China Unicom BeiJing Mobile Network Emergency Communication Engineering Feasibility

With the WCDMA(Wideband Code Division Multiple Accsee) network technologies become more sophisticated, performance improvement and enhance the terminal, the terminal becoming more rational prices, growing demand for data services, the global WCDMA network has entered a stage of sound development, the number of users and revenues have shown rapid growth trend. Increasing the number of users require the better network coverage and a higher network capacity. Meanwhile, with the rapid development of China's national economy, a large number of urban renewal and new construction has been done, resulting in some areas face the original base address migration, inadequate capacity, limited coverage and other issues. If you want to solve the problem of rapid expansion within a short time and temporary support issues over an extended period, we must improve the mobile network emergency communication system.This paper studied the mobile network emergency communication system,the main works as follow:1,The paper analysises the experience of Beijing Branch of China Unicom mobile network emergency communication system used in the past and current network needs, classifies the emergency communication system according to different application environment and application requirements. 2,At the same time, according to the results of the analysis, compare a(?) analysis the system capacity, transmission means, power means access。3,According to the results of analysis and comparison, gives detailed construction program for different needs, different operating conditions, differe(?) transmission conditions.