Digital broadcasting system and data processing method

• US 9,294,884 B2
• Filed: 01/17/2014
• Issued: 03/22/2016
• Est. Priority Date: 07/25/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Song, Jae Hyung, Choi, In Hwan, Hong, Ho Taek, Kwak, Kook Yeon, Kim, Byoung Gill, Suh, Jong Yeul, Kim, Jin Pil, Song, Won Gyu, Lee, Chul Soo, Kim, Jin Woo, Lee, Hyoung Gon, Lee, Joon Hui
• Primary Examiner(s): BLANTON, JOHN D
• Application Number:
  US14/158,286
• Publication Number:
  US 20140192699A1
• Time in Patent Office: 795 Days
• 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 13/23 using convolutional codes, e.g. unit memory codes
• CPC Class Codes: H03M 13/2915 with an error detection code in one dimension
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H03M 13/2945 using at least three error correction codes H03M13/2957 takes precedence
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04N 21/23611 Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate synchronisation arrangements in time-division multiplex systems using bit stuffing for systems with different or fluctuating information rates H04J3/073
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/4381 Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Abstract

A method of processing broadcast data in a broadcast transmitting system includes Reed-Solomon (RS) encoding and Cyclic Redundancy Check encoding an RS frame payload including mobile service data to build an RS frame, wherein the RS frame payload comprises a plurality of mobile and handheld transport packets; first encoding data of the RS frame with a first encoding code; second encoding signaling data with a second encoding code, wherein the signaling data include fast information channel (FIC) data and transmission parameter channel (TPC) data, the FIC data including information for rapid mobile service acquisition and the TPC data including a parade identifier for identifying a parade to which a current data group belongs; mapping the first encoded data into data groups and adding known data sequences and the second encoded signaling data to each of the data groups; and transmitting a transmission frame including data of the data groups.

Claims

1. A method of processing broadcast data in a broadcast transmitting system, the method comprising:

encoding broadcast service data for a broadcast service, the broadcast service data being included in at least one data unit, wherein the at least one data unit includes an M-byte header, k bytes of stuffing data and an (N−

M−

k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the at least one data unit, wherein N and M are integers, and k is equal to or greater than 0, and wherein, when a length of the stuffing data is equal to or more than 3-byte, the length of the stuffing data is indicated by using a length indication field in the at least one data unit;

interleaving the encoded broadcast service data;

encoding signaling data for signaling the broadcast service data; and

modulating the interleaved broadcast service data and the encoded signaling data.

2. The method of claim 1, wherein the modulated data are transmitted via a path.

3. The method of claim 2, wherein the signaling data include identification information for identifying the path.

4. The method of claim 1, wherein the signaling data include information for rapid acquisition of the broadcast service.

5. The method of claim 1, wherein, when the length of the stuffing data is equal to or less than 2-byte, the length of the stuffing data is identified based on at least the stuffing indication field or the stuffing data.

6. A broadcast transmitting system for processing broadcast data, the broadcast transmitting system comprising:

an encoder for encoding broadcast service data for a broadcast service, the broadcast service data being included in at least one data unit, wherein the at least one data unit includes an M-byte header, k bytes of stuffing data and an (N−

M−

k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the at least one data unit, wherein N and M are integers, and k is equal to or greater than 0, and wherein, when a length of the stuffing data is equal to or more than 3-byte, the length of the stuffing data is indicated by using a length indication field in the least one data unit;

an interleaver for interleaving the encoded broadcast service data;

a signaling encoder for encoding signaling data for signaling the broadcast service data; and

a modulator for modulating the interleaved broadcast service data and the encoded signaling data.

7. The broadcast transmitting system of claim 6, wherein the modulated data are transmitted via a path.

8. The broadcast transmitting system of claim 7, wherein the signaling data include identification information for identifying the path.

9. The broadcast transmitting system of claim 6, wherein the signaling data include information for rapid acquisition of the broadcast service.

10. The broadcast transmitting system of claim 6, wherein, when the length of the stuffing data is equal to or less than 2-byte, the length of the stuffing data is identified based on at least the stuffing indication field or the stuffing data.