【資料名稱】：開(kāi)通DO后基站反向RSSI抬升的分析處理

【資料作者】：華為

【資料日期】：2009

【資料語(yǔ)言】：中文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

1 問(wèn)題現(xiàn)象....................................................................................................................3
1.1 RSSI概述.............................................................................................................3
1.2 問(wèn)題現(xiàn)象..............................................................................................................3
2 問(wèn)題排查流程.............................................................................................................4
2.1 設(shè)備運(yùn)行狀態(tài)檢查................................................................................................6
2.2 后臺(tái)分析..............................................................................................................7
2.3 歷史操作核查.......................................................................................................7
2.4 無(wú)線參數(shù)核查.......................................................................................................8
2.5 反向通道檢查.......................................................................................................8
2.6 工程質(zhì)量問(wèn)題處理..............................................................................................12
2.6.1 室外站.............................................................................................................12
2.6.2 室內(nèi)站.............................................................................................................14
3 附錄.........................................................................................................................16
3.1 RSSI原理...........................................................................................................16
3.1.1 RSSI異常產(chǎn)生原理..........................................................................................16
3.1.2 RSSI相關(guān)名詞解釋..........................................................................................17
3.2 RSSI測(cè)量原理....................................................................................................18
3.3 典型案例............................................................................................................18
3.3.1 TOTAL_ZONE、ZONE_TIMER設(shè)置錯(cuò)誤導(dǎo)致RSSI異常.............................................18
3.3.2 西直門(mén)橋及其他站點(diǎn)干擾源排查報(bào)告...............................................................19
3.3.3 接頭制作不規(guī)范導(dǎo)致RSSI異常........................................................................22
3.3.4 基站避雷器殘次導(dǎo)致反向RSSI異常.................................................................23
3.3.5 天饋接頭松動(dòng)導(dǎo)致RSSI異常............................................................................24
3.3.6 城鄉(xiāng)倉(cāng)儲(chǔ)大超市RSSI異常問(wèn)題處理.................................................................25
3.3.7 室分直放站/干放/耦合器導(dǎo)致RSSI抬升的案例.................................................25
3.3.8 新華社EVDO載頻RSSI偏高處理案例..............................................................27