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Method, base station and system for reducing interference of adjacent cells of wireless cellular system

A technology of adjacent cell interference and cellular system, which is applied in the transmission system, radio/inductive link selection arrangement, communication between multiple stations, etc., can solve the problems of cellular system adjacent cell interference, etc., to reduce interference and increase system The effect of capacity

Inactive Publication Date: 2007-11-28
方正通信技术有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of the interference of the adjacent cells of the cellular system, reduce the ACI, and improve the signal-to-interference ratio

Method used

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  • Method, base station and system for reducing interference of adjacent cells of wireless cellular system
  • Method, base station and system for reducing interference of adjacent cells of wireless cellular system
  • Method, base station and system for reducing interference of adjacent cells of wireless cellular system

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Embodiment Construction

[0028] The method for reducing the interference of adjacent cells of the cellular system, and the application of the method, base station and system of the present invention will be described in detail below.

[0029] The method provided by the present invention plans cellular cells into multiple layers, and for mobile stations located in the inner layer, the base station adopts low-power transmission; for mobile stations located in the outer layer, the base station adopts high-power transmission. When the mobile station moves from the inner layer to the outer layer or from the outer layer to the inner layer, the base station can switch its transmission power. The function of this method is similar to that of forward power control, but it avoids the complex control algorithm of forward power control and the problem of increasing the received power level of the target user and also increasing the interference to other users. The invention can reduce the interference of neighbor...

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Abstract

The invention discloses a reducing method, base station and system of adjacent area interference of honeycomb system, which comprises the following steps: 1) obtaining the distance of mobile table base station; 2) dividing multiple mobile tables to different layers of area according to the distance of base station; 3) setting different power gain factor for the mobile table at different area layers; 4) utilizing power gain factor to modulate the gain of business channel; transmitting data to corresponding mobile table. The invention satisfies SIR need of data transmission, which reduces ACI.

Description

technical field [0001] The invention relates to a method, a base station and a system for reducing the interference of adjacent cells of a wireless cellular system, and belongs to the technical field of mobile communication. Background of the invention [0002] Since Bell Labs proposed the concept of cellular, the wireless mobile communication system has achieved unprecedented rapid development. With the continuous development of technology, the realization of personal mobile communication system (PCS) has become more and more possible. The demand of PCS has profoundly promoted the progress of wireless mobile communication system technology. Up to now, the wireless communication system has entered the 3G era, and the research on 4G is gradually on track. From the perspective of multiple access methods, mobile communication systems have experienced FDMA (Frequency Division Multiple Access), TDMA (Time Division Multiple Access) and CDMA (Code Division Multiple Access). Among...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04B1/10H04B15/00H04Q7/36
Inventor 陈实如
Owner 方正通信技术有限公司
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