移动性管理是移动通信领域的热点研究内容。在未来的通信中,对于多种接入网并存、大量终端要求接入的情况下,移动性管理本身面临巨大的挑战。首先对移动性的概念从基础和功能两方面进行了介绍,然后针对LTE系统内部的移动性管理作了整体描述,接着以切换流程为重点进行了研究,最后介绍了数据转发、无损切换等几个关键处理过程。 Mobility management is a hot research topic in the field of mobile communication. In the future of communication, for a variety of access networks co-exist, a large number of terminals require access, the mobility management itself is facing enormous challenges. First of all, the concept of mobility is introduced from both the basic and the function. Then, the overall description of the mobility management in the LTE system is made. Then the research focuses on the handover process. Finally, the data forwarding and lossless switching are introduced A key process.