Patent ID: 8391314

Claim:
A method of processing a digital broadcasting signal in a transmitter, the method comprising: performing RS (Reed-Solomon) encoding on signaling data containing cross layer information between a physical layer and a upper layer, wherein the signaling data includes a first field indicating a protocol version change of the signaling data, a second field indicating a length of an extension field of a header included in the signaling data, a first transmission ensemble number field indicating a number of ensembles for a first transmission mode and a second transmission ensemble number field indicating a number of the ensembles for a second transmission mode, and wherein the ensembles include a collection of services, each of the services being a package of packetized streams of mobile service data; forming data groups including the signaling data and the mobile service data; forming mobile service data packets including the signaling data and the mobile service data in the data groups; and transmitting the digital broadcasting signal including the mobile service data packets during slots, wherein the first transmission mode is a mode in which the mobile service data are transmitted while reserving greater than 118 packets out of 156 packets in a slot, wherein the second transmission mode is a mode in which the mobile service data are transmitted while reserving less than or equal to 118 packets out of 156 packets in the slot, and wherein the second field is for causing the first transmission ensemble number field to be skipped at a receiver for the second transmission mode.