Digital broadcasting system and data processing method in the digital broadcasting system

• US 9,137,643 B2
• Filed: 05/24/2013
• Issued: 09/15/2015
• Est. Priority Date: 09/21/2007
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lee, Chul Soo, Choi, In Hwan, Song, Jae Hyung, Choi, Seung Jong
• Primary Examiner(s): Mui, Gary
• Application Number:
  US13/902,653
• Publication Number:
  US 20130258981A1
• Time in Patent Office: 844 Days
• Field of Search: None
• US Class Current: 1/1
• 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 13/27 using interleaving techniques
• CPC Class Codes: H03M 13/2906 using block codes H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H04H 20/30 by a single channel
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0058 Block-coded modulation
• CPC Class Codes: H04L 1/0075 Transmission of coding parameters to receiver H04L1/0023 takes precedence
• 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: 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: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A digital broadcasting system and a data processing method are disclosed. In an aspect of the present invention, the present invention provides a data processing method including receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the received broadcast signal, outputting demodulation time information of a specific position of a broadcast signal frame, and acquiring reference time information contained in the mobile service data frame, setting the reference time information to a system time clock at a specific time based on the demodulation time information and decoding the mobile service data according to the system time clock.

Claims

1. A method for transmitting a broadcast signal, the method comprising:

allocating mobile data and main data to a transmission frame; and

transmitting the transmission frame including the allocated mobile data and main data and further including fast information channel (FIC) data and a transmission parameter,

wherein the FIC data includes binding information related to a service of the mobile data,

wherein the transmission frame further includes signaling data describing the service,

wherein the signaling data includes Internet Protocol (IP) address information and IP component level information for the service, and

wherein the mobile data is Reed Solomon-cyclic redundancy check (RS-CRC) encoded.

2. The method of claim 1, wherein the FIC data is transmitted in a specific area of the transmission frame.

3. The method of claim 2, wherein the transmission parameter is encoded by a code rate that is different from a code rate for encoding the mobile data.

4. The method of claim 1, wherein the transmission parameter includes a code rate for encoding the mobile data.

5. The method of claim 1, wherein the transmission frame further includes known data sequences.

6. An apparatus for transmitting a broadcast signal, the apparatus comprising:

an encoder to encode mobile data; and

a transmitter to transmit a transmission frame including the encoded mobile data and main data and further including fast information channel (FIC) data and a transmission parameter,

wherein the FIC data includes binding information related to a service of the mobile data,

wherein the transmission frame further includes signaling data describing the service,

wherein the signaling data includes Internet Protocol (IP) address information and IP component level information for the service, and

wherein the mobile data is Reed Solomon-cyclic redundancy check (RS-CRC) encoded.

7. The apparatus of claim 6, wherein the FIC data is transmitted in a specific area of the transmission frame.

8. The apparatus of claim 7, wherein the transmission parameter is encoded by a code rate that is different from a code rate for encoding the mobile data.

9. The apparatus of claim 6, wherein the transmission parameter further includes a code rate for encoding the mobile data.

10. The apparatus of claim 6, wherein each the transmission frame further includes known data sequences.