Patent ID: 11863203
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An apparatus for receiving a broadcast signal, the apparatus comprising:
a receiver for receiving the broadcast signal;
a frequency de-interleaver for frequency de-interleaving the broadcast signal including frequency interleaved data,
wherein the frequency interleaved data is data that is interleaved by using an interleaving sequence,
wherein the interleaving sequence is based on a main interleaving sequence, a symbol offset and an address checker,
wherein the main interleaving sequence is based on a FFT(Fast Fourier Transform) size,
wherein the symbol offset has a value for two consecutive OFDM(Orthogonal Frequency Division Multiplexing) symbols,
wherein the address checker checks addresses of a first sequence which is based on the main interleaving sequence and the symbol offset and outputs the first sequence as the interleaving sequence when the addresses of the first sequence are within a range of an OFDM symbol.