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c76ae22328
Draft: Introduce group based processing for 5G uplink MU-MIMO and a MU-MIMO physical simulator See merge request oai/openairinterface5g!4093
202 lines
7.1 KiB
C
202 lines
7.1 KiB
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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/*!
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* \brief Top-level routines for the reception of the PUSCH TS 38.211 v 15.4.0
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*/
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#include <stdint.h>
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#include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
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#include "PHY/NR_TRANSPORT/nr_ulsch.h"
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#include "SCHED_NR/sched_nr.h"
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static void dump_pusch_pdu(int instance, int frame, int slot, nfapi_nr_pusch_pdu_t *pusch_pdu)
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{
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LOG_D(PHY,
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"[gNB %d] %d.%d ULSCH PDU pdu_bit_map %u "
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"rnti %u "
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"handle %u "
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"bwp_size %u "
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"bwp_start %u "
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"subcarrier_spacing %u "
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"cyclic_prefix %u "
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"target_code_rate %u "
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"qam_mod_order %u "
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"mcs_index %u "
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"mcs_table %u "
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"transform_precoding %u "
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"data_scrambling_id %u "
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"nrOfLayers %u "
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"ul_dmrs_symb_pos %u "
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"dmrs_config_type %u "
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"ul_dmrs_scrambling_id %u "
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"scid %u "
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"num_dmrs_cdm_grps_no_data %u "
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"dmrs_ports %u "
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"resource_alloc %u "
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"rb_start %u "
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"rb_size %u "
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"vrb_to_prb_mapping %u "
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"frequency_hopping %u "
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"tx_direct_current_location %u "
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"uplink_frequency_shift_7p5khz %u "
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"start_symbol_index %u "
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"nr_of_symbols %u "
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"tbslbrm %u "
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"ldpcBaseGraph %u "
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"pusch_data->rv_index %u "
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"pusch_data->harq_process_id %u "
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"pusch_data->new_data_indicator %u "
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"pusch_data->num_cb %u\n",
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instance,
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frame,
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slot,
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pusch_pdu->pdu_bit_map,
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pusch_pdu->rnti,
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pusch_pdu->handle,
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pusch_pdu->bwp_size,
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pusch_pdu->bwp_start,
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pusch_pdu->subcarrier_spacing,
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pusch_pdu->cyclic_prefix,
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pusch_pdu->target_code_rate,
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pusch_pdu->qam_mod_order,
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pusch_pdu->mcs_index,
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pusch_pdu->mcs_table,
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pusch_pdu->transform_precoding,
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pusch_pdu->data_scrambling_id,
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pusch_pdu->nrOfLayers,
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pusch_pdu->ul_dmrs_symb_pos,
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pusch_pdu->dmrs_config_type,
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pusch_pdu->ul_dmrs_scrambling_id,
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pusch_pdu->scid,
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pusch_pdu->num_dmrs_cdm_grps_no_data,
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pusch_pdu->dmrs_ports,
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pusch_pdu->resource_alloc,
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pusch_pdu->rb_start,
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pusch_pdu->rb_size,
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pusch_pdu->vrb_to_prb_mapping,
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pusch_pdu->frequency_hopping,
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pusch_pdu->tx_direct_current_location,
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pusch_pdu->uplink_frequency_shift_7p5khz,
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pusch_pdu->start_symbol_index,
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pusch_pdu->nr_of_symbols,
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pusch_pdu->maintenance_parms_v3.tbSizeLbrmBytes,
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pusch_pdu->maintenance_parms_v3.ldpcBaseGraph,
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pusch_pdu->pusch_data.rv_index,
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pusch_pdu->pusch_data.harq_process_id,
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pusch_pdu->pusch_data.new_data_indicator,
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pusch_pdu->pusch_data.num_cb);
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}
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void nr_fill_ulsch(PHY_VARS_gNB *gNB,
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int frame,
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int slot,
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nfapi_nr_pusch_pdu_t *ulsch_pdu,
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int16_t mu_group_idx,
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uint8_t mu_group_size)
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{
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dump_pusch_pdu(gNB->Mod_id, frame, slot, ulsch_pdu);
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LOG_D(NR_PHY,
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"%4d.%2d Programming ULSCH RNTI %04x HARQ PID %d new data indicator %d\n",
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frame,
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slot,
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ulsch_pdu->rnti,
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ulsch_pdu->pusch_data.harq_process_id,
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ulsch_pdu->pusch_data.new_data_indicator);
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NR_gNB_PUSCH_job_t pusch = {.frame = frame,
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.slot = slot,
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.pusch_pdu = *ulsch_pdu,
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.mu_group_idx = mu_group_idx,
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.mu_group_size = mu_group_size};
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if (gNB->common_vars.beam_id) {
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int fapi_beam_idx = ulsch_pdu->beamforming.prgs_list[0].dig_bf_interface_list[0].beam_idx;
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int bitmap = SL_to_bitmap(ulsch_pdu->start_symbol_index, ulsch_pdu->nr_of_symbols);
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const nfapi_nr_spatial_stream_index_t *p = &ulsch_pdu->param_v4;
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// We assume the ports are ordered continuously. Hence only the start port idx is enough.
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uint16_t ant_port_start = p->numSpatialStreamIndices > 0 ? p->spatialStreamIndices[0] : 0;
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beam_index_allocation(fapi_beam_idx,
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ant_port_start,
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p->numSpatialStreamIndices,
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NR_SYMBOLS_PER_SLOT,
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slot,
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bitmap,
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gNB->frame_parms.nb_antennas_rx,
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gNB->common_vars.beam_id);
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}
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bool done = spsc_q_put(&gNB->pusch_queue, &pusch, sizeof(pusch));
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if (!done)
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LOG_W(NR_PHY, "PUSCH queue is full: dropping PUSCH UE %04x\n", ulsch_pdu->rnti);
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}
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void reset_active_ulsch(PHY_VARS_gNB *gNB, int frame)
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{
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// deactivate ULSCH structure after a given number of frames
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// no activity on this structure for NUMBER_FRAMES_PHY_UE_INACTIVE
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// assuming UE disconnected or some other error occurred
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for (int i = 0; i < gNB->max_nb_pusch; i++) {
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NR_gNB_ULSCH_t *ulsch = &gNB->ulsch[i];
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int diff = (frame - ulsch->frame + 1024) & 1023;
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if (ulsch->active && diff > NUMBER_FRAMES_PHY_UE_INACTIVE && diff < 100) {
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ulsch->active = false;
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LOG_D(NR_PHY,
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"Frame %d: resetting ulsch %d harq %d (programmed in %d.%d)\n",
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frame,
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i,
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ulsch->harq_pid,
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ulsch->frame,
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ulsch->slot);
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}
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}
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}
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void dump_pusch_stats(FILE *fd, PHY_VARS_gNB *gNB)
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{
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for (int i = 0; i < MAX_MOBILES_PER_GNB; i++) {
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NR_gNB_PHY_STATS_t *stats = &gNB->phy_stats[i];
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if (stats->active && stats->frame != stats->ulsch_stats.dump_frame) {
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stats->ulsch_stats.dump_frame = stats->frame;
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for (int aa = 0; aa < gNB->frame_parms.nb_antennas_rx; aa++)
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if (aa == 0)
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fprintf(fd,
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"ULSCH RNTI %4x, %d: ulsch_power[%d] %d,%d ulsch_noise_power[%d] %d.%d, sync_pos %d\n",
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stats->rnti,
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stats->frame,
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aa,
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stats->ulsch_stats.power[aa] / 10,
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stats->ulsch_stats.power[aa] % 10,
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aa,
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stats->ulsch_stats.noise_power[aa] / 10,
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stats->ulsch_stats.noise_power[aa] % 10,
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stats->ulsch_stats.sync_pos);
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else
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fprintf(fd,
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" ulsch_power[%d] %d.%d, ulsch_noise_power[%d] %d.%d\n",
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aa,
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stats->ulsch_stats.power[aa] / 10,
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stats->ulsch_stats.power[aa] % 10,
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aa,
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stats->ulsch_stats.noise_power[aa] / 10,
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stats->ulsch_stats.noise_power[aa] % 10);
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int *rt = stats->ulsch_stats.round_trials;
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fprintf(fd,
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" round_trials %d(%1.1e):%d(%1.1e):%d(%1.1e):%d, DTX %d, current_Qm %d, current_RI %d, total_bytes "
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"RX/SCHED %d/%d\n",
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rt[0],
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(double)rt[1] / rt[0],
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rt[1],
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(double)rt[2] / rt[0],
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rt[2],
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(double)rt[3] / rt[0],
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rt[3],
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stats->ulsch_stats.DTX,
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stats->ulsch_stats.current_Qm,
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stats->ulsch_stats.current_RI,
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stats->ulsch_stats.total_bytes_rx,
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stats->ulsch_stats.total_bytes_tx);
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}
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}
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}
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