[srslte-users] A question about the code scheduler_metric.cc

[Francisco Paisana]

Hey Michael,

That's the general idea of the priority_idx. However, it is not guaranteed
that a UE gets allocated in its priority "turn". For instance, if, for
priority idx = 0, UE 0 doesn't have any data to transmit, then the
scheduler will try to allocate the UE 1 instead. Furthermore, the scheduler
might allocate multiple UEs in the same TTI, if a given UE allocation
didn't fill the whole bandwidth.

Kind Regards,
Francisco


On Thu, May 13, 2021 at 8:56 AM Michael Seguin <mpseguin at buffalo.edu> wrote:

> Hello srsLTE users,
>
> In the metric_scheduler.cc in the folder srsenb/src/stack/mac
>
> line 51 has a priority_idx. If that was changed to randomly pick a value
> would that change the user that gets allocated ? Instead of doing it based
> on TTI.
>
> Say we have two UEs, a base station, and an EPC.
> Priority_idx would be
> 0 then 1 then 2 then 0 then 1 then 2
>
> If I changed it to
> 2 then 1 then 0 then 2 then 1 then 2 then 1 then 1 then 0
>
> Would that change the order in which the UEs get allocated ?
>
> Thanks for all the help, very new to all this!
>
> [image: image.png]
>
> Thanks,
>
> Mike
>
>
>
>
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