移動互聯(lián)網(wǎng)環(huán)境下的核心網(wǎng)剖析及演進

第一篇 移動核心網(wǎng)技術發(fā)展綜述 第1 章 移動核心網(wǎng)概述........................................................................................ 2 1.1 移動通信的發(fā)展歷程..................................................................................... 3 1.2 3G 核心網(wǎng)的概況............................................................................................ 6 1.2.1 WCDMA 核心網(wǎng)技術............................................................................. 6 1.2.2 CDMA2000 核心網(wǎng)技術......................................................................15 1.3 LTE 核心網(wǎng)簡介............................................................................................21 1.4 移動核心網(wǎng)的技術發(fā)展趨勢......................................................................26 本章小結(jié)...................................................................................................................28 參考文獻...................................................................................................................28 第二篇 業(yè)務篇 第2 章 移動互聯(lián)網(wǎng)業(yè)務......................................................................................30 2.1 移動互聯(lián)網(wǎng)業(yè)務概述...................................................................................31 2.1.1 移動互聯(lián)網(wǎng)定義...................................................................................31 2.1.2 移動互聯(lián)網(wǎng)特征...................................................................................31 2.1.3 移動互聯(lián)網(wǎng)發(fā)展趨勢...........................................................................33 2.2 移動互聯(lián)網(wǎng)典型業(yè)務................................................................................... 35 2.2.1 典型業(yè)務及特征................................................................................... 35 2.2.2 應用變化趨勢....................................................................................... 44 2.3 移動互聯(lián)網(wǎng)業(yè)務對移動核心網(wǎng)的影響.................................................... 46 本章小結(jié)................................................................................................................... 48 參考文獻................................................................................................................... 49 第3 章 M2M業(yè)務................................................................................................. 50 3.1 M2M 業(yè)務場景分類..................................................................................... 51 3.1.1 監(jiān)控報警類........................................................................................... 51 3.1.2 信息推送類........................................................................................... 52 3.1.3 視頻監(jiān)控類........................................................................................... 55 3.1.4 遠程控制執(zhí)行器類............................................................................... 57 3.2 M2M 業(yè)務的特征......................................................................................... 58 3.2.1 M2M 的通用業(yè)務特征......................................................................... 59 3.2.2 M2M 的特定業(yè)務特征......................................................................... 60 3.3 M2M 業(yè)務對移動核心網(wǎng)的影響............................................................... 63 本章小結(jié)................................................................................................................... 67 參考文獻................................................................................................................... 67 第三篇 技術篇 第4 章 W&TD-SCDMA 核心網(wǎng)架構(gòu)及協(xié)議................................................ 70 4.1 概述.................................................................................................................. 71 4.2 W&TD-SCDMA 移動核心網(wǎng)的網(wǎng)絡架構(gòu)介紹...................................... 72 4.3 網(wǎng)元主要功能和接口介紹.......................................................................... 73 4.3.1 W&TD-SCDMA 移動核心網(wǎng)邏輯網(wǎng)元及網(wǎng)絡接口........................... 73 4.3.2 電路域主要邏輯網(wǎng)元功能要求和接口介紹....................................... 76 4.3.3 分組域主要邏輯網(wǎng)元功能要求和接口介紹....................................... 78 4.3.4 歸屬位置寄存器（HLR）................................................................... 80 4.4 用戶接入呼叫流程........................................................................................80 4.4.1 電路域用戶接入呼叫流程....................................................................80 4.4.2 分組域用戶接入呼叫流程....................................................................85 4.5 現(xiàn)網(wǎng)部署實例.................................................................................................91 4.5.1 GSM 與WCDMA 共存的網(wǎng)絡拓撲實例............................................91 4.5.2 WCDMA 移動核心網(wǎng)網(wǎng)絡結(jié)構(gòu)...........................................................92 4.5.3 TD-SCDMA 本地網(wǎng)MSC Server/VLR 組網(wǎng)示意圖...........................93 本章小結(jié)...................................................................................................................94 參考文獻...................................................................................................................94 第5 章 CDMA2000 核心網(wǎng)架構(gòu)及協(xié)議........................................................95 5.1 概述..................................................................................................................96 5.2 CDMA2000 核心網(wǎng)架構(gòu)..............................................................................97 5.2.1 CDMA2000 核心網(wǎng)架構(gòu)......................................................................97 5.2.2 CDMA2000 網(wǎng)絡中常見的一些基本概念...........................................99 5.3 網(wǎng)元功能要求和接口要求.........................................................................101 5.3.1 電路域主要邏輯網(wǎng)元功能要求和接口介紹......................................101 5.3.2 分組域主要邏輯網(wǎng)元功能要求和接口介紹......................................104 5.4 用戶接入呼叫流程......................................................................................109 5.4.1 電路域用戶接入呼叫流程..................................................................109 5.4.2 分組域用戶接入呼叫流程..................................................................114 5.5 現(xiàn)網(wǎng)部署實例...............................................................................................121 5.5.1 CDMA2000 網(wǎng)絡拓撲結(jié)構(gòu)一.............................................................121 5.5.2 CDMA2000 網(wǎng)絡拓撲結(jié)構(gòu)二.............................................................122 5.5.3 分層次的CDMA2000 網(wǎng)絡拓撲結(jié)構(gòu)................................................124 本章小結(jié).................................................................................................................126 參考文獻.................................................................................................................126 第6 章 LTE/EPC 核心網(wǎng)網(wǎng)絡架構(gòu)及協(xié)議.................................................127 6.1 LTE/EPC 核心網(wǎng)網(wǎng)絡架構(gòu)........................................................................128 6.2 EPC 網(wǎng)元的功能要求................................................................................. 131 6.2.1 MME 功能.......................................................................................... 132 6.2.2 S-GW 功能......................................................................................... 135 6.2.3 P-GW 功能......................................................................................... 136 6.2.4 HSS 功能............................................................................................ 138 6.2.5 PCRF 功能.......................................................................................... 140 6.2.6 HSGW 功能........................................................................................ 141 6.2.7 其他網(wǎng)元功能..................................................................................... 142 6.3 EPC 網(wǎng)絡接入的信令流程........................................................................ 142 6.3.1 用戶初次附著及去附著流程............................................................. 143 6.3.2 跟蹤區(qū)更新流程................................................................................. 149 6.3.3 切換流程............................................................................................. 151 6.3.4 業(yè)務請求流程..................................................................................... 156 6.3.5 會話管理流程..................................................................................... 158 6.4 EPC 和CDMA 的互操作.......................................................................... 160 6.4.1 EPC 和CDMA 的語音互操作方案................................................... 160 6.4.2 EPC 和CDMA 的數(shù)據(jù)互操作方案................................................... 164 6.5 EPC 和WLAN 的互操作方案................................................................. 187 6.5.1 S2a 方案.............................................................................................. 188 6.5.2 S2b 方案............................................................................................. 192 6.5.3 S2c 方案.............................................................................................. 197 6.6 3GPP/3GPP2 EPC 網(wǎng)絡的新進展............................................................ 206 本章小結(jié)................................................................................................................. 209 參考文獻................................................................................................................. 210 第7 章 移動核心網(wǎng)對移動互聯(lián)網(wǎng)業(yè)務的支持.......................................... 211 7.1 移動互聯(lián)網(wǎng)業(yè)務的快速發(fā)展對移動網(wǎng)的挑戰(zhàn)..................................... 212 7.1.1 數(shù)據(jù)流量巨大的增幅使得網(wǎng)絡面臨巨大的流量壓力...................... 212 7.1.2 OTT 業(yè)務對傳統(tǒng)業(yè)務構(gòu)成沖擊........................................................ 213 7.1.3 電信網(wǎng)絡日益“管道化”................................................................. 213 7.1.4 移動互聯(lián)網(wǎng)沖擊下網(wǎng)絡凸顯的問題..................................................214 7.1.5 應對思路.............................................................................................215 7.2 提高網(wǎng)絡的智能化水平.............................................................................217 7.2.1 智能管道的架構(gòu).................................................................................217 7.2.2 智能管道的應用關鍵技術..................................................................219 7.2.3 智能管道的典型應用場景..................................................................222 7.3 加強網(wǎng)絡融合...............................................................................................224 7.3.1 接入網(wǎng)發(fā)現(xiàn)和選擇機制.....................................................................225 7.3.2 通過發(fā)展WLAN 實現(xiàn)流量分流和流量優(yōu)化....................................227 7.4 提高網(wǎng)絡安全性..........................................................................................228 參考文獻.................................................................................................................230 第8 章 策略與計費控制系統(tǒng)（PCC） .......................................................231 8.1 PCC 概述.......................................................................................................232 8.1.1 PCC 歷史回顧.....................................................................................232 8.1.2 PCC 整體構(gòu)架.....................................................................................233 8.2 PCC 功能實體..............................................................................................235 8.2.1 策略控制和計費規(guī)則功能（PCRF）................................................235 8.2.2 策略和計費執(zhí)行功能（PCEF） ........................................................239 8.2.3 承載綁定和事件報告功能（BBERF） .............................................244 8.2.4 流量檢測功能（TDF）......................................................................245 8.2.5 應用功能（AF） ................................................................................245 8.2.6 用戶屬性存儲（SPR） ......................................................................246 8.3 PCC 參考點..................................................................................................246 8.3.1 Rx 參考點...........................................................................................246 8.3.2 Gx 參考點...........................................................................................247 8.3.3 Sp 參考點............................................................................................247 8.3.4 Gy 參考點...........................................................................................247 8.3.5 Gz 參考點............................................................................................248 8.3.6 S9 參考點...........................................................................................248 8.3.7 Gxx 參考點........................................................................................ 248 8.4 PCC 主要信令流程..................................................................................... 249 8.4.1 概述..................................................................................................... 249 8.4.2 IP-CAN 會話建立.............................................................................. 250 8.4.3 IP-CAN 會話終止.............................................................................. 252 8.4.4 IP-CAN 會話修改.............................................................................. 257 8.4.5 PCRF 中簽約信息的更新.................................................................. 264 8.5 策略控制的能力開放技術........................................................................ 265 本章小結(jié)................................................................................................................. 268 參考文獻................................................................................................................. 268 第9 章 移動核心網(wǎng)的智能感知與統(tǒng)計分析技術..................................... 270 9.1 感知技術原理.............................................................................................. 272 9.1.1 業(yè)務應用感知..................................................................................... 272 9.1.2 網(wǎng)絡忙閑狀態(tài)感知............................................................................. 277 9.2 移動核心網(wǎng)智能感知的部署方案剖析.................................................. 281 9.2.1 網(wǎng)絡架構(gòu)圖......................................................................................... 281 9.2.2 關鍵技術分析..................................................................................... 283 9.2.3 典型應用場景..................................................................................... 285 9.3 基于感知的統(tǒng)計分析技術........................................................................ 286 9.3.1 感知數(shù)據(jù)的采集................................................................................. 286 9.3.2 感知數(shù)據(jù)的統(tǒng)計分析......................................................................... 287 本章小結(jié)................................................................................................................. 293 參考文獻................................................................................................................. 294 第10 章 移動核心網(wǎng)對M2M 業(yè)務的支持.............................................. 295 10.1 支持M2M 業(yè)務的移動核心網(wǎng)架構(gòu)..................................................... 296 10.2 2G/3G 核心網(wǎng)對M2M 的業(yè)務支持..................................................... 298 10.2.1 獨立號段組網(wǎng)................................................................................... 298 10.2.2 用戶等級控制................................................................................... 299 10.2.3 通信時間控制...................................................................................299 10.2.4 Always-on 方式優(yōu)化.........................................................................300 10.2.5 分組域?qū)ず魞?yōu)化...............................................................................301 10.3 LTE/EPC 網(wǎng)絡對M2M 業(yè)務的支持.....................................................302 10.3.1 擁塞/過負荷控制方案......................................................................303 10.3.2 低移動性的優(yōu)化方案.......................................................................305 10.3.3 采用FQDN 作為終端標識...............................................................307 10.3.4 小數(shù)據(jù)傳輸方案...............................................................................308 10.3.5 M2M 終端的觸發(fā)方案.....................................................................310 10.3.6 通信時間受控的優(yōu)化方案................................................................312 10.3.7 終端尋址方案...................................................................................313 本章小結(jié).................................................................................................................315 參考文獻.................................................................................................................315 第四篇 演進篇 第11 章 移動核心網(wǎng)向LTE/EPC 的演進...............................................318 11.1 WCDMA 向LTE/EPC 網(wǎng)絡的演進.......................................................319 11.1.1 電路域的演進...................................................................................319 11.1.2 分組域的演進...................................................................................323 11.2 CDMA 向LTE/EPC 網(wǎng)絡的演進...........................................................326 11.2.1 電路域的演進...................................................................................326 11.2.2 分組域的演進...................................................................................328 本章小結(jié).................................................................................................................333 參考文獻.................................................................................................................333