摘要
文章讨论了3GPP UMTS全IP无线网络中的两种运行模式:传输模式和本机模式,3个不同层次移动性支持:接入移动性、宽域移动性和微移动性。对基于路由和基于隧道两种移动性管理协议进行了比较,并介绍了基于多协议标志交换(MPLS) 的分级移动性管理方案,该方案利用标志边界移动性代理的增强MPLS路由器,使网络具有灵活性、可升级性和无隙缝移动性。
This paper discusses two modes of IP deployment in UMTS All-IP wireless networks: the transport mode and the native mode. It then analyzes the 3 levels of mobility support in the All-IP network: access mobility, wide-area mobility and micro-mobility. Besides, routing based and tunnel based micro-mobility protocols are compared, and a hierarchical mobility management scheme based on Multi-Protocol Label Switching (MPLS) is described. The scheme makes use of Label Edge Mobility Agents, an enhanced type of MPLS routers, to make the network flexible, scalable and seamlessly movable.
出处
《中兴通讯技术》
2004年第5期8-13,共6页
ZTE Technology Journal
