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:
A method for sending forward error correction (FEC) configuration information by a sending apparatus in a multimedia system is provided. The method includes sending source FEC configuration information for an FEC source packet to a receiving apparatus, wherein the source FEC configuration information includes information related to an FEC source or repair packet that is sent first among at least one FEC source or repair packet if an FEC source or repair packet block includes the at least one FEC source or repair packet.
Abstract:
The present disclosure relates to a method and a device for transmitting and receiving a packet in a communication system. A method for transmitting a packet according to the present disclosure comprises the steps of: generating at least one source block including source packets for transmitting contents; performing forward error correction (FEC) encoding and generating at least one reconstructed block including reconstructed packets for restoring the source packets; and transmitting signaling information including packet identification information on the at least one source block and a packet stream including the source packets and the reconstructed packets, wherein header information of the reconstructed packets includes the number of source packets included in each source block according to the packet identification information, and information indicating the start numbers of the source packets included in the each source block.
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:
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 and an apparatus for transmitting and receiving a packet in a broadcasting and communication system are provided. The method includes splitting a source packet block including source packets into a plurality of source packet subblocks, converting the source packet subblocks to source symbol subblocks, respectively, generating a plurality of first repair symbol blocks by encoding the source packet subblocks using a first error correction code, configuring an error correction source packet by adding a source error correction payload IDentifier (ID) to source symbols included in the source symbol subblocks and configuring an error correction repair packet by adding a repair error correction payload ID to repair symbols included in the first repair symbol subblocks, and transmitting the error correction source packet and the error correction repair packet.
Abstract:
A method for transmitting a packet in a communication system is provided. The method includes dividing a data stream into data payloads of a predetermined size and adding a common header to each of the data payloads, to generate a source payload, adding a first Forward Error Correction (FEC) payload Identifier (ID) to the source payload and applying an FEC code thereto, to generate an FEC source packet for a source payload, adding a second FEC payload ID to at least one parity payload and applying an FEC code thereto, to generate an FEC parity packet for the at least one parity payload, and transmitting the FEC source packet and the FEC parity packet.
Abstract:
The present invention provides a method and an apparatus for reproducing multimedia data in a broadcasting and communication system. The apparatus for reproducing multimedia data according to an embodiment of the present invention comprises: a receiver for receiving multimedia data; a data processor for processing the received multimedia data and extracting a data unit and signaling information; a synchronization information processor for extracting synchronization information related to a broadcasting image provided by a current service from the signaling information; a service demultiplexer for extracting audio data or video data from the data unit; and a broadcasting image reproducer for decoding the audio data or video data, and reproducing the decoded audio data or decoded video data on the basis of the synchronization information.
Abstract:
A method for transmitting a packet in a communication system is provided. The method includes dividing a data stream into data payloads of a predetermined size and adding a common header to each of the data payloads, to generate a source payload, adding a first Forward Error Correction (FEC) payload Identifier (ID) to the source payload and applying an FEC code thereto, to generate an FEC source packet for a source payload, adding a second FEC payload ID to at least one parity payload and applying an FEC code thereto, to generate an FEC parity packet for the at least one parity payload, and transmitting the FEC source packet and the FEC parity packet.
Abstract:
A method for providing a broadcast service in a transmitting device is provided. The method includes classifying signaling information for contents provided by the broadcast service, based on a type of the information and a transmission network, and transmitting the classified signaling information.