公开(公告)号：US10194381B2

公开(公告)日：2019-01-29

申请号：US15737046

申请日：2016-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol Kim ,  Byungjoo Lee ,  Hyunhee Park ,  Giwon Park ,  Taesung Lim

IPC: H04W4/06 ,  H04W48/16 ,  H04L29/08 ,  H04W84/12 ,  H04L29/12 ,  H04L12/18

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.

公开(公告)号：US20180249512A1

公开(公告)日：2018-08-30

申请号：US15754475

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Dongcheol Kim ,  Byungjoo Lee ,  Youngjun Jo ,  Taesung Lim

IPC: H04W76/10 ,  H04L29/06 ,  H04N21/4363 ,  H04N21/435 ,  H04N21/2368

CPC classification number: H04W76/10 ,  H04L65/608 ,  H04L65/80 ,  H04N21/2368 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/43637 ,  H04N21/64322 ,  H04W84/12

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.

公开(公告)号：US11611604B2

公开(公告)日：2023-03-21

申请号：US17345456

申请日：2021-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Youngjun Jo ,  Taesung Lim

IPC: G06F15/16 ,  H04L65/65 ,  H04L67/104 ,  H04W76/14 ,  H04L65/1069

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.

公开(公告)号：US11064003B2

公开(公告)日：2021-07-13

申请号：US16082524

申请日：2017-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Youngjun Jo ,  Taesung Lim

IPC: G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  H04W76/14

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.

公开(公告)号：US10708964B2

公开(公告)日：2020-07-07

申请号：US15748587

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Byungjoo Lee ,  Giwon Park ,  Dongcheol Kim ,  Youngjun Jo ,  Hyunhee Park ,  Taesung Lim

IPC: H04W4/80 ,  H04W88/06 ,  H04W76/14 ,  H04W76/10 ,  H04L29/08 ,  H04W92/18 ,  H04W8/00 ,  H04W84/12

Abstract: The present specification may provide a method for forming, by a searcher terminal, an application service platform session with an advertiser terminal in a wireless communication system. The method for forming an application service platform session may comprise the steps of: performing discovery for the advertiser terminal and a first service; and forming an ASP session for the first service by performing connection with the advertiser terminal on the basis of a result of the performed discovery, wherein the discovery and the connection may be performed through at least one of multiple interfaces supported by application service platforms of the searcher terminal and the advertiser terminal when the searcher terminal and the advertiser terminal are first type terminals, and the discovery and the connection may be performed through a Wi-Fi direct interface when one of the searcher terminal and the advertiser terminal is the first type terminal and the other is a second type terminal.

公开(公告)号：US10542410B2

公开(公告)日：2020-01-21

申请号：US15757331

申请日：2016-09-02

Applicant: LG ELECTRONICS INC.

Inventor： Byungjoo Lee ,  Dongcheol Kim ,  Giwon Park ,  Youngjun Jo ,  Taesung Lim

IPC: H04W8/08 ,  H04W8/00 ,  H04W76/10 ,  H04W80/10 ,  H04W92/18 ,  H04W76/14 ,  H04W4/80

Abstract: A method is provided for a first terminal performing connection capability exchange in a wireless communication system. The method includes transmitting, to a second terminal, a P2P probe request frame for a service discovery, receiving, from the second terminal, a P2P probe response frame for the service discovery, establishing of a connection with the second terminal and forming an ASP session with the second terminal. The P2P probe request frame and the P2P probe response frame include connection capability exchange information and establishing the connection is performed based on the connection capability exchange information.

公开(公告)号：US10383010B2

公开(公告)日：2019-08-13

申请号：US15566948

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol Kim ,  Giwon Park ,  Byungjoo Lee ,  Hyunhee Park ,  Taesung Lim

IPC: H04W4/00 ,  H04W36/00 ,  H04L29/08 ,  H04W4/80 ,  H04W48/08 ,  H04W48/16 ,  H04W8/00 ,  H04W48/14 ,  H04W76/14 ,  H04W84/12 ,  H04W84/18

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.

公开(公告)号：US10356829B2

公开(公告)日：2019-07-16

申请号：US15754475

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Dongcheol Kim ,  Byungjoo Lee ,  Youngjun Jo ,  Taesung Lim

IPC: H04N21/4363 ,  H04W76/10 ,  H04L29/06 ,  H04N21/2368 ,  H04N21/435 ,  H04W84/12

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.

公开(公告)号：US10034047B2

公开(公告)日：2018-07-24

申请号：US15534914

申请日：2015-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Hyunhee Park ,  Taesung Lim

IPC: H04N7/15 ,  H04N21/4402 ,  H04W8/00 ,  H04W84/12 ,  H04N21/6437

Abstract: A method and apparatus for outputting a supplementary content from a WFD is disclosed. The method for outputting a supplementary content from a WFD may comprise the steps of: after a WFD source is connected to a WFD, transmitting, by the WFD source, an RTSP parameter request message on the basis of an RTSP to a WFD sink in order to perform a capability negotiation procedure with the WFD sink; transmitting, by the WFD source, an RTSP parameter response message to the WFD sink in response to the RTSP parameter request message; and after performing the capability negotiation procedure, transmitting, by the WFD source, a transmission stream, obtained by overlapping and multiplexing a video stream including video data having a first resolution and a supplementary stream including supplementary data having a second resolution, to the WFD sink, wherein a WFD discovery response frame includes second resolution-related information for determining the second resolution, and an RTSP parameter response frame includes the second resolution-related information.

公开(公告)号：US20180098211A1

公开(公告)日：2018-04-05

申请号：US15567027

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Giwon Park ,  Taesung Lim ,  Youngjun Jo

IPC: H04W8/06 ,  H04W8/08 ,  H04W60/06 ,  H04W84/18

CPC classification number: H04W8/06 ,  H04W8/08 ,  H04W60/00 ,  H04W60/06 ,  H04W84/18 ,  Y02D70/122 ,  Y02D70/126

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.