DIGITAL BROADCASTING RECEIVER AND METHOD FOR CONTROLLING THE SAME

• US 20090080573A1
• Filed: 09/22/2008
• Published: 03/26/2009
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Suh, Jong Yeul, Choi, In Hwan, Lee, Chul Soo, Kim, Jin Pil, Song, Jae Hyung
• Granted Patent: US 7,813,310 B2
• Time in Patent Office: Days
• US Class Current: 375/321
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 20/95 characterised by a specific format, e.g. an encoded audio stream
• 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 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• 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 for processing data in a reception system, the method comprising:

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;

parsing the table from the RS frame and extracting the signaling information of the second service data; and

parsing the second service data from the RS frame on the basis of the extracted signaling information.

2. The method of claim 1, wherein at least one data group configuring the RS frame includes a plurality of known data sequences, a signaling information zone is included between a first known data sequence and a second known data sequence of the known data sequences, and the signaling information zone includes transmission parameter channel (TPC) signaling and fast information channel (FIC) signaling.

3. The method of claim 1, wherein:

the RS frame is configured by an RS frame header and an RS frame payload, and the RS frame payload includes a transport packet configured by packetizing at least one piece of data, for a second service.

4. The method of claim 3, wherein the RS frame header includes at least one of first information for identifying the type of data in the transport packet transmitted via the payload, second information indicating whether or not an error is included in the transport packet transmitted via the payload, third information indicating whether or not stuffing bytes are included in the RS frame, and fourth information indicating a start point of new data in the transport packet transmitted via the payload.

5. The method of claim 4, wherein the first information identifies the type of the data in the transmitted transport packet, and the type is identified by data for a first service and data for the second service.

6. The method of claim 3, wherein the transport packet transmitted via the payload includes a flow packet including the data for the second service.

7. The method of claim 6, wherein:

the flow packet is configured by a flow packet header and a flow packet payload, and the flow packet payload includes a layer packet packetized in at least one layer for the second service and length information indicating the length of the layer packet.

8. The method of claim 7, wherein the flow packet header includes at least one of an identifier for identifying the layer packet included in the flow packet, information indicating whether the flow packet is transmitted over at least one RS frame, information indicating whether cyclic redundancy check (CRC) is applied to the flow packet, and information indicating the number of layer packets included in the flow packet.

9. A reception system comprising:

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.

10. The reception system of claim 9, wherein at least one data group configuring the RS frame includes a plurality of known data sequences, a signaling information zone is included between a first known data sequence and a second known data sequence of the known data sequences, and the signaling information zone includes transmission parameter channel (TPC) signaling and fast information channel (FIC) signaling.

11. The reception system of claim 9, wherein the baseband processor further includes a known data detector detecting the known data sequences included in the data group, and the detected known data sequences are used for demodulation and channel equalization of the mobile service data.

12. The reception system of claim 9, wherein:

the table handler extracts the table including the signaling information of the second service data from the RS frame configured by an RS frame header and an RS frame payload, and the RS frame payload includes a transport packet configured by packetizing at least one piece of data, for a second service.

13. The reception system of claim 12, wherein:

the table handler extracts and uses the RS frame header including at least one of first information for identifying the type of data in the transport packet transmitted via the payload, second information indicating whether or not an error is included in the transport packet transmitted via the payload, third information indicating whether or not stuffing bytes are included in the RS frame, and fourth information indicating a start point of new data in the transport packet transmitted via the payload, and one of the service handlers is selected by identifying whether the type of the data in the transmitted transported packet include the first service data or the second service data from the extracted first information.

14. The reception system of claim 13, wherein:

the selected service handler processes the transport packet transmitted via the RS frame payload,

the transport packet includes a flow packet including data for the second service, and

the flow packet includes a flow packet header and a flow packet payload including a layer packet packetized in at least one layer for the second service and length information indicating the length of the layer packet.

15. The reception system of claim 14, wherein the service handlers process the flow packet header including at least one of an identifier for identifying the layer packet included in the flow packet, information indicating whether the flow packet is transmitted over at least one RS frame, information indicating whether cyclic redundancy check (CRC) is applied to the flow packet, and information indicating the number of layer packets included in the flow packet.