Patent ID: 9736508
Date: 2017-08-15
CPC Classifications: H04L,H04N

Claim:
1. A method of processing broadcast data in a broadcast transmitter, the method comprising: encoding service data to add parity data; first interleaving the encoded service data; second interleaving the first interleaved service data; encoding signaling data for signaling the encoded service data; inserting null-data to the encoded signaling data; permutating a part of the signaling data in which the null-data is inserted, wherein positions of data in a fore part of the signaling data are maintained and positions of data in a rear part of the signaling data are changed in the permutating step; building a frame including a first region and a second region in symbol units, wherein the first region of the frame is beginning with a synchronization symbol which is followed by first multiple symbols being generated from different PN sequences, wherein the first multiple symbols are followed by second multiple symbols including multiplexing information for the service data, and wherein the second region of the frame includes the service data; and transmitting a broadcast signal including data of the frame.