Patent ID: 9591550
Date: 2017-03-07
CPC Classifications: H04L,H04W

Claim:
1. A method for operating a switch in a communication network, comprising: receiving information on a path between a first user equipment (UE) accessed to a base station (BS) and a second UE accessed to another BS, from a controller, wherein the first UE is connected to a first access-openflow switch (A-OFS) and a second UE is connected to a second A-OFS; and transmitting, to the second UE, a voice packet received from the BS according to the information on the path, wherein the path is determined to pass through a tunnel that is formed between first A-OFS and the second A-OFS by using a tunneling protocol based on information of the voice packet and quality of service (QoS) information, and wherein the information of the voice packet and the QoS information are transmitted to the controller from an interne protocol multimedia subsystem (IMS) server.