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Fix: Reset HARQ feedback slot

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If we schedule in a second slot, this ensures that the correct HARQ
process' NDI is toggled.
This commit is contained in:
Robert Schmidt
2020-11-20 09:52:42 +01:00
parent 8f03a80a36
commit 3ff26c8f84
1 changed files with 10 additions and 4 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+10 -4
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@@ -361,6 +361,7 @@ void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES; harq_idx++) { for (int harq_idx = harq_idx_s; harq_idx < NR_MAX_NB_HARQ_PROCESSES; harq_idx++) {
// if the gNB received ack with a good confidence // if the gNB received ack with a good confidence
if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) { if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
sched_ctrl->harq_processes[harq_idx].feedback_slot = -1;
if ((uci_01->harq->harq_list[harq_bit].harq_value == 1) && if ((uci_01->harq->harq_list[harq_bit].harq_value == 1) &&
(uci_01->harq->harq_confidence_level == 0)) { (uci_01->harq->harq_confidence_level == 0)) {
// toggle NDI and reset round // toggle NDI and reset round
@@ -380,8 +381,10 @@ void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
break; break;
} }
// if feedback slot processing is aborted // if feedback slot processing is aborted
else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) && else if (sched_ctrl->harq_processes[harq_idx].feedback_slot != -1
(sched_ctrl->harq_processes[harq_idx].is_waiting)) { && (UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot
&& sched_ctrl->harq_processes[harq_idx].is_waiting) {
sched_ctrl->harq_processes[harq_idx].feedback_slot = -1;
sched_ctrl->harq_processes[harq_idx].round++; sched_ctrl->harq_processes[harq_idx].round++;
if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) { if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
sched_ctrl->harq_processes[harq_idx].ndi ^= 1; sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
@@ -405,6 +408,7 @@ void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
// if the gNB received ack with a good confidence or if the max harq rounds was reached // if the gNB received ack with a good confidence or if the max harq rounds was reached
if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) { if ((UL_info->slot-1) == sched_ctrl->harq_processes[harq_idx].feedback_slot) {
// TODO add some confidence level for when there is no CRC // TODO add some confidence level for when there is no CRC
sched_ctrl->harq_processes[harq_idx].feedback_slot = -1;
if ((uci_234->harq.harq_crc != 1) && acknack) { if ((uci_234->harq.harq_crc != 1) && acknack) {
// toggle NDI and reset round // toggle NDI and reset round
sched_ctrl->harq_processes[harq_idx].ndi ^= 1; sched_ctrl->harq_processes[harq_idx].ndi ^= 1;
@@ -423,8 +427,10 @@ void nr_rx_acknack(nfapi_nr_uci_pusch_pdu_t *uci_pusch,
break; break;
} }
// if feedback slot processing is aborted // if feedback slot processing is aborted
else if (((UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot) && else if (sched_ctrl->harq_processes[harq_idx].feedback_slot != -1
(sched_ctrl->harq_processes[harq_idx].is_waiting)) { && (UL_info->slot-1) > sched_ctrl->harq_processes[harq_idx].feedback_slot
&& sched_ctrl->harq_processes[harq_idx].is_waiting) {
sched_ctrl->harq_processes[harq_idx].feedback_slot = -1;
sched_ctrl->harq_processes[harq_idx].round++; sched_ctrl->harq_processes[harq_idx].round++;
if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) { if (sched_ctrl->harq_processes[harq_idx].round == max_harq_rounds) {
sched_ctrl->harq_processes[harq_idx].ndi ^= 1; sched_ctrl->harq_processes[harq_idx].ndi ^= 1;