[srslte-users] MAC scheduling

[Fateme Rezaee]

Dear Kewin,
Thanks for your response. Do you mean that I should change the following
function? If so, how about the other related functions such as
"dl_metric_rr::new_allocation()" or "dl_metric_rr::update_allocation()".
Should I make any changes to them or it is not needed?

std::map<uint16_t, sched_ue>::iterator iter = ue_db.begin();
  std::advance(iter,priority_idx);
  for(uint32_t ue_count = 0 ; ue_count < ue_db.size() ; ++iter, ++ue_count)
{
    if(iter==ue_db.end()) {
      iter = ue_db.begin(); // wrap around
    }
    sched_ue *user = (sched_ue*) &iter->second;
    user->dl_next_alloc = apply_user_allocation(user);
  }

Thank you.

On Mon, Oct 29, 2018 at 11:44 AM Kewin Rausch <krausch at fbk.eu> wrote:

>
> Look in scheduler_metric.cc, procedure dl_metric_rr::new_tti for the
> Downlink, ul_metric_rr::new_tti for the Uplink.
> There is where the next TTI is organized in term of physical resources and
> UEs. Changing that will change the allocation policy to the one you want.
>
> Cheers,
> Kewin R.
>
> On Sun, Oct 28, 2018 at 5:12 PM Fateme Rezaee <fateme.rezaee1368 at gmail.com>
> wrote:
>
>> Dear all,
>>
>> As I understood, the classes "dl_metric_rr"  and "ul_metric_rr" are for
>> the scheduling which are based on round robin. I can not understand where
>> the round robin scheduler is applied directly. I checked the file
>> scheduler.cc and the following function
>> sched::dl_sched_data(dl_sched_data_t data[MAX_DATA_LIST])
>> called in
>> sched::dl_sched(uint32_t tti, sched_interface::dl_sched_res_t*
>> sched_result)
>> Schedules data to users. I want to add a class to have the  proportional
>> fair scheduler instead of round robin scheduler but I do not know whether
>> the  PF class should be added to the project similar to the "dl_metric_rr"
>> class or it should be replaced with "dl_metric_rr" class.  could you plz
>> tell me where I should apply the changes.
>> Thank you,
>>
>> --
>>
>> *******************************************************************************
>>
>>
>> Best regards,
>>
>> Fatemeh.Rezaei
>>
>> Ph.D. Student in Communication Systems Engineering
>>
>> Department of Electrical and Computer Engineering, Yazd University
>>
>> Yazd, Iran
>>
>>
>> *******************************************************************************
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>>
>
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-- 
*******************************************************************************


Best regards,

Fatemeh.Rezaei

Ph.D. Student in Communication Systems Engineering

Department of Electrical and Computer Engineering, Yazd University

Yazd, Iran

*******************************************************************************
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