Question: In a Core Network Location Request for a target UE in Idle Mode, what must the core network determine to facilitate location estimation?
Option 1: The specific positioning method (e.g., GPS, Cell ID) to use for location estimation.
Option 2: Which RAN entity is associated with the Target UE.
Option 3: The exact geographical coordinates of nearby cell towers.
Option 4: The velocity of the Target UE before initiating the request.
Explanation: When a core network initiates a location request for a target UE that is in Idle Mode, it needs to first identify which Radio Access Network (RAN) entity is currently associated with that UE. This step is crucial because, in Idle Mode, the UE is not actively communicating with the network, and knowing the associated RAN entity helps in efficiently routing the location request and subsequently determining the UE's location using any supported positioning method.