Method of transmitting and receiving data in network environment with wired and wireless networks bridged using relay portal

Abstract

A method of transmitting and receiving data in a network environment with a wired network and a wireless network bridged using a relay portal is provided. The method includes choosing one of a plurality of portals sharing a wired network and a wireless network as a relay portal, and transmitting a data packet to the wired network by setting an identifier of the relay portal as a prioritized receiver of the data packet.

1 . A frame comprising:
 an identifier of a receiving device which is to receive data;   an identifier of a sending device which transmits the data; and   an identifier of one of a plurality of portals in a wireless network to which the sending device is connected, the data prioritized such that the data is transmitted to the connected portal.   
     
     
         2 . The frame of  claim 1 , further comprising a frame control field, wherein the frame control field comprises:
 information indicating whether the sending device is connected to at least one of a first wireless network and a first wired network; and   information indicating whether the receiving device is connected to at least one of a second wireless network and a second wired network.   
     
     
         3 . The frame of  claim 1 , wherein the frame is transmitted by a portal identified by a portal identifier if the frame is transmitted from the wireless network to a wired network.