D.2 Determination of UE presence in Area of Interest by NG-RAN

23.5023GPPProcedures for the 5G System (5GS)Release 18TS

If the AMF has requested for the Area of Interest, NG-RAN determines the UE presence of Area Of Interest as follows:

– IN:

– if the UE is inside the Area Of Interest and the UE is in RRC Connected state; or

– if the UE is inside an RNA which is completely contained within the Area Of Interest.

– OUT:

– if the UE is outside the Area Of Interest in RRC Connected state; or

– if UE is inside an RNA which does not contain any part of Area Of Interest.

– UNKNOWN:

– if none of above conditions for IN or OUT is met.

Annex E (normative):
Delegated SMF and PCF discovery in the Home Routed and specific SMF Service Areas scenarios