A method and device for realizing drx function

A technology with functions and configuration units, applied in the field of communications, can solve the problems of waste of time-frequency resources, increase equipment costs, affect cell capacity, etc., and achieve the effect of saving operating expenses and avoiding waste of resources

Active Publication Date: 2011-11-30
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

Therefore, in each subframe, the network side does not necessarily need to determine the DRX flags of all UEs, but only needs to obtain the DRX flags of UEs that are scheduled. From this perspective, the network side in each subframe is All UEs in the system update the corresponding DRX-related timers, which is a waste of system time-frequency resources
[0011] For example, suppose there are 1000 UEs in the cell, and each UE needs to configure 1 DRX Inactivity Timer, 1 On Duration Timer, 8 DRX Retransmission Timers and 8 HARQ Rtt Timers: then at least 1000*(1+ 1+8+8)=18000 DRX-related timers, and the precision of each DRX-re

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  • A method and device for realizing drx function
  • A method and device for realizing drx function
  • A method and device for realizing drx function

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[0026] In order to reduce the operating overhead of the system without increasing the equipment cost and affecting the capacity of the cell, in the embodiment of the present invention, when implementing the DRX function, the following technical solution is adopted: before preparing for scheduling, the network side needs to check the The state of the DRX-related timer of the scheduled UE, and judge whether the UE to be scheduled enters the DRX state according to the state of the DRX-related timer. For UEs that exist but are not scheduled this time, no operation is performed. That is to say, during each scheduling, the network side no longer judges whether it enters the DRX state for each UE, but only judges whether it enters the DRX state for the UE to be scheduled, and does not perform any operation on the unscheduled UE this time. , so that the operating overhead on the network side can be greatly reduced, and the equipment cost on the network side will not be increased.

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Abstract

The invention relates to the field of communication and discloses a method and a device for realizing a discontinuous reception (DRX) function, which are used for lowering operation cost of a system on the premise of not increasing equipment cost and not influencing cell capacity. The method comprises the following steps of: establishing DRX related timers for user equipment (UE) by using a base station when the UE accesses the system; and judging whether to schedule the UE or not only according to the states of the DRX related timers of the current UE to be scheduled in the current subframe before scheduling, instead of determining the states of the DRX related timers of all the UE. Therefore, by the method and the device, the operation cost of a network side can be effectively saved, resource waste of the system is avoided, the equipment cost of the network side cannot be increased, and the user capacity of cells cannot be influenced.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for realizing DRX functions. Background technique [0002] According to the LTE (Long Term Evolution) protocol, the DRX (discontinuous reception) function can be configured for the UE in the "RRC_CONNECTED" (radio resource control protocol connection) state. After the DRX function is enabled, the UE can discontinuously monitor the PDCCH (physical downlink sharing) control channel). A DRX cycle consists of two states: "working state" - during which UE monitors PDCCH; "DRX state" - during which UE can skip PDCCH data reception to save power. [0003] In order to realize the transition between the two states in the DRX cycle, the network side configures several timers for the DRX function of each UE at the RRC layer, which are called DRX-related timers. Taking a UE as an example, the DRX-related timers mainly include: [0004] DRX Inactivity Timer: the DR...

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Application Information

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IPC IPC(8): H04W74/04H04W76/04
Inventor 王奕张龙周陈芬
Owner DATANG MOBILE COMM EQUIP CO LTD
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