Abstract:

In mobile network, antenna azimuth angle and cell coverage occurring deviation are the critical factors on the quality of mobile communication. The traditional check methods are measured by manpower which costs much time and resource. This paper presents an innovative method on azimuth angle automatic calculation and cell coverage analysis. The methods include 3 parts. The innovative calculation algorithm on deviation of antenna azimuth angle is based on real mobile station data collected in OMC system. The cell coverage analysis algorithm considers multiple factors （signal level distribution, sampling points distribution, category of interferences）to solve the difficulty on recognition of cell coverage differences. The calculation and analysis results are presented in map based on GIS platform. Compared with traditional methods, this new method has several advantages: intelligence, low cost, high precision. Further more, this paper presents the system design based on this method. The designed system has been deployed in real mobile network and gain good effects

Key words: antenna azimuth angle, cell coverage analysis, C/I（carry/interference）, sampling point distribution