Apparatus and method for sending and receiving broadcast signals

A device for processing a broadcast signal, comprising:

• a tuner configured to receive the broadcast signal carrying a bootstrap prefixed to the beginning of a signal frame,
• the bootstrap including one or more bootstrap symbols, a last bootstrap symbol immediately followed by a preamble of the signal frame including bootstrap termination information, the bootstrap including first information for representing a structure of the preamble;
• a demodulator configured to demodulate the broadcast signal;
• a de-framer configured to de-frame the signal frame in the broadcast signal to output the preamble and physical layer pipe (PLP) data, the preamble carrying Layer 1 (L1) signaling data for the signal frame, wherein:
• the preamble includes a plurality of preamble symbols,
• a foremost preamble symbol of the preamble symbols includes second information for indicating a number of remaining preamble symbols, and
• the foremost preamble symbol uses a minimum number of carriers (NoC) and the foremost preamble symbol further includes third information related to NoC for the remaining preamble symbols;
• a signaling decoder configured to decode the L1 signaling data;
• and
• a decoder to decode the PLP data based on the L1 signaling data.