[srslte-users] Sounding reference signal

[Ismael Gomez]

Hi,

srsENB does not handle them but srsUE does support them and we have tested
that. You should be able to modify the SIB2 and RRC messages and activate
them.

On Fri, 23 Feb 2018 at 18:10 ALEJANDRO BLANCO PIZARRO <
100283180 at alumnos.uc3m.es> wrote:

> Dear srsLTE community,
>
> I am working on Zadoff-chu sequences in order to get an estimation of how
> far is the UE from the eNodeB, in other words, I am interesting in getting
> a more accuracy timing advance estimation.
>
> Our first approach was to used the random access preamble to calculate the
> timing advance, but the resolution in distance is not as good as our
> desirable value. For this reason, I have thought about using the sounding
> reference signal, which are based on zadoff-chu sequences.
>
> As far as I know, the sounding reference signals are implemented in the
> code, but when the srsenodeb and srsue are executed I did not see anything
> about the use of this signal.
>
> In addition, I've realized that within the sib2 configuration, it exists a
> parameter,srs_ul_cnfg->present, which enable the srs configuration. But
> this parameter is 0, so there is no configuration.
>
> Any help to find how enable the sounding reference signal will be really
> appreciated.
>
> Best regards,
> Alejandro
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