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@ -20,7 +20,6 @@
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*/
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#include <stdio.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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@ -30,18 +29,15 @@
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#include <srslte/phy/utils/debug.h>
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#include <srslte/phy/utils/vector.h>
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int32_t N_sl_id = 168;
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srslte_cp_t cp = SRSLTE_CP_NORM;
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uint32_t nof_prb = 6;
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srslte_sl_tm_t tm = SRSLTE_SIDELINK_TM2;
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srslte_cell_sl_t cell = {.nof_prb = 6, .N_sl_id = 168, .tm = SRSLTE_SIDELINK_TM2, .cp = SRSLTE_CP_NORM};
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void usage(char* prog)
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{
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printf("Usage: %s [cdeipt]\n", prog);
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printf("\t-p nof_prb [Default %d]\n", nof_prb);
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printf("\t-p nof_prb [Default %d]\n", cell.nof_prb);
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printf("\t-e extended CP [Default normal]\n");
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printf("\t-c N_sl_id [Default %d]\n", N_sl_id);
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printf("\t-t Sidelink transmission mode {1,2,3,4} [Default %d]\n", (tm + 1));
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printf("\t-c N_sl_id [Default %d]\n", cell.N_sl_id);
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printf("\t-t Sidelink transmission mode {1,2,3,4} [Default %d]\n", (cell.tm + 1));
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printf("\t-v [set srslte_verbose to debug, default none]\n");
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}
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@ -51,27 +47,27 @@ void parse_args(int argc, char** argv)
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while ((opt = getopt(argc, argv, "ceiptv")) != -1) {
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switch (opt) {
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case 'c':
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N_sl_id = (int32_t)strtol(argv[optind], NULL, 10);
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cell.N_sl_id = (int32_t)strtol(argv[optind], NULL, 10);
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break;
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case 'e':
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cp = SRSLTE_CP_EXT;
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cell.cp = SRSLTE_CP_EXT;
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break;
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case 'p':
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nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
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cell.nof_prb = (uint32_t)strtol(argv[optind], NULL, 10);
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break;
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case 't':
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switch (strtol(argv[optind], NULL, 10)) {
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case 1:
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tm = SRSLTE_SIDELINK_TM1;
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cell.tm = SRSLTE_SIDELINK_TM1;
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break;
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case 2:
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tm = SRSLTE_SIDELINK_TM2;
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cell.tm = SRSLTE_SIDELINK_TM2;
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break;
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case 3:
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tm = SRSLTE_SIDELINK_TM3;
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cell.tm = SRSLTE_SIDELINK_TM3;
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break;
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case 4:
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tm = SRSLTE_SIDELINK_TM4;
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cell.tm = SRSLTE_SIDELINK_TM4;
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break;
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default:
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usage(argv[0]);
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@ -87,6 +83,11 @@ void parse_args(int argc, char** argv)
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exit(-1);
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}
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}
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if (SRSLTE_CP_ISEXT(cell.cp) && cell.tm >= SRSLTE_SIDELINK_TM3) {
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ERROR("Selected TM does not support extended CP");
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usage(argv[0]);
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exit(-1);
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}
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}
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int main(int argc, char** argv)
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@ -95,17 +96,17 @@ int main(int argc, char** argv)
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parse_args(argc, argv);
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uint32_t sf_n_re = SRSLTE_SF_LEN_RE(nof_prb, cp);
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uint32_t sf_n_re = SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp);
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cf_t* sf_buffer = srslte_vec_cf_malloc(sf_n_re);
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// MIB-SL
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srslte_mib_sl_t mib_sl;
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srslte_mib_sl_init(&mib_sl, tm);
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srslte_mib_sl_set(&mib_sl, nof_prb, 0, 128, 4, false);
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srslte_mib_sl_init(&mib_sl, cell.tm);
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srslte_mib_sl_set(&mib_sl, cell.nof_prb, 0, 128, 4, false);
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// PSBCH
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srslte_psbch_t psbch;
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if (srslte_psbch_init(&psbch, nof_prb, N_sl_id, tm, SRSLTE_CP_NORM) != SRSLTE_SUCCESS) {
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if (srslte_psbch_init(&psbch, cell.nof_prb, cell.N_sl_id, cell.tm, cell.cp) != SRSLTE_SUCCESS) {
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ERROR("Error in psbch init\n");
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return SRSLTE_ERROR;
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}
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@ -132,16 +133,22 @@ int main(int argc, char** argv)
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srslte_mib_sl_printf(stdout, &mib_sl);
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// check decoded bandwidth matches user configured value
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if (srslte_mib_sl_bandwith_to_prb[mib_sl.sl_bandwidth_r12] == nof_prb) {
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if (srslte_mib_sl_bandwith_to_prb[mib_sl.sl_bandwidth_r12] == cell.nof_prb) {
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ret = SRSLTE_SUCCESS;
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}
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}
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// Sanity check (less REs are transmitted than mapped)
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if (tm <= SRSLTE_SIDELINK_TM2) {
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if (cell.tm <= SRSLTE_SIDELINK_TM2) {
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if (SRSLTE_CP_ISNORM(cell.cp)) {
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// TM1 and TM2 have always 576 mapped PSBCH resource elements of which 504 are transmitted
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TESTASSERT(psbch.nof_data_re == 576);
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TESTASSERT(psbch.nof_tx_re == 504);
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} else {
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// TM1 and TM2 with extended cp have always 432 mapped PSBCH resource elements of which 360 are transmitted
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TESTASSERT(psbch.nof_data_re == 432);
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TESTASSERT(psbch.nof_tx_re == 360);
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}
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} else {
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// TM3 and TM4 have always 504 mapped PSBCH resource elements of which 432 are transmitted
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TESTASSERT(psbch.nof_data_re == 504);
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luis_pereira87
5 years ago
committed by
Andre Puschmann