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srsLTE
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Normalize CSI to maximum.

This commit is contained in:
Xavier Arteaga 2018-03-06 17:09:59 +01:00
parent ec901373d4
commit 962164277a
1 changed files with 6 additions and 1 deletions
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7
lib/src/phy/phch/pdsch.c
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@ -659,8 +659,13 @@ static int srslte_pdsch_codeword_decode(srslte_pdsch_t *q, srslte_pdsch_cfg_t *c
int16_t *e = q->e[codeword_idx];
if (q->csi_enabled) {
const uint32_t csi_max_idx = srslte_vec_max_fi(q->csi[codeword_idx], nbits->nof_bits / qm);
float csi_max = 1.0f;
if (csi_max_idx < nbits->nof_bits / qm) {
csi_max = q->csi[codeword_idx][csi_max_idx];
}
for (int i = 0; i < nbits->nof_bits / qm; i++) {
float csi = q->csi[codeword_idx][i];
const float csi = q->csi[codeword_idx][i] / csi_max;
for (int k = 0; k < qm; k++) {
e[qm * i + k] = (int16_t) ((float) e[qm * i + k] * csi);
}