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A method and device for locating interference sources

A technology of interference source and interference cell, applied in the field of wireless communication, can solve problems such as reducing complexity, and achieve the effect of improving calculation speed and reducing positioning complexity

Active Publication Date: 2021-07-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the technical solution provided according to the embodiment of the present invention is to reduce the complexity of the system when locating the interference source

Method used

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  • A method and device for locating interference sources
  • A method and device for locating interference sources
  • A method and device for locating interference sources

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Embodiment Construction

[0046] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0047] figure 2 is a flow chart of interference source location provided by an embodiment of the present invention, such as figure 2 As shown, the steps include:

[0048]Step S101: All cells perform frequency offset compensation on the subcarriers used to carry the interference source detection sequence transmitted and received by all cells according to the system reference subcarriers. Specifically, all cells perform frequency offset compensation on the subcarriers used to carry the interference source detection sequence transmitted by them according to the system reference subcarrier, so that the subcarriers used to carry the interference source dete...

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Abstract

The present invention discloses a method and device for locating interference sources, which relate to the technical field of wireless communication. The method includes: all cells transmit and receive subcarriers used to carry interference source detection sequences according to system reference subcarriers. Frequency offset compensation; each cell uses the local interference source detection sequence generated locally to perform correlation processing on the interference source detection sequence carried by the subcarrier it receives; the result of the correlation processing performed by each cell is correlation When , the cell that sends the interference source detection sequence is determined as the interference source. Through the embodiment of the present invention, when there is aliasing of multiple different bandwidths in the system, it is not necessary to traverse and detect various aliasing scenarios, and only need to detect related possible sequences in the aliasing bandwidth to complete the positioning of the interfering cell, which can Reduce positioning complexity and improve calculation speed.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for locating an interference source. Background technique [0002] For a Time Division Long Term Evolution (TD-LTE) system, base stations are required to maintain strict time synchronization, and a global positioning system (Global Positioning System, GPS) synchronization method is generally used to ensure timing synchronization between base stations. Since the network is deployed in the same frequency coverage mode, there is mutual interference between adjacent cells. Since the uplink and downlink transmissions of the TD-LTE system share frequency, in addition to the traditional inter-cell interference, there is also the situation that the downlink signal of the remote base station interferes with the uplink signal of the target cell in the TD-LTE system. [0003] Due to the propagation characteristics of electromagnetic waves, in some...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/719H04L27/26H04W64/00
CPCH04B1/719H04L27/2691H04W64/00G01S5/011G01S5/02H04J11/0056
Inventor 陈海红秦洪峰王雯芳曾召华
Owner ZTE CORP
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