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nr_pbchsim modifications for carrier phase rotation procedure

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This commit is contained in:
Raymond Knopp
2020-08-27 05:49:46 +02:00
parent d7bdf4937a
commit 260a9e58a0
3 changed files with 42 additions and 12 deletions
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openair1/PHY/MODULATION/slot_fep_nr.c
+12 -9
View File
@@ -133,8 +133,8 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
#ifdef DEBUG_FEP #ifdef DEBUG_FEP
// if (ue->frame <100) // if (ue->frame <100)
/*LOG_I(PHY,*/printf("slot_fep: frame %d: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, slot_offset %u, sample_offset %d,rx_offset %u, frame_length_samples %u\n", /*LOG_I(PHY,*/printf("slot_fep: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, slot_offset %u, sample_offset %d,rx_offset %u, frame_length_samples %u\n",
ue->proc.proc_rxtx[(Ns)&1].frame_rx, Ns, symbol, nb_prefix_samples, nb_prefix_samples0, slot_offset, sample_offset, rx_offset, frame_length_samples); Ns, symbol, nb_prefix_samples, nb_prefix_samples0, slot_offset, sample_offset, rx_offset, frame_length_samples);
#endif #endif
abs_symbol = Ns * frame_parms->symbols_per_slot + symbol; abs_symbol = Ns * frame_parms->symbols_per_slot + symbol;
@@ -200,7 +200,7 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
#ifdef DEBUG_FEP #ifdef DEBUG_FEP
// if (ue->frame <100) // if (ue->frame <100)
printf("slot_fep: frame %d: symbol %d rx_offset %u\n", ue->proc.proc_rxtx[(Ns)&1].frame_rx, symbol, rx_offset); printf("slot_fep: symbol %d rx_offset %u\n", symbol, rx_offset);
#endif #endif
int symb_offset = (Ns%frame_parms->slots_per_subframe)*frame_parms->symbols_per_slot; int symb_offset = (Ns%frame_parms->slots_per_subframe)*frame_parms->symbols_per_slot;
@@ -318,8 +318,8 @@ int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
#ifdef DEBUG_FEP #ifdef DEBUG_FEP
// if (ue->frame <100) // if (ue->frame <100)
/*LOG_I(PHY,*/printf("slot_fep: frame %d: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, slot_offset %u, sample_offset %d,rx_offset %u, frame_length_samples %u\n", /*LOG_I(PHY,*/printf("slot_fep: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, slot_offset %u, sample_offset %d,rx_offset %u, frame_length_samples %u\n",
ue->proc.proc_rxtx[(Ns)&1].frame_rx, Ns, symbol, nb_prefix_samples, nb_prefix_samples0, slot_offset, sample_offset, rx_offset, frame_length_samples); Ns, symbol, nb_prefix_samples, nb_prefix_samples0, slot_offset, sample_offset, rx_offset, frame_length_samples);
#endif #endif
abs_symbol = Ns * frame_parms->symbols_per_slot + symbol; abs_symbol = Ns * frame_parms->symbols_per_slot + symbol;
@@ -383,13 +383,16 @@ int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
} }
#ifdef DEBUG_FEP
// if (ue->frame <100)
printf("slot_fep: frame %d: symbol %d rx_offset %u\n", ue->proc.proc_rxtx[(Ns)&1].frame_rx, symbol, rx_offset);
#endif
int symb_offset = (Ns%frame_parms->slots_per_subframe)*frame_parms->symbols_per_slot; int symb_offset = (Ns%frame_parms->slots_per_subframe)*frame_parms->symbols_per_slot;
int32_t rot2 = ((uint32_t*)frame_parms->symbol_rotation)[symbol+symb_offset]; int32_t rot2 = ((uint32_t*)frame_parms->symbol_rotation)[symbol+symb_offset];
((int16_t*)&rot2)[1]=-((int16_t*)&rot2)[1]; ((int16_t*)&rot2)[1]=-((int16_t*)&rot2)[1];
#ifdef DEBUG_FEP
// if (ue->frame <100)
printf("slot_fep: slot %d, symbol %d rx_offset %u, rotation symbol %d %d.%d\n", Ns,symbol, rx_offset,
symbol+symb_offset,((int16_t*)&rot2)[0],((int16_t*)&rot2)[1]);
#endif
rotate_cpx_vector((int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol], rotate_cpx_vector((int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],
(int16_t*)&rot2, (int16_t*)&rot2,
(int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol], (int16_t *)&common_vars->common_vars_rx_data_per_thread[ue->current_thread_id[Ns]].rxdataF[aa][frame_parms->ofdm_symbol_size*symbol],
openair1/SCHED_NR/phy_procedures_nr_gNB.c
-1
View File
@@ -293,7 +293,6 @@ void nr_ulsch_procedures(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int ULSCH
G); G);
stop_meas(&gNB->ulsch_decoding_stats); stop_meas(&gNB->ulsch_decoding_stats);
if (ret > gNB->ulsch[ULSCH_id][0]->max_ldpc_iterations){ if (ret > gNB->ulsch[ULSCH_id][0]->max_ldpc_iterations){
LOG_D(PHY, "ULSCH %d in error\n",ULSCH_id); LOG_D(PHY, "ULSCH %d in error\n",ULSCH_id);
nr_fill_indication(gNB,frame_rx, slot_rx, ULSCH_id, harq_pid, 1); nr_fill_indication(gNB,frame_rx, slot_rx, ULSCH_id, harq_pid, 1);
openair1/SIMULATION/NR_PHY/pbchsim.c
+30 -2
View File
@@ -108,6 +108,9 @@ void nr_phy_config_request_sim_pbchsim(PHY_VARS_gNB *gNB,
gNB_config->carrier_config.dl_bandwidth.value = config_bandwidth(mu, N_RB_DL, fp->nr_band); gNB_config->carrier_config.dl_bandwidth.value = config_bandwidth(mu, N_RB_DL, fp->nr_band);
nr_init_frame_parms(gNB_config, fp); nr_init_frame_parms(gNB_config, fp);
init_symbol_rotation(fp,fp->dl_CarrierFreq);
gNB->configured = 1; gNB->configured = 1;
LOG_I(PHY,"gNB configured\n"); LOG_I(PHY,"gNB configured\n");
} }
@@ -552,10 +555,35 @@ int main(int argc, char **argv)
frame_parms->nb_prefix_samples, frame_parms->nb_prefix_samples,
CYCLIC_PREFIX); CYCLIC_PREFIX);
} else { } else {
nr_normal_prefix_mod(gNB->common_vars.txdataF[aa], /* nr_normal_prefix_mod(gNB->common_vars.txdataF[aa],
&txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)], &txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)],
14, 14,
frame_parms); frame_parms);*/
PHY_ofdm_mod(gNB->common_vars.txdataF[aa],
(int*)&txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)],
frame_parms->ofdm_symbol_size,
1,
frame_parms->nb_prefix_samples0,
CYCLIC_PREFIX);
apply_nr_rotation(frame_parms,
(int16_t*)&txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)],
slot,
0,
1,
frame_parms->ofdm_symbol_size+frame_parms->nb_prefix_samples0);
PHY_ofdm_mod(&gNB->common_vars.txdataF[aa][frame_parms->ofdm_symbol_size],
(int*)&txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)+frame_parms->nb_prefix_samples0+frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size,
13,
frame_parms->nb_prefix_samples,
CYCLIC_PREFIX);
apply_nr_rotation(frame_parms,
(int16_t*)&txdata[aa][frame_parms->get_samples_slot_timestamp(slot,frame_parms,0)+frame_parms->nb_prefix_samples0+frame_parms->ofdm_symbol_size],
slot,
1,
13,
frame_parms->ofdm_symbol_size+frame_parms->nb_prefix_samples);
} }
} }
} }