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

• US 8,848,685 B2
• Filed: 07/20/2009
• Issued: 09/30/2014
• 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:
  US12/506,114
• Publication Number:
  US 20100195638A1
• Time in Patent Office: 1,898 Days
• Field of Search: 370/349, 375/265, 375/240.25
• US Class Current: 370/349
• 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: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

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 from at least one slot. The first processing unit acquires FIC segments divided from an FIC chunk of at least one sub-frame. Herein, each FIC segment comprises a 2-byte segment header and a 35-byte segment payload. The segment header includes an FIC type information, a number of a corresponding FIC segment, and a number of a last FIC segment among the FIC segments divided from the FIC chunk. The second processing unit obtains the FIC chunk including signaling information between at least one ensemble and at least one mobile service from respective payloads of the FIC segments, based upon the acquired FIC type information, number of the corresponding FIC segment, and number of the last FIC segment of each FIC segment.

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;

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 an FIC chunk including an FIC chunk header and an FIC chunk payload is segmented into a plurality of FIC segment payloads in order to generate a plurality of FIC segments,

wherein the plurality of FIC segments are generated by adding an FIC segment header to each of the plurality of FIC segment payloads,

wherein the FIC chunk header includes first FIC chunk major protocol version information that comprises two bits and indicates a major version level of a syntax of the FIC chunk and FIC chunk minor protocol version information that comprises three bits and indicates a minor version level of the syntax of the FIC chunk,

wherein each FIC segment header includes second FIC chunk major protocol version information that comprises two bits having a same value as the first FIC chunk major protocol version information and indicates the major version level of the syntax of the FIC chunk,

wherein each FIC segment header further includes an error indicator indicating whether at least one error is detected in the corresponding FIC segment, and

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

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

3. The method of claim 1, wherein each FIC segment header further includes a number of the corresponding FIC segment and a number of a last FIC segment among the plurality of FIC segments that are segmented from the FIC chunk.

4. The method of claim 1, wherein:

the transmission frame further includes a plurality of sub-frames; and

the TPC data further comprise a total number of data groups to be transmitted during each of the plurality of sub-frames of the transmission frame.

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, 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 an FIC chunk including an FIC chunk header and an FIC chunk payload is segmented into a plurality of FIC segment payloads in order to generate a plurality of FIC segments,

wherein the plurality of FIC segments are generated by adding an FIC segment header to each of the plurality of FIC segment payloads,

wherein the FIC chunk header includes first FIC chunk major protocol version information that comprises two bits and indicates a major version level of a syntax of the FIC chunk and FIC chunk minor protocol version information that comprises three bits and indicates a minor version level of the syntax of the FIC chunk,

wherein each FIC segment header includes second FIC chunk major protocol version information that comprises two bits having a same value as the first FIC chunk major protocol version information and indicates the major version level of the syntax of the FIC chunk,

wherein each FIC segment header further includes an error indicator indicating whether at least one error is detected in the corresponding FIC segment, and

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

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

7. The broadcast transmitter of claim 5, wherein each FIC segment header further includes a number of the corresponding FIC segment and a number of a last FIC segment among the plurality of FIC segments that are segmented from the FIC chunk.

8. The broadcast transmitter of claim 5, wherein:

the transmission frame further includes a plurality of sub-frames; and

the TPC data further includes a total number of data groups to be transmitted during each of the plurality sub-frames of the transmission frame.