mirror of https://github.com/pvnis/srsRAN_4G.git
Initial UE DL NR file test
Xavier Arteaga
3 years ago
committed by
Xavier Arteaga
parent
dcf9ae039c
commit
98929c95a8
@ -0,0 +1,224 @@
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/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#include "srsran/phy/enb/enb_dl_nr.h"
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#include "srsran/phy/phch/ra_dl_nr.h"
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#include "srsran/phy/ue/ue_dl_nr.h"
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#include "srsran/phy/utils/debug.h"
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#include "srsran/phy/utils/random.h"
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#include "srsran/phy/utils/vector.h"
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#include <getopt.h>
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#include <srsran/phy/io/filesource.h>
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static srsran_carrier_nr_t carrier = {
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501, // pci
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0, // absolute_frequency_ssb
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0, // absolute_frequency_point_a
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0, // offset_to_carrier
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srsran_subcarrier_spacing_15kHz, // scs
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52, // nof_prb
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0, // start
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1 // max_mimo_layers
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};
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static char* filename = NULL;
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static srsran_pdcch_cfg_nr_t pdcch_cfg = {};
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static uint16_t rnti = 0x1234;
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static srsran_rnti_type_t rnti_type = srsran_rnti_type_c;
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static srsran_slot_cfg_t slot_cfg = {};
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static void usage(char* prog)
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{
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printf("Usage: %s [pTLR] \n", prog);
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printf("\t-f File name [Default none]\n");
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printf("\t-p Number of BWP (Carrier) PRB [Default %d]\n", carrier.nof_prb);
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printf("\t-i Physical cell identifier [Default %d]\n", carrier.pci);
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printf("\t-n Slot index [Default %d]\n", slot_cfg.idx);
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printf("\t-R RNTI in hexadecimal [Default 0x%x]\n", rnti);
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printf("\t-S Use standard rates [Default %s]\n", srsran_symbol_size_is_standard() ? "yes" : "no");
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printf("\t-v [set srsran_verbose to debug, default none]\n");
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}
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static int parse_args(int argc, char** argv)
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{
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int opt;
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while ((opt = getopt(argc, argv, "fPivnSR")) != -1) {
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switch (opt) {
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case 'f':
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filename = argv[optind];
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break;
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case 'P':
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carrier.nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
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break;
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case 'i':
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carrier.pci = (uint32_t)strtol(argv[optind], NULL, 10);
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break;
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case 'v':
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srsran_verbose++;
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break;
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case 'n':
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slot_cfg.idx = (uint32_t)strtol(argv[optind], NULL, 10);
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break;
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case 'R':
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rnti = (uint16_t)strtol(argv[optind], NULL, 16);
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break;
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case 'S':
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srsran_use_standard_symbol_size(true);
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break;
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default:
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usage(argv[0]);
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return SRSRAN_ERROR;
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}
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}
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return SRSRAN_SUCCESS;
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}
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static int work_ue_dl(srsran_ue_dl_nr_t* ue_dl, srsran_slot_cfg_t* slot)
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{
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// Run FFT
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srsran_ue_dl_nr_estimate_fft(ue_dl, slot);
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// Blind search
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srsran_dci_dl_nr_t dci_dl_rx = {};
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int nof_found_dci = srsran_ue_dl_nr_find_dl_dci(ue_dl, slot, rnti, rnti_type, &dci_dl_rx, 1);
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if (nof_found_dci < SRSRAN_SUCCESS) {
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ERROR("Error in blind search");
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return SRSRAN_ERROR;
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}
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// Print PDCCH blind search candidates
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for (uint32_t i = 0; i < ue_dl->pdcch_info_count; i++) {
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const srsran_ue_dl_nr_pdcch_info_t* info = &ue_dl->pdcch_info[i];
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INFO("PDCCH: rnti=0x%x, crst_id=%d, ss_type=%d, ncce=%d, al=%d, EPRE=%+.2f, RSRP=%+.2f, corr=%.3f; "
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"nof_bits=%d; crc=%s;",
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info->dci_ctx.rnti,
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info->dci_ctx.coreset_id,
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info->dci_ctx.ss_type,
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info->dci_ctx.location.ncce,
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info->dci_ctx.location.L,
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info->measure.epre_dBfs,
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info->measure.rsrp_dBfs,
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info->measure.norm_corr,
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info->nof_bits,
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info->result.crc ? "OK" : "KO");
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}
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if (nof_found_dci < 1) {
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printf("No DCI found :'(\n");
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return SRSRAN_SUCCESS;
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}
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char str[512] = {};
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srsran_dci_dl_nr_to_str(&ue_dl->dci, &dci_dl_rx, str, (uint32_t)sizeof(str));
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printf("Found DCI: %s\n", str);
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return SRSRAN_SUCCESS;
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}
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int main(int argc, char** argv)
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{
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int ret = SRSRAN_ERROR;
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srsran_ue_dl_nr_t ue_dl = {};
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cf_t* buffer[SRSRAN_MAX_PORTS] = {};
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uint32_t sf_len = SRSRAN_SF_LEN_PRB(carrier.nof_prb);
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buffer[0] = srsran_vec_cf_malloc(sf_len);
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if (buffer[0] == NULL) {
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ERROR("Error malloc");
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goto clean_exit;
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}
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srsran_ue_dl_nr_args_t ue_dl_args = {};
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ue_dl_args.nof_rx_antennas = 1;
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ue_dl_args.pdsch.sch.disable_simd = false;
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ue_dl_args.pdsch.sch.decoder_use_flooded = false;
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ue_dl_args.pdsch.measure_evm = true;
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ue_dl_args.pdcch.disable_simd = false;
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ue_dl_args.pdcch.measure_evm = true;
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ue_dl_args.nof_max_prb = carrier.nof_prb;
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// Set default PDSCH configuration
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if (parse_args(argc, argv) < SRSRAN_SUCCESS) {
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goto clean_exit;
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}
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// Check for filename
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if (filename == NULL) {
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ERROR("Filename was not provided");
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goto clean_exit;
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}
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// Open filesource
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srsran_filesource_t filesource = {};
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if (srsran_filesource_init(&filesource, filename, SRSRAN_COMPLEX_FLOAT_BIN) < SRSRAN_SUCCESS) {
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ERROR("Error opening filesource");
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goto clean_exit;
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}
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// Configure CORESET
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srsran_coreset_t* coreset = &pdcch_cfg.coreset[1];
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pdcch_cfg.coreset_present[1] = true;
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coreset->duration = 2;
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for (uint32_t i = 0; i < SRSRAN_CORESET_FREQ_DOMAIN_RES_SIZE; i++) {
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coreset->freq_resources[i] = i < carrier.nof_prb / 6;
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}
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// Configure Search Space
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srsran_search_space_t* search_space = &pdcch_cfg.search_space[0];
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pdcch_cfg.search_space_present[0] = true;
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search_space->id = 0;
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search_space->coreset_id = 1;
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search_space->type = srsran_search_space_type_common_3;
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search_space->formats[0] = srsran_dci_format_nr_0_0;
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search_space->formats[1] = srsran_dci_format_nr_1_0;
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search_space->nof_formats = 2;
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for (uint32_t L = 0; L < SRSRAN_SEARCH_SPACE_NOF_AGGREGATION_LEVELS_NR; L++) {
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search_space->nof_candidates[L] = srsran_pdcch_nr_max_candidates_coreset(coreset, L);
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}
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if (srsran_ue_dl_nr_init(&ue_dl, buffer, &ue_dl_args)) {
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ERROR("Error UE DL");
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goto clean_exit;
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}
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if (srsran_ue_dl_nr_set_carrier(&ue_dl, &carrier)) {
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ERROR("Error setting SCH NR carrier");
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goto clean_exit;
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}
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// Read baseband from file
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if (srsran_filesource_read(&filesource, buffer[0], (int)ue_dl.fft->sf_sz) < SRSRAN_SUCCESS) {
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ERROR("Error reading baseband");
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goto clean_exit;
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}
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srsran_dci_cfg_nr_t dci_cfg = {};
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dci_cfg.bwp_dl_initial_bw = carrier.nof_prb;
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dci_cfg.bwp_ul_initial_bw = carrier.nof_prb;
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dci_cfg.monitor_common_0_0 = true;
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if (srsran_ue_dl_nr_set_pdcch_config(&ue_dl, &pdcch_cfg, &dci_cfg)) {
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ERROR("Error setting CORESET");
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goto clean_exit;
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}
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// Actual decode
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work_ue_dl(&ue_dl, &slot_cfg);
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ret = SRSRAN_SUCCESS;
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clean_exit:
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srsran_ue_dl_nr_free(&ue_dl);
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srsran_filesource_free(&filesource);
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return ret;
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}
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