【資料名稱】：京滬高鐵GSM網(wǎng)絡(luò)優(yōu)化指導(dǎo)書(shū)

【資料作者】：H

【資料日期】：2011.12

【資料語(yǔ)言】：中文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

目 錄
1 優(yōu)化指導(dǎo)原則...........................................................................................................................4
1.1 基站布局對(duì)網(wǎng)絡(luò)的影響...............................................................................................4
1.1.1 基站到鐵軌的距離...........................................................................................4
1.1.2 重選切換區(qū)域設(shè)置原則...................................................................................4
1.1.3 兼顧覆蓋高鐵站的影響...................................................................................5
1.2 天饋設(shè)置方法及原則...................................................................................................5
1.2.1 天線高度...........................................................................................................5
1.2.2 天線類型...........................................................................................................5
1.2.3 天線入射角.......................................................................................................6
1.3 無(wú)線參數(shù)的優(yōu)化...........................................................................................................6
1.3.1 空閑模式參數(shù)優(yōu)化...........................................................................................6
1.3.2 連接模式參數(shù)優(yōu)化...........................................................................................7
1.3.3 切換相關(guān)參數(shù)優(yōu)化...........................................................................................8
1.4 優(yōu)化目標(biāo).......................................................................................................................9
2 高鐵優(yōu)化流程...........................................................................................................................9
2.1 網(wǎng)絡(luò)現(xiàn)狀分析及基礎(chǔ)信息核查.................................................................................11
2.1.1 基礎(chǔ)數(shù)據(jù)庫(kù)的核查和定期維護(hù).....................................................................11
2.1.2 網(wǎng)絡(luò)評(píng)估測(cè)試分析.........................................................................................11
2.1.3 網(wǎng)絡(luò)無(wú)線參數(shù)核查.........................................................................................11
2.1.4 高鐵規(guī)劃站點(diǎn)的進(jìn)度核查.............................................................................11
2.2 網(wǎng)絡(luò)結(jié)構(gòu)梳理.............................................................................................................12
2.2.1 現(xiàn)網(wǎng)覆蓋小區(qū)序列分析及優(yōu)化.....................................................................12
2.2.2 主要性能評(píng)估分析.........................................................................................12
2.2.3 當(dāng)前主要問(wèn)題的整理和匯總.........................................................................12
2.3 問(wèn)題識(shí)別及優(yōu)化處理.................................................................................................12
2.3.1 覆蓋問(wèn)題.........................................................................................................13
2.3.2 接入問(wèn)題.........................................................................................................14
2.3.3 掉話問(wèn)題.........................................................................................................15
2.3.4 切換/重選問(wèn)題...............................................................................................16
2.3.5 業(yè)務(wù)質(zhì)量問(wèn)題.................................................................................................17
2.4 建立京滬高鐵網(wǎng)絡(luò)日常監(jiān)控及優(yōu)化制度.................................................................17
3 優(yōu)化案例.................................................................................................................................17
3.1 語(yǔ)音質(zhì)量差-天饋調(diào)整...............................................................................................17
3.2 切換不及時(shí)-小區(qū)合并...............................................................................................18
3.3 掉話-修改小區(qū)層級(jí)...................................................................................................19
3.4 掉話-調(diào)整切換門限...................................................................................................21
4 徐州和棗莊優(yōu)化前后效果對(duì)比.............................................................................................22
4.1 徐州段.........................................................................................................................22
4.2 棗莊段.........................................................................................................................23
附錄................................................................................................................................................24
附件1-重選時(shí)間計(jì)算分析....................................................................................................24
附件2-高速列車穿透損耗測(cè)試報(bào)告....................................................................................24
附件3-BS_PA_MFRMS的設(shè)置分析........................................................................................25
附件4-高鐵站點(diǎn)信息及管控表............................................................................................25
附件5-京滬線高鐵測(cè)試規(guī)范................................................................................................25