maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Check BSR & Create UE_sched for UL new transmission

Browse Source
This commit is contained in:
ChiehChun
2021-02-07 10:39:40 +01:00
committed by Robert Schmidt
parent c8168085dd
commit 56831038d0
1 changed files with 33 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c
+33 -1
View File
@@ -514,13 +514,15 @@ void pf_ul(module_id_t module_id,
uint8_t *rballoc_mask,
int max_num_ue) {
const int UE_id = 0;
const int CC_id = 0;
const int tda = 1;
NR_ServingCellConfigCommon_t *scc = RC.nrmac[module_id]->common_channels[CC_id].ServingCellConfigCommon;
NR_UE_info_t *UE_info = &RC.nrmac[module_id]->UE_info;
const int min_rb = 5;
float coeff_ue[MAX_MOBILES_PER_GNB];
// UEs that could be scheduled
int ue_array[MAX_MOBILES_PER_GNB];
NR_list_t UE_sched = { .head = -1, .next = ue_array, .tail = -1, .len = MAX_MOBILES_PER_GNB };
/* Loop UE_list to calculate throughput and coeff */
for (int UE_id = UE_list->head; UE_id >= 0; UE_id = UE_list->next[UE_id]) {
@@ -583,6 +585,36 @@ void pf_ul(module_id_t module_id,
>> 3;
/* Check BSR */
if (sched_ctrl->estimated_ul_buffer - sched_ctrl->sched_ul_bytes <= 0) {
/* if no data, pre-allocate 5RB */
while (rbStart < bwpSize && !rballoc_mask[rbStart]) rbStart++;
if (rbStart + min_rb >= bwpSize) {
LOG_W(MAC, "cannot allocate UL data for UE %d/RNTI %04x: no resources\n",
UE_id, UE_info->rnti[UE_id]);
return;
}
sched_pusch->rbStart = rbStart;
sched_pusch->rbSize = min_rb;
sched_pusch->tb_size = nr_compute_tbs(sched_pusch->Qm,
sched_pusch->R,
sched_pusch->rbSize,
ps->nrOfSymbols,
ps->N_PRB_DMRS * ps->num_dmrs_symb,
0, // nb_rb_oh
0,
1 /* NrOfLayers */)
>> 3;
/* Mark the corresponding RBs as used */
n_rb_sched -= sched_pusch->rbSize;
for (int rb = 0; rb < sched_ctrl->sched_pusch.rbSize; rb++)
rballoc_mask[rb + sched_ctrl->sched_pusch.rbStart] = 0;
continue;
}
/* Create UE_sched for UEs eligibale for new data transmission*/
add_tail_nr_list(&UE_sched, UE_id);
/* Calculate coefficient*/
coeff_ue[UE_id] = (float) tbs / ul_thr_ue[UE_id];