摘要
随着电信网和互联网的融合,移动互联网必将兴起。移动互联网不仅给用户带来高质量的业务体验,也给电信也带来巨大的挑战。本文首先讨论了移动互联网的现状、层次结构和发展动因;接着系统地阐述了移动互联网的移动IP技术和相关协议,包括移动终端、移动子网的移动性支持;然后,阐述了3GPP提出的IP多媒体子系统(IMS)及其分层网络结构,面向下一代移动互联网,讨论构建具有服务质量保证的可靠可信IP网络架构;最后指出了移动互联网中的热点技术和问题。
With the integration of telecommunications network and Internet, mobile Internet is bound to rise. Mobile Internet brings not only high-quality business experience; but also enormous challenges to telecommunications. The current status and hierarchical structure of the mobile Internet are presented. Technological advances and market demand are promoting development of mobile Internet, and terminals, networks and businesses are three elements of the development of the mobile Internet. Mobile IP technique and related protocols are described systematically, which are designed to allow mobile terminal and the mobile sub-network to roam within the Internet. Then the IP Multimedia Subsystem （IMS） and its architectural framework are expounded, which are designed by （3GPP）. The credible and reliable IP network architecture with Quality of Service （QoS） based on iMS is discussed to meet the needs of the next generation of mobile Internet. Finally, the hotspots such as P2P/Multicast/Security are pointed out within the mobile Intemet.
