PCI混淆导致切换指标恶化分析案例

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1、因PCI混淆导致切换指标恶化分析案例问题描述：FUY_YinTang_HAL_53此小区在早晨6点开始X2请求大量失败，持续多个时段导致切换成功率下降，判断为此种现象不是突发状况,具体切换指标如下所示:nTangHAL53AHCM"CCRADIOSUCCRATE(AHEU0103)(%)AHCM'CCRADIODROPRATE(AHEU0201)(%)AHCM"CCRADIOHOSUCCRATE(AHEU0306)(%)VSHOrCX2req_src(L12706)(Nounit)VS_HOJi7C_X2_succsrc(L12707)(Nounit)VSH

2、OIr7CX2failsrc(L12707_20_CI)(Nounit)01/06/201500:00100.00%0.00%100.00%00001/06/201501:0099.81%0.38%100.00%11001/06/201502:00100.00%0.00%100.00%00001/06/201503:00100.00%0.00%100.00%s5001/06/20150400100.00%0.00%Nerr00001/06/201505.00100.00%0.00%100.00%11001/06/201506.00100.00%0.00%75.

3、93%45331201/06/201507.00100.00%0.00%78.79%8S642101/06/201508.0099.72%0.00%75.76%131993201/06/20150900100.00%0.00%75.32%1581193901/06/2015100099.67%0.00%72.59%45632513101/06/201511:0099.85%0.00%75.96%1801305001/06/2015120099.69%0.38%82.46%97772001/06/20151300100.00%0.00%76.40%1681264

4、201/06/20151400100.00%0.27%86.46%776401/06/20151500100.00%0.12%77.08%1319801/06/2015160099.89%0.00%100.00%1919001/06/20151700100.00%0.41%100.00%2727001/06/20151800100.00%0.33%100.00%880

5、01/06/20151900100.00%0.15%100.00%660问题分析：通过SAM网管查看此基站无故障，通过NPO查看此小区切换失败上报原因为VS_HO」rc_X2_fail_prep

6、_H0PrepFailRcvd_src_0D（此计数器为目标小区不可用），通过NPO模糊查询此小区的目标小区发现均无计入失败过多小区，具体指标如下图：VS_HOJrC_X2_failJgt(L12711V0_CI)(Nounit)01/06/201507:0001/06/201508:0001/06/201509:0001/06/201510:0001/06/201511:0001/06/2015120001/06/201513:0001/06/201514:0001/06/201515:0001/06/201516:0001/06/2015170001/06

7、/201518:0001/06/201519:00FUYBiHaiHAL530000000000000FUYGuoYingHAL520000000000000FUYGuoYingHAL530010000000100FUY_MaoQiao_HAL_520131010102100FUYYinTangHAL510000000000000FUYYinTangHAL520000310100510FUY-YinTangJ4AL530000010000000FUYZhaoDianChengZhuangN/AH/AN/AN/AN/AN/AH/AN/AN/AM/AN/AH/AN

8、/AFUY^ZhaoDianChengZhuangN/AH/AN/AN/AN/AN/AH/AN/AN/AH/ANZAH/AN/AFUY_ZhaoDian_HAL_51N/AN/AN/AN/AN/AN/AN/AN/AN/AM/AN/AH/AN/AFUYZhaoDianHAL52N/AH/AN/AN/AH/AN/AH/AN/AN/AH/AN/AH/AN/AFUY_ZhaoDian_HAL_53N/AH/AN/AN/AH/AN/AH/AN/AN/AM/AN/AH/AN/A上图中N/A对应小区为新入网管基站，不具备入网条件，小区闭锁。对其邻区基站参数核查发现参数配置合

9、理，无错误；收集FUY_YinTang