[srsran-users] srslte-users Digest, Vol 71, Issue 11
Mirko Kovacevic
northmirko at gmail.com
Fri May 27 12:24:20 UTC 2022
Hi,
> I played with this.
>
Setup:
> Virtual srsRAN UE ⇾ ZMQ → Vitrual srsRAN ENB → commercial MME.
> Radio layer for NB-IOT is not quite yet ready. But if you don't need this,
> you can pretend to carry NB-IOT data over 1,4MHZ (6RB), and test some
> features in commercial MME.
> You can play with NAS, LTE_MME code, S1AP of eNB and present UE as a
> NB-IOT device to MME.
> You can craft yourself, Control Plane Service Request, to sent actual
> data, set NAS options for NB-IOT, and put RAT-Type in S1-setup message
> (this is not easy at all!!!!!!).
> Not easy, but feasible. Ugly to some extent, but fun.
>
>
>
>
>
>
>
> On Tue, Jan 26, 2021 at 12:47 PM <
> srslte-users-request at lists.softwareradiosystems.com> wrote:
>
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>> Today's Topics:
>>
>> 1. Can I build a NB-IoT Base station via srsLTE? (林裕翔)
>> 2. Re: *** buffer overflow detected ***: srsepc terminated
>> (Andrea Valori)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 25 Jan 2021 17:17:32 +0800
>> From: 林裕翔 <623yuxiang at gmail.com>
>> To: srslte-users at lists.softwareradiosystems.com
>> Subject: [srslte-users] Can I build a NB-IoT Base station via srsLTE?
>> Message-ID:
>> <
>> CABr2Vo4C_Fth_3w7hffmZXsWgHTd_zdVnf+FOcoArwvh2CoZbQ at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Dear All:
>>
>> Thank you for developing and maintaining srsLTE. I conduct many
>> experiments
>> through it.
>>
>> I know I can search the NB-IoT device via srsLTE (open source).
>> Can I build a NB-IoT Base station via srsLTE (open source), or is it a
>> paid
>> function?
>> I want to build it and let the NB-IoT device connect.
>>
>> Best regards,
>> Richard
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>> ------------------------------
>>
>> Message: 2
>> Date: Mon, 25 Jan 2021 14:50:56 +0100
>> From: Andrea Valori <avalori at gmail.com>
>> To: Andre Puschmann <andre.puschmann at softwareradiosystems.com>
>> Cc: srslte-users at lists.softwareradiosystems.com
>> Subject: Re: [srslte-users] *** buffer overflow detected ***: srsepc
>> terminated
>> Message-ID:
>> <CAMz+kDL3QNrsWog+=
>> mSQZXUGfwT_O6turSPH8cKJikroqAdigg at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Many thanks Andre,
>>
>> I am a bit of a beginner and therefore I may be asking for simple
>> things...
>> I guess you are referring to debian, since I found mention to the services
>> on the git page https://github.com/srsLTE/srsLTE/tree/master/debian
>>
>> But do I have to build from source, install the package, or in both cases
>> should work? I saw that it is recommended to use UHD version 3.15, which I
>> understand can only be chosen if installed before building srslte...
>> correct?
>>
>> Regards,
>>
>> Andrea
>>
>>
>> On Fri, 22 Jan 2021 at 09:28, Andre Puschmann <
>> andre.puschmann at softwareradiosystems.com> wrote:
>>
>> > On 21/1/21 21:27, Andrea Valori wrote:
>> > > Andre,
>> > >
>> > > Many thanks for your reply.
>> > > I will update the version anyway (but I knew was not the issue since
>> it
>> > > was working previously with the same version).
>> > > You pointed me in the right direction with the sentence "another EPC
>> > > running on the same socket", there was a bunch of other stuff running
>> (I
>> > > did try an attempt using Open5gs as EPC and I think some of those
>> > > services were still running and were the culprit).
>> > >
>> > > On the line of this, is there the possibility to run srsEPC and srsENB
>> > > as services, to ensure that they will restart in case of crashes
>> (which
>> > > I did not manage to avoid completely)?
>> >
>> > We don't ship any script to run the apps as services. I think one of the
>> > package maintainers, can't remember if Arch, Suse or Debian, was adding
>> > runscripts. Depending on your particular OS you might find those useful.
>> >
>> > Thanks
>> > Andre
>> >
>> > >
>> > > Thanks
>> > >
>> > > Andrea
>> > >
>> > >
>> > > On Thu, 21 Jan 2021 at 17:04, Andre Puschmann
>> > > <andre.puschmann at softwareradiosystems.com
>> > > <mailto:andre.puschmann at softwareradiosystems.com>> wrote:
>> > >
>> > > Hey Andrea,
>> > >
>> > > please could you try with the current srsLTE 20.10.1 release.
>> > >
>> > > If the issue still persists, please report again.
>> > >
>> > > Besides the fact that we always recommend the most recent
>> version, it
>> > > seems that there is an issue with your SCTP socket?
>> > >
>> > > Have you SCTP support in your kernel? Or is there maybe another
>> EPC
>> > > running on the socket?
>> > >
>> > > Thanks
>> > > Andre
>> > >
>> > >
>> > > On 21/1/21 15:35, Andrea Valori wrote:
>> > > > Dear All,
>> > > >
>> > > > I am hitting this error when starting srsepc... is realy
>> > frustrating
>> > > > since I managed in the past to have the epc working... now I
>> tried
>> > to
>> > > > re-install everything, check config but no success.
>> > > > many thanks in advance for any help you might be able to give
>> me.
>> > > >
>> > > > In terminal:
>> > > > Built in Release mode using commit d045213fb on branch HEAD.
>> > > >
>> > > >
>> > > > --- Software Radio Systems EPC ---
>> > > >
>> > > > Reading configuration file /home/bts/.config/srslte/epc.conf...
>> > > > HSS Initialized.
>> > > > Error binding SCTP socket
>> > > > MME S11 Initialized
>> > > > MME GTP-C Initialized
>> > > > MME Initialized. MCC: 0xf001, MNC: 0xff01
>> > > > SPGW GTP-U Initialized.
>> > > > SPGW S11 Initialized.
>> > > > SP-GW Initialized.
>> > > > *** buffer overflow detected ***: srsepc terminated
>> > > > srsLTE crashed... backtrace saved in
>> './srsLTE.backtrace.crash'...
>> > > > --- exiting ---
>> > > >
>> > > > In Log:
>> > > > --- command='srsepc' version=19.12.0 signal=6 date='21/01/2021
>> > > 15:26:24' ---
>> > > > srsepc(+0x45cc8) [0x55eaa0064cc8]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x3f040) [0x7f8f7086a040]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7f8f70869fb7]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7f8f7086b921]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x89967) [0x7f8f708b4967]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x134b8f) [0x7f8f7095fb8f]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x134bb1) [0x7f8f7095fbb1]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x1328a0) [0x7f8f7095d8a0]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(+0x134a9a) [0x7f8f7095fa9a]
>> > > > srsepc(+0x1cf6d) [0x55eaa003bf6d]
>> > > > srsepc(+0x12c95) [0x55eaa0031c95]
>> > > > /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7f8f71c3f6db]
>> > > > /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7f8f7094c71f]
>> > > >
>> > > > _______________________________________________
>> > > > srslte-users mailing list
>> > > > srslte-users at lists.softwareradiosystems.com
>> > > <mailto:srslte-users at lists.softwareradiosystems.com>
>> > > >
>> http://www.softwareradiosystems.com/mailman/listinfo/srslte-users
>> > > >
>> > >
>> >
>> >
>> > --
>> > Andre Puschmann
>> >
>> > Software Radio Systems (SRS)
>> > http://www.softwareradiosystems.com
>> >
>> > PGP/GnuPG key: 6C42AB31
>> > fingerprint: 137A AE49 785B A445 257C 8AD7 D877 A498 6C42 AB31
>> >
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>> End of srslte-users Digest, Vol 71, Issue 11
>> ********************************************
>>
>
>
> --
>
> *Puno pozdrava,Mirko Kovacevic*
>
>
>
--
*Puno pozdrava,Mirko Kovacevic*
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