Page 245 - 5G Basics - Core Network Aspects

Core network aspects 1

Scenario 2: traffic scheduling optimization

Descriptions
The GW is separated into control function and forwarding function, the control function is centralized and
the forwarding function is distributed.

The control function can change the GW forwarding function (GW-U) in a flexible manner according to
network policies for on-going traffic. This improves the bandwidth utilization and users' experience.

Preconditions
The GW is separated into control function and forwarding function, the control function is deployed in
centralized manner and the forwarding function in distributed manner.

Operational flows

Figure I.7 – Traffic scheduling optimization

1) UE accesses mobile access Area 1, and UE traffic goes through GW-U1 and GW-U2.
2) UE moves from mobile access Area 1 to Area 2.
3) GW control function can change GW-U for UE. As shown in Figure I.7, UE traffic will go through GW-
U3 and GW-U4 and the traffic is optimized.

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