Method and system for performing wireless signal coverage analysis

Abstract

The invention provides a method and a system for performing wireless signal coverage analysis. An acquisition server downloads a CHR file and analyzes the CHR file into a CHR plaintext file, extracts data field information, required for weak coverage and pilot pollution analysis by an analysis server, from the CHR plaintext file, and converts the data field information into a format which can be identified by the analysis server; the analysis server calculates the longitude and latitude of a terminal corresponding to each call record according to the CHR plaintext file and base station information; and the analysis server rasterizes a vector map, determines the position of each call terminal according to the longitude and latitude of the terminal, groups the terminals into grids, and analyzes the pilot strength, the Ec / Io and the pilot number when the call of a terminal in each grid is accessed so as to determine whether a corresponding area in the grid is a weak coverage and / or pilot pollution area or not. By adopting the method and the system of the invention, the problems of complicated artificial analysis steps, heavy workload, low efficiency, incapability of geographic display, and the like in CDR analysis work are solved.

Description

technical field [0001] The invention relates to the field of data analysis of mobile communication systems, in particular to a method and system for wireless signal coverage analysis. Background technique [0002] CDR (Call Detail Record, call detail record data) is the user call detail record data automatically generated by the BSC (Base Station Controller, base station controller) in the wireless communication BSS (Base Station Subsystem, base station subsystem). Important information such as wireless signal status, base station resource occupancy, business type, frame error rate and other important information during a call. These information are classified and recorded by more than 600 fields. Wireless network operators can conduct combined analysis based on these fields to find out the user Key information required for network optimization such as the voice quality of a call, the used sector, and wireless signal strength, and accurately find weak coverage and pilot poll...

AI Technical Summary

Problems solved by technology

[0008] Compared with method 1, this method can save the steps of extracting the original CDR and decoding, but the existing network optimization platform does not have the function of automatic screening and analysis of pilot pollution and weak coverage fields, and the calculated user access latitude and longitude The error is large, and it cannot guide the specific positioning and solution of the problem. It is not suitable for areas with complex terrain, especially urban areas.

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