Digital broadcasting system and method of processing data in digital broadcasting system

A method of processing broadcast data in a broadcast transmitter, the method comprising:

• performing, by a Reed Solomon (RS) encoder, RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data and a signaling information table including access information and status information of the mobile service data, thereby forming an RS frame;
• dividing the RS frame into a plurality of groups, wherein each group includes a portion of data included in the RS frame, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data;
• and
• transmitting a broadcast signal including the plurality of groups,
• wherein the FIC data includes information for rapid mobile service acquisition, wherein the TPC data includes FIC version information for indicating an update of the FIC data, and wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

A broadcast transmitter comprising:

• an RS encoder for performing Reed Solomon (RS) encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data and a signaling information table, the signaling information including access information and status information of the mobile service data, thereby forming an RS frame;
• a group formatting means for dividing the RS frame into a plurality of groups, wherein each group includes a portion of data included in the RS frame, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data;
• and
• a transmitting means for transmitting a broadcast signal including the plurality of groups,
• wherein the FIC data includes information for rapid mobile service acquisition, wherein the TPC data includes FIC version information for indicating an update of the FIC data, and wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

A method of processing broadcast data in a broadcast receiver, the method comprising:

• receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information and status information of the mobile service data, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the mobile service data and the signaling information table are encapsulated into at least one of a plurality of RS frames;
• demodulating the received broadcast signal;
• compensating channel distortion of the demodulated broadcast signal based upon at least one of the known data sequences;
• extracting the signaling information table from the demodulated broadcast signal;
• acquiring the status information of the mobile service data from the extracted signaling information table;
• and
• determining availability of the mobile service data using the status information,
• wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data, wherein the at least one of a plurality of RS frames is divided into a plurality of groups, each group including a portion of data included in the RS frame, the known data sequences, the FIC data, and the TPC data, and wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

A broadcast receiver comprising:

• a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information and status information of the mobile service data, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the mobile service data and the signaling information table are encapsulated into at least one of a plurality of RS frames;
• a demodulator for demodulating the received broadcast signal;
• an equalizer for compensating channel distortion of the demodulated broadcast signal based upon at least one of the known data sequences;
• a first handler for extracting the signaling information table from the demodulated broadcast signal and acquiring the status information of the mobile service data from the extracted signaling information table;
• and
• a second handler for determining availability of the mobile service data using the status information,
• wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data, wherein the at least one of a plurality of RS frames is divided into a plurality of groups, each group including a portion of data included in the RS frame, the known data sequences, the FIC data, and the TPC data, and wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.