【資料名稱】：網(wǎng)絡指標提升專題-掉話專題

【資料作者】：大唐

【資料日期】：2011

【資料語言】：中文

【資料格式】：DOC

【資料目錄和簡介】：

目錄
1. 概述 ........................................................................................................................................... 4
1.1. 編寫目的 ................................................................................................................................. 4
1.2. 預期讀者與建議 ..................................................................................................................... 4
2. 掉話/掉線相關流程及參數(shù) ....................................................................................................... 4
2.1. 無線掉話/掉線率的定義 ....................................................................................................... 4
2.2. 掉話/掉線的相關流程 ........................................................................................................... 5
2.3. 定時器、計數(shù)器介紹 ............................................................................................................. 7
2.3.1. UE側相關參數(shù)及定時器、計數(shù)器 ................................................................................ 7
2.3.2. Node B側相關參數(shù)及定時器、計數(shù)器 ......................................................................... 8
2.3.3. RNC側相關參數(shù)及定時器 ............................................................................................. 9
3. 無線掉話/掉線的分析流程 ..................................................................................................... 10
3.1. KPI統(tǒng)計指標分析 ................................................................................................................ 11
3.2. TOP小區(qū)分析及測試必要性................................................................................................. 12
3.3. 掉話/掉線問題分析 ............................................................................................................. 13
3.3.1. 鄰區(qū)漏配 ....................................................................................................................... 13
3.3.2. 覆蓋差 ........................................................................................................................... 13
3.3.3. 干擾導致的掉話 ........................................................................................................... 14
3.3.4. 切換導致的掉話 ........................................................................................................... 14
3.3.5. 異常分析 ....................................................................................................................... 15
3.3.6. 常見問題分析 ............................................................................................................... 15
3.3.6.1. RL failure or RLC error timer expiry ........................................................... 15
3.3.6.2. Cell Update Confirm 超時 ................................................................................... 16
3.3.6.3. Receive Ue Timeout Msg during HO ................................................................... 17
3.3.6.4. The reason for the action is expiry of timer TRELOCoverall. .............. 17
3.3.6.5. Re-access Release ................................................................................................. 18
3.3.6.6. Release requested due to UE generated signalling connection release 19
3.3.6.7. Receive Ue Failure Response Message In DTD Proc ................................... 20
3.3.6.8. Receive UE TimerOut Response Message ........................................................... 20
3.3.6.9. RRC release when INTEGRITY CHECK fail ......................................................... 21
3.3.6.10. The action of ue failure result RRC release ......................................... 22
3.4. 掉話/掉線常見原因總結 ..................................................................................................... 22
3.5. 分析思路小結 ....................................................................................................................... 26
4. 案例分析 ................................................................................................................................. 28
4.1. UE2切換后掉話問題分析 .................................................................................................... 28
4.2. 小區(qū)更新失敗導致掉話問題分析 ........................................................................................ 34
4.3. 呼叫重建失敗導致掉話問題分析 ........................................................................................ 43
網(wǎng)絡指標提升專題-接入專題
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4.4. RNC邊界區(qū)域掉話問題分析................................................................................................. 50
4.5. UE切入碧桂園小區(qū)掉話問題分析 ....................................................................................... 53
4.6. 廣州明經(jīng)村附近掉話問題分析 ............................................................................................ 56
4.7. 廣州東仁新街附近掉話問題分析 ........................................................................................ 59
4.8. 虹六村曹家角附近掉話問題分析 ........................................................................................