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

• US 7,912,006 B2
• Filed: 08/25/2008
• Issued: 03/22/2011
• Est. Priority Date: 08/24/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jeong Woo, Lee, Sang Hyup, Choi, In Hwan, Lee, Chul Soo, Song, Jae Hyung
• Primary Examiner(s): Appiah; Charles N
• Assistant Examiner(s): AJIBADE AKONAI, OLUMIDE
• Application Number:
  US12/198,078
• Publication Number:
  US 20090052579A1
• Time in Patent Office: 939 Days
• Field of Search: 455/3.02, 455/3.03, 455/3.06, 455/150.1, 455/414.3, 455/414.1, 370/208, 370/312, 370/328, 370/329, 370/398, 370/486, 370/535, 370/330, 370/349, 370/432, 725/62, 725/63, 725/81, 725/85, 725/120, 725/123, 725/131, 725/139, 725/143, 725/100, 725/118, 725/142, 375/240, 375/240.01, 375/270, 714/755, 714/756, 714/758, 714/784, 714/792
• US Class Current: 370/329
• CPC Class Codes: H04H 20/26 Arrangements for switching distribution systems
• CPC Class Codes: H04H 40/27 specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• 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

Abstract

A digital broadcast receiving system and a method for controlling the same are disclosed. The method a method for controlling a digital broadcast receiving system includes the steps of receiving a broadcast signal having mobile service data and main service data multiplexed therein, extracting transmission parameter channel (TPC) signaling information and fast information channel (FIC) signaling information from a data group within the received mobile service data, acquiring a program table, by using the IP signaling channel within an ensemble included in the received broadcast signal, and controlling the system to create a list of channels mapped with all ensembles transmitted through at least one physical frequency, by using the acquired program table.

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 the multiplexed mobile and main data,

wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data, wherein each data group includes the mobile data and signaling information,

wherein the signaling information includes fast information channel (FIC) data including binding information between a service of the mobile data and an ensemble and transmission parameter channel (TPC) data indicating a version of the FIC data,

wherein the FIC data is divided into a plurality of FIC segment payloads, and each FIC segment including an FIC segment header and one of the plurality of FIC segment payloads is transmitted in each of the data groups,

wherein at least one Reed-Solomon (RS) frame belonging to the ensemble is formed by performing RS-CRC (Cyclic Redundancy Check) encoding on a payload of the RS frame,

wherein the payload of the RS frame comprises a plurality of transport packets which include the mobile data for the service and a signaling table describing the service,

wherein the signaling table includes a service labeling table having an identifier of the service and a short name of the service, and

wherein the at least one RS frame is divided into a plurality of data portions to which the data groups are mapped.

2. The method of claim 1, wherein the signaling table is identified from a different signaling table by using a table_id field and a table_id_extension field in a table section header of the signaling table.

3. The method of claim 1, wherein at least one of the plurality of transport packets includes an internet protocol (IP) datagram.

4. The method of claim 3, wherein the IP datagram includes the signaling table.

5. The method of claim 4, wherein the IP datagram including the signaling table has a well-known target IP address and a well-known target UDP port number.

6. A method of receiving a broadcast signal in a receiver, the method comprising:

receiving a broadcast signal including a transmission frame, wherein a parade of data groups in the broadcast signal is received during slots within the transmission frame, the slots being basic time periods for multiplexing of mobile data and main data, wherein each data group includes the mobile data and signaling information;

demodulating the broadcast signal and obtaining, from the signaling information, fast information channel (FIC) data including binding information between a service of the mobile data and an ensemble and transmission parameter channel (TPC) data indicating a version of the FIC data,

wherein the FIC data is divided into a plurality of FIC segment payloads, and each FIC segment including an FIC segment header and one of the plurality of FIC segment payloads is received in each of the data groups,

wherein at least one Reed-Solomon (RS) frame belonging to the ensemble is formed by performing RS-CRC (Cyclic Redundancy Check) encoding on a payload of the RS frame,

wherein the payload of the RS frame comprises a plurality of transport packets which include the mobile data for the service and a signaling table describing the service, wherein the signaling table includes a service labeling table having an identifier of the service and a short name of the service, and wherein the at least one RS frame is divided into a plurality of data portions to which the data groups are mapped;

building a the RS frame by collecting a plurality of data portions,

wherein the RS frame is a 2-dimensional data frame through which the ensemble is RS-CRC (Reed Solomon-cyclic redundancy check) encoded, and each row of a payload of the RS frame includes a transport packet of the mobile data; and

decoding the built RS frame.

7. The method of claim 6, wherein the signaling table is differentiated from a different signaling table from by using a table_id field and a table_id_extension field in a table section header of the signaling table.

8. The method of claim 6, wherein at least one of the plurality of transport packets includes an internet protocol (IP) datagram.

9. The method of claim 8, wherein the IP datagram includes the signaling table.

10. The method of claim 9, wherein the IP datagram including the signaling table has a well-known target IP address and a well-known target UDP port number.

11. 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 the multiplexed mobile data and main data,

wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data,

wherein each data group includes the mobile data and signaling information,

wherein the signaling information includes fast information channel (FIC) data having binding information between a service of the mobile data and an ensemble and transmission parameter channel (TPC) data indicating a version of the FIC data,

wherein the FIC data is divided into a plurality of FIC segment payloads, and each FIC segment including an FIC segment header and one of the plurality of FIC segment payloads is transmitted in each of the data groups,

wherein at least one Reed-Solomon (RS) frame belonging to the ensemble is formed by performing RS encoding and Cyclic Redundancy Check (CRC) encoding on a payload of the RS frame, wherein the payload of the RS frame comprises a plurality of transport packets which include the mobile data for the service and a signaling table describing the service,

wherein the signaling table includes a service labeling table having an identifier of the service and a short name of the service, and

wherein the at least one RS frame is divided into a plurality of data portions to which the data groups are mapped.

12. The apparatus of claim 11, wherein the signaling table is identified from a different signaling table by using a table_id field and a table_id_extension field in a table section header of the signaling table.

13. The apparatus of claim 11, wherein at least one of the plurality of transport packets includes an internet protocol (IP) datagram.

14. The apparatus of claim 13, wherein the IP datagram includes the signaling table.

15. The apparatus of claim 14, wherein the IP datagram including the signaling table has a well-known target IP address and a well-known target UDP port number.

16. An apparatus for receiving a broadcast signal, the apparatus comprising:

a tuner configured to receive a broadcast signal including a transmission frame, wherein a parade of data groups in the broadcast signal is received during slots within the transmission frame, the slots being basic time periods for multiplexing of mobile data and main data, and each data group includes the mobile data and signaling information;

a demodulator configured to demodulate the broadcast signal and obtain, from the signaling information, fast information channel (FIC) data having binding information between a service of the mobile data and an ensemble and transmission parameter channel (TPC) data indicating a version of the FIC data,

wherein the FIC data is divided into a plurality of FIC segment payloads, and each FIC segment including an FIC segment header and one of the plurality of FIC segment payloads is received in each of the data groups,

wherein at least one Reed-Solomon (RS) frame belonging to the ensemble is formed by performing RS-CRC (Cyclic Redundancy Check) encoding on a payload of the RS frame, wherein the payload of the RS frame comprises a plurality of transport packets which include the mobile data for the service and a signaling table describing the service,

wherein the signaling table includes a service labeling table having an identifier of the service and a short name of the service,

wherein the at least one RS frame is divided into a plurality of data portions to which the data groups are mapped; and

an RS frame decoder configured to build the RS frame by collecting a plurality of data portions, and decode the built RS frame.

17. The apparatus of claim 16, wherein the signaling table is identified from a different signaling table by using a table_id field and a table_id_extension field in a table section header of the signaling table.

18. The apparatus of claim 16, wherein at least one of the plurality of transport packets includes an internet protocol (IP) datagram.

19. The apparatus of claim 18, wherein the IP datagram includes the signaling table.

20. The apparatus of claim 19, wherein the IP datagram including the signaling table has a well-known target IP address and a well-known target UDP port number.