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OpenXG-RAN
Commit b141faaf authored by Raghavendra Dinavahi's avatar Raghavendra Dinavahi
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K-offset updated with configured sub carrier spacing 

According to 38.331 , cell specific K-OFFSET provided in SIB19 is provided in number of slots as per 15Khz SCS
Koffset before being applied, needs to be updated to the slots according to the configured subcarrier spacing.
parent 1d479b2a
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Showing with 44 additions and 30 deletions
executables/nr-ue.c
View file @ b141faaf
......@@ -872,18 +872,22 @@ static inline void apply_ntn_config(PHY_VARS_NR_UE *UE,
if (*update_ntn_system_information) {
*update_ntn_system_information = false;
*duration_rx_to_tx = NR_UE_CAPABILITY_SLOT_RX_TO_TX + UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
UE->timing_advance = fp->samples_per_subframe * UE->ntn_config_message->ntn_config_params.ntn_total_time_advance_ms;
*timing_advance +=
fp->get_samples_slot_timestamp(slot_nr,
fp,
UE->ntn_config_message->ntn_config_params.cell_specific_k_offset - *ntn_koffset);
*ntn_koffset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
double total_ta_ms = UE->ntn_config_message->ntn_config_params.ntn_total_time_advance_ms;
UE->timing_advance = fp->samples_per_subframe * total_ta_ms;
int mu = fp->numerology_index;
int koffset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
if (*ntn_koffset != koffset) {
*duration_rx_to_tx = NR_UE_CAPABILITY_SLOT_RX_TO_TX + (koffset << mu);
*timing_advance += fp->get_samples_slot_timestamp(slot_nr, fp, (koffset - *ntn_koffset) << mu);
*ntn_koffset = koffset;
}
LOG_I(PHY,
"cell_specific_k_offset = %d ms, ntn_total_time_advance_ms = %f ms (%d samples)\n",
"k_offset = %d ms (%d slots), ntn_total_time_advance_ms = %f ms (%d samples)\n",
*ntn_koffset,
UE->ntn_config_message->ntn_config_params.ntn_total_time_advance_ms,
*ntn_koffset << mu,
total_ta_ms,
UE->timing_advance);
}
}
......@@ -1080,7 +1084,7 @@ void *UE_thread(void *arg)
if (UE->ntn_config_message->update) {
UE->ntn_config_message->update = false;
update_ntn_system_information = true;
nr_slot_tx_offset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset;
nr_slot_tx_offset = UE->ntn_config_message->ntn_config_params.cell_specific_k_offset << fp->numerology_index;
}
int slot_nr = absolute_slot % nb_slot_frame;
......
openair2/LAYER2/NR_MAC_UE/config_ue.c
View file @ b141faaf
......@@ -306,6 +306,13 @@ void configure_ntn_ta(module_id_t module_id, ntn_timing_advance_componets_t *ntn
ntn_ta->ntn_ta_commondrift = *ntn_Config_r17->ta_Info_r17->ta_CommonDrift_r17 * 0.2e-3;
}
ntn_ta->ntn_params_changed = true;
LOG_D(NR_MAC,
"SIB19 Rxd. k_offset:%ld, N_Common_Ta:%f,drift:%f,N_UE_TA:%f \n",
ntn_ta->cell_specific_k_offset,
ntn_ta->N_common_ta_adj,
ntn_ta->ntn_ta_commondrift,
ntn_ta->N_UE_TA_adj);
}
static void config_common_ue(NR_UE_MAC_INST_t *mac, NR_ServingCellConfigCommon_t *scc, int cc_idP)
......
openair2/LAYER2/NR_MAC_UE/mac_defs.h
View file @ b141faaf
......@@ -649,9 +649,9 @@ static inline double GET_COMPLETE_TIME_ADVANCE_MS(const ntn_timing_advance_compo
return ntn_ta->N_common_ta_adj + ntn_ta->N_UE_TA_adj;
}
static inline long GET_DURATION_RX_TO_TX(const ntn_timing_advance_componets_t *ntn_ta)
static inline long GET_DURATION_RX_TO_TX(const ntn_timing_advance_componets_t *ntn_ta, int scs)
{
return NR_UE_CAPABILITY_SLOT_RX_TO_TX + ntn_ta->cell_specific_k_offset;
return NR_UE_CAPABILITY_SLOT_RX_TO_TX + (ntn_ta->cell_specific_k_offset << scs);
}
/*@}*/
......
openair2/LAYER2/NR_MAC_UE/nr_ue_procedures.c
View file @ b141faaf
......@@ -927,10 +927,10 @@ static int nr_ue_process_dci_dl_10(NR_UE_MAC_INST_t *mac,
const uint16_t feedback_ti = 1 + dci->pdsch_to_harq_feedback_timing_indicator.val + ntn_ue_koffset;
if (rnti_type != TYPE_RA_RNTI_ && rnti_type != TYPE_SI_RNTI_) {
AssertFatal(feedback_ti > GET_DURATION_RX_TO_TX(&mac->ntn_ta),
AssertFatal(feedback_ti > GET_DURATION_RX_TO_TX(&mac->ntn_ta, dlsch_pdu->SubcarrierSpacing),
"PDSCH to HARQ feedback time (%d) needs to be higher than DURATION_RX_TO_TX (%ld).\n",
feedback_ti,
GET_DURATION_RX_TO_TX(&mac->ntn_ta));
GET_DURATION_RX_TO_TX(&mac->ntn_ta, dlsch_pdu->SubcarrierSpacing));
// set the harq status at MAC for feedback
const int tpc[] = {-1, 0, 1, 3};
set_harq_status(mac,
......@@ -1220,11 +1220,11 @@ static int nr_ue_process_dci_dl_11(NR_UE_MAC_INST_t *mac,
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->ntn_ta, dlsch_pdu->SubcarrierSpacing);
const uint16_t feedback_ti = pucch_Config->dl_DataToUL_ACK->list.array[dci->pdsch_to_harq_feedback_timing_indicator.val][0] + ntn_ue_koffset;
AssertFatal(feedback_ti > GET_DURATION_RX_TO_TX(&mac->ntn_ta),
AssertFatal(feedback_ti > GET_DURATION_RX_TO_TX(&mac->ntn_ta, dlsch_pdu->SubcarrierSpacing),
"PDSCH to HARQ feedback time (%d) needs to be higher than DURATION_RX_TO_TX (%ld). Min feedback time set in config "
"file (min_rxtxtime).\n",
feedback_ti,
GET_DURATION_RX_TO_TX(&mac->ntn_ta));
GET_DURATION_RX_TO_TX(&mac->ntn_ta, dlsch_pdu->SubcarrierSpacing));
// set the harq status at MAC for feedback
const int tpc[] = {-1, 0, 1, 3};
......
openair2/LAYER2/NR_MAC_UE/nr_ue_scheduler.c
View file @ b141faaf
......@@ -1037,9 +1037,11 @@ void nr_ue_aperiodic_srs_scheduling(NR_UE_MAC_INST_t *mac, long resource_trigger
return;
}
AssertFatal(slot_offset > GET_DURATION_RX_TO_TX(&mac->ntn_ta),
int scs = mac->current_UL_BWP->scs;
AssertFatal(slot_offset > GET_DURATION_RX_TO_TX(&mac->ntn_ta, scs),
"Slot offset between DCI and aperiodic SRS (%d) needs to be higher than DURATION_RX_TO_TX (%ld)\n",
slot_offset, GET_DURATION_RX_TO_TX(&mac->ntn_ta));
slot_offset,
GET_DURATION_RX_TO_TX(&mac->ntn_ta, scs));
int n_slots_frame = mac->frame_structure.numb_slots_frame;
int sched_slot = (slot + slot_offset) % n_slots_frame;
if (!is_ul_slot(sched_slot, &mac->frame_structure)) {
......@@ -1563,23 +1565,24 @@ int nr_ue_pusch_scheduler(const NR_UE_MAC_INST_t *mac,
AssertFatal(1 == 0, "Invalid numerology %i\n", mu);
}
AssertFatal((k2 + delta) > GET_DURATION_RX_TO_TX(&mac->ntn_ta),
"Slot offset (%ld) for Msg3 needs to be higher than DURATION_RX_TO_TX (%ld). Please set min_rxtxtime at least to %ld in gNB config file or gNBs.[0].min_rxtxtime=%ld via command line.\n",
AssertFatal((k2 + delta) > GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
"Slot offset (%ld) for Msg3 needs to be higher than DURATION_RX_TO_TX (%ld). Please set min_rxtxtime at least to "
"%ld in gNB config file or gNBs.[0].min_rxtxtime=%ld via command line.\n",
k2,
GET_DURATION_RX_TO_TX(&mac->ntn_ta),
GET_DURATION_RX_TO_TX(&mac->ntn_ta),
GET_DURATION_RX_TO_TX(&mac->ntn_ta));
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu));
*slot_tx = (current_slot + k2 + delta) % slots_per_frame;
*frame_tx = (current_frame + (current_slot + k2 + delta) / slots_per_frame) % MAX_FRAME_NUMBER;
} else {
AssertFatal(k2 > GET_DURATION_RX_TO_TX(&mac->ntn_ta),
"Slot offset K2 (%ld) needs to be higher than DURATION_RX_TO_TX (%ld). Please set min_rxtxtime at least to %ld in gNB config file or gNBs.[0].min_rxtxtime=%ld via command line.\n",
AssertFatal(k2 > GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
"Slot offset K2 (%ld) needs to be higher than DURATION_RX_TO_TX (%ld). Please set min_rxtxtime at least to %ld in "
"gNB config file or gNBs.[0].min_rxtxtime=%ld via command line.\n",
k2,
GET_DURATION_RX_TO_TX(&mac->ntn_ta),
GET_DURATION_RX_TO_TX(&mac->ntn_ta),
GET_DURATION_RX_TO_TX(&mac->ntn_ta));
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu),
GET_DURATION_RX_TO_TX(&mac->ntn_ta, mu));
if (k2 < 0) { // This can happen when a false DCI is received
LOG_W(PHY, "%d.%d. Received k2 %ld\n", current_frame, current_slot, k2);
......@@ -2203,7 +2206,7 @@ static void nr_ue_prach_scheduler(NR_UE_MAC_INST_t *mac, frame_t frameP, slot_t
add_slots++;
}
nr_timer_setup(&ra->response_window_timer,
ra->response_window_setup_time + add_slots + GET_DURATION_RX_TO_TX(&mac->ntn_ta),
ra->response_window_setup_time + add_slots + GET_DURATION_RX_TO_TX(&mac->ntn_ta, mac->current_DL_BWP->scs),
1);
nr_timer_start(&ra->response_window_timer);
} else if (ra->ra_type == RA_2_STEP) {
......
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