【資料名稱】：EVDO系統(tǒng)詳解

【資料作者】：未知

【資料日期】：未知

【資料語言】：中文

【資料格式】：DOC

【資料目錄和簡介】：

第一章EVDO概述.......................................................................................................................1
1.1引言..........................................................................................................................................1
1.2EVDO的功能要求..................................................................................................................2
1.3EVDO的設(shè)計思想..................................................................................................................2
1.3.1時分復(fù)用.......................................................................................................................3
1.3.2多用戶調(diào)度...................................................................................................................4
1.3.3鏈路自適應(yīng)...................................................................................................................4
1.3.4HARQ...........................................................................................................................4
1.3.5速率控制.......................................................................................................................5
1.4EVDO網(wǎng)絡(luò)結(jié)構(gòu)......................................................................................................................6
1.4.1網(wǎng)絡(luò)構(gòu)成及其基本功能...............................................................................................6
1.4.2網(wǎng)絡(luò)接口協(xié)議及其功能...............................................................................................7
1.5EVDO的發(fā)展情況..................................................................................................................8
1.5.1標(biāo)準(zhǔn)化進(jìn)展...................................................................................................................8
1.5.2商用進(jìn)展.......................................................................................................................9
1.5.3市場前景.......................................................................................................................9
第二章EVDO空中接口.............................................................................................................11
2.1空中接口概述........................................................................................................................11
2.1.1空中接口協(xié)議棧模型.................................................................................................11
2.1.2空中接口協(xié)議通信方式.............................................................................................13
2.1.3空中接口信息傳送方式.............................................................................................13
2.2物理層....................................................................................................................................15
2.2.1前向信道.....................................................................................................................15
2.2.1.1前向信道劃分..................................................................................................15
2.2.1.2前向信道的時隙結(jié)構(gòu)......................................................................................16
2.2.1.3前向信道的標(biāo)識..............................................................................................16
2.2.1.4前向信道的物理結(jié)構(gòu)......................................................................................19
2.2.1.5前向業(yè)務(wù)/控制信道的參數(shù)配置和時隙復(fù)用.................................................22
2.2.2反向信道.....................................................................................................................25
2.2.2.1反向信道劃分..................................................................................................25
2.2.2.2接入信道物理結(jié)構(gòu)..........................................................................................26
2.2.2.3反向業(yè)務(wù)信道物理結(jié)構(gòu)..................................................................................28
2.2.2.4反向信道調(diào)制參數(shù)..........................................................................................33
2.2.2.5長碼生成與同步..............................................................................................34
2.3MAC 層.................................................................................................................................34
2.3.1MAC層協(xié)議功能.......................................................................................................34
2.3.2MAC層地址匹配.......................................................................................................34
2.3.3控制信道 MAC...........................................................................................................36
2.3.3.1控制信道 MAC 層數(shù)據(jù)封裝...........................................................................36
2.3.3.2控制信道 MAC 的傳送方式...........................................................................37
2.3.4接入信道 MAC...........................................................................................................38
2.3.4.1接入信道 MAC 層數(shù)據(jù)封裝...........................................................................38
2.3.4.2接入探針的結(jié)構(gòu)..............................................................................................39
2.3.4.3接入探針序列的結(jié)構(gòu)......................................................................................40
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2.3.4.4接入過程..........................................................................................................41
2.3.4.5接入信道長碼掩碼..........................................................................................42
2.3.4.6接入信道 MAC 層主要消息及其關(guān)鍵參數(shù)...................................................42
2.3.5前向業(yè)務(wù)信道 MAC...................................................................................................43
2.3.5.1前向業(yè)務(wù)信道 MAC 層數(shù)據(jù)封裝...................................................................43
2.3.5.2前向業(yè)務(wù)信道 MAC 協(xié)議狀態(tài)轉(zhuǎn)移流程.......................................................44
2.3.6反向業(yè)務(wù)信道 MAC...................................................................................................46
2.3.6.1反向業(yè)務(wù)信道 MAC 層數(shù)據(jù)封裝...................................................................46
2.3.6.2反向業(yè)務(wù)信道速率控制..................................................................................47
2.3.6.3反向鏈路靜默..................................................................................................49
2.3.6.4反向業(yè)務(wù)信道長碼..........................................................................................49
2.3.6.5反向業(yè)務(wù)信道 MAC 層主要消息及其關(guān)鍵參數(shù)...........................................49
2.4安全層....................................................................................................................................50
2.4.1安全層協(xié)議功能.........................................................................................................50
2.4.2安全層數(shù)據(jù)封裝.........................................................................................................50
2.4.3安全矢量.....................................................................................................................51
2.4.4密鑰交換.....................................................................................................................51
2.4.5空口鑒權(quán).....................................................................................................................53
2.4.6加密.............................................................................................................................54
2.5連接層....................................................................................................................................54
2.5.1連接層狀態(tài)機.............................................................................................................55
2.5.2連接管理.....................................................................................................................57
2.5.2.1連接建立..........................................................................................................57
2.5.2.2連接關(guān)閉..........................................................................................................57
2.5.3路徑更新.....................................................................................................................58
2.5.4分組合并.....................................................................................................................58
2.5.5開銷消息管理.............................................................................................................58
2.6會話層....................................................................................................................................59
2.6.1協(xié)議交互.....................................................................................................................59
2.6.2地址分配.....................................................................................................................61
2.6.2.1UATI的構(gòu)成...................................................................................................61
2.6.2.2UATI的分配...................................................................................................62
2.6.2.3UATI與移動性管理.......................................................................................62
2.6.3配置協(xié)商.....................................................................................................................62
2.7流層........................................................................................................................................63
2.8應(yīng)用層....................................................................................................................................64
2.8.1缺省信令應(yīng)用.............................................................................................................64
2.8.1.1信令網(wǎng)絡(luò)協(xié)議..................................................................................................64
2.8.1.2信令鏈路協(xié)議..................................................................................................65
2.8.2缺省分組應(yīng)用.............................................................................................................66
2.8.2.1無線鏈路協(xié)議..................................................................................................66
2.8.2.2位置更新協(xié)議..................................................................................................69
2.8.2.3流控協(xié)議..........................................................................................................70
2.9EVDO空中接口關(guān)鍵技術(shù)....................................................................................................71
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2.9.1自適應(yīng)調(diào)制編碼.........................................................................................................71
2.9.2HARQ.........................................................................................................................72
2.9.3多用戶調(diào)度.................................................................................................................73
2.9.3.1多用戶調(diào)度準(zhǔn)則..............................................................................................73
2.9.3.2比例公平調(diào)度算法..........................................................................................74
2.9.4速率控制.....................................................................................................................75
2.9.4.1前向鏈路速率控制..........................................................................................75
2.9.4.2反向鏈路速率控制..........................................................................................76
2.9.5功率控制.....................................................................................................................77
2.9.5.1前向鏈路功率分配原理及實現(xiàn)......................................................................77
2.9.5.2反向鏈路功率控制原理及實現(xiàn)......................................................................78
2.9.6虛擬軟切換.................................................................................................................79
第三章EVDO IOS功能介紹.....................................................................................................80
3.1功能概述................................................................................................................................80
3.1.1參考模型.....................................................................................................................80
3.1.2主要作用.....................................................................................................................80
3.1.2.1在接入鑒權(quán)中的作用......................................................................................81
3.1.2.2在移動性管理中的作用..................................................................................81
3.1.2.3在數(shù)據(jù)傳送中的作用......................................................................................81
3.2A8/A9接口功能....................................................................................................................82
3.2.1A8 連接建立...............................................................................................................82
3.2.2A8 連接重激活...........................................................................................................83
3.2.3A8 連接釋放...............................................................................................................83
3.2.4A8 連接參數(shù)更新.......................................................................................................84
3.2.5A9 接口消息的定時器參數(shù).......................................................................................85
3.3A10/A11 接口功能................................................................................................................85
3.3.1A10 連接建立.............................................................................................................85
3.3.2A10 連接釋放.............................................................................................................86
3.3.3計費信息傳送.............................................................................................................87
3.3.4A11 接口消息的定時器參數(shù).....................................................................................87
3.4A12 接口功能........................................................................................................................87
3.5A13 接口功能........................................................................................................................88
第四章EVDO數(shù)據(jù)呼叫流程.....................................................................................................90
4.1分組數(shù)據(jù)會話狀態(tài)................................................................................................................90
4.2HRPD會話建立、維持與關(guān)閉............................................................................................91
4.2.1HRPD 會話建立.........................................................................................................91
4.2.2HRPD 會話維持.........................................................................................................92
4.2.3HRPD 會話關(guān)閉.........................................................................................................92
4.2.3.1AT發(fā)起 HRPD 會話關(guān)閉（存在 A8 連接）................................................92
4.2.3.2AT發(fā)起 HRPD 會話關(guān)閉（不存在 A8 連接）............................................93
4.2.3.3AN發(fā)起 HRPD 會話關(guān)閉（存在 A8 連接）................................................94
4.2.3.4AN發(fā)起 HRPD 會話關(guān)閉（不存在 A8 連接）............................................94
4.3接入鑒權(quán)................................................................................................................................95
4.4位置更新................................................................................................................................96
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4.4.1AT 發(fā)起位置更新.......................................................................................................96
4.4.2AN 發(fā)起位置更新......................................................................................................97
4.5HRPD連接建立....................................................................................................................97
4.5.1AT 發(fā)起 HRPD 連接建立..........................................................................................98
4.5.2AT 發(fā)起 HRPD 連接重激活......................................................................................99
4.5.3PDSN 發(fā)起 HRPD 連接重激活...............................................................................100
4.6HRPD連接釋放..................................................................................................................101
4.6.1AT 發(fā)起 HRPD 連接釋放........................................................................................101
4.6.2AN 發(fā)起 HRPD 連接釋放.......................................................................................102
4.6.3PDSN 發(fā)起 HRPD 連接關(guān)閉...................................................................................102
4.7EVDO子網(wǎng)切換..................................................................................................................103
4.7.1相同 PCF下不同 AN之間的休眠切換..................................................................103
4.7.2相同 PDSN下不同 PCF之間休眠切換..................................................................104
4.7.3不同 PDSN之間休眠切換.......................................................................................106
第五章EVDO網(wǎng)絡(luò)安全機制...................................................................................................108
5.1EVDO網(wǎng)絡(luò)安全概述..........................................................................................................108
5.2空口安全機制......................................................................................................................108
5.3接入鑒權(quán)..............................................................................................................................109
5.3.1基于MD5 算法的鑒權(quán)方式....................................................................................110
5.3.2基于CAVE 算法的鑒權(quán)方式..................................................................................111
5.4核心網(wǎng)鑒權(quán)..........................................................................................................................113
5.5核心網(wǎng)數(shù)據(jù)保護(hù)..................................................................................................................115
第六章EVDO QoS機制..........................................................................................................116
6.1引言......................................................................................................................................116
6.2QoS評價指標(biāo).....................................................................................................................116
6.3QoS服務(wù)模型.....................................................................................................................117
6.4.1IntServ 服務(wù)模型......................................................................................................117
6.4.2DiffServ 服務(wù)模型....................................................................................................118
6.4.3IntServ 和 DiffServ相結(jié)合提供端到端的 QoS保證.............................................119
6.5端到端的 QoS體系結(jié)構(gòu).....................................................................................................120
6.5.1端到端的 QoS機制..................................................................................................120
6.5.2IP QoS機制..............................................................................................................121
6.5.3承載層與傳送層 QoS機制......................................................................................121
6.6EVDO QoS 實現(xiàn)機制.........................................................................................................122
6.6.1EVDO QoS 簡介......................................................................................................122
6.6.2EVDO Rel 0的 QoS 實現(xiàn)機制................................................................................123
6.6.3EVDO Rev A 的 QoS 機制......................................................................................123
6.6.3.1前向鏈路 QoS實現(xiàn)機制...............................................................................123
6.6.3.2反向鏈路 QoS實現(xiàn)機制...............................................................................125
第七章EVDO系統(tǒng)性能分析...................................................................................................126
7.1EVDO鏈路覆蓋分析..........................................................................................................126
7.1.1EVDO 鏈路覆蓋影響因素.......................................................................................126
7.1.1.1有效全向發(fā)射功率........................................................................................127
7.1.1.2接收機靈敏度................................................................................................128
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7.1.1.3接收天線增益與接收端損耗........................................................................129
7.1.1.4衰落余量........................................................................................................130
7.1.1.5軟切換增益....................................................................................................130
7.1.1.6分集增益........................................................................................................131
7.1.1.7地物穿透損耗................................................................................................131
7.1.2EVDO 前向鏈路預(yù)算...............................................................................................131
7.1.3EVDO 反向鏈路預(yù)算...............................................................................................134
7.1.4EVDO 系統(tǒng)前反向覆蓋差異性分析.......................................................................135
7.1.5EVDO 與 CDMA2000 1x 系統(tǒng)前反向覆蓋比較....................................................137
7.2EVDO系統(tǒng)容量分析..........................................................................................................138
7.2.1EVDO 系統(tǒng)容量影響因素分析...............................................................................139
7.2.2EVDO 前向容量分析...............................................................................................139
7.2.2.1鏈路開銷影響分析........................................................................................139
7.2.2.2多用戶調(diào)度影響分析....................................................................................140
7.2.2.3HARQ影響分析...........................................................................................142
7.2.2.4速率控制影響分析........................................................................................146
7.2.3EVDO 反向容量分析...............................................................................................147
7.2.4EVDO 前反向容量差異性分析...............................................................................148
7.2.5EVDO 與 CDMA2000 1x 前反向容量比較............................................................149
7.3EVDO鏈路覆蓋和系統(tǒng)容量前反向受限分析..................................................................150
第八章EVDO組網(wǎng)與混合終端操作.......................................................................................152
8.1組網(wǎng)方式..............................................................................................................................152
8.1.1單獨組網(wǎng)...................................................................................................................152
8.1.2混合組網(wǎng)...................................................................................................................152
8.1.2.1升級組網(wǎng)方案................................................................................................153
8.1.2.2疊加組網(wǎng)方案................................................................................................154
8.2混合終端操作......................................................................................................................156
8.2.1混合終端設(shè)置...........................................................................................................156
8.2.2混合終端選網(wǎng)...........................................................................................................156
8.2.2.1在接入層面上選網(wǎng)........................................................................................156
8.2.2.2在應(yīng)用層面上選網(wǎng)........................................................................................157
8.2.2.3開機選網(wǎng)........................................................................................................158
8.2.3兩網(wǎng)切換...................................................................................................................159
8.2.3.1混合覆蓋區(qū)內(nèi)的切換....................................................................................159
8.2.3.2混合覆蓋區(qū)邊緣的切換................................................................................164