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Method and device for analyzing wireless network interference

A wireless network, interference map technology, applied in image analysis, image data processing, transmission monitoring and other directions, can solve the problems of interference, judgment, and positioning and troubleshooting methods, accuracy, efficiency, and lack of inspection.

Active Publication Date: 2014-03-26
BOCO INTER TELECOM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1. There is a lack of effective classification, judgment and investigation methods for interference caused by multiple reasons;
[0009] 2. Lack of a more comprehensive and systematic interference cause location and investigation system;
[0010] 3. The accuracy and efficiency of the existing various judgments and positioning and screening methods vary

Method used

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  • Method and device for analyzing wireless network interference
  • Method and device for analyzing wireless network interference
  • Method and device for analyzing wireless network interference

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] figure 2 It is a flow chart of a method for wireless network interference analysis provided by Embodiment 1 of the present invention, as shown in figure 2 As shown, the method includes the following steps:

[0118] S101. Acquire an original frequency allocation support system frequency allocation support system analysis image. The full name of the frequency allocation support system analysis image is: frequency allocation support system analysis image, which is an auxiliary analysis tool for frequency optimization provided by Ericsson, and the frequency allocation support system analysis image is obtained from this software system. The present invention uses this tool to measure the mean value of the uplink interference of each frequency point in the uplink working frequency band, and generates an interference image for subsequent analysis. Huawei also has the same type of tool, but the naming is different. The frequency allocation support system analysis image is ...

Embodiment 2

[0178] Figure 4-Figure 13 It is the method for making various interference filters and standard interference graphs in Embodiment 2 of the present invention.

[0179] Figure 4-Figure 5i It is the characteristic diagram and standard interference diagram of code division multiple access CDMA interference, including:

[0180] Such as Figure 4 As shown, when the performance of the CDMA power amplifier filter is poor, there will be spurious interference falling into the GSM uplink working frequency band, which is commonly known as the tailing phenomenon, and its characteristic is that the spurious interference mainly falls on the GSM uplink 890-896M In the left and right uplink frequency bands, that is, within the GSM uplink frequency points 0-30, the following low-pass filtering algorithm is used to remove irrelevant signals:

[0181] S i = f ...

Embodiment 3

[0207] Figure 14 Embodiment 3 of the present invention provides a wireless network interference analysis device.

[0208] Such as Figure 14 As shown, the device includes:

[0209] The image acquisition unit is configured to acquire the analysis image of the frequency allocation support system of the original frequency allocation support system.

[0210] The filter unit is configured to perform N times of interference feature highlighting processing on the original frequency allocation support system analysis images to obtain corresponding N processed frequency allocation support system analysis images, where N is a positive integer. The filter unit includes: code division multiple access CMAD interference low-pass filter, digital optical fiber radio frequency remote unit GRRU interference sharpening filter, repeater interference frequency selection filter, strong external interference smoothing filter and intermodulation interference At least two or more high-pass filters...

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Abstract

The invention discloses a method for analyzing wireless network interference. The method comprises the following steps: acquiring a frequency distribution support system analysis image of an original frequency distribution support system; performing interference characteristic peak processing on the original frequency distribution support system analysis image for N times respectively to acquire N corresponding processed frequency distribution support system analysis images, wherein N is a positive integral; extracting each processed frequency distribution support system analysis image edge through the edge algorithm respectively to generate a linear graph corresponding to each processed frequency distribution support system analysis image edge; performing matching operation on the linear graph of each generated frequency distribution support system analysis image edge and N standard interference images to acquire post-match results; determining the interference type according to the post-match results. Through the adoption of the method disclosed by the invention, the purpose of fast and automatic positioning of the interference type is realized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for analyzing wireless network interference. Background technique [0002] GSM (Global System For Mobile Communications Global System for Mobile Communications) system interference has always been one of the main factors affecting the quality of GSM networks. The intensity of network uplink interference noise in cities has increased significantly. In some areas where uplink interference is relatively serious, network indicators such as uplink interference intensity and uplink call quality have deteriorated significantly, which has seriously affected user perception. Therefore, troubleshooting and rectifying uplink interference in GSM network cells has become an important part of network quality improvement work. According to the causes of uplink interference, the uplink interference experienced by cells in current mature networks is as...

Claims

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Application Information

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IPC IPC(8): G06T7/00H04B17/00H04B17/345
Inventor 唐焯宜钟锦庆吴宝庭吴荣广吴兵黄政力林纲胡志东曾伟超李昭明曾昭展陆远干
Owner BOCO INTER TELECOM