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Method and apparatus for confirming cell coverage area through common signal channel

A cell coverage and common channel technology, applied in the field of communication, can solve the problem of poor cell coverage accuracy

Inactive Publication Date: 2009-02-18
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method and device for determining the coverage of a cell through a public channel to solve the problem of poor accuracy in determining the coverage of a cell in the prior art

Method used

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  • Method and apparatus for confirming cell coverage area through common signal channel
  • Method and apparatus for confirming cell coverage area through common signal channel
  • Method and apparatus for confirming cell coverage area through common signal channel

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Embodiment Construction

[0021] In this embodiment of the present invention, the link simulation is performed according to the simulation scene provided by the system simulation, the corresponding relationship between the block error rate and the demodulation threshold of different scenes is obtained, and the demodulation threshold corresponding to the simulation scene is determined according to the set block error rate. For the demodulation threshold, the weighted least squares algorithm is used to obtain the interference cancellation factor of the joint detection of the local cell and the interference cancellation factor of the joint detection of the adjacent cells; and the total interference power of the adjacent cells is determined through system simulation; according to the joint detection interference cancellation factor of the local cell Jointly detect the interference cancellation factor, the demodulation threshold, the ratio of the total interference power of the adjacent cell to the total sign...

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Abstract

The invention discloses a method and apparatus for determining district coverage through a common channel, which solves the problem that the district coverage accuracy determined by the existing technique is bad. The method includes the following steps of determining the present district association detection interference elimination factor and the adjacent district association detection interference elimination factor based on a demodulation threshold of the present district; determining the equivalent path loss based on the present district association detection interference elimination factor, the adjacent district association detection interference elimination factor, the demodulation threshold, the ratio of the interference total power of the adjacent district and the signal total power of the present district, the signal total power of the present district and the signal sending power of a main common control physical channel; and determining the district coverage based on the equivalent path loss. The invention is used to determine district coverage, by means of the technical scheme provided by the invention, the district coverage can be determined more accurately, and reference performance is provided for network plan and network majorization.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and an apparatus for determining the coverage of a cell through a common channel. Background technique [0002] Code division multiple access (CDMA, Code division multiple access) is a self-interference system, the signal of each user is interference to other users, even if the joint detection algorithm is used, the interference of MAI and ISI of the system itself It is impossible to completely eliminate it. After the introduction of the same-frequency algorithm, the interference suppression capability of the joint detection for the local cell and neighboring cells is also very different. For the coverage of the cell, the path loss is generally calculated through the link budget, so as to obtain the coverage of the cell. [0003] At present, the link budget method of the common channel follows the link budget method of the traffic channel. On the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/707H04B17/00H04B7/26H04B1/7105H04W16/18H04W24/08
Inventor 褚红发蔡月民何剑沈洁
Owner CHINA ACAD OF TELECOMM TECH
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