Question: What is the primary function of User Plane protocols in the NG-RAN architecture?
Option 1: To control PDU Sessions and connections between UE and the network.
Option 2: To implement security mechanisms for user data transmission.
Option 3: To carry user data through the access stratum, implementing the actual PDU Session service.
Option 4: To manage Quality of Service (QoS) for different types of traffic.
Explanation: User Plane protocols are responsible for carrying user data through the access stratum, which means they implement the actual PDU Session service. This is in contrast to Control Plane protocols, which focus on controlling PDU Sessions and connections between UE and the network.