Digital broadcasting system and method of processing data thereof

• US 8,181,207 B2
• Filed: 01/28/2010
• Issued: 05/15/2012
• Est. Priority Date: 07/25/2007
• Status: Expired due to Fees

• 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): Bui, Kieu Oanh T
• Assistant Examiner(s): Alcon, Fernando
• Application Number:
  US12/695,998
• Publication Number:
  US 20100131820A1
• Time in Patent Office: 838 Days
• Field of Search: None
• US Class Current: 725/62
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/73 using meta-information

Abstract

A digital broadcasting system and data processing method are disclosed, which are highly resistant to channel changes and noise. The present invention includes receiving a broadcast signal having mobile service data and main service data multiplexed with each other from at least one parade, demodulating the broadcast signal, acquiring program table information describing at least one service included in at least one ensemble from the demodulated broadcast signal and decoding the mobile service data associated with a first service using a program table information transport unit in the acquired program table information.

Claims

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

performing Reed Solomon (RS) encoding and Cyclic Redundancy Check (CRC) encoding on IP-based mobile service data and at least one section divided from a signaling information table, the at least one section comprising a section header including an ensemble identifier to identify an ensemble and a section body including access information of the IP-based mobile service data, thereby generating an RS frame belonging to the ensemble;

encoding fast information channel (FIC) data and transmission parameter channel (TPC) data with a first encoding code and encoding the RS frame with a second encoding code, wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode; and

modulating and transmitting a broadcast signal including the encoded TPC and FIC data, and the encoded RS frame.

2. The method of claim 1, wherein the first encoding code is a Parallel Concatenated Convolutional Code (PCCC) and the second encoding code is a Serial Concatenated Convolutional Code (SCCC).

3. The method of claim 1, further comprising:

mapping the RS frame to a plurality of groups, wherein each group further includes the TPC data, the FIC data and a plurality of known data sequences and wherein at least two of the plurality of known data sequences differ from each other in length.

4. The method of claim 3, wherein at least one of the plurality of known data sequences is repeated within a same pattern in each group.

5. The method of claim 3, wherein the TPC and FIC data are inserted between a first known data sequence and a second known data sequence of the plurality of known data sequences.

6. The method of claim 3, wherein each group comprises regions A, B, C, and D, and wherein, if the RS frame mode information indicates the single frame mode, the RS frame is mapped into regions A, B, C, and D of each group.

7. The method of claim 6, wherein, if the RS frame mode information indicates the dual frame mode, the RS frame is mapped into regions A and B or regions C and D of each group.

8. A transmitting system comprising:

a Reed Solomon (RS) frame encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on IP-based mobile service data and at least one section divided from a signaling information table, the at least one section comprising a section header including an ensemble identifier to identify an ensemble and a section body including access information of the IP-based mobile service data, thereby generating an RS frame belonging to the ensemble;

a signaling encoder for encoding fast information channel (FIC) data and transmission parameter channel (TPC) data with a first encoding code, wherein the FIC data includes information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and RS frame mode information for indicating a single frame mode or a dual frame mode;

a block processor for encoding the RS frame with a second encoding code; and

a transmitting unit for modulating and transmitting a broadcast signal including the encoded TPC and FIC data, and the encoded RS frame.

9. The transmitting system of claim 8, wherein the first encoding code is a Parallel Concatenated Convolutional Code (PCCC) and the second encoding code is a Serial Concatenated Convolutional Code (SCCC).

10. The transmitting system of claim 8, further comprising:

a group formatter for mapping the RS frame into a plurality of groups, wherein each group further includes the TPC data, the FIC data and a plurality of known data sequences and wherein at least two of the plurality of known data sequences differ from each other in length.

11. The transmitting system of claim 10, wherein at least one of the plurality of known data sequences is repeated within a same pattern in each group.

12. The transmitting system of claim 10, wherein the TPC and FIC data are inserted between a first known data sequence and a second known data sequence of the plurality of known data sequences.

13. The transmitting system of claim 10, wherein each group comprises regions A, B, C, and D, wherein the group formatter maps the RS frame into regions A, B, C, and D of each group, if the RS frame mode information indicates the single frame mode.

14. The transmitting system of claim 13, wherein the group formatter maps the RS frame into regions A and B or regions C and D of each group, if the RS frame mode information indicates the dual frame mode.