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金顶宝座室分弱覆盖问题提升案例4G室内问题描述)BDBES1362jindingbaodingyi-ELSE-l(金顶宝座1_1小区MR统计为弱覆盖小区,7月29日-31日弱覆盖采样点占比分别为1L67%、
11.79%、
11.94%室内问题区域场景特点金顶宝座位于五四东路与东苑街交叉口西行20米路北,为住宅小区,总建筑面积约60000地理位置截图:周围基站分布图:平方米,板式高层小区内部照片:小区户数3500户,为满足用户使用4G网络需求,需对小区内高层住宅楼进行整体覆盖现场勘查、测试情况
1、该小区共9台RRU以全向吸顶天线方式对金顶宝座进行覆盖;
2、经现场排查发现,设备放置在A座22层弱电井;
3、现场测试,金顶宝座A座22-34层平层内存在弱覆盖现象,平均电平为-92dbm,疑为分布中存在断点或者馈线头损坏导致22-34层覆盖水平较差金顶宝座B座整体区域整体区域覆盖设备截图:分布系统故障点照片:RRU良好,平均电平为-65dbmPCTime NameQ4豆TL,995694WorkMode TODRSRPfdBm-111a115:27:
46.0214L-Paging92BAND40RSRQdB15:27:
46.286令L-MeasurementReport9015:27:47,284@L-Paging8SDLBandwidth20RSSIdBm・7431S515:27:
49.8434L-PagingSINRdBDLFrequency
23306.1084115:27:
56.317令L-MeasurenientReport82DRSSINRdBDLEARFCN3895015:27:57,424$L-Paging B15:27:59,499QL-RRCConnectionReconfigmtion OPCI463PRACHPoweK-277815:27:59,499令L-RRCConnectionReconfigurat»nCompliL176TAC PUSCHPower-12■15:28:
06.519\L-MeasurementReport74MCC460PUCCHPower15:28:11,
464.L-Paging7215:28:
16.799令•0MNC00SRSPower6L-MeasurementReport6815:28:17,8914L-Paging66SubFrameAssig2PowerHeadroo3715:28:21,713L-Paging6415:28:
27.017畲62SpecialSubFra Pathloss79L-MeasurementReportRRCSatus LTEConnectPUSCHSchedul
7.91015:28:
29.4044L-Paging605515:28:
30.2000L-RRCConnectionReconfigizaton56RRCProtocol R9PDSCHSchedul
83.94015:28:
30.200©L-RRCConnectionReconfiguratonConipii5415:28:
32.0724L-Paging▼52UECategory3MCS_DL_AVV274600263121MCS_UL_AVG/50IMSI2245PCTime EventQ}f711*46TNMode TM1CodeWordNin14415:27:00,134FTPDownloadConnectRequestCellBarred NotBarredWidebandCQI1515:27:00375EventAl40500m15:27:
03.195FTPDownloadConnectSuccess3S3615:27:
03.337FTPDownloadLoginSuccess3415:27:03375FTPDovmloadResetSupport32X:
213.8Y:
409.54III1►|15:27:03,527FTPDownloadSendRETR3015:27:
03.575FTPDownloadFirstDataType EARFCNPCIRSRPdBmRSRQdBRSSIfdBmParam DownUnkKbpsUpbnkKbps15:27:15,928EventAl15:27:
43.041FTPDovmloadLastData=PCell38950463-
111.63-
9.68-74J1PDCPThroughput43337673RLCThroughput15:27:
43.057FTPDovrtiloadDisconnect4335870115:27:58,124FTPDownloadConnertRequestMACThroughput4424175615:27:58,189FTPDownloadConnectSuccessPHYThroughput4345170415:27:
58.351FTPDownloadLoginSuccess15:27:
58.394FTPDownloadResetSupportPHYDLCodeO43451-15:27:58,538FTPDownloadSendRETRPHYDLCodel0-■15:27:
58.570FTPDowloadFirstData15:28:
29.083FTPDownloadLastDataQSL15:28:
29.114FTPDovmloadDisconnectI|‘15:28:
36.940StopTest▼_LParam ValueParam Value故障处理前测试截图:具体质量提升方案
1、现场测试发现22层至34层LTE网络覆盖水平较差
2、经过排查,发现22层至23层分布中存在故障,经在23层主干接吸顶天线,天线输出弱,排查22层至23层分布系统发现22层至23层耦合器处馈线头严重脱落,经更换馈线及馈线头后22-23层现场测试正常,天线下RSRP在-54dbm左右,平层内覆盖良好,问题得到解决;效果评估现场排查该站点分布系统存发现22层至23层耦合器处馈线头严重脱落现象,经更换馈线头及馈线后现场测试正常,无弱覆盖现象;故障处理后测试截图Param ValueParam PCTimeName9S1J.4/.TJ.UUQIfL-^f\f\v^unnc\.iiunrxCLUiinyuioi^iiwuip*95WorkMode TDDRSRP{dBm W15:27:46,0214L-PagingBAND40RSRQdB15:27:
46.286令L-MeasurementReport9920DLBandwidth20RSSIdBm15:27:47,284SL-Paging834L-PagingDLFrequency2330SINRdB15:27:
49.843令L-MeasurementReport885415:27:
56.317$L-Paging!2DLEARFCN38950DRSSINRdB15:27:57,4244L-RRCConnectionReconfigmtion B463PRACHPowerf15:27:59,499O15:27:59,499令7BL-RRCConnectionReconfigurat»nCompli.JTAC PUSCHPower-127615:28:
06.5191L-MeasurementReport74MCC460PUCCHPower15:28:11,
464.L-Paging72令MNC00SRSPower15:28:
16.799L-MeasurementReport7015:28:17,8914L-PagingSubFrameAssig2PowerHeadroo3715:28:21,7130L-Paging%SpecialSubFra Pathloss15:28:
27.017畲L-MeasurementReport6415:28:
29.4044L-Paging62RRCStatus LTEConnectPUSCHSchedul
7.91015:28:
30.2003L-RRCConnectionReconfigiraton600L-RRCConnectionReconfiguratonConipl5SRRCProtocol PDSCHSchedul
83.94015:28:
30.2004L-Paging5615:28:
32.07254UECategory524600263121MCS_UL_AVG/22IMSI50CodeWordNini PCTimeEvent45TMMode4615:27:00,134FTPDownloadConnectRequestCellBarred NotBarredWidebandCQI1515:27:
00.375EventAl40500m15:27:
03.195FTPDownloadConnectSuccess383S15:27:
03.337FTPDownloadLoginSuccess3415:27:
03.375FTPDownloadResetSupportFTP32X
213.8Y:-
109.5in15:27:
03.527DownloadSendRETR3015:27:
03.575FTPDownloadRrstDataTypeEARFCNPCIRSRPdBmRSRQdBRSSIdBm ParamDownUnkKbpsUpUnkKbps15:27:15,928EventAlPCell38950463-
64.94-
9.88-
35.06PDCPThroughput4333715:27:
43.041FTPDownloadLastDataFTPDov/nloadDisconnectRLCThroughput4335870115:27:
43.057FTPDov/nloadConnectRequest15:27:58,124MAClhroughput44241FTPDownloadConnectSuccess15:27:58,189PHYThroughput4345170415:27:
58.351FTPDovvnloadLoginSuccessFTPDovmloadResetSupportFTPPHYDLCodeO4345115:27:
58.394DownloadSendRETR15:27:58,538PHYDLCodel15:27:58570FTPDownloadFrstData15:28:
29.083FTPDownloadLastData15:28:
29.114FTPDovmloadDisconnect15:28:
36.940StopTest SlotOSlotlIIIMR指标需下月进行数据提取和评估方案执行难度分析本案例内故障现象,主要从现场测试分布、问题故障定位及故障排查三个方面来发现处理,通过每日MR统计进行指标分析发现TOP小区,及时处理,使MR指标正常,恢复指标,同时避免因分布故障导致用户投诉发生总结及推广建议对该案例的优缺点、案例推广适用性及存在的问题等进行总结归纳技术分析通过排除分布系统故障,使楼内覆盖良好,解决弱覆盖现象性能分析通过及时排除故障,减少因分布系统故障导致用户投诉发生实施难度分析需加强网管监控,尽早发现问题,及时处理。