【資料名稱】：GPRS基本原理

【資料作者】：

【資料日期】：

【資料語言】：中文

【資料格式】：PDF

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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(wù)的比較 ................................................ 1-3
1.4 GPRS 業(yè)務(wù)發(fā)展分析 ................................................................................... 1-5
1.4.1 GPRS 業(yè)務(wù)發(fā)展的有利因素 ........................................................... 1-5
1.4.2 制約 GPRS 業(yè)務(wù)應(yīng)用的不利因素............................................................ 1-6
第 2 章 GPRS 基本功能和業(yè)務(wù) ..................................................................2-1
2.1 GPRS 業(yè)務(wù)種類......................................................................................... 2-1
第 3 章 GPRS 基本體系結(jié)構(gòu)和傳輸機(jī)制...............................................3-1
3.1 GPRS 接入點(diǎn) .................................................................................... 3-1
3.2 網(wǎng)絡(luò)互通........................................................................................... 3-1
3.3 邏輯體系結(jié)構(gòu) ...................................................................................... 3-1
3.3.1 主要網(wǎng)絡(luò)實(shí)體..................................................................................... 3-3
3.3.2 主要的網(wǎng)絡(luò)接口 ..................................................................... 3-5
3.4 高層功能............................................................................................. 3-7
3.4.1 網(wǎng)絡(luò)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(dòng)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(luò)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(diǎn)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(dòng)性管理............................................................................ 4-1
4.1 移動(dòng)性管理狀態(tài).............................................................................. 4-1
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(shí)器功能 .................................................................... 4-4
4.2.3 周期性路由區(qū)更新定時(shí)器功能 .............................................. 4-5
4.2.4 MS 可及定時(shí)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(luò)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(biāo)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(dòng)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
6.3 業(yè)務(wù)流程舉例 ................................................................................ 6-7
6.3.1 MS 發(fā)起分組數(shù)據(jù)業(yè)務(wù) ......................................................... 6-7
6.3.2 網(wǎng)絡(luò)發(fā)起分組數(shù)據(jù)業(yè)務(wù) ............................................................ 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(wù) ............................................................................................. 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(shí)邏輯鏈路標(biāo)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(biāo)識......................................................................................... 9-4
9.8 GSN 地址 .................................................................................. 9-4

9.9 接入點(diǎn)名字 ..................................................................................... 9-5
第 10 章 GPRS 系統(tǒng)的運(yùn)營 ........................................................................10-1
10.1 計(jì)費(fèi)信息........................................................................................ 10-1
10.2 計(jì)費(fèi)功能........................................................................................ 10-1
10.2.1 分組型業(yè)務(wù)計(jì)費(fèi)方式和電路型業(yè)務(wù)計(jì)費(fèi)方式的區(qū)別................ 10-1
10.2.2 計(jì)費(fèi)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(luò)服務(wù)質(zhì)量（QoS）.................................................................. 10-3
10.3.1 優(yōu)先級別 ........................................................................................ 10-3
10.3.2 延時(shí)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(wù)的交互 .................................................................11-1
11.1 與點(diǎn)對點(diǎn)短消息業(yè)務(wù)關(guān)系 ................................................................... 11-1
11.2 與電路交換業(yè)務(wù)的關(guān)系........................................................................ 11-1
第 12 章 IP 相關(guān)的基礎(chǔ)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(yīng)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(diǎn) ....................................................................................... 12-7
附錄 A縮略語 .................................................................................................. 1