【正文】 廣西移動(dòng)來賓地區(qū)無線網(wǎng)絡(luò)優(yōu)化專案項(xiàng)目報(bào)告掉話優(yōu)化專題2022 年 12 月 18 日目錄1．概述 .............................................................................................................................................32．網(wǎng)絡(luò)現(xiàn)狀 .....................................................................................................................................33．優(yōu)化后效果（數(shù)據(jù)來源話務(wù)統(tǒng)計(jì)）： .....................................................................................44. 現(xiàn)網(wǎng)掉話原因分析： .................................................................................................................44. 1 MRR 測(cè)量分析現(xiàn)網(wǎng)現(xiàn)狀： .................................................................................................................44．2 通過 DT 測(cè)試分析： ............................................................................................................................54．3 從話務(wù)角度分析： ...............................................................................................................................65．掉話的原理及分類 .....................................................................................................................65．1 掉話分類的原理 ...................................................................................................................................65．2 現(xiàn)網(wǎng)掉話分類情況 ...............................................................................................................................86．手機(jī)功控的調(diào)整及效果 ...........................................................................................................106. 1 上行功控的理論分析： .......................................................................................................................106. 2 現(xiàn)網(wǎng)配置 ...............................................................................................................................................126. 3 現(xiàn)網(wǎng)調(diào)整手機(jī)功控及效果分析 ...........................................................................................................127．切換優(yōu)化降低掉話率 ...............................................................................................................148．高掉話小區(qū)案例分析 ...............................................................................................................17 高掉話小區(qū)的發(fā)現(xiàn)： ............................................................................................................................17 掉話小區(qū)處理方法 ................................................................................................................................178 .2 .1 小區(qū)硬件導(dǎo)致的高掉話處理方法 ...........................................................................................178. 2. 2 傳輸故障造成的掉話處理 .......................................................................................................208. 2. 3 參數(shù)定義錯(cuò)誤引起的高掉話 ...................................................................................................238. 2. 4 ERROR LOG 分析處理問題 ..................................................................................................258. 2. 5 外部上行干擾的處理 ...............................................................................................................268. 2. 6 通過對(duì) DXU LOG 分析解決問題 ...........................................................................................278. 2. 7 級(jí)連小區(qū)的傳輸問題檢查 .......................................................................................................329．THR 和 TRA 應(yīng)用原理和檢查 ....................................................................................................339. 1 THR 檢查 ...............................................................................................................................................339. 2 TRA 檢查 ...............................................................................................................................................3510. 開啟 IRC 改善質(zhì)差掉話 .........................................................................................................3511. 建議 .........................................................................................................................................3611. 1 加強(qiáng)覆蓋 .............................................................................................................................................3611. 2 采用塔頂放大器解決上行弱覆蓋 .....................................................................................................3611. 3 擴(kuò)容和建站解決高擁塞 .....................................................................................................................361．概述針對(duì)廣西來賓市掉話率較高的情