Patent ID: 9532297
Filing Date: 2016-12-27
CPC Classification: H04W

Claim Text:
1. A software defined network supporting mobile services, comprising: a controller, configured to manage a topology and routing actions of the software defined network; a plurality of switches, coupled to the controller; and a plurality of edge devices, coupled to the controller and the switches, wherein when a user equipment attaches to a target edge device in the edge devices, the target edge device transmits a notification message to the controller, and the controller updates flow entries in the switches and the edge devices according to the notification message, wherein the controller updates flow entries related to the user equipment in a corresponding zone of the target edge device according to the notification message; for each one of the edge devices, a corresponding zone of the one edge device comprises each of the edge devices within a handover range of the one edge device and each of the switches coupled between each of the edge devices within the handover range and a remote network, wherein in the updating of the flow entries related to the user equipment, the controller updates in priority the flow entries related to the user equipment in a current routing path, the current routing path comprises the target edge device and each of the switches coupled between the target edge device and the remote network.