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srsLTE
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Fixed blind search

This commit is contained in:
Ismael Gomez 2016-08-30 19:49:50 +02:00
parent 9b01555626
commit d80146e657
1 changed files with 10 additions and 6 deletions
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16
srslte/lib/phch/pdcch.c
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@ -187,7 +187,7 @@ uint32_t srslte_pdcch_ue_locations_ncce(uint32_t nof_cce, srslte_dci_location_t
int l; // this must be int because of the for(;;--) loop
uint32_t i, k, L, m;
uint32_t Yk, ncce;
const int S[4] = { 6, 12, 8, 16 };
const int M[4] = { 6, 6, 2, 2 };
// Compute Yk for this subframe
Yk = rnti;
@ -200,7 +200,7 @@ uint32_t srslte_pdcch_ue_locations_ncce(uint32_t nof_cce, srslte_dci_location_t
for (l = 3; l >= 0; l--) {
L = (1 << l);
// For all possible ncce offset
for (i = 0; i < SRSLTE_MIN(nof_cce / L, S[l]/PDCCH_FORMAT_NOF_CCE(l)); i++) {
for (i = 0; i < M[l]; i++) {
ncce = L * ((Yk + i) % (nof_cce / L));
if (k < max_candidates &&
ncce + PDCCH_FORMAT_NOF_CCE(l) <= nof_cce)
@ -239,14 +239,18 @@ uint32_t srslte_pdcch_common_locations(srslte_pdcch_t *q, srslte_dci_location_t
uint32_t srslte_pdcch_common_locations_ncce(uint32_t nof_cce, srslte_dci_location_t *c, uint32_t max_candidates)
{
uint32_t i, l, L, k;
const int M[4] = { 0, 0, 4, 2 };
k = 0;
for (l = 3; l > 1; l--) {
L = (1 << l);
for (i = 0; i < SRSLTE_MIN(nof_cce, 16) / (L); i++) {
if (k < max_candidates) {
for (i = 0; i < M[l]; i++) {
uint32_t ncce = L * (i % (nof_cce / L));
if (k < max_candidates &&
ncce + PDCCH_FORMAT_NOF_CCE(l) <= nof_cce)
{
c[k].L = l;
c[k].ncce = (L) * (i % (nof_cce / (L)));
c[k].ncce = ncce;
DEBUG("Common SS Candidate %d: nCCE: %d, L: %d\n",
k, c[k].ncce, c[k].L);
k++;