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Merge remote-tracking branch 'origin/NR_fix_ndi_reset' into integration_2026_w09 (!3945)

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gNB: Reset NDI only after usage in case of disable HARQ

Solves this warnings seen in the UE trace:
NDI indicates re-transmission but computed TBS 3968 doesn't match with what previously stored 3368

Issue happens only if feature disable_harq is enabled. GNB resets the harq
process (including NDI) as PUCCH will not be sent for this harq process, but
before the harq process is used in DCI payload preparation.

Fix is to reset the harq process after harq process in case of no PUCCH.
This commit is contained in:
Jaroslava Fiedlerova
2026-02-23 10:19:53 +01:00
parent 10ac7a2711 e129fd0ede
commit b5634c6615
1 changed files with 7 additions and 3 deletions
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openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c
+7 -3
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@@ -1079,9 +1079,7 @@ void post_process_dlsch(gNB_MAC_INST *nr_mac, post_process_pdsch_t *pdsch, NR_UE
NR_UE_harq_t *harq = &sched_ctrl->harq_processes[current_harq_pid];
NR_sched_pucch_t *pucch = NULL;
DevAssert(!harq->is_waiting);
if (sched_pdsch->pucch_allocation < 0) {
finish_nr_dl_harq(sched_ctrl, current_harq_pid);
} else {
if (sched_pdsch->pucch_allocation >= 0) {
pucch = &sched_ctrl->sched_pucch[sched_pdsch->pucch_allocation];
add_tail_nr_list(&sched_ctrl->feedback_dl_harq, current_harq_pid);
harq->feedback_frame = pucch->frame;
@@ -1414,6 +1412,12 @@ void post_process_dlsch(gNB_MAC_INST *nr_mac, post_process_pdsch_t *pdsch, NR_UE
pdsch->TX_req->Number_of_PDUs++;
pdsch->TX_req->SFN = frame;
pdsch->TX_req->Slot = slot;
// RESET HARQ NDI and ROUND once they are used.
// as HARQ is disabled and there will no PUCCH being received.
if (sched_pdsch->pucch_allocation < 0) {
finish_nr_dl_harq(sched_ctrl, current_harq_pid);
}
}
void nr_schedule_ue_spec(module_id_t module_id,