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Method and apparatus for detecting antenna-feed installation problem

A problem and azimuth technology, applied in the field of inspection of antenna feeder installation problems, can solve the problems of heavy workload, time and light influence, increase the workload of antenna feeder inspection, etc., and achieve the effect of reducing workload and improving work efficiency

Inactive Publication Date: 2008-03-05
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this method is a lot of work and is affected by time and light
[0008] From the above analysis, it can be seen that the antenna feeder inspection methods in the prior art have their own shortcomings, and the workload required is very large, which greatly increases the workload of the antenna feeder inspection

Method used

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  • Method and apparatus for detecting antenna-feed installation problem
  • Method and apparatus for detecting antenna-feed installation problem
  • Method and apparatus for detecting antenna-feed installation problem

Examples

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Embodiment Construction

[0041] Each base station in the network maintains a base station information table about its own information. The base station information table includes basic information pre-configured for the base station, such as the latitude and longitude of the base station, the cells included in the base station, the azimuth angle of each cell, and the orientation of each cell. Frequency PN offset and other information.

[0042] In the azimuth angle of the cell, the pilot of the cell should have a high SNR value. Therefore, by analyzing the SNR data of the pilot of the cell in the drive test data, the average value of the pilot with the largest value in each cell can be obtained. The azimuth angle of the signal-to-noise ratio is used as the estimated value of the azimuth angle of the cell, and then the antenna feeder installation problem is checked based on the estimated value.

[0043] Based on the above ideas, the present invention provides a method for checking antenna feeder install...

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Abstract

The invention provides a method of inspecting antenna feeder installation and apparatus therefor which is used for inspecting antenna feeder installation problems according to drive test data. The method comprises following steps: step A, according to each cell pilot frequency S / N in drive test data, the azimythal angle with maxium pilot frequency average S / N in each cell is obtained, and the azimythal angle is used as estimated value of the cell azimythal angle; step B, the antenna feeder installation problems are inspected according to the azimythal angle estimated value of each cell in a base station. The invention judges conditions of feeder installation sequence and transmission diversity of a plurality of cells connected to the same antenna without need of arriving under the base station or climbing to top of the antenna tower, reduces workload of engineering personnel.

Description

technical field [0001] The invention relates to the field of wireless communication applications, in particular to a method and device for checking antenna feeder installation problems in a Code Division Multiple Access (CDMA, Code Division Multiple Access) system. Background technique [0002] In a Code Division Multiple Access (CDMA, Code Division Multiple Access) system, a base station uses a PN sequence for modulation, and the PN sequences of different cells of the same base station have different PN offsets. The PN offset of the PN sequence can be reused, for example, two cells that are far enough away can use the PN sequence of the same PN offset. For the same cell in a multi-carrier frequency system, the PN offsets of different carrier frequencies are the same. At this time, a carrier sector can be distinguished by combining frequency points and PN offsets. During the drive test, the test terminal continuously searches the pilot channels contained in the active set, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/34H04B1/707H04B7/06
Inventor 刘贤正
Owner ZTE CORP
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