[srsran-users] Multiple USRPs in a single host

[Jordi Baranda]

Hi Xavier,

Thanks you very much for your quick answer and the pointer. I think I 
will need more help.

As I read in the link, it talks about combining USRPs into a single 
device, but the idea is to have multiple USRPs (e.g. 2) connected to a 
host and specify which one use you want to use when launching an enodeB 
process. However, as I understand from the webpage, you could assign 
different IP address to each USRP and then your suggestions is to 
specify it through the "rf.device_args" property, isn't it?

I am in the process of building the mentioned scenario (for the moment I 
am working with zmq), so I think that if it works as mentioned before, I 
think it would be very useful if you could share an example of the 
string needed to launch the enodeb process in this case, specially for 
the "rf.device_args" to specify using a USRP in a different address than 
the default one (and any other parameters that would need to be 
specified rather than the default ones).

Again, thank you very much

Best regards,

Jordi

On 11/01/2022 18:44, Xavier Arteaga wrote:
> Hi Jordi,
> First of all, many thanks for your interest.
>
> It is possible with X300 series. Use rf.device_args property to 
> configure the RF front end. This page may help you: 
> https://files.ettus.com/manual/page_multiple.html
>
> As this functionality is for expert usage, it could be that some more 
> device arguments are required. Let me know if you need more help.
>
> Kind regards,
> Xavier
>
>
>
> On Tue, 11 Jan 2022 at 17:03, Jordi Baranda <jorge.baranda at cttc.es> wrote:
>
>     Dear srsran-users,
>
>     I am starting to play with srsran and I am contacting you to ask
>     if (and how) when launching a srsran enodeB process you could
>     select the USRP to use if multiple USRPs are connected to the host
>     running the enodeB process.
>
>     Thanks you very much in advance for your time and attention,
>
>     Best regards,
>
>     Jordi
>
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*Jorge Baranda*
Researcher (R2C), PhD
jorge.baranda at cttc.cat


	

Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Av. Carl Friedrich Gauss, 7 - Building B4
08860 - Castelldefels
Tel.: +34 93 645 29 00

_DATA PROTECTION INFORMATION. Data controller: CENTRE TECNOLOGIC DE 
TELECOMUNICACIONS DE CATALUNYA (G62616586):_

We inform you that your identification data and the data contained in 
the emails and attached files can be incorporated into our databases, in 
order to maintain professional and / or commercial relationships, and 
that it will be preserved throughout the relationship. According to the 
current regulations, you can exercise your right to access, 
rectification, erasure, restriction of processing, to portability and to 
object by sending an email to dpo at cttc.cat.
This message and any attached document, where appropriate, may be 
confidential and intended for the original recipient only.


L'informem que les seves dades identificatives i les compreses als 
correus electrònics i fitxers adjunts poden ser incorporades a les 
nostres bases de dades amb la finalitat de mantenir relacions 
professionals i/o comercials i, que seran conservades mentre es 
mantingui aquesta relació. Si ho desitja, pot exercir el seu dret 
d'accés, rectificació, supressió, limitació del tractament, portabilitat 
i objecció enviant un correu electrònic a dpo at cttc.cat.
Aquest missatge i qualsevol document adjunt, en el seu cas, pot ser 
confidencial i destinat únicament a la persona o entitat a qui s'hagi 
enviat.

Before printing this e-mail or attachments, be sure it is necessary. It 
is in our hands to protect the environment.
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