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Added message-based communication between L2 and L1 regarding NTN configuration parameters

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This commit is contained in:
Roberto Rosca
2024-12-11 13:01:50 +02:00
parent bd7fb492fd
commit be618b069e
15 changed files with 173 additions and 54 deletions
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executables/nr-ue.c
+14 -16
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@@ -157,6 +157,9 @@ void init_nr_ue_vars(PHY_VARS_NR_UE *ue, uint8_t UE_id)
ue->dci_thres = 0;
ue->target_Nid_cell = -1;
ue->ntn_config_message = CALLOC(1, sizeof(*ue->ntn_config_message));
ue->ntn_config_message->update = false;
config_position_coordinates(UE_id);
// initialize all signal buffers
init_nr_ue_signal(ue, nb_connected_gNB);
@@ -826,13 +829,12 @@ void *UE_thread(void *arg)
readFrame(UE, &tmp, true);
}
double ntn_ta_common = GET_COMPLETE_TIME_ADVANCE_MS(mac);
int ntn_koffset = GET_NTN_UE_K_OFFSET(mac, 0);
double ntn_ta_common = 0;
int ntn_koffset = 0;
int duration_rx_to_tx = GET_DURATION_RX_TO_TX(mac);
int duration_rx_to_tx = NR_UE_CAPABILITY_SLOT_RX_TO_TX;
int nr_slot_tx_offset = 0;
bool update_ntn_system_information = false;
bool apply_duration_next_run = false;
while (!oai_exit) {
nr_slot_tx_offset = 0;
@@ -945,17 +947,18 @@ void *UE_thread(void *arg)
if (update_ntn_system_information) {
update_ntn_system_information = false;
int ta_offset = UE->frame_parms.samples_per_subframe * (GET_COMPLETE_TIME_ADVANCE_MS(mac) - ntn_ta_common);
int ta_offset = UE->frame_parms.samples_per_subframe * (UE->ntn_config_message->ntn_config_params.ntn_total_time_advance_ms - ntn_ta_common);
UE->timing_advance += ta_offset;
ntn_ta_common = GET_COMPLETE_TIME_ADVANCE_MS(mac);
ntn_koffset = GET_NTN_UE_K_OFFSET(mac, 0);
ntn_ta_common = UE->ntn_config_message->ntn_config_params.ntn_total_time_advance_ms;
ntn_koffset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
timing_advance = ntn_koffset * (UE->frame_parms.samples_per_subframe >> mac->current_UL_BWP->scs);
}
if (ntn_koffset != (GET_NTN_UE_K_OFFSET(mac, 0)) && ntn_ta_common != GET_COMPLETE_TIME_ADVANCE_MS(mac)) {
if (UE->ntn_config_message->update) {
UE->ntn_config_message->update = false;
update_ntn_system_information = true;
nr_slot_tx_offset = mac->ntn_ta.cell_specific_k_offset % nb_slot_frame;
nr_slot_tx_offset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset % nb_slot_frame;
}
int slot_nr = absolute_slot % nb_slot_frame;
@@ -1059,13 +1062,8 @@ void *UE_thread(void *arg)
stream_status = STREAM_STATUS_SYNCED;
tx_wait_for_dlsch[slot] = 0;
// apply new duration next run to avoid thread dead lock
if (apply_duration_next_run) {
duration_rx_to_tx = GET_DURATION_RX_TO_TX(mac);
apply_duration_next_run = false;
}
if (duration_rx_to_tx != GET_DURATION_RX_TO_TX(mac)) {
apply_duration_next_run = true;
if (update_ntn_system_information) {
duration_rx_to_tx = NR_UE_CAPABILITY_SLOT_RX_TO_TX + UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
}
}