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bugfix in dci reception, CRC is 24 bits but uint16 was used

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This commit is contained in:
francescomani
2024-04-30 12:36:15 +02:00
parent 90f82d19da
commit 114fb5dbca
2 changed files with 21 additions and 8 deletions
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openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c
+20 -7
View File
@@ -621,7 +621,7 @@ uint32_t polar_decoder_int16(int16_t *input,
uint8_t ones_flag,
int8_t messageType,
uint16_t messageLength,
uint8_t aggregation_level )
uint8_t aggregation_level)
{
t_nrPolar_params *polarParams=nr_polar_params(messageType, messageLength, aggregation_level, true);
@@ -638,7 +638,13 @@ uint32_t polar_decoder_int16(int16_t *input,
#endif
int16_t d_tilde[polarParams->N];
nr_polar_rate_matching_int16(input, d_tilde, polarParams->rate_matching_pattern, polarParams->K, polarParams->N, polarParams->encoderLength, polarParams->i_bil);
nr_polar_rate_matching_int16(input,
d_tilde,
polarParams->rate_matching_pattern,
polarParams->K,
polarParams->N,
polarParams->encoderLength,
polarParams->i_bil);
for (int i=0; i<polarParams->N; i++) {
if (d_tilde[i]<-128) d_tilde[i]=-128;
@@ -792,13 +798,20 @@ uint32_t polar_decoder_int16(int16_t *input,
printf("\n\n");
#endif
#if 0
printf("A %llx B %llx|%llx Cprime %llx|%llx (crc %x,rxcrc %llx %d)\n",
#ifdef POLAR_CODING_DEBUG
printf("A %lx B %lx|%lx Cprime %lx|%lx (crc %x,rxcrc %lx, XOR %lx, bits%d)\n",
Ar,
B[1],B[0],Cprime[1],Cprime[0],crc,
rxcrc,polarParams->payloadBits);
B[1],
B[0],
Cprime[1],
Cprime[0],
crc,
rxcrc,
crc^rxcrc,
polarParams->payloadBits);
#endif
out[0]=Ar;
out[0] = Ar;
polarReturn crc^rxcrc;
}
openair1/PHY/NR_UE_TRANSPORT/dci_nr.c
+1 -1
View File
@@ -728,7 +728,7 @@ void nr_dci_decoding_procedure(PHY_VARS_NR_UE *ue,
rel15->coreset.pdcch_dmrs_scrambling_id,
tmp_e);
uint16_t crc = polar_decoder_int16(tmp_e, dci_estimation, 1, NR_POLAR_DCI_MESSAGE_TYPE, dci_length, L);
const uint32_t crc = polar_decoder_int16(tmp_e, dci_estimation, 1, NR_POLAR_DCI_MESSAGE_TYPE, dci_length, L);
rnti_t n_rnti = rel15->rnti;
if (crc == n_rnti) {