[srslte-users] R: UE shows errors when fixed DL MCS is set at eNB

[Corrado Puligheddu]

Dear Andre,
in my case the problem is easily reproducible: it always happens before the UE is able to attach.
You can find the logs and pcaps attached to this email. I’m using the latest 20.04.1 release, built from source.

Thank you
Regards
Corrado

Da: Andre Puschmann
Inviato: venerdì 8 maggio 2020 21:25
A: Corrado Puligheddu; srslte-users at lists.softwareradiosystems.com
Oggetto: Re: [srslte-users] UE shows errors when fixed DL MCS is set at eNB

Hi Corrado,

On 8/5/20 10:46, Corrado Puligheddu wrote:
> The error I’m getting from the UE is the following:
> 
> /home/corrado/srslte/lib/src/mac/pdu.cc.207: Corrupted MAC PDU
> (read_len=49, pdu_len=7)
> 
> I’m compiling from source using the last commit on main branch. I’m
> running srsue and srsenb on ubuntu 18.04, using USRP b210 boards with
> UHD-3.15.LTS.
> 
> Are you able to replicate this issue? Of course I’m available to perform
> more tests if needed.

The biggest problem when debugging such issues is usually reproducing it
reliably such that proper logs can be taken for analysis.

If you can reproduce it, please send us logs and PCAPs of a run (the
same run to allow comparison) for both UE and eNB with loglevel info for
PHY and MAC.

Thanks
Andre



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