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

摘要

A broadcast signal receiver according to the present invention comprises: a demodulator for performing OFDM demodulation on a received broadcast signal including a frame for the delivery of a broadcast service: a frame demapper for outputting the frame, the frame including a preamble that contains first signaling information, and a plurality of link-layer-pipes (LLPs) that contain PLP data, second signaling information and third signaling information, with the PLP data including a base layer and an enhancement layer of the broadcast service; and a decoder for decoding the first signaling information, for decoding the second and third signaling information, and for selectively decoding the PLP data by using the third signaling information.

主权项

1. A method for transmitting broadcast signals, the method comprising:
input processing input streams to generate data of PLPs (Physical Layer Pipes) carrying at least one service or at least one service component; encoding the data; mapping the encoded data onto constellations; MIMO (Multiple-Input Multiple-Output) processing the mapped data; time interleaving the MIMO processed data; building at least one signal frame including the time interleaved data; MISO (Multiple-Input Single-Output) processing the built at least one signal frame; modulating data in the MISO processed at least one signal frame by using an OFDM (Orthogonal Frequency Divisional Multiplexing Scheme); and transmitting the broadcast signals including the modulated data.