Apparatus and method for transmitting and receiving packet in broadcasting and communication system
First Claim
1. A method for encoding a packet in an application layer of a broadcasting system that supports a multimedia service based on an internet protocol (IP), the method comprising:
- dividing an input source block into a plurality of sub-blocks;
respectively converting the plurality of sub-blocks into a plurality of information blocks including information payloads;
generating a plurality of first repair symbol blocks by encoding each of the information blocks by a first code; and
generating a second repair symbol block by encoding all the information blocks by a second code.
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Accused Products
Abstract
A method and an apparatus for transmitting and receiving a packet in a broadcasting and communication system are provided. The method and apparatus allows a receiver to recognize data in a packet lost due to data loss occurring in a network. To this end, Forward Error Correction (FEC) control-related information is generated, a packet including the generated FEC control-related information is generated, and the packet is transmitted. The FEC control-related information includes at least one of FEC configuration-related information and FEC encoding configuration-related information.
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Citations
32 Claims
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1. A method for encoding a packet in an application layer of a broadcasting system that supports a multimedia service based on an internet protocol (IP), the method comprising:
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dividing an input source block into a plurality of sub-blocks; respectively converting the plurality of sub-blocks into a plurality of information blocks including information payloads; generating a plurality of first repair symbol blocks by encoding each of the information blocks by a first code; and generating a second repair symbol block by encoding all the information blocks by a second code. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 16)
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9. An apparatus for encoding a packet in a broadcasting system that supports a multimedia service based on an internet protocol (IP), the apparatus comprising:
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a transport protocol packetizer configured to divide an input source block into a plurality of sub-blocks, and to respectively convert the plurality of sub-blocks into a plurality of information blocks including information payloads; a first encoder configured to generate a plurality of first repair symbol blocks by encoding each of the information blocks by a first code; and a second encoder configured to generate a second repair symbol block by encoding all the information blocks by a second code. - View Dependent Claims (12, 14, 15)
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17. A method for receiving a packet in a broadcasting system that supports a multimedia service based on an internet protocol (IP), the method comprising:
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demodulating the packet transmitted from a sender; extracting packet-related information from the demodulated packet; determining a Forward Error Correction (FEC) structure applied by a sender based on the packet-related information; and decoding the packet based on the packet-related information, wherein the FEC structure is configured to divide an input source block into a plurality of sub-blocks, respectively convert the plurality of sub-blocks into a plurality of information blocks including information payloads, generate a plurality of first repair symbol blocks by encoding each of the information blocks by a first code and generate a second repair symbol block by encoding all the information blocks by a second code. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for receiving a packet in a broadcasting system that supports a multimedia service based on an internet protocol (IP), the apparatus comprising:
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a demodulator configured to demodulate the packet received from a sender; a controller configured to extract packet-related information from the demodulated packet, and to determine a Forward Error Correction (FEC) structure applied by a sender based on the packet-related information; and a decoder configured to decode the packet based on the packet-related information, wherein the FEC structure is configured to divide an input source block into a plurality of sub-blocks, respectively convert the plurality of sub-blocks into a plurality of information blocks including information payloads, generate a plurality of first repair symbol blocks by encoding each of the information blocks by a first code and generate a second repair symbol block by encoding all the information blocks by a second code. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification