【資料名稱】：愛立信GSM無線網(wǎng)絡優(yōu)化指導書

【資料作者】：張春明 李雅琳 吳基淑 陳剛 伍儀勝

【資料日期】：2008

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

1無線網(wǎng)絡優(yōu)化概述.................................................................................................6
1.1無線網(wǎng)絡優(yōu)化的基本內(nèi)容 ............................................7
1.1.1網(wǎng)絡指標優(yōu)化...........................................................................................7
1.1.2用戶可以感知的網(wǎng)絡性能的優(yōu)化...............................................................8
1.1.3疑難問題的處理與解決.............................................................................8
1.2無線網(wǎng)絡優(yōu)化基本流程..............................................8
1.2.1網(wǎng)絡性能的勘查與數(shù)據(jù)收集......................................................................8
1.2.1.1小區(qū)數(shù)據(jù)的收集（CDD的收集）..........................................................9
1.2.1.2統(tǒng)計數(shù)據(jù)的收集...................................................................................11
1.2.1.3路測文件、CQT數(shù)據(jù)的收集...............................................................11
1.2.2小區(qū)數(shù)據(jù)的一致性檢查...........................................................................12
1.2.3BSC的PROPERTY的檢查與修改 ...............................................................12
1.2.4SAE的檢查..............................................................................................15
1.2.5STS統(tǒng)計的檢查.......................................................................................16
1.2.6頻率和鄰區(qū)的檢查和修改........................................................................16
1.2.7無線功能的檢查和修改...........................................................................17
1.2.8路測分析.................................................................................................17
2無線統(tǒng)計概述 ......................................................................................................19
2.1建議收集的無線STS 統(tǒng)計...........................................23
2.1.1BSC級別 .................................................................................................23
2.1.1.1BSC....................................................................................................23
2.1.1.2LOAS..................................................................................................23
2.1.2小區(qū)(級別)的Object Type.....................................................................24
2.1.2.1CELLCCHDR .....................................................................................24
2.1.2.2CELLCCHHO.....................................................................................24
2.1.2.3CELCONF ..........................................................................................25
2.1.2.4CELEVENTD......................................................................................25
2.1.2.5CELEVENTH......................................................................................25
2.1.2.6CELEVENTI .......................................................................................26
2.1.2.7CELEVENTS ......................................................................................26
2.1.2.8CLSDCCH..........................................................................................27
2.1.2.9CLTCH ...............................................................................................27
2.1.2.10CELTCHF...........................................................................................28
2.1.2.11CLTCHDRF ........................................................................................29
2.1.2.12DOWNTIME........................................................................................30
2.1.2.13IDLEUTCHF .......................................................................................30
2.1.2.14CELLSQI *..........................................................................................30
2.1.2.15CELLHCS...........................................................................................31
2.1.2.16RANDOMACC....................................................................................31
2.1.3與鄰區(qū)相關的Object Types ...................................................................31
2.1.3.1NCELLREL.........................................................................................32
2.1.3.2NECELLREL ......................................................................................322.1.3.3NECELHO..........................................................................................32
2.1.3.4NICELASS .........................................................................................32
2.1.3.5NECELASS........................................................................................33
2.1.3.6NICELHO ...........................................................................................33
2.2STS統(tǒng)計的提取與處理.............................................34
2.2.1STS統(tǒng)計的定義.......................................................................................34
2.2.1.1設置包含的 Object Type ....................................................................34
2.2.1.2統(tǒng)計文件的定義...................................................................................35
2.2.2統(tǒng)計文件的提取......................................................................................39
2.2.2.1通過 OSS提取....................................................................................39
2.2.2.2通過終端提取......................................................................................40
2.2.2.3通過 IOG的光盤驅(qū)動器提取 ...............................................................40
2.2.3統(tǒng)計文件的處理......................................................................................41
2.3無線KPI公式.....................................................41
2.3.1BSC級別的統(tǒng)計.......................................................................................41
2.3.2隨機接入統(tǒng)計的公式...............................................................................42
2.3.3SDCCH的統(tǒng)計公式...................................................................................42
2.3.4TCH統(tǒng)計公式..........................................................................................43
2.3.5和切換有關的統(tǒng)計公式...........................................................................44
2.3.6與掉話原因相關的統(tǒng)計...........................................................................44
2.4CMCC統(tǒng)計公式介紹................................................45
2.4.1CMCC所要求的計數(shù)器和愛立信相對應的計數(shù)器......................................45
2.4.2CMCC所考核的設計無線的指標...............................................................50
3無線網(wǎng)絡優(yōu)化中的指標優(yōu)化.................................................................................52
3.1概述............................................................. 52
3.2隨機接入性能.....................................................54
3.2.1概述........................................................................................................54
3.2.2相關的計數(shù)器及公式...............................................................................54
3.2.3隨機接入分析.........................................................................................55
3.2.3.1隨機接入原因分析...............................................................................55
3.2.3.2隨機接入性能分析...............................................................................56
3.2.4隨機接入處理流程..................................................................................58
3.3SDCCH擁塞 .......................................................60
3.3.1概述........................................................................................................60
3.3.2在SDCCH上所發(fā)生的事件........................................................................60
3.3.2.1正常的位置更新...................................................................................61
3.3.2.2IMSI Attach/Detach ...........................................................................61
3.3.2.3周期性位置更新...................................................................................61
3.3.2.4呼叫建立.............................................................................................62
3.3.2.5短消息.................................................................................................62
3.3.3SDCCH的配置..........................................................................................62
3.3.3.1SDCCH的配置類型............................................................................63.3.3.2SDCCH的配置方式及相關參數(shù)..........................................................63
3.3.4相關的計算器及公式...............................................................................65
3.3.5SDCCH擁塞的分析...................................................................................65
3.3.6解決SDCCH擁塞的流程...........................................................................67
3.4SDCCH掉話 .......................................................69
3.4.1概述........................................................................................................69
3.4.2相關的計數(shù)器及公式...............................................................................69
3.4.3SDCCH掉話率分析...................................................................................70
3.4.4SDCCH掉話的分析流程............................................................................72
3.5TCH的擁塞.......................................................74
3.5.1概述........................................................................................................74
3.5.2相關的計數(shù)器及公式...............................................................................74
3.5.3TCH擁塞分析..........................................................................................75
3.5.3.1檢查硬件的可用率...............................................................................75
3.5.3.2檢查話務量的趨勢...............................................................................75
3.5.3.3檢查天線的位置...................................................................................75
3.5.3.4檢查 HCS的使用及相關參數(shù) ..............................................................76
3.5.3.5檢查擁塞小區(qū)周圍的小區(qū)是否擁塞......................................................76
3.5.3.6進行小區(qū)的擴容...................................................................................76
3.5.4解決TCH擁塞的分析流程........................................................................76
3.6TCH掉話.........................................................78
3.6.1概述........................................................................................................78
3.6.2相關的計數(shù)器及公式...............................................................................79
3.6.3TCH掉話分析..........................................................................................82
3.6.3.1檢查 LOCATING參數(shù)的設置..............................................................82
3.6.3.2檢查無線功能參數(shù)...............................................................................82
3.6.3.3檢查小區(qū)的輸出功率...........................................................................83
3.6.3.4檢查掉話原因......................................................................................83
3.6.3.5檢查切換過程中的掉話........................................................................87
3.6.3.6檢查基站的位置...................................................................................87
3.6.3.7檢查基站的告警...................................................................................87
3.6.3.8檢查傳輸質(zhì)量......................................................................................87
3.6.3.9檢查是否部分區(qū)域無主覆蓋.................................................................87
3.6.3.10進行路測.............................................................................................87
3.6.3.11進行現(xiàn)場勘測......................................................................................88
3.6.4解決TCH掉話的流程...............................................................................88
3.7切換性能.........................................................91
3.7.1概述........................................................................................................91
3.7.2相關的計數(shù)器及公式...............................................................................93
3.7.3切換性能分析.........................................................................................94
3.7.3.1引起切換性能較差的原因....................................................................943.7.3.2切換性能分析......................................................................................94
3.7.4解決切換問題的流程...............................................................................95
4客戶可感知的網(wǎng)絡性能的優(yōu)化 .............................................................................98
4．1DT、CQT測試分析工具和數(shù)據(jù)收集....................................98
4.1.1測試工具......................................................................................................98
4.1.2數(shù)據(jù)收集.................................................................................................98
4.1.3收集數(shù)據(jù)處理.......................................................................................100
4．2DT分析與問題解決................................................ 109
4.2.1 城市DT的分析...........................................................................................109
4.2.2高速 DT的分析..........................................................................................126
4.2.3鐵路 DT的分析..........................................................................................133
5無線網(wǎng)絡優(yōu)化中的功能與參數(shù)設置....................................................................141
5.1GSM網(wǎng)絡中常用的無線功能.........................................141
5.2空閑模式的主要參數(shù)設置 ..........................................141
5.3專用模式下功能與參數(shù)設置 ........................................149
5.4動態(tài)功率控制與參數(shù)設置 ..........................................161
5.5其他功能的設置..................................................165
6無線網(wǎng)絡優(yōu)化中的頻率規(guī)劃原則........................................................................170
6.1無線電波和天線..................................................170
6.2傳播模型........................................................176
6.3小區(qū)覆蓋........................................................182
6.4頻率規(guī)劃........................................................192
7優(yōu)化中常見問題的處理......................................................................................203
7.1高層建筑覆蓋分析................................................203
7.2XX商廈頻點調(diào)整 ...................................................206
7.3小區(qū)干擾和越區(qū)覆蓋的問題 ........................................207
7.4同頻干擾的問題..................................................210
7.5下行干擾問題....................................................212
7.6上行干擾問題....................................................214
7.7切換返回問題....................................................217
7.8邊界問題........................................................221
7.9SDCCH高掉話問題..................................................225
7.10TCH高掉話問題 ..................................................227
7.11切換返回率高的問題..............................................228
8無線優(yōu)化中常用的工具簡介...............................................................................230
8.1IPOS、SPOS、和 Turtle ...........................................230
8.1.1IPOS......................................................................................................230
8.1.2SPOS......................................................................................................230
8.1.3Turtle ..................................................................................................231
8.2MCOM的應用 .....................................................232
8.2.1頻率規(guī)劃的應用....................................................................................232