摘要 |
The invention relates to a method of transmitting a broadcasting signal, the method comprising:
encoding Physical Layer Pipe data by a low-density parity-check code, LDPC, encoding scheme;
building a signal frame including a preamble and a payload, the preamble including a P1 symbol and P2 symbols, wherein the encoded PLP data is included in the payload and the P2 symbols; and
transmitting the signal frame via at least one radio frequency ,RF, channel,
wherein the P1 symbol includes an effective portion and a cyclic prefix obtained by frequency-shifting a first portion of the effective portion and a cyclic suffix obtained by frequency-shifting a second portion of the effective portion.
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