(R)AN to new AMF: N2 message (N2 parameters, RM-NAS Registration Request (Registration type, SUPI
, last visited TAI
(if available), Security parameters, Requested NSSAI
, Mapping Of Requested NSSAI
, UE 5GC Capability, PDU Session status, PDU Session(s) to be re-activated, Follow on request, and MICO mode
When NG-RAN is used, the N2 parameters include the Selected PLMN ID
, Location Information, Cell Identity and the RAT type related to the cell in which the UE is camping.
When NG-RAN is used, the N2 parameters also include the Establishment cause.
If the Registration type indicated by the UE is Periodic Registration Update, then steps 4 to 17
may be omitted.