Method, device and base station for distributing sounding reference signal (SRS) resource in long term evolution (LTE) system

Abstract

The invention discloses a method, a device and a base station for distributing sounding reference signal (SRS) resource in a long term evolution (LTE) system. Before distributing SRS for user equipment (UE), uplink sounding reference signal information (SRS) is divided into a plurality of SRS secondary resources in advance, and a plurality of SRS secondary resource collections are formed, wherein the SRS secondary resources in the identical SRS secondary resource collections are provided with identical resource allocation. The method of distributing SRS resource includes the following steps of ascertaining the SRS secondary collections which are used for distributing the SRS resources for the UE according to access requirement information transmitted by the UE, and distributing the SRS secondary resources capable of being distributed in the ascertained SRS secondary collections to the UE. According to the method, the device and the base station for distributing (SRS) resource in the LTE system, complexity of distribution of the SRS resource can be reduced, search time capable of being used for the distribution of the resource can be shortened, and therefore time of the base station to distribute the SRS resource to the user equipment (UE) can be saved and distribution efficiency is improved.

Description

technical field [0001] The present invention relates to a TD-LTE communication system, in particular to a method, device and base station for allocating SRS resources in the LTE system. Background technique [0002] In the time-division long-term evolution system (TD-LTE system), the uplink sounding reference signal (SRS) is used to measure the quality of the uplink channel. Specifically, the use of SRS can realize frequency selective scheduling of user equipment (UE). frequency selection scheduling), power control and timing advance functions. There are two types of TD-LTE systems at present, which are indoor systems and outdoor systems. For an indoor system, the system function of the SRS is frequency selective scheduling; for an outdoor system, the system function of the SRS includes frequency selective scheduling and beamforming. [0003] The design of the SRS in the current protocol is relatively complicated. This is because, on the one hand, the impact of the SRS on ...

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is to provide a method, device and base station for allocating SRS resources in an LTE system, so as to overcome the cumbersome search process in the prior art due to the need to search layer by layer on multiple SRS resource trees to find idle nodes , time-consuming and low efficiency of system SRS resource allocation

Images