BTS告警表.docx

1、BTS告警表CF I1ANrFault Description故障描述Possible Reasons,Recommended Corrective Actions可能的原因,和处理方法Related Fault(s)相关故障0Reset, failed restart attemptReset has occurred on DXU. See Note 2.看Note 21Reset, power on2Reset, switch3Reset, watchdog4Reset, SW fault5Reset, RAM fault6Reset, Internal function change7

2、Xbus faultThis fault is raised when 2 or more TRUs have reported communication problems on the X-bus. 两个以上的TRU报告X-bus有通信故障Possible reasons: faulty backplane, faulty TRUs, intermittent disturbances. Make sure all connections are ok (e.g. bus terminator, extension cable, etc.). Try to switch places be

3、tween TRUs. Try to power off/on the cabinet. If this doesnt help, replace backplane.背板故障,TRU故障,间歇干扰.确认所有连接正确,如总线终端头,连线等.断,加电,如果无效,更换背板.TRXC I1A:158Timing Unit VCO faultThere are 3 possible reasons for this fault:1. The VCO control value has drifted out of range (see fault CF I2A:13). The VCO needs t

4、o be recalibrated. VCO的控制值超出范围(看CF I2A:13),需要重新校正.2. VCO temperature too low. The start-up heater is stuck. VCO的温度太低,启动加热器坏.3. VCO not distributing any 13 MHz signal.VCO没有分配任何13 MHz信号1. Fault I2A:13 will probably warn before I1A:8 arises. Note: VCO control value can be monitored with OMT/OMT2. I2A:1

5、3会在I1A:8之前出现,VCO的控制值可以用OMT/OMT2监控2,3. Probably a HW fault in DXU or power supply problem. Power on/off DXU. If it doesnt help, change DXU.DXU中有硬件故障或者供电有问题,给DXU断,加电,如果无效,更换DXU.CF I2A:139Timing Bus faultThe fault is raised when the timing bus driver in DXU is faulty or if two or more TRUs have reporte

6、d timing reception problems. DXU中的时钟总线驱动器故障或者2个以上的TRU接收时钟出现问题Possible reasons: faulty DXU or DXU backplane, faulty TRU backplane. Try to power off/on DXU, else replace DXU. If this doesnt help, replace backplane or cable between backplanes.DXU或DXU背板故障,TRU背板故障.断加电DXU,或换DXU,如果无效,更换背板或者背板间的连线TRXC I1A:8

7、10Indoor temp out of safe range(Only macro RBS). Temperature in master cabinet is out of the range 0-55C (Note 5). Fault ceases when temperature comes back in range 2-53C.仅为微蜂窝:主机柜内的温度超出0-55C (Note 5).温度回到2-53C故障消除.Possible reasons: - the weather天气- climate system failure 气候系统故障- TRU dummies missing

8、 TRU盖板丢失TRXC I1B:111Not used12DC voltage out of rangeThe DC voltage (in master cabinet) is below 21.2 V (note 4). DC低于21.2VThis means that AC mains has failed and BTS is running on batteries. The batteries are almost empty and will soon be disconnected. Fault will cease when DC voltage goes above 22

9、.2 V.交流电断,由电池供电.电池将要放完断开前,出现此故障.DC电压高于22.2V时故障消失.CF I2A:18 TRXC I1B:3.13Not used14Local Bus faultThe DXU is not able to send any data on local bus DXU在本地总线上不能发送数据.Probably a HW fault (e.g. DXU, backplane, local bus terminator). DXU背板,本地总线中断头等硬件故障CF I2A:3015RBS Database CorruptedThe RBS database (Not

10、e 1) in DXU is corrupted or cannot be read by the SW.DXU中的RBS数据库损坏或不能被SW读取.Reinstall IDB with OMT and press DXU reset. If this doesnt help, change DXU.重新安装IDB,如果无效,更换DXU16RU Database CorruptedThe RU database (Note 1) in DXU is corrupted or cannot be read by the SW.RU数据库损坏Reset DXU. If this doesnt he

11、lp, change DXU.复位DXU,如果无效,更换DXU17HW and IDB inconsistentThe IDB doesnt match the HW present in cabinet (e.g. wrong cabinet type, wrong transmission type, etc.).硬件和IDB不一致Install the right IDB with OMT and press DXU reset.安装正确的IDB18Internal Configuration failedOne or several subsystems in DXU SW have

12、failed their internal configuration (Note 1). DXU SW will not be able to use DXU HW properly.内部设置失败This fault is usually a consequence of faults 15, 16, or 17 (see instructions above). 此故障和15,16和17有关系,19Indoor Temp above safe range(Only micro RBS). Ambient temperature around master cabinet is above

13、55C (Note 5). BSC should take BTS out of operation. If the temperature reaches 65C, BTS will automatically shut down. 仅在微蜂窝,环境温度高于55C,BSC应停止BTS.温度高于65C时,BTS会自动关闭.The fault ceases when temperature goes below 53C. 低于53C故障终止.TRXC I1B:420Indoor Temp below safe range(Only micro RBS). Ambient temperature

14、around master cabinet is below 0C (Note 5). 仅在微蜂窝,环境温度低于0C.Fault ceases when temperature is above 2C. 高于2C故障终止.TRXC I1B:5CF I2ANrFault DescriptionPossible Reasons,Recommended Corrective ActionsRelated Fault(s)0Reset, failed restart attemptReset has occurred on ECU. See note 2.1Reset, power on2Reset,

15、 switch3Reset, watchdog4Reset, SW fault5Reset, RAM fault6Reset, Internal function change7RXDA amplifier current faultAn RXDA in a CDU (or DU) is faulty. Read the BTS logs to find out which side (A or B) is faulty. If the faulty side is not connected to an RX antenna, there is no performance degradat

16、ion. If the faulty side is connected to an RX antenna, then RX looses diversity and sensitivity decreases by 3.5 dB. If the other RX side is also faulty, then fault I1B:0 is raised on RX.CDU或DU中的一个RXDA故障.读取BTS的日志log找出AB中哪边故障.如果故障边没有连接接收天线,性能降低.如果故障边连接了接收天线,那么分集接收丢失敏感度降低3.5dB.如果另一边也故障,那么RX产生l1B:0.Thi

17、s is probably a HW fault on CDU. Try to power off/on CDU and reset DXU before replacing CDU (or DU).CDU硬件故障,断加电CDU或DU并复位DXU,若无效换CDU.RX I1B:08VSWR limits exceededThe VSWR at TRU output or at CDU output has exceeded the class 2 limit (and maybe the class 1 limit as well if fault IB:1 or 4 are present

18、on TX). TRU输出或CDU输出的驻波比超出等级2(1.8).或者超出等级1, TX产生IB:1 or 4.If RU map indicates CDU or CU, the VSWR at TRU output is outside limits. See description of fault I1B:1 on TX.如果RU map为CDU或CU,TRU输出VSWR超限,看TX I1B:1If RU map indicates Antenna, then the VSWR at CDU output is outside limits. See description of f

19、ault I1B:4 on TX. 如果RU map为Antenna,CDU输出VSWR超限,看TX I1B:4.TX I1B:1TX I1B:49Output power limits exceededThe TX power at CDU output is 7 dB lower than expected. (When the difference is 10 dB, fault I1B:2 is raised on TX.) TX在CDU的输出功率比预定的低7dB.当差别为10dB, TX I1B:2There is probably a fault on the TX path. C

20、heck all TX feeders, both inside and outside cabinet. Check the Pf/Pr cables. Check the RU logs to see which TRU is emitting the fault. Try to switch positions between TRUs/CDUs to find out it is the units or the RF cables that are faulty. 检查TX路径上所有的发射线,机柜内和机柜外的.检查Pf/Pr.检查RU logs找出产生故障的TRU.交换TRUs或CD

21、Us间的位置找出是设备还是RF线出的故障Try to reinstall IDB (this has helped in some cases). Other reason: TX high temperature or saturation (see TX I1B:12 and 14).试试重装IDB.其他原因:TX高温或者饱和,看TX I1B:12 and 14.TX I1B:2TX I1B:2010DXU-opt EEPROM checksum fault(Only in DXUs using 5 MHz optional sync reference).The EEPROM of th

22、e DXU optional synchronisation board contains corrupted data. This data is necessary for the CPU to control the 13 MHz VCO (note 3). DXU的EEPROM可选同步板数据损坏Probably a HW fault. It doesnt have any consequence if it occurs while the DXU is running. But at next DXU start-up, the TU will probably not be abl

23、e to synchronise on the 5 MHz reference and fault I1B:1 will be raised on TF.可能硬件故障.更换DXUTF I1B:111ALNA/TMA faultA TMA is probably out of function. RX is not getting any signals from the side using this TMA, which reduces sensitivity by about 3.5 dB. If the other RX side is also faulty, then fault I

24、1B:1 is raised on RX.塔放不工作,敏感度降低3.5dB左右.The current consumption in TMA is supervised from CDU. The fault is raised when current in TMA is outside the range 33-147 mA. These limits are set in IDB but can be changed with OMT R5/2 or later. 塔放的电流超出33-147 mAThe TMA current can be monitored with OMT/OMT2

25、. Make sure that feeders/jumpers are ok and that right IDB is installed. Otherwise replace TMA. 检查馈线跳线连接正确,IDB安装正确.否则更换塔放.Note: If the TMA has two amplifiers and only one is faulty, the current will be pulsated. This will be detected by CDU and reported (in SW 7D and later) as fault CF I2A:20.如果TMA有

26、2个放大器其中一个坏,电流将跳动,产生CF I2A:20RX I1B:112RX maxgain/mingain violated(Only in CDU C+/D). The fault is raised when total gain in RX path (from antenna to TRU) is outside the recommended range. If the gain is too high, there is risk for blocking (a mobile close to BTS overtalks a mobile far away). If the

27、gain is too low, the RX sensitivity is reduced. (仅在CDU C+或D中)RX的总增益超出要求的范围.Note: In CDU C+/D, the gain in RXDA is adjusted by TRU (via CDU-bus) in order to fit the radio configuration. For example, RXDA gain is reduced when TMA is used and increased when no TMA. The most probable reason is that some

28、 attenuation values are wrongly defined in IDB. For example RX feeder loss, HLin/HLout loss, TMA amplification, etc. The total gain in RX path can be checked with DVT monitor: RTS/RX/LC/PATH/LOSSA (LOSSB). Multiply the result by 3/256 to get value in dB. 断加电CDU,复位DXU,若无效,更换CDU.13Timing unit VCO agei

29、ngThe VCO control value is an integer between 0 and 16384 (214). When it gets outside the range 384-16000, fault I2A:13 is raised on CF. TU functionality is not affected but if the control value gets outside the range 273-16111, fault I1A:8 will be raised on CF and RBS functionality will be lost. 时钟

30、单元VCO老化The 13 MHz oscillator in DXU is ageing and therefore its control value is drifting outside the authorised range. DXU should be sent to repair for recalibration of the VCO. Note: the VCO control value can be monitored with OMT/OMT2.更换DXUCF I1A:814CDU supervision/communication lostThere is a co

31、mmunication problem on the CDU-bus between TRU and CDU/CU/DU/FU. Use the BTS logs to localise the fault more precisely. TRU和CDU/CU/DU/FU之间的CDU总线通信故障Possible reasons: - The CDU-bus cable is faulty, disconnected (check backplane connection as well) or wrongly connected (can happen when using Y-cable).CDU总线故障,断开或者连接错误,同时检查Y-cable- The CDU is powered off or faulty CDU断电或故障.- A TRU connected to the CDU-bus is faulty.TRU连接CDU总线错误.TRXC I1B:0 TRXC I2A:22TX I1B:015VSWR/output power supervision lost(Only CDU-D). One or several Pf/Pr cables between FU and CU are disconnected, check t