Method and device for transmitting metadata in WFD

    公开(公告)号:US10750215B2

    公开(公告)日:2020-08-18

    申请号:US15746242

    申请日:2016-07-27

    摘要: 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.

    Method and apparatus for performing data exchange by NAN terminal in wireless communication system

    公开(公告)号:US10659948B2

    公开(公告)日:2020-05-19

    申请号:US16062958

    申请日:2016-12-19

    摘要: 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. In this case, the data request message may be transmitted on the basis of a data request method called by the first NAN terminal, and service protocol type information and port number information, which are returned as a return value, may be included in the data request message and may be transmitted on the basis of the data request method.

    Method for neighbor aware network according to paging scheme and wireless terminal using same

    公开(公告)号:US10548086B2

    公开(公告)日:2020-01-28

    申请号:US15769046

    申请日:2017-02-22

    摘要: 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.

    Method and device for transmitting/receiving data using bluetooth mesh network

    公开(公告)号:US10462661B2

    公开(公告)日:2019-10-29

    申请号:US15570140

    申请日:2016-03-23

    摘要: The present invention relates to a method and a device for a first device transmitting data to a second device in a Bluetooth mesh network. A method and a device may be provided, according to the present invention, wherein an advertising message is received from a second device forming a mesh network, the advertising message comprising a first type field indicating that the advertising message is an advertising message transmitted from a device of the mesh network, and a connection is made to the mesh network on the basis of the advertising message, and a control message comprising a parameter indicating a certain operation is transmitted to the second device through the mesh network, wherein the control message comprises at least one among the address of a first device, the address of the second device, the number of relays as a value, or a second type field indicating the type of the control message.

    Method for wireless connection in wireless LAN system and wireless device using same

    公开(公告)号:US11310649B2

    公开(公告)日:2022-04-19

    申请号:US16971296

    申请日:2019-02-20

    摘要: A method by which a first wireless device performs a wireless connection in a wireless LAN system, according to one embodiment, comprises the steps of: receiving an advertising packet from a second wireless device through a primary channel, wherein the advertising packet includes first information for specifying a Wi-Fi service for the advertising packet and second information linked to the existence of additional data, and the first information is set as a first value linked to a DPP procedure or a second value linked to a NAN procedure; establishing a BLE-based connection with the second wireless device in order to receive the additional data; transmitting, to a second wireless terminal, a request packet for requesting additional data; and receiving, from the second wireless device, a response packet, including the additional data, as a response to the request packet, wherein the additional data is associated with DPP bootstrap URI information of the second wireless device.

    Method and apparatus for reporting battery state in WFD

    公开(公告)号:US10663520B2

    公开(公告)日:2020-05-26

    申请号:US15541867

    申请日:2016-01-07

    摘要: A method and apparatus for outputting a supplementary content in a WFD is disclosed. A method for outputting a supplementary content in a WFD may comprise the steps of: after a WFD source is connected to a WFD, transmitting, by the WFD source, an RTSP-based RTSP parameter request message 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 the capability negotiation procedure is performed, transmitting, by the WFD source, a transmission stream, obtained by overlapping and multiplexing a video stream including video data having first resolution and a supplementary stream including supplementary data having second resolution, to the WFD sink, wherein a WFD discovery response frame may include second resolution-related information for determining the second resolution and an RTSP parameter response frame may include the second resolution-related information.