[srslte-users] Please share ue.conf example for LimeSDR-USB

[Marc T.]

Hi all,

i just wanted to ask in the community if someone could share a LimeSDR-USB ue.conf for srsUE with me. I would be really interested in the rf, rrc and phy part - and a maybe a short note about the used antennas on the board itself and/or how it was connected (over the air or directly cabled)… actually all infos to understand why a certain parameter was set in the ue.conf .

After my first post (http://www.softwareradiosystems.com/pipermail/srslte-users/2020-January/003311.html <http://www.softwareradiosystems.com/pipermail/srslte-users/2020-January/003311.html>) was not seen, i was still able to get it up and running with 19.06 and a huge effort.
19.12 is not working because of some asn1 decoding issues.

Today i had the first call where i was able to push some traffic, the connections duration was 25min before it broke.
But i still face some lates "[WARNING] L“ 
and other issues like 
"/home/sml/srsLTE/lib/src/phy/mimo/precoding.c.1111: Error predecoding CCD: Invalid combination of ports 2 and rx antennax 1 
/home/sml/srsLTE/lib/src/phy/phch/pdsch.c.927: Error predecoding“
or
„Warning PDU queue dispatched 25 packets“
or
„[ERROR] SetFrequencyCGEN(1.92 MHz) - cannot deliver requested frequency
LSet master clock rate to 491.52 MHz
[WARNING] Rx LPF min bandwidth is 4MHz when TIA gain is set to -12 dB
[INFO] RX LPF configured
Set Rx bandwidth to 2.50 MHz
[ERROR] Rx calibration: MCU error 5 (Loopback signal weak: not connected/insufficient gain?)
[INFO] Filter calibrated. Filter order-4th, filter bandwidth set to 5 MHz.Real pole 1st order filter set to 2.5 MHz. Preemphasis filter not active
[INFO] TX LPF configured
Set Tx bandwidth to 5.00 MHz
[WARNING] popping from TX, samples popped 593/1020
[INFO] Tx calibration finished
Setting manual TX/RX offset to 57 samples
.SoapySDRDevice_readStream returned -6: TIME_ERROR“
—> then the connection broke…

So my intention is if there are some parameter which i could improve in the ue.conf.

Thank you in advance,
Marc



Mit freundlichen Grüßen, 
Best regards,

Marc Triefelder

E-Mail:	m.triefelder at gmail.com 





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