【正文】 演進(jìn)的分組核心網(wǎng) 絡(luò)總體技術(shù)研究 （第一階段） General Technical Research for Evolved Packet Core Network （ Phase I） （送審稿） I 目 次 目 次 ............................................................................... I 前 言 ............................................................................... V 演進(jìn)的分組核心網(wǎng)絡(luò)總體技術(shù)研究（第一階段） ............................................. 1 1 范圍 ................................................................................. 1 2 規(guī)范性引用文件 ....................................................................... 1 3 縮略語 ............................................................................... 2 4 EPS 網(wǎng)絡(luò)架構(gòu) ........................................................................ 6 非漫游架構(gòu) ......................................................................... 6 漫游架構(gòu) ........................................................................... 6 功能實(shí)體 ........................................................................... 8 EUTRAN .......................................................................... 8 MME .............................................................................. 8 SGW ............................................................................. 9 PGW ............................................................................. 9 SGSN ............................................................................ 10 HSS ............................................................................. 10 PCRF ............................................................................ 10 參考點(diǎn)及協(xié)議 ...................................................................... 10 5 基本功能要求 ........................................................................ 11 標(biāo)識管理 ....................................................................... 11 EPS 承載標(biāo)識符 ................................................................... 11 全球唯一臨時(shí) UE 標(biāo)識符（ GUTI） .................................................. 11 跟蹤區(qū)標(biāo)識符 (TAI) ............................................................... 12 eNodeB S1AP UE 標(biāo)識符 (eNodeB S1AP UE ID) ..................................... 12 MME S1AP UE 標(biāo)識符 (MME S1AP UE ID) ......................................... 12 ME Identity ....................................................................... 12 節(jié)點(diǎn)選擇 ...................................................................... 12 PGW 選擇 ....................................................................... 12 SGW 選擇 ....................................................................... 13 MME 選擇 ....................................................................... 14 SGSN 選擇 ....................................................................... 14 PCRF 選擇 ....................................................................... 14 移動(dòng)性管理 ...................................................................... 14 移動(dòng)性管理的狀態(tài)模型 ............................................................ 14 移動(dòng)性 約束功能 .................................................................. 15 ISR 功能 ......................................................................... 15 附著管理 ........................................................................ 17 跟蹤區(qū)更新 ...................................................................... 28 Service Request 過程 ............................................................... 40 II GUTI 重分配功能 ................................................................. 43 eNODE B 間的切換功能 ............................................................ 43 S1 Release 功能 ................................................................... 51 用戶在 ECMIDLE 狀態(tài)時(shí)的可達(dá)性管理 ............................................. 52 會話管理 ..................................................................... 53 專有承載激活 .................................................................... 53 承載級 QoS 更新引起的承載修改 ................................................... 54 PGW 發(fā)起的非 QoS 更新引起的承載修 改 ............................................ 58 承載去激活 ...................................................................... 59 UE 要求的承載資源修改 ........................................................... 63 UE 要求的承載資源釋放 ........................................................... 64 附著過程或 UE 請求 PDN 連接過程伴隨專用承載的建立（可選） ....................... 65 用戶數(shù)據(jù)管理 .................................................................. 67 用戶數(shù) 據(jù)存儲 .................................................................... 67 用戶數(shù)據(jù)更新 .................................................................... 67 Purge 用戶 ....................................................................... 69 Cancel Location ................................................................... 69 用戶優(yōu)先級控制 .................................................................. 70 網(wǎng)絡(luò)接入控制 ...................................................................... 70 網(wǎng)絡(luò)選擇 /接入網(wǎng)絡(luò)選擇 ........................................................... 70 鑒權(quán)和授權(quán) ...................................................................... 70 準(zhǔn)入（ admission）控制 ............................................................ 70 策略和計(jì)費(fèi)執(zhí)行 .................................................................. 70 合法監(jiān)聽 ........................................................................ 70 分組數(shù)據(jù)路由和傳送 ................................................................ 70 IP 包頭壓縮 ...................................................................... 70 包過濾 .......................................................................... 70 無線資源管理 ...................................................................... 70 IP 網(wǎng)絡(luò)相關(guān)的功能 ................................................................. 71 DNS 功能 ...........................................................