Question: Upon receiving a modified reporting configuration with an existing reportConfigId, what action does the UE take regarding measurement reporting for each associated measId?
Option 1: Start the periodical reporting timer or timer T321 for this measId if not already running.
Option 2: Update the timeToTrigger value without stopping or resetting any timers for this measId.
Option 3: Remove the measurement reporting entry and stop/reset associated timers (periodical reporting timer or T321).
Option 4: Ignore the received configuration for this measId if an entry with the matching reportConfigId already exists.
Explanation: When a UE receives a modified reporting configuration matching an existing reportConfigId, it updates measurement reporting settings. For each associated measId, this involves removing existing report entries and stopping/resetting relevant timers to align with the new configuration, ensuring the UE reports measurements as per the updated settings.