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Check for CCE allocation in UL PP

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This commit is contained in:
Robert Schmidt
2020-04-06 13:56:59 +02:00
parent 36ebfe04f6
commit 1372e02206
3 changed files with 22 additions and 4 deletions
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openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
+1 -1
View File
@@ -1353,7 +1353,7 @@ schedule_ulsch_rnti(module_id_t module_idP,
if (UE_template_ptr->pre_allocated_nb_rb_ul < 1)
continue;
int dci_ul_pdu_idx = -1;
int dci_ul_pdu_idx = UE_template_ptr->pre_dci_ul_pdu_idx;
if (dci_ul_pdu_idx < 0) {
dci_ul_pdu_idx = CCE_try_allocate_ulsch(
module_idP, CC_id, subframeP, UE_id, UE_sched_ctrl_ptr->dl_cqi[CC_id]);
openair2/LAYER2/MAC/mac.h
+3
View File
@@ -831,6 +831,9 @@ typedef struct {
/// index of Allocated RBs by the ulsch preprocessor
int8_t pre_allocated_rb_table_index_ul;
/// index of allocated HI_DCI0
int pre_dci_ul_pdu_idx;
/// total allocated RBs
int8_t total_allocated_rbs;
openair2/LAYER2/MAC/pre_processor.c
+18 -3
View File
@@ -509,6 +509,11 @@ int round_robin_ul(module_id_t Mod_id,
UE_info->UE_sched_ctrl[UE_id].round_UL[CC_id][harq_pid]);
continue;
}
const uint8_t cqi = UE_info->UE_sched_ctrl[UE_id].dl_cqi[CC_id];
const int idx = CCE_try_allocate_ulsch(Mod_id, CC_id, subframe, UE_id, cqi);
if (idx < 0)
continue; // cannot allocate CCE
UE_template->pre_dci_ul_pdu_idx = idx;
if (rbs[0].length >= nb_rb) { // fits in first contiguous region
UE_template->pre_first_nb_rb_ul = rbs[0].start;
rbs[0].length -= nb_rb;
@@ -531,6 +536,8 @@ int round_robin_ul(module_id_t Mod_id,
"cannot allocate UL retransmission for UE %d (nb_rb %d)\n",
UE_id,
nb_rb);
UE_template->pre_dci_ul_pdu_idx = -1; // do not need CCE
RC.mac[Mod_id]->HI_DCI0_req[CC_id][subframe].hi_dci0_request_body.number_of_dci--;
continue;
}
LOG_D(MAC, "%4d.%d UE %d retx %d RBs at start %d\n",
@@ -640,8 +647,15 @@ int round_robin_ul(module_id_t Mod_id,
while (num_ue_sched < nr[r]) {
while (rb_idx_required[sUE_id] == 0)
sUE_id = next_ue_list_looped(UE_list, sUE_id);
/* TODO: check that CCE allocated is feasible. If it is not, reduce
* nr[r] by one as this would been one opportunity */
const int cqi = UE_info->UE_sched_ctrl[sUE_id].dl_cqi[CC_id];
const int idx = CCE_try_allocate_ulsch(Mod_id, CC_id, subframe, sUE_id, cqi);
if (idx < 0) {
LOG_D(MAC, "cannot allocate CCE for UE %d, skipping\n", sUE_id);
nr[r]--;
sUE_id = next_ue_list_looped(UE_list, sUE_id); // next candidate
continue;
}
UE_info->UE_template[CC_id][sUE_id].pre_dci_ul_pdu_idx = idx;
*cur_UE = sUE_id;
cur_UE = &UE_sched.next[sUE_id];
rb_idx_given[sUE_id] = min(start_idx, rb_idx_required[sUE_id]);
@@ -729,6 +743,7 @@ void ulsch_scheduler_pre_processor(module_id_t Mod_id,
UE_template->pre_allocated_nb_rb_ul = 0;
UE_template->pre_allocated_rb_table_index_ul = -1;
UE_template->pre_first_nb_rb_ul = 0;
UE_template->pre_dci_ul_pdu_idx = -1;
const rnti_t rnti = UE_RNTI(Mod_id, UE_id);
if (rnti == NOT_A_RNTI) {
@@ -775,7 +790,7 @@ void ulsch_scheduler_pre_processor(module_id_t Mod_id,
sched_frameP,
sched_subframeP,
&UE_to_sched,
3, // max_num_ue
4, // max_num_ue
n_contig,
rbs);