METHOD, APPRATUS, SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR ASSISTING COMMUNICATION BETWEEN TERMINAL BY USING OPENFLOW

摘要

A method for assisting communication between user terminals by using the OpenFlow according to an embodiment of the present invention comprises steps of: (a) an OpenFlow controller acquires information on an IP address allocated to a first user terminal connected to a first femtocell, information on a connection relation between the first femtocell and the first user terminal, information on an IP address allocated to a second user terminal connected to a second femtocell, and information on a connection relation between the second femtocell and the second user terminal; and (b) the OpenFlow controller sets a flow table defining a communication path between the first user terminal and the second user terminal by referring to the IP addresses allocated to the first and the second user terminals, the connection relation between the first femtocell and the first user terminal and the connection relation between the second femtocell and the second user terminal. The present invention may realize P-to-P communication between user terminals affiliated to different communication service providers by using the OpenFLow controller and an OpenFlow switch, without passing through a core network operated by a communication service provider. [Reference numerals] (100) OpenFLow controller; (200) OpenFlow switch; (310) First femtocell; (320) Second femtocell; (410) First user terminal; (420) Second user terminal; (510) First core network; (520) Second core network; (600) Public data network; (AA) Third user terminal; (BB) Fourth user terminal