Method and apparatus for packet communications in wireless systems

The present invention relates generally to communication, and more specifically to techniques for transmitting and receiving data in a wireless communication network.

II. Background of the invention [0002] A wireless device (e.g., a mobile phone) in a wireless communication network may operate in one of several modes of operation, such as active and idle, at any given time. In active mode, a wireless device can be allocated to radio resources over the network and can actively exchange data with the network, e.g., for a voice or data connection. In idle mode, a wireless device cannot be allocated to radio resources and can be monitored for overhead channels transmitted over the network. The wireless device may switch between active and idle mode, if necessary, based on data requirements for the wireless device. For example, a wireless device may go into active mode as soon as there is data to send or receive, and may go into idle mode after the data exchange with the network is complete.

[0003] A wireless device may exchange signaling with the network to transition between modes of operation. Signaling consumes network resources and delays data transmission until radio resources are allocated to the wireless device. To avoid signaling and delay, the wireless device may remain in active mode for an extended period of time. However, extended stay in active mode may result in loss

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Allocated radio resources when there is no data to exchange. In addition, operation in active mode may consume more battery power, which can reduce the waiting time between recharging the battery and the talk time when there is data to exchange.

[0004] There is therefore a need in the art for techniques to transmit and receive data in a more efficient manner.

[0005] Document WO 01/52566 describes modes of discontinuous transmission on a dedicated traffic channel.

[0006] US 2003/0086379 describes energy saving achievements by turning off all or some of the processing basebands for codes and time slots that have not been transmitted due to full or partial DTX.

SUMMARY OF THE INVENTION [0007] The object of the present invention can be achieved by providing user equipment and a suitable method as well as apparatus and method according to claims 1, 2, 15 and 16 respectively.

SHORT [0008] [0009] [0010] [0011]

DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram of a 3GPP network.

FIG. 2 depicts the Radio Resource Control (RRC) - diagram for Radio Equipment Resources (User Equipment).

FIG. 3 shows an embodiment of the CPC mode. FIG. 4 shows the activated subframes for mode

CPC.

[0012] FIG. 5A, 5B and 5C modes show DTX T1, DTX operations in

T2 and DRX, respectively.

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<td> [0013]</td><td>FIG.</td><td>6A</td><td>and 6B represent</td><td colspan="2">examples</td>

<td></td><td></td><td></td><td>uplink transmissions in</td><td>CPC mode.</td><td></td>

<td> [0014]</td><td>FIG.</td><td> 7</td><td>shows examples</td><td>transmissions</td><td>link</td>

<td></td><td></td><td></td><td>downlink and uplink links in</td><td>CPC mode.</td><td></td>

<td> [0015]</td><td>FIG.</td><td> 8</td><td>represents the flow</td><td>event</td><td>for</td>

<td></td><td></td><td></td><td>switching from DRX mode</td><td>to without mode</td><td>DRX.</td>

<td> [0016]</td><td>FIG.</td><td> 9</td><td colspan="2">represents the process carried out by</td><td>EU in</td>

<td></td><td></td><td></td><td>CPC mode.</td><td></td><td></td>

<td> [0017]</td><td>FIG.</td><td> 10</td><td colspan="2">represents the process carried out by</td><td>network</td>

<td></td><td></td><td></td><td>for CPC mode.</td><td></td><td></td>

<td> [0018]</td><td>FIG.</td><td> 11</td><td colspan="2">shows a block diagram of the UE, the node</td><td>type</td>

Node B, and RNC.

DETAILED DESCRIPTION [0019] The word "exemplary" is used herein in the sense of "serving as an example, instance, or illustration." Any embodiment or structure described herein as "exemplary" need not be considered as preferred or preferred over other embodiments.

The techniques described herein can be used in various wireless communication networks, such as Code Division Multiple Access (Code Division Multiple Access) networks, Time Division Multiple Access (TDMA) networks, Time Division Multiple Access networks Frequency Division Multiple Access (FDMA) - Orthogonal FDMA (Multiple Access Division) networks. The terms "networks" and "systems" are often used interchangeably. The CDMA network can implement radio technologies such as W-CDMA, cdma2000, and so on. Cdma2000 technology covers IS-2000, IS-856 and IS-95 standards. The TDMA network can implement radio technologies such as the Global System for Mobile Communication (GSM) - (Global

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System for Mobile Communications). These various radio technologies and standards are known in the art. W-CDMA and GSM technologies are described in the documents of the organization called the "3rd Generation Partnership Project" (3GPP). Cdma2000 technology is described in the organization's documents named "3rd Generation Partnership Project 2" (3GPP2). For clarity, these techniques described below for the Universal Mobile Telecommunications System (UMTS) - (Universal Mobile Telecommunications System), which uses W-CDMA. UMTS terminology is used in most of the following description.

substantially fixed station, user equipment [0021] FIG. 1 is a diagram of a 100 3GPP / UMTS network that includes a Universal Terrestrial Radio Access Network (UTRAN) 120 network and a backbone network 150. UE 110 user equipment communicates with a Node B 130 type node in UTRAN 120. User equipment UE 110 may be stationary or mobile and may also be referred to as a wireless device, mobile station, user terminal, subscriber unit, station or some other terminology. The UE 110 user equipment may be a cell phone, a Personal Digital Assistant (PDA), a portable device, a wireless modem, and so on. The terms "UE", "wireless device", and "user" are used interchangeably herein. A Node B 130 is a node that communicates with the UE and may also be referred to as a base station, access point or by some other terminology. The Node B 130 provides communication range for a particular geographical area and supports communication for UEs within the coverage area. Controller

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Radio Network (RNC) - (Radio Network Controller) 140 and provides as routing management coupled with a Node B 110 node coordination and control for a Node B node. The backbone network 150 may include various network units that support different functions such packets, user registration, mobility, etc.

[0022] UE 110 may communicate with the Node B 130 on the downlink and / or uplink at any given time. The downlink (or forward link) refers to the communication link from the Node B node to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the Node B. [0023] In UMTS, data is processed in the form of one or more transport channels in a higher layer. Transport channels may carry data for one or more services, e.g., voice, video, packet data, and so on. Transport channels are mapped to physical channels in the physical layer or Layer 1 (L1) - (Layer 1). Physical channels are divided into channels with different traffic routing codes and are orthogonal to each other in the code domain.

[0024] 3GPP Release 5 and later support High Speed ​​Downlink Packet Access (Downlink Links). Release 6 3GPP and later support Fast Uplink Packet Access (HSUPA) - (High Speed ​​Uplink Packet Access). HSDPA and HSUPA are sets of channels and procedures that enable fast packet data transmission on downlink and uplink, respectively. Tables 1 and 2 list some of the downlink and uplink physical channels in UMTS, respectively. HS-SCCH, HS-PDSCH and HSDPCCH are used for HSDPA. E-DPCCH, E-DPDCH and E-HICH are used for HSUPA.

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Table 1 - Downlink channels

<td>Channel</td><td>Channel Name</td><td>Description</td>

<td>P-CCPCH</td><td>Basic Common Physical Control Channel (Primary Common Control Physical Channel)</td><td>Pilot signal transmission and system frame numbering (SFN). (Carry pilot and system frame number (SFN))</td>

<td>downlink DPCCH</td><td>Dedicated Physical Control Channel (Dedicated Physical Control Channel)</td><td>Pilot signal transfer, combination indicator of used transport channels for downlink DPDCH, and transmit power control (TPC) for uplink. (Carry pilot, transport format combination indicator (TFCI) for downlink DPDCH, and transmit power control (TPC) for uplink)</td>

<td>downlink DPDCH</td><td>Dedicated Physical Channel data (Dedicated Physical Data Channel)</td><td>Moving packets for the EU (Carry packets for the UE.)</td>

<td>HS-SCCH</td><td>HS-DSCH (Shared Control Channel for HSDSCH)</td><td>Transferring format information for packets sent in the associated HS-PDSCH. (Carry format information for packets sent on associated HS-PDSCH.)</td>

<td>HS-PDSCH</td><td>High Speed ​​Shared Physical Channel (High Speed ​​Physical Downlink Shared Channel)</td><td>Moving packages for various UEs. (Carry packets for different UEs.)</td>

<td>E-HICH</td><td>ARQ E-DCH Hybrid Indicator Channel (E-DCH Hybrid ARQ Indicator Channel)</td><td>Transfer confirmation (ACK) and negative confirmation (NAK) for packets sent on E-DPDCH. (Carry acknowledgment (ACK) and negative acknowledgment (NAK) for packets sent on E-DPDCH)</td>

Table 2 - Uplink channels

<td>Channel</td><td>Channel Name</td><td>Description</td>

<td>Uplink DPCCH</td><td>Dedicated Physical Control Channel (Dedicated Physical Control Channel)</td><td>Pilot signal transfer, TFCI for uplink DPDCH, TPC for downlink and feedback (FBI). (Carry pilot, TFCI for uplink DPDCH, TPC for downlink, and feedback information (FBI)</td>

<td>Uplink DPDCH</td><td>Dedicated Physical Data Channel (Dedicated Physical Data Channel)</td><td>Moving packets for the EU (Carry packets from the UE)</td>

<td>HS-DPCCH</td><td>Dedicated Physical Control Channel for HS-DSCH (Dedicated Physical Control Channel for HS-DSCH)</td><td>Moving ACK / NAK for packages received in HS-PDSCH and channel quality indicator (CQI). (Carry ACK / NAK for packets received on HS-PDSCH and channel quality indicator (CQI)</td>

<td>E-DPCCH</td><td>Dedicated E-DCH Physical Control Channel (E-DCH Dedicated Physical Control Channel)</td><td>Transferring information about the format, retransmission of the sequence number, and satisfaction bit for E-DPDCH. Carry format information, retransmission sequence number, and happy bit for EDPDCH)</td>

<td>E-DPDCH</td><td>Dedicated E-DCH Physical Data Channel (E-DCH Dedicated Physical Data Channel)</td><td>Moving packets for the EU (Carry packets from the UE)</td>

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EP 2 234 451 B1 FIG. 2 is a diagram of 200 Radio Resource Control (RRC) states - (Radio Resource Control) for the UE. When enabled, the UE selects the cell to find a suitable cell from which the UE may receive the service. Then, the UE may go into idle mode 210 or combined mode 220, depending on whether there is any activity for the UE. In idle mode, the UE is registered in the UTRAN, listens for paging messages, and updates its position relative to the UTRAN when necessary. In combined mode, the UE may receive and / or transmit data depending on its RRC state and configuration. Linked mode can also be referred to as linked state, active mode, active state, traffic state, traffic channel state, and so on.

[0026] In combined mode, the UE may be in one of four possible RRC states - CELL_DCH 230 state, CELL_FACH 232 state, CELL_PCH 234 state or URA_PCH 236 state. The CELL_DCH state is characterized by (1) dedicated physical channels allocated to the UE for the link downlink and uplink, and (2) a combination of dedicated and shared transport channels that are available to the UE. The CELL_FACH state is characterized by (1) no dedicated physical channels allocated to the UE, (2) the default shared or shared transport channel assigned to the UE for use to gain access to the UTRAN network, and (3) UE continuously monitoring the channel (FACH) - (Forward Access Channel) for signaling such as Reconfiguration messages. The CELL_PCH and URA_PCH states are characterized by (1) no dedicated physical channels allocated to the UE, (2) UE periodically monitoring the channel (PCH) - (Paging Channel) for paging messages, and (3)

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UE is not allowed to broadcast on uplink. Modes and states for UE are described in 3GPP TS 25.331.

[0027] During combined mode, the UTRAN may order the UE to be in one of four possible states based on UE activity. The UE may transition (1) from the CELL_DCH or CELL_FACH state to a connected mode to the idle mode by performing the Release RRC Connection procedure, (2) from the idle mode to the CELL_DCH state or

CELL_FACH by performing the Establish RRC Connection procedure, (3) between states

CELL_DCH and CELL_FACH by performing the reconfiguration procedure, and (4) between different configurations in the CELL_DCH state by also performing the reconfiguration procedure. These procedures are described in 3GPP TS 25.331. [0028] In an embodiment, the CELL_DCH state includes a Continuous Packet Connectivity (240) mode and an active mode 250. The active mode may correspond to HSDPA and HSUPA channel operations as described in 3GPP Edition 6. In active mode, data can be sent in any subframe on the downlink and uplink. A subframe is a time interval during which a transmission can be sent on a link. A subframe can have different durations in different networks and / or for different configurations of a given network. The CPC mode can be used to achieve efficient data transmission and reception for the UE. CPC mode can provide energy savings for the UE and / or improved bandwidth for the UTRAN network.

[0029] In an embodiment, while in CPC mode, radio resources (e.g., physical channels) are allocated and fixed for higher layers (e.g., Layers 2 and 3) are maintained, but only a subset of subframes available on the downlink and the uplink is activated. Equipment

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The UE may send signaling and / or data in activated uplink subframes and may receive signaling and / or data in activated downlink subframes. UE may disable some circuit blocks and subsystems, e.g., its transmitter and / or receiver during inactive subframes to save battery power.

[0030] In general, the CPC mode may include any number of DTX modes, any number of DRX modes and / or other modes. Each DTX mode may be associated with different activated uplink subframes and / or different actions to be performed by the UE. Each DRX mode may be associated with different activated downlink subframes and / or different actions to be performed by the UE.

[0031] FIG. 3 shows an embodiment of the CPC mode. In this embodiment, the CPC mode includes DTX 310 and 312 modes, DRX 314 mode, and non-DRX 316 mode. DTX 310 mode is also referred to as DTX T1 mode, and DTX 312 mode is also referred to as DTX T2 mode. Table 3 lists the DTX and DRX modes in FIG. 3 and provides a short description for each mode.

Table 3

<td>Mode</td><td>Description</td>

<td>DTX T1</td><td>The UE has one enabled subframe in each T1 subframes in the uplink.</td>

<td>DTX T2</td><td>The UE has one enabled subframe in each T2 subframes in the uplink.</td>

<td>DRX</td><td>The UE has one activated subframe in every R subframes on the downlink.</td>

<td>without DRX</td><td>All subframes on the downlink are activated.</td>

[0032] In general, any values ​​can be selected for T1, T2 and R. In the embodiment, T1, T2 and R are defined such that T1 &lt;T2 and R &lt;T2. In the example

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In embodiments, T1, T2 and R are selected from a set of possible values. For example, T1, T2 and R can each be set to a value of 1, 4, 8 or 16 and can be expressed as T1, T2 and RG {1, 4, 8, 16}. Other sets of possible values ​​can also be used for T1, T2 and R. Possible values ​​can be supported by two's and / or other values. T1 = 1 means that all uplink subframes are enabled. Similarly, R = 1 means that all downlink subframes are enabled. Non-DRX mode can be considered as DRX mode with R = 1.

[0033] T1-enabled subframes are activated subframes for the DTX T1 mode and are spaced apart in the T1 subframes intervals. T2-enabled subframes are enabled subframes for the DTX T2 mode and are spaced apart in the T2 subframe intervals. R-enabled subframes are activated subframes for DRX mode and are spaced apart in the R subframes intervals. In an embodiment, the T2-enabled subframes are a subset of the T1-activated subframes. In other embodiments, the T2-activated subframes may be selected independently from the T1-activated subframes.

[0034] In an embodiment, T1-activated, T2-activated, R-activated subframes for UEs are identified by an Offset relative to a reference time. This reference time may be the start time at which the CPC mode is effective for the UE and may be given in the signaling used to pass CPC parameters. The T1, T2 and R values ​​define three reference enabled subframes or sets that start in the subframe where the CPC configuration was effective (reference time) plus Offset. In an embodiment, the CPC mode parameters

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EP 2 234 451 B1 include T1, T2, R, Offset, and reference time. CPC mode can also be defined based on other parameters. The UTRAN network can select the appropriate values ​​for T1, T2 and R based on various factors, such as data activity, network load, and so on. The UTRAN may select different Offset values ​​for different UEs to distribute these UEs to the available subframes.

[0035] In general, any values ​​may be selected for T1, T2 and R. Different values ​​may be more suitable for different services and / or different conditions. In an embodiment, the CPC parameters can be set as R = 4, T1 = 4 and T2 = 8 for voice transmission over the Internet (VoIP) - (Voice-over-Internet Protocol). This configuration actually achieves 50% sleep periods during a voice session. In an embodiment, the CPC parameters can be set as R = 8, T1 = 1 and T2 = 16 for data operations. This configuration achieves a long sleep period when there is no data to send. The UTRAN may order the UE to exit the DRX mode as soon as there is data to send on the downlink. There is an average R / 2 delay subframe to start transmitting downlink packets because the UE receives each R subframe. In an embodiment, the CPC parameters may be set to R = 1, T1 = 4 and T2 = 8 when the downlink delay requirements are strict or when the downlink load is higher. Various other values ​​can also be used for CPC parameters to achieve other characteristics.

[0036] In an embodiment, the UTRAN (e.g., RNC) configures CPC parameters for the UE during connection setup, e.g., using Layer 3 (L3) and / or some

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Other signaling. Alternatively or additionally, the UTRAN can configure or modify CPC parameters via the Reconfiguration message during the connection. The UTRAN network can also configure or modify CPC parameters in other ways and / or with other types of signaling. For example, the values ​​T1, T2 and R can be sent as part of the system information signaled by a Node B. Different T1, T2 and R values ​​can also be defined for different types of connections.

[0037] Table 3 lists the actions performed by the UE for each DTX and DRX mode, according to an embodiment.

Table 4

<td>Mode</td><td>Actions carried out by the EU</td>

<td>DTX T1</td><td>Transmit the pilot signal and signaling in each T1 subframe activated. It can transmit data on any T1-activated subframe.</td>

<td>DTX T2</td><td>Transmit the pilot signal and signaling in each T2 subframe activated. No data transmission.</td>

<td>DRX</td><td>Receive HS-SCCH signaling in each inactivated subframe. It can receive data on the HS-DSCH in accordance with the signaling for scheduling information received in any R-enabled subframe.</td>

<td>without DRX</td><td>Receive signaling on the HS-SCCH in each subframe. It can receive data on the HS-DSCH in any subframe.</td>

[0038] FIG. 3 also shows sample criteria for switching between DTX and DRX modes. In one embodiment, the UE may autonomously switch between two DTX modes, e.g., based on data activity in the UE. The UE may transition from DTX T2 to DTX T1 as soon as there is data to send on the uplink. The UE may only transmit signaling in each T1-enabled subframe, so that the UE has no data to send.

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The UE may transition from DTX T1 mode to DTX T2 mode if there is no data to send on the uplink, e.g., if the T2 subframes went without any data transmission on the uplink.

[0039] In an embodiment, the UE may return to full utilization of all uplink subframes autonomously and immediately. T1-enabled subframes may be sufficient for light and / or expected data exchange. The UE may use more uplink subframes as soon as the T1-enabled subframes are insufficient for data load in the UE. The UE may if necessary, in principle, switch from DTX T2 to active mode for data transmission.

[0040] In an embodiment, the UE switches between DRX mode and non-DRX mode as recommended by the UTRAN, e.g., a Node B node. Unlike DTX transmission for an uplink, the DRX operation is synchronized between the Node B node and the EU. The Node B may direct the UE to enter the DRX mode based on any of the following: (1) the downlink traffic load for the UE is light, (2) the downlink data rate is below the threshold value and can be operated at reduced subframe size, (3) there is no data activity for the UE, (4) the data queue for the UE has been empty for some time or has just been emptied, or (5) for some other reason. During DRX mode, the UE may ignore downlink subframes that are not R-enabled subframes. The Node B may direct the UE to enter the DRX mode based on any of the following: (1) data for UE has just arrived, (2) the downlink traffic load for UE is heavy, (3) data queue for UE

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- 15 is above the threshold or rising faster than the EU baud rate (4) the cell load is heavy, or (5) for some other reason. In non-DRX mode, the UE receives signaling (e.g., HSSCCH decoding) in each subframe and can receive data as indicated by signaling.

[0041] In an embodiment, to achieve a fast transition between DRX mode and non-DRX mode, transition commands between these modes are sent using Layer 1 (L1) and / or Layer 2 (L2) fast signaling from a Node B node to the EU. For example, single fast L1 / L2 bit signaling can be used to activate or deactivate DRX mode. Fast L1 / L2 signaling provides a Node B type node with a fast mechanism to return to full use of all available downlink subframes and can improve synchronization between a Node B type and UE. Sending L1 / L2 signaling from a Node B node to the UE may be subject to a delay of approximately 5 to 8 ms, while sending L3 signaling from RNC to the UE may be subject to a delay of 100 ms or more. Nevertheless, commands to switch between modes can be sent using signaling in any layer and in any way.

[0042] The command to switch from non-DRX mode to DRX mode is referred to as order # 1 of the Node B node. The command to switch from DRX mode to non-DRX mode is referred to as order # 2 of the Node B node. Node B) can send order # 1 of the Node B type as soon as the UTRAN wants to ensure that both the UTRAN and UE operate in DRX mode. The UTRAN can send order # 2 of the Node B as soon as the UTRAN wants to ensure that both the UTRAN and UE operate in non-DRX mode.

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[0043] HSDPA and HSUPA utilize Hybrid Automatic Retransmission (HARQ) to improve the reliability of data transmission. HARQ for HSDPA and HARQ for HSUPA work in a similar way. For HSDPA, HARQ retransmissions can be sent at any time after a minimum delay, e.g., 6 to 8 TTIs. For HSUPA, HARQ retransmissions are sent 8 TTIs later.

[0044] For HSDPA, the HARQ entity at the Node B node processes and transmits the packet to the UE. The corresponding HARQ entity in the UE receives and decodes the packet. The UE shall send the ACK confirmation if the packet is decoded correctly or the negative NAK confirmation if the packet is decoded incorrectly. The Node B node will resend the packet if a negative NAK is received and send a new packet if the ACK is received. The Node B node transmits this packet again and may resend the packet any number of times until ACK confirmation is received for the packet or the Node B node decides to discontinue the packet.

[0045] A Node B node may transmit packets up to eight HARQ processes for the UE. HARQ processes can be seen as HARQ channels used to send packets. The Node B node receives downlink packets for sending to the UE and sends these packets in a subsequent instruction to the UE in available HARQ processes. Each packet is sent in one HARQ process and contains the HARQ process ID (HID) - (HARQ- process ID), which indicates the HARQ process used for this packet. Each HARQ process carries one packet at a time until the transmission / retransmission for that packet is complete and then can be used to send another packet.

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[0046] If HARQ is used for transmission, then the "no data to send" condition for transition from DTX T1 mode to DTX T2 mode may not correspond to any HARQ process that is active. This in turn can be detected by inactivity in any of the HARQ processes. When all HARQ processes are confirmed, the UE may enter the DTX T2 mode.

[0047] FIG. 4 shows an embodiment of activated subframes for HSDPA and HSUPA. In the UMTS system, the transmission timeline is divided into frames, with each frame that is identified by SFN. Each frame has a duration of 10 milliseconds (ms) and is divided into five subframes from 0 to 4. Each subframe has a duration of 2 ms and covers three slots. Each slot has a duration of 0.667 ms and covers 2560 code pulses (chips) at 3.84 Mcps, or T_slot = 2560 code pulses (chips).

[0048] On the downlink, the P-CCPCH carries the pilot signal and SFN. The P-CCPCH is used directly as a time reference for downlink channels and is used indirectly as a time reference for uplink channels. The HS-SCCH subframes are ordered in time with the P-CCPCH. HS-PDSCH subframes are delayed ot_hs-PDSCH = 2T_slot from subframes of the HS-SCCH channel. E-HICH frames are delayed by_tEHICH,_n from subframes of the HS-SCCH channel, where T_E-HICH,_n is defined in 3GPP TS 25.211.

[0049] On the uplink, the HS-DPCCH subframes are delayed by 7.5 slots from the HS-PDSCH subframes in the UE, where t_pd in FIG. 4 means propagation delay from Node B to UE. The DPCCH, E-DPCCH and E-DPDCH uplink links are time-ordered and their frame timing is mx 256 code pulses (chips) from the timing

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Equipment signaling. HS-DPCCH channel signaling. The uplink DPCCH clock speed is not directly related to the HSDPCCH clock speed. Frame timing for downlink and uplink channels are described in 3GPP TS 25.211.

[0050] FIG. 4 also shows an example CPC configuration with T1 = 4, T2 = 8, R = 4 and Offset = 1. In this example, T1-enabled subframes in DPCCH, E-DPCCH, E-DPDCH, and E-HICH link the uplinks are 4 subframes apart. The T2-enabled subframes on the DPCCH channel of the uplink are 8 subframes apart. R-enabled subframes on the HS-SCCH, HSDPDCH and HS-DPCCH are separated by 4 subframes. The offset sets specific subframes to be used for activated subframes. T1-activated, T2-activated, and R-activated subframes can be ordered in time (e.g., as described in TR 25.903, chapter 4.5.2.1) to reduce the power to thermal noise ratio (Rot) - (Rise-Over -Thermal) and extend the EU's possible sleep time between activated subframes. For example, uplink transmissions (including ACK acknowledgments for downlink transmissions) may be caught or connected together to reduce ROT on a Node B. A downlink transmissions (including ACK acknowledgments for uplink transmissions) may also be caught together to reduce the wake-up time on the wireless device.

[0051] FIG. 5A illustrates an example UE operation in DTX T1 mode for the CPC configuration shown in FIG. 4.

the UE transmits the pilot signal and (e.g., TPC) on the uplink DPCCH and (e.g., CQI) on the HS-DPCCH in each T1 activated subframe. If the UE has data to send in a given T1-enabled subframe, then the UE transmits

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Signaling equipment signaling activated (e.g., CQI: subframe.

<td colspan="2">up to 5C, CQI reports</td><td>are</td><td colspan="2">sent</td>

<td>subframes</td><td>in mode</td><td>DTX</td><td>T1</td><td>and</td>

<td>subframes</td><td>in mode</td><td>DTX</td><td>T2.</td><td>IN</td>

performance, signaling on the E-DPCCH channel, transmits data on the EDPDCH channel, and receives ACK / NAK on the E-HICH channel.

[0052] FIG. 5B illustrates an example UE operation in the DTX T2 mode for the CPC configuration shown in FIG. 4.

UE UE transmits the pilot signal and (e.g., TPC) on the DPCCH channel of the uplink and in the HS-DPCCH channel on each T2. UE equipment does not transmit E-DPCCH signaling, does not transmit data on the E-DPDCH channel and does not receive ACK / NAK in the E-HICH channel. [0053] FIG. 5C illustrates an example UE operation in DRX mode for the CPC configuration shown in FIG. 4. The UE may receive signaling on the HS-SCCH in each R-enabled subframe. The UE may receive data on the HS-DPDCH in any R-enabled subframe and may then send ACK / NAK on the HS-DPCCH.

[0054] In the embodiment shown in FIG. from 5A in T1-activated in T2-activated the next example CQI reports are sent in R-activated subframes. The UE may also send additional CQI reports when ACK / NAK confirmations are sent. Additional CQI reports can be used for retransmission or new transmissions.

[0055] In an embodiment, the two DTX modes and the DRX mode may be defined independently of each other. In another embodiment, the DTX mode and the DRX mode are jointly parameterized, e.g., to adjust the time T1R-enabled subframes. This extend sleep time and activated subframes with an embodiment can increase battery savings for the EU. In yet another

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In an embodiment, the interval T1 and R is such that the subframes used for retransmission are automatically activated subframes.

[0056] In an embodiment, the UTRAN (e.g., Node B) expects uplink transmission from the UE only in

T1-enabled subframes.

Another embodiment, the UTRAN network expects uplink transmission from this way to always reject the subframe

UE in all subframes, listens to the EU. Because the UE may autonomously switch between DTX T1 mode and DTX T2 mode, the UTRAN may not receive uplink transmission in some T1 enabled subframes. The UTRAN network can determine if the UE transmits uplink on each T1-enabled DPCCH (e.g., based on pilot signal) and can receive signaling (e.g., TPC bits for downlink power control) if the pilot signal is absent. or is of insufficient quality.

[0057] In an embodiment, the UE expects downlink transmission from the UTRAN in R-enabled subframes while in DRX mode, and in any subframe while in non-DRX mode. The UE may reject signaling (e.g., TPC bits for uplink power control) that do not correspond to the transmission sent by the UE. The UE shall start the DRX operation after receiving Node B instruction # 1 and stop the DRX operation after receiving Node B instruction # 2.

[0058] If there is at least one active HARQ process, then the UE will attempt to transmit using T1 activated subframes. If the UTRAN expects uplink transmission from the UE in all subframes, then the UE may use other subframes if the T1 enabled subframes are not sufficient. Equipment

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21 the UE does not execute DTX more than (T1-1) subframes while at least one active HARQ process exists. If there are no active HARQ processes, then the UE transmits pilot signal and signaling (e.g., CQI) in T2 enabled subframes and does not execute DTX more than (T2-1) subframes.

[0059] FIG. 6A shows examples of uplink transmissions for a CPC configuration with T1 = 4 = 8 ms and T2 = 8 = 16 ms. In this example, the UE may receive vocoder packets from the top layer every 20 ms. Line 1 in FIG. 6A shows vocoder packets received by the UE. Lines 2 to 5 show packet transmissions and retransmissions for different maximum retransmission numbers (N). T1activated subframes are represented by circles on lines 2 to 5. The T2-enabled subframes are every second circle on lines 2 to 5 and are marked with the label "T2e" above line 2. The UEs enter the DTX T1 mode after receiving the first packet 0 for transmission to the UTRAN network.

[0060] For N = 1 retransmission on line 2, packet 0 is received in subframe S1 and is sent in T1 activated subframes S₁ and S.₃, packet 1 is received in subframe S4 ​​and is sent in T1activated S subframes₅ and S.₇, and so on. Pilot signal and CQI are sent in T1-enabled subframes, including S subframes₂, S₆, S₉, S₁₃ and S.₁₅ without any data transmission. HARQ processes for packets 0, 1, 2 and 3 are terminated after subframe S14. UEs go into DTX T2 mode in subframe S16 and send pilot and CQI signals in T2-enabled subframes S17 and S19. The UE shall enter the DTX T1 mode after receiving packet 4 in subframe S21 and send this packet in T1-enabled subframes S22 and S24.

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[0061] For N = 2 retransmissions on line 3, packet 0 is received in subframe S1 and is sent

T1 activated subframes S1, S3 and S6, packet 1 is received in subframe S4 ​​and is sent activated subframes₅, S₇ and S.₉, and so on in T1 Pilot signal and CQI are sent in T1-enabled subframes, including subframes S2 and S15 without any data transmission. HARQ processes for packets 0, 1, 2 and 3 are terminated after the subframe S₁₆. UEs go into DTX T2 mode in subframe S18 and send pilot and CQI signals in T2-enabled subframes S19. The UE shall enter the DTX T1 mode after receiving packet 4 in subframe S21 and send this packet in T1-enabled subframes S22 and S24.

[0062] Packet transmission and retransmission occurs in a similar manner for N = 3 retransmissions on line 4 and N = 4 retransmissions on line 5. Many packets can be sent on some T1-enabled subframes.

[0063] FIG. 6B shows examples of uplink transmissions for a CPC configuration with T1 = 4 = 8 ms and T2 = 8 = 16 ms. In this example, the UE receives vocoder packets from the top layer every 20 ms. The UEs do not go into the DTX T2 mode because the at least one HARQ process is active during the entire duration shown in FIG. 6B. More than two packets can be sent in a given T1-enabled subframe for N = 4 retransmissions.

[0064] FIG. 7 shows exemplary downlink and uplink transmissions in CPC mode. At L1, UE operates in DRX mode after receiving Node B command # 1, and also autonomously selects DTX T2 mode. At L2, UE has data to send, goes to DTX T1 mode, and transmits packets A. At L3, UE goes to mode

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- 23 without DRX after receiving order # 2 of the Node B type, and then receives packets from 0 to 5. At L4, the UE switches to DTX T2 mode following a period of inactivity after sending the packet A. At L5, the UE has data to send, goes into DTX T1 mode, and transmits packets from B to F. At L6, the UE goes into DTX T2 mode following a period of inactivity. At L7, the UE enters DRX mode after receiving Node B instruction # 1. At L8, UE has data to send, goes to DTX T1 mode, and transmits packets from G to I. At L9, UE goes to DTX T2 mode following a period of inactivity. At L10, the UE goes into non-DRX mode after receiving Node B instruction # 2, and then receives packets from 6 to 8. At L11, the UE goes to DRX mode after receiving Node B instruction # 1.

[0065] In the embodiment shown in FIG. 3, the UTRAN sends Node B node commands to direct the UE to transition between DRX mode and non-DRX mode. Node B type commands (e.g., # 1 and # 2) can be sent in various ways. In general, it is desirable to send Node B node commands using a reliable mechanism because these commands affect network operations and performance. This can be achieved by sending Node B node commands on the control channel with low probability of error and / or confirmation. In an embodiment, Node B commands are sent on the HS-SCCH, which is quite robust and has an ACK mechanism. As a result, the reliability of Node B node commands is improved and the problems of lack of communication due to the UTRAN network and UE are in different modes are reduced.

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[0066] FIG. 8 shows an embodiment of a flow of 800 events for transitioning from DRX to non-DRX mode based on downlink activity. This embodiment assumes that Node B instruction # 2 is sent on the HS-SCCH. The UTRAN network receives downlink packets for the UE. The UTRAN network then sends order # 2 of the Node B node on the HS-SCCH in the next R-enabled subframe. The average delay in sending command # 2 of Node B type is R / 2 subframes. The UE receives the Node B instruction # 2 on the HS-SCCH and responds by sending ACK on the HSDPCCH. Upon receipt of the ACK, the UTRAN may send packets to the UE in any subframe and is not limited to R-enabled subframes. The UTRAN network can also send order # 1 of the Node B node on the HS-SCCH in a similar way as order # 2 of the Node B node.

[0067] On the downlink, there is an average R / 2 delay of the subframes to start a new packet transmission to the UE in DRX mode. A Node B node may order the UE to exit DRX mode, and the subsequent delay may be reduced to as low as zero. Retransmissions may further delay new packet transmission. In the embodiment described above, on the uplink, the delay is under UE control because the UE may transmit in any subframe. In another embodiment, certain restrictions may be further imposed when the UE may start transmitting the uplink to assist detection in the Node B. For example, the UE may be restricted to start transmitting the uplink in the T1-activated subframe. T2 enabled subframe or some other subframe.

[0068] Node B commands can be sent in various ways. In an embodiment, the UE is assigned the first 16-bit HS-DSCH Radio Network Identifier (H57P35778EN00

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RNTI) - (HS-DSCH Radio · Network Identifier) ​​for UE identities (as normal) and a second 16-bit H-RNTI identifier is also assigned for Node B commands. The H-RNTI identifier is described in 3GPP

TS 25.212, chapter 4.6. provides a 21 bit spacing

Second H-RNTI identifier for orders and future extensions. In another embodiment, one 16-bit H-RNTI identifier is reserved for broadcast orders. The instruction message may include a (16 bit) H-RNTI identifier specific to the UE, creating a 5 bit spacing for instructions and future extensions. Node B commands can also be sent on other control channels and / or in other ways.

[0069] Transmission errors and / or Node B node instruction detection errors may occur. The UTRAN and UE may then operate in different modes. Two different possible error scenarios are described below.

[0070] The UTRAN may operate in DRX mode and the UE may operate in non-DRX mode. This error situation may arise because: (1) the UTRAN sends command # 1 of the Node B node and the UE fails to detect the order, or (2) UE incorrectly detects order # 2 of the Node B node when none has been sent. A Node B would limit its downlink transmissions to R-enabled subframes, while the UE receives all subframes. UE equipment consumes additional battery power, but no data is lost.

[0071] The UTRAN may operate in non-DRX mode and the UE may operate in DRX mode. This error situation may arise because: (1) the UE incorrectly detects Node B instruction # 1 when none has been sent, or (2) the UTRAN network sends Node B instruction # 2 and the UE fails to detect the instruction. UTRAN network can broadcast in any

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- 26 subframes, while the UE only receives R-enabled subframes. Data sent in subframes other than the Activated subframes would be lost. This error situation is detectable. UTRAN can detect for this type of error and can implement the correct recovery mechanism.

[0072] The CPC mode may provide some benefits. DTX T1 mode defines a minimum T1 duty cycle that can maximize throughput during data transmission. The UE may synchronize its transmission times with its reception times to extend its sleep cycle. The UTRAN (e.g., a Node B node) has a pattern of known times where uplink transmissions are required or are more likely. The DTX T2 mode can facilitate synchronization, simplify detection and search for uplink transmissions, and simplify the implementation of a Node B. Node B. For example, a Node B node may not search every subframe if it knows that uplink transmissions are sent in or start at T2-enabled subframes. Node B detection can also be simplified compared to a system that does not use T2-enabled subframes. In such a system, it may be more difficult for a Node B node to detect a signal that is transmitted irregularly without known periodicity, which may help in energy accumulation / correlation.

[0073] With reference to FIG. 2, the UE may switch from CPC to active mode based on any of the following: (1) amount of downlink data to send to the UE (e.g., for a new transport and / or logical channel)

57P35778PL00

EP 2 234 451 B1 suggests using more downlink subframes, (2) the network is overloaded and the scheduler performance can be improved by allowing the scheduler to freely use all downlink subframes, and / or (3) for some other reason. The UE may transmit data in any uplink subframe and / or receive data in any downlink subframe in active mode. Active mode can improve performance at the expense of more battery power. UEs may transition from active mode to CPC mode based on any of the following: (1) traffic load for the UE is light, (2) there is no user data activity, or (3) for some other reason. The UTRAN can determine exactly the UE downlink data activity based on UE data queue status and can accurately determine UE uplink data activity based on receiving data buffer status reports maintained by the UE. [0074] In an embodiment, the UTRAN network directs the UE to operate in active mode or in CPC mode. The UTRAN may direct the UE to a switching mode by sending a mode switching command or some other signaling. The UTRAN may also direct the UE to enter the CPC mode by sending parameters for the CPC mode. In another embodiment, the UE may select to operate in active mode or in CPC mode and may send either a mode switch request (if the decision is made by the UTRAN) or a mode switch indication (if the decision can be made by the UE).

[0075] The UTRAN (e.g., RNC) may command the UE to enter CPC mode (e.g., by sending CPC parameters or mode switching) whenever the UTRAN wants to ensure that

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- 28 both the UTRAN and UE networks operate in CPC mode. The UTRAN may also order the UE to go into active mode whenever the UTRAN wants to ensure that both the UTRAN and UE are in active mode.

[0076] In the embodiment shown in FIG. 3, the CPC mode includes two DTX modes, one DRX mode and non DRX mode. In general, the CPC mode may include any number of DTX modes, non-DTX mode, any number of DRX modes, non-DRX mode, or any combination thereof. The mode without DTX can be considered a special case of DTX T1 with T1 = 1.

[0077] In another embodiment, the CPC mode includes a Connected Deep mode (or simply a deep mode) in which the UE has one enabled subframe in each T3 subframes on the uplink link and one activated subframe in each R2 subframes on the link downlink. Basically, T3 and R2 can be defined as T3&gt; T2 and R2&gt; R. T3 and R2 can be set to large values, e.g., much larger than T2 and R, respectively, or probably indefinitely. Deep mode can be turned off by setting T3 = T2 and / or R2 = R.

[0078] In deep mode, the UE may (a) stop listening or listen very rarely on the downlink and (b) stop sending or transmit very rarely on the uplink. The UE may measure CPICH and P-CCPCH and may decode HS-SCCH of supported and surrounding Node B nodes in R2 enabled subframes. The UE may update its active set of Node B nodes, if necessary, based on measurements. The UE may ignore the TPC commands sent by the Node B to regulate UE transmit power. The UEs may transition from deep mode based on various trigger events e.g., if the UE

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- 29 receives data in its buffer or receives a packet on the downlink. If any trigger events occur, then the UE may go to (a) DTX T1 mode, DTX T2 mode or non-DTX mode for uplink transmission, and (b) DRX mode or non-DRX mode for downlink reception. During deep mode, UE synchronization on a Node B node is probably lost. The procedure can be used to reactivate the UE from depth mode. This reactivation may be accompanied by a sufficiently long DPCCH preamble to allow the closed-loop power control mechanism to bring the UE transmit power back to the correct power level.

[0079] For clarity, the techniques have been described in detail for the UMTS system. The CPC mode may be a CELL_DCH state mode or configuration as shown in FIG. 2. The CPC mode can also be used in other ways in the UMTS system. [0080] The techniques described herein can also be used for other communication networks, other channel structures, other frame and subframe structures, and / or other transmission schemes. These techniques can be used for HARQ as well as transmissions without HARQ.

[0081] FIG. 9 shows an embodiment of a process 900 performed by a wireless device for operations in CPC mode. During connected mode, the wireless device operates in one of many DTX modes or non-DTX mode for transmission to the wireless network (block 910). The wireless device also operates in one of at least one DRX or non-DRX mode for receiving from a wireless network (block 920). Each DTX mode can be associated with various subframes that can be used to send signaling and / or data to

57P35778PL00

Wireless network. The non-DTX mode can be associated with all subframes that can be used to send signaling and / or data to a wireless network. Each DRX mode can be associated with various subframes that can be used to receive signaling and / or data from a wireless network. Non DRX mode can be associated with all subframes that can be used to receive signaling and / or data from a wireless network. The wireless device can operate in any of the following modes: (1) DTX and DRX, (2) DTX and without DRX, (3) without DTX and DRX, or (4) without DTX and without DRX.

[0082] A variety of DTX modes may include first and second DTX modes. In the first DTX mode, the wireless device may transmit signaling in the first activated subframes and may transmit data in the first activated subframes if there is data to be sent to the wireless network (block 912). In the second DTX mode, the wireless device may transmit signaling in the second activated subframes (block 914). In an embodiment, the wireless device sends Layer 1 signaling (e.g., pilot, TPC, CQI, and so on), and can send signaling for higher layers in the first DTX mode, and only sends Layer 1 signaling in the second DTX mode. In general, a wireless device may be allowed to send different types of signaling, or it may be restricted to send only certain types of signaling in each DTX mode. The signaling sent in the first DTX mode may thus be the same as or different from the signaling sent in the second DTX mode. At least one DRX mode may include a single DRX mode. In DRX mode, the wireless device can receive signaling in third activated

57P35778PL00

It can receive data in third activated subframes if the signaling indicates data that is being sent to the wireless device (block 922). The first activated subframes may be a subset of the subframes available for the uplink and may be separated from each other by T1 of the subframes. The second activated subframes may be a subset of the first activated subframes and may be separated from each other by the T2 subframes. The third enabled subframes may be a subset of the subframes available for the downlink and may be separated from each other by R subframes. T1, T2, and / or R can be configurable parameters.

[0083] A wireless device may autonomously switch between multiple DTX modes and may autonomously switch to non-DTX mode based on data load on the wireless device (block 916). A wireless device may switch between at least one DRX mode and non-DRX mode based on signaling from a wireless network (block 924). The wireless device can also switch between active mode and CPC mode based on signaling from the wireless network. The active mode can correspond to all subframes that can be used for transmission and reception.

[0084] FIG. 10 shows an embodiment of a process 1000 performed by a wireless network for CPC mode. The wireless network receives from a wireless device operating in one of many DTX modes or without DTX mode while in the connected mode (block 1010). The wireless network transmits to a wireless device operating in one of at least one DRX mode or non-DRX mode while in the connected mode (block 1020).

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Active subframe devices: devices [0085] Various DTX modes may include first and second DTX modes. When the wireless device operates in the first DTX mode, the wireless network may receive signaling from the wireless in the first and may receive wireless data in the first activated subframes, if the signaling indicates data that is being sent to the wireless device (block 1012). When the wireless device operates in the second DTX mode, the wireless network may receive signaling from the wireless device in the second activated subframes (block 1014). The wireless network may detect for signaling from a wireless device in all subframes available for the uplink (block 1016). At least one DRX mode may include a single DRX mode. When the wireless device operates in DRX mode, the wireless network may transmit signaling in third activated subframes and may transmit data in third activated subframes, if there is data to be sent to the wireless device (block 1022) send signaling to

A wireless network can direct a wireless device to switch between DRX mode and non-DRX mode (block 1024). The wireless network can also send signaling to direct the wireless device to switch between active mode and CPC mode.

[0086] FIG. 11 is a block diagram of an embodiment of UE 110, a Node B 130 and an RNC 140 node in FIG. 1. On the uplink, data and signaling intended for sending by UE 110 are processed (e.g., formatted, encoded and interleaved) by encoder 1122 and further processed (e.g., modulated, channeled and encrypted) by a modulator (Mod) 1124 to generate the output

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- 33 code pulses (chips). The transmitter (TMTR) 1122 then shapes (e.g., converts to analogue, filters, amplifies and converts the frequency to a higher) output code pulses (chips) and generates a uplink signal that is transmitted via the 1134 antenna. On the downlink, the antenna 1134 receives a downlink signal sent through a Node B 130 node. A receiver (RCVR) 1136 shapes (e.g. filters, amplifies, converts frequencies to lower ones and converts them to the digital form) of the received signal from antenna 1134 and provides samples. Demodulator (Demod) 1126 processes (e.g., decrypts, divides into channels and demodulates) samples and provides symbol estimates. Decoder 1128 further processes (e.g., deinterlaces and decodes) symbol estimates and provides decoded data. Encoder 1122, modulator 1124, demodulator 1126 and decoder 1128 can be implemented by modem processor 1120. These units perform processing in accordance with radio technology (e.g., WCDMA or cdma2000) used by the network.

[0087] The controller / processor 1140 directs the operation of the various entities in UE 110. The controller / processor 1140 can perform the process 900 in FIG. 9 and / or other processes for the techniques described herein. Memory 1142 stores program codes and data for UE 110, e.g., parameters and commands for CPC operations.

[0088] FIG. 11 also shows an embodiment of a Node B 130 and RNC 140 node. A Node B 130 node includes a controller / processor 1150 that performs various functions for communication with UE 110, a memory 1152 that stores program codes and data for a Node B 130 node and a transceiver 1154 that supports radio communication with UE 110. The controller / processor 1150 may perform process 1000 in FIG. 10 and / or other processes for the techniques described herein, and may also send Node B node instructions to the UE

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110 in CPC mode. The RNC 140 Radio Network Controller includes an 1160 controller / processor that performs various functions to support communication for UE 110 and an 1162 memory that stores program codes and data for RNC 140. The 1160 controller / processor can configure the CPC mode and can instruct you to switch between modes active and mode

CPC for EU 110.

[0089] Those skilled in the art will understand that information and signals can be represented using any of a variety of technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and code pulses (chips) that may be cited in the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles or any combination of them.

[0090] It will also be appreciated by those skilled in the art that various exemplary logic blocks, modules, circuits, algorithm steps, described in connection with the embodiments shown herein, can be implemented as electronic equipment, computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, various examples of components, blocks, modules, circuits and stages have been described above generally in terms of their functionality

Whether such functionality is implemented as hardware or software depends on the specific application imposed on the entire system.

and design restrictions,

Skilled artisans may implement the described functionality in various ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

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Signal processor [0091] The various illustrative logic blocks, modules and circuits described in connection with the exemplary embodiments illustrated herein can be implemented or implemented in a general purpose digital signal processor (DSP) - (Digital Signal Processor), Integrated circuit for specific applications (ASIC) - (Application Specific Integrated Circuit), a directly programmable gate matrix (FPGA) circuit (Field Programmable Gate Array) or other programmable logic device, in a discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller or state machine. The processor can also be implemented as a combination of computing devices, e.g., a combination of DSP and microprocessor, multiple microprocessors, one or more microprocessors in combination with a DSP core or any other such configuration.

[0092] The method steps or algorithm described in connection with the embodiments shown herein can be implemented directly in the hardware, in a software module executed by the processor, or in a combination thereof. The software module may be in RAM, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of data carrier known from the state of the art. An exemplary data carrier is coupled to a processor such that the processor can read information from and write information to the data carrier. Alternatively, the data carrier may be integrated with the processor. The processor and storage medium may be in the ASIC. ASIC can

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- 36 be in the user's terminal. Alternatively, the processor and the storage medium may be in the user terminal as discrete components.

[0093] The previous description of the disclosed embodiments is provided to enable any person skilled in the art to implement or use the present invention. Various modifications to said embodiments may be readily apparent to one of ordinary skill in the art, and the basic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not intended to be limited to the embodiments shown here, but to be in accordance with the widest scope corresponding to the principles set out and novel features.

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37 SPECIAL EMBODIMENTS [0094]

1. A wireless device comprising: at least one processor for operating in one of a plurality of DTX (Discontinuous Transmission) or non-DTX modes while in connected mode, for transmission to a wireless network, and for operating in one of at least one discontinuous reception mode (DRX) - (Discontinuous Reception) or non-DRX mode while in connected mode for receiving from a wireless network; and memory coupled to the at least one processor.

2. A wireless device according to embodiment 1, wherein each DTX mode is associated with various subframes usable for sending data or signaling or both data and signaling to a wireless network.

3. A wireless device according to embodiment 1, wherein each DRX mode is associated with various subframes usable for receiving data or signaling or both data and signaling from a wireless network.

4. A wireless device according to embodiment 1, wherein many DTX modes include a first DTX mode, and wherein in the first DTX mode, at least one processor transmits signaling in the first activated subframes corresponding to a subset of subframes available for the uplink and transmits data in the first activated subframes, if there is data to send to the wireless network.

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5. A wireless device according to embodiment 4, wherein the plurality of DTX modes include a second DTX mode, and wherein in the second DTX mode, the at least one processor transmits signaling in the second activated subframes corresponding to a subset of the first activated subframes.

6. The wireless device according to embodiment 4, wherein the first activated subframes are spaced apart in the subframes T1 compartments, where T1 is a configurable parameter.

7. The wireless device according to embodiment 5, wherein the second activated subframes are spaced apart in the subframes T2 intervals, where T2 is a configurable parameter.

8. The wireless device of embodiment 1, wherein the at least one DRX mode includes the first DRX mode, and wherein in the first DRX mode, the at least one processor receives signaling in activated subframes corresponding to a subset of subframes available for the downlink, and receives data in activated subframes. , if the signaling indicates data sent to the wireless device.

9. The wireless device according to embodiment 8, wherein the enabled subframes are spaced apart in the subframes R compartments, where R is a configurable parameter.

10. A wireless device according to embodiment 1, wherein many DTX modes include a DTX mode in which the transmit power of the wireless device is not controlled.

11. A wireless device according to embodiment 1, wherein the plurality of DTX modes include a DTX mode in which the wireless device does not transmit uplink signaling and data, and wherein at least one DRX mode

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- 39 includes DRX mode, in which the wireless device does not receive signaling and data on the downlink.

12. A wireless device according to embodiment 1, wherein at least one processor receives the configuration T1, T2, R and offset from the wireless network, with T1 defining the interval between the first activated subframes for the first DTX mode, T2 defining the interval between the second activated subframes for the second DTX mode , R defining the distance between the third activated subframes for DRX mode, and the offset identifying the first, second and third activated subframes.

13. A wireless device according to embodiment 1, wherein the at least one processor autonomously passes between multiple DTX modes.

14. The wireless device according to embodiment 1, wherein the at least one processor autonomously goes into the mode without DTX based on the data load on the wireless device.

15. A wireless device according to embodiment 1, wherein the at least one processor switches between the at least one DRX mode and the non-DRX mode based on signaling from a wireless network.

16. The wireless device of embodiment 1, wherein the at least one processor receives signaling to transition between at least one DRX mode and non-DRX mode from the wireless network via Layer 1 or Layer 2.

17. A wireless device according to embodiment 1, wherein the at least one processor switches between active mode and Continuous Packet Connectivity (CPC) mode based on signaling from a wireless network, wherein the CPC mode includes multiple

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- 40 DTX modes and at least one DRX mode, and wherein the active mode includes non-DTX mode and non-DRX mode.

18. A wireless device comprising: at least one processor for operating in a connected mode for communication with a wireless network and for operating in one of a plurality of Discontinuous Transmission (DTX) modes or a mode without DTX while in connected mode, for transmission to wireless network; and memory coupled to the at least one processor.

19. A wireless device, comprising: at least one processor for operating in a connected mode for communication with a wireless network, and for operating in one of at least one discontinuous reception mode (DRX) - (Discontinuous Reception) or a mode without DRX while in mode connected, for receiving from a wireless network; and memory coupled to the at least one processor.

twenty. A method comprising: operating in one of a plurality of DTX (Discontinuous Transmission) or non-DTX modes while in connected mode for transmission to a wireless network, and operating in one of at least one discontinuous receiving mode ( DRX) - (Discontinuous Reception) or non-DRX mode while in connected mode for receiving from a wireless network.

21. The method of embodiment 20, wherein the plurality of DTX modes include a first DTX mode, and wherein the operation in the first DTX mode includes transmitting signaling in the first activated subframes corresponding to a subset of subframes available for the uplink, and transmitting data in the first activated

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In subframes, if there is data to be sent to the wireless network.

22. The method of embodiment 21, wherein the plurality of DTX and DTX modes include activated wherein the transmission of subframes of DTX modes includes a second operation in a second signaling mode in the second corresponding to a subset of subframes.

23. The method of embodiment 20, wherein operating in one of the at least one DRX mode includes receiving signaling in activated subframes corresponding to a subset of subframes available for the downlink, and receiving data in activated subframes if the signaling indicates data sent to a wireless device.

24. The method of embodiment 20, further comprising: autonomously switching between multiple DTX modes; and autonomous transition to non-DTX mode based on data load on the wireless device.

25. The method of embodiment 20, further comprising: switching between the at least one DRX mode and the non-DRX mode based on signaling from a wireless network.

26. A device comprising: means for operating in one of many Discontinuous Transmission (DTX) or non-DTX modes while in connected mode for transmission to a wireless network, and means for operating in one of at least one mode discontinuous reception (DRX) (Discontinuous Reception) or non-DRX mode while in connected mode for receiving from a wireless network.

first activated

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27. The apparatus according to embodiment 26, wherein the plurality of DTX modes include a first DTX mode, and wherein the means for operating in a first DTX mode include means for transmitting signaling in the first activated subframes corresponding to a subset of the subframes available for the uplink and the means for transferring data in the first activated subframes, if there is data to be sent to the wireless network.

28. The apparatus of embodiment 27, wherein the plurality of DTX modes include a second DTX mode, and wherein the means for operating in a second DTX mode include means for transmitting signaling in second activated subframes corresponding to a subset of the first activated subframes.

29. The apparatus according to embodiment 26, wherein the means for operating in one of the at least one DRX mode include means for receiving signaling in activated subframes corresponding to a subset of subframes available for the downlink, and means for receiving data in activated subframes if the signaling indicates data sent to wireless device.

thirty. A device comprising: at least one processor for receiving from a wireless device operating in one of a plurality of DTX (Discontinuous Transmission) modes or a mode without DTX while in connected mode, and for transmitting to a wireless device operating in one of at least one Discontinuous Reception (DRX) or non-DRX mode while in connected mode; and memory coupled to the at least one processor.

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- 43 31. The apparatus of embodiment 30, wherein the plurality of DTX modes include the first DTX mode, and wherein, when the wireless device is operating in the first DTX mode, at least one processor receives signaling from the wireless device in the first activated subframes corresponding to a subset of subframes available for the uplink, and receives data from a wireless device in the first activated subframes, if the signaling indicates data sent by a wireless device.

32. The apparatus of embodiment 31, wherein the plurality of DTX modes include a second DTX mode, and wherein, when the wireless device is operating in a second DTX mode, the at least one processor receives signaling from the wireless device in second activated subframes corresponding to a subset of the first activated subframes.

33. The device according to embodiment 30, wherein the at least one processor detects signaling from the wireless device in all subframes available for the uplink.

34. The device of embodiment 30, wherein at least one DRX mode includes a first DRX mode, and wherein, when the wireless device is operating in the first DRX mode, the at least one processor transmits signaling to the wireless device in activated subframes corresponding to a subset of subframes available for the downlink , and transmits data to the wireless device in activated subframes if there is data to send to the wireless device.

35. The device according to embodiment 30, wherein at least one processor sends the T1, T2, R configuration and offset to the wireless device from T1

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EP2 234 451 B1 defining the spacing between the first activated subframes for the first DTX mode, T2 defining the spacing between the second activated subframes for the second DTX mode, R defining the spacing between the third activated subframes for the DRX mode, and the offset identifying the first, second and third activated subframes .

36. The apparatus of embodiment 30, wherein the at least one processor sends signaling to direct the wireless device to transition between at least one DRX mode and non-DRX mode.

37. A device according to embodiment 30, wherein at least one processor sends signaling to route the wireless device to transition between active mode and Continuous Packet Connectivity (CPC) mode, wherein the CPC mode includes multiple DTX modes and at least one DRX mode, and wherein the active mode includes non-DTX mode and non-DRX mode.

38. A method comprising: receiving from a wireless device operating in one of a plurality of DTX (Discontinuous Transmission) or non-DTX modes while in a connected mode; and sending to a wireless device operating in one of at least one discontinuous reception mode (DRX) - (Discontinuous Reception) or a non-DRX mode while in connected mode.

39. The method of embodiment 38, wherein the plurality of DTX modes include a first DTX mode, and wherein receiving from a wireless device operating in the first DTX mode includes receiving signaling from a wireless device in the first activated mode.

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And subframes corresponding to a subset of the subframes available for the uplink, and receiving data from the wireless device in the first activated subframes if the signaling indicates data sent by the wireless device.

40. The method of embodiment 39, wherein the plurality of DTX modes include a second DTX mode, and wherein receiving from a wireless device operating in the second DTX mode includes receiving signaling from an activated second subset of the first wireless device subframes corresponding to the activated subframes.

41. The method of embodiment 38, wherein sending to a wireless device operating in one of at least one DRX mode includes transmitting signaling to the wireless device in activated subframes corresponding to a subset of subframes available for the downlink, and sending data to the wireless device in activated subframes, if they exist data to be sent to the wireless device.

42. An apparatus comprising: means for receiving from a wireless device operating in one of a plurality of DTX (Discontinuous Transmission) or non-DTX modes while in combined mode; and means for transmitting to the wireless device operating in one of at least one discontinuous reception mode (DRX) - (Discontinuous Reception) or a mode without DRX while in connected mode.

43. A device according to embodiment 42, wherein the plurality of DTX modes include a first DTX mode, and wherein the means for receiving from a wireless device

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Operating in the first DTX mode include means for receiving signaling from a wireless device in the first activated subframes corresponding to a subset of subframes available for the uplink, and means for receiving data from the wireless device in the first activated subframes if the signaling indicates data sent by the wireless device.

44. The apparatus of embodiment 43, wherein the plurality of DTX modes include a second DTX mode, and wherein the means for receiving from a wireless device operating in the second DTX mode include means for receiving signaling from a wireless device in second activated subframes corresponding to a subset of the first activated subframes.

45. The device of embodiment 42, wherein the means for transmitting to a wireless device operating in one of at least one DRX mode include means for transmitting signaling to the wireless device in activated subframes corresponding to a subset of subframes available for the downlink, and means for transmitting data to the wireless device in activated subframes, if there is data to be sent to the wireless device.

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