移动LTE常见故障处理集

中移动TD-LTE故障处理指导书文档密级2020-7-2华为保密信息,未经授权禁止扩散第1页,共52页中移动TD-LTE常见案例处理集华为技术有限公司版权所有侵权必究中移动TD-LTE故障处理指导书文档密级2020-7-2华为保密信息,未经授权禁止扩散第2页,共52页目录1配置类问题处理....................................................................................................................41.1某些站点有信号但是无法做业务...............................................................................41.2查询IPPATH状态，IPPATH检测结果为禁用..........................................................41.3室分站配置超过6个RRU后，只有6个RRU正常...................................................41.4新建双模室分站，在激活小区提示小区激活时报频率超过RRU范围...................61.5室分站开通后基站状态正常,但是无信号.................................................................61.6数据配置问题导致小区服务能力下降.......................................................................61.7数据配置问题致使TDS-LTE双模基站LTE小区因上行频点生效失败而退服.......81.8小区默认参数小区级参考信号端口数配置错误导致小区无法建立.....................101.9因RRU通道数配置错误导致激活小区时上报配置频率超过RRU范围的处理方法131.10扇区设备编号配置错误导致小区无可用载波资源.................................................132告警类问题..........................................................................................................................142.1RRU组网级数与配置不一致告警..............................................................................142.2制式间射频单元参数配置冲突告警.........................................................................152.3小区不可用，原因是频段与RRU能力不符.............................................................152.4射频单元工作模式与单板能力不匹配告警.............................................................152.5激活小区时因为小区合并模式不支持BF算法导致激活小区失败.......................162.6重要驻波告警.............................................................................................................162.7次要驻波告警.............................................................................................................162.8S1接口故障/SCTP链路故障.....................................................................................172.9制式间控制权冲突告警.............................................................................................172.10单板软件自动增补失败告警处理小结.....................................................................172.11因双拼的一个RRU故障导致小区无法建立.............................................................182.12同一RRU被不同小区扇区设备引用导致另一小区无法激活.................................202.13TDS-TDL双模改造光纤损坏导致RRU断链..............................................................222.14部分载波未绑定基带，导致RRU显示基带资源异常.............................................242.15光路误码导致TDL频繁上报小区不可用告警.........................................................262.16某局点新建双模室分站点，因小区合并开关未打开导致LTE侧小区建立不成功的故障处理方法.........................................................................................................................312.17双模站点TDS侧载频配置超过双模规格导致LTE侧小区无法建立.....................313传输类问题..........................................................................................................................333.1某地市基站开通后下载速率只有2M........................................................................333.2传输VLAN终结配置错误导致eNodeB无法盲启.....................................................343.3UMPT传输端口属性与传输设备端口属性不一致导致OMCH链自建立失败..........353.4基站到网管传输不通.................................................................................................373.5单模LTELINK改EP模式后SCTP链路故障...........................................................393.6传输侧PTN6900的MAC参数配置错误导致起站失败.............................................413.7MML命令无法下发......................................................................................................413.8传输光接口异常告警，原因是接收功率过高.........................................................43中移动TD-LTE故障处理指导书文档密级2020-7-2华为保密信息,未经授权禁止扩散第3页,共52页3.9传输光接口异常告警，原因是接收功率过低.........................................................434时钟类问题..........................................................................................................................434.1星卡天线输出异常/星卡天线故障...........................................................................434.2双模站点GPS共用设置问题处理建议.....................................................................444.3关于参考源的相位与本地晶振相位偏差太大告警.................................................444.4GPS无法搜星故障处理..............................................................................................474.5LTETDD系统时钟同步模式错误导致小区无法建立..............................................484.6TDS-TDL双模站点时钟源配置问题导致小区建立失败..........................................514.7系统时钟不可用告警；时钟参考源异常告警.........................................................52中移动TD-LTE故障处理指导书文档密级2020-7-2华为保密信息,未经授权禁止扩散第4页,共52页1配置类问题处理1.1某些站点有信号但是无法做业务问题原因及解决步骤：查询一下eNodeBID是否重复，可以查询所有基站的eNodeBID然后查找是否有重复的基站，然后修改eNodeBID，RSTBRD复位主控板使修改后的基站ID生效；1.2查询IPPATH状态，IPPATH检测结果为禁用问题原因及解决步骤：1、没有增加eNodeBIPPath应用类型，执行ADDENODEBPATH增加即可；2、GTP-U静态检测开关未开，执行MODGTPU将静态检测开关设置为使能；1.3室分站配置超过6个RRU后，只有6个RRU正常问题原因及解决步骤：在N+M特性中，仅支持n*1T1R+m*2T2R场景，满足0〈=n，m〈=6，且n+m〈=6，因此在配置多RRU小区合并时，对于超过6RRU场景，只能通过双拼配置方案来实现，将2个1T1R双拼为1个2T2R，当存在不能满足上述限制时，采用两两双拼原则来配置。配置脚本参考：ADDRRUCHAIN:RCN=0,TT=CHAIN,BM=COLD,HSN=2,HPN=0,CR=6.1;ADDRRUCHAIN:RCN=1,TT=CHAIN,BM=COLD,HSN=2,HPN=1,CR=6.1;ADDRRU:CN=0,SRN=110,SN=0,TP=TRUNK,RCN=0,PS=0,RT=MRRU,RS=TL,RX