void base_free() {
int i;
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
srslte_softbuffer_tx_free(softbuffers[i]);
if (softbuffers[i]) {
free(softbuffers[i]);
}
}
srslte_pdsch_free(&pdsch);
srslte_pdcch_free(&pdcch);
srslte_regs_free(®s);
srslte_pbch_free(&pbch);
if(mbsfn_area_id > -1){
srslte_pmch_free(&pmch);
}
srslte_ofdm_tx_free(&ifft_mbsfn);
for (i = 0; i < cell.nof_ports; i++) {
srslte_ofdm_tx_free(&ifft[i]);
}
for (i = 0; i < SRSLTE_MAX_CODEWORDS; i++) {
if (data[i]) {
free(data[i]);
}
}
for (i = 0; i < SRSLTE_MAX_PORTS; i++) {
if (sf_buffer[i]) {
free(sf_buffer[i]);
}
if (output_buffer[i]) {
free(output_buffer[i]);
}
}
if (output_file_name) {
if (!null_file_sink) {
srslte_filesink_free(&fsink);
}
} else {
#ifndef DISABLE_RF
srslte_rf_close(&rf);
#endif
}
if (net_port > 0) {
srslte_netsource_free(&net_source);
sem_close(&net_sem);
}
}
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_pmch_t));
bzero(&pmch_rx, sizeof(srslte_pmch_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.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;
}
}
/* 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][j]) {
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 (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 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;
}
}
#ifdef DO_OFDM
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));
if (srslte_ofdm_tx_init_mbsfn(&ifft_mbsfn[i], SRSLTE_CP_EXT, tx_slot_symbols[i], tx_sf_symbols[i], cell.nof_prb)) {
fprintf(stderr, "Error creating iFFT object\n");
exit(-1);
}
srslte_ofdm_set_non_mbsfn_region(&ifft_mbsfn[i], non_mbsfn_region);
srslte_ofdm_set_normalize(&ifft_mbsfn[i], true);
}
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));
if (srslte_ofdm_rx_init_mbsfn(&fft_mbsfn[i], SRSLTE_CP_EXT, rx_sf_symbols[i], rx_slot_symbols[i], cell.nof_prb)) {
fprintf(stderr, "Error creating iFFT object\n");
exit(-1);
}
srslte_ofdm_set_non_mbsfn_region(&fft_mbsfn[i], non_mbsfn_region);
srslte_ofdm_set_normalize(&fft_mbsfn[i], true);
}
#endif /* DO_OFDM */
/* Configure PDSCH */
if (srslte_pmch_cfg(&pmch_cfg, cell, &grant, cfi, subframe)) {
fprintf(stderr, "Error configuring PMCH\n");
exit(-1);
}
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 (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[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[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);
}
int main(int argc, char **argv) {
srslte_pdsch_t pdsch;
uint32_t i, j;
uint8_t *data = NULL;
cf_t *ce[SRSLTE_MAX_PORTS];
cf_t *slot_symbols[SRSLTE_MAX_PORTS];
int ret = -1;
struct timeval t[3];
srslte_pdsch_cfg_t pdsch_cfg;
srslte_softbuffer_tx_t softbuffer_tx;
srslte_softbuffer_rx_t softbuffer_rx;
uint32_t rv;
parse_args(argc,argv);
bzero(&pdsch, sizeof(srslte_pdsch_t));
bzero(&pdsch_cfg, sizeof(srslte_pdsch_cfg_t));
bzero(ce, sizeof(cf_t*)*SRSLTE_MAX_PORTS);
bzero(slot_symbols, sizeof(cf_t*)*SRSLTE_MAX_PORTS);
bzero(&softbuffer_rx, sizeof(srslte_softbuffer_rx_t));
bzero(&softbuffer_tx, sizeof(srslte_softbuffer_tx_t));
srslte_ra_dl_grant_t grant;
grant.mcs.tbs = tbs;
grant.mcs.mod = modulation;
grant.Qm = srslte_mod_bits_x_symbol(grant.mcs.mod);
grant.nof_prb = cell.nof_prb; // Allocate all PRB
for (i=0;i<grant.nof_prb;i++) {
grant.prb_idx[0][i] = true;
}
memcpy(&grant.prb_idx[1], &grant.prb_idx[0], SRSLTE_MAX_PRB * sizeof(bool));
/* Configure PDSCH */
if (srslte_pdsch_cfg(&pdsch_cfg, cell, &grant, cfi, subframe, 1234, 0)) {
fprintf(stderr, "Error configuring PDSCH\n");
exit(-1);
}
/* init memory */
for (i=0;i<cell.nof_ports;i++) {
ce[i] = malloc(sizeof(cf_t) * SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp));
if (!ce[i]) {
perror("malloc");
goto quit;
}
for (j=0;j<SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp);j++) {
ce[i][j] = 1;
}
slot_symbols[i] = calloc(sizeof(cf_t) , SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp));
if (!slot_symbols[i]) {
perror("malloc");
goto quit;
}
}
data = malloc(sizeof(uint8_t) * tbs/8);
if (!data) {
perror("malloc");
goto quit;
}
if (srslte_pdsch_init(&pdsch, cell)) {
fprintf(stderr, "Error creating PDSCH object\n");
goto quit;
}
srslte_pdsch_set_rnti(&pdsch, 1234);
if (srslte_softbuffer_tx_init(&softbuffer_tx, cell.nof_prb)) {
fprintf(stderr, "Error initiating TX soft buffer\n");
goto quit;
}
if (srslte_softbuffer_rx_init(&softbuffer_rx, cell.nof_prb)) {
fprintf(stderr, "Error initiating RX soft buffer\n");
goto quit;
}
if (SRSLTE_VERBOSE_ISNONE()) {
printf("Decoding TBS: %d\r",grant.mcs.tbs);
}
for (i=0;i<grant.mcs.tbs/8;i++) {
data[i] = rand()%256;
}
for (rv=0;rv<=rv_idx;rv++) {
pdsch_cfg.rv = rv;
if (srslte_pdsch_encode(&pdsch, &pdsch_cfg, &softbuffer_tx, data, slot_symbols)) {
fprintf(stderr, "Error encoding PDSCH\n");
goto quit;
}
/* combine outputs */
for (i=0;i<cell.nof_ports;i++) {
for (j=0;j<SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp);j++) {
if (i > 0) {
slot_symbols[0][j] += slot_symbols[i][j];
}
ce[i][j] = 1;
}
}
gettimeofday(&t[1], NULL);
int r = srslte_pdsch_decode(&pdsch, &pdsch_cfg, &softbuffer_rx, slot_symbols[0], ce, 0, data);
gettimeofday(&t[2], NULL);
get_time_interval(t);
if (r) {
printf("Error decoding TBS: %d\n", grant.mcs.tbs);
ret = -1;
goto quit;
} else {
printf("DECODED OK in %d:%d (%.2f Mbps)\n",
(int) t[0].tv_sec, (int) t[0].tv_usec, (float) grant.mcs.tbs/t[0].tv_usec);
}
}
ret = 0;
quit:
srslte_pdsch_free(&pdsch);
srslte_softbuffer_tx_free(&softbuffer_tx);
srslte_softbuffer_rx_free(&softbuffer_rx);
for (i=0;i<cell.nof_ports;i++) {
if (ce[i]) {
free(ce[i]);
}
if (slot_symbols[i]) {
free(slot_symbols[i]);
}
}
if (data) {
free(data);
}
if (ret) {
printf("Error\n");
} else {
printf("Ok\n");
}
exit(ret);
}
/* the gateway function */
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
srslte_sch_t ulsch;
srslte_pusch_cfg_t cfg;
srslte_softbuffer_tx_t softbuffer;
srslte_uci_data_t uci_data;
bzero(&uci_data, sizeof(srslte_uci_data_t));
uint32_t rv;
if (nrhs < NOF_INPUTS) {
help();
return;
}
bzero(&cfg, sizeof(srslte_pusch_cfg_t));
if (srslte_sch_init(&ulsch)) {
mexErrMsgTxt("Error initiating ULSCH\n");
return;
}
srslte_cell_t cell;
cell.nof_prb = 100;
cell.id=1;
cell.cp=SRSLTE_CP_NORM;
if (srslte_softbuffer_tx_init(&softbuffer, cell.nof_prb)) {
mexErrMsgTxt("Error initiating HARQ\n");
return;
}
uint8_t *trblkin_bits = NULL;
cfg.grant.mcs.tbs = mexutils_read_uint8(TRBLKIN, &trblkin_bits);
uint8_t *trblkin = srslte_vec_malloc(cfg.grant.mcs.tbs/8);
srslte_bit_unpack_vector(trblkin_bits, trblkin, cfg.grant.mcs.tbs);
free(trblkin_bits);
uint8_t *tmp;
uci_data.uci_cqi_len = mexutils_read_uint8(CQI, &tmp);
memcpy(uci_data.uci_cqi, tmp, uci_data.uci_cqi_len);
free(tmp);
uci_data.uci_ri_len = mexutils_read_uint8(RI, &tmp);
if (uci_data.uci_ri_len > 0) {
uci_data.uci_ri = *tmp;
}
free(tmp);
uci_data.uci_ack_len = mexutils_read_uint8(ACK, &tmp);
if (uci_data.uci_ack_len > 0) {
uci_data.uci_ack = *tmp;
}
free(tmp);
mexPrintf("TRBL_len: %d, CQI_len: %d, ACK_len: %d, RI_len: %d\n", cfg.grant.mcs.tbs,
uci_data.uci_cqi_len, uci_data.uci_ack_len, uci_data.uci_ri_len);
if (mexutils_read_uint32_struct(PUSCHCFG, "RV", &rv)) {
mexErrMsgTxt("Field RV not found in pdsch config\n");
return;
}
float beta;
if (mexutils_read_float_struct(PUSCHCFG, "BetaCQI", &beta)) {
cfg.uci_cfg.I_offset_cqi = 7;
} else {
cfg.uci_cfg.I_offset_cqi = srslte_sch_find_Ioffset_cqi(beta);
}
if (mexutils_read_float_struct(PUSCHCFG, "BetaRI", &beta)) {
cfg.uci_cfg.I_offset_ri = 2;
} else {
cfg.uci_cfg.I_offset_ri = srslte_sch_find_Ioffset_ri(beta);
}
if (mexutils_read_float_struct(PUSCHCFG, "BetaACK", &beta)) {
cfg.uci_cfg.I_offset_ack = 0;
} else {
cfg.uci_cfg.I_offset_ack = srslte_sch_find_Ioffset_ack(beta);
}
char *mod_str = mexutils_get_char_struct(PUSCHCFG, "Modulation");
if (!strcmp(mod_str, "QPSK")) {
cfg.grant.mcs.mod = SRSLTE_MOD_QPSK;
} else if (!strcmp(mod_str, "16QAM")) {
cfg.grant.mcs.mod = SRSLTE_MOD_16QAM;
} else if (!strcmp(mod_str, "64QAM")) {
cfg.grant.mcs.mod = SRSLTE_MOD_64QAM;
} else {
mexErrMsgTxt("Unknown modulation\n");
return;
}
mxFree(mod_str);
float *prbset;
mxArray *p;
p = mxGetField(PUSCHCFG, 0, "PRBSet");
if (!p) {
mexErrMsgTxt("Error field PRBSet not found\n");
return;
}
uint32_t N_srs = 0;
mexutils_read_uint32_struct(PUSCHCFG, "Shortened", &N_srs);
cfg.grant.L_prb = mexutils_read_f(p, &prbset);
cfg.grant.n_prb[0] = prbset[0];
cfg.grant.n_prb[1] = prbset[0];
free(prbset);
cfg.grant.L_prb = mexutils_read_f(p, &prbset);
cfg.grant.n_prb[0] = prbset[0];
cfg.grant.n_prb[1] = prbset[0];
cfg.nbits.lstart = 0;
cfg.nbits.nof_symb = 2*(SRSLTE_CP_NSYMB(cell.cp)-1) - N_srs;
cfg.grant.M_sc = cfg.grant.L_prb*SRSLTE_NRE;
cfg.grant.M_sc_init = cfg.grant.M_sc; // FIXME: What should M_sc_init be?
cfg.nbits.nof_re = cfg.nbits.nof_symb*cfg.grant.M_sc;
cfg.grant.Qm = srslte_mod_bits_x_symbol(cfg.grant.mcs.mod);
cfg.nbits.nof_bits = cfg.nbits.nof_re * cfg.grant.Qm;
mexPrintf("Q_m: %d, NPRB: %d, RV: %d, Nsrs=%d\n", srslte_mod_bits_x_symbol(cfg.grant.mcs.mod), cfg.grant.L_prb, cfg.rv, N_srs);
mexPrintf("I_cqi: %d, I_ri: %d, I_ack=%d\n", cfg.uci_cfg.I_offset_cqi, cfg.uci_cfg.I_offset_ri, cfg.uci_cfg.I_offset_ack);
if (srslte_cbsegm(&cfg.cb_segm, cfg.grant.mcs.tbs)) {
mexErrMsgTxt("Error configuring HARQ process\n");
return;
}
uint8_t *q_bits = srslte_vec_malloc(cfg.nbits.nof_bits * sizeof(uint8_t));
if (!q_bits) {
return;
}
uint8_t *g_bits = srslte_vec_malloc(cfg.nbits.nof_bits * sizeof(uint8_t));
if (!g_bits) {
return;
}
if (srslte_ulsch_uci_encode(&ulsch, &cfg, &softbuffer, trblkin, uci_data, g_bits, q_bits))
{
mexErrMsgTxt("Error encoding TB\n");
return;
}
if (rv > 0) {
cfg.rv = rv;
if (srslte_ulsch_uci_encode(&ulsch, &cfg, &softbuffer, trblkin, uci_data, g_bits, q_bits)) {
mexErrMsgTxt("Error encoding TB\n");
return;
}
}
if (nlhs >= 1) {
mexutils_write_uint8(q_bits, &plhs[0], cfg.nbits.nof_bits, 1);
}
srslte_sch_free(&ulsch);
srslte_softbuffer_tx_free(&softbuffer);
free(trblkin);
free(g_bits);
free(q_bits);
return;
}
int main(int argc, char **argv) {
srslte_pusch_t pusch;
uint8_t *data = NULL;
cf_t *sf_symbols = NULL;
cf_t *ce = NULL;
int ret = -1;
struct timeval t[3];
srslte_pusch_cfg_t cfg;
srslte_softbuffer_tx_t softbuffer_tx;
srslte_softbuffer_rx_t softbuffer_rx;
parse_args(argc,argv);
bzero(&cfg, sizeof(srslte_pusch_cfg_t));
srslte_ra_ul_dci_t dci;
dci.freq_hop_fl = freq_hop;
if (riv < 0) {
dci.type2_alloc.L_crb = L_prb;
dci.type2_alloc.RB_start = n_prb;
} else {
dci.type2_alloc.riv = riv;
}
dci.mcs_idx = mcs_idx;
srslte_ra_ul_grant_t grant;
if (srslte_ra_ul_dci_to_grant(&dci, cell.nof_prb, 0, &grant, 0)) {
fprintf(stderr, "Error computing resource allocation\n");
return ret;
}
srslte_pusch_hopping_cfg_t ul_hopping;
ul_hopping.n_sb = 1;
ul_hopping.hopping_offset = 0;
ul_hopping.hop_mode = SRSLTE_PUSCH_HOP_MODE_INTER_SF;
if (srslte_pusch_init(&pusch, cell)) {
fprintf(stderr, "Error creating PDSCH object\n");
goto quit;
}
/* Configure PUSCH */
printf("Encoding rv_idx=%d\n",rv_idx);
srslte_uci_cfg_t uci_cfg;
uci_cfg.I_offset_cqi = 6;
uci_cfg.I_offset_ri = 2;
uci_cfg.I_offset_ack = 4;
if (srslte_pusch_cfg(&pusch, &cfg, &grant, &uci_cfg, &ul_hopping, NULL, subframe, 0, 0)) {
fprintf(stderr, "Error configuring PDSCH\n");
exit(-1);
}
srslte_pusch_set_rnti(&pusch, 1234);
srslte_uci_data_t uci_data_tx;
srslte_uci_data_t uci_data_rx;
bzero(&uci_data_tx, sizeof(srslte_uci_data_t));
uci_data_tx.uci_cqi_len = 4;
uci_data_tx.uci_ri_len = 0;
uci_data_tx.uci_ack_len = 0;
memcpy(&uci_data_rx, &uci_data_tx, sizeof(srslte_uci_data_t));
for (uint32_t i=0;i<20;i++) {
uci_data_tx.uci_cqi [i] = 1;
}
uci_data_tx.uci_ri = 1;
uci_data_tx.uci_ack = 1;
uint32_t nof_re = SRSLTE_NRE*cell.nof_prb*2*SRSLTE_CP_NSYMB(cell.cp);
sf_symbols = srslte_vec_malloc(sizeof(cf_t) * nof_re);
if (!sf_symbols) {
perror("malloc");
exit(-1);
}
data = srslte_vec_malloc(sizeof(uint8_t) * cfg.grant.mcs.tbs);
if (!data) {
perror("malloc");
exit(-1);
}
for (uint32_t i=0;i<cfg.grant.mcs.tbs/8;i++) {
data[i] = 1;
}
if (srslte_softbuffer_tx_init(&softbuffer_tx, 100)) {
fprintf(stderr, "Error initiating soft buffer\n");
goto quit;
}
if (srslte_softbuffer_rx_init(&softbuffer_rx, 100)) {
fprintf(stderr, "Error initiating soft buffer\n");
goto quit;
}
uint32_t ntrials = 100;
if (srslte_pusch_uci_encode(&pusch, &cfg, &softbuffer_tx, data, uci_data_tx, sf_symbols)) {
fprintf(stderr, "Error encoding TB\n");
exit(-1);
}
if (rv_idx > 0) {
cfg.rv = rv_idx;
if (srslte_pusch_uci_encode(&pusch, &cfg, &softbuffer_tx, data, uci_data_tx, sf_symbols)) {
fprintf(stderr, "Error encoding TB\n");
exit(-1);
}
}
ce = srslte_vec_malloc(sizeof(cf_t) * SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp));
if (!ce) {
perror("srslte_vec_malloc");
goto quit;
}
for (int j=0;j<SRSLTE_SF_LEN_RE(cell.nof_prb, cell.cp);j++) {
ce[j] = 1;
}
gettimeofday(&t[1], NULL);
int r = srslte_pusch_uci_decode(&pusch, &cfg, &softbuffer_rx, sf_symbols, ce, 0, data, &uci_data_rx);
gettimeofday(&t[2], NULL);
get_time_interval(t);
if (r) {
printf("Error decoding\n");
ret = -1;
} else {
ret = 0;
printf("DECODED OK in %d:%d (TBS: %d bits, TX: %.2f Mbps, Processing: %.2f Mbps)\n", (int) t[0].tv_sec,
(int) t[0].tv_usec/ntrials,
cfg.grant.mcs.tbs,
(float) cfg.grant.mcs.tbs/1000,
(float) cfg.grant.mcs.tbs/t[0].tv_usec*ntrials);
}
if (uci_data_tx.uci_ack_len) {
if (uci_data_tx.uci_ack != uci_data_rx.uci_ack) {
printf("UCI ACK bit error: %d != %d\n", uci_data_tx.uci_ack, uci_data_rx.uci_ack);
}
}
if (uci_data_tx.uci_ri_len) {
if (uci_data_tx.uci_ri != uci_data_rx.uci_ri) {
printf("UCI RI bit error: %d != %d\n", uci_data_tx.uci_ri, uci_data_rx.uci_ri);
}
}
if (uci_data_tx.uci_cqi_len) {
printf("cqi_tx=");
srslte_vec_fprint_b(stdout, uci_data_tx.uci_cqi, uci_data_tx.uci_cqi_len);
printf("cqi_rx=");
srslte_vec_fprint_b(stdout, uci_data_rx.uci_cqi, uci_data_rx.uci_cqi_len);
}
quit:
srslte_pusch_free(&pusch);
srslte_softbuffer_tx_free(&softbuffer_tx);
if (sf_symbols) {
free(sf_symbols);
}
if (data) {
free(data);
}
if (ce) {
free(ce);
}
if (ret) {
printf("Error\n");
} else {
printf("Ok\n");
}
exit(ret);
}
