【正文】 無線網(wǎng)絡高層優(yōu)化專題總結報告1無線網(wǎng)絡高層優(yōu)化專題總結報告無線網(wǎng)絡高層優(yōu)化專題總結報告2目 錄1 概述 .............................................................................................52 高層優(yōu)化主要結果 .......................................................................53 優(yōu)化思路 ......................................................................................64 高層問題分析和建議 ....................................................................6 問題概述 ...............................................................................................6 覆蓋問題具體分析 .................................................................................7 天線下傾角調整的效果 ..........................................................................7 低站覆蓋過遠問題 ...............................................................................11 刀鋒效應 ........................................................................................................12 結論和建議 .....................................................................................................15 天線調整對高層覆蓋的影響 ................................................................15 室外天線對高層覆蓋分析 ....................................................................16 測試結果和分析 ..................................................................................20 室外天線規(guī)劃建議 ...............................................................................21 信號強度需求分析 ...............................................................................24 利用1800M小區(qū)作為補充覆蓋 .............................................................26 信號質量問題 ......................................................................................28 小區(qū)選擇和重選無法控制問題 .............................................................28 非 C2 準則的小區(qū)重 選 ....................................................................................28 小區(qū)選擇和重選規(guī)范 ...........................................................................29 小區(qū)選擇 .............................................................................................29 存儲列表小區(qū)重選 ...............................................................................30 小區(qū)選擇 .............................................................................................30 小區(qū)重選 .............................................................................................31 小區(qū)選擇和重選總結 ...........................................................................32 通話狀態(tài)下緊急切換問題 ....................................................................32 過遠小區(qū)的同頻干擾問題 ....................................................................33 總結和建議 ..........................................................................................33 覆蓋控制和改善 ..................................................................................33 頻率規(guī)劃和優(yōu)化建議總結 ....................................................................34 參數(shù)調整建議總結 ...............................................................................355 室內(nèi)分布系統(tǒng)不同材質衰減測試結果 .........................................36 不同建筑材質的穿透損耗測試結果 ......................................................36 結論和建議 ..........................................................................................376 高層的信號泄露和室內(nèi)覆蓋系統(tǒng)之間的互相干擾 .......................37 實測數(shù)據(jù) .............................................................................................37 測試結果 .............................................................................................38 理論分析 .............................................................................................40 自由空間損耗 ......................................................................................40 C/I，QUALITY和SQI之間的關系 ........................................................44無線網(wǎng)絡高層優(yōu)化專題總結報告3 總結和建議 ..........................................................................................447 直放站碼間干擾問題 ..................................................................45 背景 ....................................................................................................45 時延過大引起異常干擾研究 ................................................................45 現(xiàn)象分析 .............................................................................................45 調整思路 .............................................................................................47 公寓樓的情況 ......................................................................................49 總結和建議 ..........................................................................................508 優(yōu)化案例分析和結果 ..................................................................52 香格里拉酒店和公寓樓 ........................................................................53 測試結果 .............................................................................................54 香格里拉酒店優(yōu)化結果 ........................................................................54 香格里拉酒店 2807 房間（東北方向） ..............................................................54 香格里拉酒店 2703 房間（正北方向） ..............................................................55 香格里拉酒店 2517 房間（正南方向） ..............................................................56 香格里拉酒店 2515 房間（正東方向） ..............................................................58 香格里拉酒店 2501 房間（西北方向） ..............................................................59 公寓樓優(yōu)化結果 ..................................................................................60 11F、12F 投訴點測試 .....................................................................................60 香格里拉公寓 25 層南側上行干擾問題 ...........................................................61 建議 ....................................................................................................64 新江南大酒店 ......................................................................................64 問題分析 .............................................................................................65 頻點干擾調整 .....................................................