《it網(wǎng)絡設備td-scdma單通問題定位指導書(華為)》-全文預覽
【正文】 .................................................................................................... 4 語音質(zhì)量問題定義 ........................................................................................................4 單通 ..................................................................................................................4 問題場景模型分析 ........................................................................................................4 設備因素 ............................................................................................................5 環(huán)境因素 ............................................................................................................5 場景測試分析 .....................................................................................................5 問題排查基本思路 ........................................................................................................6 確認問題出現(xiàn)范圍 ..............................................................................................6 排查無線環(huán)境因素 ..............................................................................................6 排查終端問題 .....................................................................................................7 排查傳輸問題 .....................................................................................................7 第 3 章 環(huán)回測試指導 .............................................................................................................. 8 IU口用戶面環(huán)回概述 .....................................................................................................8 IU口用戶面環(huán)回原理 .....................................................................................................8 IU口用戶面環(huán)回操作步驟 ..............................................................................................9 IU上行環(huán)回 ........................................................................................................9 IU下行環(huán)回 ...................................................................................................... 11 IU環(huán)回關閉 ...................................................................................................... 12 IU環(huán)回測試結(jié)果判斷 ................................................................................................... 12 UE 的上行環(huán)回判斷 ........................................................................................... 12 UE 的下行環(huán)回判斷 ........................................................................................... 13 舉例說明 .................................................................
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