【資料名稱(chēng)】：GSM干擾分析-華為

【資料作者】：華為

【資料日期】：2012

【資料語(yǔ)言】：中文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

目錄
課程說(shuō)明.......................................................................................................................................1
課程介紹.......................................................................................................................................1
課程目標(biāo).......................................................................................................................................1
相關(guān)資料.......................................................................................................................................1
第 1章概述...................................................................................................................................2
1.1 干擾對(duì)網(wǎng)絡(luò)的影響..................................................................................................................2
第 2章干擾源...............................................................................................................................3
2.1 干擾源分類(lèi).............................................................................................................................3
2.1.1 自然噪聲......................................................................................................................3
2.1.2 人為噪聲......................................................................................................................3
2.2 對(duì)移動(dòng)通信有主要影響的干擾源............................................................................................4
第 3章干擾問(wèn)題的發(fā)現(xiàn)................................................................................................................6
3.1 通過(guò)OMC話(huà)統(tǒng)發(fā)現(xiàn)干擾........................................................................................................6
3.2 OMC告警和用戶(hù)申告............................................................................................................8
3.3 通過(guò)路測(cè)發(fā)現(xiàn)干擾..................................................................................................................9
第 4章定位和排除干擾源...........................................................................................................10
4.1 干擾定位和排查建議步驟.....................................................................................................10
4.1.1 根據(jù)關(guān)鍵性能指標(biāo)KPI 確定干擾小區(qū)...................................................................10
4.1.2 檢查OMC告警..........................................................................................................10
4.1.3 檢查頻率規(guī)劃.............................................................................................................10
4.1.4 檢查小區(qū)參數(shù)設(shè)置.....................................................................................................11
4.1.5 路測(cè)...........................................................................................................................11
4.1.6 干擾排除....................................................................................................................11
4.2 硬件故障定位和排除............................................................................................................11
4.2.1 天線(xiàn)性能下降.............................................................................................................12
4.2.2 天線(xiàn)或饋管進(jìn)水.........................................................................................................13
4.2.3 天饋接頭故障.............................................................................................................13
4.2.4 天線(xiàn)接反....................................................................................................................14
4.2.5 基站跳線(xiàn)接錯(cuò).............................................................................................................15
4.2.6 TRX故障...................................................................................................................16
4.2.7 時(shí)鐘失鎖....................................................................................................................19
4.2.8 小結(jié)...........................................................................................................................20
4.3 網(wǎng)內(nèi)干擾...............................................................................................................................20