Esempi in C++ (Cpp) per srslte_symbol_sz_power2

Esempio n. 1

File: pbch_file_test.c Progetto: Intellifora/srsLTE

int base_init() {
  int i;

  if (srslte_filesource_init(&fsrc, input_file_name, SRSLTE_COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  input_buffer = malloc(FLEN * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<cell.nof_ports;i++) {
    ce[i] = malloc(SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }
  
  if (!srslte_cell_isvalid(&cell)) {
    fprintf(stderr, "Invalid cell properties\n");
    return -1;
  }

  if (srslte_chest_dl_init(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (srslte_ofdm_init_(&fft, cell.cp, srslte_symbol_sz_power2(cell.nof_prb), cell.nof_prb, SRSLTE_DFT_FORWARD)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (srslte_pbch_init(&pbch, cell)) {
    fprintf(stderr, "Error initiating PBCH\n");
    return -1;
  }

  DEBUG("Memory init OK\n",0);
  return 0;
}

Esempio n. 2

File: phy_common.c Progetto: srsLTE/srsLTE

int srslte_symbol_sz(uint32_t nof_prb) {
  if (nof_prb<=0) {
    return SRSLTE_ERROR;
  }
  if (!use_standard_rates) {
    if (nof_prb<=6) {
      return 128;
    } else if (nof_prb<=15) {
      return 256;
    } else if (nof_prb<=25) {
      return 384;
    } else if (nof_prb<=50) {
      return 768;
    } else if (nof_prb<=75) {
      return 1024;
    } else if (nof_prb<=110) {
      return 1536;
    } else {
      return SRSLTE_ERROR;
    }
  } else {
    return srslte_symbol_sz_power2(nof_prb);
  }
}

Esempio n. 3

File: pcfich_file_test.c Progetto: stray109/srsLTE

int base_init() {
  int i;
  
  if (srslte_filesource_init(&fsrc, input_file_name, SRSLTE_COMPLEX_FLOAT_BIN)) {
    fprintf(stderr, "Error opening file %s\n", input_file_name);
    exit(-1);
  }

  if (matlab_file_name) {
    fmatlab = fopen(matlab_file_name, "w");
    if (!fmatlab) {
      perror("fopen");
      return -1;
    }
  } else {
    fmatlab = NULL;
  }

  flen = SRSLTE_SF_LEN(srslte_symbol_sz(cell.nof_prb));

  input_buffer = malloc(flen * sizeof(cf_t));
  if (!input_buffer) {
    perror("malloc");
    exit(-1);
  }

  fft_buffer = malloc(SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
  if (!fft_buffer) {
    perror("malloc");
    return -1;
  }

  for (i=0;i<SRSLTE_MAX_PORTS;i++) {
    ce[i] = malloc(SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp) * sizeof(cf_t));
    if (!ce[i]) {
      perror("malloc");
      return -1;
    }
  }
  
  if (srslte_chest_dl_init(&chest, cell)) {
    fprintf(stderr, "Error initializing equalizer\n");
    return -1;
  }

  if (srslte_ofdm_init_(&fft, cell.cp, srslte_symbol_sz_power2(cell.nof_prb), cell.nof_prb, SRSLTE_DFT_FORWARD)) {
    fprintf(stderr, "Error initializing FFT\n");
    return -1;
  }

  if (srslte_regs_init(&regs, cell)) {
    fprintf(stderr, "Error initiating REGs\n");
    return -1;
  }

  if (srslte_pcfich_init(&pcfich, &regs, cell)) {
    fprintf(stderr, "Error creating PBCH object\n");
    return -1;
  }

  DEBUG("Memory init OK\n",0);
  return 0;
}