[srslte-users] SRS support

[Naveen Rawat]

Hi Alejandro,

Thanks for response and this is good to know. Can you tell me to what extent were you able to make it work. I am worried that after SRS is sent by UE, since eNB cannot understand it, this could make the connection un-stable.

Please help me with following questions:

  1.  Location of your modifications.
  2.  With srsUE, you said SRS could be enabled, but srsEnb could not understand them. Did connection drop or did not even work?
     *   If srsENB somehow worked, did you make changes to ignore SRS received ?
  3.  Did you make progress with smartphone for SRS ?

I am trying to achieve something similar to what you did, by using SRS at eNB for my experimentations.

Thanks and Regards
Naveen Rawat


From: ALEJANDRO BLANCO PIZARRO <100283180 at alumnos.uc3m.es>
Date: Wednesday, May 22, 2019 at 1:56 AM
To: Naveen Rawat <naveen.rawat at cohere-technologies.com>
Cc: "srslte-users at lists.softwareradiosystems.com" <srslte-users at lists.softwareradiosystems.com>
Subject: Re: [srslte-users] SRS support

Hi Naveen,

From my experience, SRS is not fully handled by srsLTE. As far as I know, srsUE is able to send it but srsenb cannot use it.

One year ago, I worked with SRS and basically what I did was to add some parameter to SIB2 and RRC messages to active them, thus the srsUE can send it. As the srsenb cannot handle it, I saved the SRS in a file and process it offline.

In addition, I tried to configure the SRS and check if a smartphone can send it, but I couldn't do it. I used the srsUE for my application.

Here you have the message that I posted in the mailing list of srsLTE: http://www.softwareradiosystems.com/pipermail/srslte-users/2018-May/001575.html. Thanks to Ismael I could use the SRS.

If you need further information tell me. I can tell you what was my configuration and which files of the code I modified.

Best,
Alejandro

El mar., 21 may. 2019 a las 9:10, Naveen Rawat (<naveen.rawat at cohere-technologies.com<mailto:naveen.rawat at cohere-technologies.com>>) escribió:
Hi srsLte Team,

I am looking for setting for enabling SRS. I found a bug was opened for this but looks like bug was closed with a commit. However I am unable to find the related config. Can you please tell if this was implemented from eNB side and what is the config to trigger that.

Thanks and Regards
Naveen Rawat
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