Patent ID: 9608770
Date: 2017-03-28
CPC Classifications: H04L

Claim:
1. An apparatus for transmitting a broadcast signal, the apparatus comprising: an input formatter module configured to de-multiplex an input stream into at least one data pipe (DP); a Bit Interleaved Coding and Modulation (BICM) module configured to perform error correction on data of the at least one DP; a frame building module configured to generate a signal frame including the data of the at least one DP; and an Orthogonal Frequency Division Multiplexing (OFDM)) generation module configured to generate a transmission signal by inserting a preamble into the signal frame and performing OFDM modulation, wherein the input formatter module comprises: a header compression module configured to compress Internet Protocol (IP) headers of IP packets included in an IP stream into a full header or a partial header when the input stream is the IP stream; a baseband (BB) frame slicer module configured to allocate data of the IP packets to a BB frame; and a BB frame header insertion module configured to insert a BB frame header into the BB frame, the BB frame header including IP header compression information, wherein the IP header compression information includes IP packet type information and IP packet position information for the IP packets, wherein the IP packet position information indicates a position of each of the IP packets within the BB frame and the IP packet type information indicates whether each of the IP packets includes the full header or the partial header.