Research On The MGW Of CDMA2000

Code Division Multiple Access (CDMA) communications technology is based on spread spectrum communication. In the 40's, on the application of spread spectrum communication military communication played the role of anti-interference, until the late 70s it was suggested that the spread spectrum communication to use for cellular mobile communication system. May 2008, China Telecom bought China Unicom's CDMA network resources and user resources, and in October launched CDMA mobile network operator.The structure of Unicom's CDMA can not satisfy user demand for high-speed data services, After China Telecom take over Unicom's CDMA, the first face is how to upgrade the net from only supporting lx data service to EVDO network, which by the 2G communication network upgrade to 3G, EVDO re1.0 version will reach a rate of 2.4Mbps and when it upgrade to rev.A version will reach a rate of 3.1Mbps. To support EVDO, in addition to increasing the base station, the core network needs all to be built new, smooth and safe transition is a necessary condition for network upgrade.Sichuan Telecom took over the CDMA network, the core network of the province had to replace the original format of the 2G core network equipment in support of MSC to replace the 3G standard MSCe, MGW equipment, the old BSC all of the original replaced by a new BSC, and use all the original BTS, the frst phase of the project added 120% BTS.For smooth transition from old CDMA network to new net, The project of Sichuan Province is divided into four stages, the independent period, test period, the new BSC operation period, the new CDMA net operating period, The project took six months to be fully operational, at last the network upgrade is smooth and security.This article will explore the basic principles, network architecture, data configuration processes, calculation of bearing capacity of the MGW, We select the Mianyang City, Sichuan Province, on the CDMA network to start the practice of MGW, the purpose of high-quality, efficient building CDMA core network.Through the study of the subject, we have the process of how to build and deploy the data of MGW, accumulate experience in network construction, provided specific cases and method of operation for the future network construction and expansion.MGW data configuration has adopted the view script configuration and data import configuration by two methods, and ultimately the same function, view configuration is divided into physical configuration, bureau configuration, the 7th data configuration, SIGTRAN configuration steps, the script will need all kinds of configuration information be prepared for the configuration script, then import MGW's background configuration.The design capacity of Mianyang MGW is 200,000 users, the final configuration is two types of plates and 8 box, all index is stable after operation.