Abstract: The present invention relates to a device and method for transmitting or receiving media resource identification (MRI) information for managing traffic of a service in a communication system. A method for transmitting information associated with content provision in a communication system according to an embodiment of the present invention comprises the steps of: acquiring content configuration information and transmission scheme information for a content; generating media resource identification information including scheduling information and the transmission scheme information according to each content type on the basis of the content configuration information and the transmission scheme information; and transmitting the media resource identification information.

Abstract: Disclosed is a method by which a multimedia device processes a multimedia packet. To this end, a multimedia packet, which comprises a header including a type information field having type information recorded therein, and a payload including data of a type indicated by the type information, is received, and, when it is recognized that null data is not included in the payload by the type information, the data included in the payload may be processed.

Abstract: The present disclosure relates to a method of transmitting multimedia content in a broadcast communication system, and comprises the steps of: identifying protocol information mapped for each service corresponding to multimedia content; transmitting service-related information including the identified protocol information mapped for each service; and transmitting multimedia content corresponding to related services to a receiving side by using the identified protocol.

Abstract: A method and apparatus for transmitting and receiving content is provided. A method for transmitting content in a transmitter includes generating a file with one or more packages including at least one asset, and transmitting the generated file to a terminal.

Abstract: A method for providing a multimedia service based on unicast, according to the present invention, comprises the steps of: packetizing multimedia data; when a terminal accesses the multimedia service, determining a mode for transmitting the multimedia data to the terminal; generating a signaling message including information on the determined mode, and transmitting the signaling message to the terminal; and transmitting first data among the packetized multimedia data to the terminal on the basis of the determined mode.

Abstract: The present invention relates to an apparatus and a method for configuring a control message in a broadcasting system for supporting a multimedia service based on an interne protocol. To this end, control information to be recorded in a payload of a control message to be configured is generated based on a table selected from among a plurality of tables for defining the information related to the generation and consumption of a hybrid content when a message type of the control message to be configured is determined to be a type for providing information related to the generation and consumption of a hybrid content. In addition, the information related to the type of the selected table is recorded in an optional field of the control message to be configured.

Abstract: The present disclosure provides a data transmission method of a system in an IP based broadcasting network, the data transmission method comprising the steps of: generating an MPEG media transport protocol (MMTP) packet using a media processing unit (MPU) for a service; generating an IP packet using the MMTP packet; generating a layer 2 (L2) packet using the IP packet and generating a layer 1 (L1) packet stream using the L2 packet; and transmitting the L1 packet stream, wherein absolute time information of the system is included in one of a transmission frame of the L1 packet stream and the L2 packet.

Abstract: A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.

Abstract: A method for encoding a packet in a broadcasting system supporting an Internet Protocol (IP)-based multimedia service is provided. The method includes dividing a data stream into data payloads, generating a Motion Picture Expert Group (MPEG) Media Transport (MMT) packet by adding a first header to each of the data payloads, and generating a source packet by adding an MMT packet header to the MMT packet and performing Forward Error Correction (FEC) encoding on the header-added MMT packet. The MMT packet header includes type information of the MMT packet.

Abstract: The present disclosure relates to a method and device for receiving a content by a terminal device. The method for receiving a content by a terminal device comprises the steps of: transmitting a query message requesting content-related information to a first server; receiving a response message including the content-related information from the first server; on the basis of the response message, requesting a content from a second server corresponding to the content-related information; and receiving the content from the second server, wherein the content-related information includes internet protocol (IP) addresses of the second server, pieces of port information, and pieces of media information relating to a content.

Abstract: Disclosed are a method and a device for providing content-related information of a multimedia service. The method comprises the steps of: transmitting a signaling message comprising schedule information and delivery type information of a media content to be serviced; receiving, from at least one terminal, at least one report message comprising identification information and transfer type information of the media content; and transmitting an updated signaling message on the basis of the at least one report message received from the at least one terminal receiving the media content.

Abstract: A method for providing a multimedia service based on unicast, according to the present invention, comprises the steps of: packetizing multimedia data; when a terminal accesses the multimedia service, determining a mode for transmitting the multimedia data to the terminal; generating a signaling message including information on the determined mode, and transmitting the signaling message to the terminal; and transmitting first data among the packetized multimedia data to the terminal on the basis of the determined mode.

Abstract: A method for receiving a multimedia service is provided. The method includes receiving service specific information for at least one multimedia service provided from different networks, selecting one service based on the service specific information, and receiving the selected service. The service specific information includes one of a first service map table including information about at least one service which is transmitted over a plurality of logical channels, and a second service map table including information about at least one service which is transmitted over a single logical channel. Each of the first and second service map tables includes asset-related information.

Abstract: A method for encoding a packet in a broadcasting system supporting an Internet Protocol (IP)-based multimedia service is provided. The method includes dividing a data stream into data payloads, generating a Motion Picture Expert Group (MPEG) Media Transport (MMT) packet by adding a first header to each of the data payloads, and generating a source packet by adding an MMT packet header to the MMT packet and performing Forward Error Correction (FEC) encoding on the header-added MMT packet. The MMT packet header includes type information of the MMT packet.

Abstract: The present disclosure provides a data transmission method of a system in an IP based broadcasting network, the data transmission method comprising the steps of: generating an MPEG media transport protocol (MMTP) packet using a media processing unit (MPU) for a service; generating an IP packet using the MMTP packet; generating a layer 2 (L2) packet using the IP packet and generating a layer 1 (L1) packet stream using the L2 packet; and transmitting the L1 packet stream, wherein absolute time information of the system is included in one of a transmission frame of the L1 packet stream and the L2 packet.

Abstract: According to an embodiment of the disclosure, a method for providing media content comprises the steps of: receiving a change request message for requesting a change of at least a part of specific media data constituting media content; updating a signaling message for the consumption of the media content on the basis of the change request message; and transmitting the updated signaling message to a reception entity.

Abstract: An apparatus and a method for transmitting multimedia data in a broadcast system are provided. A method for constructing a payload for a multimedia frame to be transmitted via a heterogeneous network, in a broadcast system that supports an Internet protocol-based multimedia service, includes dividing the data so as to transmit data of at least one media type and constructing a data region based on each datum of the divided data, constructing a header region including information on the state of the data contained in the data region and/or information on the data region, and combining the data region and the header region to construct a payload for the multimedia frame.

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.