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NR_UE: fix ulsch precoding for RB crossing DC (odd number of RB)

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This commit is contained in:
Thomas Schlichter
2022-08-25 12:10:48 +02:00
parent e28fccc7fb
commit 421eb65a9a
1 changed files with 28 additions and 9 deletions
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openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
+28 -9
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@@ -495,15 +495,34 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
uint8_t pmi=pusch_pdu->Tpmi;
if (pmi == 0) {//unitary Precoding
if(ap< pusch_pdu->nrOfLayers)
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + k],
(void*)&tx_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 + 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<pusch_pdu->nrOfLayers)
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + k],
(void*)&tx_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 + 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<pusch_pdu->nrOfLayers) {
memcpy((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size + k],
(void*)&tx_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],
(void*)&tx_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 + k],
0,
neg_length*sizeof(int32_t));
memset((void*)&txdataF[ap][l*frame_parms->ofdm_symbol_size],
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;