Patent ID: 9544389
Date: 2017-01-10
CPC Classifications: H04L,H04W

Claim:
1. A method for operating a switch connected to a controller in a software-defined network (SDN) based mobile communication network, the method comprising: performing, through a mobility management entity (MME), bearer setup with a user equipment (UE) accessed to a based station (BS), the BS connected to a first access cache not storing contents; transmitting, to the controller, information for the bearer setup and an UE internet protocol (IP) address allocated by the MME; receiving, from the UE, a packet for requesting contents; transmitting, to a deep packet inspection (DPI) connected to the controller, header information that is generated based on the packet; receiving, from the controller, a message for setting a path between the UE and a second access cache connected to a neighboring BS, the second access cache storing the contents; and providing, to the UE, the contents transmitted from the second access cache.