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Updated ofdm fep in gNB

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This commit is contained in:
Sakthivel Velumani
2020-02-11 10:56:15 +01:00
parent 5c0a817f23
commit 9a7daded2e
1 changed files with 54 additions and 23 deletions
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openair1/SCHED_NR/nr_ru_procedures.c
+54 -23
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@@ -69,43 +69,74 @@ void nr_feptx0(RU_t *ru,int tti_tx,int first_symbol, int num_symbols, int aa) {
slot_offset = fp->get_samples_slot_timestamp(slot,fp,0);
slot_offsetF = first_symbol*fp->ofdm_symbol_size;
int abs_first_symbol = slot*fp->symbols_per_slot;
if (first_symbol>0) slot_offset += (fp->ofdm_symbol_size*first_symbol) + (fp->nb_prefix_samples0) + (fp->nb_prefix_samples*(first_symbol-1));
for (uint16_t idx_sym=abs_first_symbol; idx_sym<abs_first_symbol+first_symbol; idx_sym++)
slot_offset += (idx_sym%(0x7<<fp->numerology_index)) ? fp->nb_prefix_samples0 : fp->nb_prefix_samples;
slot_offset += fp->ofdm_symbol_size*first_symbol;
LOG_D(PHY,"SFN/SF:RU:TX:%d/%d Generating slot %d (first_symbol %d num_symbols %d)\n",ru->proc.frame_tx, ru->proc.tti_tx,slot,first_symbol,num_symbols);
if (fp->Ncp == 1) {
if (fp->Ncp == 1)
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
num_symbols,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
}
else {
if (first_symbol==0) {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
1,
fp->nb_prefix_samples0,
CYCLIC_PREFIX);
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF+fp->ofdm_symbol_size],
(int*)&ru->common.txdata[aa][slot_offset+fp->nb_prefix_samples0+fp->ofdm_symbol_size],
fp->ofdm_symbol_size,
num_symbols-1,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
if (fp->numerology_index != 0) {
if (slot%(fp->slots_per_subframe/2)) {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
num_symbols,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
}
else {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
1,
fp->nb_prefix_samples0,
CYCLIC_PREFIX);
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF+fp->ofdm_symbol_size],
(int*)&ru->common.txdata[aa][slot_offset+fp->nb_prefix_samples0+fp->ofdm_symbol_size],
fp->ofdm_symbol_size,
num_symbols-1,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
}
}
else {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
num_symbols,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
for (uint16_t idx_sym=abs_first_symbol; idx_sym<abs_first_symbol+num_symbols; idx_sym++) {
if (idx_sym%0x7) {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
1,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
slot_offset += fp->nb_prefix_samples+fp->ofdm_symbol_size;
}
else {
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][slot_offsetF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size,
1,
fp->nb_prefix_samples0,
CYCLIC_PREFIX);
slot_offset += fp->nb_prefix_samples0+fp->ofdm_symbol_size;
}
}
}
}
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPTX_OFDM+(first_symbol!=0?1:0), 0);
}