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5GS – General Registration – 24 of 25
Signalling flow for TS 23.502 General Register - UE to new AMF: Registration Complete


Step 22, verbatim
[Conditional] UE to new AMF: Registration Complete ().
The UE sends a Registration Complete message to the AMF when it has successfully updated itself after receiving a Network Slicing Subscription Change Indication in step 22.
The UE sends a Registration Complete message to the AMF to acknowledge if a new 5G‑GUTI was assigned.
When the "List Of PDU Sessions To Be Activated" is not included in the Registration Request, the AMF releases the signalling connection with UE, according to clause 4.2.6.
When the Follow on request is included in the Registration Request, the AMF should not release the signalling connection after the completion of the Registration procedure.
If the AMF is aware that some signalling is pending in the AMF or between the UE and the 5GC, the AMF should not release the signalling connection immediately after the completion of the Registration procedure.