| 摘要 |
<p>The invention relates to a method for transmitting a broadcasting signal, the method comprising: encoding physical layer pipe, PLP, data for conveying a service stream for forward encoding correction; mapping the encoded PLP data to symbols and time interleaving the mapped symbols; building a frame using the time-interleaved symbols ; modulating the frame by an orthogonal frequency divisional multiplexing scheme ;and transmitting a signal including the modulated frame and a first pilot, P1, symbol inserted to at a beginning part of the modulated frame, the P1 symbol having a structure including a first, second and third portions, wherein the second portion is an effective portion of the P1 symbol, the first portion carries frequency-shifted version of a first part of the second portion and the third portion carries frequency-shifted version of a second part of the second portion. There is further disclosed an interrelated apparatus.</p> |
