int srslte_ue_dl_init(srslte_ue_dl_t* q, cf_t* in_buffer[SRSLTE_MAX_PORTS], uint32_t max_prb, uint32_t nof_rx_antennas) { int ret = SRSLTE_ERROR_INVALID_INPUTS; if (q != NULL && nof_rx_antennas <= SRSLTE_MAX_PORTS) { ret = SRSLTE_ERROR; bzero(q, sizeof(srslte_ue_dl_t)); q->pending_ul_dci_count = 0; q->nof_rx_antennas = nof_rx_antennas; q->mi_auto = true; q->mi_manual_index = 0; q->pregen_rnti = 0; for (int j = 0; j < SRSLTE_MAX_PORTS; j++) { q->sf_symbols[j] = srslte_vec_malloc(MAX_SFLEN_RE * sizeof(cf_t)); if (!q->sf_symbols[j]) { perror("malloc"); goto clean_exit; } } for (int i = 0; i < nof_rx_antennas; i++) { if (srslte_ofdm_rx_init(&q->fft[i], SRSLTE_CP_NORM, in_buffer[i], q->sf_symbols[i], max_prb)) { ERROR("Error initiating FFT\n"); goto clean_exit; } } if (srslte_ofdm_rx_init_mbsfn(&q->fft_mbsfn, SRSLTE_CP_EXT, in_buffer[0], q->sf_symbols[0], max_prb)) { ERROR("Error initiating FFT for MBSFN subframes \n"); goto clean_exit; } srslte_ofdm_set_non_mbsfn_region(&q->fft_mbsfn, 2); // Set a default to init if (srslte_chest_dl_init(&q->chest, max_prb, nof_rx_antennas)) { ERROR("Error initiating channel estimator\n"); goto clean_exit; } if (srslte_chest_dl_res_init(&q->chest_res, max_prb)) { ERROR("Error initiating channel estimator\n"); goto clean_exit; } if (srslte_pcfich_init(&q->pcfich, nof_rx_antennas)) { ERROR("Error creating PCFICH object\n"); goto clean_exit; } if (srslte_phich_init(&q->phich, nof_rx_antennas)) { ERROR("Error creating PHICH object\n"); goto clean_exit; } if (srslte_pdcch_init_ue(&q->pdcch, max_prb, nof_rx_antennas)) { ERROR("Error creating PDCCH object\n"); goto clean_exit; } if (srslte_pdsch_init_ue(&q->pdsch, max_prb, nof_rx_antennas)) { ERROR("Error creating PDSCH object\n"); goto clean_exit; } if (srslte_pmch_init(&q->pmch, max_prb, nof_rx_antennas)) { ERROR("Error creating PMCH object\n"); goto clean_exit; } ret = SRSLTE_SUCCESS; } else { ERROR("Invalid parameters\n"); } clean_exit: if (ret == SRSLTE_ERROR) { srslte_ue_dl_free(q); } return ret; }
int main(int argc, char** argv) { srslte_chest_dl_res_t chest_dl_res; srslte_pdcch_t pdcch_tx, pdcch_rx; testcase_dci_t testcases[10]; srslte_regs_t regs; int i; int nof_re; cf_t *slot_symbols[SRSLTE_MAX_PORTS]; int nof_dcis; bzero(&testcases, sizeof(testcase_dci_t)*10); int ret = -1; parse_args(argc, argv); nof_re = SRSLTE_CP_NORM_NSYMB * cell.nof_prb * SRSLTE_NRE; if (test_dci_payload_size()) { exit(-1); } /* init memory */ srslte_chest_dl_res_init(&chest_dl_res, cell.nof_prb); srslte_chest_dl_res_set_identity(&chest_dl_res); for (i = 0; i < SRSLTE_MAX_PORTS; i++) { slot_symbols[i] = malloc(sizeof(cf_t) * nof_re); if (!slot_symbols[i]) { perror("malloc"); exit(-1); } bzero(slot_symbols[i], sizeof(cf_t) * nof_re); } if (srslte_regs_init(®s, cell)) { ERROR("Error initiating regs\n"); exit(-1); } if (srslte_pdcch_init_enb(&pdcch_tx, cell.nof_prb)) { ERROR("Error creating PDCCH object\n"); exit(-1); } if (srslte_pdcch_set_cell(&pdcch_tx, ®s, cell)) { ERROR("Error setting cell in PDCCH object\n"); exit(-1); } if (srslte_pdcch_init_ue(&pdcch_rx, cell.nof_prb, nof_rx_ant)) { ERROR("Error creating PDCCH object\n"); exit(-1); } if (srslte_pdcch_set_cell(&pdcch_rx, ®s, cell)) { ERROR("Error setting cell in PDCCH object\n"); exit(-1); } /* Resource allocate init */ nof_dcis = 0; srslte_dci_dl_t dci; ZERO_OBJECT(dci); dci.pid = 5; dci.tb[0].mcs_idx = 5; dci.tb[0].ndi = 0; dci.tb[0].rv = 1; dci.alloc_type = SRSLTE_RA_ALLOC_TYPE0; dci.type0_alloc.rbg_bitmask = 0x5; dci.cif_present = dci_cfg.cif_enabled; if (dci_cfg.cif_enabled) { dci.cif = (uint32_t)(random() & 0x7); } /* Format 1 Test case */ if (cell.nof_ports == 1) { testcases[nof_dcis].dci_format = SRSLTE_DCI_FORMAT1; if (dci_cfg.cif_enabled) { dci.cif = (uint32_t)(random() & 0x7); } testcases[nof_dcis].ra_dl_tx = dci; nof_dcis++; /* Format 1 Test case */ dci.tb[0].mcs_idx = 15; testcases[nof_dcis].dci_format = SRSLTE_DCI_FORMAT1; if (dci_cfg.cif_enabled) { dci.cif = (uint32_t)(random() & 0x7); } testcases[nof_dcis].ra_dl_tx = dci; nof_dcis++; } /* Tx Diversity Test case */ if (cell.nof_ports > 1) { dci.tb[1].mcs_idx = 13; dci.tb[1].rv = 3; dci.tb[1].ndi = true; testcases[nof_dcis].dci_format = SRSLTE_DCI_FORMAT2A; if (dci_cfg.cif_enabled) { dci.cif = (uint32_t)(random() & 0x7); } testcases[nof_dcis].ra_dl_tx = dci; nof_dcis++; } /* CDD Spatial Multiplexing Test case */ if (cell.nof_ports > 1) { dci.tb[1].mcs_idx = 28; dci.tb[1].rv = 1; dci.tb[1].ndi = false; testcases[nof_dcis].dci_format = SRSLTE_DCI_FORMAT2; if (dci_cfg.cif_enabled) { dci.cif = (uint32_t)(random() & 0x7); } testcases[nof_dcis].ra_dl_tx = dci; nof_dcis++; } srslte_dci_cfg_t dci_cfg; ZERO_OBJECT(dci_cfg); srslte_dl_sf_cfg_t dl_sf; ZERO_OBJECT(dl_sf); dl_sf.cfi = cfi; for (int s=0;s<10;s++) { dl_sf.tti = s; printf("Encoding %d DCIs for sf_idx=%d\n", nof_dcis, s); /* Execute Rx */ for (i=0;i<nof_dcis;i++) { testcases[i].ra_dl_tx.rnti = (uint16_t) (1234 + i); testcases[i].ra_dl_tx.format = testcases[i].dci_format; srslte_dci_msg_pack_pdsch(&cell, &dl_sf, &dci_cfg, &testcases[i].ra_dl_tx, &testcases[i].dci_tx); srslte_dci_location_set(&testcases[i].dci_location, 0, (uint32_t) i); testcases[i].dci_tx.format = testcases[i].dci_format; testcases[i].dci_tx.location = testcases[i].dci_location; // Enable just 1 TB per default if (testcases[i].dci_format < SRSLTE_DCI_FORMAT2) { for (int j=1;j<SRSLTE_MAX_CODEWORDS;j++) { SRSLTE_DCI_TB_DISABLE(testcases[i].ra_dl_tx.tb[j]); } } if (srslte_pdcch_encode(&pdcch_tx, &dl_sf, &testcases[i].dci_tx, slot_symbols)) { ERROR("Error encoding DCI message\n"); goto quit; } } /* Execute 'Rx' */ if (srslte_pdcch_extract_llr(&pdcch_rx, &dl_sf, &chest_dl_res, slot_symbols)) { ERROR("Error extracting LLRs\n"); goto quit; } /* Decode DCIs */ for (i=0;i<nof_dcis;i++) { testcases[i].dci_rx.format = testcases[i].dci_format; testcases[i].dci_rx.location = testcases[i].dci_location; if (srslte_pdcch_decode_msg(&pdcch_rx, &dl_sf, &dci_cfg, &testcases[i].dci_rx)) { ERROR("Error decoding DCI message\n"); goto quit; } if (srslte_dci_msg_unpack_pdsch(&cell, &dl_sf, &dci_cfg, &testcases[i].dci_rx, &testcases[i].ra_dl_rx)) { ERROR("Error unpacking DCI message\n"); goto quit; } if (testcases[i].dci_rx.rnti >= 1234 && testcases[i].dci_rx.rnti < 1234 + nof_dcis) { testcases[i].dci_rx.rnti -= 1234; } else { printf("Received invalid DCI CRC %d\n", testcases[i].dci_rx.rnti); goto quit; } } /* Compare Tx and Rx */ for (i = 0; i < nof_dcis; i++) { if (memcmp(testcases[i].dci_tx.payload, testcases[i].dci_rx.payload, testcases[i].dci_tx.nof_bits)) { printf("Error in DCI %d: Received data does not match\n", i); goto quit; } #if SRSLTE_DCI_HEXDEBUG // Ignore Hex str bzero(testcases[i].ra_dl_rx.hex_str, sizeof(testcases[i].ra_dl_rx.hex_str)); testcases[i].ra_dl_rx.nof_bits = 0; #endif // Ignore DCI location testcases[i].ra_dl_rx.location = testcases[i].ra_dl_tx.location; // Ignore cw_idx for (int j=0;j<SRSLTE_MAX_CODEWORDS;j++) { testcases[i].ra_dl_rx.tb[j].cw_idx = testcases[i].ra_dl_tx.tb[j].cw_idx; } if (memcmp(&testcases[i].ra_dl_tx, &testcases[i].ra_dl_rx, sizeof(srslte_dci_dl_t))) { uint8_t *x=(uint8_t*) &testcases[i].ra_dl_rx; uint8_t *y=(uint8_t*) &testcases[i].ra_dl_tx; for (int j=0;j<sizeof(srslte_dci_dl_t);j++) { if (x[j] != y[j]) { printf("error in byte %d, rx=%d, tx=%d\n", j, x[j], y[j]); } } printf("tx: "); srslte_vec_fprint_byte(stdout, (uint8_t*) &testcases[i].ra_dl_tx, sizeof(srslte_dci_dl_t)); printf("rx: "); srslte_vec_fprint_byte(stdout, (uint8_t*) &testcases[i].ra_dl_rx, sizeof(srslte_dci_dl_t)); printf("Error in RA %d: Received data does not match\n", i); printf(" Field | Tx | Rx \n"); printf("--------------+----------+----------\n"); if (testcases[i].ra_dl_tx.cif) { printf(" cif | %8d | %8d\n", testcases[i].ra_dl_tx.cif, testcases[i].ra_dl_rx.cif); } printf(" harq_process | %8d | %8d\n", testcases[i].ra_dl_tx.pid, testcases[i].ra_dl_rx.pid); printf(" mcs_idx | %8d | %8d\n", testcases[i].ra_dl_tx.tb[0].mcs_idx, testcases[i].ra_dl_rx.tb[0].mcs_idx); printf(" rv_idx | %8d | %8d\n", testcases[i].ra_dl_tx.tb[0].rv, testcases[i].ra_dl_rx.tb[0].rv); printf(" ndi | %8d | %8d\n", testcases[i].ra_dl_tx.tb[0].ndi, testcases[i].ra_dl_rx.tb[0].ndi); printf(" mcs_idx_1 | %8d | %8d\n", testcases[i].ra_dl_tx.tb[1].mcs_idx, testcases[i].ra_dl_rx.tb[1].mcs_idx); printf(" rv_idx_1 | %8d | %8d\n", testcases[i].ra_dl_tx.tb[1].rv, testcases[i].ra_dl_rx.tb[1].rv); printf(" ndi_1 | %8d | %8d\n", testcases[i].ra_dl_tx.tb[1].ndi, testcases[i].ra_dl_rx.tb[1].ndi); printf(" tb_cw_swap | %8d | %8d\n", testcases[i].ra_dl_tx.tb_cw_swap, testcases[i].ra_dl_rx.tb_cw_swap); printf(" sram_id | %8d | %8d\n", testcases[i].ra_dl_tx.sram_id, testcases[i].ra_dl_rx.sram_id); printf(" pinfo | %8d | %8d\n", testcases[i].ra_dl_tx.pinfo, testcases[i].ra_dl_rx.pinfo); printf(" pconf | %8d | %8d\n", testcases[i].ra_dl_tx.pconf, testcases[i].ra_dl_rx.pconf); printf(" power_offset | %8d | %8d\n", testcases[i].ra_dl_tx.power_offset, testcases[i].ra_dl_rx.power_offset); printf(" tpc_pucch | %8d | %8d\n", testcases[i].ra_dl_tx.tpc_pucch, testcases[i].ra_dl_rx.tpc_pucch); goto quit; } } } ret = 0; quit: srslte_pdcch_free(&pdcch_tx); srslte_pdcch_free(&pdcch_rx); srslte_chest_dl_res_free(&chest_dl_res); srslte_regs_free(®s); for (i = 0; i < SRSLTE_MAX_PORTS; i++) { free(slot_symbols[i]); } if (ret) { printf("Error\n"); } else { printf("Ok\n"); } srslte_dft_exit(); exit(ret); }
int srslte_ue_dl_init(srslte_ue_dl_t *q, cf_t *in_buffer[SRSLTE_MAX_PORTS], uint32_t max_prb, uint32_t nof_rx_antennas) { int ret = SRSLTE_ERROR_INVALID_INPUTS; if (q != NULL && nof_rx_antennas <= SRSLTE_MAX_PORTS) { ret = SRSLTE_ERROR; bzero(q, sizeof(srslte_ue_dl_t)); q->pdsch_pkt_errors = 0; q->pdsch_pkts_total = 0; q->pmch_pkt_errors = 0; q->pmch_pkts_total = 0; q->pending_ul_dci_rnti = 0; q->sample_offset = 0; q->nof_rx_antennas = nof_rx_antennas; for (int j = 0; j < SRSLTE_MAX_PORTS; j++) { q->sf_symbols_m[j] = srslte_vec_malloc(MAX_SFLEN_RE * sizeof(cf_t)); if (!q->sf_symbols_m[j]) { perror("malloc"); goto clean_exit; } for (uint32_t i=0;i<SRSLTE_MAX_PORTS;i++) { q->ce_m[i][j] = srslte_vec_malloc(MAX_SFLEN_RE * sizeof(cf_t)); if (!q->ce_m[i][j]) { perror("malloc"); goto clean_exit; } bzero(q->ce_m[i][j], MAX_SFLEN_RE * sizeof(cf_t)); } } q->sf_symbols = q->sf_symbols_m[0]; for (int i=0;i<SRSLTE_MAX_PORTS;i++) { q->ce[i] = q->ce_m[i][0]; } for (int i = 0; i < nof_rx_antennas; i++) { if (srslte_ofdm_rx_init(&q->fft[i], SRSLTE_CP_NORM, in_buffer[i], q->sf_symbols_m[i], max_prb)) { fprintf(stderr, "Error initiating FFT\n"); goto clean_exit; } } if (srslte_ofdm_rx_init_mbsfn(&q->fft_mbsfn, SRSLTE_CP_EXT, in_buffer[0], q->sf_symbols_m[0], max_prb)) { fprintf(stderr, "Error initiating FFT for MBSFN subframes \n"); goto clean_exit; } srslte_ofdm_set_non_mbsfn_region(&q->fft_mbsfn, 2); // Set a default to init if (srslte_chest_dl_init(&q->chest, max_prb)) { fprintf(stderr, "Error initiating channel estimator\n"); goto clean_exit; } if (srslte_pcfich_init(&q->pcfich, nof_rx_antennas)) { fprintf(stderr, "Error creating PCFICH object\n"); goto clean_exit; } if (srslte_phich_init(&q->phich, nof_rx_antennas)) { fprintf(stderr, "Error creating PHICH object\n"); goto clean_exit; } if (srslte_pdcch_init_ue(&q->pdcch, max_prb, nof_rx_antennas)) { fprintf(stderr, "Error creating PDCCH object\n"); goto clean_exit; } if (srslte_pdsch_init_ue(&q->pdsch, max_prb, nof_rx_antennas)) { fprintf(stderr, "Error creating PDSCH object\n"); goto clean_exit; } if (srslte_pmch_init_multi(&q->pmch, max_prb, nof_rx_antennas)) { fprintf(stderr, "Error creating PMCH object\n"); goto clean_exit; } for (int i = 0; i < SRSLTE_MAX_TB; i++) { q->softbuffers[i] = srslte_vec_malloc(sizeof(srslte_softbuffer_rx_t)); if (!q->softbuffers[i]) { fprintf(stderr, "Error allocating soft buffer\n"); goto clean_exit; } if (srslte_softbuffer_rx_init(q->softbuffers[i], max_prb)) { fprintf(stderr, "Error initiating soft buffer\n"); goto clean_exit; } } if (srslte_cfo_init(&q->sfo_correct, max_prb*SRSLTE_NRE)) { fprintf(stderr, "Error initiating SFO correct\n"); goto clean_exit; } srslte_cfo_set_tol(&q->sfo_correct, 1e-5f/q->fft[0].symbol_sz); ret = SRSLTE_SUCCESS; } else { fprintf(stderr, "Invalid parametres\n"); } clean_exit: if (ret == SRSLTE_ERROR) { srslte_ue_dl_free(q); } return ret; }