Gateway apparatus, method for controlling gateway apparatus, and handshaking system

Abstract

A gateway apparatus including a communication circuitry configured to perform a wired connection with a source device and wirelessly connect with a sink device that outputs media; an interface configured to receive a user input from a user or output information to the user; and a controller configured to control the communication circuitry and the interface. The controller is configured to: obtain communication performance information of the sink device and obtain Extended Display Identification Data (EDID) including available output formats of the sink device from the sink device via the communication circuitry, obtain information about an environment in which wireless communication with the sink device is performed from the user via the interface, determine a current maximum transmission rate based on the obtained communication performance information of the sink device and the obtained information about the environment in which wireless communication with the sink device is performed, determine a bitrate required to wirelessly transmit data associated with the media in the available output formats included in the EDID to the sink device for output of the media by the sink device, and determine a non-transmittable format among the available output formats, based on the determined bitrate required and the current maximum transmission rate.