下一代网络中的机遇与挑战  

Opportunities and Challenges in NGN

作　　者：蒋林涛[1] 

机构地区：[1]信息产业部电信研究院

出　　处：《世界电信》2005年第7期22-26,共5页World Telecommunications

摘　　要：下一代网是市场需求和业务需求推动的,将是一个以商业运营为其主要目的的网络,完全不同于没有明确商业目标的Internet。探讨了下一代电信业务网,说明目前研究比较多和深入的是下一代基于会话的电信业务网。指明软交换机是PSTN电话向分组语音电话过渡和演进过程中的初级阶段的一种产品,而IMSbase的多媒体会话业务体系是中级阶段。论述了NGN与IPv6。阐明下一代网机遇与挑战并存。NGN is pushed by market and service.Next generation telecom network is targeting at business operation, which is totally different from Internet. The next generation telecom service network is discussed. The research hotspot is session-based telecom service network. Softswitch appears at the early stage of migrating from PSTN to packet voice telephone. IMS-based multimedia session service architecture is at the middle stage.NGN and IPv6 is discussed. Opportunities andchallenges will co-exist in NGN.

关 键 词：电信网 INTERNET 商业模型 电信业务网 服务质量 

分 类 号：TN915[电子电信—通信与信息系统] TP393.4[电子电信—信息与通信工程]