【資料名稱】：W-RF優(yōu)化指導(dǎo)書

【資料作者】：cjh

【資料日期】：2008

【資料語言】：中文

【資料格式】：DOC/DOCX

【資料目錄和簡介】：

目 錄
1
概述...........................................................................................................................................8
2
RF優(yōu)化的基本流程....................................................................................................................8
3
測試準(zhǔn)備 ...................................................................................................................................9
3.1
確立優(yōu)化目標(biāo)......................................................................................................................9
3.2
劃分Cluster或簇................................................................................................................10
3.3
確定測試路線....................................................................................................................11
3.4
準(zhǔn)備工具和資料.................................................................................................................12
3.4.1
軟件準(zhǔn)備......................................................................................................................12
3.4.2
硬件準(zhǔn)備......................................................................................................................12
3.4.3
資料準(zhǔn)備......................................................................................................................12
4
數(shù)據(jù)采集 .................................................................................................................................13
4.1
DT 測試............................................................................................................................13
4.2
室內(nèi)測試 ...........................................................................................................................13
4.3
RNC配置數(shù)據(jù)采集............................................................................................................14
5
覆蓋問題分析..........................................................................................................................14
5.1
覆蓋問題分類和常用措施..................................................................................................14
5.1.1
弱覆蓋.........................................................................................................................14
5.1.2
越區(qū)覆蓋......................................................................................................................15
5.1.3
上下行不平衡..............................................................................................................15
5.1.4
無主導(dǎo)小區(qū)..................................................................................................................16
5.2
覆蓋分析流程....................................................................................................................16
5.2.1
下行覆蓋分析..............................................................................................................16
5.2.2
上行覆蓋分析..............................................................................................................18
5.3
覆蓋問題案例....................................................................................................................19
5.3.1
工程參數(shù)設(shè)置不當(dāng)導(dǎo)致弱覆蓋案例 .............................................................................19
5.3.2
站址選擇不當(dāng)導(dǎo)致的越區(qū)覆蓋問題 .............................................................................20
5.3.3
天線安裝不合理導(dǎo)致的覆蓋受限問題..........................................................................21
6
導(dǎo)頻污染問題分析...................................................................................................................22
6.1
導(dǎo)頻污染定義和判決標(biāo)準(zhǔn)..................................................................................................23
6.2
產(chǎn)生原因及影響分析.........................................................................................................23
6.2.1
產(chǎn)生原因分析..............................................................................................................23
6.2.2
影響分析......................................................................................................................24
6.3
導(dǎo)頻污染優(yōu)化方法.............................................................................................................24
6.3.1
天線調(diào)整......................................................................................................................24
6.3.2
導(dǎo)頻功率調(diào)整..............................................................................................................25
6.3.3
采用RRU或微小區(qū) ......................................................................................................26
6.4
導(dǎo)頻污染問題分析流程......................................................................................................27
6.5
導(dǎo)頻污染優(yōu)化舉例.............................................................................................................28
6.5.1
優(yōu)化前數(shù)據(jù)分析...........................................................................................................28
6.5.2
優(yōu)化后數(shù)據(jù)分析...........................................................................................................32
7
切換問題分析..........................................................................................................................34
7.1
鄰區(qū)關(guān)系如何優(yōu)化.............................................................................................................34
7.1.1
根據(jù)路測結(jié)果分析.......................................................................................................34
7.1.2
冗余鄰區(qū)刪除..............................................................................................................37
7.2
軟切換比例分析.................................................................................................................38
7.2.1
軟切換比例的定義.......................................................................................................38