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

Check ULSCH transport block CRC

Browse Source
This commit is contained in:
rmagueta
2023-09-07 08:31:22 +01:00
committed by luis_pereira87
parent 4c9706a950
commit bc295b3ba5
2 changed files with 29 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/NR_TRANSPORT/nr_ulsch_decoding.c
+15
View File
@@ -463,7 +463,22 @@ int nr_ulsch_decoding(PHY_VARS_gNB *phy_vars_gNB,
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_ULSCH_DECODING, 0);
bool crc_valid = false;
if (harq_process->processedSegments == harq_process->C) {
// When the number of code blocks is 1 (C = 1) and ulsch_harq->processedSegments = 1, we can assume a good TB because of the
// CRC check made by the LDPC for early termination, so, no need to perform CRC check twice for a single code block
crc_valid = true;
if (harq_process->C > 1) {
// Check ULSCH transport block CRC
crc_type = CRC16;
if (A > 3824) {
crc_type = CRC24_A;
}
crc_valid = check_crc(harq_process->b, harq_process->B, crc_type);
}
}
if (crc_valid) {
LOG_D(PHY, "[gNB %d] ULSCH: Setting ACK for slot %d TBS %d\n", phy_vars_gNB->Mod_id, ulsch->slot, harq_process->TBS);
ulsch->active = false;
harq_process->round = 0;
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+14 -2
View File
@@ -261,8 +261,20 @@ static void nr_postDecode(PHY_VARS_gNB *gNB, notifiedFIFO_elt_t *req)
//int dumpsig=0;
// if all segments are done
if (rdata->nbSegments == ulsch_harq->processedSegments) {
if (!check_abort(&ulsch_harq->abort_decode) && !gNB->pusch_vars[rdata->ulsch_id].DTX) {
if (ulsch_harq->processedSegments == ulsch_harq->C) {
// When the number of code blocks is 1 (C = 1) and ulsch_harq->processedSegments = 1, we can assume a good TB because of the
// CRC check made by the LDPC for early termination, so, no need to perform CRC check twice for a single code block
bool crc_valid = true;
if (ulsch_harq->C > 1) {
// Check ULSCH transport block CRC
int crc_type = CRC16;
if (rdata->A > 3824) {
crc_type = CRC24_A;
}
crc_valid = check_crc(ulsch_harq->b, ulsch_harq->B, crc_type);
}
if (crc_valid && !check_abort(&ulsch_harq->abort_decode) && !gNB->pusch_vars[rdata->ulsch_id].DTX) {
LOG_D(PHY,
"[gNB %d] ULSCH: Setting ACK for SFN/SF %d.%d (rnti %x, pid %d, ndi %d, status %d, round %d, TBS %d, Max interation "
"(all seg) %d)\n",