Digital broadcasting system and data processing method
First Claim
1. A method of processing data for a receiver, the method comprising:
- receiving a broadcast signal including mobile service data, signaling data and known data sequences;
demodulating the broadcast signal;
channel-equalizing the demodulated broadcast signal based on at least one of the known data sequences;
decoding fast information channel (FIC) data and transmission parameter channel (TPC) data from the signaling data in the channel-equalized broadcast signal, the FIC data including cross layer information for mobile service acquisition and the TPC data including FIC version information for identifying an update of the FIC data;
turbo-decoding the mobile service data in the channel-equalized broadcast signal;
building a Reed-Solomon (RS) frame including an IP datagram of the turbo-decoded mobile service data, wherein the RS frame comprises a plurality of mobile and handheld (M/H) transport packets, each M/H transport packet including an M-byte header, k bytes of stuffing data and an (N-M-k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the M/H transport packet, and wherein N and M are integers, and k is equal to or greater than 0;
acquiring the IP datagram of the mobile service data from at least one M/H transport packet included in the RS frame; and
decoding at least one of audio and video streams included in the acquired IP datagram.
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Abstract
A digital broadcasting system and a method of processing data are disclosed. A receiving system of the digital broadcasting system may include a signal receiving unit, a demodulating unit, a demultiplexer, and an audio/video decoder. The signal receiving unit receives a broadcast signal including main service data and an RS frame including a plurality of MPH service data packets. The demodulating unit demodulates data of the RS frame. The demultiplexer identifies an MPH service data packet including an IP datagram of mobile service data with reference to an MPH header of each MPH service data packet in the RS frame, and when a stuffing data is inserted in the identified payload of MPH service data packet, removes the stuffing data from the payload and separates an audio and video data from IP datagram of the mobile service data of the payload, and outputs the separated audio and video data.
22 Citations
26 Claims
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1. A method of processing data for a receiver, the method comprising:
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receiving a broadcast signal including mobile service data, signaling data and known data sequences; demodulating the broadcast signal; channel-equalizing the demodulated broadcast signal based on at least one of the known data sequences; decoding fast information channel (FIC) data and transmission parameter channel (TPC) data from the signaling data in the channel-equalized broadcast signal, the FIC data including cross layer information for mobile service acquisition and the TPC data including FIC version information for identifying an update of the FIC data; turbo-decoding the mobile service data in the channel-equalized broadcast signal; building a Reed-Solomon (RS) frame including an IP datagram of the turbo-decoded mobile service data, wherein the RS frame comprises a plurality of mobile and handheld (M/H) transport packets, each M/H transport packet including an M-byte header, k bytes of stuffing data and an (N-M-k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the M/H transport packet, and wherein N and M are integers, and k is equal to or greater than 0; acquiring the IP datagram of the mobile service data from at least one M/H transport packet included in the RS frame; and decoding at least one of audio and video streams included in the acquired IP datagram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A receiver comprising:
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a tuner for receiving a broadcast signal including mobile service data, signaling data and known data sequences; a demodulator for demodulating the broadcast signal; a channel equalizer for channel-equalizing the demodulated broadcast signal based on at least one of the known data sequences; a signaling decoder for decoding fast information channel (FIC) data and transmission parameter channel (TPC) data from the signaling data in the channel-equalized broadcast signal, the FIC data including cross layer information for mobile service acquisition, and the TPC data including FIC version information for identifying an update of the FIC data; a first decoder for turbo-decoding the mobile service data in the channel-equalized broadcast signal; a second decoder for building a Reed-Solomon (RS) frame including an IP datagram of the turbo-decoded mobile service data, wherein the RS frame comprises a plurality of mobile and handheld (M/H) transport packets, each M/H transport packet including an M-byte header, k bytes of stuffing data and an (N-M-k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the M/H transport packet, and wherein N and M are integers, and k is equal to or greater than 0; and a processor for acquiring the IP datagram of the mobile service data from at least one M/H transport packet included in the RS frame and decoding at least one of audio and video streams included in the acquired IP datagram. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification