【資料名稱】：TD-SCDMA網(wǎng)絡優(yōu)化指導書

【資料作者】：aa

【資料日期】：2010

【資料語言】：中文

【資料格式】：PDF

【資料目錄和簡介】：

1 TD-SCDMA規(guī)劃指導.............................................................................................................7
1.1 TD-SCDMA無線網(wǎng)絡規(guī)劃設計流程.....................................................................7
1.2 信息搜集...................................................................................................................8
1.2.1 信息分類...........................................................................................................8
1.2.1.1 目標區(qū)域信息...................................................................................8
1.2.1.2 客戶已有網(wǎng)絡信息...........................................................................9
1.2.1.3 客戶的器件要求信息.......................................................................9
1.2.1.4 同地區(qū)其它運營商信息.................................................................10
1.3 無線網(wǎng)絡預規(guī)劃.....................................................................................................10
1.3.1 無線網(wǎng)絡預規(guī)劃流程.....................................................................................10
1.3.2 無線網(wǎng)絡估算.................................................................................................10
1.3.3 初始站點選擇................................................................................................. 11
1.3.4 系統(tǒng)仿真.........................................................................................................13
1.3.4.1 仿真前的準備工作.........................................................................13
1.3.4.2 仿真參數(shù)設置步驟.........................................................................13
1.3.4.3 話務地圖分析.................................................................................14
1.3.4.4 仿真結果分析.................................................................................14
1.4 無線網(wǎng)絡小區(qū)規(guī)劃.................................................................................................15
1.5 區(qū)域規(guī)劃.................................................................................................................16
1.5.1 RNC區(qū)規(guī)劃...................................................................................................16
1.5.1.1 RNC區(qū)規(guī)劃流程...................................................................................16
1.5.1.2 RNC區(qū)規(guī)劃原則...................................................................................17
1.5.1.3 RNC區(qū)規(guī)劃方法...................................................................................19
1.5.2 尋呼區(qū)規(guī)劃.....................................................................................................19
1.5.2.1 尋呼區(qū)規(guī)劃流程.............................................................................20
1.5.2.2 尋呼區(qū)規(guī)劃原則.............................................................................20
1.5.3 服務區(qū)(SA)規(guī)劃.............................................................................................21
1.6 鄰區(qū)規(guī)劃.................................................................................................................21
1.6.1 鄰區(qū)規(guī)劃分析.................................................................................................21
1.6.1.1 鄰區(qū)規(guī)劃原則.................................................................................21
1.6.1.2 異系統(tǒng)鄰區(qū)規(guī)劃分析.....................................................................22
1.7 頻點規(guī)劃.................................................................................................................22
1.7.1 頻率復用.........................................................................................................22
1.7.1.1 頻率復用距離.................................................................................22
1.7.1.2 同頻復用比.....................................................................................22
1.7.2 干擾對移動網(wǎng)絡的影響.................................................................................23
1.7.2.1 同頻干擾.........................................................................................23
1.7.2.2 異頻干擾.........................................................................................23
1.7.3 頻率規(guī)劃原理.................................................................................................23
1.7.4 N頻點組網(wǎng)頻率規(guī)劃.....................................................................................23
1.7.4.1 N頻點技術.............................................................................................23
1.7.4.2 N頻點組網(wǎng)的頻率規(guī)劃.........................................................................24
TD-SCDMA網(wǎng)絡優(yōu)化指導書
第3頁
1.7.5 N頻點規(guī)劃方法.............................................................................................25
1.7.5.1 5M同頻組網(wǎng)..........................................................................................25
1.7.5.2 10M頻率組網(wǎng)........................................................................................25
1.8 擾碼規(guī)劃.................................................................................................................27
1.8.1 擾碼規(guī)劃分析.................................................................................................27
1.8.1.1 TD-SCDMA碼資源...............................................................................27
1.8.1.2 碼資源相關性分析.........................................................................28
1.8.1.3 規(guī)劃原則.........................................................................................29
1.8.1.4 擾碼分配.........................................................................................30
1.9 總結.........................................................................................................................30
2 TD-SCDMA優(yōu)化指導...........................................................................................................31
2.1 TD-SCDMA無線網(wǎng)絡優(yōu)化概論...........................................................................31
2.1.1 無線網(wǎng)絡優(yōu)化的意義.....................................................................................31
2.1.2 TD-SCDMA與WCDMA網(wǎng)絡優(yōu)化的區(qū)別.................................................31
2.1.3 網(wǎng)絡優(yōu)化與規(guī)劃設計的關系.........................................................................31
2.1.4 規(guī)劃軟件與實際優(yōu)化的結合.........................................................................32
2.2 TD-SCDMA無線網(wǎng)絡優(yōu)化原則...........................................................................33
2.2.1 網(wǎng)絡優(yōu)化流程.................................................................................................33
2.2.2 最佳的系統(tǒng)覆蓋.............................................................................................33
2.2.3 合理的切換帶的控制.....................................................................................33
2.2.4 系統(tǒng)干擾最小.................................................................................................33
2.2.5 均勻合理的基站負荷.....................................................................................33
2.3 TD-SCDMA無線網(wǎng)絡優(yōu)化步驟和手段...............................................................34
2.3.1 確定優(yōu)化目標.................................................................................................34
2.3.2 單站驗證.........................................................................................................35
2.3.3 劃分Cluster ....................................................................................................35
2.3.4 確定測試路線.................................................................................................35
2.3.5 準備工具和資料.............................................................................................35
2.3.6 覆蓋優(yōu)化.........................................................................................................36
2.3.6.1 數(shù)據(jù)采集.........................................................................................37
2.3.6.2 RF優(yōu)化...................................................................................................37
2.3.6.3 公用信道參數(shù)優(yōu)化.........................................................................38
2.3.6.4 導頻污染的優(yōu)化.............................................................................38
2.3.6.5 弱覆蓋的優(yōu)化.................................................................................39
2.3.6.6 越區(qū)覆蓋的優(yōu)化.............................................................................40
2.3.7 網(wǎng)絡質(zhì)量的優(yōu)化.............................................................................................40
2.3.7.1 數(shù)據(jù)采集.........................................................................................40
2.3.7.2 小區(qū)選擇與重選參數(shù)。.................................................................41
2.3.7.3 接入相關參數(shù)。.............................................................................41
2.3.7.4 切換控制參數(shù).................................................................................41
2.3.7.5 功率控制參數(shù).................................................................................41
2.4 直放站的優(yōu)化.........................................................................................................42
2.5 2G/3G 互操作優(yōu)化.................................................................................................42
2.5.1 TD 到2G 重選...............................................................................................43
TD-SCDMA網(wǎng)絡優(yōu)化指導書
第4頁
2.5.2 2G 到TD 重選流程........................................................................................43
2.5.3 TD 到2G 切換流程........................................................................................44
2.5.4 PS域的切換流程：.......................................................................................48
3 TD-SCDMA基礎知識...........................................................................................................48
3.1 TD-SCDMA基本原理...........................................................................................48
3.2 TD-SCDMA關鍵技術介紹及其對網(wǎng)絡規(guī)劃優(yōu)化方面的影響...........................49
3.2.1 TD-SCDMA系統(tǒng)的技術特點概述...............................................................49
3.2.2 聯(lián)合檢測.........................................................................................................50
3.2.2.1 CDMA系統(tǒng)中的干擾............................................................................50
3.2.2.2 小區(qū)間干擾.....................................................................................50
3.2.2.3 干擾帶來的問題.............................................................................51
3.2.2.4 聯(lián)合檢測的定義.............................................................................51
3.2.2.5 系統(tǒng)實現(xiàn)中用到的聯(lián)合檢測.........................................................51
3.2.2.6 聯(lián)合檢測的優(yōu)點及發(fā)展.................................................................53
3.2.2.7 聯(lián)合檢測與智能天線相結合：.....................................................53
3.2.3 智能天線.........................................................................................................54
3.2.3.1 智能天線的基本概念.....................................................................54
3.2.3.2 智能天線的優(yōu)點.............................................................................54
3.2.3.3 智能天線系統(tǒng)的組成.....................................................................56
3.2.3.4 智能天線系統(tǒng)的技術實現(xiàn).............................................................58
3.2.3.5 智能天線系統(tǒng)的校準.....................................................................59
3.2.3.6 智能天線賦形算法簡介.................................................................60
3.2.3.7 TD-SCDMA系統(tǒng)中用到的賦形算法：...............................................61
3.2.4 上行同步控制.................................................................................................63
3.2.4.1 上行同步概述.................................................................................63
3.2.5 動態(tài)信道分配DCA.......................................................................................65
3.2.5.1 無線資源管理的基本概念.............................................................65
3.2.5.2 動態(tài)信道分配.................................................................................67
3.2.6 接力切換.........................................................................................................68
3.2.6.1 切換的基本概念.............................................................................68
3.2.6.2 觸發(fā)切換的原因.............................................................................68
3.2.6.3 切換的分類.....................................................................................69
3.2.6.4 TD-SCDMA系統(tǒng)中的切換...................................................................69
3.2.6.4.1 切換的基本過程.....................................................................69
3.2.6.4.2 測量過程.................................................................................70
3.2.6.4.3 判決過程.................................................................................75
3.2.6.4.4 執(zhí)行過程.................................................................................76
3.3 TD-SCDMA網(wǎng)絡規(guī)劃的特點...............................................................................79
3.4 TD-SCDMA中N 頻點介紹及其對網(wǎng)絡規(guī)劃、優(yōu)化方面的影響......................80
3.4.1 TD-SCDMA網(wǎng)絡中N 頻點介紹..................................................................80
3.4.2 N頻點對網(wǎng)絡規(guī)劃的影響.............................................................................80
3.4.3 N頻點對網(wǎng)絡優(yōu)化的影響.............................................................................81
3.5 3GPP規(guī)范下載......................................................................................................81
4 TD-SCDMA無線參數(shù)...........................................................................................................81
TD-SCDMA網(wǎng)絡優(yōu)化指導書
第5頁
4.1 參數(shù)使用說明.........................................................................................................81
4.2 切換（HO）...........................................................................................................82
4.2.1 算法原理.........................................................................................................82
4.2.1.1 背景描述.........................................................................................82
4.2.1.2 原理介紹.........................................................................................82
4.2.2 算法參數(shù).........................................................................................................83
4.2.2.1 小區(qū)偏置.........................................................................................83
4.2.2.2 面向RNC的切換公共參數(shù)...........................................................84
4.2.2.2.1 D2H 同頻切換保護時長........................................................84
4.2.2.2.2 D2H 異頻切換保護時長........................................................84
4.2.2.3 同頻切換.........................................................................................85
4.2.2.3.1 同頻測量層三濾波系數(shù).........................................................85
4.2.2.3.2 過濾系數(shù).................................................................................86
4.2.2.3.3 同頻測量報告周期.................................................................86
4.2.2.3.4 小區(qū)遲滯.................................................................................87
4.2.2.3.5 小區(qū)觸發(fā)時間.........................................................................87
4.2.2.3.6 1G 遲滯時間...........................................................................88
4.2.2.3.7 1G 事件觸發(fā)時間...................................................................89
4.2.2.4 異頻切換.........................................................................................90
4.2.2.4.1 異頻測量層三濾波系數(shù).........................................................90
4.2.2.4.2 2D 遲滯...................................................................................91
4.2.2.4.3 2D 事件延遲觸發(fā)時間...........................................................92
4.2.2.4.4 2F遲滯...................................................................................92
4.2.2.4.5 2F事件延遲觸發(fā)時間............................................................93
4.2.2.4.6 異頻切換CS業(yè)務2D 報告門限...........................................94
4.2.2.4.7 異頻切換CS業(yè)務2F報告門限............................................95
4.2.2.4.8 PS非H 業(yè)務異頻測量RSCP啟動門限...............................96
4.2.2.4.9 PS非H 業(yè)務異頻測量RSCP停止門限...............................96
4.2.2.4.10 H業(yè)務異頻測量RSCP啟動門限.........................................97
4.2.2.4.11 H業(yè)務異頻測量RSCP停止門限.........................................98
4.2.2.4.12 2A遲滯...................................................................................99
4.2.2.4.13 2A事件觸發(fā)時間...................................................................99
4.2.2.4.14 小區(qū)遲滯...............................................................................100
4.2.2.4.15 異頻小區(qū)觸發(fā)時間...............................................................101
4.2.2.4.16 報告周期...............................................................................101
4.3 上行外環(huán)功控（OLPC）....................................................................................102
4.3.1 算法原理.......................................................................................................102
4.3.1.1 背景描述.......................................................................................102
4.3.1.2 原理介紹.......................................................................................102
4.3.2 算法參數(shù).......................................................................................................103
4.3.2.1 外環(huán)功率類參數(shù)...........................................................................103
4.3.2.1.1 信干比初始目標值[dB]........................................................103
4.3.2.1.2 最大SIR目標值 [dB] .........................................................103
4.3.2.1.3 最小SIR目標值 [dB] .........................................................104
TD-SCDMA網(wǎng)絡優(yōu)化指導書
第6頁
4.3.2.1.4 外環(huán)功率調(diào)整周期...............................................................105
4.3.2.1.5 SIR最大上調(diào)步長................................................................105
4.3.2.1.6 SIR最大下調(diào)步長................................................................106
4.3.2.1.7 基于BLER的SIR上調(diào)步長..............................................106
4.3.2.1.8 基于BLER的SIR下調(diào)步長..............................................107
4.3.2.1.9 測量SIR所用的濾波系數(shù)...................................................108
4.3.2.1.10 檢驗SIR收斂的門限值.......................................................108
4.3.2.1.11 SIR測量報告周期................................................................109
4.3.2.1.12 觸發(fā)SIR錯誤報告的遲滯時間...........................................109
4.4 其他參數(shù)............................................................................................................... 110
4.4.1 RNC各主要定時器的使用.......................................................................... 110
4.4.1.1 定時器介紹................................................................................... 110
4.4.1.2 定時器詳述................................................................................... 110
4.4.1.2.1 UE 相關的空閑模式下定時器參數(shù)..................................... 110
4.4.1.2.2 UE 相關的連接模式下定時器參數(shù)..................................... 113
4.4.1.2.3 RNC相關的呼叫流程狀態(tài)保護定時器參數(shù)......................122
5 TD-SCDMA規(guī)劃工具.........................................................................................................136
5.1 U-net軟件介紹....................................................................................................136
5.1.1 關鍵特性.......................................................................................................136
5.1.2 模塊化配置...................................................................................................137
5.1.3 網(wǎng)絡規(guī)劃與優(yōu)化平臺...................................................................................138
5.1.3.1 GIS功能...............................................................................................138
5.1.3.2 信號傳播模型...............................................................................139
5.1.3.3 用戶和數(shù)據(jù)庫管理.......................................................................139
5.1.3.4 任務自動操作及腳本...................................................................140
5.1.3.5 分布式算法...................................................................................140
5.1.3.6 打印和報告生成...........................................................................140
5.1.3.7 測量模塊（可選）.......................................................................141
5.1.4 TD-SCDMA..................................................................................................141
5.1.4.1 網(wǎng)絡建模.......................................................................................141
5.1.4.2 話務流量建模...............................................................................141
5.1.4.3 1.4.3 仿真和分析.................................................................................141
5.1.4.4 智能天線建模...............................................................................142
5.1.4.5 鄰小區(qū)和擾碼規(guī)劃.......................................................................142
5.1.4.6 2G/3G 共網(wǎng)規(guī)劃...................................................................................142
6 TD-SCDMA優(yōu)化案例.........................................................................................................142
6.1 弱覆蓋引起掉話...................................................................................................142
6.2 乒乓切換引起掉話...............................................................................................144
6.3 信號波動引起掉話...............................................................................................145
6.4 越區(qū)覆蓋引起掉話...............................................................................................147
6.5 干擾引起掉話.......................................................................................................148
6.6 由于質(zhì)量差引起的掉話.......................................................................................150
6.7 室內(nèi)分布系統(tǒng)切換成功率低...............................................................................151