GPRS设计及应用概述.ppt

GPRS Design and WAP Overview GPRS设计及应用概述 Leo HuangMotorola Greater China Network Solution Division 摩托罗拉大中华区系统方案解决部 Table of Content 目录 GPRS Overview GPRS概述 GPRS RF Characteristics GPRS的无线特性 Basic TCP/IP Concept TCP/IP基本原理 IP Related Topic in GPRS GPRS中与IP有关的话题 WAP Introduction WAP简介 GPRS Overview GPRS概述 What is GPRS 什么是GPRS GPRS standard and SMG GPRS标准及SMG The components of GPRS system GPRS系统的组成 GPRS end to end protocol stack GPRS端到端协议栈 What is GPRS 什么是GPRS GPRS is the abbreviation of General Packet Radio System GPRS是通用分组无线系统的英文缩写 For data application, circuit switching is wasteful of valuable spectrum while packet switching is more efficient对于数据应用来说,传统的电路交换浪费了宝贵的频率资源,而分组交换在数据应用方面对频率利用的效率则高得多 GPRS is a way to provide wireless data service using the mature GSM technology and network. GPRS提供了在现有成熟的GSM技术及网络中实施数据服务的方案 GPRS subscribers will be permanently connected, just like PC in the office LANGPRS终端可以长时间保持与网络的连接, 就象PC机连接在办公室内的局域网上一样 GPRS Standard and SMG GPRS标准及SMG GPRS standard is made by ETSI GPRS标准是由ETSI制定的 ETSI stands for European Telecommunication Standards Institute ETSI是欧洲通信标准协会的英文缩写 ETSI can be visited at ETSI的主页在  SMG stands for Special Mobile Group - A sub-organization of ETSI SMG是ETSI技术委员会的一个下属机构-特别移动组 SMG hold two major meetings each year, finalize standard changes on the meeting, SMG#31 stands for the standard version till the 31th SMG meetingSMG每年举办两次大会,并在会议上通过对标准的修订案, 通常提到的SMG#31代表直到第31届SMG大会为止的标准版本 GSM/GPRS technical specifications are divided into 13 parts GSM/GPRS技术规范都分为13个部分 GSM/GPRS Technical Specification CategoryGSM/GPRS 技术规范分类 00 Preamble 导言 01 General 总则 02 Service Aspects 服务方面 03 Network Aspects 网络方面 04 MS-BSS interface and Protocols 移动台与基站系统的接口及协议 05 Physical Layer in the Radio Path 无线通道的物理层 06 Audio Aspects 无线方面 07 Terminal Adaptors for Mobile Station 移动台的终端适配器 08 BTS/BSC and BSC/MSC Interface BTS/BSC和BSC/MSC接口 09 Network Interworking 交互网络 10 Service Interworking 交互服务 11 Equipment Specification a