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Power adjustment method, device and system

A power adjustment and adjustment device technology, applied in power management, wireless communication, electrical components, etc., can solve the problems of inability to know the interference source, co-frequency adjacent area interference, weak coverage, etc., to avoid excessive adjustment problems, avoid statistical Inaccuracy, the effect of improving overall performance

Active Publication Date: 2014-11-26
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current downlink power adjustment technology cannot effectively solve the coverage and interference problems, and sometimes even worsens interference or coverage holes, causing coverage and interference to fail to converge
For example, when it detects that the strength of the downlink received signal is weak, it is considered that there is a weak coverage phenomenon. When there is interference, it is impossible to know where the interference source is, and it is impossible to notify the interference source to reduce the power to reduce interference to itself

Method used

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  • Power adjustment method, device and system
  • Power adjustment method, device and system
  • Power adjustment method, device and system

Examples

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Embodiment 1

[0035] Such as figure 1 As shown, in the first embodiment, the processing procedure of the home base station is taken as an example to illustrate the power adjustment method of the present invention.

[0036] Such as figure 1 As shown, the processing procedure of the home base station includes the following steps:

[0037] S110 Femtocells count the coverage information of the current cell and neighboring cells on the same frequency, and count the interference index of the current cell; the coverage information includes weak coverage rate and over coverage rate;

[0038] The S120 Femtocell uploads the weak coverage rate and over coverage rate of the current cell and neighboring cells on the same frequency and the interference index of the current cell to the centralized controller;

[0039] S130 The home base station receives the power adjustment information returned by the centralized controller according to the weak coverage rate and the over coverage rate and the interference index; ...

Embodiment 2

[0058] Such as figure 2 As shown, the second embodiment uses the processing process of the centralized controller as an example to illustrate the power adjustment method of the present invention.

[0059] Such as figure 2 As shown, the processing process of the centralized controller includes the following steps:

[0060] S210 The centralized controller receives the coverage information of the current cell corresponding to the home base station and neighboring cells of the same frequency and the interference index of the cell uploaded by the home base station; the coverage information includes weak coverage rate and over coverage rate;

[0061] S220 The centralized controller generates power adjustment information according to the weak coverage rate and the over coverage rate and the interference index, and the centralized controller sends the power adjustment information to the home base station.

[0062] According to the above method, the centralized controller can periodically que...

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Abstract

The invention discloses a power adjustment method, device and system. The method comprises the following steps that femtocells count coverage information of a current cell and a same-frequency adjacent cell and count interference indexes of the current cell, wherein the coverage information comprises the weak-coverage rate and the over-coverage rate; the femtocells upload the weak-coverage rate and the over-coverage rate of the current cell and the same-frequency adjacent cell and the interference indexes of the current cell to an integrated controller; the femtocells receive power adjustment information returned by the integrated controller according to the weak-coverage rate, the over-coverage rate and the interference indexes and adjust transmission power of itself according to the power adjustment information. According to the power adjustment method, device and system, comprehensive consideration is given to the coverage information and the interference information of the femtocells, the adjustment of the transmission power of all the femtocells is determined in an integrated mode through the integrated controller, in this way, networks of the femtocells can achieve a compromise between coverage and interference, and the overall performance of the networks is effectively improved.

Description

【Technical Field】 [0001] The present invention relates to the field of mobile communication technology, in particular to a power adjustment method, device and system. 【Background technique】 [0002] With the widespread application of the home base station system, some new technical problems have also arisen, among which the problem of interference between base stations is an important problem that limits the large-scale networking of home base stations. [0003] Power adjustment is an important strategy to avoid interference, and can have a significant impact on network performance. However, if the downlink power is set too large, it will cause greater interference to the surrounding co-frequency neighboring areas, and if it is set too small, it will cause coverage holes. Therefore, how to compromise interference and coverage is a major issue that needs to be considered for power adjustment. The current downlink power adjustment technology cannot effectively solve the coverage an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24
Inventor 覃华忠罗娜
Owner COMBA TELECOM SYST CHINA LTD
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