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5G無線網絡優化實踐(新時代技術新未來) 版權信息
- ISBN：9787302570196
- 條形碼：9787302570196 ; 978-7-302-57019-6
- 裝幀：80g膠版紙
- 冊數：暫無
- 重量：暫無
- 所屬分類：>>
5G無線網絡優化實踐(新時代技術新未來) 本書特色
深入淺出講解5G網絡分享多年網絡優化經驗輕松掌握5G網絡精髓華信專家團隊和電信運營商專家聯合打造，深入淺出講解5G網絡，分享多年網絡優化經驗，輕松掌握5G網絡精髓
5G無線網絡優化實踐(新時代技術新未來) 內容簡介
本書對日常5G無線網絡維護和優化過程涉及的知識點進行梳理和系統介紹，側重介紹NR空口和信令流程，以及消息內容解析。本書內容涵蓋5G理論基礎、網絡架構、協議棧、空口信道、信令流程等。通過學習本書，讀者可以快諫堂握5G網絡的推薦知識，對5G網絡有一個完整、清晰的認識。 本書是作者根據自身多年的移動網絡優化學習經驗，圍繞運營商優化維護人員的需求編寫而成的。本書既可作為5G優化維護人員的工作指導用書，又可作為相關人員參加無線網絡協優認證考試的參考用書。
5G無線網絡優化實踐(新時代技術新未來) 目錄
目錄
第1章 網絡概述
1.1 網絡架構 ··········································6
1.1.1 接入網 ·············································7
1.1.2 核心網 ·············································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5G頻率分配 ·························26
1.3 無線幀結構 ·····································27
1.3.1 基本時間單位 ································27
1.3.2 無線幀結構 ···································28
1.4 協議棧 ·············································33
1.4.1 控制面 ···········································34
1.4.2 用戶面 ···········································40
1.5 組網方式 ·········································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 解調用參考信號 ····························80
2.8.2 探測用參考信號 ····························86
2.8.3 信道狀態參考信號 ························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 服務質量控制 ································123
3.4.1 QoS參數 ·····································124
3.4.2 QoS映射 ·····································127
3.5 開機入網流程 ································129
3.5.1 小區搜索 ·····································129
3.5.2 小區選擇 ·····································132
3.5.3 小區重選 ·····································135
3.5.4 注冊登記 ·····································138
3.6 鑒權過程和安全過程 ····················145
3.6.1 鑒權過程 ·····································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 業務建立流程 ································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業務流程 ·····························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調整過程 ·················204
3.11 空口主要消息 ······························205
3.11.1 SIB1消息內容解析 ···················208
3.11.2 SIB2消息內容解析 ···················213
3.11.3 SIB3消息內容解析 ···················215
3.11.4 SIB4消息內容解析 ···················215
3.11.5 SIB5消息內容解析 ···················217
第4章 參數定義
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 關鍵技術
5.1 mMIMO ········································242
5.2 高階調制（256QAM） ·················245
5.3 自適應調制編碼 ····························247
5.4 新型多載波技術 ····························249
5.5 移動邊緣計算 ································251
5.6 網絡切片 ·······································253
5.7 上下行解耦 ···································258
5.8 服務化架構 ···································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 無線網絡優化
6.1 優化概述 ·······································269
6.2 指標和定義 ···································270
6.3 覆蓋優化 ·······································273
6.4 接入性能優化 ································275
6.5 掉線率優化 ···································281
6.6 切換性能優化 ································283
6.7 吞吐率優化 ···································286
6.8 地鐵隧道優化 ································291
附錄A 鏈路預算 ·················································································297
附錄B 信令流程圖 ·············································································300
附錄C 部分NSA消息 ········································································303
附錄D NR規范描述 ···········································································343
附錄E 常用術語 ·················································································346
參考文獻 ······························································································355
展開全部
5G無線網絡優化實踐(新時代技術新未來) 作者簡介
張守國，正高級工程師，現任職于華信咨詢設計研究院有限公司，長期從事無線網絡優化工作，發表《大型場館容量設計思考》《干擾矩陣中的鄰區補償技術探討》等多篇論文，出版《LTE無線網絡優化實踐》《4G無線網絡原理及優化》兩本著作。 沈保華，高級工程師，省級運營商無線網優中心優化主管，運營商集團高級專家，長期從事無線網絡規劃優化工作，擁有豐富的移動通信領域從業經驗和2G/3G/4G/5G實戰經驗，曾獲全國移動通信5G技術職業技能競賽二等獎，發表論文多篇，出版著作一本。 李曙海，高級工程師，省級運營商無線網優中心副總經理，運營商集團B級人才，長期負責無線網絡規劃優化工作，擁有豐富的移動通信領域從業經驗和2G/3G/4G/5G實戰經驗，主持過2G/3G/4G/5G的多項規劃優化創新研究課題，發表論文十余篇，出版著作一本。 凌文杰，高級工程師，現任職于華信咨詢設計研究院有限公司，長期從事移動通信規劃設計、無線通信及頻譜技術研究，曾主持省部級重大科研項目兩項，發表論文十余篇。 雷志純，高級工程師，現任職于華信咨詢設計研究院有限公司，主要從事無線網絡優化和設計工作。
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