5G無線網(wǎng)絡(luò)優(yōu)化實踐

定　價：￥138.00

作　者：	張守國，沈保華，李曙海，雷志純，凌文杰等著
出版社：	清華大學(xué)出版社
叢編項：	新時代·技術(shù)新未來
標(biāo)　簽：	暫缺

購買這本書可以去

ISBN：	9787302570196	出版時間：	2021-04-01	包裝：	平裝
開本：	16開	頁數(shù)：	364	字數(shù)：

內(nèi)容簡介

　　本書對日常5G無線網(wǎng)絡(luò)維護和優(yōu)化過程涉及的知識點進行梳理和系統(tǒng)介紹，側(cè)重介紹NR空口和信令流程，以及消息內(nèi)容解析。本書內(nèi)容涵蓋5G理論基礎(chǔ)、網(wǎng)絡(luò)架構(gòu)、協(xié)議棧、空口信道、信令流程等。通過學(xué)習(xí)本書，讀者可以快速掌握5G網(wǎng)絡(luò)的必備知識，對5G網(wǎng)絡(luò)有一個完整、清晰的認識。本書是作者根據(jù)自身多年的移動網(wǎng)絡(luò)優(yōu)化學(xué)習(xí)經(jīng)驗，圍繞運營商優(yōu)化維護人員的需求編寫而成的。本書既可作為5G優(yōu)化維護人員的工作指導(dǎo)用書，又可作為相關(guān)人員參加無線網(wǎng)絡(luò)協(xié)優(yōu)認證考試的參考用書。

作者簡介

　　張守國，正高級工程師，現(xiàn)任職于華信咨詢設(shè)計研究院有限公司，長期從事無線網(wǎng)絡(luò)優(yōu)化工作，發(fā)表《大型場館容量設(shè)計思考》《干擾矩陣中的鄰區(qū)補償技術(shù)探討》等多篇論文，出版《LTE無線網(wǎng)絡(luò)優(yōu)化實踐》《4G無線網(wǎng)絡(luò)原理及優(yōu)化》兩本著作。沈保華，高級工程師，省級運營商無線網(wǎng)優(yōu)中心優(yōu)化主管，運營商集團高級專家，長期從事無線網(wǎng)絡(luò)規(guī)劃優(yōu)化工作，擁有豐富的移動通信領(lǐng)域從業(yè)經(jīng)驗和2G/3G/4G/5G實戰(zhàn)經(jīng)驗，曾獲全國移動通信5G技術(shù)職業(yè)技能競賽二等獎，發(fā)表論文多篇，出版著作一本。李曙海，高級工程師，省級運營商無線網(wǎng)優(yōu)中心副總經(jīng)理，運營商集團B級人才，長期負責(zé)無線網(wǎng)絡(luò)規(guī)劃優(yōu)化工作，擁有豐富的移動通信領(lǐng)域從業(yè)經(jīng)驗和2G/3G/4G/5G實戰(zhàn)經(jīng)驗，主持過2G/3G/4G/5G的多項規(guī)劃優(yōu)化創(chuàng)新研究課題，發(fā)表論文十余篇，出版著作一本。凌文杰，高級工程師，現(xiàn)任職于華信咨詢設(shè)計研究院有限公司，長期從事移動通信規(guī)劃設(shè)計、無線通信及頻譜技術(shù)研究，曾主持省部級重大科研項目兩項，發(fā)表論文十余篇。雷志純，高級工程師，現(xiàn)任職于華信咨詢設(shè)計研究院有限公司，主要從事無線網(wǎng)絡(luò)優(yōu)化和設(shè)計工作。

圖書目錄

目錄

第1章　網(wǎng)絡(luò)概述

1.1 網(wǎng)絡(luò)架構(gòu) ··········································6

1.1.1 接入網(wǎng) ·············································7

1.1.2 核心網(wǎng) ·············································9

1.2 頻譜劃分 ·········································14

1.2.1 頻段定義 ·······································14

1.2.2 頻率柵格 ·······································17

1.2.3 同步柵格 ·······································19

1.2.4 BWP概念 ······································23

1.2.5 國內(nèi)5G頻率分配 ·························26

1.3 無線幀結(jié)構(gòu) ·····································27

1.3.1 基本時間單位 ································27

1.3.2 無線幀結(jié)構(gòu) ···································28

1.4 協(xié)議棧 ·············································33

1.4.1 控制面 ···········································34

1.4.2 用戶面 ···········································40

1.5 組網(wǎng)方式 ·········································43

第2章　物理信道

2.1 物理廣播信道 ··································51

2.1.1 PBCH位置 ····································51

2.1.2 PBCH內(nèi)容解析 ····························55

2.2 物理隨機接入信道 ··························57

2.3 物理上行控制信道 ··························60

2.4 物理下行控制信道 ··························63

2.4.1 PDCCH位置定義 ··························63

2.4.2 PDCCH功能分類 ··························70

2.5 物理下行共享信道 ··························72

2.6 物理上行共享信道 ··························74

2.7 物理共享信道分配 ··························75

2.8 物理信號 ·········································77

2.8.1 解調(diào)用參考信號 ····························80

2.8.2 探測用參考信號 ····························86

2.8.3 信道狀態(tài)參考信號 ························88

2.8.4 SRS天選 ·······································91

2.9 天線端口 ·········································92

2.10　波束管理 ·······································95

IV

第3章　信令流程分析

3.1 隨機接入 ·······································102

3.1.1 競爭模式 ·····································103

3.1.2 非競爭模式 ·································106

3.1.3 RRC連接建立 ·····························107

3.1.4 RRC連接重建 ·····························109

3.1.5 時間提前量 ·································112

3.2 NG連接建立 ·································113

3.3 RRC重配置 ··································119

3.4 服務(wù)質(zhì)量控制 ································123

3.4.1 QoS參數(shù) ·····································124

3.4.2 QoS映射 ·····································127

3.5 開機入網(wǎng)流程 ································129

3.5.1 小區(qū)搜索 ·····································129

3.5.2 小區(qū)選擇 ·····································132

3.5.3 小區(qū)重選 ·····································135

3.5.4 注冊登記 ·····································138

3.6 鑒權(quán)過程和安全過程 ····················145

3.6.1 鑒權(quán)過程 ·····································145

3.6.2 安全過程 ·····································148

3.7 PDU會話過程 ·······························151

3.7.1 PDU會話建立流程 ·····················153

3.7.2 PDU會話資源分配 ·····················159

3.8 業(yè)務(wù)建立流程 ································161

3.8.1 主叫流程 ·····································161

3.8.2 被叫流程 ·····································170

3.8.3　EPS fallback流程 ························174

3.9 切換流程 ·······································179

3.9.1 測量事件的類型 ··························181

3.9.2 切換信令流程 ······························182

3.10 NSA業(yè)務(wù)流程 ·····························188

3.10.1 輔站SgNB添加過程 ·················192

3.10.2 主站MeNB變更過程 ················200

3.10.3 輔站SgNB變更過程 ·················201

3.10.4 輔站SgNB調(diào)整過程 ·················204

3.11 空口主要消息 ······························205

3.11.1 SIB1消息內(nèi)容解析 ···················208

3.11.2 SIB2消息內(nèi)容解析 ···················213

3.11.3 SIB3消息內(nèi)容解析 ···················215

3.11.4 SIB4消息內(nèi)容解析 ···················215

3.11.5 SIB5消息內(nèi)容解析 ···················217

第4章　參數(shù)定義

4.1 NCGI ·············································220

4.2 PCI ················································220

4.3 SUPI ··············································221

4.4 5G-GUTI ·······································224

4.5 5G-S-TMSI ····································225

4.6 RNTI ·············································225

4.7 5GS TAI ········································227

4.8 S-NSSAI ········································228

4.9 PRACH ·········································229

4.10 RSRP和RSRQ ···························237

4.11 APN和DNN ·······························239

V

第5章　關(guān)鍵技術(shù)

5.1 mMIMO ········································242

5.2 高階調(diào)制（256QAM） ·················245

5.3 自適應(yīng)調(diào)制編碼 ····························247

5.4 新型多載波技術(shù) ····························249

5.5 移動邊緣計算 ································251

5.6 網(wǎng)絡(luò)切片 ·······································253

5.7 上下行解耦 ···································258

5.8 服務(wù)化架構(gòu) ···································262

5.9 信道編碼（Polar碼和LDPC） ·····263

5.10 CU-DU分離 ································263

5.11 CU云化部署 ·······························264

5.12 D2D ·············································265

5.13 NOMA ·········································266

第6章　無線網(wǎng)絡(luò)優(yōu)化

6.1 優(yōu)化概述 ·······································269

6.2 指標(biāo)和定義 ···································270

6.3 覆蓋優(yōu)化 ·······································273

6.4 接入性能優(yōu)化 ································275

6.5 掉線率優(yōu)化 ···································281

6.6 切換性能優(yōu)化 ································283

6.7 吞吐率優(yōu)化 ···································286

6.8 地鐵隧道優(yōu)化 ································291

附錄A　鏈路預(yù)算 ·················································································297

附錄B　信令流程圖 ·············································································300

附錄C　部分NSA消息 ········································································303

附錄D　NR規(guī)范描述 ···········································································343

附錄E　常用術(shù)語 ·················································································346

參考文獻 ······························································································355