Design And Investigation Of Soft-Switch Gateway Multi-Area Network For Henan Mobile Communication

In the thesis, the actual status of the HeNan Chinamobile core network is investigated, and for the purpose of satisfying the operation demand by the end of 2008, it gives the telephone traffic forecast and requirements analysis reasonably, combined with the function and specialties of the soft-switch equipments, telephone traffic route,signaling,IP bearer network organization and business realization which depend the gateway multi-area network condition are particularly designed and described. Based on the network structure and business targets, the processing capacity,signaling bandwidth and interface configuration of the soft-switch devices are fully calculated, so the configuration criterion of every gateway network elements and every interfaces is confirmed.The testing environment is built based on IP bearer network, and plenty tests are implemented under various conditions. As a result, it validates the carrying capacity of IP bearer network towards the soft-switch core network business, and the reliability of the soft-switch and IP equipment manufactured by Huawei is verified. Further more, the necessity of SCTP multi-homing technology disposing is shown, and adopting standard of the VAD and voice coding-decoding is affirmed.The data and results gained during the design can fully fulfil the HeNan mobile gateway to achieve the business demand by the end of 2008. Meanwhile, all kinds of network project,data calculating methods and test results in the thesis can be references in soft-switch core network and IP bearer network construction.