LTE APC cal fail 问题
05-08
测试很多遍,TX path loss cal,coupler loss 有时值很大,有时很小,有时又是正常的,会是什么原因呢?
CLteApcClass::CouplerLossEvaluation()
[Info] Power detector report: -1479
[Result] PD Gain: (-2965, 16.48 dBm) from [PRF:18] (-959, -1479, -46.22 dBm) when real Pout(15.98)- offset(-0.50)
[*Error*] coupler loss (-2965) exceed the range[-500,-1200]
------ Evaluate TX path loss calibration result of Band: 20 Start ------
Power Step, Frequency, TargetPower, PA mode, PA Gain, PD Gain, PD Report, PD Offset, TX Power, Diffence, BackOff, Result
0, 8485, 18.000, 0, -1, 0, -1479, 0.000, 15.978, 0.000, 0.000, 0
------ Evaluate TX path loss calibration result of Band: 20 End ------
[*Error*] Got error code:[2632]
CLteApcClass::CouplerLossEvaluation()
[Info] Power detector report: -1479
[Result] PD Gain: (-2965, 16.48 dBm) from [PRF:18] (-959, -1479, -46.22 dBm) when real Pout(15.98)- offset(-0.50)
[*Error*] coupler loss (-2965) exceed the range[-500,-1200]
------ Evaluate TX path loss calibration result of Band: 20 Start ------
Power Step, Frequency, TargetPower, PA mode, PA Gain, PD Gain, PD Report, PD Offset, TX Power, Diffence, BackOff, Result
0, 8485, 18.000, 0, -1, 0, -1479, 0.000, 15.978, 0.000, 0.000, 0
------ Evaluate TX path loss calibration result of Band: 20 End ------
[*Error*] Got error code:[2632]
我也不知道LTE
LTE 很深奥,期待高人啊
最好放出整个LOG,这样好分析
功率不够啊,[Result] PD Gain: (-2965, 16.48 dBm) from [PRF:18] (-959, -1479, -46.22 dBm) when real Pout(15.98)- offset(-0.50)
校准出来的功率是15.98,目标功率是16.48.所有偏差0.5db,测试下饱和功率看是不是不够。
这是做生产还是研发?
如果测试不稳定那就首先检查下连接是否完好,这是TX power不够,线损可能需要重新设定。
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