Digital broadcast system for transmitting/receiving digital broadcast data, and data processing method for use in the same

A transmitting system comprising:

• a Reed Solomon (RS) frame encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data in order to generate an RS frame belonging to an ensemble comprising a service information table including access information of an IP stream for the mobile service data;
• a signaling encoder for encoding transmission parameter channel (TPC) data and fast information channel (FIC) data with a first encoding code, wherein the FIC data include information for rapid mobile service acquisition, and wherein the TPC data include FIC version information for indicating an update of the FIC data and RS frame mode information for indicating at least a single frame mode or a dual frame mode;
• a block processor for encoding data of the RS frame with a second encoding code;
• a group formatter for mapping the encoded data of the RS frame to data groups, each of the data groups including regions A, B, C and D and comprising the encoded TPC data and FIC data and a plurality of known data sequences, wherein the encoded data of the RS frame are mapped to the regions A, B, C and D of each of the data groups when the RS frame mode information indicates the single frame mode, and wherein the encoded data of the RS frame are mapped to either the regions A and B or the regions C and D of each of the data groups when the RS frame mode information indicates the dual frame mode;
• and
• a transmitting unit for transmitting a broadcast signal comprising data of the data groups,
• wherein the RS frame comprises an RS frame payload including the mobile service data, RS parity data added at bottom ends of columns of the RS frame payload and CRC checksum data added at right ends of rows of the RS frame payload including the RS parity data, and
• wherein the TPC data further include a first-assigned data group number for a parade and a parade identifier for identifying the parade, the parade being a collection of the data groups.

A method of processing a broadcast signal in a receiving system, the method comprising:

• receiving the broadcast signal, the broadcast signal comprising data groups comprising mobile service data, each of the data groups including regions A, B, C and D and comprising a plurality of known data sequences, fast information channel (FIC) data and transmission parameter channel (TPC) data;
• demodulating the received broadcast signal;
• decoding the FIC data and the TPC data of the demodulated broadcast signal,
• wherein the FIC data include information for rapid mobile service acquisition,
• wherein the TPC data include FIC version information for indicating an update of the FIC data, Reed Solomon (RS) frame mode information for indicating at least a single frame mode or a dual frame mode, a first-assigned data group number for a parade and a parade identifier for identifying the parade, the parade being a collection of the data groups,
• wherein data of an RS frame are mapped to the regions A, B, C and D of each of the data groups when the RS frame mode information indicates the single frame mode and
• wherein the data of the RS frame are mapped to either the regions A and B or the regions C and D of each of the data groups when the RS frame mode information indicates the dual frame mode;
• performing Cyclic Redundancy Check (CRC)-decoding and RS-decoding on the RS frame belonging to an ensemble based on information of the TPC data, wherein the RS frame comprises an RS frame payload comprising the mobile service data of the demodulated broadcast signal, RS parity data added at bottom ends of columns of the RS frame payload and CRC checksum data added at right ends of rows of the RS frame payload including the RS parity data, and wherein the ensemble comprises a service information table including access information of an IP stream of the mobile service data;
• acquiring the IP stream of the mobile service data based upon the access information of the service information table;
• and
• decoding audio or video data delivered through the acquired IP stream of the mobile service data.

A receiving system comprising:

• a tuner for receiving a broadcast signal, the broadcast signal comprising data groups comprising mobile service data, each of the data groups including regions A, B, C and D and comprising a plurality of known data sequences, fast information channel (FIC) data and transmission parameter channel (TPC) data;
• a demodulator for demodulating the received broadcast signal;
• a signaling decoder for decoding the FIC data and the TPC data of the demodulated broadcast signal,
• wherein the FIC data include information for rapid mobile service acquisition,
• wherein the TPC data include FIC version information for indicating an update of the FIC data, Reed Solomon (RS) frame mode information for indicating at least a single frame mode or a dual frame mode, a first-assigned data group number for a parade and a parade identifier for identifying the parade, the parade being a collection of the data groups,
• wherein data of an RS frame are mapped to the regions A, B, C and D of each of the data groups when the RS frame mode information indicates the single frame mode and
• wherein the data of the RS frame are mapped to either the regions A and B or the regions C and D of each of the data groups when the RS frame mode information indicates the dual frame mode;
• a first decoder for performing Cyclic Redundancy Check (CRC)-decoding and RS-decoding on the RS frame belonging to an ensemble based on information of the TPC data, wherein the RS frame comprises an RS frame payload including the mobile service data of the demodulated broadcast signal, RS parity data added at bottom ends of columns of the RS frame payload and CRC checksum data added at right ends of rows of the RS frame payload including the RS parity data, and wherein the ensemble comprises a service information table including access information of an IP stream of the mobile service data;
• a processor for acquiring the IP stream of the mobile service data based upon the access information of the service information table;
• and
• a second decoder for decoding audio or video data delivered through the acquired IP stream of the mobile service data.