[srslte-users] UE disconnecting

Wed May 22 09:11:00 UTC 2019

Hey Allan,

First I would ensure you are running with your CPU in PERFORMANCE mode as
follows:

for f in /sys/devices/system/cpu/cpu[0-9]*/cpufreq/scaling_governor ; do
  echo performance > $f
done

Second, you may want to not using a VM as this could cause unforeseen
issues.

Hope this helps!

Regards,
Justin

____
Justin Tallon Ph.D.

Software Radio Systems (SRS)
http://www.softwareradiosystems.com

+353-86-067-0753 | justin.tallon at softwareradiosystems.com

On Wed, May 22, 2019 at 10:06 AM Allan Thankachan <allan.thankachan at 4rf.com>
wrote:

> Hi Andre,
>
> I have a new PC with i7 and 6 cores dedicated to VM with Ubuntu running
> Also installed the latest commit from git.
>
> I am using a Samsung phone to connect to it.
> I still see lot of L and U,
> Attached the configs, logs and the pcap file.
>
> What we are looking is areliable eNB with no disconnection from any tests.
> Our tests would last 4-5 days in a stretch.
>
> Any help will be great.
>
> Regards,
> Allan
>
>
> The information in this email communication (inclusive of attachments) is
> confidential to 4RF Limited and the intended recipient(s). If you are not
> the intended recipient(s), please note that any use, disclosure,
> distribution or copying of this information or any part thereof is strictly
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> received this email in error, please notify the sender immediately by
> return email and then delete all instances of this email from your system.
> 4RF Limited will not accept responsibility for any consequences associated
> with the use of this email (including, but not limited to, damages
> sustained as a result of any viruses and/or any action or lack of action
> taken in reliance on it).-----Original Message-----
> From: Andre Puschmann [mailto:andre.puschmann at softwareradiosystems.com]
> Sent: Wednesday, 6 March 2019 10:21 p.m.
> To: Allan Thankachan; srslte-users at lists.softwareradiosystems.com
> Subject: Re: [srslte-users] UE disconnecting
>
> Allen,
>
> You're using 18.09 and it would be great if you could update to current
> master on Github.
>
> Also, from the logs it seems you have many lates and underflows, make
> sure you are running at max CPU speed and have a good enough PC for the
> bandwidth you're using.
>
> Cheers
> Andre
>
>
>
> On 5/3/19 21:33, Allan Thankachan wrote:
> > Attached the srsLTE version info
> >
> >
> > The information in this email communication (inclusive of attachments)
> is confidential to 4RF Limited and the intended recipient(s). If you are
> not the intended recipient(s), please note that any use, disclosure,
> distribution or copying of this information or any part thereof is strictly
> prohibited and that the author accepts no liability for the consequences of
> any action taken on the basis of the information provided. If you have
> received this email in error, please notify the sender immediately by
> return email and then delete all instances of this email from your system.
> 4RF Limited will not accept responsibility for any consequences associated
> with the use of this email (including, but not limited to, damages
> sustained as a result of any viruses and/or any action or lack of action
> taken in reliance on it).-----Original Message-----
> > From: Allan Thankachan
> > Sent: Wednesday, 6 March 2019 9:33 a.m.
> > To: 'Andre Puschmann'; srslte-users at lists.softwareradiosystems.com
> > Subject: RE: [srslte-users] UE disconnecting
> >
> > Hi  Andre,
> >
> > Attached the version info and the logs,pcap and conf files
> > Ignore the first disconnection. Look from the first connection to the
> last disconnection information. The UE automatically gets disconnected.
> > I am using a VM - Ubuntu 18.0.4
> >
> > Regards,
> > Allan Thankachan
> >
> >
> > -----Original Message-----
> > From: Andre Puschmann [mailto:andre.puschmann at softwareradiosystems.com]
> > Sent: Tuesday, 5 March 2019 10:18 p.m.
> > To: Allan Thankachan; srslte-users at lists.softwareradiosystems.com
> > Subject: Re: [srslte-users] UE disconnecting
> >
> > Hey,
> >
> > which version of srsLTE are you using? Please make sure to use the most
> > recent version.
> >
> > Also, send all logs and PCAPs along.
> >
> > Cheers
> > Andre
> >
> > On 5/3/19 0:12, Allan Thankachan wrote:
> >> Hi,
> >>
> >>
> >>
> >> I finally managed to connect a Samsung phone to B210
> >>
> >> The UE connects when rebooted and disconnects after some time.
> >>
> >>
> >>
> >> On the SRSenb console I see the below messages
> >>
> >>
> >>
> >>
> >>
> >> Disconnecting rnti=0x47.
> >>
> >> ULLLLLLLDisconnectingrnti=0x46.
> >>
> >> RACH:  tti=8951, preamble=12, offset=13, temp_crnti=0x48
> >>
> >> ULLLLLLLLLLLLLLLUnhandledfeature in RRC function:
> >> liblte_rrc_unpack_rrc_connection_setup_complete_msg
> >>
> >>
> >>
> >>
> >>
> >> Can anyone help me on this ?
> >>
> >>
> >>
> >> Thanks and regards,
> >>
> >>
> >>
> >> *Allan Thankachan*
> >>
> >> Software Testing Manager
> >>
> >> 4RF Limited
> >>
> >> DDI:         +64 4 498 4013
> >>
> >> Tel:          +64 4 499 6000
> >>
> >> Fax:         +64 4 473 4447
> >>
> >> Web:       www.4rf.com <http://www.4rf.com/>
> >>
> >> Email:     allan.thankachan at 4rf.com <mailto:allan.thankachan at 4rf.com>
> >>
> >>
> >>
> >> ------------------------------------------------------------------------
> >> The information in this email communication (inclusive of attachments)
> >> is confidential to 4RF Limited and the intended recipient(s). If you are
> >> not the intended recipient(s), please note that any use, disclosure,
> >> distribution or copying of this information or any part thereof is
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> >> consequences of any action taken on the basis of the information
> >> provided. If you have received this email in error, please notify the
> >> sender immediately by return email and then delete all instances of this
> >> email from your system. 4RF Limited will not accept responsibility for
> >> any consequences associated with the use of this email (including, but
> >> not limited to, damages sustained as a result of any viruses and/or any
> >> action or lack of action taken in reliance on it).
> >>
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