描述:
有些场景下,需要检查TX power的值,例如:
手机功耗问题:TX power越大,手机耗电越高
下行信号良好情况下,无线连接异常:检查TX power是否有打到最大值,如已使用最大值发射,可能是基站和手机之间距离太远导致上行发送异常
Tx power need to be checked in some sceneries:
1, UE Power consumption issue:
Bigger tx power may lead to larger power consumption;
2, Radio connection abnormal within good downlink signal:
Check whether the tx power reach the max value, If it reached the max, the uplink transmit fail may be caused by the
distance which is too far between the UE and Base station.
方法:
1, 如果MEME配置了tx power,则通过trace FDD_CPHY_MEASUREMENT_TX_POWER_PERIODIC
可以查看底层上报给上层或者NW的tx power;
TX power can be reported to higher layer or NW if MEME configures
it(tx_power),in trace FDD_CPHY_MEASUREMENT_TX_POWER_PERIODIC;
3, 关于tx power的最大值,
是通过UE power class进行定义并与band对应的,可在trace RRC_CONNECTION_SETUP_COMPLETE中进行查看;
Regarding Max TX Power:
It is defined by UE power class as below mapped to the Band.Like
RRC_CONNECTION_SETUP_COMPLETE;