Digital broadcasting system and data processing method

• US 8,542,761 B2
• Filed: 09/23/2011
• Issued: 09/24/2013
• 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: Choi, In Hwan, Suh, Jong Yeul, Lee, Chul Soo, Song, Jae Hyung, Kim, Jin Pil
• Primary Examiner(s): Tran, Khanh C
• Assistant Examiner(s): Bolourchi, Nader
• Application Number:
  US13/244,240
• Publication Number:
  US 20120079356A1
• Time in Patent Office: 732 Days
• Field of Search: 375/270, 714/784, 714/E11.03
• US Class Current: 375/265
• CPC Class Codes: H04H 20/55 for traffic information
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/07 characterised by processes or methods for the generation
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 27/02 Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04N 7/015 High-definition television systems
• CPC Class Codes: H04N 7/088 the inserted signal being digital
• 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 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]

Abstract

A digital broadcasting system and method of processing data therein are disclosed. According to one embodiment, a digital broadcasting system includes an RS (Reed-Solomon) encoder configured to encode mobile service data for FEC (Forward Error Correction) to build RS frames including the mobile service data and a signaling information table, a signaling encoder configured to encode signaling information including fast information channel (FIC) data, and transmission parameter channel (TPC) data, a group formatter configured to form data groups, wherein at least one of the data groups includes encoded mobile service data, known data sequences, the FIC data and the TPC data, and a transmission unit configured to transmit the broadcast signal including a parade of the data groups.

Claims

1. A transmitting system for transmitting a broadcast signal, the transmitting system comprising:

a Reed-Solomon (RS) encoder configured to encode mobile service data for Forward Error Correction (FEC) to build an RS frame including the mobile service data and a signaling information table;

a signaling encoder configured to encode signaling information including fast information channel (FIC) data and transmission parameter channel (TPC) data, wherein the FIC data includes binding information between a service of the mobile service data and either a primary ensemble or a secondary ensemble that carries the signaling information table;

a group formatter configured to form data groups, wherein at least one of the data groups includes encoded mobile service data, known data sequences, the FIC data and the TPC data; and

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

wherein the RS frame further includes a plurality of transport packets,

wherein at least one of the plurality of transport packets includes a header and a payload,

wherein the payload includes at least one Internet protocol (IP) datagram,

wherein the header includes a pointer field indicating a start position of a new IP datagram in the payload,

wherein the FIC data further includes an ensemble identifier to identify the primary or secondary ensemble, and

wherein the TPC data includes FIC version information for identifying an update of the FIC data.

2. The transmitting system of claim 1, wherein 7 least significant bits of the ensemble identifier correspond to a parade identifier identifying the parade that carries at least the primary ensemble or the secondary ensemble.

3. The transmitting system of claim 2, wherein the primary ensemble is identified by the ensemble identifier when a most significant bit (MSB) of the ensemble identifier is set to 0.

4. The transmitting system of claim 2, wherein the secondary ensemble is identified by the ensemble identifier when a most significant bit (MSB) of the ensemble identifier is set to 1.

5. The transmitting system of claim 1, wherein:

the signaling information table is transmitted by at least one section comprising a section header and a section body;

the section header includes a table identifier and the ensemble identifier; and

the section body includes access information of the mobile service data.

6. The transmitting system of claim 5, wherein a type of the signaling information table is differentiated by using the table identifier and the ensemble identifier.

7. The transmitting system of claim 1, wherein:

the at least one of the data groups further includes a plurality of data blocks; and

the FIC data and the TPC data are inserted into a specific data block of the plurality of data blocks.

8. The transmitting system of claim 1, wherein at least two of the known data sequences have different lengths.

9. The transmitting system of claim 1, wherein:

the FIC data further includes a plurality of FIC segments;

each of the plurality of FIC segments includes an FIC segment header and an FIC segment payload;

one of the plurality of FIC segments is transmitted in a group; and

one of the FIC segment payloads includes the ensemble identifier.

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

encoding mobile service data for Forward Error Correction (FEC) to build a Reed-Solomon (RS) frame including the mobile service data and a signaling information table;

encoding signaling information including fast information channel (FIC) data and transmission parameter channel (TPC) data, wherein the FIC data includes binding information between a service of the mobile service data and either a primary ensemble or a secondary ensemble that carries the signaling information table;

forming data groups, wherein at least one of the data groups includes encoded mobile service data, known data sequences, the FIC data and the TPC data; and

transmitting the broadcast signal including a parade of the data groups,

wherein the RS frame further includes a plurality of transport packets,

wherein at least one of the plurality of transport packets includes a header and a payload,

wherein the payload includes at least one Internet protocol (IP) datagram,

wherein the header includes a pointer field indicating a start position of a new IP datagram in the payload,

wherein the FIC data further includes an ensemble identifier to identify the ensemble, and

wherein the TPC data includes FIC version information for identifying an update of the FIC data.

11. The method of claim 10, wherein 7 least significant bits of the ensemble identifier correspond to a parade identifier identifying the parade that carries at least the primary ensemble or the secondary ensemble.

12. The method of claim 11, wherein the primary ensemble is identified by the ensemble identifier when a most significant bit (MSB) of the ensemble identifier is set to 0.

13. The method of claim 11, wherein the secondary ensemble is identified by the ensemble identifier when a most significant bit (MSB) of the ensemble identifier is set to 1.

14. The method of claim 10, wherein:

the signaling information table is transmitted by at least one section comprising a section header and a section body;

the section header includes a table identifier and the ensemble identifier; and

the section body includes access information of the mobile service data.

15. The method of claim 14, wherein a type of the signaling information table is differentiated by using the table identifier and the ensemble identifier.

16. The method of claim 10, wherein:

the at least one of the data groups further includes a plurality of data blocks; and

the FIC data and the TPC data are inserted into a specific data block of the plurality of data blocks.

17. The method of claim 10, wherein at least two of the known data sequences have different lengths.

18. The method of claim 10, wherein:

the FIC data further includes a plurality of FIC segments;

each of the plurality of FIC segments includes an FIC segment header and an FIC segment payload;

one of the plurality of FIC segments is transmitted in a group; and

one of the FIC segment payloads includes the ensemble identifier.