Research And Application About Optimization Technologies Of CDMA Mobile Network

Since the 1990s of the beginning 20th. The rapid development of mobile communications, in particular the Code Division Multiple Access (CDMA) technology to its system capacity and operational quality, safety and reliability of the advantages of much attention, the world Nearly 50 countries have adopted CDMA technology to provide telecommunications services .CDMA is an advanced digital communications technology, has experienced from narrowband to broadband CDMA DCMA evolution, has become the third generation mobile communication system over the smooth way. The end of 1999, the International Telecommunication Union completed the third generation of wireless mobile communication system interface the development of technical specifications, mobile communication system into the development and application of a substantive stage.Network optimization, the system is based on the actual performance, the system's actual performance, the system analysis, based on the analysis of the system through the adjustment of parameters, the system performance gradually improved, the existing system configuration to provide optimal Service quality, and that is the best coverage, with the signal strength, the best call quality and the lowest rate Diaohua.Network optimization is in full knowledge of the system is running under the premise of the situation, through various technical means, the irrational part of the system to make the necessary adjustments, allowing the system to achieve the best running process. 10 mobile communication system from its location of the user is not fixed, wireless signal of vulnerability to environmental impact and optimize it is particularly important. CDMA because it is necessary to provide variable rate of high-speed data and multimedia integrated services, but also consider the compatibility and network scalability, and GSM is compared to the complexity of its network has greatly increased. In order to better manage and use the Internet to maximize the utilization of improved spectrum, CDMA district respiratory system, since the interference, and so many new technologies and features, all GSM and very different from those of the corresponding CDMA network planning and optimization and also Different from before, the need to consider more factors, has greatly increased the complexity of the network planning to do when these factors must be considered.This paper describes the development of the mobile communications and CDMA communication technologies, the CDMA network optimization of background and significance of this paper, pointed out that the CDMA network in the face of major problems and solve some of the basic method. From the theoretical basis of CDMA technology was discussed, the focus on the CDMA network optimization technology. Also introduced a network optimization process often encountered the problem of combining CDMA wireless network optimization technology on the network fault analysis and optimization approach and made some adjustments and optimize the configuration parameters of the proposal, in a certain area Changchun City on a Network testing and related data collection, and so on the network before and after the optimization of quality and performance analysis.This paper in the following areas has made some contribution to:1, gave an overview of CDMA wireless network optimization methods and optimization process. Network optimization is a network throughout the entire process of the long-term development projects, while it is a systematic project, which includes a series of optimization, including coverage optimization, Traffic optimization, equipment optimization, Signal Analysis interference and optimize the use of funds And so on.2, on the CDMA wireless network fault analysis method, for Diaohua, access failure, soft switch failures and misuse of high frame rate, and so typical of a wireless network fault specific analysis.3, combining the optimization of network engineering practice, to a certain area Changchun City, a network testing and related data collection, and so on the network quality and performance analysis, the development programme and make adjustments to optimize the report. These networks work to optimize the allocation of resources, improve network operating environment and improve the performance of the network, all have important practical significance.Cause of my limited skills and time, we certainly there are many inadequate, need to be further study:1, CDMA and 3 G network of mutual switch2, CDMA/GSM900M/GSM1800M systems Analysis interference3, focus on analysis voice and data services.