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爱立信6601设备出现2A:33告警,如何处理啊

时间:03-16 整理:3721RD 点击:
如题。
爱立信6601设备出现2A:33告警,如何处理啊

2A前面是什么啊,下面一个是CF 一个是TRXC,你自己对应吧。这英文应该能看懂吧。
SO CF I2A:33 - RX Diversity Lost
   There is an imbalance in signal strength between the

receiver paths for one or more TRXs. Depending on
which RX path has the lowest signal strength, one or
more of the related faults are also raised.
To avoid false alarms, the fault has a long filter time
that depends on the traffic load. Therefore, the fault
can occur several days after installation. Despite the
long filter time, a single mobile might cause an alarm
if the call is made when the traffic is low and the call
continues for a long time in an area with poor coverage,
for example, during nights and behind the antenna.
When traffic increases, the alarm normally ceases. To
16 1/006 51-LZA 701 6002 Uen B | 2010-08-12
SO CF Fault Maps
correct this kind of alarm, the radio cell planning must
be revised.


SO TRXC I2A:33 - Inter TRX Communication Fault
Related RUs SO TRXC RU:0 - TRU, dTRU, DRU, RUG, RRU or
DUG 20 Section 4.6 SO TRXC Replacement Unit Map
on page 78
Description The communication between TRXs has problems or
is degraded.
4.3.23 SO TRXC I2A:36 - RX Filter Loadfile


cf:i2a:33处理方法
1.采用OMT监测SSI值判断哪路接收支路存在问题,检查该接收支。(查看是否天线接错);                      2.检查IDB配置,Antenna Sharing是否需要打开;     3.检查天馈是否满足分集接收的要求;                4.检查驻波是否超出要求。

故障名称 分集接收丢失
SO CF RU:40– 天线
具体描述 此故障对DXU进行复位或重启相应故障单元的RRUS/RUS,告警会消失。
如果没有真正解决问题,50分钟后会再出现此故障。
现在基站用的软件版本在出现CF I2A:33告警时,一般都会伴有CF I2A:57告警出现。
当CF I2A:33告警处理好时CF I2A:57告警一般也会消失。
注意:在处理此类告警时要注意测SSI值和RX PATH IMBALANCE值。
每个载频的接收分路RX A减去RX B,如为正值,表明B路接收分路存在问题,
如为负值,表明A路接收分路存在问题。这样的测量每5分钟更新一次,但必须是在基站有话务量的情况下SSI测量的才准确些
操作 根据以下说明排除故障:
◆ 检查IDB配置是否正确;
◆ 判定哪路接收(RXA/RXB)有问题;
◆ 检查RX连线是否连接正确,并且RX线缆OK;
◆ 判定天馈系统是否有问题,如VSWR值高,馈线头子没有做好;
◆ 如果所有小区(2个或2个以上小区)的所有载波的SSI值的绝对值都大于12,有可能小区天馈交叉接了;
◆ 如果单个或几个载波SSI值偏高,有可能是硬件有问题,或者和硬件连接的RX线有问题,或者RX线没有连接好。
◆ 更换RUS/RRUS。

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