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Method and system for inter-cell eliminating interference

A technology that eliminates interference and inter-cell technology, applied in the field of communication, can solve problems affecting the efficiency of system frequency usage, reduce mutual interference, and improve communication quality

Active Publication Date: 2007-09-26
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and system for eliminating interference between cells to solve the problem of using partial frequency reuse technology when eliminating inter-cell interference in the prior art The problem of frequency utilization efficiency of the whole system

Method used

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  • Method and system for inter-cell eliminating interference

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Embodiment Construction

[0038] In a cell covered by a base station Node B, for users who are closer to the serving base station and have better channel quality, both the base station and the user equipment can use lower transmit power. The interference is small; for users who are far away from the serving base station or have poor channel quality, both the base station and the user equipment need to use higher transmission power. At this time, the same-frequency interference to surrounding adjacent cells is relatively large.

[0039] In order to reduce the interference between adjacent cells and improve the reuse rate of the system frequency, cell users are divided into cell center users and cell edge users in the present invention. For adjacent cells, cell edge users in different cells Users use different time slots to transmit data, that is, cell edge users of adjacent cells stagger each other in time slots.

[0040] For the discrimination between the cell center user and the cell edge user in the ...

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Abstract

The disclosed eliminating interference method comprises: BS divides local subzone into the central user and edge user according to UE signal; BS uses time slot appointed in configuration information to transmit data with both the center and edge users, wherein, the edge users of different subzone apply different time slot.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for eliminating interference between cells. Background technique [0002] Existing commercial wireless communication systems can support uplink and downlink multi-user access. Uplink means that the terminal sends data to the base station, and downlink means that the base station sends data to the terminal. Different users can communicate with the base station at the same time, and the data of different users are multiplexed on one link by means of frequency division, time division or code division to ensure that the channels used by them are orthogonal to each other, that is to say, there will be no communication between users. interfere with each other. [0003] Due to the limited coverage of each base station, in order to allow the system to accommodate more users, the wireless communication coverage area is usually divided into individual cells, usually ...

Claims

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Application Information

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IPC IPC(8): H04Q7/36H04L27/26H04W16/14H04W72/04
Inventor 阮卫杜颖钢李斌
Owner XFUSION DIGITAL TECH CO LTD
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