Digital broadcasting receiver and method for controlling the same

• US 8,589,772 B2
• Filed: 02/02/2010
• Issued: 11/19/2013
• 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: Song, Jae Hyung, Choi, In Hwan, Suh, Jong Yeul, Kim, Jin Pil, Lee, Chul Soo
• Primary Examiner(s): LAMARRE, GUY J
• Application Number:
  US12/699,022
• Publication Number:
  US 20100138727A1
• Time in Patent Office: 1,386 Days
• Field of Search: 714/784, 714/758, 714/776, 370/312, 725/62
• US Class Current: 714/784
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/23 using cryptography, e.g. encryption, authentication, key distribution
• CPC Class Codes: H04L 65/70 Media network packetisation
• 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: H04L 69/22 Parsing or analysis of headers

Abstract

A reception system and a method for processing data in the reception system are disclosed. The reception system includes a baseband processor receiving a broadcasting signal including mobile service data and main service data, the mobile service data including first service data and second service data having a format different from that of the first service data, the second service data configuring a Reed Solomon (RS) frame, and the RS frame including a table which describes the second service data and signaling information of the second service data, a table handler parsing the table from the RS frame and extracting the signaling information of the second service data, and service handlers parsing the second service data from the RS frame on the basis of the extracted signaling information of the second service data. Accordingly, it is possible to transmit/receive service data having a format different from that of the existing method in a single MH system.

Claims

1. 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 including access information of the mobile service data, thereby forming an RS frame;

dividing the RS frame into a plurality of groups, wherein each group includes a portion of data included in the RS frame, a plurality of known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, 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

transmitting a broadcast signal including the plurality of groups,

wherein the RS frame comprises a plurality of packets, each of the packets having an M-byte header, k stuffing bytes, and an (N-M-k)-byte payload, the payload including an IP datagram of the mobile service data, the header including a type field indicating a type of all packets in the payload, wherein N and M are integers, k is equal to or greater than 0, and a value of N-M-k is greater than 0.

2. The method of claim 1, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence among the plurality of known data sequences.

3. The method of claim 1, wherein the header further includes at least one of information indicating whether or not an error is included in the packet and information indicating whether or not the stuffing bytes are included in the packet.

4. The method of claim 1, wherein at least two of the plurality of known data sequences have different lengths.

5. The method of claim 1, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a well-known IP address and a well-known UDP port number.

6. 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 including access information of the mobile service data, thereby forming an RS frame;

a group formatting means for dividing the RS frame into a plurality of groups, wherein each of the groups includes a portion of data included in the RS frame, a plurality of known data sequences, fast information channel (FIC) data, and transmission parameter channel (TPC) data, 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

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

wherein the RS frame comprises a plurality of packets, each of the packets having an M-byte header, k stuffing bytes, and an (N-M-k)-byte payload, the payload including an IP datagram of the mobile service data, the header including a type field indicating a type of all packets in the payload, wherein N and M are integers, k is equal to or greater than 0, and a value of N-M-k is greater than 0.

7. The broadcast transmitter of claim 6, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence among the plurality of known data sequences.

8. The broadcast transmitter of claim 6, wherein the header further includes at least one of information indicating whether or not an error is included in the packet and information indicating whether or not the stuffing bytes are included in the packet.

9. The broadcast transmitter of claim 6, wherein at least two of the plurality of known data sequences have different lengths.

10. The broadcast transmitter of claim 6, wherein the signaling information table is encapsulated with a user datagram protocol and IP (UDP/IP) header including a well-known IP address and a well-known UDP port number.

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

receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information of the mobile service data, a plurality of 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 encapsulated into at least one of RS frames, 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;

demodulating the received broadcast signal;

compensating channel distortion generated in the demodulated broadcast signal based upon at least one of the plurality of known data sequences;

extracting the signaling information table from the channel distortion compensated broadcast signal; and

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

wherein the at least one of the RS frames comprises a plurality of packets, each packet having an M-byte header, k stuffing bytes, and an (N-M-k)-byte payload, the payload including an IP datagram of the mobile service data, the header including a type field indicating a type of all packets in the payload, wherein N and M are integers, k is equal to or greater than 0, and a value of N-M-k is greater than 0.

12. The method of claim 11, wherein the at least one of the RS frames is divided into a plurality of groups, each of the groups including a portion of data included in the RS frame and the plurality of known data sequences.

13. The method of claim 11, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence among the plurality of known data sequences.

14. The method of claim 11, wherein the header further includes at least one of information indicating whether or not an error is included in the packet and information indicating whether or not the stuffing bytes are included in the packet.

15. The method of claim 11, further comprising:

determining a type of the mobile service data included in the payload of the packet based upon the type field included in the header of the packet.

16. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information of the mobile service data, a plurality of 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 encapsulated into at least one of RS frames, 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;

a demodulator for demodulating the received broadcast signal;

an equalizer for compensating channel distortion generated in the demodulated broadcast signal based upon at least one of the plurality of known data sequences;

a first handler for extracting the signaling information table from the channel distortion compensated broadcast signal; and

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

wherein the RS frame comprises a plurality of packets, each packet having an M-byte header, k stuffing bytes, and an (N-M-k)-byte payload, the payload including an IP datagram of the mobile service data, the header including a type field indicating a type of all packets in the payload, wherein N and M are integers, k is equal to or greater than 0, and a value of N-M-k is greater than 0.

17. The broadcast receiver of claim 16, wherein the at least one of the RS frames is divided into a plurality of groups, each of the groups including a portion of data included in the RS frame and the plurality of known data sequences.

18. The broadcast receiver of claim 16, wherein the FIC data and the TPC data are positioned between a first known data sequence and a second known data sequence among the plurality of known data sequences.

19. The broadcast receiver of claim 16, wherein the header further includes at least one of information indicating whether or not an error is included in the packet and information indicating whether or not the stuffing bytes are included in the packet.

20. The broadcast receiver of claim 16, wherein the second handler determines a type of the mobile service data included in the payload of the packet based upon the type field included in the header of the packet.

21. A broadcast receiver comprising:

a tuner for receiving a broadcast signal, the broadcast signal comprising mobile service data, a signaling information table including access information of the mobile service data, a plurality of 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 encapsulated into at least one of RS frames, 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;

a demodulator for demodulating the received broadcast signal;

an equalizer for compensating channel distortion generated in the demodulated broadcast signal based upon at least one of the plurality of known data sequences; and

a handler for extracting the signaling information table from the channel distortion compensated broadcast signal and obtaining an IP datagram of the mobile service data using the extracted signaling information table,

wherein the RS frame comprises a plurality of packets, each of the packets having an M-byte header, k stuffing bytes, and an (N-M-k)-byte payload, the payload including an IP datagram of the mobile service data, the header including a type field indicating a type of all packets in the payload, wherein N and M are integers, k is equal to or greater than 0, and a value of N-M-k is greater than 0.