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Merge remote-tracking branch 'origin/gnb-txdataF-flatbuff' into integration_2026_w11 (!3834)

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Use flat buffer for txdataF in gNB L1

This MR changes txdataF buffer format to hold freq domain data starting from
PRB0 instead of circular buffer that starts from PRB N/2. The motive is to
simplify RE mapping function in L1 and copying data to xran lib.
This commit is contained in:
Jaroslava Fiedlerova
2026-03-12 14:59:07 +01:00
parent 6fa541fe20 044ca835d6
commit 592cb8ac6a
20 changed files with 192 additions and 233 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/INIT/nr_init.c
+1 -1
View File
@@ -185,7 +185,7 @@ void phy_init_nr_gNB(PHY_VARS_gNB *gNB)
for (int i = 0; i < common_vars->num_beams_period; i++) {
common_vars->txdataF[i] = (c16_t**)malloc16_clear(Ptx * sizeof(c16_t*));
for (int j = 0; j < Ptx; j++)
common_vars->txdataF[i][j] = (c16_t*)malloc16_clear(fp->samples_per_frame_wCP * sizeof(c16_t));
common_vars->txdataF[i][j] = (c16_t*)malloc16_clear(fp->samples_per_slot_wCP * sizeof(c16_t));
}
common_vars->debugBuff = (int32_t*)malloc16_clear(fp->samples_per_frame*sizeof(int32_t)*100);
common_vars->debugBuff_sample_offset = 0;
openair1/PHY/INIT/nr_init_ru.c
+3 -2
View File
@@ -97,13 +97,14 @@ void nr_phy_init_RU(RU_t *ru)
ru->common.txdataF = (int32_t **)malloc16(ru->nb_tx*sizeof(int32_t*));
// [hna] samples_per_frame without CP
for(int i = 0; i < ru->nb_tx; ++i)
ru->common.txdataF[i] = (int32_t*)malloc16_clear(fp->samples_per_frame_wCP * sizeof(int32_t));
ru->common.txdataF[i] = (int32_t *)malloc16_clear(fp->samples_per_slot_wCP * sizeof(int32_t));
// allocate IFFT input buffers (TX)
ru->common.txdataF_BF = (int32_t **)malloc16(nb_tx_streams * sizeof(int32_t*));
LOG_D(PHY, "[INIT] common.txdata_BF= %p (%lu bytes)\n", ru->common.txdataF_BF, nb_tx_streams * sizeof(int32_t *));
for (int i = 0; i < nb_tx_streams; i++) {
ru->common.txdataF_BF[i] = (int32_t*)malloc16_clear(fp->samples_per_subframe_wCP * sizeof(int32_t));
ru->common.txdataF_BF[i] =
(int32_t *)malloc16_clear(fp->samples_per_slot_wCP * sizeof(int32_t));
LOG_D(PHY, "txdataF_BF[%d] %p for RU %d\n", i, ru->common.txdataF_BF[i], ru->idx);
}
// allocate FFT output buffers (RX)
openair1/PHY/INIT/nr_init_ue.c
+1 -1
View File
@@ -265,7 +265,7 @@ int init_nr_ue_signal(PHY_VARS_NR_UE *ue, int nb_connected_gNB)
ue->nr_csi_info->csi_rs_generated_signal = malloc16(NR_MAX_CSI_PORTS * sizeof(*ue->nr_csi_info->csi_rs_generated_signal));
for (int i = 0; i < NR_MAX_CSI_PORTS; i++) {
ue->nr_csi_info->csi_rs_generated_signal[i] =
malloc16_clear(fp->samples_per_frame_wCP * sizeof(**ue->nr_csi_info->csi_rs_generated_signal));
malloc16_clear(fp->samples_per_slot_wCP * sizeof(**ue->nr_csi_info->csi_rs_generated_signal));
}
ue->nr_srs_info = malloc16_clear(sizeof(nr_srs_info_t));
openair1/PHY/MODULATION/nr_modulation.h
+9
View File
@@ -105,6 +105,7 @@ void nr_beam_precoding(c16_t **txdataF,
void apply_nr_rotation_TX(const NR_DL_FRAME_PARMS *fp,
c16_t *txdataF,
bool is_flat_buff,
const c16_t *symbol_rotation,
int slot,
int nb_rb,
@@ -161,4 +162,12 @@ void nr_layer_precoder_simd(const int n_layers,
const int sc_offset,
const int re_cnt,
c16_t *txdataF_precoded);
void fft_shift(const c16_t *in,
uint32_t in_symb_sz,
uint16_t num_prb,
c16_t *out,
uint16_t fft_size_out,
uint16_t start_symb,
uint16_t num_symb);
#endif
openair1/PHY/MODULATION/ofdm_mod.c
+34 -14
View File
@@ -288,6 +288,7 @@ void do_OFDM_mod(c16_t **txdataF, c16_t **txdata, uint32_t frame,uint16_t next_s
void apply_nr_rotation_TX(const NR_DL_FRAME_PARMS *fp,
c16_t *txdataF,
bool is_flat_buff,
const c16_t *symbol_rotation,
int slot,
int nb_rb,
@@ -309,20 +310,39 @@ void apply_nr_rotation_TX(const NR_DL_FRAME_PARMS *fp,
this_rotation->r,
this_rotation->i);
if (nb_rb & 1) {
rotate_cpx_vector(this_symbol, this_rotation, this_symbol,
(nb_rb + 1) * 6, 15);
rotate_cpx_vector(this_symbol + fp->first_carrier_offset - 6,
this_rotation,
this_symbol + fp->first_carrier_offset - 6,
(nb_rb + 1) * 6, 15);
} else {
rotate_cpx_vector(this_symbol, this_rotation, this_symbol,
nb_rb * 6, 15);
rotate_cpx_vector(this_symbol + fp->first_carrier_offset,
this_rotation,
this_symbol + fp->first_carrier_offset,
nb_rb * 6, 15);
if (is_flat_buff)
rotate_cpx_vector(this_symbol, this_rotation, this_symbol, nb_rb * NR_NB_SC_PER_RB, 15);
else {
c16_t *this_symbol_neg = this_symbol + fp->first_carrier_offset;
if (nb_rb & 1) {
this_symbol_neg -= 6;
nb_rb += 1;
}
rotate_cpx_vector(this_symbol, this_rotation, this_symbol, nb_rb * 6, 15);
rotate_cpx_vector(this_symbol_neg, this_rotation, this_symbol_neg, nb_rb * 6, 15);
}
}
}
/* Do FFT-shift for symbols in the provided in buffer and writes to out buffer. */
void fft_shift(const c16_t *in,
uint32_t in_symb_sz,
uint16_t num_prb,
c16_t *out,
uint16_t fft_size_out,
uint16_t start_symb,
uint16_t num_symb)
{
const int num_samp_half = num_prb * NR_NB_SC_PER_RB / 2;
const int first_carrier_offset = fft_size_out - num_samp_half;
for (int s = start_symb; s < start_symb + num_symb; s++) {
// Copy negative freq component
uint16_t out_offset = s * fft_size_out + first_carrier_offset;
uint16_t in_offset = s * in_symb_sz;
memcpy(out + out_offset, in + in_offset, num_samp_half * sizeof(int32_t));
// Copy positive freq component
out_offset = s * fft_size_out;
in_offset = s * in_symb_sz + num_samp_half;
memcpy(out + out_offset, in + in_offset, num_samp_half * sizeof(int32_t));
}
}
openair1/PHY/NR_TRANSPORT/nr_dci.c
+2 -10
View File
@@ -53,7 +53,6 @@ static void nr_pdcch_scrambling(uint32_t *in, uint32_t size, uint32_t Nid, uint3
void nr_generate_dci(PHY_VARS_gNB *gNB,
const nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
int txdataF_offset,
NR_DL_FRAME_PARMS *frame_parms,
int slot)
{
@@ -68,7 +67,7 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
if (pdcch_pdu_rel15->CoreSetType == 1)
additional_offset = (pdcch_pdu_rel15->BWPStart + 5) / 6 * 6 - pdcch_pdu_rel15->BWPStart;
int rb_offset = cset_start + additional_offset;
uint16_t cset_start_sc = frame_parms->first_carrier_offset + (pdcch_pdu_rel15->BWPStart + rb_offset) * NR_NB_SC_PER_RB;
uint16_t cset_start_sc = (pdcch_pdu_rel15->BWPStart + rb_offset) * NR_NB_SC_PER_RB;
int idx1 = pdcch_pdu_rel15->StartSymbolIndex+pdcch_pdu_rel15->DurationSymbols;
int idx2 = (((n_rb + rb_offset + pdcch_pdu_rel15->BWPStart) * 3) + 15) & ~15;
c16_t mod_dmrs[idx1][idx2] __attribute__((aligned(16)));
@@ -179,9 +178,7 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
/// Resource mapping
uint16_t amp = gNB->TX_AMP;
c16_t *txdataF = gNB->common_vars.txdataF[beam_nb][0] + txdataF_offset;
if (cset_start_sc >= frame_parms->ofdm_symbol_size)
cset_start_sc -= frame_parms->ofdm_symbol_size;
c16_t *txdataF = gNB->common_vars.txdataF[beam_nb][0];
int num_regs = dci_pdu->AggregationLevel * NR_NB_REG_PER_CCE / pdcch_pdu_rel15->DurationSymbols;
/*Mapping the encoded DCI along with the DMRS */
@@ -190,8 +187,6 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
for (int reg_count = 0; reg_count < num_regs; reg_count++) {
int k = cset_start_sc + reg_list[d][reg_count] * NR_NB_SC_PER_RB;
LOG_D(NR_PHY_DCI, "REG %d k %d\n", reg_list[d][reg_count], k);
if (k >= frame_parms->ofdm_symbol_size)
k -= frame_parms->ofdm_symbol_size;
int l = cset_start_symb + symbol_idx;
@@ -227,9 +222,6 @@ void nr_generate_dci(PHY_VARS_gNB *gNB,
}
k++;
if (k >= frame_parms->ofdm_symbol_size)
k -= frame_parms->ofdm_symbol_size;
} // m
} // reg_count
} // symbol_idx
openair1/PHY/NR_TRANSPORT/nr_dci.h
-1
View File
@@ -28,7 +28,6 @@
void nr_generate_dci(PHY_VARS_gNB *gNB,
const nfapi_nr_dl_tti_pdcch_pdu_rel15_t *pdcch_pdu_rel15,
int txdataF_offset,
NR_DL_FRAME_PARMS *frame_parms,
int slot);
openair1/PHY/NR_TRANSPORT/nr_dlsch.c
+29 -82
View File
@@ -86,8 +86,7 @@ static int do_ptrs_symbol(const nfapi_nr_dl_tti_pdsch_pdu_rel15_t *rel15,
printf("k %d \t txdataF: %d %d\n", k, txF[k].r, txF[k].i);
#endif
}
if (++k >= symbol_sz)
k -= symbol_sz;
k++;
}
return in - tx_layer;
}
@@ -294,7 +293,7 @@ static inline int dmrs_case00(c16_t *output,
else {
output[k] = (c16_t){0};
}
k = (k + 1) % symbol_sz;
k++;
} // RE loop
return in - txl;
}
@@ -355,12 +354,6 @@ static inline int do_onelayer(NR_DL_FRAME_PARMS *frame_parms,
{
c16_t *txl = txl_start;
const uint sz = rel15->rbSize * NR_NB_SC_PER_RB;
int upper_limit = sz;
int remaining_re = 0;
if (start_sc + upper_limit > symbol_sz) {
upper_limit = symbol_sz - start_sc;
remaining_re = sz - upper_limit;
}
/* calculate if current symbol is PTRS symbols */
int ptrs_symbol = 0;
@@ -385,47 +378,39 @@ static inline int do_onelayer(NR_DL_FRAME_PARMS *frame_parms,
if (rel15->numDmrsCdmGrpsNoData == 2) {
switch (dmrs_port & 3) {
case 0:
txl += interleave_with_0_signal_first(output + start_sc, dmrs_start, amp_dmrs, upper_limit);
txl += interleave_with_0_signal_first(output, dmrs_start + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_with_0_signal_first(output + start_sc, dmrs_start, amp_dmrs, sz);
break;
case 1: {
c16_t dmrs[sz / 2];
neg_dmrs(dmrs_start, dmrs, sz / 2);
txl += interleave_with_0_signal_first(output + start_sc, dmrs, amp_dmrs, upper_limit);
txl += interleave_with_0_signal_first(output, dmrs + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_with_0_signal_first(output + start_sc, dmrs, amp_dmrs, sz);
} break;
case 2:
txl += interleave_with_0_start_with_0(output + start_sc, dmrs_start, amp_dmrs, upper_limit);
txl += interleave_with_0_start_with_0(output, dmrs_start + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_with_0_start_with_0(output + start_sc, dmrs_start, amp_dmrs, sz);
break;
case 3: {
c16_t dmrs[sz / 2];
neg_dmrs(dmrs_start, dmrs, sz / 2);
txl += interleave_with_0_start_with_0(output + start_sc, dmrs, amp_dmrs, upper_limit);
txl += interleave_with_0_start_with_0(output, dmrs + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_with_0_start_with_0(output + start_sc, dmrs, amp_dmrs, sz);
} break;
}
} else if (rel15->numDmrsCdmGrpsNoData == 1) {
switch (dmrs_port & 3) {
case 0:
txl += interleave_signals(output + start_sc, txl, amp, dmrs_start, amp_dmrs, upper_limit);
txl += interleave_signals(output, txl, amp, dmrs_start + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_signals(output + start_sc, txl, amp, dmrs_start, amp_dmrs, sz);
break;
case 1: {
c16_t dmrs[sz / 2];
neg_dmrs(dmrs_start, dmrs, sz / 2);
txl += interleave_signals(output + start_sc, txl, amp, dmrs, amp_dmrs, upper_limit);
txl += interleave_signals(output, txl, amp, dmrs + upper_limit / 2, amp_dmrs, remaining_re);
txl += interleave_signals(output + start_sc, txl, amp, dmrs, amp_dmrs, sz);
} break;
case 2:
txl += interleave_signals(output + start_sc, dmrs_start, amp_dmrs, txl, amp, upper_limit);
txl += interleave_signals(output, dmrs_start + upper_limit / 2, amp_dmrs, txl, amp, remaining_re);
txl += interleave_signals(output + start_sc, dmrs_start, amp_dmrs, txl, amp, sz);
break;
case 3: {
c16_t dmrs[sz / 2];
neg_dmrs(dmrs_start, dmrs, sz / 2);
txl += interleave_signals(output + start_sc, dmrs, amp_dmrs, txl, amp, upper_limit);
txl += interleave_signals(output, dmrs + upper_limit / 2, amp_dmrs, txl, amp, remaining_re);
txl += interleave_signals(output + start_sc, dmrs, amp_dmrs, txl, amp, sz);
} break;
}
} else
@@ -445,8 +430,7 @@ static inline int do_onelayer(NR_DL_FRAME_PARMS *frame_parms,
rel15->numDmrsCdmGrpsNoData);
} // generic DMRS case
} else { // no PTRS or DMRS in this symbol
txl += no_ptrs_dmrs_case(output + start_sc, txl, amp, upper_limit);
txl += no_ptrs_dmrs_case(output, txl, amp, remaining_re);
txl += no_ptrs_dmrs_case(output + start_sc, txl, amp, sz);
} // no DMRS/PTRS in symbol
return txl - txl_start;
}
@@ -477,30 +461,13 @@ static inline void do_txdataF(c16_t **txdataF,
const int rb_step = rb_step0==2 && pmi3==pmi && pmi4==pmi ? 4 : rb_step0;
const int re_cnt = NR_NB_SC_PER_RB * rb_step;
if (pmi == 0) { // unitary Precoding
if (subCarrier + re_cnt <= symbol_sz) { // RB does not cross DC
if (ant < rel15->nrOfLayers)
memcpy(&txdataF[ant][txdataF_offset_per_symbol + subCarrier],
&txdataF_precoding[ant][subCarrier],
re_cnt * sizeof(**txdataF));
else
memset(&txdataF[ant][txdataF_offset_per_symbol + subCarrier], 0, re_cnt * sizeof(**txdataF));
} else { // RB does cross DC
const int neg_length = symbol_sz - subCarrier;
const int pos_length = re_cnt - neg_length;
if (ant < rel15->nrOfLayers) {
memcpy(&txdataF[ant][txdataF_offset_per_symbol + subCarrier],
&txdataF_precoding[ant][subCarrier],
neg_length * sizeof(**txdataF));
memcpy(&txdataF[ant][txdataF_offset_per_symbol], &txdataF_precoding[ant], pos_length * sizeof(**txdataF));
} else {
memset(&txdataF[ant][txdataF_offset_per_symbol + subCarrier], 0, neg_length * sizeof(**txdataF));
memset(&txdataF[ant][txdataF_offset_per_symbol], 0, pos_length * sizeof(**txdataF));
}
}
if (ant < rel15->nrOfLayers)
memcpy(&txdataF[ant][txdataF_offset_per_symbol + subCarrier],
&txdataF_precoding[ant][subCarrier],
re_cnt * sizeof(**txdataF));
else
memset(&txdataF[ant][txdataF_offset_per_symbol + subCarrier], 0, re_cnt * sizeof(**txdataF));
subCarrier += re_cnt;
if (subCarrier >= symbol_sz) {
subCarrier -= symbol_sz;
}
} else { // non-unitary Precoding
AssertFatal(frame_parms->nb_antennas_tx > 1, "No precoding can be done with a single antenna port\n");
// get the precoding matrix weights:
@@ -514,38 +481,21 @@ static inline void do_txdataF(c16_t **txdataF,
"Number of layers %d doesn't match to the one in precoding matrix %d\n",
rel15->nrOfLayers,
pmi_pdu->numLayers);
if ((subCarrier + re_cnt) < symbol_sz) { // within ofdm_symbol_size, use SIMDe
nr_layer_precoder_simd(rel15->nrOfLayers,
symbol_sz,
txdataF_precoding,
ant,
pmi_pdu,
subCarrier,
re_cnt,
&txdataF[ant][txdataF_offset_per_symbol]);
subCarrier += re_cnt;
} else { // crossing ofdm_symbol_size, use simple arithmetic operations
for (int i = 0; i < re_cnt; i++) {
txdataF[ant][txdataF_offset_per_symbol + subCarrier] =
nr_layer_precoder_cm(rel15->nrOfLayers, symbol_sz, txdataF_precoding, ant, pmi_pdu, subCarrier);
#ifdef DEBUG_DLSCH_MAPPING
printf("antenna %d\t l %d \t subCarrier %d \t txdataF: %d %d\n",
ant,
l_symbol,
subCarrier,
txdataF[ant][l_symbol * symbol_sz + subCarrier + txdataF_offset].r,
txdataF[ant][l_symbol * symbol_sz + subCarrier + txdataF_offset].i);
#endif
if (++subCarrier >= symbol_sz) {
subCarrier -= symbol_sz;
}
}
} // else{ // crossing ofdm_symbol_size, use simple arithmetic operations
nr_layer_precoder_simd(rel15->nrOfLayers,
symbol_sz,
txdataF_precoding,
ant,
pmi_pdu,
subCarrier,
re_cnt,
&txdataF[ant][txdataF_offset_per_symbol]);
subCarrier += re_cnt;
} // else { // non-unitary Precoding
rb += rb_step;
} // RB loop: while(rb < rel15->rbSize)
}
static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSCH_t *dlsch, int slot)
{
const int16_t amp = gNB->TX_AMP;
@@ -641,11 +591,8 @@ static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSC
start_meas(&gNB->dlsch_pdsch_generation_stats);
/// Resource mapping
// Non interleaved VRB to PRB mapping
uint16_t start_sc = frame_parms->first_carrier_offset + (rel15->rbStart + rel15->BWPStart) * NR_NB_SC_PER_RB;
if (start_sc >= symbol_sz)
start_sc -= symbol_sz;
uint16_t start_sc = (rel15->rbStart + rel15->BWPStart) * NR_NB_SC_PER_RB;
const uint32_t txdataF_offset = slot * frame_parms->samples_per_slot_wCP;
#ifdef DEBUG_DLSCH_MAPPING
printf("PDSCH resource mapping started (start SC %d\tstart symbol %d\tN_PRB %d\tnb_re %d,nb_layers %d)\n",
start_sc,
@@ -756,7 +703,7 @@ static int do_one_dlsch(unsigned char *input_ptr, PHY_VARS_gNB *gNB, NR_gNB_DLSC
start_meas(&gNB->dlsch_precoding_stats);
for (int ant = 0; ant < frame_parms->nb_antennas_tx; ant++) {
const size_t txdataF_offset_per_symbol = l_symbol * symbol_sz + txdataF_offset;
const size_t txdataF_offset_per_symbol = l_symbol * symbol_sz;
do_txdataF(txdataF, symbol_sz, txdataF_precoding, gNB, rel15, ant, start_sc, txdataF_offset_per_symbol);
}
stop_meas(&gNB->dlsch_precoding_stats);
openair1/PHY/NR_TRANSPORT/nr_pbch.c
+6 -31
View File
@@ -71,7 +71,7 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
/// Resource mapping
// PBCH DMRS are mapped within the SSB block on every fourth subcarrier starting from nushift of symbols 1, 2, 3
///symbol 1 [0+nushift:4:236+nushift] -- 60 mod symbols
k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier + nushift;
k = frame_parms->ssb_start_subcarrier + nushift;
l = ssb_start_symbol + 1;
for (int m = 0; m < 60; m++) {
@@ -80,13 +80,10 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#endif
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_dmrs[m], amp, 15);
k+=4;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
///symbol 2 [0+u:4:44+nushift ; 192+nu:4:236+nushift] -- 24 mod symbols
k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier + nushift;
k = frame_parms->ssb_start_subcarrier + nushift;
l++;
for (int m = 60; m < 84; m++) {
@@ -100,13 +97,10 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
((int16_t *)txdataF)[((l*frame_parms->ofdm_symbol_size + k)<<1)+1]);
#endif
k+=(m==71)?148:4; // Jump from 44+nu to 192+nu
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
///symbol 3 [0+nushift:4:236+nushift] -- 60 mod symbols
k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier + nushift;
k = frame_parms->ssb_start_subcarrier + nushift;
l++;
for (int m = 84; m < NR_PBCH_DMRS_LENGTH; m++) {
@@ -115,9 +109,6 @@ void nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#endif
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_dmrs[m], amp, 15);
k+=4;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
#ifdef DEBUG_PBCH_DMRS
@@ -334,7 +325,7 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
nushift = config->cell_config.phy_cell_id.value &3;
// PBCH modulated symbols are mapped within the SSB block on symbols 1, 2, 3 excluding the subcarriers used for the PBCH DMRS
///symbol 1 [0:239] -- 180 mod symbols
int k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier;
int k = frame_parms->ssb_start_subcarrier;
int l = ssb_start_symbol + 1;
int m = 0;
int16_t amp = gNB->TX_AMP;
@@ -351,13 +342,10 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
k++;
m++;
}
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
///symbol 2 [0:47 ; 192:239] -- 72 mod symbols
k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier;
k = frame_parms->ssb_start_subcarrier;
l++;
m=180;
@@ -373,16 +361,10 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
k++;
m++;
}
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
k += 144;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
m=216;
for (int ssb_sc_idx = 192; ssb_sc_idx < 240; ssb_sc_idx++) {
@@ -397,13 +379,10 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
k++;
m++;
}
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
///symbol 3 [0:239] -- 180 mod symbols
k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier;
k = frame_parms->ssb_start_subcarrier;
l++;
m=252;
@@ -419,9 +398,5 @@ void nr_generate_pbch(PHY_VARS_gNB *gNB,
k++;
m++;
}
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
}
openair1/PHY/NR_TRANSPORT/nr_prs.c
+4 -7
View File
@@ -51,9 +51,9 @@ int nr_generate_prs(int slot, c16_t *txdataF, int16_t amp, prs_config_t *prs_cfg
else if (prs_cfg->CombSize == 12){
k_prime = k_prime_table[3][symInd];
}
k = (prs_cfg->REOffset+k_prime) % prs_cfg->CombSize + prs_cfg->RBOffset*12 + frame_parms->first_carrier_offset;
k = (prs_cfg->REOffset + k_prime) % prs_cfg->CombSize + prs_cfg->RBOffset * 12;
// QPSK modulation
uint32_t *gold = nr_gold_prs(prs_cfg->NPRSID, slot, l);
for (int m = 0; m < (12/prs_cfg->CombSize) * prs_cfg->NumRB; m++) {
@@ -66,10 +66,7 @@ int nr_generate_prs(int slot, c16_t *txdataF, int16_t amp, prs_config_t *prs_cfg
txdataF[l * frame_parms->ofdm_symbol_size + k] = c16mulRealShift(mod_prs[m], amp, 15);
k = k + prs_cfg->CombSize;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
}
}
#ifdef DEBUG_PRS_MAP
LOG_M("nr_prs.m", "prs",(int16_t *)&txdataF[prs_cfg->SymbolStart*frame_parms->ofdm_symbol_size],prs_cfg->NumPRSSymbols*frame_parms->ofdm_symbol_size, 1, 1);
openair1/PHY/NR_TRANSPORT/nr_pss.c
+1 -5
View File
@@ -49,8 +49,7 @@ int nr_generate_pss( c16_t *txdataF,
/// Resource mapping
// PSS occupies a predefined position (subcarriers 56-182, symbol 0) within the SSB block starting from
int k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier + 56; //and
if (k>= frame_parms->ofdm_symbol_size) k-=frame_parms->ofdm_symbol_size;
int k = frame_parms->ssb_start_subcarrier + 56;
int l = ssb_start_symbol;
@@ -61,9 +60,6 @@ int nr_generate_pss( c16_t *txdataF,
// printf("pss: writing position k %d / %d\n",k,frame_parms->ofdm_symbol_size);
((int16_t*)txdataF)[2*(l*frame_parms->ofdm_symbol_size + k)] = (((int16_t)amp) * d_pss) >> 15;
k++;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
#ifdef NR_PSS_DEBUG
openair1/PHY/NR_TRANSPORT/nr_sss.c
+1 -4
View File
@@ -59,16 +59,13 @@ int nr_generate_sss( c16_t *txdataF,
/// Resource mapping
// SSS occupies a predefined position (subcarriers 56-182, symbol 2) within the SSB block starting from
int k = frame_parms->first_carrier_offset + frame_parms->ssb_start_subcarrier + 56; //and
int k = frame_parms->ssb_start_subcarrier + 56;
int l = ssb_start_symbol + 2;
for (int i = 0; i < NR_SSS_LENGTH; i++) {
int16_t d_sss = (1 - 2*x0[(i + m0) % NR_SSS_LENGTH] ) * (1 - 2*x1[(i + m1) % NR_SSS_LENGTH] ) * 23170;
((int16_t*)txdataF)[2*(l*frame_parms->ofdm_symbol_size + k)] = (((int16_t)amp) * d_sss) >> 15;
k++;
if (k >= frame_parms->ofdm_symbol_size)
k-=frame_parms->ofdm_symbol_size;
}
#ifdef NR_SSS_DEBUG
// write_output("sss_0.m", "sss_0", (void*)txdataF[0][l*frame_parms->ofdm_symbol_size], frame_parms->ofdm_symbol_size, 1, 1);
openair1/PHY/NR_UE_TRANSPORT/csi_rx.c
+1 -2
View File
@@ -281,7 +281,6 @@ static int nr_csi_rs_channel_estimation(
int16_t *log2_maxh,
uint32_t *noise_power)
{
const int dataF_offset = proc->nr_slot_rx * fp->samples_per_slot_wCP;
*noise_power = 0;
int maxh = 0;
int count = 0;
@@ -316,7 +315,7 @@ static int nr_csi_rs_channel_estimation(
for (int lp = 0; lp <= csi_mapping->lprime; lp++) {
uint16_t symb = lp + csi_mapping->loverline[cdm_id];
uint64_t symbol_offset = symb * fp->ofdm_symbol_size;
const c16_t *tx_csi_rs_signal = &csi_rs_generated_signal[port_tx][symbol_offset+dataF_offset];
const c16_t *tx_csi_rs_signal = &csi_rs_generated_signal[port_tx][symbol_offset];
const c16_t *rx_csi_rs_signal = &csi_rs_received_signal[ant_rx][symbol_offset];
c16_t tmp = c16MulConjShift(tx_csi_rs_signal[k], rx_csi_rs_signal[k], nr_csi_info->csi_rs_generated_signal_bits);
// This is not just the LS estimation for each (k,l), but also the sum of the different contributions
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
+8 -1
View File
@@ -1619,7 +1619,14 @@ void nr_tx_rotation_and_ofdm_mod(const uint8_t slot,
if (was_symbol_used[i] == false)
continue;
for (int ap = 0; ap < n_antenna_ports; ap++) {
apply_nr_rotation_TX(frame_parms, txdataF[ap], frame_parms->symbol_rotation[linktype], slot, N_RB, i, 1);
apply_nr_rotation_TX(frame_parms,
txdataF[ap],
false,
frame_parms->symbol_rotation[linktype],
slot,
N_RB,
i,
1);
}
}
}
openair1/PHY/nr_phy_common/src/nr_phy_common_csirs.c
+2 -8
View File
@@ -25,8 +25,6 @@ static void csi_rs_resource_mapping(c16_t **dataF,
int csi_rs_length,
int16_t mod_csi[][csi_rs_length >> 1],
int ofdm_symbol_size,
int dataF_offset,
int start_sc,
const csi_mapping_parms_t *mapping_parms,
int start_rb,
int nb_rbs,
@@ -44,7 +42,7 @@ static void csi_rs_resource_mapping(c16_t **dataF,
int p = s + mapping_parms->j[ji] * gs; // port index
for (int kp = 0; kp <= mapping_parms->kprime; kp++) { // loop over frequency resource elements within a group
// frequency index of current resource element
int k = (start_sc + (n * NR_NB_SC_PER_RB) + mapping_parms->koverline[ji] + kp) % (ofdm_symbol_size);
int k = ((n * NR_NB_SC_PER_RB) + mapping_parms->koverline[ji] + kp);
// wf according to tables 7.4.5.3-2 to 7.4.5.3-5
int wf = kp == 0 ? 1 : (-2 * (s % 2) + 1);
int na = n * alpha;
@@ -66,7 +64,7 @@ static void csi_rs_resource_mapping(c16_t **dataF,
else
wt = -1;
}
int index = (l * ofdm_symbol_size + k) + dataF_offset;
int index = (l * ofdm_symbol_size + k);
dataF[p][index].r = (beta * wt * wf * mod_csi[l][mprime << 1]) >> 15;
dataF[p][index].i = (beta * wt * wf * mod_csi[l][(mprime << 1) + 1]) >> 15;
LOG_D(PHY,
@@ -622,14 +620,10 @@ void nr_generate_csi_rs(const NR_DL_FRAME_PARMS *frame_parms,
// CDM group size from CDM type index
const int gs = get_cdm_group_size(cdm_type);
const int dataF_offset = slot * frame_parms->samples_per_slot_wCP;
csi_rs_resource_mapping(dataF,
frame_parms->N_RB_DL << 4,
mod_csi,
frame_parms->ofdm_symbol_size,
dataF_offset,
frame_parms->first_carrier_offset,
phy_csi_parms,
start_rb,
nr_of_rbs,
openair1/SCHED_NR/nr_ru_procedures.c
+13 -11
View File
@@ -173,7 +173,6 @@ void nr_feptx_prec(RU_t *ru, int frame_tx, int slot_tx)
PHY_VARS_gNB *gNB = gNB_list[0];
nfapi_nr_config_request_scf_t *cfg = &ru->gNB_list[0]->gNB_config;
NR_DL_FRAME_PARMS *fp = ru->nr_frame_parms;
int txdataF_offset = slot_tx * fp->samples_per_slot_wCP;
start_meas(&ru->precoding_stats);
if (gNB->common_vars.analog_bf) {
@@ -193,8 +192,8 @@ void nr_feptx_prec(RU_t *ru, int frame_tx, int slot_tx)
for (int b = 0; b < ru->num_beams_period; b++) {
for (int i = 0; i < Ptx; ++i) {
int tx_idx = i + b * ru->nb_tx;
memcpy((void*)ru->common.txdataF_BF[tx_idx],
(void*)&gNB->common_vars.txdataF[b][i][txdataF_offset],
memcpy((void *)ru->common.txdataF_BF[tx_idx],
(void *)gNB->common_vars.txdataF[b][i],
fp->samples_per_slot_wCP * sizeof(int32_t));
}
}
@@ -216,9 +215,6 @@ void nr_feptx(void *arg)
int startSymbol = feptx->startSymbol;
NR_DL_FRAME_PARMS *fp = ru->nr_frame_parms;
int numSymbols = feptx->numSymbols;
int numSamples = feptx->numSymbols * fp->ofdm_symbol_size;
int txdataF_offset = (slot * fp->samples_per_slot_wCP) + startSymbol * fp->ofdm_symbol_size;
int txdataF_BF_offset = startSymbol * fp->ofdm_symbol_size;
int tx_idx = aa + bb * ru->nb_tx;
@@ -232,11 +228,17 @@ void nr_feptx(void *arg)
}
// If there is no digital beamforming we just need to copy the data to RU
if (ru->config.dbt_config.num_dig_beams == 0 || ru->gNB_list[0]->common_vars.analog_bf)
memcpy((void*)&ru->common.txdataF_BF[tx_idx][txdataF_BF_offset],
(void*)&ru->gNB_list[0]->common_vars.txdataF[bb][aa][txdataF_offset],
numSamples * sizeof(int32_t));
else {
if (ru->config.dbt_config.num_dig_beams == 0 || ru->gNB_list[0]->common_vars.analog_bf) {
// FFT shift
const NR_DL_FRAME_PARMS *fp = &ru->gNB_list[0]->frame_parms;
fft_shift(ru->gNB_list[0]->common_vars.txdataF[bb][aa],
fp->ofdm_symbol_size,
fp->N_RB_DL,
(c16_t *)ru->common.txdataF_BF[tx_idx],
fp->ofdm_symbol_size,
startSymbol,
numSymbols);
} else {
AssertFatal(false, "This needs to be fixed by using appropriate beams from config\n");
}
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+11 -12
View File
@@ -146,7 +146,6 @@ void nr_common_signal_procedures(PHY_VARS_gNB *gNB, int frame, int slot, const n
LOG_D(PHY,"SS TX: frame %d, slot %d, start_symbol %d\n", frame, slot, ssb_start_symbol);
const nfapi_nr_tx_precoding_and_beamforming_t *pb = &pdu->precoding_and_beamforming;
c16_t ***txdataF = gNB->common_vars.txdataF;
int txdataF_offset = slot * fp->samples_per_slot_wCP;
// beam number in a scenario with multiple concurrent beams
int bitmap = SL_to_bitmap(ssb_start_symbol, 4); // 4 ssb symbols
int beam_nb = beam_index_allocation(gNB->enable_analog_das,
@@ -156,15 +155,15 @@ void nr_common_signal_procedures(PHY_VARS_gNB *gNB, int frame, int slot, const n
fp->symbols_per_slot,
bitmap);
nr_generate_pss(&txdataF[beam_nb][0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
nr_generate_sss(&txdataF[beam_nb][0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
nr_generate_pss(txdataF[beam_nb][0], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
nr_generate_sss(txdataF[beam_nb][0], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
uint16_t slots_per_hf = (fp->slots_per_frame) >> 1;
int n_hf = slot < slots_per_hf ? 0 : 1;
int hf = fp->Lmax == 4 ? n_hf : 0;
nr_generate_pbch_dmrs(nr_gold_pbch(fp->Lmax, gNB->gNB_config.cell_config.phy_cell_id.value, hf, ssb_index & 7),
&txdataF[beam_nb][0][txdataF_offset],
txdataF[beam_nb][0],
gNB->TX_AMP,
ssb_start_symbol,
cfg,
@@ -182,7 +181,7 @@ void nr_common_signal_procedures(PHY_VARS_gNB *gNB, int frame, int slot, const n
nr_generate_pbch(gNB,
ssb_pdu,
&txdataF[beam_nb][0][txdataF_offset],
txdataF[beam_nb][0],
ssb_start_symbol,
n_hf,
frame,
@@ -246,7 +245,6 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
{
const NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
const int txdataF_offset = slot * fp->samples_per_slot_wCP;
if ((cfg->cell_config.frame_duplex_type.value == TDD) && (nr_slot_select(cfg,frame,slot) == NR_UPLINK_SLOT))
return;
@@ -254,7 +252,7 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
// clear the transmit data array and beam index for the current slot
for (int i = 0; i < gNB->common_vars.num_beams_period; i++) {
for (int aa = 0; aa < cfg->carrier_config.num_tx_ant.value; aa++) {
memset(&gNB->common_vars.txdataF[i][aa][txdataF_offset], 0, fp->samples_per_slot_wCP * sizeof(***gNB->common_vars.txdataF));
memset(gNB->common_vars.txdataF[i][aa], 0, fp->samples_per_slot_wCP * sizeof(***gNB->common_vars.txdataF));
}
}
@@ -268,13 +266,13 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
{
int slot_prs = (slot - i * prs_config->PRSResourceTimeGap + fp->slots_per_frame) % fp->slots_per_frame;
LOG_D(PHY,"gNB_TX: frame %d, slot %d, slot_prs %d, PRS Resource ID %d\n",frame, slot, slot_prs, rsc_id);
nr_generate_prs(slot_prs, &gNB->common_vars.txdataF[0][0][txdataF_offset], AMP, prs_config, fp);
nr_generate_prs(slot_prs, gNB->common_vars.txdataF[0][0], AMP, prs_config, fp);
}
}
}
for (int i = 0; i < UL_dci_req->numPdus; ++i)
nr_generate_dci(gNB, &UL_dci_req->ul_dci_pdu_list[i].pdcch_pdu.pdcch_pdu_rel15, txdataF_offset, &gNB->frame_parms, slot);
nr_generate_dci(gNB, &UL_dci_req->ul_dci_pdu_list[i].pdcch_pdu.pdcch_pdu_rel15, &gNB->frame_parms, slot);
int num_pdsch = 0;
for (int i = 0; i < DL_req->dl_tti_request_body.nPDUs; ++i) {
@@ -284,7 +282,7 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
nr_common_signal_procedures(gNB, frame, slot, &dl_tti_pdu->ssb_pdu);
break;
case NFAPI_NR_DL_TTI_PDCCH_PDU_TYPE:
nr_generate_dci(gNB, &dl_tti_pdu->pdcch_pdu.pdcch_pdu_rel15, txdataF_offset, &gNB->frame_parms, slot);
nr_generate_dci(gNB, &dl_tti_pdu->pdcch_pdu.pdcch_pdu_rel15, &gNB->frame_parms, slot);
break;
case NFAPI_NR_DL_TTI_CSI_RS_PDU_TYPE:
nr_generate_csi_rs_gNB(gNB, slot, &dl_tti_pdu->csi_rs_pdu);
@@ -321,7 +319,8 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
for (int aa = 0; aa < cfg->carrier_config.num_tx_ant.value; aa++) {
if (gNB->phase_comp) {
apply_nr_rotation_TX(fp,
&gNB->common_vars.txdataF[i][aa][txdataF_offset],
gNB->common_vars.txdataF[i][aa],
true,
fp->symbol_rotation[0],
slot,
fp->N_RB_DL,
@@ -333,7 +332,7 @@ void phy_procedures_gNB_TX(PHY_VARS_gNB *gNB,
T_INT(frame),
T_INT(slot),
T_INT(aa),
T_BUFFER(&gNB->common_vars.txdataF[i][aa][txdataF_offset], fp->samples_per_slot_wCP * sizeof(int32_t)));
T_BUFFER(gNB->common_vars.txdataF[i][aa], fp->samples_per_slot_wCP * sizeof(int32_t)));
}
}
stop_meas(&gNB->phase_comp_stats);
openair1/SIMULATION/NR_PHY/dlsim.c
+21 -8
View File
@@ -1123,29 +1123,35 @@ int main(int argc, char **argv)
phy_procedures_gNB_TX(gNB, &Sched_INFO->DL_req, &Sched_INFO->TX_req, &Sched_INFO->UL_dci_req, frame, slot);
stop_meas(&gNB->phy_proc_tx);
int txdataF_offset = slot * frame_parms->samples_per_slot_wCP;
if (n_trials==1) {
LOG_M("txsigF0.m","txsF0=",
&gNB->common_vars.txdataF[0][0][txdataF_offset +2 * frame_parms->ofdm_symbol_size],
&gNB->common_vars.txdataF[0][0][2 * frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size,
1,
1);
if (gNB->frame_parms.nb_antennas_tx>1)
LOG_M("txsigF1.m","txsF1=",
&gNB->common_vars.txdataF[0][1][txdataF_offset + 2 * frame_parms->ofdm_symbol_size],
&gNB->common_vars.txdataF[0][1][2 * frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size,
1,
1);
}
if (n_trials == 1)
printf("slot_offset %d, txdataF_offset %d \n", slot_offset, txdataF_offset);
printf("slot_offset %d\n", slot_offset);
//TODO: loop over slots
for (aa=0; aa<gNB->frame_parms.nb_antennas_tx; aa++) {
c16_t fft_in_buff[frame_parms->ofdm_symbol_size * frame_parms->symbols_per_slot] __attribute__((aligned(64)));
memset(fft_in_buff, 0, sizeof(fft_in_buff));
if (cyclic_prefix_type == 1) {
PHY_ofdm_mod((int *)&gNB->common_vars.txdataF[0][aa][txdataF_offset],
fft_shift(gNB->common_vars.txdataF[0][aa],
frame_parms->ofdm_symbol_size,
frame_parms->N_RB_DL,
fft_in_buff,
frame_parms->ofdm_symbol_size,
0,
12);
PHY_ofdm_mod((int *)fft_in_buff,
(int *)&txdata[aa][slot_offset],
frame_parms->ofdm_symbol_size,
12,
@@ -1156,7 +1162,14 @@ int main(int argc, char **argv)
for (int i = 0; i < 14; i++) {
was_symbol_used[i] = true;
}
nr_normal_prefix_mod(&gNB->common_vars.txdataF[0][aa][txdataF_offset],
fft_shift(gNB->common_vars.txdataF[0][aa],
frame_parms->ofdm_symbol_size,
frame_parms->N_RB_DL,
fft_in_buff,
frame_parms->ofdm_symbol_size,
0,
14);
nr_normal_prefix_mod(fft_in_buff,
&txdata[aa][slot_offset],
14,
frame_parms,
openair1/SIMULATION/NR_PHY/pbchsim.c
+29 -9
View File
@@ -525,17 +525,28 @@ int main(int argc, char **argv)
nr_common_signal_procedures (gNB,frame,slot, &ssb_pdu[i]);
int samp = get_samples_slot_timestamp(frame_parms, slot);
for (aa=0; aa<gNB->frame_parms.nb_antennas_tx; aa++) {
for (aa = 0; aa < gNB->frame_parms.nb_antennas_tx; aa++) {
c16_t fft_in_buff[frame_parms->ofdm_symbol_size * frame_parms->symbols_per_slot] __attribute__((aligned(64)));
memset(fft_in_buff, 0, sizeof(fft_in_buff));
if (cyclic_prefix_type == 1) {
apply_nr_rotation_TX(frame_parms,
gNB->common_vars.txdataF[0][aa],
true,
frame_parms->symbol_rotation[0],
slot,
frame_parms->N_RB_DL,
0,
12);
PHY_ofdm_mod((int *)gNB->common_vars.txdataF[0][aa],
fft_shift(gNB->common_vars.txdataF[0][aa],
frame_parms->ofdm_symbol_size,
frame_parms->N_RB_DL,
fft_in_buff,
frame_parms->ofdm_symbol_size,
0,
12);
PHY_ofdm_mod((int *)fft_in_buff,
(int *)&txdata[aa][samp],
frame_parms->ofdm_symbol_size,
12,
@@ -544,21 +555,30 @@ int main(int argc, char **argv)
} else {
apply_nr_rotation_TX(frame_parms,
gNB->common_vars.txdataF[0][aa],
true,
frame_parms->symbol_rotation[0],
slot,
frame_parms->N_RB_DL,
0,
14);
PHY_ofdm_mod((int *)gNB->common_vars.txdataF[0][aa],
(int*)&txdata[aa][samp],
fft_shift(gNB->common_vars.txdataF[0][aa],
frame_parms->ofdm_symbol_size,
frame_parms->N_RB_DL,
fft_in_buff,
frame_parms->ofdm_symbol_size,
0,
14);
PHY_ofdm_mod((int *)fft_in_buff,
(int *)&txdata[aa][samp],
frame_parms->ofdm_symbol_size,
1,
frame_parms->nb_prefix_samples0,
CYCLIC_PREFIX);
PHY_ofdm_mod((int *)&gNB->common_vars.txdataF[0][aa][frame_parms->ofdm_symbol_size],
(int*)&txdata[aa][samp + frame_parms->nb_prefix_samples0 + frame_parms->ofdm_symbol_size],
PHY_ofdm_mod((int *)fft_in_buff + frame_parms->ofdm_symbol_size,
(int *)&txdata[aa][samp + frame_parms->nb_prefix_samples0 + frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size,
13,
frame_parms->nb_prefix_samples,
@@ -567,9 +587,9 @@ int main(int argc, char **argv)
}
}
}
LOG_M("txsigF0.m","txsF0", gNB->common_vars.txdataF[0][0],frame_length_complex_samples_no_prefix, 1, 1);
if (gNB->frame_parms.nb_antennas_tx>1)
LOG_M("txsigF1.m","txsF1", gNB->common_vars.txdataF[0][1],frame_length_complex_samples_no_prefix, 1, 1);
LOG_M("txsigF0.m", "txsF0", gNB->common_vars.txdataF[0][0], frame_parms->samples_per_slot_wCP, 1, 1);
if (gNB->frame_parms.nb_antennas_tx > 1)
LOG_M("txsigF1.m", "txsF1", gNB->common_vars.txdataF[0][1], frame_parms->samples_per_slot_wCP, 1, 1);
} else {
printf("Reading %d samples from file to antenna buffer %d\n",frame_length_complex_samples,0);
radio/fhi_72/oaioran.c
+16 -24
View File
@@ -654,21 +654,6 @@ int xran_fh_tx_send_slot(ru_info_t *ru, int frame, int slot, uint64_t timestamp)
int num_totalRB = p_prbMapElm->nRBSize;
int start_totalRB = p_prbMapElm->nRBStart;
int pos_len = 0;
int neg_len = 0;
if (start_totalRB < (num_totalRB >> 1)) // there are PRBs left of DC
neg_len = min((num_totalRB * 6) - (start_totalRB * 12), num_totalRB * N_SC_PER_PRB);
pos_len = (num_totalRB * N_SC_PER_PRB) - neg_len;
// Calculation of the pointer for the section in the buffer.
// start of positive frequency component
uint16_t *src1 = (uint16_t *)&pos[(neg_len == 0) ? ((start_totalRB * N_SC_PER_PRB) - (num_totalRB * 6)) : 0];
// start of negative frequency component
uint16_t *src2 = (uint16_t *)&pos[(start_totalRB * N_SC_PER_PRB) + fftsize - (num_totalRB * 6)];
uint32_t local_src[num_totalRB * N_SC_PER_PRB] __attribute__((aligned(64)));
memcpy((void *)local_src, (void *)src2, neg_len * 4);
memcpy((void *)&local_src[neg_len], (void *)src1, pos_len * 4);
if (ptr && pos) {
u8dptr = (uint8_t *)ptr;
int16_t payload_len = 0;
@@ -728,26 +713,33 @@ int xran_fh_tx_send_slot(ru_info_t *ru, int frame, int slot, uint64_t timestamp)
uint16_t *dst16 = (uint16_t *)dst;
// Start of this section
int32_t *pos_start = pos + (start_totalRB + startRB) * N_SC_PER_PRB;
if (p_prbMapElm->compMethod == XRAN_COMPMETHOD_NONE) {
payload_len = numRB * N_SC_PER_PRB * 4L;
/* convert to Network order */
// NOTE: ggc 11 knows how to generate AVX2 for this!
for (idx = 0; idx < (numRB * N_SC_PER_PRB) * 2; idx++)
((uint16_t *)dst16)[idx] = htons(((uint16_t *)local_src)[idx + startRB * N_SC_PER_PRB * 2]);
((uint16_t *)dst16)[idx] = htons(((uint16_t *)pos_start)[idx]);
} else if (p_prbMapElm->compMethod == XRAN_COMPMETHOD_BLKFLOAT) {
payload_len = (3 * p_prbMapElm->iqWidth + 1) * numRB;
/* Although arm intrinsics natively handle unaligned memory
access, we use a 64 byte aligned input here for maximum
performance. So the src_compr buffer is used for both x86 and arm.
*/
uint32_t src_compr[num_totalRB * N_SC_PER_PRB] __attribute__((aligned(64)));
/* Copy from txdataF with current symbol's PRB start (nRBStart) +
current section's PRB start (UP_nPRBStart) */
memcpy(src_compr, pos_start, (numRB * N_SC_PER_PRB) * sizeof(*pos_start));
#if defined(__i386__) || defined(__x86_64__)
struct xranlib_compress_request bfp_com_req = {};
struct xranlib_compress_response bfp_com_rsp = {};
uint32_t src_compr[num_totalRB * N_SC_PER_PRB] __attribute__((aligned(64)));
if (numRB == num_totalRB) {
bfp_com_req.data_in = (int16_t *)local_src;
} else {
memcpy(src_compr, local_src + (startRB * N_SC_PER_PRB), (numRB * N_SC_PER_PRB) * sizeof(*local_src));
bfp_com_req.data_in = (int16_t *)src_compr;
}
bfp_com_req.data_in = (int16_t *)src_compr;
bfp_com_req.numRBs = numRB;
bfp_com_req.len = payload_len;
@@ -759,7 +751,7 @@ int xran_fh_tx_send_slot(ru_info_t *ru, int frame, int slot, uint64_t timestamp)
xranlib_compress_avx512(&bfp_com_req, &bfp_com_rsp);
#elif defined(__arm__) || defined(__aarch64__)
armral_bfp_compression(p_prbMapElm->iqWidth, numRB, (int16_t *)local_src, (int8_t *)dst);
armral_bfp_compression(p_prbMapElm->iqWidth, numRB, (int16_t *)src_compr, (int8_t *)dst);
#else
AssertFatal(1 == 0, "BFP compression not supported on this architecture");
#endif