Question: Upon expiry or stop of T331, what action is mandated for the User Equipment (UE) regarding VarMeasIdleConfig?
Option 1: Release the VarMeasIdleConfig.
Option 2: Continue with the existing VarMeasIdleConfig settings without change.
Option 3: Suspend VarMeasIdleConfig until further instruction from the network.
Option 4: Automatically trigger a new measurement configuration based on SIB1.
Explanation: According to RRC protocol behavior, upon T331 expiry or stop, the UE is required to release (i.e., terminate or cancel) the VarMeasIdleConfig. This action ensures alignment with state management rules, potentially impacting how the UE manages measurements in idle mode.