Abstract: The present invention is related to a method for transmitting and receiving data to and from a web server by using Bluetooth communication in a wireless communication system, comprising receiving a first write request including HTTP (Hyper Text Transfer Protocol) request-related information from a first client device; transmitting to a web server HTTP request-related information generated on the basis of information included in the received first write request; receiving an HTTP response message in response to the HTTP request-related information from the web server; notifying the first client device of an HTTP status code indicating the status of data included in the received HTTP response message; and receiving a read request requesting data transmission on the basis of information included in the HTTP status code from the first client device, wherein, in case a second write request is received from a different client device while the first write request is being received, an error response is transmitted t

Abstract: Disclosed are a method and apparatus for forming, by a first device, forming a Wi-Fi connection with a second device using Bluetooth LE in a wireless communication system, including receiving an advertising message from the second device, forming a Bluetooth LE connection with the second device based on the advertising message, transmitting a first write request message to the second device requesting writing of authentication information necessary for performing Wi-Fi authentication with the third device, wherein the first write request message including the authentication information, receiving a write response message from the second device as a response to the first write request message, and sending a second write request message to request the writing of Opcode indicating a Wi-Fi connection with the third device to the second device.

Abstract: Disclosed is a method of a first device being controlled by a control device in a group including the first device and a plurality of devices in a Bluetooth mesh network and a device performing the method. The method includes joining the Bluetooth mesh network, receiving a control message instructing the execution of a specific operation from the control device, and performing the specific operation based on the control message. The specific operation may be sequentially performed by the first device and the plurality of devices.

Abstract: Provided is a media content receiving method of a media content receiving device. The method includes: receiving information on a content location information file; receiving the content location information file by using the information on the content location information file; measuring a current bandwidth; requesting a first media content through a first network on the basis of the current bandwidth and the content location information file; receiving the first media content through the first network; and consuming the first media content.

Abstract: Disclosed are a method and device for transmitting and receiving broadcast signals. The disclosed reception method comprises a step for extracting second program table information which indicates the association properties between a plurality of programs, the programs being obtained by using a broadcast stream which comprises at least one program, program table information which indicates the broadcast stream, and at least one broadcast service, from a received broadcast signal. The method further comprises a step for parsing the broadcast stream by using the extracted program table information; and a step for acquiring information about the groups to which the plurality of programs belong by using the extracted second program table information.

Abstract: A video display apparatus pairs with a first terminal device. The video display apparatus receives an audio-visual content, and displays the audio-visual content. The video display apparatus acquires enhanced service information on an available enhanced service for the audio-visual content, and notifies an occurrence of the available enhanced service to the first terminal device.

Abstract: A method for transmitting and receiving data of a sink device by using HDMI is disclosed. A method for transmitting and receiving data of a sink device by using HDMI comprises receiving video data through at least one channel of HDMI from a source device; generating an error counter value by performing CED (Character Error Detection) on the received video data; in case the error counter value exceeds a threshold value, transmitting to the source device a CEC message requesting resolution change of the video data; and receiving video data with a resolution changed according to the CEC message from the source device.

Abstract: The present invention relates to a method and an apparatus for connecting a first device to a second device using Bluetooth low energy (LE). According to the present invention, provided are a method and an apparatus which receive, from the second device, a first advertising message comprising first interval information indicative of the transmission interval of the advertising message; adjust the size of a scan window for searching for peripheral devices on the basis of the first advertising message; receive a second advertising message from the second device or an external device via the scan window; and establish a Bluetooth LE connection with the second device if the transmission interval indicated by the interval information is the same as the interval at which the first advertising message and the second advertising message are transmitted.

Abstract: A method for transmitting and receiving data in a wireless communication system, performed by a first device, includes transmitting a first message including device connection information to at least one second device via a first network, receiving a response with respect to the first message from the at least one second device via the first network, transmitting a connection request message for requesting wireless connection of a second network to the at least one second device via the first network on the basis of the response, the connection request message including information regarding connection of a network indicating the second network, receiving a connection response message corresponding to a response with respect to the connection request message from the at least one second device via the first network, and transmitting and receiving data to and from a second device via the second network.

Abstract: The present invention relates to a method and apparatus for performing communication using wi-fi between devices. The method includes: scanning channels that are available to gather information related to surroundings: transmitting a probe request frame through a social channel for searching devices that are to perform communication; receiving a probe response frame from the second device through a listen channel in response to the probe request frame in a listen state; and performing a group owner negotiation with the second device in order to determine a group owner, wherein the listen channel is included in the social channel, and wherein the probe request frame is transmitted from each social channel, and a predetermined hold time is present for receiving the probe response frame after transmitting the probe request frame in each social channel.

Abstract: Disclosed herein are a photovoltaic module and a photovoltaic system including the photovoltaic module. The photovoltaic module includes a solar cell module having a plurality of solar cells, an inverter to convert DC power from the solar cell module to AC power, a cable to output the AC power from the inverter, and an infrared (IR) communication unit to transmit, at least one of voltage information of the solar cell module, current information of the solar cell module, voltage information of the inverter, and current information of the inverter, to an adjacent first photovoltaic module, an external gateway, or an external IR communication device. Thereby, communication with an external terminal can be easily performed.

Abstract: A data transmission and reception method for a sink device which is connected to a plurality of source devices by means of a high definition multimedia interface (HDMI), according to an embodiment of the present invention, comprises the steps of: receiving an allocation of an internet protocol (IP) address; transmitting device information about a sink device to a control point through a network; and transmitting service information about a supportable service by the sink device to the control point through the network.

Abstract: Provided is a method of a receiver to receive a broadcast service. The method includes: receiving a content; obtaining information on an adjunct service of the broadcast service from the content; transmitting a trigger request according to the information on the adjunct service; receiving at least one trigger in response to the request; and performing a trigger action on a trigger target object at a trigger time on the basis of the received at least one trigger, wherein the received at least one trigger is located in a specific time segment.

Abstract: Provided is a media content receiving method of a media content receiving device. The method includes: receiving information on a content location information file; receiving the content location information file by using the information on the content location information file; measuring a current bandwidth; requesting a first media content through a first network on the basis of the current bandwidth and the content location information file; receiving the first media content through the first network; and consuming the first media content.

Abstract: A method for transmitting and receiving data of a source device using HDMI (High Definition Media Interface) is disclosed. A method for transmitting and receiving data of a source device using HDMI according to the present invention comprises requesting for reading out EDID (Extended Display Identification Data) to a sink device when the sink device is connected; receiving from the sink device EDID including power delivery support information of the sink device; transmitting required power characteristic information of the source device; and receiving power according to the required power characteristic information.

Abstract: The present invention relates to a method for transmitting/receiving contents through a network such as the Internet, and to a transmitter/receiver using same, the transmission method comprising: converting content stored in a file format into a delivery format; and transmitting the content converted into the delivery format using an IP packet, wherein the delivery format includes indicator information for expressing whether a program clock reference (PCR) has been transmitted to the IP packet.

Abstract: Disclosed are a method and apparatus for forming a connection between devices using a Bluetooth low energy (BLE) technology. The method for forming a connection between a first device and a second device using BLE includes receiving an advertising message including information related to a pairing control service from the first device, establishing a Bluetooth connection with the first device based on the advertising message, transmitting a first write request message requesting writing of connection request information indicating transmission of a connection request message to the second device included in pairing control point information through Bluetooth, and receiving a first indication message including connection state information indicating a state of a connection with the second device from the first device, wherein the pairing control point indicates information instructing the first device to perform a specific operation.

Abstract: The present invention relates to Bluetooth connection methods and apparatuses. An embodiment of the present invention provides a Bluetooth connection method, including transmitting, by a Bluetooth LE module, a packet to request device information, receiving a packet related to the device information from at least one connectable Bluetooth LE module, and discovering the at least one connectable Bluetooth LE module; transmitting, by the Bluetooth LE module, a packet indicative of connection with the discovered at least one connectable Bluetooth LE module and connecting the discovered at least one connectable Bluetooth LE module; and transmitting data to the discovered at least one connectable Bluetooth LE module or at least one Bluetooth BR/EDR module corresponding to the discovered at least one connectable Bluetooth LE module.

Abstract: Disclosed herein is a method for performing communication using Bluetooth low energy (BLE) in a wireless communication system including a server device and a client device. The client device receives object changed indication information including object identification information indicative of a changed object from the server device. The object identification information includes the name of the changed object or the identifier (ID) of the changed object.

Abstract: Provided are a method and device for transmitting/receiving media content via internet. The method includes: configuring the media content with a plurality of representations; dividing the configured representation into a plurality segments; aligning subsegments in the segment; and transmitting one of the representations, wherein the subsegments are aligned to allow the earliest presentation time of the kth subsegment in the first representation to be greater than the latest presentation time of the k?1th subsegment in the second representation among the representations.