Patent ID: 9369947
Filing Date: 2016-06-14
CPC Classification: H04L,H04W

Claim Text:
1. A method of discovering a device in a display group transmitting/receiving multimedia content, the method comprising: transmitting, by a communication device, a probe request frame; receiving, by the communication device, a probe response frame including session information on a client connected to a group owner (GO), from the GO among source and sink devices belonging to a first display group, wherein the session information is used to determine whether to associate with the first display group; and configuring a second display group other than the first display group by using a public action frame, wherein the public action frame comprises, a GO negotiation request frame, which is transmitted by the communication device, a GO negotiation response frame which is transmitted by a sink, upon receiving the GO negotiation request frame, and a GO negotiation confirmation frame.