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

• US 8,149,775 B2
• Filed: 04/10/2009
• Issued: 04/03/2012
• Est. Priority Date: 04/13/2008
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Song, Jae Hyung, Lee, Chul Soo, Hong, Sung-Ryong, Thomas, Gomer
• Primary Examiner(s): YAO, KWANG BIN
• Assistant Examiner(s): Liu, Jung-Jen
• Application Number:
  US12/421,830
• Publication Number:
  US 20090257391A1
• Time in Patent Office: 1,089 Days
• Field of Search: 370/203, 370204-215, 370229-240, 370241-253, 370310-337, 370338-350, 370/395.1, 370/395.3, 370/395.4, 370/395.41, 370/395.42, 370/395.5, 370/395.52, 370/395.53, 370412-421, 370431-457, 370458-463, 370464-497, 370498-529
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• CPC Class Codes: H04L 1/0082 fields explicitly indicating existence of error in data being transmitted, e.g. so that downstream stations can avoid decoding erroneous packet; relays
• CPC Class Codes: H04N 21/64315 DVB-H
• 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 signaling decoder, and an FIC handler. The receiving unit receives a broadcast signal including mobile service data configuring a data group. Herein, a transmission frame consists of multiple sub-frame, a sub-frame consists of multiple slots, and the data group is allocated to at least one slot. The signaling decoder acquires an FIC segment from the broadcast signal. Herein the FIC segment consists of an 35-byte FIC segment payload including a portion of a signaling information between at least one ensemble and at least one mobile service, and an 2-byte FIC segment header including current/next (C/N) indication information indicating whether data of the FIC segment payload corresponds to information of a current transmission frame or to information of a next transmission frame. The FIC handler recovers at least one of an FIC chunk including signaling information between at least one ensemble and at least one mobile service of the current transmission frame and an FIC chunk including signaling information between at least one ensemble and at least one mobile service of the next transmission frame, from the payload of each FIC segment by using the C/N indication information.

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, in order to package the mobile service data into at least one of a plurality of RS frames;

mapping the at least one of a plurality of RS frames into a plurality of groups, wherein each of the plurality of groups comprises a portion of data included in a corresponding RS frame, known data sequences, a fast information channel (FIC) segment, and transmission parameter channel (TPC) data; and

transmitting a current mobile and handheld (M/H) frame including the plurality of groups,

wherein the FIC segment comprises a 2-byte segment header and a 35-byte segment payload that includes a portion of an FIC chunk, the FIC chunk including information for rapid mobile service acquisition and comprising an FIC chunk header and an FIC chunk payload,

wherein the FIC chunk header comprises a first current and next (C/N) indicator field,

wherein the 2-byte segment header comprises a second C/N indicator field having a same value as the first C/N indicator field,

wherein at least the first or second C/N indicator field indicates whether the FIC chunk is applicable to a current M/H frame or a next M/H frame, and

wherein the TPC data comprises FIC version information for indicating an update of the FIC chunk.

2. The method of claim 1, wherein the 2-byte segment header further comprises type information indicating a type of data carried in the FIC segment.

3. The method of claim 1, wherein the 2-byte segment header further comprises error indication information indicating whether the FIC segment contains an error.

4. The method of claim 1, wherein the 2-byte segment header further comprises FIC chunk protocol version information indicating a protocol version of the FIC chunk that is being carried in part through the 35-byte segment payload of the FIC segment.

5. The method of claim 1, wherein at least two of the known data sequences are spaced 16 segments apart and at least two of the known data sequences have different lengths.

6. A broadcast transmitter comprising:

a Reed Solomon (RS) encoder for performing RS encoding and Cyclic Redundancy Check (CRC) encoding on mobile service data, thereby packaging the mobile service data into at least one of a plurality of RS frames;

a group formatting means for mapping the at least one of the plurality of RS frames into a plurality of groups, wherein each of the plurality of groups includes a portion of data included in a corresponding RS frame, known data sequences, a fast information channel (FIC) segment, and transmission parameter channel (TPC) data; and

,

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

wherein the FIC segment comprises a 2-byte segment header and a 35-byte segment payload that includes a portion of an FIC chunk, the FIC chunk including information for rapid mobile service acquisition and comprising an FIC chunk header and an FIC chunk payload,

wherein the FIC chunk header comprises a first current and next (C/N) indicator field,

wherein the 2-byte segment header comprises a second C/N indicator field having a same value as the first C/N indicator field,

wherein at least the first or second C/N indicator field indicates whether the FIC chunk is applicable to a current mobile and handheld (M/H) frame or a next M/H frame, and

wherein the TPC data comprises FIC version information for indicating an update of the FIC chunk.

7. The broadcast transmitter of claim 6, wherein the 2-byte segment header further comprises type information indicating a type of data carried in the FIC segment.

8. The broadcast transmitter of claim 6, wherein the 2-byte segment header further comprises error indication information indicating whether the FIC segment contains an error.

9. The broadcast transmitter of claim 6, wherein the 2-byte segment header further comprises FIC chunk protocol version information indicating a protocol version of the FIC chunk that is being carried in part through the 35-byte segment payload of the FIC segment.

10. The broadcast transmitter of claim 6, wherein at least two of the known data sequences are spaced 16 segments apart and at least two of the known data sequences have different lengths.