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gNB: fix nr_generate_pdsch() for odd number of PDSCH RBs

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This commit is contained in:
Thomas Schlichter
2022-02-25 09:35:44 +01:00
parent 4d90aad48f
commit c7ca405199
1 changed files with 28 additions and 8 deletions
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openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+28 -8
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@@ -457,14 +457,34 @@ void nr_generate_pdsch(processingData_L1tx_t *msgTx,
pmi = 0;//no precoding
if (pmi == 0) {//unitary Precoding
if(ap<rel15->nrOfLayers)
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
(void*)&txdataF_precoding[ap][2*(l*frame_parms->ofdm_symbol_size + k)],
NR_NB_SC_PER_RB*sizeof(int32_t));
else
memset((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
0,
NR_NB_SC_PER_RB*sizeof(int32_t));
if (k + NR_NB_SC_PER_RB <= frame_parms->ofdm_symbol_size) { // RB does not cross DC
if(ap<rel15->nrOfLayers)
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
(void*)&txdataF_precoding[ap][2*(l*frame_parms->ofdm_symbol_size + k)],
NR_NB_SC_PER_RB*sizeof(int32_t));
else
memset((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
0,
NR_NB_SC_PER_RB*sizeof(int32_t));
} else { // RB does cross DC
int neg_length = frame_parms->ofdm_symbol_size - k;
int pos_length = NR_NB_SC_PER_RB - neg_length;
if (ap<rel15->nrOfLayers) {
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
(void*)&txdataF_precoding[ap][2*(l*frame_parms->ofdm_symbol_size + k)],
neg_length*sizeof(int32_t));
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset],
(void*)&txdataF_precoding[ap][2*(l*frame_parms->ofdm_symbol_size)],
pos_length*sizeof(int32_t));
} else {
memset((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset + k],
0,
neg_length*sizeof(int32_t));
memset((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + txdataF_offset],
0,
pos_length*sizeof(int32_t));
}
}
k += NR_NB_SC_PER_RB;
if (k >= frame_parms->ofdm_symbol_size) {
k -= frame_parms->ofdm_symbol_size;