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srsLTE
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Updated chest_dl to uplink

This commit is contained in:
ismagom 2015-02-25 11:28:20 +01:00
parent 9081f23ccb
commit 71fc73c85f
1 changed files with 4 additions and 4 deletions
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8
lte/phy/lib/ch_estimation/src/chest_dl.c
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@ -63,7 +63,7 @@ int chest_dl_init(chest_dl_t *q, lte_cell_t cell)
{ {
bzero(q, sizeof(chest_dl_t)); bzero(q, sizeof(chest_dl_t));
ret = refsignal_cs_generate(&q->csr_signal, cell); ret = refsignal_cs_init(&q->csr_signal, cell);
if (ret != LIBLTE_SUCCESS) { if (ret != LIBLTE_SUCCESS) {
fprintf(stderr, "Error initializing CSR signal (%d)\n",ret); fprintf(stderr, "Error initializing CSR signal (%d)\n",ret);
goto clean_exit; goto clean_exit;
@ -285,9 +285,9 @@ static void interpolate_pilots(chest_dl_t *q, cf_t *ce, uint32_t port_id)
/* Interpolate in the frequency domain */ /* Interpolate in the frequency domain */
for (l=0;l<nsymbols;l++) { for (l=0;l<nsymbols;l++) {
uint32_t fidx_offset = refsignal_fidx(q->cell, l, port_id, 0); uint32_t fidx_offset = refsignal_cs_fidx(q->cell, l, port_id, 0);
interp_linear_offset(&q->interp_lin, &pilot_avg(0), interp_linear_offset(&q->interp_lin, &pilot_avg(0),
&ce[refsignal_nsymbol(l,q->cell.cp, port_id) * q->cell.nof_prb * RE_X_RB], &ce[refsignal_cs_nsymbol(l,q->cell.cp, port_id) * q->cell.nof_prb * RE_X_RB],
fidx_offset, RE_X_RB/2-fidx_offset); fidx_offset, RE_X_RB/2-fidx_offset);
} }
@ -323,7 +323,7 @@ float chest_dl_rssi(chest_dl_t *q, cf_t *input, uint32_t port_id) {
float rssi = 0; float rssi = 0;
uint32_t nsymbols = refsignal_cs_nof_symbols(port_id); uint32_t nsymbols = refsignal_cs_nof_symbols(port_id);
for (l=0;l<nsymbols;l++) { for (l=0;l<nsymbols;l++) {
cf_t *tmp = &input[refsignal_nsymbol(l, q->cell.cp, port_id) * q->cell.nof_prb * RE_X_RB]; cf_t *tmp = &input[refsignal_cs_nsymbol(l, q->cell.cp, port_id) * q->cell.nof_prb * RE_X_RB];
rssi += vec_dot_prod_conj_ccc(tmp, tmp, q->cell.nof_prb * RE_X_RB); rssi += vec_dot_prod_conj_ccc(tmp, tmp, q->cell.nof_prb * RE_X_RB);
} }
return rssi/nsymbols; return rssi/nsymbols;