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NR_UE: correctly scale UL frequency offset (relevant for FDD)

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This commit is contained in:
Thomas Schlichter
2022-03-02 09:27:16 +01:00
parent bf4429196a
commit d09366c503
1 changed files with 3 additions and 2 deletions
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openair1/PHY/NR_UE_TRANSPORT/nr_ue_rf_helpers.c
+3 -2
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@@ -86,16 +86,17 @@ void nr_rf_card_config_freq(openair0_config_t *openair0_cfg,
uint8_t cc_id = 0;
PHY_VARS_NR_UE *ue = PHY_vars_UE_g[mod_id][cc_id];
int rf_chain = ue->rf_map.chain;
double freq_scale = (double)(dl_carrier + freq_offset) / dl_carrier;
for (int i = rf_chain; i < rf_chain + 4; i++) {
if (i < openair0_cfg->rx_num_channels)
openair0_cfg->rx_freq[i + rf_chain] = dl_carrier + freq_offset;
openair0_cfg->rx_freq[i + rf_chain] = dl_carrier * freq_scale;
else
openair0_cfg->rx_freq[i] = 0.0;
if (i<openair0_cfg->tx_num_channels)
openair0_cfg->tx_freq[i] = ul_carrier + freq_offset;
openair0_cfg->tx_freq[i] = ul_carrier * freq_scale;
else
openair0_cfg->tx_freq[i] = 0.0;