Broadcasting signal transmission device, broadcasting signal reception device, and method for transmitting/receiving broadcasting signal using same

An apparatus for receiving broadcast signals, the apparatus comprising:

• a receiver to receive the broadcast signals;
• a demodulator to demodulate the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme;
• a frame parser configured to parse at least one signal frame from the demodulated broadcast signals,
• wherein each signal frame includes a preamble and a plurality of PLPs (Physical Layer Pipes),
• wherein the preamble located at the beginning of the each signaling frame includes signaling information for each PLP, and
• wherein the each PLP carries at least one broadcast service or at least one broadcast service component and a randomly chosen PLP of the plurality of PLPs is a base PLP;
• a first decoder to decode the signaling information,
• wherein the signaling information includes PLP ID information for identifying each PLP and PLP GROUP information for identifying a PLP group related to corresponding PLPs;
• and
• a second decoder to decode data carried in each PLP in the parsed at least one signal frame based on the decoded signaling information,
• wherein the base PLP carries service signaling data for corresponding PLPs, and
• wherein the signaling information includes identification information for identifying the randomly chosen PLP.

A method for transmitting broadcast signals, the method comprising:

• encoding PLP (Physical Layer Pipes) data carried in each of a plurality of PLPs,
• wherein each PLP carries at least one broadcast service or at least one broadcast service component and a randomly chosen PLP of the plurality of PLPs is a base PLP;
• encoding signaling information for the PLPs,
• wherein the signaling information includes PLP ID information for identifying each PLP and PLP GROUP information for identifying a PLP group related to corresponding PLPs;
• building at least one signal frame including the encoded signaling information and the encoded PLP data,
• wherein the at least one signal frame includes a preamble located at the beginning of the each signaling frame including the encoded signaling information and PLP symbols including the encoded PLP data;
• modulating the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme;
• and
• transmitting the broadcast signals including the modulated signal frame,
• wherein the base PLP carries service signaling data for corresponding PLPs, and
• wherein the signaling information includes identification information for identifying the randomly chosen PLP.

An apparatus for transmitting broadcast signals, the apparatus comprising:

• a first encoder to encode PLP (Physical Layer Pipes) data carried in each of a plurality of PLPs,
• wherein each PLP carries at least one broadcast service or at least one broadcast service component and a randomly chosen PLP of the plurality of PLPs is a base PLP;
• a second encoder to encode signaling information for the PLPs,
• wherein the signaling information includes PLP ID information for identifying each PLP and PLP GROUP information for identifying a PLP group related to corresponding PLPs;
• a frame builder to build at least one signal frame includes the encoded signaling information and the encoded PLP data,
• wherein the at least one signal frame includes a preamble located at the beginning of the each signaling frame including the encoded signaling information and PLP symbols including the encoded PLP data;
• a modulator to modulate the at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme;
• and
• a transmitter to transmit the broadcast signals including the modulated signal frame,
• wherein the base PLP carries service signaling data for corresponding PLPs, and
• wherein the signaling information includes identification information for identifying the randomly chosen PLP.