int srslte_chest_ul_init(srslte_chest_ul_t *q, uint32_t max_prb)
{
int ret = SRSLTE_ERROR_INVALID_INPUTS;
if (q != NULL)
{
bzero(q, sizeof(srslte_chest_ul_t));
ret = srslte_refsignal_ul_init(&q->dmrs_signal, max_prb);
if (ret != SRSLTE_SUCCESS) {
fprintf(stderr, "Error initializing CSR signal (%d)\n",ret);
goto clean_exit;
}
q->tmp_noise = srslte_vec_malloc(sizeof(cf_t) * MAX_REFS_SF);
if (!q->tmp_noise) {
perror("malloc");
goto clean_exit;
}
q->pilot_estimates = srslte_vec_malloc(sizeof(cf_t) * MAX_REFS_SF);
if (!q->pilot_estimates) {
perror("malloc");
goto clean_exit;
}
for (int i=0;i<4;i++) {
q->pilot_estimates_tmp[i] = srslte_vec_malloc(sizeof(cf_t) * MAX_REFS_SF);
if (!q->pilot_estimates_tmp[i]) {
perror("malloc");
goto clean_exit;
}
}
q->pilot_recv_signal = srslte_vec_malloc(sizeof(cf_t) * (MAX_REFS_SF+1));
if (!q->pilot_recv_signal) {
perror("malloc");
goto clean_exit;
}
q->pilot_known_signal = srslte_vec_malloc(sizeof(cf_t) * (MAX_REFS_SF+1));
if (!q->pilot_known_signal) {
perror("malloc");
goto clean_exit;
}
if (srslte_interp_linear_vector_init(&q->srslte_interp_linvec, MAX_REFS_SYM)) {
fprintf(stderr, "Error initializing vector interpolator\n");
goto clean_exit;
}
q->smooth_filter_len = 3;
srslte_chest_ul_set_smooth_filter3_coeff(q, 0.3333);
q->dmrs_signal_configured = false;
if (srslte_refsignal_dmrs_pusch_pregen_init(&q->dmrs_signal, &q->dmrs_pregen, max_prb)) {
fprintf(stderr, "Error allocating memory for pregenerated signals\n");
goto clean_exit;
}
}
ret = SRSLTE_SUCCESS;
clean_exit:
if (ret != SRSLTE_SUCCESS) {
srslte_chest_ul_free(q);
}
return ret;
}
int srslte_chest_ul_init(srslte_chest_ul_t *q, srslte_cell_t cell)
{
int ret = SRSLTE_ERROR_INVALID_INPUTS;
if (q != NULL &&
srslte_cell_isvalid(&cell))
{
bzero(q, sizeof(srslte_chest_ul_t));
q->cell = cell;
ret = srslte_refsignal_ul_init(&q->dmrs_signal, cell);
if (ret != SRSLTE_SUCCESS) {
fprintf(stderr, "Error initializing CSR signal (%d)\n",ret);
goto clean_exit;
}
q->tmp_noise = srslte_vec_malloc(sizeof(cf_t) * NOF_REFS_SF);
if (!q->tmp_noise) {
perror("malloc");
goto clean_exit;
}
q->pilot_estimates = srslte_vec_malloc(sizeof(cf_t) * NOF_REFS_SF);
if (!q->pilot_estimates) {
perror("malloc");
goto clean_exit;
}
for (int i=0;i<4;i++) {
q->pilot_estimates_tmp[i] = srslte_vec_malloc(sizeof(cf_t) * NOF_REFS_SF);
if (!q->pilot_estimates_tmp[i]) {
perror("malloc");
goto clean_exit;
}
}
q->pilot_recv_signal = srslte_vec_malloc(sizeof(cf_t) * (NOF_REFS_SF+1));
if (!q->pilot_recv_signal) {
perror("malloc");
goto clean_exit;
}
q->pilot_known_signal = srslte_vec_malloc(sizeof(cf_t) * (NOF_REFS_SF+1));
if (!q->pilot_known_signal) {
perror("malloc");
goto clean_exit;
}
if (srslte_interp_linear_vector_init(&q->srslte_interp_linvec, NOF_REFS_SYM)) {
fprintf(stderr, "Error initializing vector interpolator\n");
goto clean_exit;
}
q->smooth_filter_len = 3;
srslte_chest_ul_set_smooth_filter3_coeff(q, 0.3333);
q->dmrs_signal_configured = false;
}
ret = SRSLTE_SUCCESS;
clean_exit:
if (ret != SRSLTE_SUCCESS) {
srslte_chest_ul_free(q);
}
return ret;
}
