Abstract: The present specification may provide a method for performing discovery by a seeker terminal in a wireless communication system. In this instance, the method by which a seeker terminal performs discovery may comprise the steps of: transmitting a first frame associated with discovery, by the seeker terminal, to an advertiser terminal; receiving, from the advertiser terminal, a second frame in response to the first frame; and discovering a matching P2P terminal on the basis of the received second frame. The seeker terminal may transmit the first fame by operating in only a search mode, without a listen mode and a scan mode; the advertiser terminal may transmit the second frame by operating in only a listen mode: and the seeker terminal and the advertiser terminal may perform discovery in only a first channel.

Abstract: In the present specification, provided is a method for relaying, by a NAN proxy server, data communication in a wireless communication system. Here, the method for relaying data communication by an NAN proxy server may comprise the steps of: transmitting server capability attribute information of the NAN proxy server to a first NAN proxy client; receiving connection capability attribute information from the first NAN proxy client; transmitting proxy relay request attribute information to the first NAN proxy client; receiving proxy relay response attribute information from the first NAN proxy client; and performing scheduling for the first NAN proxy client and relaying data communication to the first NAN client. Here, the proxy relay request attribute information may be transmitted if information on a direct connection failure is included in the connection capability attribute information.

Abstract: The present specification relates to a method by which a first terminal performs a session handover in a wireless communication system, wherein the method for performing a session handover can comprise the steps of: forming an ASP session with a second terminal by a first connecting method; transmitting a session handover request to the second terminal; receiving a session handover response from the second terminal; and transmitting a session handover confirm to the second terminal, wherein, when the session handover response is received from the second terminal, the formed ASP session can be handed over by a second connecting method.

Abstract: The present invention relates to a method for performing, by a first terminal, service discovery in a wireless communication system. The method for performing service discovery comprises the steps of: transmitting a handover request message to a second terminal by using near field communication (NFC); and receiving a handover selection message from the second terminal by using NFC, wherein the handover selection message may include information on a P2P connection and formation of an ASP session.

Abstract: The present invention relates to a method for a NAN proxy client transitioning a state in a wireless communication system. Here, the method for a NAN proxy client transitioning a state may comprise the steps of: the NAN proxy client transitioning, to a NAN proxy server, a request message requesting the escrowing of a proxy service; receiving a response message from the NAN proxy server; performing registration to the NAN proxy server on the basis of the response message; and the state of the NAN proxy client transitioning. Here, if the registration to the NAN proxy server is performed, the state of the NAN proxy client can be transitioned to a first state.

Abstract: Provided are a method and an apparatus for transmitting metadata in a WFD. More particularly, a WFD source transmits, to a WFD sink, a first transmission stream in which an audio stream and a video stream are superimposed and multiplexed. The WFD source receives, from the WFD sink, a first RTSP request message for requesting transmission of metadata for audio data and video data during the transmission of the first transmission stream. The WFD source transmits, to the WFD sink, a first RTSP response message in response to the first RTSP request message during the transmission of the first transmission stream. The WFD source transmits, to the WFD sink, a metadata stream including the metadata and a second transmission stream in which the audio stream and the video stream are superimposed and multiplexed.

Abstract: The present specification relates to a method for performing discovery by a neighbor awareness networking (NAN) proxy server in a wireless communication system. The method for performing discovery by a proxy server may comprise: a step in which a NAN proxy client performs registration in a NAN proxy server; and a step in which the NAN proxy server performs discovery for a first service on behalf of the NAN proxy server client, wherein information for the first service is delivered to the NAN proxy server in the process of performing registration so as to be used in the discovery, and the discovery can be performed on the basis of the type of discovery.

Abstract: A method for a wireless device including a first module for a local area and a second module for the first module and a remote area according to an exemplary embodiment of this specification may include the steps of transmitting, by a seeker STA having the first module interconnected with the second module, a first version message including first unique information of the seeker STA to an advertiser STA, and receiving a second version message including second unique information from the advertiser STA, storing the first and second unique information as first and second content information, and configuring a service session with the advertiser STA, transmitting the first content information to a wideband server that is associated with the second module, and transmitting a retrieve request message including the second content information for retrieving a remote service for the remote area to the wideband server.

Abstract: In the present specification, provided is a method for relaying, by a NAN proxy server, data communication in a wireless communication system. Here, the method for relaying data communication by an NAN proxy server may comprise the steps of: transmitting server capability attribute information of the NAN proxy server to a first NAN proxy client; receiving connection capability attribute information from the first NAN proxy client; transmitting proxy relay request attribute information to the first NAN proxy client; receiving proxy relay response attribute information from the first NAN proxy client; and performing scheduling for the first NAN proxy client and relaying data communication to the first NAN client. Here, the proxy relay request attribute information may be transmitted if information on a direct connection failure is included in the connection capability attribute information.

Abstract: The present specification may provide a method for a sink device receiving a streaming from a source device in a wireless communication system. In this regard, the method for receiving streaming may comprise the steps of: receiving from the source device streaming over a first transport protocol; transmitting to the source device a first message including information regarding a transport protocol of the sink device when the first transport protocol connection is disconnected; receiving from the source device a second message including information regarding a transport protocol of the source device; and receiving from the source device the streaming over one of the first transport protocol and a second transport protocol.

Abstract: A method for a neighbor aware network (NAN) according to one embodiment of the present specification comprises the steps of: allowing a first terminal to exchange device capability information regarding a scheduling scheme for data communication with a second terminal in a search window; allowing the first terminal to maintain an awake state in a paging window to receive a paging message including identification information indicating a receiving terminal (recipient) for traffic to be received from the second terminal, when a paging scheme is selected by means of the scheduling scheme; and allowing the first terminal to terminate, early, the paging window and switching from the awake state to a sleep state, when a channel evaluation indicator indicating a channel state of a wireless channel according to a signal received at a physical layer of the first terminal is idling for a predetermined threshold time.

Abstract: The present specification relates to a method for performing service discovery by a first terminal in a wireless communication system. Here, the method for performing service discovery by a first terminal may comprise the steps of: performing a service discovery procedure with a second terminal; and establishing a session connection with the second terminal, wherein the service discovery procedure may be performed through an mDNS on the basis of an ASP. In addition, the service discovery procedure may comprise the steps of: exchanging PTR query messages on the basis of the mDNS; and exchanging SRV and TXT query messages on the basis of the mDNS, wherein the TXT record of the SRV and TXT query message may essentially include advertisement ID information for the service.

Abstract: The present specification may provide a method for performing data exchange by NAN terminal in a wireless communication system. In this instance, the method in which the NAN terminal performs data exchange may comprises the steps of: discovering a first service by a first NAN terminal using at least one of a publish message and a subscribe message; transmitting a data request message associated with the discovered first service to a second NAN terminal by the first NAN terminal; receiving a data response message from the second NAN terminal by the first NAN terminal; and performing data exchange relating to the first service with the second NAN terminal by the first NAN terminal.

Abstract: The present specification relates to a method for performing, by a NAN terminal, a data exchange in a wireless communication system.

Abstract: The present specification can provide a method by which a NAN proxy client updates a proxy service in a wireless communication system, wherein the method by which a NAN proxy client updates a proxy service.

Abstract: The present specification relates to a method by which a first terminal performs a session handover in a wireless communication system, wherein the method for performing a session handover can comprise the steps of: forming an ASP session with a second terminal by a first connecting method; transmitting a session handover request to the second terminal; receiving a session handover response from the second terminal; and transmitting a session handover confirm to the second terminal, wherein, when the session handover response is received from the second terminal, the formed ASP session can be handed over by a second connecting method.

Abstract: A method and a device for transmitting metadata in a WFD are provided. Particularly, a WFD source forms a WFD frame including a WFD header and metadata. The WFD source transmits, to a WFD sink, a packet stream created by packetizing a metadata stream including the WFD frame. The WFD header includes a metadata structure field and a metadata update indicator. The metadata structure field indicates whether the metadata has a video metadata structure or an audio metadata structure. The metadata update indicator indicates that previous metadata is updated such that all of the previous metadata is replaced with new metadata, or that the previous metadata is incrementally updated together with updated metadata.

Abstract: A method for processing a voice command through a UIBC may comprise the steps of: transmitting, by a first WFD device, an M3 request message for requesting information on the VCDC capability of a second WFD device to the second WFC device; receiving, by the first WFC device, an M3 response message from the second WFC device in response to the M3 request message, wherein the M3 response message includes input category information and VCDC capability information configured for a VCDC of the second WFD device; transmitting, by the first WFC device, an M4 request message to the second WFD device in an RTSP initialization state, wherein the M4 request message includes the input category information and initial configuration VCDC capability information configured for the VCDC; and receiving, by the first WFD device, an M4 response message from the second WFD device in response to the M4 request message.

Abstract: The present specification relates to a method for a NAN proxy client to perform registration to a NAN proxy server in a wireless communication system. The method for a NAN proxy client to perform registration to a NAN proxy server may comprising: transmitting a subscribe message regarding proxy service search to the NAN proxy server; receiving a publish message from the NAN proxy server; transmitting a proxy registration request message to the NAN proxy server on the basis of proxy service; and receiving a proxy registration response message on the basis of the proxy registration request message.

Abstract: A method for changing an orientation of an image by a WFD sink may comprise the steps of: transmitting, to a second WFD device, an RTSP M3 request message for requesting information on a video stream control RTSP parameter of the second WFD device by a first WFD device; receiving an RTSP M3 response message in response to the RTSP M3 request message from the second WFD device by the first WFD device, wherein the RTSP M3 response message includes a video stream control RTSP parameter for a video stream control capability of the second WFD device, transmitting a first video stream displayed in a first orientation on the second WFD device to the second WFD device by the first WFD device; receiving an RTSP M21 request message from the second WFD device by the first WFD device, wherein the RTSP M21 request message requests a change into a second video stream displayed in a second orientation on the second WFD device of the first video stream; and transmitting an RTSP M21 response message to the second WFD device b