移动网分组域的演进  

Evolution of Mobile Network Packet Domain

作　　者：许慕鸿 

机构地区：[1]工业和信息化部电信研究院通信标准研究所

出　　处：《电信网技术》2009年第6期13-17,共5页Telecommunications Network Technology

基　　金：国家重大专项基金资助项目(2008ZX03004-001)

摘　　要：介绍了GPRS系统和EPC系统的主要特征、网络结构、主要网元的基本功能及发展情况,分析了GPRS系统和EPC系统中技术的相同和不同点,说明了EPC系统是对GPRS系统的继承和发展。This article describes characteristics, configuration, basic function of the main network elements and development both for GPRS system and EPC system. By comparing these two systems, we can draw a conclusion that some features have been inherited from GPRS system, whilst some new technologies have also been introduced into EPC system.

关 键 词：GPRS EPC Direct-Tunnel GTP 

分 类 号：TN929.5[电子电信—通信与信息系统] TN929.53[电子电信—信息与通信工程]