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openairinterface5g/openair1/SCHED_NR/phy_procedures_nr_gNB.c
T
Laurent THOMAS 206aa36a47 Make read-only globals const, additional fixes 
- Global variables that are never written to are marked const
- Remove some EXTERN declaration
- Remove unused `log_mem_multi` from logging module
2023-08-18 14:20:37 +02:00

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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
#include "PHY/defs_gNB.h"
#include "sched_nr.h"
#include "PHY/NR_TRANSPORT/nr_transport_proto.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
#include "PHY/NR_TRANSPORT/nr_ulsch.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
#include "PHY/NR_ESTIMATION/nr_ul_estimation.h"
#include "nfapi/open-nFAPI/nfapi/public_inc/nfapi_interface.h"
#include "nfapi/open-nFAPI/nfapi/public_inc/nfapi_nr_interface.h"
#include "fapi_nr_l1.h"
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "PHY/INIT/nr_phy_init.h"
#include "PHY/MODULATION/nr_modulation.h"
#include "PHY/NR_UE_TRANSPORT/srs_modulation_nr.h"
#include "T.h"
#include "executables/nr-softmodem.h"
#include "executables/softmodem-common.h"
#include "nfapi/oai_integration/vendor_ext.h"
#include "NR_SRS-ResourceSet.h"
#include "assertions.h"
#include <time.h>
//#define DEBUG_RXDATA
//#define SRS_IND_DEBUG
extern uint8_t nfapi_mode;
void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame,int slot,nfapi_nr_dl_tti_ssb_pdu ssb_pdu) {
NR_DL_FRAME_PARMS *fp=&gNB->frame_parms;
nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
c16_t **txdataF = gNB->common_vars.txdataF;
uint8_t ssb_index, n_hf;
uint16_t ssb_start_symbol;
int txdataF_offset = slot*fp->samples_per_slot_wCP;
uint16_t slots_per_hf = (fp->slots_per_frame)>>1;
if (slot<slots_per_hf)
n_hf=0;
else
n_hf=1;
ssb_index = ssb_pdu.ssb_pdu_rel15.SsbBlockIndex;
LOG_D(PHY,"common_signal_procedures: frame %d, slot %d ssb index %d\n",frame,slot,ssb_index);
int ssb_start_symbol_abs = nr_get_ssb_start_symbol(fp,ssb_index); // computing the starting symbol for current ssb
ssb_start_symbol = ssb_start_symbol_abs % fp->symbols_per_slot; // start symbol wrt slot
// setting the first subcarrier
const int scs = cfg->ssb_config.scs_common.value;
const int prb_offset = (fp->freq_range == nr_FR1) ? ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA>>scs : ssb_pdu.ssb_pdu_rel15.ssbOffsetPointA>>(scs-2);
const int sc_offset = (fp->freq_range == nr_FR1) ? ssb_pdu.ssb_pdu_rel15.SsbSubcarrierOffset >> scs
: ssb_pdu.ssb_pdu_rel15.SsbSubcarrierOffset >> (scs - 2);
fp->ssb_start_subcarrier = (12 * prb_offset + sc_offset);
LOG_D(PHY, "SSB first subcarrier %d (%d,%d)\n", fp->ssb_start_subcarrier, prb_offset, sc_offset);
LOG_D(PHY,"SS TX: frame %d, slot %d, start_symbol %d\n",frame,slot, ssb_start_symbol);
nr_generate_pss(&txdataF[0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
nr_generate_sss(&txdataF[0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
if (fp->Lmax == 4)
nr_generate_pbch_dmrs(gNB->nr_gold_pbch_dmrs[n_hf][ssb_index & 7],
&txdataF[0][txdataF_offset],
gNB->TX_AMP,
ssb_start_symbol,
cfg,
fp);
else
nr_generate_pbch_dmrs(gNB->nr_gold_pbch_dmrs[0][ssb_index & 7],
&txdataF[0][txdataF_offset],
gNB->TX_AMP,
ssb_start_symbol,
cfg,
fp);
#if T_TRACER
if (T_ACTIVE(T_GNB_PHY_MIB)) {
unsigned char bch[3];
bch[0] = ssb_pdu.ssb_pdu_rel15.bchPayload & 0xff;
bch[1] = (ssb_pdu.ssb_pdu_rel15.bchPayload >> 8) & 0xff;
bch[2] = (ssb_pdu.ssb_pdu_rel15.bchPayload >> 16) & 0xff;
T(T_GNB_PHY_MIB, T_INT(0) /* module ID */, T_INT(frame), T_INT(slot), T_BUFFER(bch, 3));
}
#endif
// Beam_id is currently used only for FR2
if (fp->freq_range==nr_FR2){
LOG_D(PHY,"slot %d, ssb_index %d, beam %d\n",slot,ssb_index,cfg->ssb_table.ssb_beam_id_list[ssb_index].beam_id.value);
for (int j=0;j<fp->symbols_per_slot;j++)
gNB->common_vars.beam_id[0][slot*fp->symbols_per_slot+j] = cfg->ssb_table.ssb_beam_id_list[ssb_index].beam_id.value;
}
nr_generate_pbch(&ssb_pdu,
gNB->nr_pbch_interleaver,
&txdataF[0][txdataF_offset],
gNB->TX_AMP,
ssb_start_symbol,
n_hf,
frame,
cfg,
fp);
}
void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
int frame,
int slot,
int do_meas) {
int aa;
PHY_VARS_gNB *gNB = msgTx->gNB;
NR_DL_FRAME_PARMS *fp=&gNB->frame_parms;
nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
int slot_prs = 0;
int txdataF_offset = slot*fp->samples_per_slot_wCP;
prs_config_t *prs_config = NULL;
if ((cfg->cell_config.frame_duplex_type.value == TDD) &&
(nr_slot_select(cfg,frame,slot) == NR_UPLINK_SLOT)) return;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_TX + gNB->CC_id, 1);
// clear the transmit data array and beam index for the current slot
for (aa=0; aa<cfg->carrier_config.num_tx_ant.value; aa++) {
memset(&gNB->common_vars.txdataF[aa][txdataF_offset],0,fp->samples_per_slot_wCP*sizeof(int32_t));
memset(&gNB->common_vars.beam_id[aa][slot*fp->symbols_per_slot],255,fp->symbols_per_slot*sizeof(uint8_t));
}
// Check for PRS slot - section 7.4.1.7.4 in 3GPP rel16 38.211
for(int rsc_id = 0; rsc_id < gNB->prs_vars.NumPRSResources; rsc_id++)
{
prs_config = &gNB->prs_vars.prs_cfg[rsc_id];
for (int i = 0; i < prs_config->PRSResourceRepetition; i++)
{
if( (((frame*fp->slots_per_frame + slot) - (prs_config->PRSResourceSetPeriod[1] + prs_config->PRSResourceOffset)+prs_config->PRSResourceSetPeriod[0])%prs_config->PRSResourceSetPeriod[0]) == i*prs_config->PRSResourceTimeGap )
{
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(gNB->nr_gold_prs[rsc_id][slot_prs],&gNB->common_vars.txdataF[0][txdataF_offset], AMP, prs_config, cfg, fp);
}
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_COMMON_TX,1);
for (int i=0; i<fp->Lmax; i++) {
if (msgTx->ssb[i].active) {
nr_common_signal_procedures(gNB,frame,slot,msgTx->ssb[i].ssb_pdu);
msgTx->ssb[i].active = false;
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_COMMON_TX,0);
int num_pdcch_pdus = msgTx->num_ul_pdcch + msgTx->num_dl_pdcch;
if (num_pdcch_pdus > 0) {
LOG_D(PHY, "[gNB %d] Frame %d slot %d Calling nr_generate_dci_top (number of UL/DL PDCCH PDUs %d/%d)\n",
gNB->Mod_id, frame, slot, msgTx->num_ul_pdcch, msgTx->num_dl_pdcch);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_PDCCH_TX,1);
nr_generate_dci_top(msgTx, slot, (int32_t *)&gNB->common_vars.txdataF[0][txdataF_offset], gNB->TX_AMP, fp);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_PDCCH_TX,0);
}
if (msgTx->num_pdsch_slot > 0) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,1);
LOG_D(PHY, "PDSCH generation started (%d) in frame %d.%d\n", msgTx->num_pdsch_slot,frame,slot);
nr_generate_pdsch(msgTx, frame, slot);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,0);
}
for (int i = 0; i < NR_SYMBOLS_PER_SLOT; i++){
NR_gNB_CSIRS_t *csirs = &msgTx->csirs_pdu[i];
if (csirs->active == 1) {
LOG_D(PHY, "CSI-RS generation started in frame %d.%d\n",frame,slot);
nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *csi_params = &csirs->csirs_pdu.csi_rs_pdu_rel15;
nr_generate_csi_rs(&gNB->frame_parms,
(int32_t **)gNB->common_vars.txdataF,
gNB->TX_AMP,
gNB->nr_csi_info,
csi_params,
slot,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
csirs->active = 0;
}
}
// if ((frame&127) == 0) dump_pdsch_stats(gNB);
//apply the OFDM symbol rotation here
for (aa=0; aa<cfg->carrier_config.num_tx_ant.value; aa++) {
apply_nr_rotation_TX(fp,
&gNB->common_vars.txdataF[aa][txdataF_offset],
fp->symbol_rotation[0],
slot,
fp->N_RB_DL,
0,
fp->Ncp == EXTENDED ? 12 : 14);
T(T_GNB_PHY_DL_OUTPUT_SIGNAL, T_INT(0),
T_INT(frame), T_INT(slot),
T_INT(aa), T_BUFFER(&gNB->common_vars.txdataF[aa][txdataF_offset], fp->samples_per_slot_wCP*sizeof(int32_t)));
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_TX + gNB->CC_id, 0);
}
static void nr_postDecode(PHY_VARS_gNB *gNB, notifiedFIFO_elt_t *req)
{
ldpcDecode_t *rdata = (ldpcDecode_t*) NotifiedFifoData(req);
NR_UL_gNB_HARQ_t *ulsch_harq = rdata->ulsch_harq;
NR_gNB_ULSCH_t *ulsch = rdata->ulsch;
int r = rdata->segment_r;
nfapi_nr_pusch_pdu_t *pusch_pdu = &gNB->ulsch[rdata->ulsch_id].harq_process->ulsch_pdu;
bool decodeSuccess = (rdata->decodeIterations <= rdata->decoderParms.numMaxIter);
ulsch_harq->processedSegments++;
LOG_D(PHY,
"processing result of segment: %d, processed %d/%d\n",
rdata->segment_r,
ulsch_harq->processedSegments,
rdata->nbSegments);
if (decodeSuccess) {
memcpy(ulsch_harq->b + rdata->offset, ulsch_harq->c[r], rdata->Kr_bytes - (ulsch_harq->F >> 3) - ((ulsch_harq->C > 1) ? 3 : 0));
} else {
LOG_D(PHY, "ULSCH %d in error\n", rdata->ulsch_id);
}
//int dumpsig=0;
// if all segments are done
if (rdata->nbSegments == ulsch_harq->processedSegments) {
if (!check_abort(&ulsch_harq->abort_decode) && !gNB->pusch_vars[rdata->ulsch_id].DTX) {
LOG_D(PHY,
"[gNB %d] ULSCH: Setting ACK for SFN/SF %d.%d (rnti %x, pid %d, ndi %d, status %d, round %d, TBS %d, Max interation "
"(all seg) %d)\n",
gNB->Mod_id,
ulsch->frame,
ulsch->slot,
ulsch->rnti,
rdata->harq_pid,
pusch_pdu->pusch_data.new_data_indicator,
ulsch->active,
ulsch_harq->round,
ulsch_harq->TBS,
rdata->decodeIterations);
ulsch->active = false;
ulsch_harq->round = 0;
LOG_D(PHY, "ULSCH received ok \n");
nr_fill_indication(gNB, ulsch->frame, ulsch->slot, rdata->ulsch_id, rdata->harq_pid, 0, 0);
//dumpsig=1;
} else {
LOG_D(PHY,
"[gNB %d] ULSCH: Setting NAK for SFN/SF %d/%d (pid %d, ndi %d, status %d, round %d, RV %d, prb_start %d, prb_size %d, "
"TBS %d) r %d\n",
gNB->Mod_id,
ulsch->frame,
ulsch->slot,
rdata->harq_pid,
pusch_pdu->pusch_data.new_data_indicator,
ulsch->active,
ulsch_harq->round,
ulsch_harq->ulsch_pdu.pusch_data.rv_index,
ulsch_harq->ulsch_pdu.rb_start,
ulsch_harq->ulsch_pdu.rb_size,
ulsch_harq->TBS,
r);
ulsch->handled = 1;
LOG_D(PHY, "ULSCH %d in error\n",rdata->ulsch_id);
nr_fill_indication(gNB, ulsch->frame, ulsch->slot, rdata->ulsch_id, rdata->harq_pid, 1, 0);
// dumpsig=1;
}
ulsch->last_iteration_cnt = rdata->decodeIterations;
/*
if (ulsch_harq->ulsch_pdu.mcs_index == 0 && dumpsig==1) {
int off = ((ulsch_harq->ulsch_pdu.rb_size&1) == 1)? 4:0;
LOG_M("rxsigF0.m","rxsF0",&gNB->common_vars.rxdataF[0][(ulsch_harq->slot&3)*gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot],gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot,1,1);
LOG_M("rxsigF0_ext.m","rxsF0_ext",
&gNB->pusch_vars[0].rxdataF_ext[0][ulsch_harq->ulsch_pdu.start_symbol_index*NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size],ulsch_harq->ulsch_pdu.nr_of_symbols*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1); LOG_M("chestF0.m","chF0",
&gNB->pusch_vars[0].ul_ch_estimates[0][ulsch_harq->ulsch_pdu.start_symbol_index*gNB->frame_parms.ofdm_symbol_size],gNB->frame_parms.ofdm_symbol_size,1,1);
LOG_M("chestF0_ext.m","chF0_ext",
&gNB->pusch_vars[0]->ul_ch_estimates_ext[0][(ulsch_harq->ulsch_pdu.start_symbol_index+1)*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size))], (ulsch_harq->ulsch_pdu.nr_of_symbols-1)*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1); LOG_M("rxsigF0_comp.m","rxsF0_comp",
&gNB->pusch_vars[0].rxdataF_comp[0][ulsch_harq->ulsch_pdu.start_symbol_index*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size))],ulsch_harq->ulsch_pdu.nr_of_symbols*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1); LOG_M("rxsigF0_llr.m","rxsF0_llr",
&gNB->pusch_vars[0].llr[0],(ulsch_harq->ulsch_pdu.nr_of_symbols-1)*NR_NB_SC_PER_RB * ulsch_harq->ulsch_pdu.rb_size *
ulsch_harq->ulsch_pdu.qam_mod_order,1,0); if (gNB->frame_parms.nb_antennas_rx > 1) {
LOG_M("rxsigF1_ext.m","rxsF0_ext",
&gNB->pusch_vars[0].rxdataF_ext[1][ulsch_harq->ulsch_pdu.start_symbol_index*NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size],ulsch_harq->ulsch_pdu.nr_of_symbols*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1); LOG_M("chestF1.m","chF1",
&gNB->pusch_vars[0].ul_ch_estimates[1][ulsch_harq->ulsch_pdu.start_symbol_index*gNB->frame_parms.ofdm_symbol_size],gNB->frame_parms.ofdm_symbol_size,1,1);
LOG_M("chestF1_ext.m","chF1_ext",
&gNB->pusch_vars[0].ul_ch_estimates_ext[1][(ulsch_harq->ulsch_pdu.start_symbol_index+1)*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size))], (ulsch_harq->ulsch_pdu.nr_of_symbols-1)*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1); LOG_M("rxsigF1_comp.m","rxsF1_comp",
&gNB->pusch_vars[0].rxdataF_comp[1][ulsch_harq->ulsch_pdu.start_symbol_index*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size))],ulsch_harq->ulsch_pdu.nr_of_symbols*(off+(NR_NB_SC_PER_RB *
ulsch_harq->ulsch_pdu.rb_size)),1,1);
}
exit(-1);
}
*/
ulsch->last_iteration_cnt = rdata->decodeIterations;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_ULSCH_DECODING,0);
}
}
static int nr_ulsch_procedures(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, int ULSCH_id, uint8_t harq_pid)
{
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
nfapi_nr_pusch_pdu_t *pusch_pdu = &gNB->ulsch[ULSCH_id].harq_process->ulsch_pdu;
uint16_t nb_re_dmrs;
uint16_t start_symbol = pusch_pdu->start_symbol_index;
uint16_t number_symbols = pusch_pdu->nr_of_symbols;
uint8_t number_dmrs_symbols = 0;
for (int l = start_symbol; l < start_symbol + number_symbols; l++)
number_dmrs_symbols += ((pusch_pdu->ul_dmrs_symb_pos)>>l)&0x01;
if (pusch_pdu->dmrs_config_type==pusch_dmrs_type1)
nb_re_dmrs = 6*pusch_pdu->num_dmrs_cdm_grps_no_data;
else
nb_re_dmrs = 4*pusch_pdu->num_dmrs_cdm_grps_no_data;
uint32_t G = nr_get_G(pusch_pdu->rb_size,
number_symbols,
nb_re_dmrs,
number_dmrs_symbols, // number of dmrs symbols irrespective of single or double symbol dmrs
pusch_pdu->qam_mod_order,
pusch_pdu->nrOfLayers);
AssertFatal(G>0,"G is 0 : rb_size %u, number_symbols %d, nb_re_dmrs %d, number_dmrs_symbols %d, qam_mod_order %u, nrOfLayer %u\n",
pusch_pdu->rb_size,
number_symbols,
nb_re_dmrs,
number_dmrs_symbols, // number of dmrs symbols irrespective of single or double symbol dmrs
pusch_pdu->qam_mod_order,
pusch_pdu->nrOfLayers);
LOG_D(PHY,"rb_size %d, number_symbols %d, nb_re_dmrs %d, dmrs symbol positions %d, number_dmrs_symbols %d, qam_mod_order %d, nrOfLayer %d\n",
pusch_pdu->rb_size,
number_symbols,
nb_re_dmrs,
pusch_pdu->ul_dmrs_symb_pos,
number_dmrs_symbols, // number of dmrs symbols irrespective of single or double symbol dmrs
pusch_pdu->qam_mod_order,
pusch_pdu->nrOfLayers);
nr_ulsch_layer_demapping(gNB->pusch_vars[ULSCH_id].llr,
pusch_pdu->nrOfLayers,
pusch_pdu->qam_mod_order,
G,
gNB->pusch_vars[ULSCH_id].llr_layers);
//----------------------------------------------------------
//------------------- ULSCH unscrambling -------------------
//----------------------------------------------------------
start_meas(&gNB->ulsch_unscrambling_stats);
nr_ulsch_unscrambling(gNB->pusch_vars[ULSCH_id].llr, G, pusch_pdu->data_scrambling_id, pusch_pdu->rnti);
stop_meas(&gNB->ulsch_unscrambling_stats);
//----------------------------------------------------------
//--------------------- ULSCH decoding ---------------------
//----------------------------------------------------------
start_meas(&gNB->ulsch_decoding_stats);
int nbDecode =
nr_ulsch_decoding(gNB, ULSCH_id, gNB->pusch_vars[ULSCH_id].llr, frame_parms, pusch_pdu, frame_rx, slot_rx, harq_pid, G);
stop_meas(&gNB->ulsch_decoding_stats);
return nbDecode;
}
void nr_fill_indication(PHY_VARS_gNB *gNB, int frame, int slot_rx, int ULSCH_id, uint8_t harq_pid, uint8_t crc_flag, int dtx_flag)
{
if (!get_softmodem_params()->reorder_thread_disable)
pthread_mutex_lock(&gNB->UL_INFO_mutex);
NR_gNB_ULSCH_t *ulsch = &gNB->ulsch[ULSCH_id];
NR_UL_gNB_HARQ_t *harq_process = ulsch->harq_process;
NR_gNB_PHY_STATS_t *stats = get_phy_stats(gNB, ulsch->rnti);
nfapi_nr_pusch_pdu_t *pusch_pdu = &harq_process->ulsch_pdu;
// Get estimated timing advance for MAC
int sync_pos = ulsch->delay.pusch_est_delay;
// scale the 16 factor in N_TA calculation in 38.213 section 4.2 according to the used FFT size
uint16_t bw_scaling = 16 * gNB->frame_parms.ofdm_symbol_size / 2048;
// do some integer rounding to improve TA accuracy
int sync_pos_rounded;
if (sync_pos > 0)
sync_pos_rounded = sync_pos + (bw_scaling / 2) - 1;
else
sync_pos_rounded = sync_pos - (bw_scaling / 2) + 1;
if (stats)
stats->ulsch_stats.sync_pos = sync_pos;
int timing_advance_update = sync_pos_rounded / bw_scaling;
// put timing advance command in 0..63 range
timing_advance_update += 31;
if (timing_advance_update < 0) timing_advance_update = 0;
if (timing_advance_update > 63) timing_advance_update = 63;
if (crc_flag == 0) LOG_D(PHY, "%d.%d : Received PUSCH : Estimated timing advance PUSCH is = %d, timing_advance_update is %d \n", frame,slot_rx,sync_pos,timing_advance_update);
// estimate UL_CQI for MAC
int SNRtimes10 =
dB_fixed_x10(gNB->pusch_vars[ULSCH_id].ulsch_power_tot) - dB_fixed_x10(gNB->pusch_vars[ULSCH_id].ulsch_noise_power_tot);
LOG_D(PHY,
"%d.%d: Estimated SNR for PUSCH is = %f dB (ulsch_power %f, noise %f) delay %d\n",
frame,
slot_rx,
SNRtimes10 / 10.0,
dB_fixed_x10(gNB->pusch_vars[ULSCH_id].ulsch_power_tot) / 10.0,
dB_fixed_x10(gNB->pusch_vars[ULSCH_id].ulsch_noise_power_tot) / 10.0,
sync_pos);
int cqi;
if (SNRtimes10 < -640) cqi=0;
else if (SNRtimes10 > 635) cqi=255;
else cqi=(640+SNRtimes10)/5;
if (0/*pusch_pdu->mcs_index == 9*/) {
__attribute__((unused))
int off = ((pusch_pdu->rb_size&1) == 1)? 4:0;
LOG_M("rxsigF0.m","rxsF0",&gNB->common_vars.rxdataF[0][(slot_rx&3)*gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot],gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot,1,1);
LOG_M("rxsigF0_ext.m",
"rxsF0_ext",
&gNB->pusch_vars[0].rxdataF_ext[0][pusch_pdu->start_symbol_index * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
pusch_pdu->nr_of_symbols * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
LOG_M("chestF0.m",
"chF0",
&gNB->pusch_vars[0].ul_ch_estimates[0][pusch_pdu->start_symbol_index * gNB->frame_parms.ofdm_symbol_size],
gNB->frame_parms.ofdm_symbol_size,
1,
1);
LOG_M("chestF0_ext.m",
"chF0_ext",
&gNB->pusch_vars[0]
.ul_ch_estimates_ext[0][(pusch_pdu->start_symbol_index + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
(pusch_pdu->nr_of_symbols - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
LOG_M("rxsigF0_comp.m",
"rxsF0_comp",
&gNB->pusch_vars[0].rxdataF_comp[0][pusch_pdu->start_symbol_index * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
pusch_pdu->nr_of_symbols * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
LOG_M("rxsigF0_llr.m",
"rxsF0_llr",
&gNB->pusch_vars[0].llr[0],
(pusch_pdu->nr_of_symbols - 1) * NR_NB_SC_PER_RB * pusch_pdu->rb_size * pusch_pdu->qam_mod_order,
1,
0);
if (gNB->frame_parms.nb_antennas_rx > 1) {
LOG_M("rxsigF1.m","rxsF1",&gNB->common_vars.rxdataF[1][(slot_rx&3)*gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot],gNB->frame_parms.ofdm_symbol_size*gNB->frame_parms.symbols_per_slot,1,1);
LOG_M("rxsigF1_ext.m",
"rxsF1_ext",
&gNB->pusch_vars[0].rxdataF_ext[1][pusch_pdu->start_symbol_index * NR_NB_SC_PER_RB * pusch_pdu->rb_size],
pusch_pdu->nr_of_symbols * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
LOG_M("chestF1.m",
"chF1",
&gNB->pusch_vars[0].ul_ch_estimates[1][pusch_pdu->start_symbol_index * gNB->frame_parms.ofdm_symbol_size],
gNB->frame_parms.ofdm_symbol_size,
1,
1);
LOG_M("chestF1_ext.m",
"chF1_ext",
&gNB->pusch_vars[0]
.ul_ch_estimates_ext[1][(pusch_pdu->start_symbol_index + 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
(pusch_pdu->nr_of_symbols - 1) * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
LOG_M("rxsigF1_comp.m",
"rxsF1_comp",
&gNB->pusch_vars[0].rxdataF_comp[1][pusch_pdu->start_symbol_index * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size))],
pusch_pdu->nr_of_symbols * (off + (NR_NB_SC_PER_RB * pusch_pdu->rb_size)),
1,
1);
}
exit(-1);
}
// crc indication
uint16_t num_crc = gNB->UL_INFO.crc_ind.number_crcs;
gNB->UL_INFO.crc_ind.crc_list = &gNB->crc_pdu_list[0];
gNB->UL_INFO.crc_ind.sfn = frame;
gNB->UL_INFO.crc_ind.slot = slot_rx;
gNB->crc_pdu_list[num_crc].handle = pusch_pdu->handle;
gNB->crc_pdu_list[num_crc].rnti = pusch_pdu->rnti;
gNB->crc_pdu_list[num_crc].harq_id = harq_pid;
gNB->crc_pdu_list[num_crc].tb_crc_status = crc_flag;
gNB->crc_pdu_list[num_crc].num_cb = pusch_pdu->pusch_data.num_cb;
gNB->crc_pdu_list[num_crc].ul_cqi = cqi;
gNB->crc_pdu_list[num_crc].timing_advance = timing_advance_update;
// in terms of dBFS range -128 to 0 with 0.1 step
gNB->crc_pdu_list[num_crc].rssi =
(dtx_flag == 0) ? 1280 - (10 * dB_fixed(32767 * 32767) - dB_fixed_times10(gNB->pusch_vars[ULSCH_id].ulsch_power[0])) : 0;
gNB->UL_INFO.crc_ind.number_crcs++;
// rx indication
uint16_t num_rx = gNB->UL_INFO.rx_ind.number_of_pdus;
gNB->UL_INFO.rx_ind.pdu_list = &gNB->rx_pdu_list[0];
gNB->UL_INFO.rx_ind.sfn = frame;
gNB->UL_INFO.rx_ind.slot = slot_rx;
gNB->rx_pdu_list[num_rx].handle = pusch_pdu->handle;
gNB->rx_pdu_list[num_rx].rnti = pusch_pdu->rnti;
gNB->rx_pdu_list[num_rx].harq_id = harq_pid;
gNB->rx_pdu_list[num_rx].ul_cqi = cqi;
gNB->rx_pdu_list[num_rx].timing_advance = timing_advance_update;
gNB->rx_pdu_list[num_rx].rssi = gNB->crc_pdu_list[num_crc].rssi;
if (crc_flag)
gNB->rx_pdu_list[num_rx].pdu_length = 0;
else {
gNB->rx_pdu_list[num_rx].pdu_length = harq_process->TBS;
gNB->rx_pdu_list[num_rx].pdu = harq_process->b;
}
gNB->UL_INFO.rx_ind.number_of_pdus++;
if (!get_softmodem_params()->reorder_thread_disable)
pthread_mutex_unlock(&gNB->UL_INFO_mutex);
}
// Function to fill UL RB mask to be used for N0 measurements
void fill_ul_rb_mask(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
int rb = 0;
int rb2 = 0;
int prbpos = 0;
for (int symbol=0;symbol<14;symbol++) {
for (int m=0;m<9;m++) {
gNB->rb_mask_ul[symbol][m] = 0;
for (int i=0;i<32;i++) {
prbpos = (m*32)+i;
if (prbpos>gNB->frame_parms.N_RB_UL) break;
gNB->rb_mask_ul[symbol][m] |= (gNB->ulprbbl[prbpos]>0 ? 1 : 0)<<i;
}
}
}
for (int i = 0; i < gNB->max_nb_pucch; i++){
NR_gNB_PUCCH_t *pucch = &gNB->pucch[i];
if (pucch) {
if ((pucch->active == 1) &&
(pucch->frame == frame_rx) &&
(pucch->slot == slot_rx) ) {
nfapi_nr_pucch_pdu_t *pucch_pdu = &pucch->pucch_pdu;
LOG_D(PHY,"%d.%d pucch %d : start_symbol %d, nb_symbols %d, prb_size %d\n",frame_rx,slot_rx,i,pucch_pdu->start_symbol_index,pucch_pdu->nr_of_symbols,pucch_pdu->prb_size);
for (int symbol=pucch_pdu->start_symbol_index ; symbol<(pucch_pdu->start_symbol_index+pucch_pdu->nr_of_symbols);symbol++) {
if(gNB->frame_parms.frame_type == FDD ||
(gNB->frame_parms.frame_type == TDD && gNB->gNB_config.tdd_table.max_tdd_periodicity_list[slot_rx].max_num_of_symbol_per_slot_list[symbol].slot_config.value==1)) {
for (rb=0; rb<pucch_pdu->prb_size; rb++) {
rb2 = rb + pucch_pdu->bwp_start +
((symbol < pucch_pdu->start_symbol_index+(pucch_pdu->nr_of_symbols>>1)) || (pucch_pdu->freq_hop_flag == 0) ?
pucch_pdu->prb_start : pucch_pdu->second_hop_prb);
gNB->rb_mask_ul[symbol][rb2>>5] |= (1<<(rb2&31));
}
}
}
}
}
}
for (int ULSCH_id = 0; ULSCH_id < gNB->max_nb_pusch; ULSCH_id++) {
NR_gNB_ULSCH_t *ulsch = &gNB->ulsch[ULSCH_id];
NR_UL_gNB_HARQ_t *ulsch_harq = ulsch->harq_process;
AssertFatal(ulsch_harq != NULL, "harq_pid %d is not allocated\n", ulsch->harq_pid);
if ((ulsch->active == true) && (ulsch->frame == frame_rx) && (ulsch->slot == slot_rx) && (ulsch->handled == 0)) {
uint8_t symbol_start = ulsch_harq->ulsch_pdu.start_symbol_index;
uint8_t symbol_end = symbol_start + ulsch_harq->ulsch_pdu.nr_of_symbols;
for (int symbol = symbol_start; symbol < symbol_end; symbol++) {
if (gNB->frame_parms.frame_type == FDD
|| (gNB->frame_parms.frame_type == TDD
&& gNB->gNB_config.tdd_table.max_tdd_periodicity_list[slot_rx]
.max_num_of_symbol_per_slot_list[symbol]
.slot_config.value
== 1)) {
LOG_D(PHY, "symbol %d Filling rb_mask_ul rb_size %d\n", symbol, ulsch_harq->ulsch_pdu.rb_size);
for (rb = 0; rb < ulsch_harq->ulsch_pdu.rb_size; rb++) {
rb2 = rb + ulsch_harq->ulsch_pdu.rb_start + ulsch_harq->ulsch_pdu.bwp_start;
gNB->rb_mask_ul[symbol][rb2 >> 5] |= 1U << (rb2 & 31);
}
}
}
}
}
for (int i = 0; i < gNB->max_nb_srs; i++) {
NR_gNB_SRS_t *srs = &gNB->srs[i];
if (srs) {
if ((srs->active == 1) && (srs->frame == frame_rx) && (srs->slot == slot_rx)) {
nfapi_nr_srs_pdu_t *srs_pdu = &srs->srs_pdu;
for(int symbol = 0; symbol<(1<<srs_pdu->num_symbols); symbol++) {
for(rb = srs_pdu->bwp_start; rb < (srs_pdu->bwp_start+srs_pdu->bwp_size); rb++) {
gNB->rb_mask_ul[gNB->frame_parms.symbols_per_slot - srs_pdu->time_start_position - 1 + symbol][rb >> 5] |= 1U
<< (rb & 31);
}
}
}
}
}
}
int fill_srs_reported_symbol_list(nfapi_nr_srs_reported_symbol_t *prgs,
const nfapi_nr_srs_pdu_t *srs_pdu,
const int N_RB_UL,
const int8_t *snr_per_rb,
const int srs_est) {
prgs->num_prgs = srs_pdu->beamforming.num_prgs;
for(int prg_idx = 0; prg_idx < prgs->num_prgs; prg_idx++) {
if (srs_est<0) {
prgs->prg_list[prg_idx].rb_snr = 0xFF;
} else if (snr_per_rb[prg_idx] < -64) {
prgs->prg_list[prg_idx].rb_snr = 0;
} else if (snr_per_rb[prg_idx] > 63) {
prgs->prg_list[prg_idx].rb_snr = 0xFE;
} else {
prgs->prg_list[prg_idx].rb_snr = (snr_per_rb[prg_idx] + 64) << 1;
}
}
return 0;
}
int fill_srs_channel_matrix(uint8_t *channel_matrix,
const nfapi_nr_srs_pdu_t *srs_pdu,
const nr_srs_info_t *nr_srs_info,
const uint8_t normalized_iq_representation,
const uint16_t num_gnb_antenna_elements,
const uint16_t num_ue_srs_ports,
const uint16_t prg_size,
const uint16_t num_prgs,
const NR_DL_FRAME_PARMS *frame_parms,
const int32_t srs_estimated_channel_freq[][1<<srs_pdu->num_ant_ports][frame_parms->ofdm_symbol_size*(1<<srs_pdu->num_symbols)]) {
const uint64_t subcarrier_offset = frame_parms->first_carrier_offset + srs_pdu->bwp_start*NR_NB_SC_PER_RB;
const uint16_t step = prg_size*NR_NB_SC_PER_RB;
c16_t *channel_matrix16 = (c16_t*)channel_matrix;
c8_t *channel_matrix8 = (c8_t*)channel_matrix;
for(int uI = 0; uI < num_ue_srs_ports; uI++) {
for(int gI = 0; gI < num_gnb_antenna_elements; gI++) {
uint16_t subcarrier = subcarrier_offset + nr_srs_info->k_0_p[uI][0];
if (subcarrier>frame_parms->ofdm_symbol_size) {
subcarrier -= frame_parms->ofdm_symbol_size;
}
for(int pI = 0; pI < num_prgs; pI++) {
c16_t *srs_estimated_channel16 = (c16_t *)&srs_estimated_channel_freq[gI][uI][subcarrier];
uint16_t index = uI*num_gnb_antenna_elements*num_prgs + gI*num_prgs + pI;
if (normalized_iq_representation == 0) {
channel_matrix8[index].r = (int8_t)(srs_estimated_channel16->r>>8);
channel_matrix8[index].i = (int8_t)(srs_estimated_channel16->i>>8);
} else {
channel_matrix16[index].r = srs_estimated_channel16->r;
channel_matrix16[index].i = srs_estimated_channel16->i;
}
// Subcarrier increment
subcarrier += step;
if (subcarrier >= frame_parms->ofdm_symbol_size) {
subcarrier=subcarrier-frame_parms->ofdm_symbol_size;
}
}
}
}
return 0;
}
int check_srs_pdu(const nfapi_nr_srs_pdu_t *srs_pdu, nfapi_nr_srs_pdu_t *saved_srs_pdu)
{
if (saved_srs_pdu->bwp_start == srs_pdu->bwp_start &&
saved_srs_pdu->bwp_size == srs_pdu->bwp_size &&
saved_srs_pdu->num_ant_ports == srs_pdu->num_ant_ports &&
saved_srs_pdu->time_start_position == srs_pdu->time_start_position &&
saved_srs_pdu->num_symbols == srs_pdu->num_symbols &&
saved_srs_pdu->config_index == srs_pdu->config_index) {
return 1;
}
*saved_srs_pdu = *srs_pdu;
return 0;
}
int phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
{
/* those variables to log T_GNB_PHY_PUCCH_PUSCH_IQ only when we try to decode */
int pucch_decode_done = 0;
int pusch_decode_done = 0;
int pusch_DTX = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_UESPEC_RX,1);
LOG_D(PHY,"phy_procedures_gNB_uespec_RX frame %d, slot %d\n",frame_rx,slot_rx);
fill_ul_rb_mask(gNB, frame_rx, slot_rx);
int first_symb=0,num_symb=0;
if (gNB->frame_parms.frame_type == TDD)
for(int symbol_count=0; symbol_count<NR_NUMBER_OF_SYMBOLS_PER_SLOT; symbol_count++) {
if (gNB->gNB_config.tdd_table.max_tdd_periodicity_list[slot_rx].max_num_of_symbol_per_slot_list[symbol_count].slot_config.value==1) {
if (num_symb==0) first_symb=symbol_count;
num_symb++;
}
}
else
num_symb = NR_NUMBER_OF_SYMBOLS_PER_SLOT;
gNB_I0_measurements(gNB,slot_rx,first_symb,num_symb);
const int soffset = (slot_rx & 3) * gNB->frame_parms.symbols_per_slot * gNB->frame_parms.ofdm_symbol_size;
int offset = 10 * gNB->frame_parms.ofdm_symbol_size + gNB->frame_parms.first_carrier_offset;
int power_rxF = signal_energy_nodc((int32_t *)&gNB->common_vars.rxdataF[0][soffset + offset + (47 * 12)], 12 * 18);
LOG_D(PHY,"frame %d, slot %d: UL signal energy %d\n",frame_rx,slot_rx,power_rxF);
start_meas(&gNB->phy_proc_rx);
for (int i = 0; i < gNB->max_nb_pucch; i++) {
NR_gNB_PUCCH_t *pucch = &gNB->pucch[i];
if (pucch) {
if (NFAPI_MODE == NFAPI_MODE_PNF)
pucch->frame = frame_rx;
if ((pucch->active == 1) &&
(pucch->frame == frame_rx) &&
(pucch->slot == slot_rx) ) {
pucch_decode_done = 1;
nfapi_nr_pucch_pdu_t *pucch_pdu = &pucch->pucch_pdu;
uint16_t num_ucis;
switch (pucch_pdu->format_type) {
case 0:
num_ucis = gNB->UL_INFO.uci_ind.num_ucis;
gNB->UL_INFO.uci_ind.uci_list = &gNB->uci_pdu_list[0];
gNB->UL_INFO.uci_ind.sfn = frame_rx;
gNB->UL_INFO.uci_ind.slot = slot_rx;
gNB->uci_pdu_list[num_ucis].pdu_type = NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE;
gNB->uci_pdu_list[num_ucis].pdu_size = sizeof(nfapi_nr_uci_pucch_pdu_format_0_1_t);
nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_pdu_format0 = &gNB->uci_pdu_list[num_ucis].pucch_pdu_format_0_1;
offset = pucch_pdu->start_symbol_index*gNB->frame_parms.ofdm_symbol_size + (gNB->frame_parms.first_carrier_offset+pucch_pdu->prb_start*12);
power_rxF = signal_energy_nodc((int32_t *)&gNB->common_vars.rxdataF[0][soffset+offset], 12);
LOG_D(PHY,"frame %d, slot %d: PUCCH signal energy %d\n", frame_rx, slot_rx, power_rxF);
nr_decode_pucch0(gNB,
frame_rx,
slot_rx,
uci_pdu_format0,
pucch_pdu);
gNB->UL_INFO.uci_ind.num_ucis += 1;
pucch->active = 0;
break;
case 2:
num_ucis = gNB->UL_INFO.uci_ind.num_ucis;
gNB->UL_INFO.uci_ind.uci_list = &gNB->uci_pdu_list[0];
gNB->UL_INFO.uci_ind.sfn = frame_rx;
gNB->UL_INFO.uci_ind.slot = slot_rx;
gNB->uci_pdu_list[num_ucis].pdu_type = NFAPI_NR_UCI_FORMAT_2_3_4_PDU_TYPE;
gNB->uci_pdu_list[num_ucis].pdu_size = sizeof(nfapi_nr_uci_pucch_pdu_format_2_3_4_t);
nfapi_nr_uci_pucch_pdu_format_2_3_4_t *uci_pdu_format2 = &gNB->uci_pdu_list[num_ucis].pucch_pdu_format_2_3_4;
LOG_D(PHY, "%d.%d Calling nr_decode_pucch2\n", frame_rx, slot_rx);
nr_decode_pucch2(gNB,
frame_rx,
slot_rx,
uci_pdu_format2,
pucch_pdu);
gNB->UL_INFO.uci_ind.num_ucis += 1;
pucch->active = 0;
break;
default:
AssertFatal(1 == 0, "Only PUCCH formats 0 and 2 are currently supported\n");
}
}
}
}
int totalDecode = 0;
for (int ULSCH_id = 0; ULSCH_id < gNB->max_nb_pusch; ULSCH_id++) {
NR_gNB_ULSCH_t *ulsch = &gNB->ulsch[ULSCH_id];
NR_UL_gNB_HARQ_t *ulsch_harq = ulsch->harq_process;
AssertFatal(ulsch_harq != NULL, "harq_pid %d is not allocated\n", ulsch->harq_pid);
if ((ulsch->active == true) && (ulsch->frame == frame_rx) && (ulsch->slot == slot_rx) && (ulsch->handled == 0)) {
LOG_D(PHY, "PUSCH ID %d with RNTI %x detection started in frame %d slot %d\n", ULSCH_id, ulsch->rnti, frame_rx, slot_rx);
int num_dmrs = 0;
for (int s = 0; s < NR_NUMBER_OF_SYMBOLS_PER_SLOT; s++)
num_dmrs += (ulsch_harq->ulsch_pdu.ul_dmrs_symb_pos >> s) & 1;
#ifdef DEBUG_RXDATA
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
RU_t *ru = gNB->RU_list[0];
int slot_offset = frame_parms->get_samples_slot_timestamp(slot_rx, frame_parms, 0);
slot_offset -= ru->N_TA_offset;
int32_t sample_offset = gNB->common_vars.debugBuff_sample_offset;
nfapi_nr_pusch_pdu_t *pdu = &ulsch_harq->ulsch_pdu;
int16_t *buf = (int16_t *)&gNB->common_vars.debugBuff[offset];
buf[0] = (int16_t)ulsch->rnti;
buf[1] = (int16_t)pdu->rb_size;
buf[2] = (int16_t)pdu->rb_start;
buf[3] = (int16_t)pdu->nr_of_symbols;
buf[4] = (int16_t)pdu->start_symbol_index;
buf[5] = (int16_t)pdu->mcs_index;
buf[6] = (int16_t)pdu->pusch_data.rv_index;
buf[7] = (int16_t)ulsch->harq_pid;
memcpy(&gNB->common_vars.debugBuff[gNB->common_vars.debugBuff_sample_offset + 4],
&ru->common.rxdata[0][slot_offset],
frame_parms->get_samples_per_slot(slot_rx, frame_parms) * sizeof(int32_t));
gNB->common_vars.debugBuff_sample_offset += (frame_parms->get_samples_per_slot(slot_rx, frame_parms) + 1000 + 4);
if (gNB->common_vars.debugBuff_sample_offset > ((frame_parms->get_samples_per_slot(slot_rx, frame_parms) + 1000 + 2) * 20)) {
FILE *f;
f = fopen("rxdata_buff.raw", "w");
if (f == NULL)
exit(1);
fwrite((int16_t *)gNB->common_vars.debugBuff,
2,
(frame_parms->get_samples_per_slot(slot_rx, frame_parms) + 1000 + 4) * 20 * 2,
f);
fclose(f);
exit(-1);
}
#endif
pusch_decode_done = 1;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_NR_RX_PUSCH, 1);
start_meas(&gNB->rx_pusch_stats);
nr_rx_pusch(gNB, ULSCH_id, frame_rx, slot_rx, ulsch->harq_pid);
NR_gNB_PUSCH *pusch_vars = &gNB->pusch_vars[ULSCH_id];
pusch_vars->ulsch_power_tot = 0;
pusch_vars->ulsch_noise_power_tot = 0;
for (int aarx = 0; aarx < gNB->frame_parms.nb_antennas_rx; aarx++) {
pusch_vars->ulsch_power[aarx] /= num_dmrs;
pusch_vars->ulsch_power_tot += pusch_vars->ulsch_power[aarx];
pusch_vars->ulsch_noise_power[aarx] /= num_dmrs;
pusch_vars->ulsch_noise_power_tot += pusch_vars->ulsch_noise_power[aarx];
}
if (dB_fixed_x10(pusch_vars->ulsch_power_tot) < dB_fixed_x10(pusch_vars->ulsch_noise_power_tot) + gNB->pusch_thres) {
NR_gNB_PHY_STATS_t *stats = get_phy_stats(gNB, ulsch->rnti);
LOG_D(PHY,
"PUSCH not detected in %d.%d (%d,%d,%d)\n",
frame_rx,
slot_rx,
dB_fixed_x10(pusch_vars->ulsch_power_tot),
dB_fixed_x10(pusch_vars->ulsch_noise_power_tot),
gNB->pusch_thres);
pusch_vars->ulsch_power_tot = pusch_vars->ulsch_noise_power_tot;
pusch_vars->DTX = 1;
if (stats)
stats->ulsch_stats.DTX++;
if (!get_softmodem_params()->phy_test) {
/* in case of phy_test mode, we still want to decode to measure execution time.
Therefore, we don't yet call nr_fill_indication, it will be called later */
nr_fill_indication(gNB, frame_rx, slot_rx, ULSCH_id, ulsch->harq_pid, 1, 1);
pusch_DTX++;
continue;
}
} else {
LOG_D(PHY,
"PUSCH detected in %d.%d (%d,%d,%d)\n",
frame_rx,
slot_rx,
dB_fixed_x10(pusch_vars->ulsch_power_tot),
dB_fixed_x10(pusch_vars->ulsch_noise_power_tot),
gNB->pusch_thres);
pusch_vars->DTX = 0;
}
stop_meas(&gNB->rx_pusch_stats);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_NR_RX_PUSCH, 0);
// LOG_M("rxdataF_comp.m","rxF_comp",gNB->pusch_vars[0]->rxdataF_comp[0],6900,1,1);
// LOG_M("rxdataF_ext.m","rxF_ext",gNB->pusch_vars[0]->rxdataF_ext[0],6900,1,1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_NR_ULSCH_PROCEDURES_RX, 1);
int const tasks_added = nr_ulsch_procedures(gNB, frame_rx, slot_rx, ULSCH_id, ulsch->harq_pid);
if (tasks_added > 0)
totalDecode += tasks_added;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_NR_ULSCH_PROCEDURES_RX, 0);
}
}
if (totalDecode > 0 && gNB->ldpc_offload_flag == 0) {
while (totalDecode > 0) {
notifiedFIFO_elt_t *req = pullTpool(&gNB->respDecode, &gNB->threadPool);
if (req == NULL)
break; // Tpool has been stopped
nr_postDecode(gNB, req);
delNotifiedFIFO_elt(req);
totalDecode--;
}
}
for (int i = 0; i < gNB->max_nb_srs; i++) {
NR_gNB_SRS_t *srs = &gNB->srs[i];
if (srs) {
if ((srs->active == 1) && (srs->frame == frame_rx) && (srs->slot == slot_rx)) {
LOG_D(NR_PHY, "(%d.%d) gNB is waiting for SRS, id = %i\n", frame_rx, slot_rx, i);
start_meas(&gNB->rx_srs_stats);
NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
nfapi_nr_srs_pdu_t *srs_pdu = &srs->srs_pdu;
uint8_t N_symb_SRS = 1 << srs_pdu->num_symbols;
int32_t srs_received_signal[frame_parms->nb_antennas_rx][frame_parms->ofdm_symbol_size * N_symb_SRS];
int32_t srs_estimated_channel_freq[frame_parms->nb_antennas_rx][1 << srs_pdu->num_ant_ports][frame_parms->ofdm_symbol_size * N_symb_SRS] __attribute__((aligned(32)));
int32_t srs_estimated_channel_time[frame_parms->nb_antennas_rx][1 << srs_pdu->num_ant_ports][frame_parms->ofdm_symbol_size] __attribute__((aligned(32)));
int32_t srs_estimated_channel_time_shifted[frame_parms->nb_antennas_rx][1 << srs_pdu->num_ant_ports][frame_parms->ofdm_symbol_size];
int8_t snr_per_rb[srs_pdu->bwp_size];
int8_t snr = 0;
start_meas(&gNB->generate_srs_stats);
if (check_srs_pdu(srs_pdu, &gNB->nr_srs_info[i]->srs_pdu) == 0) {
generate_srs_nr(srs_pdu, frame_parms, gNB->nr_srs_info[i]->srs_generated_signal, 0, gNB->nr_srs_info[i], AMP, frame_rx, slot_rx);
}
stop_meas(&gNB->generate_srs_stats);
start_meas(&gNB->get_srs_signal_stats);
int srs_est = nr_get_srs_signal(gNB, frame_rx, slot_rx, srs_pdu, gNB->nr_srs_info[i], srs_received_signal);
stop_meas(&gNB->get_srs_signal_stats);
if (srs_est >= 0) {
start_meas(&gNB->srs_channel_estimation_stats);
nr_srs_channel_estimation(gNB,
frame_rx,
slot_rx,
srs_pdu,
gNB->nr_srs_info[i],
(const int32_t **)gNB->nr_srs_info[i]->srs_generated_signal,
srs_received_signal,
srs_estimated_channel_freq,
srs_estimated_channel_time,
srs_estimated_channel_time_shifted,
snr_per_rb,
&snr);
stop_meas(&gNB->srs_channel_estimation_stats);
}
if ((snr * 10) < gNB->srs_thres) {
srs_est = -1;
}
T(T_GNB_PHY_UL_FREQ_CHANNEL_ESTIMATE,
T_INT(0),
T_INT(srs_pdu->rnti),
T_INT(frame_rx),
T_INT(0),
T_INT(0),
T_BUFFER(srs_estimated_channel_freq[0][0], frame_parms->ofdm_symbol_size * sizeof(int32_t)));
T(T_GNB_PHY_UL_TIME_CHANNEL_ESTIMATE,
T_INT(0),
T_INT(srs_pdu->rnti),
T_INT(frame_rx),
T_INT(0),
T_INT(0),
T_BUFFER(srs_estimated_channel_time_shifted[0][0], frame_parms->ofdm_symbol_size * sizeof(int32_t)));
gNB->UL_INFO.srs_ind.pdu_list = &gNB->srs_pdu_list[0];
gNB->UL_INFO.srs_ind.sfn = frame_rx;
gNB->UL_INFO.srs_ind.slot = slot_rx;
nfapi_nr_srs_indication_pdu_t *srs_indication = &gNB->srs_pdu_list[gNB->UL_INFO.srs_ind.number_of_pdus];
srs_indication->handle = srs_pdu->handle;
srs_indication->rnti = srs_pdu->rnti;
start_meas(&gNB->srs_timing_advance_stats);
srs_indication->timing_advance_offset = srs_est >= 0 ? nr_est_timing_advance_srs(frame_parms, srs_estimated_channel_time[0]) : 0xFFFF;
stop_meas(&gNB->srs_timing_advance_stats);
srs_indication->timing_advance_offset_nsec = srs_est >= 0 ? (int16_t)((((int32_t)srs_indication->timing_advance_offset - 31) * ((int32_t)TC_NSEC_x32768)) >> 15) : 0xFFFF;
switch (srs_pdu->srs_parameters_v4.usage) {
case 0:
LOG_W(NR_PHY, "SRS report was not requested by MAC\n");
return 0;
case 1 << NR_SRS_ResourceSet__usage_beamManagement:
srs_indication->srs_usage = NR_SRS_ResourceSet__usage_beamManagement;
break;
case 1 << NR_SRS_ResourceSet__usage_codebook:
srs_indication->srs_usage = NR_SRS_ResourceSet__usage_codebook;
break;
case 1 << NR_SRS_ResourceSet__usage_nonCodebook:
srs_indication->srs_usage = NR_SRS_ResourceSet__usage_nonCodebook;
break;
case 1 << NR_SRS_ResourceSet__usage_antennaSwitching:
srs_indication->srs_usage = NR_SRS_ResourceSet__usage_antennaSwitching;
break;
default:
LOG_E(NR_PHY, "Invalid srs_pdu->srs_parameters_v4.usage %i\n", srs_pdu->srs_parameters_v4.usage);
}
srs_indication->report_type = srs_pdu->srs_parameters_v4.report_type[0];
#ifdef SRS_IND_DEBUG
LOG_I(NR_PHY, "gNB->UL_INFO.srs_ind.sfn = %i\n", gNB->UL_INFO.srs_ind.sfn);
LOG_I(NR_PHY, "gNB->UL_INFO.srs_ind.slot = %i\n", gNB->UL_INFO.srs_ind.slot);
LOG_I(NR_PHY, "srs_indication->rnti = %04x\n", srs_indication->rnti);
LOG_I(NR_PHY, "srs_indication->timing_advance = %i\n", srs_indication->timing_advance_offset);
LOG_I(NR_PHY, "srs_indication->timing_advance_offset_nsec = %i\n", srs_indication->timing_advance_offset_nsec);
LOG_I(NR_PHY, "srs_indication->srs_usage = %i\n", srs_indication->srs_usage);
LOG_I(NR_PHY, "srs_indication->report_type = %i\n", srs_indication->report_type);
#endif
nfapi_srs_report_tlv_t *report_tlv = &srs_indication->report_tlv;
report_tlv->tag = 0;
report_tlv->length = 0;
start_meas(&gNB->srs_report_tlv_stats);
switch (srs_indication->srs_usage) {
case NR_SRS_ResourceSet__usage_beamManagement: {
start_meas(&gNB->srs_beam_report_stats);
nfapi_nr_srs_beamforming_report_t nr_srs_bf_report;
nr_srs_bf_report.prg_size = srs_pdu->beamforming.prg_size;
nr_srs_bf_report.num_symbols = 1 << srs_pdu->num_symbols;
nr_srs_bf_report.wide_band_snr = srs_est >= 0 ? (snr + 64) << 1 : 0xFF; // 0xFF will be set if this field is invalid
nr_srs_bf_report.num_reported_symbols = 1 << srs_pdu->num_symbols;
fill_srs_reported_symbol_list(&nr_srs_bf_report.prgs, srs_pdu, frame_parms->N_RB_UL, snr_per_rb, srs_est);
#ifdef SRS_IND_DEBUG
LOG_I(NR_PHY, "nr_srs_bf_report.prg_size = %i\n", nr_srs_bf_report.prg_size);
LOG_I(NR_PHY, "nr_srs_bf_report.num_symbols = %i\n", nr_srs_bf_report.num_symbols);
LOG_I(NR_PHY, "nr_srs_bf_report.wide_band_snr = %i (%i dB)\n", nr_srs_bf_report.wide_band_snr, (nr_srs_bf_report.wide_band_snr >> 1) - 64);
LOG_I(NR_PHY, "nr_srs_bf_report.num_reported_symbols = %i\n", nr_srs_bf_report.num_reported_symbols);
LOG_I(NR_PHY, "nr_srs_bf_report.prgs[0].num_prgs = %i\n", nr_srs_bf_report.prgs[0].num_prgs);
for (int prg_idx = 0; prg_idx < nr_srs_bf_report.prgs[0].num_prgs; prg_idx++) {
LOG_I(NR_PHY,
"nr_srs_beamforming_report.prgs[0].prg_list[%3i].rb_snr = %i (%i dB)\n",
prg_idx,
nr_srs_bf_report.prgs[0].prg_list[prg_idx].rb_snr,
(nr_srs_bf_report.prgs[0].prg_list[prg_idx].rb_snr >> 1) - 64);
}
#endif
report_tlv->length = pack_nr_srs_beamforming_report(&nr_srs_bf_report, report_tlv->value, sizeof(report_tlv->value));
stop_meas(&gNB->srs_beam_report_stats);
break;
}
case NR_SRS_ResourceSet__usage_codebook: {
start_meas(&gNB->srs_iq_matrix_stats);
nfapi_nr_srs_normalized_channel_iq_matrix_t nr_srs_channel_iq_matrix;
nr_srs_channel_iq_matrix.normalized_iq_representation = srs_pdu->srs_parameters_v4.iq_representation;
nr_srs_channel_iq_matrix.num_gnb_antenna_elements = gNB->frame_parms.nb_antennas_rx;
nr_srs_channel_iq_matrix.num_ue_srs_ports = srs_pdu->srs_parameters_v4.num_total_ue_antennas;
nr_srs_channel_iq_matrix.prg_size = srs_pdu->srs_parameters_v4.prg_size;
nr_srs_channel_iq_matrix.num_prgs = srs_pdu->srs_parameters_v4.srs_bandwidth_size / srs_pdu->srs_parameters_v4.prg_size;
fill_srs_channel_matrix(nr_srs_channel_iq_matrix.channel_matrix,
srs_pdu,
gNB->nr_srs_info[i],
nr_srs_channel_iq_matrix.normalized_iq_representation,
nr_srs_channel_iq_matrix.num_gnb_antenna_elements,
nr_srs_channel_iq_matrix.num_ue_srs_ports,
nr_srs_channel_iq_matrix.prg_size,
nr_srs_channel_iq_matrix.num_prgs,
&gNB->frame_parms,
srs_estimated_channel_freq);
#ifdef SRS_IND_DEBUG
LOG_I(NR_PHY, "nr_srs_channel_iq_matrix.normalized_iq_representation = %i\n", nr_srs_channel_iq_matrix.normalized_iq_representation);
LOG_I(NR_PHY, "nr_srs_channel_iq_matrix.num_gnb_antenna_elements = %i\n", nr_srs_channel_iq_matrix.num_gnb_antenna_elements);
LOG_I(NR_PHY, "nr_srs_channel_iq_matrix.num_ue_srs_ports = %i\n", nr_srs_channel_iq_matrix.num_ue_srs_ports);
LOG_I(NR_PHY, "nr_srs_channel_iq_matrix.prg_size = %i\n", nr_srs_channel_iq_matrix.prg_size);
LOG_I(NR_PHY, "nr_srs_channel_iq_matrix.num_prgs = %i\n", nr_srs_channel_iq_matrix.num_prgs);
c16_t *channel_matrix16 = (c16_t *)nr_srs_channel_iq_matrix.channel_matrix;
c8_t *channel_matrix8 = (c8_t *)nr_srs_channel_iq_matrix.channel_matrix;
for (int uI = 0; uI < nr_srs_channel_iq_matrix.num_ue_srs_ports; uI++) {
for (int gI = 0; gI < nr_srs_channel_iq_matrix.num_gnb_antenna_elements; gI++) {
for (int pI = 0; pI < nr_srs_channel_iq_matrix.num_prgs; pI++) {
uint16_t index =
uI * nr_srs_channel_iq_matrix.num_gnb_antenna_elements * nr_srs_channel_iq_matrix.num_prgs + gI * nr_srs_channel_iq_matrix.num_prgs + pI;
LOG_I(NR_PHY,
"(uI %i, gI %i, pI %i) channel_matrix --> real %i, imag %i\n",
uI,
gI,
pI,
nr_srs_channel_iq_matrix.normalized_iq_representation == 0 ? channel_matrix8[index].r : channel_matrix16[index].r,
nr_srs_channel_iq_matrix.normalized_iq_representation == 0 ? channel_matrix8[index].i : channel_matrix16[index].i);
}
}
}
#endif
report_tlv->length = pack_nr_srs_normalized_channel_iq_matrix(&nr_srs_channel_iq_matrix, report_tlv->value, sizeof(report_tlv->value));
stop_meas(&gNB->srs_iq_matrix_stats);
break;
}
case NR_SRS_ResourceSet__usage_nonCodebook:
case NR_SRS_ResourceSet__usage_antennaSwitching:
LOG_W(NR_PHY, "PHY procedures for this SRS usage are not implemented yet!\n");
break;
default:
AssertFatal(1 == 0, "Invalid SRS usage\n");
}
stop_meas(&gNB->srs_report_tlv_stats);
#ifdef SRS_IND_DEBUG
LOG_I(NR_PHY, "report_tlv->tag = %i\n", report_tlv->tag);
LOG_I(NR_PHY, "report_tlv->length = %i\n", report_tlv->length);
char *value = (char *)report_tlv->value;
for (int b = 0; b < report_tlv->length; b++) {
LOG_I(NR_PHY, "value[%i] = 0x%02x\n", b, value[b] & 0xFF);
}
#endif
gNB->UL_INFO.srs_ind.number_of_pdus += 1;
srs->active = 0;
stop_meas(&gNB->rx_srs_stats);
}
}
}
stop_meas(&gNB->phy_proc_rx);
if (pucch_decode_done || pusch_decode_done) {
T(T_GNB_PHY_PUCCH_PUSCH_IQ, T_INT(frame_rx), T_INT(slot_rx), T_BUFFER(&gNB->common_vars.rxdataF[0][0], gNB->frame_parms.symbols_per_slot * gNB->frame_parms.ofdm_symbol_size * 4));
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_UESPEC_RX,0);
return pusch_DTX;
}
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