Transmitting/receiving system and method of processing data in the transmitting/receiving system

• US 8,855,098 B2
• Filed: 07/20/2009
• Issued: 10/07/2014
• Est. Priority Date: 02/02/2009
• 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, Thomas, Gomer
• Primary Examiner(s): RENNER, BRANDON M
• Application Number:
  US12/506,171
• Publication Number:
  US 20100195639A1
• Time in Patent Office: 1,905 Days
• Field of Search: 370/349, 375/240.25, 375/265
• US Class Current: 370/349
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04H 20/95 characterised by a specific format, e.g. an encoded audio stream
• CPC Class Codes: H04H 60/25 Arrangements for updating broadcast information or broadcast-related information
• CPC Class Codes: H04L 1/0042 Encoding specially adapted to other signal generation operation, e.g. in order to reduce transmit distortions, jitter, or to improve signal shape H04L1/0067 takes precedence

Abstract

A transmitting/receiving system and a data processing method of the same are disclosed herein. The receiving system may include a receiving unit, a first processing unit, and a second processing unit. The receiving unit receives a broadcast signal including mobile service data and an FIC segment from at least one slot. Herein, a transmission frame may be configured of a plurality of sub-frames for receiving at least one ensemble and at least one mobile service, and a sub-frame may be configured of a plurality of slots. The a first processing unit extracts FIC segments each having a different FIC chunk major protocol version from the broadcast signal, and acquires a number of the corresponding FIC segment, a number of the last FIC segment, and FIC chunk major protocol version information from each segment header of the extracted FIC segments. The second processing unit obtains an FIC chunk including signaling information between at least one ensemble and at least one mobile service frame from respective payloads of the FIC segments, based upon the acquired number of the corresponding FIC segment, number of the last FIC segment, and FIC chunk major protocol version information.

Claims

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

performing, by a Reed Solomon (RS) frame encoder, RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data in order to generate an RS frame belonging to an ensemble;

mapping a portion of the RS frame into at least one of a plurality of regions of a data group, the data group including known data sequences, a fast information channel (FIC) segment and transmission parameter channel (TPC) data; and

transmitting a transmission frame including data of the data group,

wherein the FIC segment in the transmitted data group includes an FIC segment header and an FIC segment payload,

wherein the FIC segment header comprises an error indicator for indicating whether at least one error is detected in the FIC segment and type information for indicating a type of data carried in the FIC segment,

wherein the type information indicates that the FIC segment payload is carrying a portion of an FIC chunk when a value of the type information is set to ‘

00’

,

wherein the type information indicates that the FIC segment is a null FIC segment not carrying a portion of the FIC chunk when the value of the type information is set to ‘

11’

,

wherein the FIC chunk includes an FIC chunk header and an FIC chunk payload,

wherein the FIC chunk payload includes an ensemble identifier for identifying the ensemble and protocol version information that indicates a version of a structure of the ensemble,

wherein a size of the FIC chunk is determined by a number of ensembles and a number of mobile services provided in a physical transmission channel,

and

wherein the TPC data comprise FIC version information for indicating a change of contents in the FIC chunk.

2. The method of claim 1, wherein the FIC chunk header includes first protocol version information indicating a major version level of a syntax of the FIC chunk and second protocol version information indicating a minor version level of the syntax of the FIC chunk.

3. The method of claim 1, wherein a size of the FIC segment header is 2-bytes and a size of the FIC segment payload is 35-bytes.

4. The method of claim 3, wherein the FIC chunk further includes N stuffing data bytes, wherein N is a minimum integer equal to or greater than ‘

0’

needed to make a length of the FIC chunk evenly divisible by 35-bytes.

5. A broadcast transmitter comprising:

a Reed Solomon (RS) frame encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data in order to generate an RS frame belonging to an ensemble, wherein a portion of the RS frame is mapped into at least one of a plurality of regions of a data group, the data group including known data sequences, a fast information channel (FIC) segment and transmission parameter channel (TPC) data; and

a transmitting unit for transmitting a transmission frame including data of the data group,

wherein the FIC segment in the transmitted data group includes an FIC segment header and an FIC segment payload,

wherein the FIC segment header comprises an error indicator for indicating whether at least one error is detected in the FIC segment and type information for indicating a type of data carried in the FIC segment,

wherein the type information indicates that the FIC segment payload is carrying a portion of an FIC chunk when a value of the type information is set to ‘

00’

,

wherein the type information indicates that the FIC segment is a null FIC segment not carrying a portion of the FIC chunk when the value of the type information is set to ‘

11’

,

wherein the FIC chunk includes an FIC chunk header and an FIC chunk payload,

wherein the FIC chunk payload includes an ensemble identifier for identifying the ensemble and protocol version information that indicates a version of a structure of the ensemble,

wherein a size of the FIC chunk is determined by a number of ensembles and a number of mobile services provided in a physical transmission channel,

and

wherein the TPC data comprise FIC version information for indicating a change of contents in the FIC chunk.

6. The broadcast transmitter of claim 5, wherein the FIC chunk header includes first protocol version information indicating a major version level of a syntax of the FIC chunk and second protocol version information indicating a minor version level of the syntax of the FIC chunk.

7. The broadcast transmitter of claim 5, wherein a size of the FIC segment header is 2-bytes and a size of the FIC segment payloads is 35-bytes.

8. The broadcast transmitter of claim 7, wherein the FIC chunk further includes N stuffing data bytes, wherein N is a minimum integer equal to or greater than ‘

0’

needed to make a length of the FIC chunk evenly divisible by 35-bytes.