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Method and apparatus for controlling discontinuous transmission and reception

A technology of user equipment and controller, which is applied in the field of wireless communication and can solve problems such as UE congestion and high delay

Active Publication Date: 2011-12-14
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This situation will lead to congestion (high latency) for the UEs involved, unless the Node-B does not initiate DRX in some of these UEs to schedule their transmissions in other TTIs

Method used

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  • Method and apparatus for controlling discontinuous transmission and reception
  • Method and apparatus for controlling discontinuous transmission and reception

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Embodiment

[0027] CLAIMS 1. A method for controlling discontinuous transmission and reception.

[0028] 2. The method of embodiment 1, comprising the Node-B scheduling an offset for at least one of DTX and DRX of the UE.

[0029] 3. The method of embodiment 2, comprising the Node-B sending the offset to the UE.

[0030] 4. The method of embodiment 3, wherein the offset enables at least one of the DTX mode and the DRX mode to be shifted based on the received offset.

[0031] 5. The method according to any one of embodiments 3-4, wherein the Node-B sends the offset through HS-SCCH.

[0032] 6. The method of embodiment 5, wherein the Node-B sends the offset using specific information bits in the Type 2 HS-SCCH.

[0033] 7. The method of embodiment 6, wherein four bits of specific information bits are used to indicate the offset, and the remaining specific information bits are used to indicate that HS-SCCH transmissions are associated with changes in the offset.

[0034] 8. The method acc...

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Abstract

A method and apparatus for controlling discontinuous transmission and reception are disclosed. A Node-B schedules an offset for discontinuous transmission (DTX) and / or discontinuous reception (DRX) for a user equipment (UE) and sends the offset to the UE. The UE then shifts the DTX and / or DRX pattern based on the received offset. The UE may modify the offset based on the transmission time of an activation command for DTX and DRX. The UE may modify an offset for DTX and DRX to shift the DTX pattern and DRX pattern when the UE receives downlink data or transmits uplink data based on a sub-frame number at the time of the downlink reception and uplink transmission.

Description

technical field [0001] The present invention relates to wireless communications. Background technique [0002] The 3rd Generation Partnership Project (3GPP) Release 7 specification introduced Continuous Packet Connectivity (CPC) enhancements. CPC is the period during which data is inactive and may operate continuously (i.e. can transmit and receive in all subframes) as long as required, the user equipment (UE) is allocated resources but does not transmit and / or receive continuously (i.e. only in A pattern of transmission and / or reception in a subset of uplink and downlink subframes). Discontinuous uplink transmission and downlink reception increases system capacity and UE battery life. [0003] In order to implement CPC, upper layers (such as Radio Resource Control (RRC) layer) define parameters for discontinuous transmission (DTX) and discontinuous reception (DRX) to set transmission and reception modes and triggers. One of the parameters is "UE_DTX_DRX" for joint contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/08H04W52/02H04W72/12H04W88/08
CPCH04W88/08H04W76/048H04W48/08H04W72/1289H04W52/0216H04W52/02H04W72/1263H04W76/28Y02D30/70H04W72/23H04W72/231H04W72/0446
Inventor P·马里内尔C·R·凯夫E·M·莱尔
Owner APPLE INC