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fix: issue 911 - OAI gNB hangs when AMF connection goes down

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- Extended fix to support multiple UEs instead of single UE
- Actions now trigger upon AMF reconnection

Per 3GPP TS 123 502 V16.7.0 (2021-01) Section 4.2.6 (AN Release):
When NG-AP signalling connection is lost due to (R)AN or AMF failure,
AN release is performed locally by AMF or (R)AN without relying on
signalling between (R)AN and AMF. This deactivates all UP connections.
This commit is contained in:
Aswanth KC
2026-03-05 09:53:00 +01:00
committed by Robert Schmidt
parent 46b7670672
commit c90d7f7f26
7 changed files with 78 additions and 1 deletions
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openair2/COMMON/ngap_messages_def.h
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@@ -73,6 +73,7 @@ MESSAGE_DEF(NGAP_HANDOVER_NOTIFY, MESSAGE_PRIORITY_MED, ngap_handover_notify_t,
MESSAGE_DEF(NGAP_HANDOVER_CANCEL, MESSAGE_PRIORITY_MED, ngap_handover_cancel_t, ngap_handover_cancel)
MESSAGE_DEF(NGAP_UL_RAN_STATUS_TRANSFER, MESSAGE_PRIORITY_MED, ngap_ran_status_transfer_t, ngap_ul_ran_status_transfer)
MESSAGE_DEF(NGAP_DL_RAN_STATUS_TRANSFER, MESSAGE_PRIORITY_MED, ngap_ran_status_transfer_t, ngap_dl_ran_status_transfer)
MESSAGE_DEF(NGAP_RECONNECT_TIMER, MESSAGE_PRIORITY_MED, IttiMsgText, ngap_gNB_amf_data)
/* NGAP -> RRC messages */
MESSAGE_DEF(NGAP_DOWNLINK_NAS , MESSAGE_PRIORITY_MED, ngap_downlink_nas_t , ngap_downlink_nas )