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Interference suppression method

A technology for interference suppression and strong interference, applied in communication between multiple stations, network traffic/resource management, electrical components, etc., can solve problems such as system performance degradation

Inactive Publication Date: 2008-10-08
ZTE CORP
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a method for suppressing same-frequency interference in a wireless communication system, aiming at the problem of system performance degradation caused by inter-cell interference in a same-frequency network in a wireless communication system, and proposes a method for suppressing interference Related solutions aim to reduce inter-cell interference, increase coverage and traffic, and improve system spectral efficiency through effective interference suppression technology

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Embodiment Construction

[0056] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] In order to improve the spectrum efficiency of the wireless mobile communication system and solve the interference problem existing in the same-frequency networking, this embodiment proposes a method for suppressing the same-frequency interference in the wireless communication system. The interference suppression method is applied to a wireless Communication system, a typical wireless communication system can include the following parts:

[0058] (1) At least two base stations, each of which sends control information (including scheduling information) within the corresponding cell range;

[0059] (2) There is at least one terminal communicating with the cell base station in each cell;

[0060] (3) The frequency deployment of two adjacent base stations is the same, and co-frequency interference exists between adjacent cells.

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Abstract

The invention discloses an interference suppression method, interacting the interference suppression information by each cell base station and a main control module; the main control module obtains the main interference terminal information of each cell; the main control module aggregates the interference terminal information of each cell, or can add loading information, recommends an interference suppression dispatching method, sends to the corresponding cell base station; each cell base station combines with the dispatching requirement of the cell to dispatch according to the interference suppression dispatching method recommended by the main control module, to reach the aim of restraining or eliminating synchronous interference. The interference suppression method provided by the invention can reduce the co-channel interference in the wireless communication system effectively, improve the spectrum efficiency and further increase system coverage and flow rate.

Description

technical field [0001] The invention relates to a co-channel interference suppression method in a wireless communication system, in particular to a co-channel interference suppression method in an OFDMA (Orthogonal Frequency Division Multiplexing) system. Background technique [0002] Interference in wireless and mobile communication systems mainly includes co-channel interference, adjacent frequency interference, out-of-band interference, and intermodulation interference. The co-frequency interference of the system means that some or all cells in the network use the same frequency point for data transmission, and there will be mutual signal interference between the cells. Co-channel interference can generally be divided into intra-cell interference, inter-cell interference, interference between different communication standards, interference between different operators, and interference caused by system equipment. [0003] Interference in the cell mainly includes multipath...

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Application Information

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IPC IPC(8): H04Q7/38H04B7/26H04W28/16
CPCH04W28/16H04W72/082H04W72/541
Inventor 蔡思东刘颖
Owner ZTE CORP
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