CQI高階占比優(yōu)化案例

CQI高階占比優(yōu)化案例一、概述：1.16%KPI短板。CQI高階占比進行統(tǒng)計，對CQICQI（小區(qū)）RFCQI高階占比的目的。將龍灣分為7CQI高階占比低；指標。龍灣片區(qū)六濱海區(qū)域的范圍圖：二、龍灣片區(qū)六覆蓋分析：采樣點數(shù)量，CQI主要用來衡量小區(qū)下行信道的質量，CQI越高表明下行信道質量越好；而高低是由網(wǎng)絡的覆蓋好壞和干擾的強弱直接決定的。高階占比的目的；大面積弱覆蓋目前需要通過建站解決，短期內無法有效果，PCI模三干擾全網(wǎng)確實普遍存在，但比較分散，界定較難，且修改PCI會影響全網(wǎng)PCI規(guī)劃，需要規(guī)劃解顯實現(xiàn)較容易的方案。方案制定：調整方案主要根據(jù)覆蓋方向的站間距離，如果小區(qū)覆蓋距離大于站間采樣角與站間距做出補充的調整方案，都為基覆蓋調整，調整各站點的方位角與傾角。10160個，占總小區(qū)數(shù)的59.4%；調整方案如下表格：龍灣第六片區(qū)濱海天線調整方案.xlsx三、龍灣片區(qū)六濱海測試分析：龍灣片區(qū)六測試情況：RSRP[-140,-110)[-110,-105)[-105,-100)[-100,-95)[-95,-85)[-85,-70)[-70,-40)采樣點數(shù)20972028485769322243739占比0.05%0.23%0.47%1.98%13.45%75.12%8.72%SINR[-20,-5)[-5,0)[0,5)[5,10)[10,15)[15,20)[20,35)采樣點數(shù)32212862901700712272122806800占比0.75%3.00%6.77%16.35%28.63%28.65%15.86%MCS[0,9)[9,17)[17,23)[23,28)采樣點數(shù)96433122548800占比12.64%43.44%33.42%10.49%15.86%，SINR≥15的占的高階占比64.10%，從統(tǒng)計結果可以看出龍灣片區(qū)六覆蓋良好，干擾嚴重，主要原因是重疊覆蓋造成的。四、實際調整情況：（基站與周邊樓房的高度情況49605月22日完成全部調整工作。調整情況如下表格：龍灣第六片區(qū)濱海五、調整后測試指標對比情況：RSRP對比情況RSRP[-140,-110)[-110,-105)[-105,-100)[-100,-95)[-95,-85)[-85,-70)[-70,-40)調整前采樣點數(shù)20972028485769322243739調整后采樣點數(shù)382464424895797345589930調整前占比0.05%0.23%0.47%1.98%13.45%75.12%8.72%調整后占比0.07%0.48%0.86%0.95%11.26%67.10%19.28%點也有所下降，調整后覆蓋有所提升了，改善用戶對信號的感知度。2SINR對比情況:SINR[-20,-5)[-5,0)[0,5)[5,10)[10,15)[15,20)[20,35)調整前采樣點數(shù)32212862901700712272122806800調整后采樣點數(shù)1124517536430125861625714142調整前占比0.75%3.00%6.77%16.35%28.63%28.65%15.86%調整后占比0.02%0.48%3.41%12.50%24.47%31.61%27.50%11.64%；SINR≥15dBmSINR覆蓋好點明顯上升，SINR覆蓋差點明顯下降，提升了用戶對信號的感知度。3MCS對比情況:MCS[0,9)[9,17)[17,23)[23,28)調整前采樣點數(shù)96433122548800調整后采樣點數(shù)442315237191769調整前占比12.64%43.44%33.42%10.49%調整后占比4.87%34.71%40.95%19.48%調整后下行MCS≥17（64QAM）60.43%16.52%，下行方向高階調制明顯提升；直接反應出下行方向速率的提升，用戶感知明顯改善。六、調整后CQI高階占比對比情況：行標簽求和項:CQI(10-15)上報數(shù)量_zjwxwyhw(次)求和項:CQI-zjwxwyhw(次)CQI2017-05-025517699485835042532466.08%2017-05-036033691509913493179966.05%2017-05-046062220973行標簽求和項:CQI(10-15)上報數(shù)量_zjwxwyhw(次)求和項:CQI-zjwxwyhw(次)CQI2017-05-025517699485835042532466.08%2017-05-036033691509913493179966.05%2017-05-046062220973917534268366.07%2017-05-056125774027929569175165.90%2017-05-065875572218898206260965.41%2017-05-075610452629852995151765.77%2017-05-086036442427907720701766.50%2017-05-096122049619911384549967.17%2017-05-106071315943900360030767.43%2017-05-116220354756923797144367.33%2017-05-126054659054892274602167.86%2017-05-135828415028852678109468.35%2017-05-145460967188785229377569.55%2017-05-156012849721872028502368.95%2017-05-166046461423878634905568.82%2017-05-176059966884873818527469.35%2017-05-186158589194881138630669.89%2017-05-196208617584883759215470.25%2017-05-206090888509870503596169.97%2017-05-215642013159794724330270.99%2017-05-226095875200862966574370.64%2017-05-236264156013878211007671.33%2017-05-246096588684862090526070.72%201