Question: What happens to the reserved QoS resources when a User Equipment (UE) initiates a Deregistration procedure via trusted non-3GPP access?
Option 1: The reserved QoS resources are automatically reassigned to another UE.
Option 2: The reserved QoS resources remain active and continue to be used by the UE.
Option 3: The UE releases these resources if they were reserved using Additional QoS Information.
Option 4: The TNGF is responsible for releasing the reserved QoS resources.
Explanation: According to the specified procedure, when a UE initiates a Deregistration procedure via trusted non-3GPP access and has reserved QoS resources using Additional QoS Information, it shall release these resources. This ensures efficient resource management in the network.