Question: In a VMSC/MSC Server handling Location Services (LCS), what triggers the transition from LCS IDLE to LOCATION state for a specific UE?
Option 1: Receipt of a location estimate result from the RAN
Option 2: Verification of UE subscription options after receiving a location request for that UE
Option 3: Completion of UE authentication before positioning
Option 4: Setup of a Mobility Management connection to the UE without a prior location request
Explanation: The transition from LCS IDLE to LOCATION state is triggered after the VMSC/MSC Server verifies the UE's subscription options in response to receiving a request to locate that particular UE. This step precedes the server sending a location request to the RAN, indicating that verification of subscription options is the immediate trigger for this state change.