Broadcasting receiver and broadcast signal processing method

• US 9,106,349 B2
• Filed: 10/31/2011
• Issued: 08/11/2015
• Est. Priority Date: 07/02/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Oh, Hyen O, Choi, In Hwan, Kwak, Kook Yeon, Kim, Byoung Gill, Song, Won Gyu, Kim, Jin Woo, Lee, Hyoung Gon
• Primary Examiner(s): Decady, Albert
• Assistant Examiner(s): Ahmed, Enam
• Application Number:
  US13/286,123
• Publication Number:
  US 20120047416A1
• Time in Patent Office: 1,380 Days
• Field of Search: 714/784
• US Class Current: 1/1
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/15 Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes H03M13/17 takes precedence
• CPC Class Codes: H03M 13/1515 Reed-Solomon codes
• CPC Class Codes: H03M 13/2707 Simple row-column interleaver, i.e. pure block interleaving
• CPC Class Codes: H03M 13/271 Row-column interleaver with permutations, e.g. block interleaving with inter-row, inter-column, intra-row or intra-column permutations
• CPC Class Codes: H03M 13/2792 Interleaver wherein interleaving is performed jointly with another technique such as puncturing, multiplexing or routing
• CPC Class Codes: H03M 13/293 with erasure setting
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H03M 13/2966 Turbo codes concatenated with another code, e.g. an outer block code
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H03M 13/4146 soft-output Viterbi decoding according to Battail and Hagenauer in which the soft-output is determined using path metric differences along the maximum-likelihood path, i.e. "SOVA" decoding
• CPC Class Codes: H03M 13/6356 by repetition or insertion of dummy data, i.e. rate reduction
• CPC Class Codes: H03M 13/6561 Parallelized implementations
• CPC Class Codes: H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving
• CPC Class Codes: H04H 60/11 Arrangements for counter-measures when a portion of broadcast information is unavailable
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06

Abstract

A digital broadcasting system which is robust against an error when mobile service data is transmitted and a method of processing data are disclosed. The mobile service data is subjected to an additional coding process and the coded mobile service data is transmitted. Accordingly, it is possible to cope with a serious channel variation while applying robustness to the mobile service data.

Claims

1. An apparatus for transmitting a broadcast signal, the apparatus comprising:

an encoder configured to build a Reed-Solomon (RS) frame by encoding mobile data and adding RS parity and cyclic redundancy check (CRC) checksum data,

wherein a size of the RS frame is (187+P)×

(N+2) bytes;

a divider configured to divide the RS frame into a plurality of portions;

a serial concatenated convolutional coding (SCCC) encoder configured to SCCC encode data in one portion of the plurality of portions;

a signaling encoder configured to encode signaling information by parallel concatenated convolutional code (PCCC) encoding the signaling information;

a group formatter configured to form data groups; and

a transmission unit configured to transmit the broadcast signal within a transmission frame including a parade of data groups,

wherein a data group includes the SCCC encode data, the PCCC encoded signaling information, and known data sequences,

wherein at least one of the data groups includes data blocks and the known data sequences are inserted into specific data blocks,

wherein the signaling information includes a parade identifier identifying a parade to which current data group belongs, and

wherein the data groups include audio data encoded on the basis of Huffman table information.

2. The apparatus of claim 1, wherein a first known data sequence is inserted into a third data block, a second known data sequence and a third known data sequence are inserted into a fourth data block, a fourth known data sequence is inserted into a fifth data block, a fifth known data sequence is inserted into a sixth data block, and a sixth known data sequence is inserted into a seventh data block.

3. The apparatus of claim 1, wherein at least two of the known data sequences have a same pattern.

4. A method for transmitting a broadcast signal, the method comprising:

building a Reed-Solomon (RS) frame by encoding mobile data and adding RS parity and cyclic redundancy check (CRC) checksum data, wherein a size of the RS frame is (187+P)×

(N+2) bytes;

dividing the RS frame into a plurality of portions;

serial concatenated convolutional coding (SCCC) encoding data in one portion of the plurality of portions;

parallel concatenated convolutional code (PCCC) encoding signaling information;

forming data groups; and

transmitting the broadcast signal within a transmission frame including a parade of data groups;

wherein a data group includes the SCCC encode data, the PCCC encoded signaling information, and known data sequences,

wherein at least one of the data groups includes data blocks and the known data sequences are inserted into specific data blocks,

wherein the signaling information includes a parade identifier identifying a parade to which current data group belongs, and

wherein the data groups include audio data encoded on the basis of Huffman table information.

5. The method of claim 4, wherein a first known data sequence is inserted into a third data block, a second known data sequence and a third known data sequence are inserted into a fourth data block, a fourth known data sequence is inserted into a fifth data block, a fifth known data sequence is inserted into a sixth data block and a sixth known data sequence is inserted into a seventh data block.

6. The apparatus of claim 4, wherein at least two of the known data sequences have a same pattern.