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NR UE FAPI: provide ntn_config as part of phy_config.config_req instead of a dedicated scheduled_response dl_config PDU

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We need the ntn_config when reconfiguring the PHY layer for a new initial sync,
e.g. for calculating the DL Doppler frequency.

As a dedicated scheduled_response dl_config PDU it reaches the PHY layer too late,
as part of the phy_config.config_req it reaches the PHY layer in time with the
other configuration values.
This commit is contained in:
Thomas Schlichter
2025-12-19 16:42:47 +01:00
parent b5a025931c
commit 3dcaacb63b
12 changed files with 50 additions and 145 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/LAYER2/NR_MAC_UE/config_ue.c
+9 -5
View File
@@ -263,7 +263,7 @@ static void config_common_ue_sa(NR_UE_MAC_INST_t *mac, NR_ServingCellConfigCommo
}
// prepare data for orbit propagation based on SIB19 ephemeris data to be able to compute the round-trip-time between ue and sat
static void prepare_ue_sat_ta(const NR_PositionVelocity_r17_t *sat_pos, ntn_timing_advance_componets_t *ntn_ta)
static void prepare_ue_sat_ta(const NR_PositionVelocity_r17_t *sat_pos, fapi_nr_ntn_config_t *ntn_ta)
{
// get sat position coordinates
const position_t pos_sat = {sat_pos->positionX_r17 * 1.3, sat_pos->positionY_r17 * 1.3, sat_pos->positionZ_r17 * 1.3};
@@ -327,7 +327,7 @@ static void prepare_ue_sat_ta(const NR_PositionVelocity_r17_t *sat_pos, ntn_timi
}
// populate ntn_ta structure from mac
static void configure_ntn_ta(ntn_timing_advance_componets_t *ntn_ta, const NR_NTN_Config_r17_t *ntn_Config_r17, int hfn, int frame)
static void configure_ntn_ta(fapi_nr_ntn_config_t *ntn_ta, const NR_NTN_Config_r17_t *ntn_Config_r17, int hfn, int frame)
{
if (!ntn_Config_r17)
return;
@@ -402,7 +402,7 @@ static void configure_ntn_ta(ntn_timing_advance_componets_t *ntn_ta, const NR_NT
ntn_ta->vel_sat_90 = (position_t){0, 0, 0};
}
ntn_ta->ntn_params_changed = true;
ntn_ta->params_changed = true;
}
static void config_common_ue(NR_UE_MAC_INST_t *mac, NR_ServingCellConfigCommon_t *scc, int cc_idP, int hfn, int frame)
@@ -579,7 +579,7 @@ static void config_common_ue(NR_UE_MAC_INST_t *mac, NR_ServingCellConfigCommon_t
// NTN Config
if (scc->ext2) {
UPDATE_IE(mac->sc_info.ntn_Config_r17, scc->ext2->ntn_Config_r17, NR_NTN_Config_r17_t);
configure_ntn_ta(&mac->ntn_ta, mac->sc_info.ntn_Config_r17, hfn, frame);
configure_ntn_ta(&mac->phy_config.config_req.ntn_config, mac->sc_info.ntn_Config_r17, hfn, frame);
} else {
asn1cFreeStruc(asn_DEF_NR_NTN_Config_r17, mac->sc_info.ntn_Config_r17);
}
@@ -1977,6 +1977,7 @@ void nr_rrc_mac_config_req_sib1(module_id_t module_id, int cc_idP, NR_SIB1_t *si
mac->state = UE_PERFORMING_RA;
mac->if_module->phy_config_request(&mac->phy_config);
mac->phy_config.config_req.ntn_config.params_changed = false;
ret = pthread_mutex_unlock(&mac->if_mutex);
AssertFatal(!ret, "mutex failed %d\n", ret);
}
@@ -1990,7 +1991,9 @@ void nr_rrc_mac_config_other_sib(module_id_t module_id, NR_SIB19_r17_t *sib19, i
if (sib19) {
// update ntn_Config_r17 with received values
UPDATE_IE(mac->sc_info.ntn_Config_r17, sib19->ntn_Config_r17, NR_NTN_Config_r17_t);
configure_ntn_ta(&mac->ntn_ta, mac->sc_info.ntn_Config_r17, hfn, frame);
configure_ntn_ta(&mac->phy_config.config_req.ntn_config, mac->sc_info.ntn_Config_r17, hfn, frame);
mac->if_module->phy_config_request(&mac->phy_config);
mac->phy_config.config_req.ntn_config.params_changed = false;
}
if (mac->state == UE_RECEIVING_SIB && can_start_ra)
mac->state = UE_PERFORMING_RA;
@@ -2053,6 +2056,7 @@ static void handle_reconfiguration_with_sync(NR_UE_MAC_INST_t *mac,
mac->synch_request.synch_req.target_Nid_cell = mac->physCellId;
mac->if_module->synch_request(&mac->synch_request);
mac->if_module->phy_config_request(&mac->phy_config);
mac->phy_config.config_req.ntn_config.params_changed = false;
}
static void configure_physicalcellgroup(NR_UE_MAC_INST_t *mac,