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 building at least primary RS frames belonging to a primary ensemble or secondary RS frames belonging to a secondary ensemble depending on RS frame mode information that indicates a single frame mode or a dual frame mode;
• mapping each of the built at least primary or secondary RS frames into groups, wherein each of the groups comprises known data sequences, a fast information channel (FIC) segment, and transmission parameter channel (TPC) data;
• and
• transmitting a transmission frame containing the groups,
• wherein at least one FIC segment transmitted through the transmission frame includes status information of a mobile service, wherein at least one FIC segment transmitted through the transmission frame includes an ensemble identifier to identify one of the primary ensemble and the secondary ensemble,
• wherein the status information of the mobile service is assigned with two bits, wherein a first bit indicates whether the mobile service is active or inactive, and a second bit indicates whether the mobile service is hidden or not,
• wherein the ensemble identifier comprises a parade identifier to identify a parade which carries at least the primary ensemble or the secondary ensemble, and
• wherein the TPC data include FIC version information, the RS frame mode information and the parade identifier.