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A method and system for coordinating co-channel interference based on power control

A co-channel interference and power control technology, applied in power management, wireless communication, electrical components, etc., can solve problems affecting user call quality, call drop, failure to establish normal calls, etc., achieve co-channel interference coordination, reduce co-channel interference Frequency interference, the effect of ensuring the quality of service

Inactive Publication Date: 2017-05-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These problems directly affect the user's call quality, and may even cause calls to be dropped or normal calls cannot be established

Method used

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  • A method and system for coordinating co-channel interference based on power control
  • A method and system for coordinating co-channel interference based on power control
  • A method and system for coordinating co-channel interference based on power control

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Embodiment Construction

[0036] The basic idea of ​​the present invention is to use CCP to calculate the maximum transmission power of each base station after assigning weights to each base station using the same frequency spectrum according to the service user information and / or business information of the base station; The minimum value of all maximum transmission powers and the maximum transmission power allowed by the base station itself is used as the maximum transmission power of the base station, and the base station is notified to work according to the selected maximum transmission power when using the spectrum.

[0037] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0038] In order to understand the present invention better, first introduce the network structure that the present invention applies, figure 1 A schematic structural diagram of the network used in the present invention, suc...

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PUM

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Abstract

Disclosed are a method and a system for coordinating co-channel interference based on power control. A central control point (CCP) allocates weights to base stations using the same band of spectrum according to information of service users and / or information of services subordinate to the base stations, and then calculates maximum transmit power of the base stations. The CCP selects a minimum value of all the maximum transmit power calculated for the base stations and maximum transmit power allowed for the base stations to serve as maximum transmit power of the base stations, and instructs the base stations to work at the selected maximum transmit power when using the spectrum. Through the present invention, the quality of services of high priority users can be ensured, and meanwhile, downlink interference produced by different base stations when using the same band of spectrum can be controlled at a reasonable level, thereby coordinating co-channel interference between cells and reducing co-channel interference between cells controlled by the base stations.

Description

technical field [0001] The invention relates to co-frequency interference coordination technology in the field of wireless communication, in particular to a method and system for coordinating co-frequency interference based on power control. Background technique [0002] The fixed allocation and dynamic use of the spectrum lead to a large amount of spectrum not being fully utilized. Under the premise of ensuring that the licensed users are not interfered, the use of cognitive radio technology can improve the utilization rate of the spectrum, and efficiently and flexibly use the spectrum that has not been used in a certain time and space area. The spectrum used by the primary system, ie the licensed system. [0003] In the current research on cognitive radio technology, the secondary system, that is, the cognitive radio system, can obtain the available spectrum resource information of the primary system by accessing the authorized service database. After obtaining the spectru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/24H04W52/36
CPCH04W52/143H04W52/367H04W52/386H04W52/40
Inventor 苗婷李岩周栋李峰刘星任龙涛岳天恒
Owner ZTE CORP