Question: Under what condition is the Radio Link Parameter Update procedure **not** initiated by the DRNS for a UE-UTRAN connection?
Option 1: When the UE is in idle mode.
Option 2: If there's an ongoing handover process.
Option 3: When the signalling bearer connection is not established for the UE context.
Option 4: If a Prepared Reconfiguration already exists.
Explanation: A 'Prepared Reconfiguration' is a state where updates or changes are pending for the UE's connection. Initiating a Radio Link Parameter Update in this state could lead to conflicts, hence it is deferred until the reconfiguration is completed or cleared, ensuring seamless network management.