Implementation method and device for avoiding the interference between the cells

An implementation method and inter-cell technology, applied in multi-frequency code systems, signal channels, etc., to achieve low implementation complexity and improve the effect of signal-to-interference ratio

Active Publication Date: 2011-02-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] In short, there are still some problems in the implementation of the above-mentioned prior art, making it impossible to effectively avoid possible interference in the wireless communication system

Method used

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  • Implementation method and device for avoiding the interference between the cells
  • Implementation method and device for avoiding the interference between the cells
  • Implementation method and device for avoiding the interference between the cells

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Experimental program
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Embodiment Construction

[0075] The present invention is realized on the basis of two implementation schemes for avoiding interference based on interference coordination and interference elimination. In the process of realization, dynamic adjustment of frequency resources occupied by interference coordination and interference elimination is realized, so as to effectively support different system environments and various business requirements.

[0076] In the scheme of combining interference coordination and interference elimination provided by the present invention, different frequency resource allocation methods can be used to realize dynamic adjustment of the frequency resources occupied by interference coordination and interference elimination; corresponding frequency resources can be allocated in advance, or Allocation of frequency resources occupied by interference elimination and interference coordination can be completed when the service load changes and meets predetermined conditions.

[0077]...

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Abstract

The related method preventing subzone interference comprises: allocating corresponding frequency resource for subzone edge users applying interference coordination and interference elimination respectively, exactly, the frequency resource can be allocated in advance, or allocated when system business loading changes and satisfies a certain condition; then, adjusting the frequency resource for eliminating and coordinating interference. This invention makes full of two ways for avoiding interference, adds system flexibility, and supports wide business request.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a technology for eliminating inter-cell interference. Background technique [0002] At present, multi-carrier-based OFDM (Orthogonal Frequency Division Multiplexing) technology in wireless communication systems has attracted more and more attention from the industry. The basic idea of ​​OFDM technology is to divide the time-frequency resources of the wireless communication system into several orthogonal narrowband sub-channels in the frequency domain, and high-speed data streams are transmitted in parallel on each sub-channel through serial-to-parallel conversion. Due to the narrowband characteristics of the sub-channels, the influence of multipath can be overcome and the orthogonality between the sub-channels can be maintained, thereby ensuring that the interference between users in the cell is very small. [0003] The advantage of the OFDM technology is that it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04L5/02
Inventor 杜高科沈嘉
Owner HUAWEI TECH CO LTD
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