depicts an uplink streaming architecture where RAN signalling is employed to support uplink Network Assistance functionality.
The RAN in the architecture contains control plane and user plane entities that interact with peer control and user plane entities in the UE, in the request/response for boost of the uplink streaming data rate, and subsequent media transport. The user plane functionality as shown in Figure 6.7-1
(solid line going from UE to RAN to 5GMSu AS) illustrates the scheduling/passthrough functionality associated with user plane communications, governed by the RAN, as result of the uplink assistance messaging over the control plane (shown by dotted line between the UE and RAN). It is assumed in this case that 5GMSu AF-based Network Assistance is not utilized.
It should be noted that although the 5GMSu AF is not utilized when RAN signaling based network assistance is performed, it is assumed that there is a higher level network entity which coordinates and tracks network assistance performed using RAN signaling versus application signaling for individual UEs.