Measurements by a terminal using carrier aggregation

The present invention relates to a mobile station device for measuring different frequencies, a measuring method, and a communication system.

Traditionally, in the standardization organization 3GPP (3rd Generation Partnership Project), Evolved Universal Terrestrial Radio Access (hereinafter referred to as "EUTRA"), which is an evolution of the 3rd generation mobile communication method, and its advanced form, Advanced EUTRA (also called "LTE-Advanced") is under study (Non-Patent Document 1).

In Advanced EUTRA, Carrier Aggregation has been proposed as a technology capable of higher-speed data transmission while maintaining compatibility with EUTRA (for example, Non-Patent Document 2). Carrier Aggregation prepares a receiving device having a receiving bandwidth that exceeds the transmitting bandwidth of the transmitting device, simultaneously transmits data from a plurality of transmitting devices in which different frequency bands are set, and the plurality of receiving devices in the receiving device. It is a technology that improves the data rate by simultaneously receiving the data transmitted from the transmitting device. Hereinafter, the receiving device will be referred to as a mobile station device, and the transmitting device will be referred to as a base station device, but the scope of application of the present invention need not be limited to these devices.

However, in order to effectively perform Carrier Aggregation, it is important not to set a frequency band having poor quality as a reception band. For that purpose, it is necessary to perform inter-Frequency measurement with a mobile station device. As a conventional method for measuring different frequencies, EUTRA employs a method in which a base station device sets a measurement gap in which transmission / reception is not performed (Non-Patent Document 3). On the other hand, for example, in Patent Document 1, the frequency band is divided into a main band and an extended band, and the main band and a plurality of extended bands are simultaneously received without setting a measurement gap, and the obtained quality information is obtained. A method for determining an increase or decrease in the extended band based on this is disclosed.

<p><patcit num="1"><text>International Publication No. WO2006 / 046307 Pamphlet</text></patcit></p>

<p><nplcit num="1"><text>3GPP TR36.913, Requirements for Further Advancements for E-UTRA.V8.0.0 http://www.3gpp.org/ftp/Specs/html-info/36913.htm</text></nplcit><nplcit num="2"><text>Ericsson, R1-082468,3GPP TSG-RAN1 Meeting # 53bis, Warsaw, Poland, June 30-July 4,2008</text></nplcit><nplcit num="3"><text>3GPP TS36.331, Radio Resource Control (RRC); Protocol specification.V8.2.0 http://www.3gpp.org/ftp/Specs/html-info/36331.htm</text></nplcit></p>

<p> However, to date, the timing and measurement method for different frequency measurement of Advanced EUTRA mobile station equipment (hereinafter simply referred to as "mobile station equipment") have not been studied. In particular, Patent Document 1 and Non-Patent Documents 1 to 3 do not disclose any method for measuring different frequencies when the mobile station device can receive a plurality of frequency bands at the same time.</p><p> The present invention has been made in view of such circumstances, and a mobile station device and a measurement capable of realizing appropriate different frequency measurement when the mobile station device can receive a plurality of frequency bands at the same time. It is an object of the present invention to provide a method and a communication system.</p>

<p> (1) In order to achieve the above object, the present invention has taken the following measures. That is, of the present invention<u style="single">The mobile station device is a mobile station device that communicates by carrier aggregation using a plurality of frequency bands set from the base station device, and is a plurality of frequency bands in different frequency measurement for measuring other than the plurality of frequency bands. The carrier aggregation for carrying out either the first different frequency measurement method that does not require a measurement gap or the second different frequency measurement method that requires a measurement gap for the plurality of frequency bands. The mobile station device capability indicating the reception capability is transmitted to the base station device, and the first one is based on the information regarding the measurement gap, the reception quality of one frequency band of the plurality of frequency bands, and the reception capability. It is characterized in that the different frequency measuring method or the second different frequency measuring method is carried out.</u></p><p><u style="single">(2) Further, the mobile station apparatus of the present invention is characterized in that it is used for determining whether or not the reception quality of the one frequency band is below the threshold value notified from the base station apparatus.</u></p><p><u style="single">(3) Further, the measuring method of the present invention is a measuring method of a mobile station device that communicates by carrier aggregation using a plurality of frequency bands set from the base station device, and measures other than the plurality of frequency bands. In the different frequency measurement, either the first different frequency measuring method that does not require a measurement gap for the plurality of frequency bands or the second different frequency measuring method that requires the measurement gap for the plurality of frequency bands. The mobile station device capability indicating the reception capability for the carrier aggregation for carrying out one is transmitted to the base station device, the information regarding the measurement gap, the reception quality of one frequency band of the plurality of frequency bands, and the said. It is characterized in that the first different frequency measuring method or the second different frequency measuring method is carried out based on the receiving ability.</u></p><p><u style="single">(4) Further, the measuring method of the present invention is characterized in that it is used for determining whether or not the reception quality of the one frequency band is below the threshold value notified from the base station apparatus.</u></p><p><u style="single">(5) Further, the base station apparatus of the present invention is a base station apparatus that communicates with a mobile station apparatus by carrier aggregation using a plurality of frequency bands, and the plurality of frequency bands are set and the mobile station apparatus sets the plurality of frequency bands. A threshold regarding the reception quality of one frequency band of the plurality of frequency bands, which is used when performing different frequency measurement for measuring other than the plurality of frequency bands, is transmitted to the mobile station apparatus, and the mobile station apparatus said. In the different frequency measurement for measuring other than the plurality of frequency bands, the first different frequency measurement method that does not require a measurement gap for the plurality of frequency bands or the second method that requires the measurement gap for the plurality of frequency bands. It is characterized in that the mobile station apparatus capability indicating the reception capability for the carrier aggregation for carrying out any one of the different frequency measurement methods is received from the mobile station apparatus.</u></p>

<p> According to the present invention, for example, in the case of the first different frequency measurement method, the mobile station device does not need to generate a measurement gap for different frequency measurement, so that it is possible to improve the throughput of downlink data. It becomes. Further, since the different frequency measurement can be performed regardless of the measurement gap length, the measurement accuracy of the different frequency measurement is improved. As a result, it is not necessary to make unnecessary measurement reports to the base station apparatus, and it is possible to keep the power consumption low. Further, when the mobile station device can perform measurement of different frequencies without a measurement gap, it is not necessary to generate a measurement gap, so scheduling becomes easy.</p>

<figref num="1">It is a block diagram which shows an example of the receiving device of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="2">It is a block diagram which shows an example of the transmission device of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="3">It is a block diagram which shows an example of the receiving apparatus of the base station apparatus in 1st Embodiment of this invention.</figref><figref num="4">It is a block diagram which shows an example of the transmission device of the base station apparatus in 1st Embodiment of this invention.</figref><figref num="5">It is a figure which shows the network configuration in the 1st Embodiment of this invention.</figref><figref num="6">It is a figure which shows the method of the different frequency measurement of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="7">It is a sequence chart which showed the different frequency measurement procedure of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="8">It is another sequence chart which showed the different frequency measurement procedure of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="9">It is a sequence chart which showed the different frequency measurement procedure in the measurement gap of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="10">It is a flowchart which showed the processing procedure of the Aggregation pre-processing of the base station apparatus in 1st Embodiment of this invention.</figref><figref num="11">It is a flowchart which showed the processing procedure of the different frequency measurement processing of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="12">It is a flowchart which showed the processing procedure of the Aggregation determination processing in the base station apparatus of 1st Embodiment of this invention.</figref><figref num="13">It is a flowchart which showed the other processing procedure of the different frequency measurement processing of the mobile station apparatus in 1st Embodiment of this invention.</figref><figref num="14">It is a sequence chart which showed the main carrier setting procedure in 2nd Embodiment of this invention.</figref><figref num="15">It is a flowchart which showed the processing procedure of the main carrier determination processing in the base station apparatus of 2nd Embodiment of this invention.</figref><figref num="16">It is a figure which shows an example of the case where the measurement gap in the 2nd Embodiment of this invention is set to a non-main carrier.</figref><figref num="17">It is a figure which shows an example of the case where the measurement gap in the 2nd Embodiment of this invention is set as a main carrier.</figref><figref num="18">It is a figure which shows the different frequency measurement method using the conventional measurement gap.</figref><figref num="19">It is a figure which shows the state of the increase / decrease of the reception frequency using the conventional Carrier Aggregation.</figref>

Next, an embodiment according to the present invention will be described with reference to the drawings. First, the different frequency measurement using the measurement gap used in EUTRA will be described.

(1) Measurement gap (Non-Patent Document 3) FIG. 18 is a diagram showing an example of different frequency measurement using the measurement gap used in EUTRA. Band1 to Band3 each indicate a downlink frequency band transmitted by the base station apparatus, and the transmission bandwidth thereof is, for example, 20 MHz. Band1 to Band3 may be continuous frequency bands, or may be frequency bands in which all or part of them are discontinuous. For example, when the usable frequency band is the 800 MHz band, the 2.4 GHz band, or the 3.4 GHz band, Band 1 may be transmitted in the 800 MHz band, Band 2 in the 2 GHz band, and Band 3 in the 3.4 GHz band, whichever is 20 MHz. However, the reception bandwidth of the mobile station device is 20 MHz, and it is not possible to receive a plurality of frequency bands at the same time. Therefore, a time is set to guarantee that the base station device does not allocate transmission / reception data called a measurement gap (simply referred to as a gap in the figure), and the mobile station device has a different frequency base station device during the set time. To measure the quality of.

In the example shown in FIG. 18, first, the mobile station device and the base station device communicate using 20 MHz of Band3. Here, when it is determined that different frequency measurement is necessary in Band3, the base station device sets a gap in Band3 at a certain time Time1, and the mobile station device measures different frequencies (Band1 and Band2) during the gap section. .. Further, at another time Time2, the measurement report of a different frequency is performed and the handover process is performed, and the communication frequency is changed to Band2 from Time3. If it is determined that different frequency measurement is necessary in Band2, the base station device sets a gap in Band2 at a certain time Time4, and the mobile station device measures different frequencies (Band1 and Band3) during the gap section. That is, it is not possible to receive a plurality of frequency bands at the same time. The time length of the gap between Time1 to Time4 is arbitrary.

(2) Carrier Aggregation (Non-Patent Document 2) Figure 19 shows Carrier It is a figure which shows an example of Aggregation. The frequency band and transmission bandwidth of the base station apparatus are the same as those in FIG. However, the mobile station device needs to have a reception bandwidth exceeding 20 MHz, and in this example, it can receive up to three frequency bands of 20 MHz at the same time, and the total reception bandwidth is 60 MHz. In the example of FIG. 19, at a certain time Time 5, the mobile station device communicates with the base station device using 20 MHz of Band 3, and at the same time, Band 1 to Band 2 are measured. Also, at another time Time6, Band2 is added to the mobile station device, and Band2 and Band3 are communicating with the base station device using a total of 40 MHz, and Band1 is being measured at the same time. In addition, at another time Time7, Band1 is further added to the mobile station device, and a total of 60 MHz of Band1 to Band3 is used to communicate with the base station device. Also, at another time Time8, Band2 is deleted from the mobile station device, and Band1 and Band3 are communicating with the base station device using a total of 40 MHz, and Band2 is being measured at the same time. In this way, by using Carrier Aggregation, it is possible to significantly improve the data rate without significantly changing the configuration of the base station apparatus. The time length of Time5 to Time8 is variable.

In the case of a communication system that performs Carrier Aggregation as shown in FIG. 19, if the reception bandwidth of the mobile station device is larger than the transmission bandwidth of the base station device and multiple frequency bands can be received at the same time, different frequency measurement is performed. There is no need to set a gap.

(3) Physical channel Physical channels used in EUTRA and Advanced EUTRA include broadcast information channels, uplink data channels, downlink data channels, downlink shared control channels, uplink shared control channels, random access channels, synchronization signals, reference signals, and the like. Physical channels may be added or the channel structure may be changed in EUTRA and Advanced EUTRA in the future, but even if they are changed, they do not affect the description of each embodiment of the present invention. Further, as the reference signal, there are a downlink reference signal and an uplink reference signal. Since the physical channels related to each embodiment of the present invention are broadcast information channels and downlink reference signals, detailed description of other physical channels will be omitted.

The broadcast information channel (BCH) is transmitted for the purpose of notifying control parameters commonly used by mobile station devices in a cell. Furthermore, BCH is classified into P-BCH (Primary BCH) and D-BCH (Dynamic BCH). Since the P-BCH is predetermined to be transmitted at a predetermined cycle in terms of time and frequency, the mobile station device can receive the P-BCH of the cell whose cell ID has been identified. .. On the other hand, with D-BCH, transmission resources are notified on the downlink shared control channel and transmitted using the downlink data channel, and it is also possible to make the transmission resources variable for each cell. D-BCH has at least one global ID (also called global cell ID) that is larger than the cell ID and is assigned to all cells so that it does not overlap, and area information (also called tracking area or tracking area ID). ) And are included.

The downlink reference signal is a pilot signal transmitted with a predetermined power for each cell in principle. Further, the downlink reference signal is a signal that is periodically repeated at a predetermined time interval (for example, one frame), and the mobile station apparatus receives the downlink reference signal at a predetermined time interval and measures the reception quality. It is used to judge the reception quality for each cell. It is also used as a reference signal for demodulating the downlink data transmitted at the same time as the downlink reference signal. As the sequence used for the downlink reference signal, any sequence may be used as long as it is a sequence that can be uniquely identified for each cell. The downlink reference signal may be described as DL-RS (Downlink Reference signal), but its use and meaning are the same.

[First Embodiment] Next, the first embodiment of the present invention will be described below. FIG. 1 is a block diagram showing an example of a receiving device of the mobile station device according to the first embodiment of the present invention. The receiving device 10 includes receiving units 11-1 to 11-n, received signal processing units 12-1 to 12-n, receiving band setting unit 13, received signal processing control unit 14, control message processing unit 15, and measurement processing unit. It consists of 16 and antennas 17-1 to 17-n. Here, the receiving units 11-1 to 11-n and the received signal processing units 12-1 to 12-n show an example equal to the number of antennas (n), but reduce the number of receiving units (receivers). Therefore, a part or a plurality thereof may be shared, or a configuration may be provided in which the number of receivers (receivers) is larger than the number of antennas.

The received signal (transmitted signal from the base station apparatus) is received by the corresponding receiving units 11-1 to 11-n via each antenna 17-1 to 17-n. The number (n) of the receiving units 11-1 to 11-n is equal to the number of frequency bands that the mobile station device can receive at the same time. Reception control information is input to the reception band setting unit 13. The reception control information includes information such as reception timing, multiplexing method, and resource allocation information for each channel in addition to the frequency band. The reception band setting unit 13 sets the frequency band to be received for each reception unit 11-1 to 11-n.

The receiving units 11-1 to 11-n receive signals in the set frequency band according to the reception control information, and output the received signals to the corresponding received signal processing units 12-1 to 12-n. In addition, there may be a receiving unit (as well as an antenna and a receiving processing unit) that are not used at the same time.

The downlink scheduling information is input to the received signal processing control unit 14. The downlink scheduling information includes demodulation information of received signals and the like. The received signal processing control unit 14 sets downlink scheduling information in each received signal processing unit 12-1 to 12-n, and the received signal processing units 12-1 to 12-n demodulate the received signal, respectively. If the received signal after demodulation is a control message (layer 3 message) from the upper layer, it is input to the control message processing unit 15. Further, the result regarding the measurement information is input to the measurement processing unit 16.

Information other than the measurement information processed by the received signal processing units 12-1 to 12-n, such as user traffic data and control data in the lower layer, is input to individual processing blocks as other information. Since these are not related to the present invention, description thereof will be omitted.

The control message processing unit 15 receives a control message from the base station device, performs control processing according to the content of the control message, and notifies the result to the upper layer. The measurement processing unit 16 performs processing such as time averaging and determination of reception quality on the measurement result, and notifies the obtained result to the upper layer.

FIG. 2 is a block diagram showing an example of a transmission device of the mobile station device according to the first embodiment of the present invention. The transmission device 20 includes an uplink message generation unit 21, a transmission signal processing unit 22, a transmission signal processing control unit 23, a channel mapping unit 24, a transmission unit 25, and an antenna 26. Information necessary for generating an uplink message (layer 3 message) to be notified to the base station apparatus at an appropriate timing according to the instruction of the upper layer is input to the uplink message generation unit 21. The uplink message generation unit 21 generates each control message according to the input information and outputs it to the transmission signal processing unit 22. Uplink data and uplink control information are further input to the transmission signal processing unit 22.

Further, the uplink scheduling information is input to the transmission signal processing control unit 23. The uplink scheduling information includes modulation information of the transmission signal and the like. The transmission signal processing control unit 23 sets uplink scheduling information in the transmission signal processing unit 22, and the transmission signal processing unit 22 modulates each input data. The modulated data output from the transmission signal processing unit 22 based on scheduling is physically channel-mapped by the channel mapping unit 24. The physical channel is output from the transmission unit 25 via the antenna 26 according to the transmission control information. The transmission control information includes transmission timing, multiplexing method, resource allocation information, and related information for each physical channel.

Since the other components of the mobile station apparatus are not related to the present embodiment in FIGS. 1 and 2, the description thereof will be omitted.

FIG. 3 is a block diagram showing an example of the configuration of the receiving device of the base station device according to the first embodiment of the present invention. The receiving device 30 includes a receiving unit 31, a received signal processing control unit 32, a received signal processing unit 33, an uplink message processing unit 34, an inter-base station message processing unit 35, and an antenna 36. The received signal (transmitted signal from the mobile station device) is received by the receiving unit 31 via the antenna 36. In addition, the inter-base station reception signal (transmission signal from the base station device) is periodically or eventarily transmitted from the surrounding base station devices using a wired line such as a dedicated line, and is input to the inter-base station message processing unit 35. Will be done.

In the receiving unit 31, the received signal is received based on the base station reception control information. The base station reception control information includes information such as reception timing, multiplexing method, and resource allocation information for each channel for each mobile station device. The reception unit 31 outputs the received signal to the reception signal processing unit 33 according to the base station reception control information. Base station uplink scheduling information is input to the received signal processing control unit 32. The base station uplink scheduling information includes demodulation information of received signals and the like. The reception signal processing control unit 32 sets upstream scheduling information in the reception signal processing unit 33. The reception signal processing unit 33 divides the input signal into each mobile station device, and further appropriately demodulates each channel. When the input signal is an uplink message from the mobile station device, it is output to the uplink message processing unit 34. Signals other than the uplink message processed by the received signal processing unit 33, such as user traffic data, uplink control data, and other control messages, are input to individual processing blocks as other information. Since it is not related to the invention, the description thereof will be omitted.

The uplink message processing unit 34 acquires the control parameters included in each uplink message and outputs them to the upper layer. The inter-base station message processing unit 35 acquires the base station control parameters included in each inter-base station message and outputs them to the upper layer.

FIG. 4 is a block diagram showing an example of a transmission device of the base station device according to the first embodiment of the present invention. The transmission device 40 includes a gap determination unit 41, an aggregation determination unit 42, a downlink message generation unit 43, a transmission signal processing control unit 44, a transmission signal processing unit 45, a channel mapping unit 46, a transmission unit 47, and a message generation unit between base stations. It consists of 48 and 49 antennas. Measurement information is input to the gap determination unit 41 from the upper layer. The measurement information is the information of the measurement result regarding the peripheral base station device reported from the mobile station device. When the gap determination unit 41 determines that gap generation is necessary based on the measurement information, the gap determination unit 41 instructs the downlink message generation unit 43 to generate a downlink message for gap generation. If you don't need a gap, do nothing.

The Aggregation determination unit 42 inputs the mobile station device information and the measurement information, and instructs the downlink message generation unit 43 to generate a downlink message for Carrier Aggregation when Carrier Aggregation is required. The mobile station information includes the capacity of the mobile station device and the amount of downlink buffer of the mobile station device during communication. The downlink message generation unit 43 inputs information necessary for generating a downlink message (layer 3 message) to be notified to the mobile station device at an appropriate timing according to the instruction of the upper layer. The downlink message generation unit 43 generates each control message according to the input information. The downlink message, downlink data, and downlink control information are input to the transmission signal processing unit 45.

Base station downlink scheduling information is input to the transmission signal processing control unit 44. The base station downlink scheduling information includes modulation information of transmission signals and the like. The transmission signal processing control unit 44 sets base station downlink scheduling information in the transmission signal processing unit 45, and the transmission signal processing unit 45 modulates each input data. The modulated data output from the transmission signal processing unit 45 based on scheduling is physically channel-mapped by the channel mapping unit 46.

The physical channel is output from the transmission unit 47 via the antenna 49 according to the transmission control information. The transmission control information includes transmission timing, multiplexing method, resource allocation information, and related information for each physical channel. On the other hand, the inter-base station message is input to the inter-base station message generation unit 48, and is output as an inter-base station transmission signal using a wired line such as a dedicated line. In addition, in FIG. 3 and FIG. 4, other components of the base station apparatus are omitted because they are not related to the present invention.

FIG. 5 is a diagram showing an example of a network configuration suitable for the embodiment of the present invention. The mobile station device 50 can simultaneously communicate data from the base station devices 51-1 to 51-3 in a plurality of frequency bands (Band 1 to Band 3) by Carrier Aggregation. Further, in each frequency band, the base station devices 51-1 to 51-3 are managed by the control stations 52-1 to 52-3. In addition, there is a higher-level control station 53 that manages control stations 52-1 to 52-3. It is also possible to omit the control stations 52-1 to 52-3 and configure the network with only the upper control station 53 and the base station devices 51-1 to 51-3.

FIG. 6 is a diagram showing an example of gap control and different frequency measurement of the mobile station apparatus of the present invention. The different frequency measurement means that the mobile station device measures a frequency band other than the frequency band being received. Band61 to Band64 indicate the downlink frequency band transmitted by the base station equipment, respectively, and the transmission bandwidth is equal to one of the transmission bandwidths of the base station equipment used in EUTRA, for example, 20 MHz. .. Band61 to Band64 may be continuous frequency bands or frequency bands in which all or part of them are discontinuous. Here, if the mobile station device can receive up to three 20 MHz reception bandwidths at the same time (that is, if it has three receivers (receivers) and has a total reception bandwidth of 60 MHz), it must be One frequency band (that is, any one frequency band from Band61 to Band64) cannot be received.

Explaining with reference to FIG. 6, when the mobile station device communicates with the base station device using 20 MHz of Band64 at a certain time Time61, the remaining Band61 to Band63 communicate with the base station device in Band64. Measurements can be made. Also, at another time Time62, when the mobile station device communicates with the base station device using a total of 40 MHz of Band62 to Band64 by Carrier Aggregation, the remaining Band61 and Band62 can be measured. However, at another time Time63, if the mobile station device communicates with the base station device using a total of 60 MHz of Band62 to Band64 by Carrier Aggregation, Band61 cannot be measured. Therefore, in order to measure Band61, it is necessary to generate a gap in a certain frequency band (Band62 in Fig. 6), stop receiving Band62 in the gap section, and measure Band61 in the meantime, as in the example of Time64. is there.

FIG. 7 is a diagram showing an example of a sequence chart showing different frequency measurement that does not require gap control. FIG. 7 shows the procedure for transitioning from a state in which Carrier Aggregation is not performed to a state in which Carrier Aggregation is performed. The mobile station device 70 of this example has a reception bandwidth wider than at least 20 MHz and has the ability to perform Carrier Aggregation, but has not yet performed Carrier Aggregation (Time 61 state in FIG. 6). To do. The network 71 in the figure includes a base station device, a control station, and a higher-level control station.

First, the mobile station apparatus 70 transmits a mobile station apparatus capability report to the network 71 by an uplink message (step S1). The mobile station equipment capability report includes at least receivable frequency band information, whether Carrier Aggregation is possible, and the maximum number of frequency bands that can be received at the same time. It is desirable that the mobile station device capability report be transmitted at least before the mobile station device makes a measurement report in the communicating state, and more preferably during the location registration procedure. Subsequently, when the mobile station device 70 is in the communication state, the cells in the service area and the peripheral cells having the same frequency are measured, and the measurement results are included in the measurement report message and transmitted to the network 71 (step S2). The network 71 periodically or eventically performs Aggregation pre-determination processing (step S3), and when it is determined that Carrier Aggregation is necessary, sends a different frequency measurement instruction message to the mobile station device 70 (step S4). ..

The mobile station device 70 performs the different frequency measurement process based on the control information instructed by the different frequency measurement instruction message (step S5), and transmits the measurement result of the different frequency measurement by including it in the measurement report message (step S6). The network 71 receives the measurement report message, performs the Aggregation determination process based on the measurement result (step S7), and when performing Carrier Aggregation, includes the frequency band newly received by the mobile station apparatus 70 in the Aggregation setting message and transmits it. (Step S8). The mobile station apparatus 70 starts reception processing in the specified frequency band and sends an Aggregation setting completion message to the network (step S9). As a result, the mobile station device 70 and the network 71 are in the Aggregation state (step S10).

FIG. 8 is a diagram showing another example of a sequence chart showing different frequency measurement that does not require gap control. Figure 8 shows the procedure for changing the Carrier Aggregation settings. It is assumed that the mobile station apparatus 80 of this example has a reception bandwidth wider than at least 20 MHz and has a capability capable of Carrier Aggregation. Further, the Carrier Aggregation state (step S11) is set so that the reception bandwidth is not completely used up (Time 62 state in FIG. 6). The network 81 in the figure includes a base station apparatus, a control station, and a higher-level control station.

The network 81 periodically or eventically performs Aggregation pre-determination processing (step S12), and if it determines that additional Carrier Aggregation is required, sends a different frequency measurement instruction message to the mobile station device (step S13). ). The mobile station device 80 performs the different frequency measurement process based on the control information instructed by the different frequency measurement instruction message (step S14), and transmits the measurement result of the different frequency measurement by including it in the measurement report message (step S15). When the network 81 receives the measurement report message, performs the Aggregation determination process based on the measurement result (step S16), and resets the Carrier Aggregation, the information for changing the Aggregation state of the mobile station device is included in the Aggregation reset message. Include and send (step S17). The mobile station apparatus 80 performs resetting according to the specified information and sends an Aggregation resetting completion message to the network (step S18).

FIG. 9 is a diagram showing an example of a sequence chart showing different frequency measurements that require gap control. FIG. 9 shows the gap control in the Carrier Aggregation state. It is assumed that the mobile station device of this example has a reception bandwidth wider than at least 20 MHz and has a capability capable of Carrier Aggregation. Further, it is in the Carrier Aggregation state (step S19), and it is assumed that all the reception bandwidth is used (Time 63 state in FIG. 6). The network in the figure includes a base station device, a control station, and a higher-level control station.

The network 91 periodically or eventically performs the Aggregation pre-determination process (step S20), and when it is determined that the Carrier Aggregation needs to be reset, sends a measurement gap instruction message to the mobile station device (step S21). ). The mobile station device 90 reports the completion of the measurement gap to the network 91 (step S22), performs the different frequency measurement process based on the control information instructed by the measurement gap instruction message (step S23), and measures by the different frequency measurement. Include the result in the measurement report message and send it (step S24). When the network 91 receives the measurement report message, performs the Aggregation determination process based on the measurement result (step S25), and resets the Carrier Aggregation, the information for changing the Aggregation state of the mobile station device is included in the Aggregation reset message. Include and send (step S26). The mobile station apparatus 90 resets according to the specified information and sends an Aggregation reset completion message to the network (step S27).

For each control message in FIGS. 7 to 9, the existing control message may be reused in EUTRA. For example, the different frequency measurement instruction message, the measurement gap instruction message, the Aggregation setting message, and the Aggregation resetting message can be reused only by adding the necessary parameters to the RRCConnectionReconfiguration message. Similarly, the measurement gap completion message, Aggregation setting completion message, and Aggregation reconfiguration completion message can be reused simply by adding the necessary parameters to the RRCConnectionReconfigurationComplete message.

FIG. 10 is a flowchart showing an example of the network Aggregation preprocessing procedure in FIGS. 7 to 9. This processing procedure is preferably performed by the base station apparatus, but the control station and the higher-level control station may have the same processing procedure. In the mobile station device status confirmation (step S30), the network acquires information on the status of the mobile station device during communication. Then, it is comprehensively judged from the acquired information whether or not the mobile station apparatus requires Carrier Aggregation (step S31). As a judgment as to whether or not it is necessary, the increase / decrease in the amount of downlink data buffer, the downlink throughput, the content of the measurement report reported by the mobile station apparatus, the number of users accommodated, and the like can be used. For example, when the amount of downlink data buffer or the downlink throughput (which may be the average downlink throughput) exceeds a certain predetermined threshold, it is determined that Aggregation is necessary. In addition, if the received quality of the reported frequency band during communication exceeds or falls below a certain threshold value, it is determined that Aggregation is necessary. Here, as the reception quality, EUTRA Carrier RSSI (Received) The reception measurement value of the downlink reference signal represented by Signal Strength Indicator), RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), CQI (Channel Quality indicator), path loss, etc. is used. In addition, when the number of users accommodated exceeds or falls below a predetermined threshold value, it is determined that Aggregation is necessary. Furthermore, it is of course possible to make a judgment by combining these plurality of conditions.

If Carrier Aggregation is required (Yes in step S31), then it is determined whether a measurement gap is needed for different frequency measurements (step S32). If the mobile station device is in Carreir Aggregation and the mobile station device is using all the receivers (receivers), it is determined that a measurement gap is necessary (Yes in step S32), and the measurement gap is determined. Generate an instruction message (step S33). On the other hand, if different frequency measurement is possible without a measurement gap (No in step S32), that is, if the number of frequency bands received by the receiver of the mobile station device is smaller than the number of receivers, different frequency measurement Generate an instruction message (step S34). Then, the generated control message is transmitted to the mobile station apparatus (step S35), and the process ends.

Here, because of the measurement gap, which frequency band among the frequency bands received by the mobile station device is to generate the measurement gap (that is, where in Band 62 to 64 at Time 63 in FIG. 6 is to generate the gap). ) Is required. In addition, the parameters are gap information such as gap start timing, gap period and gap length, gap validity period, frequency information such as center frequency and bandwidth of the frequency band to be measured, and cell information such as cell ID and cell individual offset. Is needed as. These parameters are derived from a combination of information from the broadcast information channel, fixed values in the system, and values specified in the measurement gap indication message.

When the mobile station device simultaneously receives at least two or more frequency bands by Carrier Aggregation, the frequency bands that generate the measurement gap are, for example, a low quality frequency band, a low traffic frequency band, and a priority. It is preferable to select at least one based on any criterion of the low frequency band of. The selection is made on the mobile station device or network. The network may select and specify a plurality of frequency bands for the purpose of simultaneously measuring a plurality of different frequencies.

The different frequency measurement instruction message requires frequency information such as the center frequency and bandwidth of the frequency band to be measured, and cell information such as the cell ID and the offset of each cell as parameters. These parameters are obtained from a combination of information in the broadcast information channel, fixed values in the system, and information specified in the different frequency measurement instruction message. When a plurality of different frequencies exist as measurement targets, a priority indicating the order of measurement may be set. In this case, the priority may be specified in the broadcast information or individually in each downlink message. If Carrier Aggregation is unnecessary, the process ends as it is.

The flowchart shown in FIG. 10 is an example of a processing procedure in a base station device in a network, and the base station device selects the necessity of Carrier Aggregation and the frequency band to be added for that purpose from the state of the mobile station device. If it is a method of determining the necessity of a measurement gap when performing different frequency measurement for performing the measurement and transmitting a control message corresponding to the mobile station device based on the determination, another processing procedure is used. Is also good. As described above, this processing procedure can be provided in the control station and the upper control station.

In FIG. 10, regarding the different frequency measurement for Carrier Aggregation, the method of determining whether or not the measurement gap is specified has been described, but the same processing can be applied to the different frequency measurement for different frequency handover. Is.

FIG. 11 is a flowchart showing an example of the different frequency measurement processing procedure of the mobile station apparatus in FIGS. 7 to 9. In receiving the measurement control information, the mobile station device receives the downlink message related to the different frequency measurement transmitted from the network and confirms the control content (step S36). Then, it is determined whether or not a measurement gap is necessary depending on the content of the downlink message (step S37). Specifically, when the downlink message is a different frequency measurement instruction message (No in step S37), a gap-free different frequency measurement is performed so as not to affect the frequency band being received (step S38). On the other hand, if the downlink message is a measurement gap instruction message (Yes in step S37), a measurement gap is generated based on the control parameters specified in the control message (step S39), and the gap is used in the generated measurement gap section. Perform different frequency measurements (step S40).

The gap-free different frequency measurement in step S38 is performed when the number of receiving frequency bands is smaller than the number of receivers (receivers). In this case, different frequency measurement is performed using an unused receiver, and reception is continued as it is in the frequency band being received. Gap-free different frequency measurement is performed based on the parameters specified in the different frequency measurement instruction message. On the other hand, the gap use different frequency measurement in step S40 is performed when the number of receiving frequency bands is equal to the number of receivers. In this case, a measurement gap is generated in the frequency band received by at least one receiver, and different frequency measurement is performed in the measurement gap. Reception continues as it is in the frequency band that does not generate a measurement gap. The measurement gap is generated based on the parameters specified in the measurement gap instruction message in the measurement gap generation. Then, gap-free different frequency measurement is performed in the generated measurement gap section.

The flowchart shown in FIG. 11 is an example of a processing procedure in the mobile station apparatus, and determines whether or not the mobile station apparatus generates a measurement gap at the time of different frequency measurement from the received measurement control information, and makes the determination. Based on this, any processing procedure other than this may be used as long as it is a method of performing different frequency measurement.

FIG. 12 is a flowchart showing an example of the network Aggregation determination processing procedure in FIGS. 7 to 9. This processing procedure is preferably performed by the base station apparatus, but the control station and the higher-level control station may have the same processing procedure. First, the base station apparatus acquires information regarding the status of the mobile station apparatus during communication in the mobile station apparatus status confirmation (step S41). Subsequently, it is determined whether or not the target mobile station device is currently set for Carrier Aggregation (during Aggregation) (step S42). If Aggregation is not in progress (No in step S42), it is comprehensively judged from the acquired information whether or not the mobile station device requires Carrier Aggregation (Step S43). As in FIG. 10, it is possible to use the increase / decrease in the amount of downlink data buffer, the downlink throughput, the content of the measurement report reported from the mobile station apparatus, the number of users accommodated, and the like as the determination of whether or not it is necessary.

If Carreir Aggregation is not required (No in step S43), the base station apparatus ends the process without doing anything. On the other hand, if Carrier Aggregation is required in step S43 (Yes in step S43), a new frequency band to be received for Aggregation is selected in the Aggregation frequency setting (step S44), and the selected frequency information is included. Generate an Aggregation configuration message (step S45). The frequency information is selected based on the frequency band having a quality equal to or higher than a predetermined threshold value and the frequency band having a small amount of downlink traffic in the different frequency measurement report from the mobile station device. Then, the Aggregation setting message is transmitted to the mobile station apparatus (step S46), and the process ends.

On the other hand, in step S42, when Aggregation is in progress (Yes in step S42), it is determined whether or not the plurality of frequency bands selected for Carreir Aggregation need to be changed (step S47). If it is not necessary to reset the frequency band (No in step S47), the process ends without doing anything.

If the frequency band needs to be reset in step S47 (Yes in step S47), the frequency band to be changed for Aggregation is selected in the Aggregation frequency reset (step S48), and the selected frequency information is included. Generate an Aggregation reset message (step S49). The frequency band is selected based on, for example, a frequency band having a quality equal to or higher than a predetermined threshold value in a different frequency measurement report from a mobile station device, and a frequency band having a small amount of downlink traffic. The frequency bands to be reset can be specified to be added, deleted, or replaced at the same time. The addition is, for example, to change from receiving two frequency bands A and B to receiving three frequency bands A, B, and C. At this time, the originally received frequency bands A and B are continuously received as they are. Deletion is, for example, changing from three frequency bands A, B, and C to receive two frequency bands A and C. At this time, the frequency bands A and C for which deletion is not instructed are continuously received as they are. Swapping is, for example, changing from two frequency bands A and B to receive two frequency bands A and C. At this time, the frequency band A for which replacement is not instructed is continuously received as it is. Then, the Aggregation reset message is sent to the mobile station apparatus (step S46), and the process ends.

The flowchart of FIG. 12 is an example of a processing procedure in a base station apparatus in a network, and the base station apparatus determines the necessity of Carrier Aggregation and the necessity of resetting Carrier Aggregation from the state of the mobile station apparatus. , Other processing procedures may be used as long as it is a method of transmitting a control message corresponding to the mobile station apparatus based on the above determination. As described above, this processing procedure can be provided in the control station and the upper control station.

Further, as a modification of the different frequency measurement processing procedure shown in FIG. 11, an example in which the mobile station device can perform different frequency measurement without a measurement gap and the network does not transmit the different frequency measurement instruction message is shown in FIG. Shown in. The mobile station apparatus determines whether different frequency measurement is necessary (step S50). It is possible to use downlink throughput, reception quality of the frequency band during communication, and the like as criteria for determination. For example, when the downlink throughput (which may be the average downlink throughput) exceeds a certain threshold value, it is determined that different frequency measurement is necessary. Further, when the reception quality of the frequency band during communication exceeds or falls below a predetermined threshold value, it is determined that different frequency measurement is necessary. Here, as the reception quality, EUTRA Carrier The received measurement value of the downlink reference signal represented by RSSI, RSRP, RSRQ, CQI, path loss, etc. is used. Further, when Aggregation is in progress, one or an average of a plurality of frequency bands may be used as the reception quality. The threshold value is specified by the broadcast information channel, is specified by a fixed value in the system, or is set to an appropriate value by the mobile station device. If it is determined that different frequency measurement is unnecessary (No in step S50), the process is terminated as it is.

If different frequency measurement is required in step S50 (Yes in step S50), the mobile station device receives the measurement control information with only the downlink message regarding the different frequency measurement transmitted from the network (in this example, only the measurement gap instruction message). It is confirmed whether or not (becomes) has been received (step S51). When the measurement gap instruction message is received (Yes in step S51), a measurement gap is generated based on the control parameters specified in the control message (step S52), and a gap-using different frequency measurement is performed in the generated measurement gap interval (Yes). Step S53).

On the other hand, in step S51, when the measurement gap instruction message is not received (No in step S51), the mobile station apparatus determines whether or not gap-free different frequency measurement is possible (step S54). Gap-free different frequency measurement is performed when the number of frequency bands being received is smaller than the number of receivers (receivers). Gap-free If different frequency measurement is possible (Yes in step S54), different frequency measurement is performed using an unused receiver (step S55), and reception is continued as it is in the frequency band being received. Gap-free different frequency measurements are obtained from a combination of information in the broadcast information channel and a fixed value in the system. On the other hand, in step S54, if gap-free different frequency measurement is not possible (No in step S54), that is, if the number of frequency bands being received is equal to the number of receivers, the process proceeds to step S51 and the network Continue to wait for the measurement gap instruction message to be received from.

The flowchart of FIG. 13 is an example of the processing procedure in the mobile station device, and shows whether the mobile station device has received the measurement control information from the network, the aggregation state of the mobile station device, the usage state of the receiver, and the like. Based on this, it is determined whether to perform the different frequency measurement that does not require a gap or the different frequency measurement that requires a measurement gap, and if the method is to perform the different frequency measurement based on the above judgment, the processing procedure is other than this. May be used.

According to the present embodiment, the mobile station apparatus performs different frequency measurement that does not require a measurement gap and different frequency measurement that requires a measurement gap. In addition, the network switches between different frequency measurement that does not require a measurement gap and different frequency measurement that requires a measurement gap, based on the state of the mobile station device.

According to the present embodiment, when the mobile station apparatus can measure different frequencies without a measurement gap, it is not necessary to generate a measurement gap for the different frequency measurement, so that the throughput of downlink data is improved. Further, since the different frequency measurement can be performed regardless of the measurement gap length, the measurement accuracy of the different frequency measurement is improved, and as a result, it is not necessary to make an unnecessary measurement report, and the power consumption is reduced. In addition, devices in the network (base station device, control station, higher control station) do not need to generate a measurement gap when the mobile station device can measure different frequencies without a measurement gap, which simplifies scheduling. .. Furthermore, it is possible to operate only the minimum required receivers during aggregation or measurement of different frequencies, and power consumption is reduced.

[Second Embodiment] Next, a second embodiment of the present invention will be described. In the first embodiment described above, the control gap during Aggregation was freely specified by network instructions. However, rather than setting the measurement gap in an arbitrary frequency band, limiting the frequency band in which the measurement gap is set based on a predetermined condition reduces the complexity of the mobile station device and the network. In this embodiment, a method of reducing complexity by classifying frequency bands into main carriers and non-main carriers will be described. The receiving device and transmitting device of the mobile station device and the receiving device and transmitting device of the base station device in the present embodiment may be the same as those in the first embodiment.

The main carrier and the non-main carrier shown in the present embodiment will be described below. The main carrier is the frequency band in which control messages are transmitted during Carrier Aggregation. The non-main carrier is a frequency band in which only traffic data for which control messages are not transmitted is transmitted. If Carrier Aggregation is not performed, the main carrier is equal to the frequency band being received. The main carrier is selected by the network using any method and is designated as a mobile station device, or the mobile station device determines based on a predetermined judgment. For example, when the network selects, the content of the measurement report reported from the mobile station apparatus, the number of users accommodated, the transmission bandwidth, the transmission frequency, and the like can be used. When the mobile station apparatus is determined, the frequency band received before performing Carrier Aggregation can be used as the main carrier.

FIG. 14 is a diagram showing an example of a sequence chart showing a procedure for changing the main carrier. FIG. 14 shows a procedure for changing the main carrier while the mobile station apparatus 140 is performing Carrier Aggregation. The mobile station device 140 has the ability to receive three frequency bands at the same time. In the sequence chart of this example, the mobile station device 140 has Band1 base station device 141, Band2 base station device 142, and Band3 base station device 143. 3 base station equipment and Carrier Start from the state where Aggregation is being performed. Note that one base station device may transmit a plurality of frequency bands. Then, an example is shown in which the main carrier is changed from the frequency band transmitted from the Band 1 base station device 141 to the frequency band transmitted from the Band 2 base station device 142. The main carrier at the start is the frequency band transmitted from the Band1 base station apparatus 141. That is, the control message (layer 3 message) is transmitted and received between the mobile station device 140 and the Band 1 base station device 141, and is controlled between the Band 2 base station device 142, the Band 3 base station device 143, and the mobile station device. No messages have been sent or received.

When the mobile station device 140 is in the communication state, it measures the base station device during aggregation (step S60) and its peripheral cells, includes the measurement result in the measurement report message, and transmits the measurement result to the Band1 base station device 141. (Step S61). The Band1 base station apparatus 141 periodically or eventically performs the main carrier determination process (step S62), and when it is determined that the main carrier needs to be changed, the main carrier change preparation message is changed to the main carrier base. A message between base stations is transmitted to the station apparatus 142 (step S63). If the main carrier can be changed, the base station apparatus 142 of the changed main carrier returns a main carrier change ready message as an inter-base station message as a response (step S64). In FIG. 14, the main carrier change preparation message is transmitted from the Band1 base station apparatus 141 to the Band2 base station apparatus 142, and the main carrier change preparation completion message is transmitted from the Band2 base station apparatus 142 to the Band1 base station apparatus 141.

Subsequently, the Band1 base station apparatus 141 transmits the main carrier change instruction message to the mobile station apparatus (step S65). The mobile station apparatus 140 changes the main carrier based on the control information instructed by the main carrier change instruction message, and transmits the main carrier change completion message to the Band2 base station apparatus 142 (step S66). After transmitting the main carrier change completion message, the mobile station apparatus 140 starts transmitting and receiving a control message to and from the Band2 base station apparatus 142 (step S67).

The main carrier change instruction message includes information such as the center frequency of the frequency band or the cell ID of the base station apparatus. Alternatively, if it is necessary to change the uplink frequency band at the same time, preamble information regarding the random access channel may be specified. The main carrier change preparation message includes the cell ID or global ID, as well as information on the mobile station device held by the main carrier.

For the control message in FIG. 14, the existing control message may be reused in EUTRA. For example, the main carrier change instruction message can be reused simply by adding the necessary parameters to the RRCConnectionReconfiguration message. Similarly, the main carrier change completion message can be reused simply by adding the necessary parameters to the RRCConnectionReconfigurationComplete message. The procedure for changing the main carrier when Aggregation is not in progress may be the same as the normal handover procedure.

FIG. 15 is a flowchart showing an example of the main carrier determination processing procedure shown in step S62 in FIG. This processing procedure is preferably performed by a base station apparatus set as a main carrier, but a control station and a higher-level control station may have the same processing procedure. The base station apparatus set as the main carrier acquires information on Aggregation in the Aggregation status confirmation (step S70). Then, it is comprehensively judged from the acquired information whether or not it is necessary to change the main carrier (step S71). The content of the measurement report reported from the mobile station apparatus, the number of users accommodated, the transmission bandwidth, the transmission frequency, and the like can be used to determine whether or not it is necessary. For example, when the reception quality of the frequency band of the base station apparatus of the main carrier falls below a certain threshold value, it is determined that the main carrier needs to be changed to the frequency band of the best reception quality.

Here, as the reception quality, the reception measurement value of the downlink reference signal represented by EUTRA Carrier RSSI, RSRP, RSRQ, CQI, path loss, etc. is used. Further, when the number of users of the base station apparatus of the main carrier exceeds a predetermined threshold value, it is determined that the main carrier needs to be changed to the frequency band having the minimum number of users. Further, when a carrier Aggregation newly receives a frequency band having a wider transmission bandwidth than the main carrier, it is determined that the main carrier needs to be changed to the frequency band having the maximum transmission bandwidth. Further, when a carrier Aggregation newly receives a transmission frequency having better propagation characteristics than the main carrier, it is determined that the main carrier needs to be changed to the frequency band of the best transmission frequency. The propagation characteristic is, for example, the straightness of the frequency. Furthermore, it is of course possible to make a judgment by combining these plurality of conditions.

If it is not necessary to change the main carrier in step S71 (No in step S71), the process ends without doing anything. On the other hand, in step S71, when it is necessary to change the main carrier (Yes in step S71), the more optimum frequency band is selected as the main carrier (step S72), and the process is completed. As the method for selecting the main carrier, any of the methods described above may be used.

The flowchart shown in FIG. 15 is an example of a processing procedure in a base station apparatus set as a main carrier, and the base station apparatus needs to change the main carrier from the state of the mobile station apparatus and the state of the network. Any other processing procedure may be used as long as it is a method capable of selecting the optimum main carrier based on the above determination. As described above, this processing procedure can be provided in the control station and the upper control station.

FIG. 16 is a diagram showing an example in which a measurement gap is generated by a non-main carrier when indicating a measurement gap. Since it is not necessary to generate a measurement gap in the main carrier, there is an advantage that the control message is not delayed. In this case, when there are multiple non-main carriers, in addition to gap information such as gap start timing, gap period and gap length, and gap validity period, information that indicates in which frequency band the measurement gap is generated ( Includes the center frequency of the frequency band, the frequency ID (also known as EARFCN), or the cell ID of the base station equipment, and combinations thereof.

FIG. 17 is a diagram showing an example in which a measurement gap is generated by the main carrier when the measurement gap is indicated. Unlike FIG. 16, since the measurement gap is generated only in the main carrier, there is no need for information indicating in which frequency band the measurement gap is generated. Further, since the method of generating the measurement gap is the same regardless of the presence or absence of Carrier Aggregation, there is an advantage that the processing procedure is simplified. In addition, the processing related to gap generation can be shared with EUTRA.

According to this embodiment, the mobile station apparatus and the network classify the frequency band in Carrier Aggregation into a main carrier and a non-main carrier. Then, a measurement gap is generated on either one of them, and different frequency measurement is performed.

According to this embodiment, in addition to the effect of the first embodiment, the mobile station apparatus and the apparatus in the network (base station apparatus, control station, upper control station) can simplify the processing procedure regarding the measurement gap, so that the circuit can be simplified. Easy to configure.

In the embodiment described above, the functions of each part of the mobile station device and the base station device or a program for realizing a part of these functions are recorded on a computer-readable recording medium and recorded on the recording medium. The mobile station device and the base station device may be controlled by loading the program into a computer system and executing the program. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, a "computer-readable recording medium" is a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, and dynamically holds the program for a short period of time. In that case, it also includes the one that holds the program for a certain period of time, such as the volatile memory inside the computer system that is the server or client. Further, the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the design and the like within a range not deviating from the gist of the present invention are also within the scope of claims. include.

10 Receiver (mobile station device) 11-1 ~ 11-n Receiver 12-1 ~ 12-n Received signal processing unit 13 Reception band setting section 14 Received signal processing control unit 15 Control message processing unit 16 Measurement processing unit 17-1 ~ 17-n antenna 20 Transmitter (mobile station device) 21 Upstream message generator 22 Transmission signal processing unit 23 Transmission signal processing control unit 24 channel mapping section 25 Transmitter 26 antenna 30 Receiver (base station device) 31 Receiver 32 Received signal processing control unit 33 Received signal processing unit 34 Upstream message processing unit 35 Inter-base station message processing unit 36 antenna 40 Transmitter (base station device) 41 Gap judgment unit 42 Aggregation Judgment Unit 43 Downward message generator 44 Transmission signal processing control unit 45 Transmission signal processing unit 46 Channel mapping section 47 Transmitter 48 Inter-base station message generator 49 antenna 50 Mobile station equipment 51-1 ~ 51-3 Base station equipment 52-1 ~ 52-3 Control station 53 Upper control station 70, 80, 90 Mobile station equipment 71, 81, 91 networks 140 Mobile station equipment 141 Band1 base station equipment 142 Band 2 base station equipment 143 Band 3 base station equipment