第6 章 CDMA 系統功率控制機制.........................................................................................123
6.1 功率控制簡介..........................................................................................................124
6.1.1 功率控制算法分類........................................................................................125
6.1.2 影響功率控制性能的因素............................................................................127
6.1.3 功率控制算法在3G 標準中的定義.............................................................128
6.2 WCDMA 系統功率控制機制.................................................................................128
6.2.1 開環(huán)功率控制機制........................................................................................129
6.2.2 閉環(huán)功率控制................................................................................................132
6.2.3 外環(huán)功率控制................................................................................................133
6.3 TD-SCDMA 系統功率控制機制............................................................................134
6.3.1 開環(huán)功率控制算法........................................................................................134
6.3.2 閉環(huán)功率控制算法........................................................................................136
6.3.3 外環(huán)功率控制算法........................................................................................138
6.3.4 智能天線技術下的功率控制算法................................................................139
6.4 數據業(yè)務下的功率控制算法研究..........................................................................140
6.4.1 問題分析........................................................................................................140
6.4.2 功率控制和速率自適應聯合算法................................................................142
6.5 TDD-CDMA 系統快速閉環(huán)功率控制算法研究....................................................143
6.5.1 常規(guī)理論模型[19] .........................................................................................144
6.5.2 功率控制和多用戶檢測的聯合模型............................................................145
6.6 CDMA 系統外環(huán)功率控制算法研究.....................................................................147
6.6.1 傳統外環(huán)功率控制算法................................................................................148
6.6.2 改進的外環(huán)功率控制算法............................................................................148
6.6.3 自適應測量步長的外環(huán)功率控制算法........................................................149
6.6.4 仿真分析........................................................................................................150
6.7 本章小結..................................................................................................................154
參考文獻...............................................................................................................................154
第7 章 CDMA 系統切換控制機制.........................................................................................156
7.1 切換控制機制概述..................................................................................................157
7.1.1 切換控制算法分類........................................................................................157
7.1.2 切換控制流程................................................................................................158
7.2 FDD-CDMA 系統切換控制機制............................................................................160
7.2.1 硬切換技術....................................................................................................160
7.2.2 軟切換技術....................................................................................................163
7.2.3 軟切換的各種算法........................................................................................164
7.2.4 軟切換的性能................................................................................................167
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7.2.5 改進的軟切換技術SSDT .............................................................................170
7.3 基于智能天線技術的接力切換控制機制..............................................................173
7.3.1 接力切換執(zhí)行策略........................................................................................173
7.3.2 接力切換信令流程........................................................................................175
7.3.3 理論性能分析................................................................................................176
7.4 TDD-CDMA 系統切換控制機制............................................................................177
7.4.1 切換測量........................................................................................................177
7.4.2 切換流程........................................................................................................179
7.4.3 切換算法........................................................................................................179
7.4.4 基于全向天線的切換算法仿真分析............................................................180
7.4.5 基于智能天線技術的切換控制算法仿真分析............................................185
7.5 切換控制算法研究..................................................................................................186
7.5.1 請求排隊算法................................................................................................187
7.5.2 資源預留算法................................................................................................188
7.5.3 基于TDD-CDMA 的切換控制算法.............................................................189
7.5.4 仿真分析........................................................................................................191
7.6 本章小結..................................................................................................................192
參考文獻...............................................................................................................................192
第8 章 CDMA 系統動態(tài)信道分配機制.................................................................................195
8.1 蜂窩系統信道分配技術..........................................................................................196
8.1.1 同信道干擾和鄰信道干擾............................................................................196
8.1.2 信道分配模型................................................................................................198
8.1.3 信道分配方案................................................................................................199
8.2 蜂窩系統動態(tài)信道分配技術..................................................................................199
8.2.1 基于單業(yè)務DCA ..........................................................................................199
8.2.2 基于混合業(yè)務DCA ......................................................................................202
8.3 CDMA 系統碼管理機制.........................................................................................204
8.3.1 碼分配策略....................................................................................................204
8.3.2 動態(tài)碼分配算法............................................................................................205
8.3.3 WCDMA 信道化碼分配...............................................................................206
8.4 TDD-CDMA 系統下的DCA 機制.........................................................................210
8.4.1 DCA 算法分類..............................................................................................211
8.4.2 智能天線技術對DCA 的影響......................................................................212
8.5 TDD-CDMA 系統慢速DCA 機制研究.................................................................213
8.5.1 慢速DCA 算法研究.....................................................................................213
8.5.2 慢速DCA 算法策略.....................................................................................214
8.5.3 慢速DCA 算法仿真.....................................................................................215
8.6 信道調整快速DCA 機制研究................................................................................216
8.6.1 改進的信道調整快速DCA 算法..................................................................216
8.6.2 仿真分析........................................................................................................218
8.7 基于交叉時隙干擾的DCA 機制............................................................................219
8.7.1 基于最小干擾的DCA...................................................................................219
8.7.2 基于最小發(fā)射功率的DCA...........................................................................220
8.7.3 基于路徑損耗的抗基站間干擾DCA...........................................................220
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8.7.4 交叉時隙間干擾DCA 算法評估..................................................................221
8.8 本章小結..................................................................................................................222