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

• US 7,733,820 B2
• Filed: 09/22/2008
• Issued: 06/08/2010
• 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, Lee, Chul Soo, Song, Jae Hyung, Kwak, Min Sung
• Primary Examiner(s): Nguyen; Steven H
• Assistant Examiner(s): Skripnikov; Alex
• Application Number:
  US12/235,568
• Publication Number:
  US 20090080435A1
• Time in Patent Office: 624 Days
• Field of Search: None
• US Class Current: 370/312
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 20/59 for emergency or urgency

Abstract

A digital broadcasting system and a data processing method are disclosed. A receiving system of the digital broadcasting system comprises a baseband processor, a management processor and a presentation processor. The baseband processor receives a broadcast signal including mobile service data and main service data, wherein the mobile service data configure a Reed-Solomon (RS) frame. The RS frame includes at least one of the mobile service data and notification messages. The notification messages are packetized in accordance with any one of a first transport protocol and a second transport protocol. The management processor decodes the notification messages from the RS frame in accordance with any one of the first transport protocol and the second transport protocol. The presentation processor directly outputs the decoded notification messages to an output unit in accordance with a channel which transmits the decoded notification messages, or outputs the decoded notification messages to the output unit only if a user selects the notification messages.

Claims

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

receiving a broadcast signal comprising mobile service data, a signaling information table, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data,

wherein the mobile service data and the signaling information table are packaged into at least one of a plurality of Reed Solomon (RS) frames belonging to at least a primary ensemble or a secondary ensemble, wherein the FIC data comprises information for rapid mobile service acquisition, and wherein the TPC data comprises FIC version information for indicating an update of the FIC data and a parade identifier to identify a parade which carries at least one of the primary ensemble and the secondary ensemble;

decoding the at least one of the plurality of RS frames from the received broadcast signal;

obtaining the signaling information table from the at least one of the plurality of RS frames; and

obtaining an IP datagram of the mobile service data using the signaling information table,

wherein the signaling information table is received by at least one section, each section comprising a section header and a section body, wherein the section header comprises an ensemble identifier to identify one of the primary ensemble and the secondary ensemble and the section body includes access information of the mobile service data, and wherein the ensemble identifier comprises the parade identifier.

2. The method of claim 1, wherein the ensemble identifier is for the primary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

0’

.

3. The method of claim 1, wherein the ensemble identifier is for the secondary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

1’

.

4. The method of claim 1, wherein a least significant 7 bits of the ensemble identifier correspond to the parade identifier.

5. The method of claim 1, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

6. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data,

wherein the mobile service data and the signaling information table are packaged into at least one of a plurality of Reed Solomon (RS) frames belonging to at least a primary ensemble or a secondary ensemble, wherein the FIC data comprises information for rapid mobile service acquisition, and wherein the TPC data comprises FIC version information for indicating an update of the FIC data and a parade identifier to identify a parade which carries at least one of the primary ensemble and the secondary ensemble;

a decoder for decoding the at least one of the plurality of RS frames from the received broadcast signal;

a first handler for obtaining the signaling information table from the at least one of the plurality of RS frames; and

a second handler for obtaining an IP datagram of the mobile service data using the signaling information table,

wherein the signaling information table is received by at least one section, each section comprising a section header and a section body, wherein the section header comprises an ensemble identifier to identify one of the primary ensemble and the secondary ensemble and the section body comprises access information of the mobile service data, and wherein the ensemble identifier comprises the parade identifier.

7. The broadcast receiver of claim 6, wherein the ensemble identifier is for the primary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

0’

.

8. The broadcast receiver of claim 6, wherein the ensemble identifier is for the secondary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

1’

.

9. The broadcast receiver of claim 6, wherein a least significant 7 bits of the ensemble identifier correspond to the parade identifier.

10. The broadcast receiver of claim 6, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

11. A method of processing broadcast data in a broadcast transmitter, the method comprising:

performing, by a Reed Solomon (RS) encoder, RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data and a signaling information table comprising access information of the mobile service data, thereby packaging the mobile service data and the signaling information table into at least one of a plurality of RS frames belonging to at least a primary ensemble or a secondary ensemble;

mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each of the plurality of groups comprises a portion of data included in a corresponding RS frame, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, wherein the FIC data comprises information for rapid mobile service acquisition, and wherein the TPC data includes FIC version information for indicating an update of the FIC data and a parade identifier to identify a parade which carries at least one of the primary ensemble and the secondary ensemble; and

transmitting a broadcast signal including the plurality of groups,

wherein the signaling information table is carried by at least one section, each section comprising a section header and a section body, wherein the section header comprises an ensemble identifier to identify one of the primary ensemble and the secondary ensemble and the section body comprises access information of the mobile service data, and wherein the ensemble identifier comprises the parade identifier.

12. The method of claim 11, wherein the ensemble identifier is for the primary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

0’

.

13. The method of claim 11, wherein the ensemble identifier is for the secondary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

1’

.

14. The method of claim 11, wherein a least significant 7 bits of the ensemble identifier correspond to the parade identifier.

15. The method of claim 11, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.

16. A broadcast transmitter comprising:

a Reed Solomon (RS) encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data and a signaling information table that includes access information of the mobile service data, thereby packaging the mobile service data and the signaling information table into at least one of a plurality of RS frames belonging to at least a primary ensemble or a secondary ensemble;

a group formatting means for mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each of the plurality of groups comprises a portion of data included in a corresponding RS frame, regularly spaced known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data,

wherein the FIC data comprises information for rapid mobile service acquisition, and wherein the TPC data comprises FIC version information for indicating an update of the FIC data and a parade identifier to identify a parade which carries at least one of the primary ensemble and the secondary ensemble; and

a transmitting means for transmitting a broadcast signal comprising the plurality of groups,

wherein the signaling information table is carried by at least one section, each section comprising a section header and a section body, wherein the section header comprises an ensemble identifier to identify one of the primary ensemble and the secondary ensemble and the section body comprises access information of the mobile service data, and wherein the ensemble identifier includes the parade identifier.

17. The broadcast transmitter of claim 16, wherein the ensemble identifier is for the primary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

0’

.

18. The broadcast transmitter of claim 16, wherein the ensemble identifier is for the secondary ensemble carried through the parade when a most significant bit (MSB) of the ensemble identifier is set to ‘

1’

.

19. The broadcast transmitter of claim 16, wherein a least significant 7 bits of the ensemble identifier correspond to the parade identifier.

20. The broadcast transmitter of claim 16, wherein at least two of the known data sequences are spaced 16 segments apart and have different lengths.