A method for selecting co-frequency interfering cells in an n-frequency point networking system

Abstract

The present invention provides a method for selecting same-frequency interfering cells in an N-frequency point networking system, which includes the following steps: a terminal receives a broadcast message or a measurement control message sent by a network end, and stores a list of same-frequency cells therein and the different-frequency cell list; the terminal compares the cell parameter identifiers in the same-frequency cell list and the different-frequency cell list, and uses the corresponding different-frequency cell The measurement result of the corresponding main frequency point in the frequency cell list is used as the measurement result of the same-frequency interference cell; thereby reducing the possibility of missed selection of the same-frequency interference cell caused by measurement inaccuracy caused by the lack of pilot signals at the same-frequency auxiliary frequency point probability. When the same-frequency measurement and different-frequency measurement are configured at the same time on the network side, because the measurement of the secondary frequency points in the same-frequency cell list due to the same-frequency de-interference algorithm is reduced, the workload of the terminal measurement is reduced, and more accurate Select co-frequency interfering cells.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to removing co-frequency interference signals, specifically a method for selecting co-frequency interfering cells in a communication system using N-frequency point networking. Background technique [0002] In a mobile communication system, if the signals of other users working on the same frequency point reach the receiver of the current user with higher power, it will cause great interference to the current user signal, thus affecting the demodulation performance of the current user signal. In order to minimize such co-channel interference, the receiver generally uses an algorithm for removing co-channel interference signals to improve the demodulation performance of the receiver. A premise of this algorithm is to obtain the specific parameters of co-channel interfering cells and measure the signal power of these cells. The current mobile communication system generally informs ...

AI Technical Summary

Problems solved by technology

[0015] The purpose of the present invention is to provide a method for selecting a same-frequency interference cell in an N-frequency point networking system to overcome the inaccurate measurement of the same-frequency interference cell in the prior art because the frequency point is a secondary frequency point. The problem of missed selection caused by the signal of the cell, so as to provide more accurate input for the receiver's algorithm for removing co-channel interference

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