in at least one radio frame, or a subframe 0 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 0 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0969the subframe 4 is a subframe 4 in each radio frame in at least one radio frame, or a subframe 4 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 4 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0970the subframe 5 is a subframe 5 in each radio frame in at least one radio frame, or a subframe 5 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 5 in each odd-numbered radio frame in at least one odd-numbered radio frame;

0971the subframe 6 is a subframe 6 in each radio frame in at least one radio frame, or a subframe 6 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 6 in each odd-numbered radio frame in at least one odd-numbered radio frame; and

0972the subframe 9 is a subframe 9 in each radio frame in at least one radio frame, or a subframe 9 in each even-numbered radio frame in at least one even-numbered radio frame, or a subframe 9 in each odd-numbered radio frame in at least one odd-numbered radio frame.

0973Further, when the enhanced transmission of the first information is scheduled based on a control channel, a paging message and/or a random access response message on which additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information; and

0974when the enhanced transmission of the first information is not scheduled based on a control channel, on a small-bandwidth carrier, the paging message and/or the random access response message on which the additional enhanced transmission is performed is not received in the determined subframe for the enhanced transmission of the first information, where the small-bandwidth carrier includes at least a carrier of 1.4 MHz and/or a carrier of 3 MHz.

0975Further, if the first information is an SIB including a TDD configuration, the receiving of the first information is after receiving of a master information block, and a preset first time offset exists between the receiving of the first information and the receiving of the master information block; and

0976if the first information is an SIB including an MBSFN subframe configuration, the receiving of the first information is after receiving of an SIB including a TDD configuration, and a preset second time offset exists between the receiving of the first information and the receiving of the SIB including the TDD configuration.

0977Further, the processor <b>80</b> is further configured to determine a redundancy version RV, in a (rep_index+1)^thtime of enhanced transmission, of the first information, where

0978RV index=ceil(3/2*{rep_index mod 4})mod 4, ceil(x) is a round-up function, rep_index is a number of a quantity of times of the enhanced transmission of the first information, and mod is a modulo operation; or the RV is determined in an order of 0, 2, 3, and 1 according to an index of a quantity of times of the enhanced transmission.

0979Further, the subframe for the enhanced transmission of the first information includes any one of or a combination of the following:

0980the subframe for the enhanced transmission of the first information is a subframe in an enhanced transmission opportunity of the first information or a subframe in an enhanced transmission bundle of the first information;

0981the subframe for the enhanced transmission of the first information is a subframe in at least one radio frame; and

0982the subframe for the enhanced transmission of the first information is a subframe in at least one system information window.

0983This embodiment of the present disclosure provides an information transmission device, including a processor and a receiver, where the processor is configured to determine a subframe for enhanced transmission of first information, where the first information is a master information block, or the first information is an SIB including a TDD configuration, or the first information is an SIB including an MBSFN subframe configuration; and the receiver is configured to: after the processor determines the subframe for the enhanced transmission of the first information, receive the first information in the determined subframe for the enhanced transmission of the first information. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

Embodiment 24

0984This embodiment of the present disclosure provides an information transmission system, including the network device having any feature described above and the information transmission device having any feature described above.

0985The information transmission system provided in this embodiment of the present disclosure includes the network device having any feature described above and the information transmission device having any feature described above. According to the solution, the subframe used in the enhanced transmission of the first information can be determined, improving transmission reliability of the first information.

0986It may be clearly understood by a person skilled in the art that, for the purpose of convenient and brief description, division of the foregoing function modules is taken as an example for illustration. In actual application, the foregoing functions can be allocated to different function modules and implemented according to a requirement, that is, an inner structure of an apparatus is divided into different function modules to implement all or some of the functions described above. For a detailed working process of the foregoing system, apparatus, and unit, reference may be made to a corresponding process in the foregoing method embodiments, and details are not described herein again.

0987In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the described apparatus embodiment is merely exemplary. For example, the module or unit division is merely logical function division and may be other division in actual implementation. For example, a plurality of units or components may be combined or integrated into another system, or some features may be ignored or not performed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections may be implemented through some interfaces. The indirect couplings or communication connections between the apparatuses or units may be implemented in electronic, mechanical, or other forms.

0988The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

0989In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each of the units may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in a form of hardware, or may be implemented in a form of a software functional unit.

0990When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, the integrated unit may be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the present disclosure essentially, or the part contributing to the prior art, or all or a part of the technical solutions may be implemented in the form of a software product. The software product is stored in a storage medium and includes several instructions for instructing a computer device (which may be a personal computer, a server, or a network device) or a processor to perform all or a part of the steps of the methods described in the embodiments of the present disclosure. The foregoing storage medium includes: any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc.

0991A person of ordinary skill in the art may understand that all or some of the steps of the method embodiments may be implemented by a program instructing relevant hardware. The program may be stored in a computer readable storage medium. When the program runs, the steps of the method embodiments are performed. The foregoing storage medium includes: any medium that can store program code, such as a ROM, a RAM, a magnetic disk, or an optical disc.

0992The foregoing descriptions are merely specific implementation manners of the present disclosure, but are not intended to limit the protection scope of the present disclosure. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in the present disclosure shall fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.