Digital broadcasting system and data processing method

• US 8,654,693 B2
• Filed: 11/16/2011
• Issued: 02/18/2014
• Est. Priority Date: 07/25/2007
• 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, Hong, Ho Taek, Kwak, Kook Yeon, Kim, Byoung Gill, Suh, Jong Yeul, Kim, Jin Pil, Song, Won Gyu, Lee, Chul Soo, Kim, Jin Woo, Lee, Hyoung Gon, Lee, Joon Hui
• Primary Examiner(s): BLANTON, JOHN D
• Application Number:
  US13/298,223
• Publication Number:
  US 20120063455A1
• Time in Patent Office: 825 Days
• Field of Search: None
• US Class Current: 370/310
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/15 Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes H03M13/17 takes precedence
• CPC Class Codes: H03M 13/1515 Reed-Solomon codes
• CPC Class Codes: H03M 13/23 using convolutional codes, e.g. unit memory codes
• CPC Class Codes: H03M 13/2915 with an error detection code in one dimension
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H03M 13/2945 using at least three error correction codes H03M13/2957 takes precedence
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04N 21/23611 Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate synchronisation arrangements in time-division multiplex systems using bit stuffing for systems with different or fluctuating information rates H04J3/073
• CPC Class Codes: H04N 21/23614 Multiplexing of additional data and video streams arrangements for simultaneous broadcast of plural pieces of information H04H20/28
• CPC Class Codes: H04N 21/2362 Generation or processing of Service Information [SI]
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• 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 21/4348 Demultiplexing of additional data and video streams
• CPC Class Codes: H04N 21/4381 Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• 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
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• 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 method of processing broadcast data in a broadcast transmitting system includes Reed-Solomon (RS) encoding and Cyclic Redundancy Check encoding an RS frame payload including mobile service data to build an RS frame, wherein the RS frame payload comprises a plurality of mobile and handheld transport packets; first encoding data of the RS frame with a first encoding code; second encoding signaling data with a second encoding code, wherein the signaling data include fast information channel (FIC) data and transmission parameter channel (TPC) data, the FIC data including information for rapid mobile service acquisition and the TPC data including a parade identifier for identifying a parade to which a current data group belongs; mapping the first encoded data into data groups and adding known data sequences and the second encoded signaling data to each of the data groups; and transmitting a transmission frame including data of the data groups.

Claims

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

Reed-Solomon (RS) encoding and Cyclic Redundancy Check (CRC) encoding an RS frame payload including mobile service data to build an RS frame, wherein the RS frame payload comprises a plurality of mobile and handheld (M/H) transport packets, wherein each M/H transport packet includes an M-byte header, k bytes of stuffing data and an (N-M-k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the M/H transport packet, and wherein N and M are integers and k is equal to or greater than 0;

first encoding data of the RS frame with a first encoding code;

second encoding signaling data with a second encoding code, wherein the signaling data include fast information channel (FIC) data and transmission parameter channel (TPC) data, and wherein the FIC data include information for rapid mobile service acquisition and the TPC data include a parade identifier for identifying a parade to which a current data group belongs;

mapping the first encoded data into data groups and adding known data sequences and the second encoded signaling data to each of the data groups; and

transmitting a transmission frame including data of the data groups.

2. The method of claim 1, wherein the header of the M/H transport packet further includes pointer field information indicating a start location of a new IP datagram following an IP datagram of the mobile service data in the payload of the M/H transport packet.

3. The method of claim 2, wherein a length of the stuffing data is 1 byte when a value of a first data byte next to the pointer field information is 0xFF.

4. The method of claim 2, wherein a length of the stuffing data is 2 bytes when values of first and second data bytes next to the pointer field information are 0xFE and 0xFF, respectively.

5. The method of claim 2, wherein a length of the stuffing data is determined based on values of first and second data bytes next to the pointer field information when the value of the first data byte is not 0xFF or the values of the first and second data bytes are not 0xFE and 0xFF, respectively.

6. The method of claim 1, wherein the M/H transport packet comprises the header and the payload only, when the stuffing indication information indicates that the stuffing data are not included in the M/H transport packet.

7. The method of claim 1, wherein the header of the M/H transport packet further includes error indication information indicating whether the M/H transport packet contains an error.

8. The method of claim 1, wherein the first encoding code is a Serial Concatenated Convolutional Code (SCCC) and the second encoding code is a Parallel Concatenated Convolutional Code (PCCC).

9. A broadcast transmitting system comprising:

a Reed-Solomon (RS) frame encoder for RS encoding and Cyclic Redundancy Check (CRC) encoding an RS frame payload including mobile service data to build an RS frame, wherein the RS frame payload comprises a plurality of mobile and handheld (M/H) transport packets, wherein each M/H transport packet includes an M-byte header, k bytes of stuffing data and an (N-M-k)-byte payload, wherein the header includes stuffing indication information indicating whether the stuffing data are included in the M/H transport packet, and wherein N and M are integers and k is equal to or greater than 0;

a block processor for first encoding data of the RS frame with a first encoding code;

a signaling encoder for second encoding signaling data with a second encoding code, wherein the signaling data include fast information channel (FIC) data and transmission parameter channel (TPC) data, and wherein the FIC data include information for rapid mobile service acquisition and the TPC data include a parade identifier for identifying a parade to which a current data group belongs;

a group formatter for mapping the first encoded data into data groups and adding known data sequences and the second encoded signaling data to each of the data groups; and

a transmitting unit for transmitting a transmission frame including data of the data groups.

10. The broadcast transmitting system of claim 9, wherein the header of the M/H transport packet further includes pointer field information indicating a start location of a new IP datagram following an IP datagram of the mobile service data in the payload of the M/H transport packet.

11. The broadcast transmitting system of claim 10, wherein a length of the stuffing data is 1 byte when a value of a first data byte next to the pointer field information is 0xFF.

12. The broadcast transmitting system of claim 10, wherein a length of the stuffing data is 2 bytes when values of first and second data bytes next to the pointer field information are 0xFE and 0xFF, respectively.

13. The broadcast transmitting system of claim 10, wherein a length of the stuffing data is determined based on values of first and second data bytes next to the pointer field information when the value of the first data byte is not 0xFF or the values of the first and second data bytes are not 0xFE and 0xFF, respectively.

14. The broadcast transmitting system of claim 9, wherein the M/H transport packet comprises the header and the payload only, when the stuffing indication information indicates that the stuffing data are not included in the M/H transport packet.

15. The broadcast transmitting system of claim 9, wherein the header of the M/H transport packet further includes error indication information indicating whether the M/H transport packet contains an error.

16. The broadcast transmitting system of claim 9, wherein the first encoding code is a Serial Concatenated Convolutional Code (SCCC) and the second encoding code is a Parallel Concatenated Convolutional Code (PCCC).