[srsran-users] [5G SA] UE cannot attach hanging at PBCH-MIB: CRC failed

[Mats Ekholm]

Hi,

I'm testing a 5G SA End-to-End scenario using srsRAN and a pair of USRP
N300.
UE is running by srsue, and gNb is running by srsenb. All config files are
attached.
UE can detect SSB and is trying to decode MIB but CRC is always failed.
I was playing with tx- and rx-gains on both ue ang gnb sides but it didn't
help to go any further.

In the UE log, there are two lines with PBCH-NR Rx. The first one has
crc=OK but the second has crc=KO. Why is that?
[image: image.png]
Full ue and gnb logs are attached as well.
Any ideas on how to fix this are much appreciated.

I was also trying to get iq samples received by the usrp on the ue side. I
rebuilt the project with RelWithDebInfo but didn't get any
srsran_backtrace.log file with debug symbols after running the srsue.
Please advise on how to get these raw symbols.

Thanks.

Kind regards
Mats
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