Digital broadcasting system and data processing method in the digital broadcasting system

• US 8,472,476 B2
• Filed: 09/23/2011
• Issued: 06/25/2013
• Est. Priority Date: 09/21/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Chul Soo, Choi, In Hwan, Song, Jae Hyung, Choi, Seung Jong
• Primary Examiner(s): Mui, Gary
• Application Number:
  US13/244,266
• Publication Number:
  US 20120014300A1
• Time in Patent Office: 641 Days
• Field of Search: 370/349, 370/329, 370/208, 370/312, 370/398, 370/486, 370/535, 370470-474, 455/3.02, 455/3.03, 455/3.06, 455/150.1, 455/414.3, 725/120, 725/123, 725/131, 725/139, 725/143, 375/240, 375/240.01, 375/270, 714/755, 714/756, 714/784, 714/792, 714/758
• US Class Current: 370/474
• 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 13/27 using interleaving techniques
• CPC Class Codes: H03M 13/2906 using block codes H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0058 Block-coded modulation
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• 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: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A digital broadcasting system and a data processing method are disclosed. In an aspect of the present invention, the present invention provides a data processing method including receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the received broadcast signal, outputting demodulation time information of a specific position of a broadcast signal frame, and acquiring reference time information contained in the mobile service data frame, setting the reference time information to a system time clock at a specific time based on the demodulation time information and decoding the mobile service data according to the system time clock.

Claims

1. A method of transmitting a broadcast signal in a transmitter, the method comprising:

multiplexing mobile data and main data; and

transmitting a transmission frame including a parade of data groups having the mobile data, known data sequences and signaling information,

wherein at least one of the parade of data groups includes a plurality of regions having 10 data blocks,

wherein a third data block of the 10 data blocks includes a first known data sequence of the known data sequences,

wherein a fourth data block of the 10 data blocks includes a second known data sequence and a third known data sequence of the known data sequences,

wherein a fifth data block of the 10 data blocks includes a fourth known data sequence of the known data sequences,

wherein a sixth data block of the 10 data blocks includes a fifth known data sequence of the known data sequences,

wherein a seventh data block of the 10 data blocks includes a sixth known data sequence of the known data sequences,

wherein the signaling information includes fast information channel (FIC) data and transmission parameter channel (TPC) data,

wherein the FIC data includes binding information between a service of the mobile data and an ensemble,

wherein the TPC data includes an parade identifier for indicating the parade and Reed-Solomon (RS) frame mode information,

wherein the signaling information is inserted into the fourth data block of the 10 data blocks, and

wherein the mobile data belonging to the ensemble is Reed Solomon-cyclic redundancy check (RS-CRC) encoded through a 2-dimensional RS frame according to the RS frame mode information.

2. The method of claim 1, wherein the ensemble includes the service of the mobile data and a signaling table describing the service.

3. The method of claim 1, wherein:

the FIC data further includes an ensemble identifier; and

a value of the ensemble identifier is derived from the parade identifier.

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

a multiplexer configured to multiplex mobile data and main data; and

a transmission unit configured to transmit a transmission frame including a parade of data groups having the mobile data, known data sequences and signaling information,

wherein at least one of the parade of data groups includes a plurality of regions having 10 data blocks,

wherein a third data block of the 10 data blocks includes a first known data sequence of the known data sequences,

wherein a fourth data block of the 10 data blocks includes a second known data sequence and a third known data sequence of the known data sequences,

wherein a fifth data block of the 10 data blocks includes a fourth known data sequence of the known data sequences,

wherein a sixth data block of the 10 data blocks includes a fifth known data sequence of the known data sequences,

wherein a seventh data block of the 10 data blocks includes a sixth known data sequence of the known data sequences,

wherein the signaling information includes fast information channel (FIC) data and transmission parameter channel (TPC) data,

wherein the FIC data includes binding information between a service of the mobile data and an ensemble,

wherein the TPC data includes an ensemble identifier for indicating the ensemble and Reed-Solomon (RS) frame mode information, and

wherein the mobile data belonging to the ensemble is Reed Solomon-cyclic redundancy check (RS-CRC) encoded through a 2-dimensional RS frame according to the RS frame mode information.

5. The apparatus of claim 4, wherein the ensemble includes the service of the mobile data and a signaling table describing the service.

6. The apparatus of claim 4, wherein the FIC data further includes the ensemble identifier.