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This commit is contained in:
Robert Schmidt
2024-04-13 08:54:15 +02:00
parent 94b23d1eb0
commit 9a2e080f77
29 changed files with 1095 additions and 1149 deletions
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openair1/PHY/MODULATION/modulation_UE.h
+5 -5
View File
@@ -55,11 +55,11 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
c16_t rxdataF[][frame_parms->samples_per_slot_wCP],
uint32_t linktype);
int sl_nr_slot_fep(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
unsigned char symbol,
unsigned char Ns,
uint32_t sample_offset,
c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP]);
UE_nr_rxtx_proc_t *proc,
unsigned char symbol,
unsigned char Ns,
uint32_t sample_offset,
c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP]);
int nr_slot_fep_init_sync(PHY_VARS_NR_UE *ue,
const UE_nr_rxtx_proc_t *proc,
openair1/PHY/MODULATION/slot_fep_nr.c
+49 -53
View File
@@ -35,33 +35,34 @@
#endif*/
int sl_nr_slot_fep(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
unsigned char symbol,
unsigned char Ns,
uint32_t sample_offset,
c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP])
UE_nr_rxtx_proc_t *proc,
unsigned char symbol,
unsigned char Ns,
uint32_t sample_offset,
c16_t rxdataF[][ue->SL_UE_PHY_PARAMS.sl_frame_params.samples_per_slot_wCP])
{
NR_DL_FRAME_PARMS *frame_params = &ue->SL_UE_PHY_PARAMS.sl_frame_params;
NR_UE_COMMON *common_vars = &ue->common_vars;
NR_UE_COMMON *common_vars = &ue->common_vars;
AssertFatal(symbol < frame_params->symbols_per_slot, "slot_fep: symbol must be between 0 and %d\n", frame_params->symbols_per_slot-1);
AssertFatal(Ns < frame_params->slots_per_frame, "slot_fep: Ns must be between 0 and %d\n", frame_params->slots_per_frame-1);
AssertFatal(symbol < frame_params->symbols_per_slot,
"slot_fep: symbol must be between 0 and %d\n",
frame_params->symbols_per_slot - 1);
AssertFatal(Ns < frame_params->slots_per_frame, "slot_fep: Ns must be between 0 and %d\n", frame_params->slots_per_frame - 1);
unsigned int nb_prefix_samples = frame_params->nb_prefix_samples;
unsigned int nb_prefix_samples = frame_params->nb_prefix_samples;
unsigned int nb_prefix_samples0 = frame_params->nb_prefix_samples0;
dft_size_idx_t dftsize = get_dft(frame_params->ofdm_symbol_size);
// This is for misalignment issues
int32_t tmp_dft_in[8192] __attribute__ ((aligned (32)));
int32_t tmp_dft_in[8192] __attribute__((aligned(32)));
unsigned int rx_offset = frame_params->get_samples_slot_timestamp(Ns,frame_params,0);
unsigned int rx_offset = frame_params->get_samples_slot_timestamp(Ns, frame_params, 0);
unsigned int abs_symbol = Ns * frame_params->symbols_per_slot + symbol;
rx_offset += sample_offset;
for (int idx_symb = Ns*frame_params->symbols_per_slot; idx_symb <= abs_symbol; idx_symb++)
rx_offset += (idx_symb%(0x7<<frame_params->numerology_index)) ? nb_prefix_samples : nb_prefix_samples0;
for (int idx_symb = Ns * frame_params->symbols_per_slot; idx_symb <= abs_symbol; idx_symb++)
rx_offset += (idx_symb % (0x7 << frame_params->numerology_index)) ? nb_prefix_samples : nb_prefix_samples0;
rx_offset += frame_params->ofdm_symbol_size * symbol;
// use OFDM symbol from within 1/8th of the CP to avoid ISI
@@ -69,58 +70,61 @@ int sl_nr_slot_fep(PHY_VARS_NR_UE *ue,
#ifdef SL_DEBUG_SLOT_FEP
// if (ue->frame <100)
LOG_I(PHY, "slot_fep: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, rx_offset %u\n",
Ns, symbol, nb_prefix_samples, nb_prefix_samples0, rx_offset);
LOG_I(PHY,
"slot_fep: slot %d, symbol %d, nb_prefix_samples %u, nb_prefix_samples0 %u, rx_offset %u\n",
Ns,
symbol,
nb_prefix_samples,
nb_prefix_samples0,
rx_offset);
#endif
for (unsigned char aa=0; aa<frame_params->nb_antennas_rx; aa++) {
memset(&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],0,frame_params->ofdm_symbol_size*sizeof(int32_t));
for (unsigned char aa = 0; aa < frame_params->nb_antennas_rx; aa++) {
memset(&rxdataF[aa][frame_params->ofdm_symbol_size * symbol], 0, frame_params->ofdm_symbol_size * sizeof(int32_t));
int16_t *rxdata_ptr = (int16_t *)&common_vars->rxdata[aa][rx_offset];
// if input to dft is not 256-bit aligned
if ((rx_offset & 7) != 0) {
memcpy((void *)&tmp_dft_in[0],
(void *)&common_vars->rxdata[aa][rx_offset],
frame_params->ofdm_symbol_size * sizeof(int32_t));
memcpy((void *)&tmp_dft_in[0], (void *)&common_vars->rxdata[aa][rx_offset], frame_params->ofdm_symbol_size * sizeof(int32_t));
rxdata_ptr = (int16_t *)tmp_dft_in;
}
dft(dftsize,
rxdata_ptr,
(int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
1);
dft(dftsize, rxdata_ptr, (int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size * symbol], 1);
int symb_offset = (Ns%frame_params->slots_per_subframe)*frame_params->symbols_per_slot;
int32_t rot2 = ((uint32_t*)frame_params->symbol_rotation[1])[symbol+symb_offset];
((int16_t*)&rot2)[1]=-((int16_t*)&rot2)[1];
int symb_offset = (Ns % frame_params->slots_per_subframe) * frame_params->symbols_per_slot;
int32_t rot2 = ((uint32_t *)frame_params->symbol_rotation[1])[symbol + symb_offset];
((int16_t *)&rot2)[1] = -((int16_t *)&rot2)[1];
#ifdef SL_DEBUG_SLOT_FEP
// if (ue->frame <100)
LOG_I(PHY, "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]);
LOG_I(PHY,
"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((c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
(c16_t *)&rot2,
(c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
frame_params->ofdm_symbol_size,
15);
rotate_cpx_vector((c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size * symbol],
(c16_t *)&rot2,
(c16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size * symbol],
frame_params->ofdm_symbol_size,
15);
int16_t *shift_rot = (int16_t *)frame_params->timeshift_symbol_rotation;
multadd_cpx_vector((int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
shift_rot,
(int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size*symbol],
1,
frame_params->ofdm_symbol_size,
15);
multadd_cpx_vector((int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size * symbol],
shift_rot,
(int16_t *)&rxdataF[aa][frame_params->ofdm_symbol_size * symbol],
1,
frame_params->ofdm_symbol_size,
15);
}
LOG_D(PHY, "SIDELINK RX: Slot FEP: done for symbol:%d\n", symbol);
return 0;
@@ -133,7 +137,6 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
c16_t rxdataF[][frame_parms->samples_per_slot_wCP],
uint32_t linktype)
{
NR_UE_COMMON *common_vars = &ue->common_vars;
int Ns = proc->nr_slot_rx;
@@ -190,14 +193,7 @@ int nr_slot_fep(PHY_VARS_NR_UE *ue,
stop_meas(&ue->rx_dft_stats);
apply_nr_rotation_RX(frame_parms,
rxdataF[aa],
frame_parms->symbol_rotation[linktype],
Ns,
frame_parms->N_RB_DL,
0,
symbol,
1);
apply_nr_rotation_RX(frame_parms, rxdataF[aa], frame_parms->symbol_rotation[linktype], Ns, frame_parms->N_RB_DL, 0, symbol, 1);
}
#ifdef DEBUG_FEP