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common function for default N_TA_offset (not sure what in develop is correct)

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francescomani
2024-09-24 10:39:25 +02:00
parent a494580210
commit 15279d8732
5 changed files with 29 additions and 77 deletions
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executables/nr-ru.c
+4 -37
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@@ -959,43 +959,10 @@ int setup_RU_buffers(RU_t *ru) {
int mu = config->ssb_config.scs_common.value;
int N_RB = config->carrier_config.dl_grid_size[config->ssb_config.scs_common.value].value;
if (config->cell_config.frame_duplex_type.value == TDD) {
int N_TA_offset = config->carrier_config.uplink_frequency.value < 6000000 ? 400 : 431; // reference samples for 25600Tc @ 30.72 Ms/s for FR1, same @ 61.44 Ms/s for FR2
double factor=1;
switch (mu) {
case 0: //15 kHz scs
AssertFatal(N_TA_offset == 400, "scs_common 15kHz only for FR1\n");
factor = fp->samples_per_subframe / 30720.0;
break;
case 1: //30 kHz sc
AssertFatal(N_TA_offset == 400, "scs_common 30kHz only for FR1\n");
factor = fp->samples_per_subframe / 30720.0;
break;
case 2: //60 kHz scs
AssertFatal(1==0, "scs_common should not be 60 kHz\n");
break;
case 3: //120 kHz scs
AssertFatal(N_TA_offset == 431, "scs_common 120kHz only for FR2\n");
factor = fp->samples_per_subframe / 61440.0;
break;
case 4: //240 kHz scs
AssertFatal(N_TA_offset == 431, "scs_common 240kHz only for FR2\n");
factor = fp->samples_per_subframe / 61440.0;
break;
default:
AssertFatal(1==0, "Invalid scs_common!\n");
}
ru->N_TA_offset = (int)(N_TA_offset * factor);
LOG_I(PHY,"RU %d Setting N_TA_offset to %d samples (factor %f, UL Freq %d, N_RB %d, mu %d)\n",ru->idx,ru->N_TA_offset,factor,
config->carrier_config.uplink_frequency.value, N_RB, mu);
} else ru->N_TA_offset = 0;
ru->N_TA_offset = set_default_nta_offset(fp->freq_range, fp->samples_per_subframe);
LOG_I(PHY,
"RU %d Setting N_TA_offset to %d samples (UL Freq %d, N_RB %d, mu %d)\n",
ru->idx, ru->N_TA_offset, config->carrier_config.uplink_frequency.value, N_RB, mu);
if (ru->openair0_cfg.mmapped_dma == 1) {
// replace RX signal buffers with mmaped HW versions