1168 lines
52 KiB
C
1168 lines
52 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include "PHY/defs_gNB.h"
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#include "sched_nr.h"
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#include "PHY/NR_TRANSPORT/nr_transport_proto.h"
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#include "PHY/NR_TRANSPORT/nr_dlsch.h"
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#include "PHY/NR_TRANSPORT/nr_ulsch.h"
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#include "PHY/NR_TRANSPORT/nr_dci.h"
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#include "PHY/NR_ESTIMATION/nr_ul_estimation.h"
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#include "nfapi/open-nFAPI/nfapi/public_inc/nfapi_interface.h"
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#include "fapi_nr_l1.h"
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#include "common/utils/LOG/log.h"
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#include "common/utils/LOG/vcd_signal_dumper.h"
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#include "PHY/INIT/nr_phy_init.h"
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#include "PHY/MODULATION/nr_modulation.h"
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#include "PHY/NR_UE_TRANSPORT/srs_modulation_nr.h"
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#include "T.h"
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#include "executables/nr-softmodem.h"
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#include "executables/softmodem-common.h"
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#include "nfapi/oai_integration/vendor_ext.h"
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#include "assertions.h"
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#include <time.h>
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#include <stdint.h>
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#include <openair1/PHY/TOOLS/phy_scope_interface.h>
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//#define DEBUG_RXDATA
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//#define SRS_IND_DEBUG
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int beam_index_allocation(bool das,
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int fapi_beam_index,
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nfapi_nr_analog_beamforming_ve_t *analog_bf,
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NR_gNB_COMMON *common_vars,
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int slot,
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int symbols_per_slot,
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int bitmap_symbols)
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{
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if (!common_vars->beam_id)
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return 0;
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if (das)
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return fapi_beam_index;
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int ru_beam_idx = analog_bf->analog_beam_list[fapi_beam_index].value;
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int idx = -1;
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for (int j = 0; j < common_vars->num_beams_period; j++) {
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// L2 analog beam implementation is slot based, so we need to verify occupancy for the whole slot
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for (int i = 0; i < symbols_per_slot; i++) {
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int current_beam = common_vars->beam_id[j][slot * symbols_per_slot + i];
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if (current_beam == -1 || current_beam == ru_beam_idx)
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idx = j;
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else {
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idx = -1;
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break;
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}
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}
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if (idx != -1)
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break;
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}
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AssertFatal(idx >= 0, "Couldn't allocate beam ID %d\n", ru_beam_idx);
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for (int j = 0; j < symbols_per_slot; j++) {
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if (((bitmap_symbols >> j) & 0x01))
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common_vars->beam_id[idx][slot * symbols_per_slot + j] = ru_beam_idx;
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}
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LOG_D(PHY, "Allocating beam_id[%d] %d in slot %d\n", idx, ru_beam_idx, slot);
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return idx;
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}
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void nr_common_signal_procedures(PHY_VARS_gNB *gNB, int frame, int slot, nfapi_nr_dl_tti_ssb_pdu ssb_pdu)
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{
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NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
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nfapi_nr_dl_tti_ssb_pdu_rel15_t *pdu = &ssb_pdu.ssb_pdu_rel15;
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uint8_t ssb_index = pdu->SsbBlockIndex;
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LOG_D(PHY,"common_signal_procedures: frame %d, slot %d ssb index %d\n", frame, slot, ssb_index);
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int ssb_start_symbol_abs = nr_get_ssb_start_symbol(fp, ssb_index); // computing the starting symbol for current ssb
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uint16_t ssb_start_symbol = ssb_start_symbol_abs % fp->symbols_per_slot; // start symbol wrt slot
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// Setting the first subcarrier
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// 3GPP TS 38.211 sections 7.4.3.1 and 4.4.4.2
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// for FR1 offsetToPointA and k_SSB are expressed in terms of 15 kHz SCS
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// for FR2 offsetToPointA is expressed in terms of 60 kHz SCS and k_SSB expressed in terms of the subcarrier spacing provided
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// by the higher-layer parameter subCarrierSpacingCommon
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nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
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const int scs = cfg->ssb_config.scs_common.value;
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const int prb_offset = (fp->freq_range == FR1) ? pdu->ssbOffsetPointA >> scs : pdu->ssbOffsetPointA >> (scs - 2);
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const int sc_offset = (fp->freq_range == FR1) ? pdu->SsbSubcarrierOffset >> scs : pdu->SsbSubcarrierOffset;
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fp->ssb_start_subcarrier = (12 * prb_offset + sc_offset);
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if (fp->print_ue_help_cmdline_log && IS_SA_MODE(get_softmodem_params())) {
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fp->print_ue_help_cmdline_log = false;
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if (fp->dl_CarrierFreq != fp->ul_CarrierFreq)
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LOG_A(PHY,
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"Command line parameters for OAI UE: -C %lu --CO %ld -r %d --numerology %d --ssb %d %s\n",
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fp->dl_CarrierFreq,
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fp->ul_CarrierFreq - fp->dl_CarrierFreq,
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fp->N_RB_DL,
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scs,
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fp->ssb_start_subcarrier,
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fp->threequarter_fs ? "-E" : "");
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else
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LOG_A(PHY,
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"Command line parameters for OAI UE: -C %lu -r %d --numerology %d --ssb %d %s\n",
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fp->dl_CarrierFreq,
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fp->N_RB_DL,
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scs,
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fp->ssb_start_subcarrier,
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fp->threequarter_fs ? "-E" : "");
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}
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LOG_D(PHY,
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"ssbOffsetPointA %d SSB SsbSubcarrierOffset %d prb_offset %d sc_offset %d scs %d ssb_start_subcarrier %d\n",
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pdu->ssbOffsetPointA,
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pdu->SsbSubcarrierOffset,
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prb_offset,
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sc_offset,
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scs,
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fp->ssb_start_subcarrier);
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LOG_D(PHY,"SS TX: frame %d, slot %d, start_symbol %d\n", frame, slot, ssb_start_symbol);
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nfapi_nr_tx_precoding_and_beamforming_t *pb = &pdu->precoding_and_beamforming;
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c16_t ***txdataF = gNB->common_vars.txdataF;
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int txdataF_offset = slot * fp->samples_per_slot_wCP;
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// beam number in a scenario with multiple concurrent beams
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int bitmap = SL_to_bitmap(ssb_start_symbol, 4); // 4 ssb symbols
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int beam_nb = beam_index_allocation(gNB->enable_analog_das,
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pb->prgs_list[0].dig_bf_interface_list[0].beam_idx,
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&cfg->analog_beamforming_ve,
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&gNB->common_vars,
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slot,
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fp->symbols_per_slot,
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bitmap);
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nr_generate_pss(&txdataF[beam_nb][0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
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nr_generate_sss(&txdataF[beam_nb][0][txdataF_offset], gNB->TX_AMP, ssb_start_symbol, cfg, fp);
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uint16_t slots_per_hf = (fp->slots_per_frame) >> 1;
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int n_hf = slot < slots_per_hf ? 0 : 1;
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int hf = fp->Lmax == 4 ? n_hf : 0;
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nr_generate_pbch_dmrs(nr_gold_pbch(fp->Lmax, gNB->gNB_config.cell_config.phy_cell_id.value, hf, ssb_index & 7),
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&txdataF[beam_nb][0][txdataF_offset],
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gNB->TX_AMP,
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ssb_start_symbol,
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cfg,
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fp);
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#if T_TRACER
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if (T_ACTIVE(T_GNB_PHY_MIB)) {
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unsigned char bch[3];
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bch[0] = pdu->bchPayload & 0xff;
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bch[1] = (pdu->bchPayload >> 8) & 0xff;
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bch[2] = (pdu->bchPayload >> 16) & 0xff;
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T(T_GNB_PHY_MIB, T_INT(0) /* module ID */, T_INT(frame), T_INT(slot), T_BUFFER(bch, 3));
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}
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#endif
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nr_generate_pbch(gNB,
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&ssb_pdu,
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&txdataF[beam_nb][0][txdataF_offset],
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ssb_start_symbol,
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n_hf,
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frame,
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cfg,
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fp);
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}
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// clearing beam information to be provided to RU for all slots (DL and UL)
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void clear_slot_beamid(PHY_VARS_gNB *gNB, int slot)
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{
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LOG_D(PHY, "Clearing beam_id structure for slot %d\n", slot);
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NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
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for (int i = 0; i < gNB->common_vars.num_beams_period; i++) {
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if (gNB->common_vars.beam_id)
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memset(&gNB->common_vars.beam_id[i][slot * fp->symbols_per_slot], -1, fp->symbols_per_slot * sizeof(int));
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}
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}
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void phy_procedures_gNB_TX(processingData_L1tx_t *msgTx,
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int frame,
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int slot,
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int do_meas)
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{
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PHY_VARS_gNB *gNB = msgTx->gNB;
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NR_DL_FRAME_PARMS *fp = &gNB->frame_parms;
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nfapi_nr_config_request_scf_t *cfg = &gNB->gNB_config;
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int slot_prs = 0;
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int txdataF_offset = slot * fp->samples_per_slot_wCP;
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prs_config_t *prs_config = NULL;
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if ((cfg->cell_config.frame_duplex_type.value == TDD) && (nr_slot_select(cfg,frame,slot) == NR_UPLINK_SLOT))
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return;
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_TX + gNB->CC_id, 1);
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// clear the transmit data array and beam index for the current slot
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for (int i = 0; i < gNB->common_vars.num_beams_period; i++) {
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for (int aa = 0; aa < cfg->carrier_config.num_tx_ant.value; aa++) {
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memset(&gNB->common_vars.txdataF[i][aa][txdataF_offset], 0, fp->samples_per_slot_wCP * sizeof(int32_t));
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}
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}
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// Check for PRS slot - section 7.4.1.7.4 in 3GPP rel16 38.211
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for(int rsc_id = 0; rsc_id < gNB->prs_vars.NumPRSResources; rsc_id++)
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{
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prs_config = &gNB->prs_vars.prs_cfg[rsc_id];
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for (int i = 0; i < prs_config->PRSResourceRepetition; i++)
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{
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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 )
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{
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slot_prs = (slot - i*prs_config->PRSResourceTimeGap + fp->slots_per_frame)%fp->slots_per_frame;
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LOG_D(PHY,"gNB_TX: frame %d, slot %d, slot_prs %d, PRS Resource ID %d\n",frame, slot, slot_prs, rsc_id);
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nr_generate_prs(slot_prs, &gNB->common_vars.txdataF[0][0][txdataF_offset], AMP, prs_config, cfg, fp);
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}
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}
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}
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_COMMON_TX,1);
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for (int i = 0; i < fp->Lmax; i++) {
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if (msgTx->ssb[i].active) {
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nr_common_signal_procedures(gNB, frame, slot, msgTx->ssb[i].ssb_pdu);
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msgTx->ssb[i].active = false;
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}
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}
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_COMMON_TX,0);
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int num_pdcch_pdus = msgTx->num_ul_pdcch + msgTx->num_dl_pdcch;
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if (num_pdcch_pdus > 0) {
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LOG_D(PHY, "[gNB %d] Frame %d slot %d Calling nr_generate_dci_top (number of UL/DL PDCCH PDUs %d/%d)\n",
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gNB->Mod_id, frame, slot, msgTx->num_ul_pdcch, msgTx->num_dl_pdcch);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_PDCCH_TX,1);
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nr_generate_dci_top(msgTx, slot, txdataF_offset);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_gNB_PDCCH_TX,0);
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}
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msgTx->num_dl_pdcch = 0;
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msgTx->num_ul_pdcch = 0;
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if (msgTx->num_pdsch_slot > 0) {
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,1);
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LOG_D(PHY, "PDSCH generation started (%d) in frame %d.%d\n", msgTx->num_pdsch_slot,frame,slot);
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nr_generate_pdsch(msgTx, frame, slot);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,0);
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}
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msgTx->num_pdsch_slot = 0;
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for (int i = 0; i < NR_SYMBOLS_PER_SLOT; i++){
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NR_gNB_CSIRS_t *csirs = &msgTx->csirs_pdu[i];
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if (csirs->active == 1) {
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LOG_D(PHY, "CSI-RS generation started in frame %d.%d\n",frame,slot);
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nfapi_nr_dl_tti_csi_rs_pdu_rel15_t *csi_params = &csirs->csirs_pdu.csi_rs_pdu_rel15;
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if (csi_params->csi_type == 2) { // ZP-CSI
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csirs->active = 0;
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return;
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}
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csi_mapping_parms_t mapping_parms = get_csi_mapping_parms(csi_params->row,
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csi_params->freq_domain,
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csi_params->symb_l0,
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csi_params->symb_l1);
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nfapi_nr_tx_precoding_and_beamforming_t *pb = &csi_params->precodingAndBeamforming;
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int csi_bitmap = 0;
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int lprime_num = mapping_parms.lprime + 1;
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for (int j = 0; j < mapping_parms.size; j++)
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csi_bitmap |= ((1 << lprime_num) - 1) << mapping_parms.loverline[j];
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int beam_nb = beam_index_allocation(gNB->enable_analog_das,
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pb->prgs_list[0].dig_bf_interface_list[0].beam_idx,
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&cfg->analog_beamforming_ve,
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&gNB->common_vars,
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slot,
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fp->symbols_per_slot,
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csi_bitmap);
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nr_generate_csi_rs(&gNB->frame_parms,
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&mapping_parms,
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gNB->TX_AMP,
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slot,
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csi_params->freq_density,
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csi_params->start_rb,
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csi_params->nr_of_rbs,
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csi_params->symb_l0,
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csi_params->symb_l1,
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csi_params->row,
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csi_params->scramb_id,
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csi_params->power_control_offset_ss,
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csi_params->cdm_type,
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gNB->common_vars.txdataF[beam_nb]);
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csirs->active = 0;
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}
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}
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//apply the OFDM symbol rotation here
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start_meas(&gNB->phase_comp_stats);
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for (int i = 0; i < gNB->common_vars.num_beams_period; ++i) {
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for (int aa = 0; aa < cfg->carrier_config.num_tx_ant.value; aa++) {
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if (gNB->phase_comp) {
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apply_nr_rotation_TX(fp,
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&gNB->common_vars.txdataF[i][aa][txdataF_offset],
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fp->symbol_rotation[0],
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slot,
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fp->N_RB_DL,
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0,
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fp->Ncp == EXTENDED ? 12 : 14);
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}
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T(T_GNB_PHY_DL_OUTPUT_SIGNAL,
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T_INT(0),
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T_INT(frame),
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T_INT(slot),
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T_INT(aa),
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T_BUFFER(&gNB->common_vars.txdataF[i][aa][txdataF_offset], fp->samples_per_slot_wCP * sizeof(int32_t)));
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}
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}
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stop_meas(&gNB->phase_comp_stats);
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VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_TX + gNB->CC_id, 0);
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}
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static int nr_ulsch_procedures(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, bool *ulsch_to_decode, NR_UL_IND_t *UL_INFO)
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{
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NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
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int nb_pusch = 0;
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for (int ULSCH_id = 0; ULSCH_id < gNB->max_nb_pusch; ULSCH_id++) {
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if (ulsch_to_decode[ULSCH_id]) {
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nb_pusch++;
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}
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}
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if (nb_pusch == 0) {
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return 0;
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}
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uint8_t ULSCH_ids[nb_pusch];
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uint32_t G[nb_pusch];
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int pusch_id = 0;
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for (int ULSCH_id = 0; ULSCH_id < gNB->max_nb_pusch; ULSCH_id++) {
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if (ulsch_to_decode[ULSCH_id]) {
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ULSCH_ids[pusch_id] = ULSCH_id;
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nfapi_nr_pusch_pdu_t *pusch_pdu = &gNB->ulsch[ULSCH_id].harq_process->ulsch_pdu;
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uint16_t nb_re_dmrs;
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uint16_t start_symbol = pusch_pdu->start_symbol_index;
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uint16_t number_symbols = pusch_pdu->nr_of_symbols;
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uint8_t number_dmrs_symbols = 0;
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for (int l = start_symbol; l < start_symbol + number_symbols; l++)
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number_dmrs_symbols += ((pusch_pdu->ul_dmrs_symb_pos)>>l)&0x01;
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if (pusch_pdu->dmrs_config_type==pusch_dmrs_type1)
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nb_re_dmrs = 6*pusch_pdu->num_dmrs_cdm_grps_no_data;
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else
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nb_re_dmrs = 4*pusch_pdu->num_dmrs_cdm_grps_no_data;
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G[pusch_id] = nr_get_G(pusch_pdu->rb_size,
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number_symbols,
|
|
nb_re_dmrs,
|
|
number_dmrs_symbols, // number of dmrs symbols irrespective of single or double symbol dmrs
|
|
gNB->ulsch[ULSCH_id].unav_res,
|
|
pusch_pdu->qam_mod_order,
|
|
pusch_pdu->nrOfLayers);
|
|
AssertFatal(G[pusch_id]>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);
|
|
pusch_id++;
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------
|
|
//--------------------- ULSCH decoding ---------------------
|
|
//----------------------------------------------------------
|
|
|
|
int ret_nr_ulsch_decoding = nr_ulsch_decoding(gNB, frame_parms, frame_rx, slot_rx, G, ULSCH_ids, nb_pusch);
|
|
|
|
// CRC check per uplink shared channel
|
|
for (pusch_id = 0; pusch_id < nb_pusch; pusch_id++) {
|
|
uint8_t ULSCH_id = ULSCH_ids[pusch_id];
|
|
NR_gNB_ULSCH_t *ulsch = &gNB->ulsch[ULSCH_id];
|
|
NR_gNB_PUSCH *pusch = &gNB->pusch_vars[ULSCH_id];
|
|
NR_UL_gNB_HARQ_t *ulsch_harq = ulsch->harq_process;
|
|
nfapi_nr_pusch_pdu_t *pusch_pdu = &ulsch_harq->ulsch_pdu;
|
|
|
|
bool crc_valid = false;
|
|
|
|
// if all segments are done
|
|
if (ulsch_harq->processedSegments == ulsch_harq->C) {
|
|
if (ulsch_harq->C > 1) {
|
|
crc_valid = check_crc(ulsch_harq->b, lenWithCrc(1, (ulsch_harq->TBS) << 3), crcType(1, (ulsch_harq->TBS) << 3));
|
|
} else {
|
|
// When the number of code blocks is 1 (C = 1) and ulsch_harq->processedSegments = 1, we can assume a good TB because of the
|
|
// CRC check made by the LDPC for early termination, so, no need to perform CRC check twice for a single code block
|
|
crc_valid = true;
|
|
}
|
|
}
|
|
|
|
nfapi_nr_crc_t *crc = &UL_INFO->crc_ind.crc_list[UL_INFO->crc_ind.number_crcs++];
|
|
nfapi_nr_rx_data_pdu_t *pdu = &UL_INFO->rx_ind.pdu_list[UL_INFO->rx_ind.number_of_pdus++];
|
|
if (crc_valid && !check_abort(&ulsch_harq->abort_decode) && !pusch->DTX) {
|
|
LOG_D(NR_PHY,
|
|
"[gNB %d] ULSCH %d: 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_id,
|
|
ulsch->frame,
|
|
ulsch->slot,
|
|
ulsch->rnti,
|
|
ulsch->harq_pid,
|
|
pusch_pdu->pusch_data.new_data_indicator,
|
|
ulsch->active,
|
|
ulsch_harq->round,
|
|
ulsch_harq->TBS,
|
|
ulsch->max_ldpc_iterations);
|
|
nr_fill_indication(gNB, ulsch->frame, ulsch->slot, ULSCH_id, ulsch->harq_pid, 0, 0, crc, pdu);
|
|
LOG_D(PHY, "ULSCH received ok \n");
|
|
ulsch->active = false;
|
|
ulsch_harq->round = 0;
|
|
ulsch->last_iteration_cnt = ulsch->max_ldpc_iterations - 1; // Setting to max_ldpc_iterations - 1 is sufficient given that this variable is only used for checking for failure
|
|
} 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)\n",
|
|
gNB->Mod_id,
|
|
ulsch->frame,
|
|
ulsch->slot,
|
|
ulsch->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);
|
|
nr_fill_indication(gNB, ulsch->frame, ulsch->slot, ULSCH_id, ulsch->harq_pid, 1, 0, crc, pdu);
|
|
gNBdumpScopeData(gNB, ulsch->slot, ulsch->frame, "ULSCH_NACK");
|
|
ulsch->handled = 1;
|
|
LOG_D(PHY, "ULSCH %d in error\n",ULSCH_id);
|
|
ulsch->last_iteration_cnt = ulsch->max_ldpc_iterations; // Setting to max_ldpc_iterations is sufficient given that this variable is only used for checking for failure
|
|
}
|
|
}
|
|
|
|
return ret_nr_ulsch_decoding;
|
|
}
|
|
|
|
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,
|
|
nfapi_nr_crc_t *crc,
|
|
nfapi_nr_rx_data_pdu_t *pdu)
|
|
{
|
|
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.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;
|
|
timing_advance_update = max(timing_advance_update, 0);
|
|
timing_advance_update = min(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;
|
|
|
|
crc->handle = pusch_pdu->handle;
|
|
crc->rnti = pusch_pdu->rnti;
|
|
crc->harq_id = harq_pid;
|
|
crc->tb_crc_status = crc_flag;
|
|
crc->num_cb = pusch_pdu->pusch_data.num_cb;
|
|
crc->ul_cqi = cqi;
|
|
crc->timing_advance = timing_advance_update;
|
|
// in terms of dBFS range -128 to 0 with 0.1 step
|
|
crc->rssi =
|
|
(dtx_flag == 0) ? 1280 - (10 * dB_fixed(32767 * 32767) - dB_fixed_times10(gNB->pusch_vars[ULSCH_id].ulsch_power[0])) : 0;
|
|
|
|
pdu->handle = pusch_pdu->handle;
|
|
pdu->rnti = pusch_pdu->rnti;
|
|
pdu->harq_id = harq_pid;
|
|
pdu->ul_cqi = cqi;
|
|
pdu->timing_advance = timing_advance_update;
|
|
pdu->rssi = crc->rssi;
|
|
if (crc_flag)
|
|
pdu->pdu_length = 0;
|
|
else {
|
|
pdu->pdu_length = harq_process->TBS;
|
|
pdu->pdu = harq_process->b;
|
|
}
|
|
}
|
|
|
|
// Function to fill UL RB mask to be used for N0 measurements
|
|
static void fill_ul_rb_mask(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx, uint32_t rb_mask_ul[14][9])
|
|
{
|
|
int rb = 0;
|
|
int rb2 = 0;
|
|
int prbpos = 0;
|
|
|
|
for (int symbol = 0; symbol < 14; symbol++) {
|
|
for (int m = 0; m < 9; m++) {
|
|
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;
|
|
rb_mask_ul[symbol][m] |= (gNB->ulprbbl[prbpos] > 0 ? 1U : 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);
|
|
rb_mask_ul[symbol][rb2>>5] |= (((uint32_t)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;
|
|
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++) {
|
|
rb_mask_ul[srs_pdu->time_start_position + symbol][rb >> 5] |= 1U << (rb & 31);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int fill_srs_reported_symbol(nfapi_nr_srs_reported_symbol_t *reported_symbol,
|
|
const nfapi_nr_srs_pdu_t *srs_pdu,
|
|
const int N_RB_UL,
|
|
const int8_t *snr_per_rb,
|
|
const int srs_est) {
|
|
reported_symbol->num_prgs = srs_pdu->beamforming.num_prgs;
|
|
for (int prg_idx = 0; prg_idx < reported_symbol->num_prgs; prg_idx++) {
|
|
if (srs_est<0) {
|
|
reported_symbol->prg_list[prg_idx].rb_snr = 0xFF;
|
|
} else if (snr_per_rb[prg_idx] < -64) {
|
|
reported_symbol->prg_list[prg_idx].rb_snr = 0;
|
|
} else if (snr_per_rb[prg_idx] > 63) {
|
|
reported_symbol->prg_list[prg_idx].rb_snr = 0xFE;
|
|
} else {
|
|
reported_symbol->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 c16_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++) {
|
|
const c16_t *srs_estimated_channel16 = 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, NR_UL_IND_t *UL_INFO)
|
|
{
|
|
/* 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);
|
|
// Mask of occupied RBs, per symbol and PRB
|
|
uint32_t rb_mask_ul[14][9];
|
|
fill_ul_rb_mask(gNB, frame_rx, slot_rx, rb_mask_ul);
|
|
|
|
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, rb_mask_ul);
|
|
|
|
const int soffset = (slot_rx & 3) * gNB->frame_parms.symbols_per_slot * gNB->frame_parms.ofdm_symbol_size;
|
|
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 (pucch->active && (pucch->frame == frame_rx) && (pucch->slot == slot_rx)) {
|
|
c16_t **rxdataF = gNB->common_vars.rxdataF[pucch->beam_nb];
|
|
pucch_decode_done = 1;
|
|
nfapi_nr_pucch_pdu_t *pucch_pdu = &pucch->pucch_pdu;
|
|
UL_INFO->uci_ind.uci_list = UL_INFO->uci_pdu_list;
|
|
nfapi_nr_uci_t *uci = UL_INFO->uci_ind.uci_list + UL_INFO->uci_ind.num_ucis;
|
|
switch (pucch_pdu->format_type) {
|
|
case 0:
|
|
UL_INFO->uci_ind.sfn = frame_rx;
|
|
UL_INFO->uci_ind.slot = slot_rx;
|
|
uci->pdu_type = NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE;
|
|
uci->pdu_size = sizeof(nfapi_nr_uci_pucch_pdu_format_0_1_t);
|
|
nfapi_nr_uci_pucch_pdu_format_0_1_t *uci_pdu_format0 = &uci->pucch_pdu_format_0_1;
|
|
|
|
int offset = pucch_pdu->start_symbol_index * gNB->frame_parms.ofdm_symbol_size
|
|
+ (gNB->frame_parms.first_carrier_offset + pucch_pdu->prb_start * 12);
|
|
LOG_D(NR_PHY,
|
|
"frame %d, slot %d: PUCCH signal energy %d\n",
|
|
frame_rx,
|
|
slot_rx,
|
|
signal_energy_nodc(&rxdataF[0][soffset + offset], 12));
|
|
|
|
nr_decode_pucch0(gNB, rxdataF, frame_rx, slot_rx, uci_pdu_format0, pucch_pdu);
|
|
|
|
UL_INFO->uci_ind.num_ucis += 1;
|
|
pucch->active = false;
|
|
break;
|
|
case 2:
|
|
UL_INFO->uci_ind.sfn = frame_rx;
|
|
UL_INFO->uci_ind.slot = slot_rx;
|
|
uci->pdu_type = NFAPI_NR_UCI_FORMAT_2_3_4_PDU_TYPE;
|
|
uci->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 = &uci->pucch_pdu_format_2_3_4;
|
|
|
|
LOG_D(PHY, "%d.%d Calling nr_decode_pucch2\n", frame_rx, slot_rx);
|
|
nr_decode_pucch2(gNB, rxdataF, frame_rx, slot_rx, uci_pdu_format2, pucch_pdu);
|
|
|
|
UL_INFO->uci_ind.num_ucis += 1;
|
|
pucch->active = false;
|
|
break;
|
|
default:
|
|
AssertFatal(1 == 0, "Only PUCCH formats 0 and 2 are currently supported\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
UL_INFO->crc_ind.sfn = frame_rx;
|
|
UL_INFO->crc_ind.slot = slot_rx;
|
|
UL_INFO->crc_ind.crc_list = UL_INFO->crc_pdu_list;
|
|
UL_INFO->rx_ind.sfn = frame_rx;
|
|
UL_INFO->rx_ind.slot = slot_rx;
|
|
UL_INFO->rx_ind.pdu_list = UL_INFO->rx_pdu_list;
|
|
bool ulsch_to_decode[gNB->max_nb_pusch];
|
|
bzero((void *)ulsch_to_decode, sizeof(ulsch_to_decode));
|
|
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_tp(gNB, ULSCH_id, frame_rx, slot_rx, ulsch->harq_pid, ulsch->beam_nb);
|
|
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 */
|
|
nfapi_nr_crc_t *crc = &UL_INFO->crc_ind.crc_list[UL_INFO->crc_ind.number_crcs++];
|
|
nfapi_nr_rx_data_pdu_t *pdu = &UL_INFO->rx_ind.pdu_list[UL_INFO->rx_ind.number_of_pdus++];
|
|
nr_fill_indication(gNB, frame_rx, slot_rx, ULSCH_id, ulsch->harq_pid, 1, 1, crc, pdu);
|
|
pusch_DTX++;
|
|
gNBdumpScopeData(gNB, ulsch->slot, ulsch->frame, "ULSCH_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;
|
|
}
|
|
ulsch_to_decode[ULSCH_id] = true;
|
|
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);
|
|
}
|
|
}
|
|
|
|
/* Do ULSCH decoding time measurement only when number of PUSCH is limited to 1
|
|
* (valid for unitary physical simulators). ULSCH processing lopp is then executed
|
|
* only once, which ensures exactly one start and stop of the ULSCH decoding time
|
|
* measurement per processed TB.*/
|
|
if (gNB->max_nb_pusch == 1)
|
|
start_meas(&gNB->ulsch_decoding_stats);
|
|
|
|
int const ret_nr_ulsch_procedures = nr_ulsch_procedures(gNB, frame_rx, slot_rx, ulsch_to_decode, UL_INFO);
|
|
if (ret_nr_ulsch_procedures != 0) {
|
|
LOG_E(PHY,"Error in nr_ulsch_procedures, returned %d\n",ret_nr_ulsch_procedures);
|
|
}
|
|
|
|
/* Do ULSCH decoding time measurement only when number of PUSCH is limited to 1
|
|
* (valid for unitary physical simulators). ULSCH processing loop is then executed
|
|
* only once, which ensures exactly one start and stop of the ULSCH decoding time
|
|
* measurement per processed TB.*/
|
|
if (gNB->max_nb_pusch == 1)
|
|
stop_meas(&gNB->ulsch_decoding_stats);
|
|
for (int i = 0; i < gNB->max_nb_srs; i++) {
|
|
NR_gNB_SRS_t *srs = &gNB->srs[i];
|
|
if (srs) {
|
|
if ((srs->active == true) && (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;
|
|
c16_t srs_received_signal[frame_parms->nb_antennas_rx][frame_parms->ofdm_symbol_size * N_symb_SRS];
|
|
c16_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)));
|
|
c16_t srs_estimated_channel_time[frame_parms->nb_antennas_rx][1 << srs_pdu->num_ant_ports][frame_parms->ofdm_symbol_size]
|
|
__attribute__((aligned(32)));
|
|
c16_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];
|
|
|
|
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);
|
|
c16_t **rxdataF = gNB->common_vars.rxdataF[srs->beam_nb];
|
|
start_meas(&gNB->get_srs_signal_stats);
|
|
int srs_est = nr_get_srs_signal(gNB, rxdataF, 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 c16_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,
|
|
&gNB->srs->snr);
|
|
stop_meas(&gNB->srs_channel_estimation_stats);
|
|
}
|
|
|
|
if ((gNB->srs->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)));
|
|
|
|
UL_INFO->srs_ind.sfn = frame_rx;
|
|
UL_INFO->srs_ind.slot = slot_rx;
|
|
|
|
// data model difficult to understand, nfapi do malloc for this pointer
|
|
UL_INFO->srs_ind.pdu_list = UL_INFO->srs_pdu_list;
|
|
nfapi_nr_srs_indication_pdu_t *srs_indication = UL_INFO->srs_pdu_list + 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 << NFAPI_NR_SRS_BEAMMANAGEMENT:
|
|
srs_indication->srs_usage = NFAPI_NR_SRS_BEAMMANAGEMENT;
|
|
break;
|
|
case 1 << NFAPI_NR_SRS_CODEBOOK:
|
|
srs_indication->srs_usage = NFAPI_NR_SRS_CODEBOOK;
|
|
break;
|
|
case 1 << NFAPI_NR_SRS_NONCODEBOOK:
|
|
srs_indication->srs_usage = NFAPI_NR_SRS_NONCODEBOOK;
|
|
break;
|
|
case 1 << NFAPI_NR_SRS_ANTENNASWITCH:
|
|
srs_indication->srs_usage = NFAPI_NR_SRS_ANTENNASWITCH;
|
|
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, "UL_INFO->srs_ind.sfn = %i\n", UL_INFO->srs_ind.sfn);
|
|
LOG_I(NR_PHY, "UL_INFO->srs_ind.slot = %i\n", 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 NFAPI_NR_SRS_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 ? (gNB->srs->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;
|
|
AssertFatal(nr_srs_bf_report.num_reported_symbols == 1,
|
|
"nr_srs_bf_report.num_reported_symbols %i not handled yet!\n",
|
|
nr_srs_bf_report.num_reported_symbols);
|
|
fill_srs_reported_symbol(&nr_srs_bf_report.reported_symbol_list[0], 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.reported_symbol_list[0].num_prgs = %i\n", nr_srs_bf_report.reported_symbol_list[0].num_prgs);
|
|
for (int prg_idx = 0; prg_idx < nr_srs_bf_report.reported_symbol_list[0].num_prgs; prg_idx++) {
|
|
LOG_I(NR_PHY,
|
|
"nr_srs_beamforming_report.reported_symbol_list[0].prg_list[%3i].rb_snr = %i (%i dB)\n",
|
|
prg_idx,
|
|
nr_srs_bf_report.reported_symbol_list[0].prg_list[prg_idx].rb_snr,
|
|
(nr_srs_bf_report.reported_symbol_list[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 NFAPI_NR_SRS_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 NFAPI_NR_SRS_NONCODEBOOK:
|
|
case NFAPI_NR_SRS_ANTENNASWITCH:
|
|
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
|
|
srs->active = false;
|
|
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][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;
|
|
}
|