Broadcasting receiver and broadcast signal processing method
First Claim
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1. A broadcasting receiver comprising:
- a receiver configured to receive a broadcast signal including a transmission frame, wherein a parade of data groups is received within the transmission frame, each of the data groups including mobile service data, signaling information and a plurality of regions, the plurality of regions including a plurality of data blocks, wherein the signaling information is inserted in a specific data block of the plurality of data blocks;
a signaling information decoder configured to decode the signaling information in each of the data groups, wherein the decoded signaling information includes serial concatenated convolutional coding (SCCC) block mode information indicating a relationship between an SCCC block and a data block and Reed-Solomon (RS) frame mode information indicating a number of RS frames transmitted in the parade;
a block decoder configured to decode the mobile service data in each data of the groups by an SCCC block unit on the basis of the SCCC block mode information;
an RS frame decoder configured to build an RS frame including the decoded mobile service data on the basis of the RS frame mode information and perform RS decoding on the mobile service data in the RS frame;
a derandomizer configured to derandomize the RS-decoded mobile service data; and
a decoder configured to extract parameters from an audio stream included in the derandomized mobile service data and decode the audio stream using the extracted parameters to recover an audio signal.
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Abstract
A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.
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Citations
18 Claims
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1. A broadcasting receiver comprising:
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a receiver configured to receive a broadcast signal including a transmission frame, wherein a parade of data groups is received within the transmission frame, each of the data groups including mobile service data, signaling information and a plurality of regions, the plurality of regions including a plurality of data blocks, wherein the signaling information is inserted in a specific data block of the plurality of data blocks; a signaling information decoder configured to decode the signaling information in each of the data groups, wherein the decoded signaling information includes serial concatenated convolutional coding (SCCC) block mode information indicating a relationship between an SCCC block and a data block and Reed-Solomon (RS) frame mode information indicating a number of RS frames transmitted in the parade; a block decoder configured to decode the mobile service data in each data of the groups by an SCCC block unit on the basis of the SCCC block mode information; an RS frame decoder configured to build an RS frame including the decoded mobile service data on the basis of the RS frame mode information and perform RS decoding on the mobile service data in the RS frame; a derandomizer configured to derandomize the RS-decoded mobile service data; and a decoder configured to extract parameters from an audio stream included in the derandomized mobile service data and decode the audio stream using the extracted parameters to recover an audio signal. - View Dependent Claims (2, 3, 4, 5)
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6. A method for processing a broadcast signal, the method comprising:
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receiving a broadcast signal including a transmission frame, wherein a parade of data groups is received within the transmission frame, each of the data groups including mobile service data, signaling information, and a plurality of regions, the plurality of regions including a plurality of data blocks, wherein the signaling information is inserted in a specific data block of the plurality of data blocks; decoding the signaling information in the each of the data groups, wherein the decoded signaling information includes serial concatenated convolutional coding (SCCC) block mode information indicating a relationship between an SCCC block and a data block and Reed-Solomon (RS) frame mode information indicating a number of RS frames transmitted in the parade; decoding the mobile service data in each of the data groups by an SCCC block unit on the basis of the SCCC block mode information; building an RS frame including the decoded mobile service data on the basis of the RS frame mode information and RS decoding mobile service data in the RS frame; derandomizing the RS-decoded mobile service data; and extracting parameters from an audio stream included in the derandomized mobile service data and decoding the audio stream using the extracted parameters to recover an audio signal. - View Dependent Claims (7, 8, 9, 10)
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11. A method of transmitting a broadcast signal, the method comprising;
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encoding mobile data for forward error correction (FEC) to build Reed-Solomon (RS) frames according to RS frame mode information; block encoding data in the RS frames by a serial concatenated convolutional coding (SCCC) block unit according to SCCC block mode information; encoding signaling information, TPC data and FIC data, wherein the TPC data includes transmission frame information and the FIC data includes binding information between mobile services and ensembles, wherein each of the ensembles includes a collection of consecutive RS Frames with same FEC code, wherein the signaling information includes the SCCC block mode information indicating a relationship between an SCCC block and a data block and the RS frame mode information indicates a number of RS frames transmitted in a parade, the parade including a collection of data groups having same FEC parameters; forming data groups including the encoded mobile data, wherein each of the data groups includes a plurality of regions, the plurality of regions including a plurality of data blocks, and inserting the encoded TPC data, encoded signaling information and encoded FIC data in the data groups, wherein the encoded TPC data, encoded signaling information and encoded FIC data are inserted into specific data blocks of the plurality of data blocks; forming data packets including data in the data groups; multiplexing data in the data packets and main data in main data packets; and transmitting a transmission frame including the multiplexed data during a slot, wherein the data groups include audio signals including parameters, and wherein the parameters are generated on the basis of the audio signals. - View Dependent Claims (12, 13, 14)
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15. An apparatus for transmitting a broadcast signal, the apparatus comprising;
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a first encoder configured to encode mobile data for forward error correction (FEC) to build Reed-Solomon (RS) frames according to RS frame mode information; a block encoder configured to block encode data in the RS frames by a serial concatenated convolutional coding (SCCC) block unit according to SCCC block mode information; a second encoder configured to encode signaling information, wherein the signaling information includes the SCCC block mode information indicating a relationship between an SCCC block and a data block and the RS frame mode information indicates a number of RS frames transmitted in a parade, the parade including a collection of data groups having same FEC parameter; a group formatter configured to form data groups including the encoded mobile data wherein each of the data groups includes a plurality of regions, the plurality of regions including a plurality of data blocks, and to insert the encoded signaling information in the data groups, wherein the encoded signaling information is inserted into specific data blocks of the plurality of data blocks; a packet formatter configured to form data packets including data in the data groups; a multiplexer configured to multiplex data in the data packets and main data in main data packets; and a transmitter configured to transmit a transmission frame including the multiplexed data during a slot, wherein the data groups include audio signals including parameters, and wherein the parameters are generated on the basis of the audio signals. - View Dependent Claims (16, 17, 18)
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Specification