maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

UE changes: Handling of ulsyncvalidityduration IE in sib19

Browse Source 
Spec 38.331 section 5.2.2.4.21 indicates this
1> start or restart T430 for serving cell with the timer value set to ntn-UlSyncValidityDuration for the serving cell
from the subframe indicated by epochTime for the serving cell;
NOTE: UE should attempt to re-acquire SIB19 before the end of the duration indicated by ntn-UlSyncValidityDuration and epochTime

Epochtime IE
When explicitly provided through SIB, or through dedicated signaling, the EpochTime is the starting time of a DL
sub-frame, indicated by a SFN and a sub-frame number signaled together with the assistance information.
For serving cell, the field sfn indicates the current SFN or the next upcoming SFN after the frame where the message indicating the epochTime is received.
This field is mandatory present when ntn-Config is provided in dedicated configuration.

gNB implementation related to epochtime will be done in a separate merge request.
This commit is contained in:
Raghavendra Dinavahi
2025-06-17 13:49:55 +02:00
committed by francescomani
parent bc1844b482
commit 6fc02164c5
7 changed files with 220 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c
+9 -4
View File
@@ -1106,9 +1106,11 @@ static int handle_bcch_dlsch(NR_UE_MAC_INST_t *mac,
unsigned int gNB_index,
uint8_t ack_nack,
uint8_t *pduP,
uint32_t pdu_len)
uint32_t pdu_len,
int frame,
int slot)
{
nr_ue_decode_BCCH_DL_SCH(mac, cc_id, gNB_index, ack_nack, pduP, pdu_len);
nr_ue_decode_BCCH_DL_SCH(mac, cc_id, gNB_index, ack_nack, pduP, pdu_len, frame, slot);
return 0;
}
@@ -1290,10 +1292,13 @@ static uint32_t nr_ue_dl_processing(NR_UE_MAC_INST_t *mac, nr_downlink_indicatio
break;
case FAPI_NR_RX_PDU_TYPE_SIB:
ret_mask |= (handle_bcch_dlsch(mac,
dl_info->cc_id, dl_info->gNB_index,
dl_info->cc_id,
dl_info->gNB_index,
rx_indication_body.pdsch_pdu.ack_nack,
rx_indication_body.pdsch_pdu.pdu,
rx_indication_body.pdsch_pdu.pdu_length)) << FAPI_NR_RX_PDU_TYPE_SIB;
rx_indication_body.pdsch_pdu.pdu_length,
dl_info->frame,
dl_info->slot)) << FAPI_NR_RX_PDU_TYPE_SIB;
break;
case FAPI_NR_RX_PDU_TYPE_DLSCH:
ret_mask |= (handle_dlsch(mac, dl_info, i)) << FAPI_NR_RX_PDU_TYPE_DLSCH;