Transmitter, receiver, and controlling methods thereof

摘要

A transmitter and receiver of a broadcast signal and corresponding methods are provided. The transmitter includes: a preamble symbol inserter configured to insert a preamble symbol including a synchronization part and an information part into a frame; and a transmitting unit configured to transmit the frame including the preamble symbol. The synchronization part includes a plurality of first sequences for measuring frequency offset of the preamble symbol, and the information part includes a plurality of second sequences for measuring a phase shift amount of the information part.

主权项

1. A transmitting apparatus comprising:
a preamble symbol inserter configured to insert a preamble symbol comprising a synchronization part and an information part into a frame; and a transmitter configured to transmit the frame comprising the preamble symbol, wherein the synchronization part comprises a plurality of first sequences for measuring frequency offset of the preamble symbol, and the information part comprises a plurality of second sequences for measuring a phase shift amount of the information part, wherein the plurality of first sequences are the same sequences having a same phase, and wherein a phase shift amount between a second sequence and at least one second sequence adjacent to the second sequence is mapped on each of the plurality of second sequences.