Question: Under what condition should an SRNS (Serving Radio Network Subsystem) NOT initiate the Dedicated Measurement Initiation procedure towards a DRNS (Drift Radio Network Subsystem) for a specific UE (User Equipment)?
Option 1: When the UE is in idle mode.
Option 2: If the dedicated measurement is not supported by the UE.
Option 3: If a Prepared Reconfiguration already exists for the UE Context.
Option 4: When the signalling bearer connection is not established.
Explanation: This is correct because the Dedicated Measurement Initiation procedure shall not be initiated if a Prepared Reconfiguration exists, ensuring ongoing or pending reconfigurations are prioritized or resolved before new measurement initiatives, avoiding conflicts or unnecessary network operations for the UE Context.