Method and base station for lowering interference between cells in uplink cell communication system

A technology of inter-cell interference and cellular system, which is applied in the field of reducing inter-cell interference, can solve the problems of low burst interference suppression capability and large communication signaling overhead, and achieves low inter-base station communication signaling overhead, good effect, and a control method Flexible and diverse effects

Inactive Publication Date: 2009-03-25
SHARP KK
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Problems solved by technology

[0012] The purpose of the present invention is to provide a method for reducing inter-cell interference in an uplink cellular system, aiming at the problem that the capability of suppressing burst interference is low in the prior art, or the communication signaling overhead is relatively large under static or semi-static interference conditions. Method and base station using the method

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  • Method and base station for lowering interference between cells in uplink cell communication system
  • Method and base station for lowering interference between cells in uplink cell communication system
  • Method and base station for lowering interference between cells in uplink cell communication system

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[0041] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and unnecessary details and functions for the present invention will be omitted during the description to avoid confusing the understanding of the present invention.

[0042] In order to clarify and describe the implementation steps of the present invention in detail, a specific embodiment of the present invention is given below, which is applicable to an uplink LTE cellular communication system. It should be noted that the present invention is not limited to this application, but is applicable to other communication systems.

[0043] Referring to FIG. 1, a schematic diagram of a multi-cell cellular communication system is shown. Cellular systems divide the service coverage area into contiguous wireless coverage areas, ie cells. In FIG. 1 , a cell is schematically depicted as a regular hexagon, and the entire service area is composed of cell...

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Abstract

The invention provides a method for reducing inter-cell interference in an upper cellular system and a base station applying the method. Firstly, a resource coordination method is executed among the base stations to divide recourse into a resource block subclass; then an interference overload indication method is determined among the base stations, and a disturbed threshold is determined for the resource; then, the base stations carry out the interference overload indication method based on the resource block subclass later; and when receiving an interference overload indication, the base station carries out control strategy to user equipment which uses the resource block subclass recently according to the nature of the interference overload indication and the resource block subclass, so as to achieve the purpose of retraining the interference. The control strategy comprises reduced power, resource usage restriction, transposition of the user equipment in the resource coordination method, refused interference overload indication, adjusted disturbed threshed, adjusted resource coordination method and the like. The invention effectively reduces the intra-cell interference, and has the advantages of less communication signaling cost among the base stations, stronger interference suppression pertinence and flexible, various control methods and the like.

Description

technical field [0001] The present invention relates to a method for reducing co-channel interference in the field of communication technology and a base station using the method, more specifically, to a method for reducing inter-cell interference applied in an uplink cellular system and a base station using the method. Background technique [0002] 3GPP (Third Generation Partnership Project) organization is an international organization in the field of mobile communication, and she plays an important role in the standardization of 3G cellular communication technology. In the 3GPP version 6 standard, HSUPA (High Speed ​​Uplink Packet Access) technology is introduced, which is based on OFDM (Orthogonal Frequency Division Multiplexing) technology, and uses fast uplink scheduling technology in the base station, so that different user equipment When sending data, different spectrum resources are used. While formulating HSUPA-related standards, 3GPP began to design EUTRA (Evolve...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/36H04Q7/30H04B1/707
Inventor 丁铭刘仁茂颜重光上村克成梁永明陈晨
Owner SHARP KK
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