| Transport layer connection failure in X2 interface | | |
| Transport layer connection failure in S1 interface | | 检查基站TAC\MME\EnodeB ID数据配置,核查到MME路由是否正常 |
| X2 interface setup failure | | |
| | | 检查基站TAC\MME\EnodeB ID数据配置,核查到MME路由是否正常 |
| S1 interface setup failure | | 检查基站TAC\MME\EnodeB ID数据配置,核查到MME路由是否正常 |
| Transmission path failure | | |
| Radio module low optical signal level to upper hop | | 检查BBU-RRU之间光路衰耗,检查BBU-RRU之间光模块 |
| Optical link speed change failure | | 检查BBU-RRU之间光路衰耗,检查BBU-RRU之间光模块 |
| Increased BER detected on the optical connector | | 光传输质量不好,检查并擦拭基站BBU-RRU之间光纤,光模块,光法兰,跳纤.必要时使用OTDR测试BBU-RRU之间全程光路 |
| | | 严重射频模块失败告警导致小区退服,建议先重启RRU板卡,现场可掉电RRU板卡,更换故障射频模块板件 |
| | | 高驻波告警,引起小区退服,检查RRU与天线之间的连接 |
| | | 基站射频模块的TX输出有问题,检查RRU状态是否正常,下电RRU,如果不好,建议更换故障RRU |
| Failure in optical interface | | RRU与BBU连接丢失1.检查基站光模块是否插错 2.检查基站BBU-RRU之间光路是否断连 3.检查RRU侧是否是电源故障 |
| Pipe dangerously overheating | | |
| RF BB bus configuration error | | 严重射频基带单元配置错误导致小区退服,检查并擦拭基站BBU-RRU之间光纤,光模块,光法兰,跳纤.必要时使用OTDR测试BBU-RRU之间全程光路 |
| Increased BER detected on the optical connection to Radio Module | | 光传输质量不好,检查并擦拭基站BBU-RRU之间光纤,光模块,光法兰,跳纤.必要时使用OTDR测试BBU-RRU之间全程光路 |
| | | |
| | | 检查基站小区功率配置,重新下发commission文件,重启或掉电重启故障射频模块 |
| Configuration error: BTS configuration error (not enough HW for LCR) | | 1.检查基站光模块是否插错 2.检查基站BBU-RRU之间光路是否断连 3.检查基站FBBA/C是否有运行正常 |
| Critical BER detected on the optical connection to Radio Module | | 光传输质量不好,检查并擦拭基站BBU-RRU之间光纤,光模块,光法兰,跳纤.必要时使用OTDR测试BBU-RRU之间全程光路 |
| Cell disabled due to unknown problem; logs collected | | |
| Failure in replaceable baseband unit | | |
| | | 检查BBU-RRU之间光路衰耗,检查BBU-RRU之间光模块 |
| Unit (module) dangerously overheating | | |
| Difference between BTS master clock and reference frequency | | 首选恢复基站GPS取时钟,如果时钟是从IP RAN传输设备取,需要IP RAN传输设备锁定时钟 |
| GPS Receiver alarm: control interface not available | | 1.检查GPS线与BBU的连接 2.检查GPS防雷盒 3.检查GSP天线 |
| Phase error exceeds 5 us limit | | 1.检查GPS线与BBU的连接 2.检查GPS防雷盒 3.检查GSP天线 |