[srslte-users] Multiple UEs using zmq

[J Giovatto]

Hey Folks,

I see another way to run 2 ue's for the near term.

By setting the enb to use carrier aggregation we end up with 2 channels
to choose from.
https://docs.srsran.com/en/latest/app_notes/source/2ca/source/index.html

So setting each ue to use a single carrier each on a different zmq
endpoint seems to do the trick. 

I created a demo using lxc containers here for the zmq and shmemrf
impls, both seem to work ok, see top level demo dir here:

https://github.com/jgiovatto/srsLTE/tree/faux_rf

If nothing else you can use it to create the config files.

Best
Joe


On 5/17/21 8:03 AM, Francisco Paisana wrote:
> Hey,
>
> You can add more than one UE or more than one eNB if you have an zmq
> broker. A good place to start would be to look into the S1 Handover
> example that involves two eNBs
> in https://docs.srsran.com/en/latest/app_notes/source/handover/source/index.html#s1-handover
> <https://docs.srsran.com/en/latest/app_notes/source/handover/source/index.html#s1-handover>.
> With a similar GR flowgraph, and by changing zmq ports in the enb and
> ue conf files, you will be able to simulate more than one UE.
>
> Kind Regards,
> Francisco
>
>
> On Mon, May 17, 2021 at 12:18 PM Alessio Diamanti
> <alessio.diama at gmail.com <mailto:alessio.diama at gmail.com>> wrote:
>
>     Hi all,
>     I am interested in running several UE with 1 eNB using zmq. I
>     think that containers would be perfect to simulate more than one
>     UE, but as far as I understand at present only one UE is easily
>     supported with zmq. Here 
>
>     http://www.softwareradiosystems.com/pipermail/srslte-users/2021-May/004264.html
>     <http://www.softwareradiosystems.com/pipermail/srslte-users/2021-May/004264.html> 
>
>     someone asked how to do that. Is it possible to have further
>     details about that?
>     I am not an expert with the radio access and I would like to have
>     some hints about how a GNU Radio flowgraph could do "all the hard
>     work of syncing up the DL/UL signals from all participants".
>     Thanks,
>     Alessio
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