【資料名稱】：GPRS基本原理

【資料作者】：yzbai666

【資料日期】：2009

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

第 1 章 GPRS概述..................................................................................................................1-1
1.1 GPRS的產(chǎn)生...................................................................................................................... 1-1
1.2 GPRS的發(fā)展...................................................................................................................... 1-1
1.3 CSD與GPRS的比較........................................................................................................... 1-2
1.3.1 電路交換的通信方式................................................................................................ 1-2
1.3.2 分組交換的通信方式................................................................................................ 1-2
1.3.3 GPRS與HSCSD業(yè)務的比較.................................................................................... 1-3
1.4 GPRS業(yè)務發(fā)展分析........................................................................................................... 1-5
1.4.1 GPRS業(yè)務發(fā)展的有利因素...................................................................................... 1-5
1.4.2 制約GPRS業(yè)務應用的不利因素.............................................................................. 1-6
第2 章 GPRS基本功能和業(yè)務.................................................................................................2-1
2.1 GPRS業(yè)務種類.................................................................................................................. 2-1
第3 章 GPRS基本體系結(jié)構(gòu)和傳輸機制..................................................................................3-1
3.1 GPRS接入點...................................................................................................................... 3-1
3.2 網(wǎng)絡互通............................................................................................................................. 3-1
3.3 邏輯體系結(jié)構(gòu)..................................................................................................................... 3-1
3.3.1 主要網(wǎng)絡實體........................................................................................................... 3-3
3.3.2 主要的網(wǎng)絡接口....................................................................................................... 3-5
3.4 高層功能............................................................................................................................. 3-7
3.4.1 網(wǎng)絡接入控制功能.................................................................................................... 3-7
3.4.2 分組路由和轉(zhuǎn)發(fā)功能................................................................................................ 3-8
3.4.3 移動性管理功能..................................................................................................... 3-10
3.4.4 邏輯鏈路管理功能.................................................................................................. 3-11
3.4.5 無線資源管理功能.................................................................................................. 3-11
3.4.6 網(wǎng)絡管理功能......................................................................................................... 3-12
3.5 功能分配........................................................................................................................... 3-12
3.6 GPRS數(shù)據(jù)傳輸平面......................................................................................................... 3-14
3.7 GPRS信令平面................................................................................................................ 3-15
3.7.1 MS與SGSN間信令平面......................................................................................... 3-15
3.7.2 SGSN與HLR間信令平面....................................................................................... 3-16
3.7.3 SGSN與MSC/VLR間信令平面.............................................................................. 3-16
3.7.4 SGSN與EIR間信令平面........................................................................................ 3-17
3.7.5 SGSN與SMS-GMSC、SMS-IWMSC間信令平面................................................. 3-17
3.7.6 GPRS支持節(jié)點間信令平面.................................................................................... 3-18
3.7.7 GGSN與HLR間信令平面....................................................................................... 3-18
第4 章移動性管理..................................................................................................................4-1
4.1 移動性管理狀態(tài).................................................................................................................. 4-1
GPRS 基本原理目錄
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4.1.1 IDLE狀態(tài)................................................................................................................. 4-1
4.1.2 STANDBY狀態(tài)........................................................................................................ 4-1
4.1.3 READY狀態(tài)............................................................................................................. 4-2
4.2 MM狀態(tài)功能....................................................................................................................... 4-3
4.2.1 MM狀態(tài)遷移............................................................................................................ 4-3
4.2.2 就緒定時器功能....................................................................................................... 4-4
4.2.3 周期性路由區(qū)更新定時器功能................................................................................. 4-5
4.2.4 MS可及定時器功能.................................................................................................. 4-5
4.3 SGSN與MSC/VLR的交互.................................................................................................. 4-6
4.3.1 SGSN-MSC/VLR關(guān)聯(lián)的管理................................................................................... 4-6
4.3.2 聯(lián)合RA/LA更新........................................................................................................ 4-7
4.3.3 CS尋呼協(xié)調(diào)及網(wǎng)絡操作模式.................................................................................... 4-7
4.4 MM規(guī)程.............................................................................................................................. 4-9
4.4.1 GPRS附著功能........................................................................................................ 4-9
4.4.2 GPRS分離規(guī)程...................................................................................................... 4-11
4.4.3 清除功能................................................................................................................ 4-13
4.5 安全性功能....................................................................................................................... 4-13
4.5.1 用戶鑒權(quán)................................................................................................................ 4-14
4.5.2 用戶識別碼保密..................................................................................................... 4-14
4.5.3 用戶數(shù)據(jù)和GMM/SM信令保密............................................................................... 4-15
4.5.4 用戶身份檢查......................................................................................................... 4-16
4.6 位置管理功能................................................................................................................... 4-16
4.6.1 小區(qū)更新規(guī)程......................................................................................................... 4-17
4.6.2 路由區(qū)更新規(guī)程..................................................................................................... 4-17
4.6.3 聯(lián)合RA/LA更新規(guī)程.............................................................................................. 4-19
4.6.4 周期性路由區(qū)更新和位置區(qū)更新............................................................................ 4-22
4.7 用戶數(shù)據(jù)管理功能............................................................................................................ 4-23
4.7.1 添加用戶數(shù)據(jù)規(guī)程.................................................................................................. 4-23
4.7.2 刪除用戶數(shù)據(jù)規(guī)程.................................................................................................. 4-23
4.8 MS類標處理功能.............................................................................................................. 4-24
第5 章無線資源管理功能.......................................................................................................5-1
5.1 無線資源管理..................................................................................................................... 5-1
5.2 GPRS下行鏈路傳輸?shù)膶ず?............................................................................................... 5-1
5.3 小區(qū)選擇和小區(qū)重選.......................................................................................................... 5-2
5.4 非連續(xù)接收......................................................................................................................... 5-2
第6 章分組路由與傳輸功能....................................................................................................6-1
6.1 PDP狀態(tài)和狀態(tài)轉(zhuǎn)換.......................................................................................................... 6-1
6.2 會話管理規(guī)程..................................................................................................................... 6-2
6.2.1 靜態(tài)地址與動態(tài)地址................................................................................................ 6-2
6.2.2 PDP上下文的激活規(guī)程............................................................................................ 6-3
6.2.3 PDP上下文的修改................................................................................................... 6-4
6.2.4 PDP上下文的去激活................................................................................................ 6-5
GPRS 基本原理目錄
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6.3 業(yè)務流程舉例..................................................................................................................... 6-7
6.3.1 MS發(fā)起分組數(shù)據(jù)業(yè)務.............................................................................................. 6-7
6.3.2 網(wǎng)絡發(fā)起分組數(shù)據(jù)業(yè)務............................................................................................ 6-8
第7 章用戶數(shù)據(jù)傳輸..............................................................................................................7-1
7.1 傳輸模式............................................................................................................................. 7-1
7.1.1 GTP傳輸模式........................................................................................................... 7-1
7.1.2 LLC傳輸模式........................................................................................................... 7-1
7.1.3 RLC傳輸模式........................................................................................................... 7-1
7.2 LLC功能............................................................................................................................. 7-1
7.2.1 尋址......................................................................................................................... 7-1
7.2.2 服務......................................................................................................................... 7-2
7.2.3 功能......................................................................................................................... 7-2
7.3 SNDCP功能....................................................................................................................... 7-2
7.4 PPP功能............................................................................................................................. 7-4
7.5 Gb接口............................................................................................................................... 7-4
7.5.1 物理層...................................................................................................................... 7-4
7.5.2 FR子層.................................................................................................................... 7-4
7.5.3 NS子層.................................................................................................................... 7-5
7.5.4 BSSGP層................................................................................................................ 7-5
7.6 Abis接口............................................................................................................................. 7-9
7.6.1 結(jié)構(gòu)A..................................................................................................................... 7-10
7.6.2 結(jié)構(gòu)B..................................................................................................................... 7-10
7.6.3 結(jié)構(gòu)C..................................................................................................................... 7-11
第8 章信息存儲.....................................................................................................................8-1
8.1 HLR................................................................................................................................... 8-1
8.2 SGSN................................................................................................................................ 8-2
8.3 GGSN ............................................................................................................................... 8-4
8.4 MS..................................................................................................................................... 8-5
8.5 MSC/VLR........................................................................................................................... 8-7
第9 章編號方案.....................................................................................................................9-1
9.1 IMSI................................................................................................................................... 9-1
9.2 P-TMSI.............................................................................................................................. 9-2
9.3 NSAPI/TLLI ........................................................................................................................ 9-2
9.3.1 NSAPI...................................................................................................................... 9-2
9.3.2 臨時邏輯鏈路標識（TLLI） ..................................................................................... 9-3
9.4 PDP地址和類型.................................................................................................................. 9-3
9.5 TID .................................................................................................................................... 9-3
9.6 路由區(qū)識別碼..................................................................................................................... 9-4
9.7 小區(qū)標識............................................................................................................................. 9-4
9.8 GSN地址............................................................................................................................ 9-4
9.9 接入點名字......................................................................................................................... 9-5
GPRS 基本原理目錄
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第10 章 GPRS系統(tǒng)的運營....................................................................................................10-1
10.1 計費信息......................................................................................................................... 10-1
10.2 計費功能......................................................................................................................... 10-1
10.2.1 分組型業(yè)務計費方式和電路型業(yè)務計費方式的區(qū)別............................................. 10-1
10.2.2 計費處理流程和話單傳送接口............................................................................. 10-2
10.2.3 話單類型.............................................................................................................. 10-2
10.3 網(wǎng)絡服務質(zhì)量（QoS）................................................................................................... 10-3
10.3.1 優(yōu)先級別.............................................................................................................. 10-3
10.3.2 延時級別.............................................................................................................. 10-3
10.3.3 可靠性級別.......................................................................................................... 10-3
10.3.4 峰值吞吐量級別................................................................................................... 10-4
10.3.5 平均吞吐量級別................................................................................................... 10-5
10.4 消息過濾功能................................................................................................................. 10-6
10.5 兼容性問題..................................................................................................................... 10-6
第11 章與GSM其它業(yè)務的交互...........................................................................................11-1
11.1 與點對點短消息業(yè)務關(guān)系............................................................................................... 11-1
11.2 與電路交換業(yè)務的關(guān)系................................................................................................... 11-1
第12 章 IP相關(guān)的基礎知識...................................................................................................12-1
12.1 NAT和PROXY................................................................................................................ 12-1
12.2 FIREWALL..................................................................................................................... 12-1
12.3 GRE ............................................................................................................................... 12-3
12.4 DNS ............................................................................................................................... 12-3
12.5 RADIUS ......................................................................................................................... 12-4
12.6 VPN............................................................................................................................... 12-4
12.6.1 VPN基本概念....................................................................................................... 12-4
12.6.2 VPN的基本技術(shù)................................................................................................... 12-4
12.6.3 VPN的類型與應用方式........................................................................................ 12-6
12.6.4 三層隧道協(xié)議....................................................................................................... 12-7
12.6.5 VPN的優(yōu)點.......................................................................................................... 12-7
附錄A