以软交换为核心的下一代网络综述  

Overview of NGN Based on Soft switch

作　　者：李海花[1] 

机构地区：[1]信息产业部电信传输研究所

出　　处：《世界电信》2003年第1期35-37,42,共4页World Telecommunications

摘　　要：首先阐述了以软交换为核心的下一代网络(NGN)的系统架构和涉及的相关协议;接着描述了NGN的系统特点;最后论述了待解决的四个问题,包括NGN继承了IP网所具有的缺陷,网络的安全性和可管理性需要解决,各种协议亟待标准化,新兴的能够吸引运营商的业务还很少。目前软交换技术也仅仅处于摸索阶段,要实现利用软交换来接入各种终端设备、接入各种网络还需要漫长的道路。NGN system architecture and related pro tocols based on Softswitch are discussed at first.Then,NGN system features are de scribed.Finally,4problems to be solved are dis cussed,including that NGN inherited disad van tages of IP network,network security and man ageability needs to be solved,protocols need to be stan-dardized and there is few new rising services that can attract operators.Up to now,Soft switch technology is only at its initial stage.There is a long way to go to realize ac cess to terminal e-quipment and to access various network through Soft switch.<

关 键 词：软交换 下一代网络 NGN 系统架构 协议 标准化 

分 类 号：TN915[电子电信—通信与信息系统]