5G • Core Network
Deregistration Procedure
5GS Deregistration Procedure
Procedure terminating UE registration in the 5G Core, releasing all PDU sessions and radio contexts.
Technical Explanation
Deregistration can be UE-initiated (power-off or flight mode) or network-initiated (subscription cancellation, operator maintenance). The AMF releases all associated PDU sessions with SMF/UPF, tears down radio contexts in the gNodeB, and transitions the UE state to RM-DEREGISTERED.
Key Functions
- Gracefully terminates user registration upon power-off or network command
- Releases all active PDU sessions and associated user plane tunnels
- Transitions registration state back to RM-DEREGISTERED
Specifications
3GPP TS 23.502, TS 24.501
Interfaces
N1N2
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