Method for performing channel switch in network converging plurality of communication systems and apparatus for same

A method for performing a channel switch by user equipment of a first communication system in a network converging a plurality of communication systems may comprise the steps of receiving a channel switch command message, which includes a switch time and a new channel number, from a base station of the first communication system; transmitting a channel switch response message, which indicates acceptance of a channel switch when the new channel number is supported by the user equipment, to the base station of the first communication system as a response to the channel switch command message; receiving a channel switch notification message, which notifies of a channel switch, from a base station of the second communication system; and receiving data from the base station of the second communication system via a channel, which corresponds to the new channel number, based on the switch time and the new channel number according to the channel switch notification message.