5G • Core Network
N14 Interface
N14 Reference Point (Inter-AMF)
Control plane interface between two AMFs used for UE context transfer during mobility.
Technical Explanation
Realized via the Namf_Communication service, the N14 reference point allows a new target AMF to retrieve the complete security context, active PDU session references, and subscriber identity from the old source AMF during registration updates or handovers.
Key Functions
- Transfers complete UE context records between neighboring AMFs
- Eliminates need for full re-authentication during inter-AMF mobility
- Realized via Namf_Communication service operation
Specifications
3GPP TS 23.501, TS 29.518
Interfaces
N14Namf
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