adding test files for pmch

master
yagoda 7 years ago
parent b1cbcec742
commit c1ef157afd

@ -0,0 +1,204 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsLTE library.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include "srslte/srslte.h"
char *input_file_name = NULL;
srslte_cell_t cell = {
100, // nof_prb
1, // nof_ports
1, // cell_id
SRSLTE_CP_EXT, // cyclic prefix
SRSLTE_PHICH_R_1, // PHICH resources
SRSLTE_PHICH_NORM // PHICH length
};
int flen;
uint32_t cfi = 2;
uint16_t rnti = SRSLTE_SIRNTI;
int max_frames = 150;
uint32_t sf_idx = 1;
uint8_t non_mbsfn_region = 2;
int mbsfn_area_id = 1;
srslte_dci_format_t dci_format = SRSLTE_DCI_FORMAT1A;
srslte_filesource_t fsrc;
srslte_ue_dl_t ue_dl;
cf_t *input_buffer[SRSLTE_MAX_PORTS];
void usage(char *prog) {
printf("Usage: %s [rovfcenmps] -i input_file\n", prog);
printf("\t-o DCI format [Default %s]\n", srslte_dci_format_string(dci_format));
printf("\t-c cell.id [Default %d]\n", cell.id);
printf("\t-s Start subframe_idx [Default %d]\n", sf_idx);
printf("\t-f cfi [Default %d]\n", cfi);
printf("\t-r rnti [Default 0x%x]\n",rnti);
printf("\t-p cell.nof_ports [Default %d]\n", cell.nof_ports);
printf("\t-n cell.nof_prb [Default %d]\n", cell.nof_prb);
printf("\t-M mbsfn_area_id [Default %d]\n", mbsfn_area_id);
printf("\t-e Set extended prefix [Default Normal]\n");
printf("\t-v [set srslte_verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "irovfcenmps")) != -1) {
switch(opt) {
case 'i':
input_file_name = argv[optind];
break;
case 'c':
cell.id = atoi(argv[optind]);
break;
case 's':
sf_idx = atoi(argv[optind]);
break;
case 'r':
rnti = strtoul(argv[optind], NULL, 0);
break;
case 'f':
cfi = atoi(argv[optind]);
break;
case 'n':
cell.nof_prb = atoi(argv[optind]);
break;
case 'p':
cell.nof_ports = atoi(argv[optind]);
break;
case 'M':
mbsfn_area_id = atoi(argv[optind]);
break;
case 'o':
dci_format = srslte_dci_format_from_string(argv[optind]);
if (dci_format == SRSLTE_DCI_NOF_FORMATS) {
fprintf(stderr, "Error unsupported format %s\n", argv[optind]);
exit(-1);
}
break;
case 'v':
srslte_verbose++;
break;
case 'e':
cell.cp = SRSLTE_CP_EXT;
break;
default:
usage(argv[0]);
exit(-1);
}
}
if (!input_file_name) {
usage(argv[0]);
exit(-1);
}
}
int base_init() {
if (srslte_filesource_init(&fsrc, input_file_name, SRSLTE_COMPLEX_FLOAT_BIN)) {
fprintf(stderr, "Error opening file %s\n", input_file_name);
exit(-1);
}
flen = 2 * (SRSLTE_SLOT_LEN(srslte_symbol_sz(cell.nof_prb)));
input_buffer[0] = malloc(flen * sizeof(cf_t));
if (!input_buffer[0]) {
perror("malloc");
exit(-1);
}
if (srslte_ue_dl_init(&ue_dl, cell.nof_prb, 1)) {
fprintf(stderr, "Error initializing UE DL\n");
return -1;
}
if (srslte_ue_dl_set_cell(&ue_dl, cell)) {
fprintf(stderr, "Error initializing UE DL\n");
return -1;
}
srslte_ue_dl_set_rnti(&ue_dl, rnti);
srslte_ue_dl_set_mbsfn_area_id(&ue_dl, mbsfn_area_id);
srslte_ue_dl_set_non_mbsfn_region(&ue_dl, non_mbsfn_region);
DEBUG("Memory init OK\n",0);
return 0;
}
void base_free() {
srslte_filesource_free(&fsrc);
srslte_ue_dl_free(&ue_dl);
free(input_buffer[0]);
}
int main(int argc, char **argv) {
int ret;
if (argc < 3) {
usage(argv[0]);
exit(-1);
}
parse_args(argc,argv);
if (base_init()) {
fprintf(stderr, "Error initializing memory\n");
exit(-1);
}
uint8_t *data[] = {malloc(100000)};
ret = -1;
srslte_filesource_read(&fsrc, input_buffer[0], flen);
INFO("Reading %d samples sub-frame %d\n", flen, sf_idx);
ret = srslte_ue_dl_decode_mbsfn(&ue_dl, input_buffer, data[0], sf_idx);
if(ret > 0) {
printf("PMCH Decoded OK!\n");
} else if (ret < 0) {
printf("Error decoding PMCH\n");
}
base_free();
free(data[0]);
if (ret > 0) {
exit(0);
} else {
exit(-1);
}
}

@ -0,0 +1,475 @@
/**
*
* \section COPYRIGHT
*
* Copyright 2013-2015 Software Radio Systems Limited
*
* \section LICENSE
*
* This file is part of the srsLTE library.
*
* srsLTE is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsLTE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <srslte/phy/phch/ra.h>
#include "srslte/srslte.h"
// Enable to measure execution time
#define DO_OFDM
#ifdef DO_OFDM
#define NOF_CE_SYMBOLS SRSLTE_SF_LEN_PRB(cell.nof_prb)
#else
#define NOF_CE_SYMBOLS SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp)
#endif
srslte_cell_t cell = {
100, // nof_prb
1, // nof_ports
1, // cell_id
SRSLTE_CP_EXT, // cyclic prefix
SRSLTE_PHICH_NORM, // PHICH length
SRSLTE_PHICH_R_1_6 // PHICH resources
};
char mimo_type_str [32] = "single";
srslte_mimo_type_t mimo_type = SRSLTE_MIMO_TYPE_SINGLE_ANTENNA;
uint32_t cfi = 2;
uint32_t mcs_idx = 2;
uint32_t subframe = 1;
int rv_idx[SRSLTE_MAX_CODEWORDS] = {0, 1};
uint16_t rnti = 1234;
uint32_t nof_rx_antennas = 1;
uint32_t pmi = 0;
char *input_file = NULL;
uint32_t mbsfn_area_id = 1;
uint32_t non_mbsfn_region = 2;
void usage(char *prog) {
printf("Usage: %s [fmMcsrtRFpnwav] \n", prog);
printf("\t-f read signal from file [Default generate it with pdsch_encode()]\n");
printf("\t-m MCS [Default %d]\n", mcs_idx);
printf("\t-M mbsfn area id [Default %d]\n", mbsfn_area_id);
printf("\t-N non mbsfn region [Default %d]\n", non_mbsfn_region);
printf("\t-c cell id [Default %d]\n", cell.id);
printf("\t-s subframe [Default %d]\n", subframe);
printf("\t-r rv_idx [Default %d]\n", rv_idx[0]);
printf("\t-R rnti [Default %d]\n", rnti);
printf("\t-F cfi [Default %d]\n", cfi);
printf("\t-n cell.nof_prb [Default %d]\n", cell.nof_prb);
printf("\t-a nof_rx_antennas [Default %d]\n", nof_rx_antennas);
printf("\t-v [set srslte_verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "fmMcsrtRFpnavx")) != -1) {
switch(opt) {
case 'f':
input_file = argv[optind];
break;
case 'm':
mcs_idx = (uint32_t) atoi(argv[optind]);
break;
case 's':
subframe = atoi(argv[optind]);
break;
case 'r':
rv_idx[0] = (uint32_t) atoi(argv[optind]);
break;
case 'R':
rnti = atoi(argv[optind]);
break;
case 'F':
cfi = atoi(argv[optind]);
break;
case 'x':
strncpy(mimo_type_str, argv[optind], 32);
break;
case 'p':
pmi = (uint32_t) atoi(argv[optind]);
break;
case 'n':
cell.nof_prb = atoi(argv[optind]);
break;
case 'c':
cell.id = atoi(argv[optind]);
break;
case 'a':
nof_rx_antennas = (uint32_t) atoi(argv[optind]);
break;
case 'v':
srslte_verbose++;
break;
default:
usage(argv[0]);
exit(-1);
}
}
}
static uint8_t *data_tx[SRSLTE_MAX_CODEWORDS] = {NULL};
static uint8_t *data_rx[SRSLTE_MAX_CODEWORDS] = {NULL};
cf_t *ce[SRSLTE_MAX_PORTS][SRSLTE_MAX_PORTS];
srslte_softbuffer_rx_t *softbuffers_rx[SRSLTE_MAX_CODEWORDS];
srslte_ra_dl_grant_t grant;
#ifdef DO_OFDM
cf_t *tx_sf_symbols[SRSLTE_MAX_PORTS];
cf_t *rx_sf_symbols[SRSLTE_MAX_PORTS];
#endif /* DO_OFDM */
cf_t *tx_slot_symbols[SRSLTE_MAX_PORTS];
cf_t *rx_slot_symbols[SRSLTE_MAX_PORTS];
srslte_pmch_t pmch_tx, pmch_rx;
srslte_pdsch_cfg_t pmch_cfg;
srslte_ofdm_t ifft_mbsfn, fft_mbsfn;
int main(int argc, char **argv) {
uint32_t i, j, k;
int ret = -1;
struct timeval t[3];
srslte_softbuffer_tx_t *softbuffers_tx[SRSLTE_MAX_CODEWORDS];
int M=1;
parse_args(argc,argv);
/* Initialise to zeros */
bzero(&pmch_tx, sizeof(srslte_pdsch_t));
bzero(&pmch_rx, sizeof(srslte_pdsch_t));
bzero(&pmch_cfg, sizeof(srslte_pdsch_cfg_t));
bzero(ce, sizeof(cf_t*)*SRSLTE_MAX_PORTS);
bzero(tx_slot_symbols, sizeof(cf_t*)*SRSLTE_MAX_PORTS);
bzero(rx_slot_symbols, sizeof(cf_t*)*SRSLTE_MAX_PORTS);
cell.nof_ports = 1;
srslte_ra_dl_dci_t dci;
bzero(&dci, sizeof(srslte_ra_dl_dci_t));
dci.type0_alloc.rbg_bitmask = 0xffffffff;
/* If transport block 0 is enabled */
grant.tb_en[0] = true;
grant.tb_en[1] = false;
grant.nof_tb = 1;
grant.mcs[0].idx = mcs_idx;
grant.nof_prb = cell.nof_prb;
grant.sf_type = SRSLTE_SF_MBSFN;
srslte_dl_fill_ra_mcs(&grant.mcs[0], cell.nof_prb);
grant.Qm[0] = srslte_mod_bits_x_symbol(grant.mcs[0].mod);
for(int i = 0; i < 2; i++){
for(int j = 0; j < grant.nof_prb; j++){
grant.prb_idx[i][j] = true;
}
}
#ifdef DO_OFDM
if (srslte_ofdm_tx_init_mbsfn(&ifft_mbsfn, SRSLTE_CP_EXT, cell.nof_prb)) {
fprintf(stderr, "Error creating iFFT object\n");
exit(-1);
}
if (srslte_ofdm_rx_init_mbsfn(&fft_mbsfn, SRSLTE_CP_EXT, cell.nof_prb)) {
fprintf(stderr, "Error creating iFFT object\n");
exit(-1);
}
srslte_ofdm_set_non_mbsfn_region(&ifft_mbsfn, non_mbsfn_region);
srslte_ofdm_set_non_mbsfn_region(&fft_mbsfn, non_mbsfn_region);
srslte_ofdm_set_normalize(&ifft_mbsfn, true);
srslte_ofdm_set_normalize(&fft_mbsfn, true);
for (i = 0; i < cell.nof_ports; i++) {
tx_sf_symbols[i] = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
}
for (i = 0; i < nof_rx_antennas; i++) {
rx_sf_symbols[i] = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_PRB(cell.nof_prb));
}
#endif /* DO_OFDM */
/* Configure PDSCH */
if (srslte_pmch_cfg(&pmch_cfg, cell, &grant, cfi, subframe)) {
fprintf(stderr, "Error configuring PMCH\n");
exit(-1);
}
/* init memory */
for (i=0;i<SRSLTE_MAX_PORTS;i++) {
for (j = 0; j < SRSLTE_MAX_PORTS; j++) {
ce[i][j] = srslte_vec_malloc(sizeof(cf_t) * NOF_CE_SYMBOLS);
if (!ce[i]) {
perror("srslte_vec_malloc");
goto quit;
}
for (k = 0; k < NOF_CE_SYMBOLS; k++) {
ce[i][j][k] = (i == j) ? 1.0f : 0.0f;
}
}
rx_slot_symbols[i] = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp));
if (!rx_slot_symbols[i]) {
perror("srslte_vec_malloc");
goto quit;
}
}
for (int i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
if (grant.tb_en[i]) {
data_tx[i] = srslte_vec_malloc(sizeof(uint8_t) * grant.mcs[i].tbs);
if (!data_tx[i]) {
perror("srslte_vec_malloc");
goto quit;
}
bzero(data_tx[i], sizeof(uint8_t) * grant.mcs[i].tbs);
data_rx[i] = srslte_vec_malloc(sizeof(uint8_t) * grant.mcs[i].tbs);
if (!data_rx[i]) {
perror("srslte_vec_malloc");
goto quit;
}
bzero(data_rx[i], sizeof(uint8_t) * grant.mcs[i].tbs);
}
}
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
softbuffers_rx[i] = calloc(sizeof(srslte_softbuffer_rx_t), 1);
if (!softbuffers_rx[i]) {
fprintf(stderr, "Error allocating RX soft buffer\n");
goto quit;
}
if (srslte_softbuffer_rx_init(softbuffers_rx[i], cell.nof_prb)) {
fprintf(stderr, "Error initiating RX soft buffer\n");
goto quit;
}
}
if (srslte_pmch_cfg(&pmch_cfg, cell, &grant, cfi, subframe)) {
fprintf(stderr, "Error configuring PMCH\n");
exit(-1);
}
INFO(" Global:\n");
INFO(" nof_prb=%d\n", cell.nof_prb);
INFO(" nof_ports=%d\n", cell.nof_ports);
INFO(" id=%d\n", cell.id);
INFO(" cp=%s\n", srslte_cp_string(cell.cp));
INFO(" phich_length=%d\n", (int) cell.phich_length);
INFO(" phich_resources=%d\n", (int) cell.phich_resources);
INFO(" nof_prb=%d\n", pmch_cfg.grant.nof_prb);
INFO(" sf_idx=%d\n", pmch_cfg.sf_idx);
INFO(" mimo_type=%s\n", srslte_mimotype2str(pmch_cfg.mimo_type));
INFO(" nof_layers=%d\n", pmch_cfg.nof_layers);
INFO(" nof_tb=%d\n", SRSLTE_RA_DL_GRANT_NOF_TB(&pmch_cfg.grant));
INFO(" Qm=%d\n", pmch_cfg.grant.Qm[0]);
INFO(" mcs.idx=0x%X\n", pmch_cfg.grant.mcs[0].idx);
INFO(" mcs.tbs=%d\n", pmch_cfg.grant.mcs[0].tbs);
INFO(" mcs.mod=%s\n", srslte_mod_string(pmch_cfg.grant.mcs[0].mod));
INFO(" rv=%d\n", pmch_cfg.rv[0]);
INFO(" lstart=%d\n", pmch_cfg.nbits[0].lstart);
INFO(" nof_bits=%d\n", pmch_cfg.nbits[0].nof_bits);
INFO(" nof_re=%d\n", pmch_cfg.nbits[0].nof_re);
INFO(" nof_symb=%d\n", pmch_cfg.nbits[0].nof_symb);
if (srslte_pmch_init(&pmch_tx, cell.nof_prb)) {
fprintf(stderr, "Error creating PMCH object\n");
}
srslte_pmch_set_area_id(&pmch_tx, mbsfn_area_id);
if (srslte_pmch_init(&pmch_rx, cell.nof_prb)) {
fprintf(stderr, "Error creating PMCH object\n");
}
srslte_pmch_set_area_id(&pmch_rx, mbsfn_area_id);
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
softbuffers_tx[i] = calloc(sizeof(srslte_softbuffer_tx_t), 1);
if (!softbuffers_tx[i]) {
fprintf(stderr, "Error allocating TX soft buffer\n");
}
if (srslte_softbuffer_tx_init(softbuffers_tx[i], cell.nof_prb)) {
fprintf(stderr, "Error initiating TX soft buffer\n");
goto quit;
}
}
for (i = 0; i < cell.nof_ports; i++) {
tx_slot_symbols[i] = calloc(SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp), sizeof(cf_t));
if (!tx_slot_symbols[i]) {
perror("srslte_vec_malloc");
goto quit;
}
}
for (int tb = 0; tb < SRSLTE_MAX_CODEWORDS; tb++) {
if (grant.tb_en[tb]) {
for (int byte = 0; byte < grant.mcs[tb].tbs / 8; byte++) {
data_tx[tb][byte] = (uint8_t) (rand() % 256);
}
}
}
if (srslte_pmch_encode(&pmch_tx, &pmch_cfg, softbuffers_tx[0], data_tx[0], mbsfn_area_id, tx_slot_symbols)) {
fprintf(stderr, "Error encoding PDSCH\n");
exit(-1);
}
gettimeofday(&t[2], NULL);
get_time_interval(t);
printf("ENCODED in %.2f (PHY bitrate=%.2f Mbps. Processing bitrate=%.2f Mbps)\n",
(float) t[0].tv_usec/M, (float) (grant.mcs[0].tbs + grant.mcs[1].tbs)/1000.0f,
(float) (grant.mcs[0].tbs + grant.mcs[1].tbs)*M/t[0].tv_usec);
#ifdef DO_OFDM
for (i = 0; i < cell.nof_ports; i++) {
/* For each Tx antenna modulate OFDM */
srslte_ofdm_tx_sf(&ifft_mbsfn, tx_slot_symbols[i], tx_sf_symbols[i]);
}
/* combine outputs */
for (j = 0; j < nof_rx_antennas; j++) {
for (k = 0; k < NOF_CE_SYMBOLS; k++) {
rx_sf_symbols[j][k] = 0.0f;
for (i = 0; i < cell.nof_ports; i++) {
rx_sf_symbols[j][k] += tx_sf_symbols[i][k] * ce[i][j][k];
}
}
}
#else
/* combine outputs */
for (j = 0; j < nof_rx_antennas; j++) {
for (k = 0; k < SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp); k++) {
rx_slot_symbols[j][k] = 0.0f;
for (i = 0; i < cell.nof_ports; i++) {
rx_slot_symbols[j][k] += tx_slot_symbols[i][k] * ce[i][j][k];
}
}
}
#endif
int r=0;
gettimeofday(&t[1], NULL);
#ifdef DO_OFDM
/* For each Rx antenna demodulate OFDM */
for (i = 0; i < nof_rx_antennas; i++) {
srslte_ofdm_rx_sf(&fft_mbsfn, tx_sf_symbols[i], rx_slot_symbols[i]);
}
#endif
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
if (grant.tb_en[i]) {
srslte_softbuffer_rx_reset_tbs(softbuffers_rx[i], (uint32_t) grant.mcs[i].tbs);
}
}
r = srslte_pmch_decode(&pmch_rx, &pmch_cfg, softbuffers_rx[0],rx_slot_symbols[0], ce[0],0,mbsfn_area_id, data_rx[0]);
gettimeofday(&t[2], NULL);
get_time_interval(t);
printf("DECODED %s in %.2f (PHY bitrate=%.2f Mbps. Processing bitrate=%.2f Mbps)\n", r?"Error":"OK",
(float) t[0].tv_usec/M, (float) (grant.mcs[0].tbs + grant.mcs[1].tbs)/1000.0f,
(float) (grant.mcs[0].tbs + grant.mcs[1].tbs)*M/t[0].tv_usec);
/* If there is an error in PDSCH decode */
if (r) {
ret = -1;
goto quit;
}
/* Check Tx and Rx bytes */
for (int tb = 0; tb < SRSLTE_MAX_CODEWORDS; tb++) {
if (grant.tb_en[tb]) {
for (int byte = 0; byte < grant.mcs[tb].tbs / 8; byte++) {
if (data_tx[tb][byte] != data_rx[tb][byte]) {
ERROR("Found BYTE error in TB %d (%02X != %02X), quiting...", tb, data_tx[tb][byte], data_rx[tb][byte]);
ret = SRSLTE_ERROR;
goto quit;
}
}
}
}
ret = SRSLTE_SUCCESS;
quit:
srslte_pmch_free(&pmch_tx);
srslte_pmch_free(&pmch_rx);
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
srslte_softbuffer_tx_free(softbuffers_tx[i]);
if (softbuffers_tx[i]) {
free(softbuffers_tx[i]);
}
srslte_softbuffer_rx_free(softbuffers_rx[i]);
if (softbuffers_rx[i]) {
free(softbuffers_rx[i]);
}
if (data_tx[i]) {
free(data_tx[i]);
}
if (data_rx[i]) {
free(data_rx[i]);
}
}
for (i=0;i<SRSLTE_MAX_PORTS;i++) {
for (j = 0; j < SRSLTE_MAX_PORTS; j++) {
if (ce[i][j]) {
free(ce[i][j]);
}
}
if (tx_slot_symbols[i]) {
free(tx_slot_symbols[i]);
}
if (rx_slot_symbols[i]) {
free(rx_slot_symbols[i]);
}
}
if (ret) {
printf("Error\n");
} else {
printf("Ok\n");
}
exit(ret);
}
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