Patent ID: 8175065

Claim:
A method of transmitting a broadcast signal in a transmitter, the method comprising: multiplexing mobile data and main data; and transmitting a transmission frame including the multiplexed mobile and main data, wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data, wherein each data group includes the mobile data, signaling information and regularly spaced known data sequences, wherein the signaling information includes fast information channel (FIC) data having binding information between a service of the mobile data and an ensemble and transmission parameter channel (TPC) data indicating a version of the FIC data, wherein the FIC data includes an identifier of the ensemble and information indicating a number of services carried through the ensemble, wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment includes an FIC segment header and is transmitted in each of the data groups, wherein the ensemble includes the service and a signaling table describing the service, and wherein the ensemble is RS-CRC (Reed Solomon—cyclic redundancy check) encoded through a 2-dimensional Reed-Solomon (RS) frame; and each row of a payload of the RS frame includes a transport packet of the mobile data; wherein the signaling table includes a service map table (SMT) which provides IP address information and IP component level information for the service; wherein the SMT includes a flag indicating whether or not the IP address information is an IPv4 address.