Question: Upon receiving a Multicast MRB (Media Delivery Multimedia Broadcast) release message, what action does a UE (User Equipment) take for an mrb-Identity value not part of its current configuration that is included in the mrb-ToReleaseList?
Option 1: The UE considers the message erroneous and sends a error report to the network.
Option 2: The UE ignores the mrb-Identity value but continues to process other release instructions without reporting an error.
Option 3: The UE attempts to add the mrb-Identity to its configuration before releasing it.
Option 4: The UE requests clarification from the network for the unrecognized mrb-Identity.
Explanation: If the mrb-ToReleaseList includes an mrb-Identity value not part of the current UE configuration, the UE does not consider the message as erroneous. This means the UE will ignore such values and proceed with releasing only those mrb-Identity values that are part of its current configuration, ensuring continuity and avoiding unnecessary error handling for non-applicable instructions.