Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers

A receiver for receiving broadcast signals, the receiver comprising:

• a tuner for receiving the broadcast signals carrying signal frames;
• a demodulator for demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplex (OFDM) scheme;
• a frame demapper for parsing the signal frames,
• wherein the signal frames include Physical-Layer-Pipe (PLP) data for PLPs and a first layer information,
• wherein the first layer information has modulation information of a PLP among the PLPs,
• wherein the signal frames include a first PLP carrying mapping information between a PLP and a component of a service, and
• wherein the signal frames further include a second PLP containing a second layer information;
• a time-deinterleaver for time-de-interleaving the PLPs in the signal frames;
• a Multiple-Input-Multiple-Output (MIMO) decoder for MIMO-decoding the time-de-interleaved PLPs in the signal frames;
• a symbol de-mapper for symbol de-mapping the MIMO-decoded PLPs;
• a decoder for decoding the de-mapped PLPs for forward error correction;
• and
• a processor for processing the decoded PLPs to data streams,
• wherein the signal frames further include compression information of Internet Protocol (PI) packets when the IP packets carries the component.