A method and device for configuring SRS resources

Abstract

The invention discloses an SRS resource configuration method and device. The method comprises the steps that the PCI value of a first cell is determined, wherein the first cell is any one of cells within a target network coverage system; modulo-three operation is carried out on the PCI value of the first cell to acquire the PCI modulo-three value of the first cell, and an SRS resource subset corresponding to the first cell is determined according to the PCI modulo-three value of the first cell; and an SRS resource in the SRS resource subset is configured to a terminal which accesses the first cell, so that the SRS resource which accesses the terminal in the first cell is orthogonal to an SRS resource which accesses a terminal in a neighbor cell of the first cell, and SRS resource mutex configuration of adjacent cells is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for configuring SRS resources. Background technique [0002] At present, the positioning technology of terminals in mobile communication networks has attracted more and more people's attention. The application of location-based services has flourished and penetrated into all aspects of social life, such as navigation services, location push and associated search, and big data behavior. In this era, various information services derived from location information will shine, which will further highlight the importance of positioning technology. [0003] Currently, in the coverage application of the cell merging system, since a cell is composed of a baseband processing unit and multiple remote radio units, the coverage of each cell is continuous. The SRS (Sounding Reference Signal, Channel Sounding Reference Signal) signal also receives uplink SRS signals from t...

AI Technical Summary

Problems solved by technology

figure 1 A schematic diagram of pilot pollution is given, including terminal 103 and terminal 104, baseband processing unit 101 and baseband processing unit 102, terminal 103 and terminal 104 are in different cells, and the SRS resources allocated to terminal 103 and terminal 104 are the same, resulting in The baseband processing unit 101 has received the uplink SRS signal of the terminal 103 in this cell, and at the same time, has also received the uplink SRS signal of the terminal 104 in the neighboring cell, so the uplink SRS signal of the terminal 103 received by the baseband processing unit 101 has been interfered, causing the baseband The accuracy of subsequent signal processing by the processing unit using the uplink SRS signal is greatly reduced, so that it is impossible to accurately locate the terminal in the cell

Therefore, the mutually exclusive requirement of SRS resource allocation between adjacent cells must be met in order to avoid interference caused by the superposition of SRS signals in different cells. However, the current SRS resource configuration is mainly configured independently by each cell. This type of method mainly considers how to make full use of its own cell Therefore, it is impossible to achieve the purpose of mutually exclusive configuration of SRS between adjacent cells. Therefore, if the terminal in the cell is to be accurately positioned, how to realize the mutually exclusive configuration of SRS resources between adjacent cells is an urgent problem to be solved.

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