Messages 5G NAS 5G NAS - Deregistration Accept (UE Originating) NAS 5G AMF to UE 3GPP TS 24.501
5G NAS - Deregistration Accept (UE Originating) Deregistration Accept (UE Originating) is the AMF response confirming that the UE-originated deregistration request was accepted.
Message Fact Sheet Full message name 5G NAS - Deregistration Accept (UE Originating) Protocol NAS Technology 5G Direction AMF to UE Interface N1 Signaling bearer / channel NAS signaling / Dedicated NAS message, commonly transported through DL Information Transfer Typical trigger Sent after a valid UE-originated Deregistration Request. Main purpose Confirms that the network processed the UE-originated deregistration and that the UE can treat the deregistration exchange as complete. Main specification 3GPP TS 24.501, 8.2.12 Release added Release 15 Procedures where used UE-Originated Deregistration
What is Deregistration Accept (UE Originating) in simple terms? Deregistration Accept (UE Originating) is the AMF response confirming that the UE-originated deregistration request was accepted.
Confirms that the network processed the UE-originated deregistration and that the UE can treat the deregistration exchange as complete.
Why this message matters This is the network confirming that the UE-originated deregistration is complete.
Where this message appears in the call flow UE-Originated Deregistration Call flow position: Network confirmation at the end of a successful UE-originated deregistration exchange.
Typical state: UE is leaving a previously registered state.
Preconditions:
The AMF received and accepted the UE-originated deregistration request. Next likely message: No immediate follow-on NAS message is required in the successful basic path
Call flow position Previous message(s): Deregistration Request (UE Originating)
Next message(s): UE leaves registered state
Message direction and transport Sender and receiver: AMF to UE
Interface: N1
Domain: Core-side mobility management signaling
Signaling bearer: NAS signaling
Logical channel: Dedicated NAS message, commonly transported through DL Information Transfer
Transport / encapsulation: NAS 5GS message carried end-to-end between AMF and UE
Security context: Commonly protected if valid NAS security still exists during the deregistration exchange.
Message Structure Overview This is a short confirmation message. Its main troubleshooting value is proving that the AMF received and accepted the UE-originated deregistration. ASN.1 Message Syntax for 5G NAS - Deregistration Accept (UE Originating) This message is not typically analyzed as ASN.1 on the wire. It is usually read as a NAS or protocol field structure instead.
This message follows NAS 24.501 formatting rather than ASN.1.
5G NAS - Deregistration Accept (UE Originating) - Example Dump Deregistration Accept (UE Originating)
Extended Protocol Discriminator: 5G Mobility Management
Security Header Type: Integrity protected and ciphered
Message Type: Deregistration Accept (UE Originating)
How to read this dump The practical check is whether it arrives after the UE-originated request and before the UE disappears from registered behavior. What to check in logs and traces Confirm the accept matches the preceding UE-originated request. Check whether the UE stops behaving as registered after receiving it. Correlate with later paging or re-registration if the state transition seems inconsistent. Common Issues and Troubleshooting UE sent deregistration request but no accept is seen. Likely cause: The network may not have received or processed the request, or the trace may be incomplete.
What to inspect: Check uplink delivery, DL Information Transfer, and AMF-side state.
Next step: Correlate with later paging or residual registered behavior.
FAQ What does Deregistration Accept (UE Originating) do? It confirms that the network accepted the UE's deregistration request.
Use This Reference in Practice Decode this message with the 3GPP Decoder , inspect the related message database , or open the matching call flow to see where this signaling step fits in the full procedure.