Question: For a User Equipment (UE) supporting Access Class Barring for Differentiated Classes (ACDC), what is the requirement regarding barring checks in relation to network parameters?
Option 1: Optional support for barring checks based on common PLMN parameters only.
Option 2: Mandatory support for barring checks based solely on per-PLMN barring parameters for ACDC.
Option 3: Mandatory support for barring checks subject to both common and per-PLMN barring parameters for ACDC.
Option 4: No requirement for barring checks if the UE supports ACDC for at least one access class.
Explanation: UEs supporting access subject to ACDC must perform barring checks based on both common and per-PLMN barring parameters. This ensures standardized yet customizable access control, balancing accessibility with network management needs.