【資料名稱】：常見故障分析與定位

【資料作者】：WU

【資料日期】：2011

【資料語言】：中文

【資料格式】：DOC

【資料目錄和簡介】：

第 2章 常見故障分析與定位...................................................................................................2-1
2.1 通話類故障分析與定位......................................................................................................2-1
2.1.1 移動臺找網簡介......................................................................................................2-1
2.1.2 打不通電話..............................................................................................................2-2
2.1.3 打通后無話音..........................................................................................................2-5
2.1.4 單向通話.................................................................................................................2-6
2.1.5 話音質量差..............................................................................................................2-6
2.1.6 斷話 ........................................................................................................................2-7
2.1.7 串話 ........................................................................................................................2-8
2.1.8 移動臺頻繁掉網......................................................................................................2-8
2.1.9 立即指配拒絕..........................................................................................................2-9
2.2 上網類故障分析與定位......................................................................................................2-9
2.2.1 移動臺搜索不到網絡...............................................................................................2-9
2.2.2 移動臺無法登錄網絡.............................................................................................2-11
2.2.3 頻繁位置更新........................................................................................................2-13
2.3 加載類故障分析與定位....................................................................................................2-14
2.3.1 軟件下載失敗........................................................................................................2-14
2.3.2 基站初始化失敗....................................................................................................2-16
2.4 信令類故障分析與定位....................................................................................................2-17
2.4.1 OML鏈路不通.......................................................................................................2-17
2.4.2 RSL鏈路不通........................................................................................................2-18
2.5 天饋系統(tǒng)故障分析與定位 ................................................................................................2-19
2.6 光通道故障分析與定位....................................................................................................2-21
2.7 單板故障分析與定位........................................................................................................2-21
2.7.1 CDU.......................................................................................................................2-21
2.7.2 EDU.......................................................................................................................2-24
2.7.3 PBU.......................................................................................................................2-27
2.7.4 PMU ......................................................................................................................2-29
2.7.5 PSU.......................................................................................................................2-32
2.7.6 TES .......................................................................................................................2-33
2.7.7 TEU.......................................................................................................................2-34
2.7.8 TMU.......................................................................................................................2-35
2.7.9 SCU.......................................................................................................................2-37
2.7.10 TRX.....................................................................................................................2-39