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Helper function to get center frequency

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from point A.
This commit is contained in:
Sakthivel Velumani
2024-12-10 09:50:27 -05:00
parent 5ac703b580
commit 4f56bf903a
1 changed files with 10 additions and 4 deletions
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executables/nr-ue.c
+10 -4
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@@ -558,6 +558,13 @@ void processSlotTX(void *arg)
TracyCZoneEnd(ctx);
}
static uint64_t get_carrier_frequency(const int N_RB, const int mu, const uint32_t pointA_freq_khz)
{
const uint64_t bw = (NR_NB_SC_PER_RB * N_RB) * MU_SCS(mu);
const uint64_t carrier_freq = (pointA_freq_khz + bw / 2) * 1000;
return carrier_freq;
}
static int UE_dl_preprocessing(PHY_VARS_NR_UE *UE,
const UE_nr_rxtx_proc_t *proc,
int *tx_wait_for_dlsch,
@@ -584,10 +591,9 @@ static int UE_dl_preprocessing(PHY_VARS_NR_UE *UE,
UE->target_Nid_cell = UE->synch_request.synch_req.target_Nid_cell;
UE->target_Nid_cell = synch_req->target_Nid_cell;
uint64_t dl_bw = (12 * fp->N_RB_DL) * (15000 << fp->numerology_index);
uint64_t dl_CarrierFreq = (dl_bw >> 1) + (uint64_t)UE->nrUE_config.carrier_config.dl_frequency * 1000;
uint64_t ul_bw = (12 * fp->N_RB_UL) * (15000 << fp->numerology_index);
uint64_t ul_CarrierFreq = (ul_bw >> 1) + (uint64_t)UE->nrUE_config.carrier_config.uplink_frequency * 1000;
const fapi_nr_ue_carrier_config_t *cfg = &UE->nrUE_config.carrier_config;
uint64_t dl_CarrierFreq = get_carrier_frequency(fp->N_RB_DL, fp->numerology_index, cfg->dl_frequency);
uint64_t ul_CarrierFreq = get_carrier_frequency(fp->N_RB_UL, fp->numerology_index, cfg->uplink_frequency);
if (dl_CarrierFreq != fp->dl_CarrierFreq || ul_CarrierFreq != fp->ul_CarrierFreq) {
fp->dl_CarrierFreq = dl_CarrierFreq;
fp->ul_CarrierFreq = ul_CarrierFreq;