Telecom’s CDMA Wireless Network Coverage Performance Analysis And Optimization Design In Certain Place

Taking control of the CDMA network of China telecom, after several years of large-scale construction, has been improved greatly on the network coverage performanceAwhich have covered the urban city, the important township, the important traffic trunk road and the important tourism scenic area. In the city area and the main district in village,the CDMA wireless network could attain mostly equal level than the rival in overlay rate,but there is the poor coverage areas still in the city urban area, and the weak coverage areas in the rural roads. The rapid construction of urbanization in the city area, the diversity in the different geography of the village region,which have very great influence to the CDMA wireless network overlay function, that also were the important issues in the wireless CDMA network construction.The thesis systematically carries on analysis to the overlay problem in the telecommunication CDMA network,and carry on a research on how improved to overaly function adopts the method of theory analysis and engineering test etc, then carry on the analysis on the general overaly problem and the actual circumstance of the certain place together, and optimize the overaly problem orderly.Firstly the thesis describes the characteristics of CDMA technology, and analyzes the correlation of its technique characteristics and coverage function, and inquire into the concept and the process of optimize the CDMA network. Then the thesis analyzes the main factor that influence CDMA network optimization at the same time, study the reason that the main factor appears, carry on analysis on the reason why the type of problem appears and the result came out, put on the simple and effective solution means, for example: building base station, feed adjustment day hanging high, azimuth Angle etc.Then the thesis Induce this type of solution means in brief excellent design formula, make to work cushion for the excellent chemical engineering. then analyzes the coverage fuction about CDMA network in a place as the situation of the main factor appears, tally up the weakness and the problem of the CDMA network in a palce.According to the analysis results, the thesis carry on optimization design on the CDMA network of the certain place, puts forward the train of thought and method: building base station, feed adjustment day hanging high, azimuth Angle, inclination Angle and so on. Which optimize network structure, and finally analysis to evaluate optimization results through the road test and the simulation.