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

• US 10,609,520 B2
• Filed: 06/22/2017
• Issued: 03/31/2020
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• 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): Alphonse, Fritz
• Application Number:
  US15/630,799
• Publication Number:
  US 20170289775A1
• Time in Patent Office: 1,013 Days
• Field of Search: 714776
• 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 of processing data in a receiving system, the method comprising:

receiving, by a tuner, a broadcast signal including service data for a service, transmission parameters for the service data, fast service acquisition data that is related to the service, and service signaling data describing the service, the transmission parameters encoded at a code rate;

demodulating, by a demodulator, the received broadcast signal;

decoding, by a signaling decoder, the transmission parameters in the demodulated broadcast signal;

performing, by a decoder, error correction decoding on the service data in the demodulated broadcast signal based on the decoded transmission parameters; and

acquiring, by a processor, at least one component of the service from the error correction decoded service data based on the fast service acquisition data and the service signaling data,

wherein the fast service acquisition data includes broadcast stream identification information related to the service and channel number information for indicating a major channel number and a minor channel number related to the service, and

wherein the service signaling data includes service identification information for identifying the service, information for indicating whether the service is active, name information of the service, and service component information of the service.

2. The method of claim 1, wherein the fast service acquisition data further includes service type information for indicating a type of the service.

3. The method of claim 1, wherein the service component information includes Internet Protocol (IP) address information and User Datagram Protocol (UDP) port number information for at least one component of the service.

4. A receiving system for processing data, the receiving system comprising:

a tuner to receive a broadcast signal including service data for a service, transmission parameters for the service data, fast service acquisition data that is related to the service, and service signaling data describing the service, the transmission parameters encoded at a code rate;

a demodulator to demodulate the received broadcast signal;

a signaling decoder to decode the transmission parameters in the demodulated broadcast signal;

a decoder to perform error correction decoding on the service data in the demodulated broadcast signal based on the decoded transmission parameters; and

a processor to acquire at least one component of the service from the error correction decoded service data based on the fast service acquisition data and the service signaling data,

wherein the fast service acquisition data includes broadcast stream identification information related to the service and channel number information for indicating a major channel number and a minor channel number related to the service, and

wherein the service signaling data includes service identification information for identifying the service, information for indicating whether the service is active, name information of the service, and service component information of the service.

5. The receiving system of claim 4, wherein the fast service acquisition data further includes service type information for indicating a type of the service.

6. The receiving system of claim 4, wherein the service component information includes Internet Protocol (IP) address information and User Datagram Protocol (UDP) port number information for at least one component of the service.