Abstract: A method for providing a media service list to a user according to an embodiment of the present disclosure comprises the steps of: acquiring location information of at least one media service list; receiving the at least one media service list on the basis of the location information; generating an integrated media service list by integrating the received at least one media service list; and providing the integrated media service list to a user.

Abstract: A method for transmitting media data according to an embodiment of the present disclosure comprises receiving meta data, converting the meta data into a predetermined format corresponding to a bit stream for media data, incorporating the converted meta data into the bit stream, and transmitting the bit stream incorporating the meta data.

Abstract: A method for providing a broadcast service, according to the present invention, comprises the steps of: if a broadcast service is provided by means of two or more networks, obtaining the maximum value among the fixed end-to-end delay of each network; and, on the basis of the maximum value, controlling an output point of a receiver which received packets of the broadcast service.

Abstract: A method of operating a transmitting apparatus in a multimedia system is provided. The method includes transmitting a data unit of a multimedia service including event information related to an event, wherein the event includes notification to an application, the notification indicating that an action is to be taken.

Abstract: A method for transmitting and receiving an MMT protocol (MMTP) packet by an MPEG media transport (MMT) receiver is disclosed. The method comprises the steps of: by an MMT receiver, establishing a network connection with an MMT transmitter such that an MMTP packet can be transmitted and received; generating a first MMT signaling message; converting the generated first MMT signaling message into a first MMTP packet; transmitting the first MMTP packet by means of the established network connection; receiving a second MMTP packet by means of the established network connection; generating a second MMT signaling message by means of the second MMTP packet; receiving a third MMTP packet; and reconstructing MPU data by means of the third MMTP packet and the second MMT signaling message.

Abstract: The present invention provides a method for a transmission apparatus in a multimedia system. The method comprises a step of transmitting a message including a priority order of media source location information, and three or more pieces of media source location information, wherein the three or more pieces of media source location information include primary media source location information, alternative media source location information and original media source location information.

Abstract: A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: a baseband packet generator configured to, based on an input stream including a first type stream and a second type stream, generate a baseband packet including a header and payload data corresponding to the first type stream; a frame generator configured to generate a frame including the baseband packet; a signal processor configured to perform signal-processing on the generated frame; and a transmitter configured to transmit the signal-processed frame, wherein the header includes a type of the payload data in the baseband packet and the number of the first type stream packets in the baseband packet.

Abstract: The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.

Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: a baseband packet (BBP) generator configured to generate a BBP including a header and payload data; a frame generator configured to generate a frame including the BBP; a signal processor configured to signal-process the generated frame; and a transmitter configured to transmit the signal-processed frame. The header includes information about a type of the payload data, whether an additional header exists, a length of the payload data, and a Least Significant Bit (LSB) of the length of the payload data. Therefore, various types of data are mapped on a physical layer based on information included in the header, and data processing efficiency is improved.

Abstract: A method of operating a transmitting apparatus in a multimedia system is provided. The method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet, wherein the link layer packet includes a header including information indicating whether the link layer packet includes a single network layer packet and information indicating an identifier related to the at least one network layer packet.

Abstract: A transmitting apparatus and an operating method for the apparatus in a multimedia system are provided. The operating method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet. The link layer packet includes a header including information indicating a packet type of the at least one network layer packet, information indicating whether the link layer packet includes a single network layer packet, and information indicating an identifier related to the at least one network layer packet.

Abstract: Various embodiments of the present disclosure propose an apparatus and method for supporting a service for one program through a channel change in a digital broadcasting system. To this end, a broadcast providing device may monitor whether a channel switching event occurs while providing a service for a first program on a first channel on the basis of a predetermined broadcast program schedule. When the channel switching event occurs, before the service for the first program on the first channel ends according to the predetermined broadcast program schedule, the broadcast providing device may transmit, to a broadcast consumer device, connection control information required to continue the service for the first program on a second channel The broadcast consumer device may perform service switching on the basis of the connection control information.

Abstract: A transmitting apparatus, a receiving apparatus and methods of controlling these apparatuses are provided. The transmitting apparatus includes: a baseband packet generator configured to, based on an input stream including a first type stream and a second type stream, generate a baseband packet including a header and payload data corresponding to the first type stream; a frame generator configured to generate a frame including the baseband packet; a signal processor configured to perform signal-processing on the generated frame; and a transmitter configured to transmit the signal-processed frame, wherein the header includes a type of the payload data in the baseband packet and the number of the first type stream packets in the baseband packet.

Abstract: The present invention relates to a method and device for transmitting or receiving a broadcast service including a packet, which is generated using an application layer forward error correction (AL-FEC) scheme, in a multimedia service system. An embodiment of the present invention provides a method for transmitting a broadcast service by a transmitter, the method comprising the steps of: determining one forward error correction (FEC) scheme for a broadcast service among multiple FEC schemes; configuring a signaling message so as to include an identifier indicating the determined FEC scheme; and transmitting the configured signaling message.

Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: a baseband packet (BBP) generator configured to generate a BBP including a header and payload data; a frame generator configured to generate a frame including the BBP; a signal processor configured to signal-process the generated frame; and a transmitter configured to transmit the signal-processed frame. The header includes information about a type of the payload data, whether an additional header exists, a length of the payload data, and a Least Significant Bit (LSB) of the length of the payload data. Therefore, various types of data are mapped on a physical layer based on information included in the header, and data processing efficiency is improved.

Abstract: The present invention relates to a method for transmitting a packet in a communication system, the method comprising: generating drop information indicating at least one source packet to be dropped among source packets to be transmitted and whether or not to drop each of the other source packets except the at least one source packet; performing forward error correction (FEC) encoding on the drop information and the other source packets except the at least one source packet; generating a repair packet comprising repair data for restoring the drop information and a repair symbol for restoring the other source packets except the at least one source packet; and transmitting the other source packets except the at least one source packet and the repair packet.

Abstract: Provided is a method for supporting an immersive media service by a media transmission device. The method comprises the steps of: determining at least one space among a plurality of spaces of interest (SOI) based on SOI description information; and transmitting, to a media reception apparatus, partial SOI description information among the SOI description information and partial immersive media data among immersive media data, wherein the partial SOI description and the partial immersive media data corresponds to the determined at least one SOI, wherein the partial SOI description information includes at least one of identification information for the at least one SOI, a space range indicator for an object of interest (OOI), a priority indicator for the OOI, or an object vector for the OOI.

Abstract: A method of operating a transmitting apparatus in a multimedia system is provided. The method includes inputting at least one network layer packet, generating a link layer packet based on the at least one network layer packet, and transmitting the link layer packet, wherein the link layer packet includes a header including information indicating whether the link layer packet includes a single network layer packet and information indicating an identifier related to the at least one network layer packet.

Abstract: A method for processing a content by a set-top box according to an embodiment of the present disclosure comprises the steps of: receiving a content including an audio stream; and performing bypassing to output the audio stream to a television (TV) through an output interface without performing a decoding operation for the audio stream, wherein the audio stream includes metadata regarding the content.

Abstract: Provided are a transmitting apparatus, a receiving apparatus and controlling methods thereof. The transmitting apparatus includes: at least one processor configured to implement a packet generator which generates a packet including a header and a payload based on a plurality of input packets; and a signal processor which signal-processes the generated packet, and a transmitter configured to transmit the signal-processed packet. A base field included in the header includes a first field set to a first value representing that the base field is a first length or a second value representing that the base field is a second length.