GPRS网络结构和网元 GPRS网络接口和协议 GPRS地址、编号和标识 GPRS移动性管理 GPRS会话管理 -GPRS network structure and network element GPRS network interface and protocol GPRS address, number and logo GPRS Mobility Management GPRS session management

Its main tasks in general are: - call control (establishment, supervision  maintenance, release) control of services Mobile specific additional tasks are: subscriber administration- mobility management We distinguish between

GSM原理介绍，GSM系统的组成、各子系统的功能，GSM关键技术，GSM移动性管理，呼叫流程举例-Principles introduced GSM, GSM system components, the subsystem functionality, GSM key technologies, GSM mobility management, call flow example

Mobility Management Approaches for Mobile IP Networks