软交换组网方式的研究

对下一代网络（NGN）中软交换组网方式进行研究．针对现有的PSTN网络和软交换网络的组网方式，分析比较了各种方式的优缺点．在此基础上进一步提出一种新的基于位置服务器的组网方案．该方案充分考虑了软交换网络的扁平化特征，同时又具有灵活的组网特性，解决了层次结构中路由选择复杂和平面结构中数据维护复杂的矛盾，对实际的软交换网络的组网具有参考价值．

Study on architecture of softswitch network

A study was performed on architecture of softswitch network in NGN.First,architecture of current PSTN and softswitch network were analyzed and their advantages and disadvantages were explored.Second,a new PS-based(position server) network scheme was proposed.This project took full account of the flat feature of softswitch network and also possessed the flexibility in architecture of softswitch network so as to solve the problem of complexity of route selection in layered architecture and data maintenance in plane architecture.This pattern of network has referential value in the practical softswitch network architecture.