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

• US 8,964,856 B2
• Filed: 12/07/2010
• Issued: 02/24/2015
• Est. Priority Date: 08/24/2007
• 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, Suh, Jong Yeul, Kim, Jin Pil, Lee, Chul Soo
• Primary Examiner(s): Rao, Andy
• Application Number:
  US12/962,500
• Publication Number:
  US 20110075725A1
• Time in Patent Office: 1,540 Days
• Field of Search: 37524001-24029, 375/316, 725/48, 725109-112, 725/141, 725/153, 455/3.02
• US Class Current: 375/240.27
• 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 13/2721 the interleaver involves a diagonal direction, e.g. by using an interleaving matrix with read-out in a diagonal direction
• CPC Class Codes: H03M 13/2915 with an error detection code in one dimension
• CPC Class Codes: H03M 13/2918 with error correction codes in three or more dimensions, e.g. 3-dimensional product code where the bits are arranged in a cube
• CPC Class Codes: H03M 13/2921 wherein error correction coding involves a diagonal direction
• CPC Class Codes: H03M 13/293 with erasure setting
• CPC Class Codes: H03M 13/2936 comprising an outer Reed-Solomon code and an inner convolutional code
• CPC Class Codes: H03M 13/2948 Iterative decoding H03M13/2957 takes precedence
• CPC Class Codes: H03M 13/356 Unequal error protection [UEP]
• CPC Class Codes: H04B 7/06 at the transmitting station
• CPC Class Codes: H04B 7/08 at the receiving station
• CPC Class Codes: H04H 20/57 for mobile receivers
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04L 1/0045 Arrangements at the receiver end
• CPC Class Codes: H04L 1/0047 Decoding adapted to other signal detection operation in conjunction with sequence estimation or equalization H04L25/03286
• CPC Class Codes: H04L 1/006 Trellis-coded modulation
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 5/22 using time-division multiplexing
• CPC Class Codes: H04L 65/611 : for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• 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 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/4345 : Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/4382 : 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 21/6131 : involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6336 : directed to decoder
• CPC Class Codes: H04N 21/64322 : IP
• CPC Class Codes: H04N 21/6437 : Real-time Transport Protocol [RTP]

Abstract

A digital broadcasting system and a data processing method are disclosed. A receiving system of the digital broadcasting system includes a receiving unit, an SI handler, and a decoding unit. The receiving unit receives broadcast signals including mobile service data and main service data. Herein, the mobile service data may configure a data group, and the data group may include a signaling information region in some of a plurality of data regions. Also, the signaling information region may include TPC signaling data and FIC signaling data. The SI handler acquires channel configuration information of the mobile service data from the broadcast signal using pre-decided IP access information, and extracts encoding format information for each IP stream component within a corresponding virtual channel service RTP-packetized and received from the acquired channel configuration information. The decoding unit decodes the mobile service data of the corresponding IP stream component based upon the extracted encoding format information.

Claims

1. A method of transmitting a broadcast signal in a transmitter, the method comprising:

transmitting a transmission frame including a plurality of slots during which data groups of mobile data are transmitted, the mobile data being encoded through a Reed-Solomon (RS) frame, each data group including a plurality of regions, each region including a plurality of data blocks, each data block including contiguous data segments,

wherein first and second regions in each data group include at least three known data sequences which are spaced apart by regular data segments, and the first region further includes signaling information of the mobile data in specified data segments,

wherein the signaling information includes first channel information providing binding information between a mobile service identifier and an ensemble being a collection of services of the mobile data, and second channel information describing the transmission frame and the data groups,

wherein the ensemble includes a service map table (SMT) providing IP address information for a service, and wherein the service includes a mobile service component and the SMT includes an encoding parameter identifying an encoding format of the mobile service component.

2. The method of claim 1, wherein a value of the encoding format represents a payload type of a Real-time Transport Protocol (RTP) stream.

3. The method of claim 1, wherein the SMT further includes an identifier of the ensemble.

4. The method of claim 3, wherein the second channel information includes an identifier of a parade which is a collection of the data groups.

5. The method of claim 4, wherein the identifier of a parade is bits generated by adding an additional bit to the identifier of the ensemble.

6. The method of claim 5, wherein the additional bit is determined by a type of the ensemble.

7. A method of receiving a broadcast signal in a receiver, the method comprising:

receiving a transmission frame including a plurality of slots during which data groups of mobile data are received, the mobile data being data encoded through a Reed-Solomon (RS) frame, each data group including a plurality of regions, each region including a plurality of data blocks, each data block including contiguous data segments,

wherein first and second regions in each data group include known data sequences which are spaced regular data segments apart, and the first region further includes a known data sequence and signaling information of the mobile data in specified data segments,

wherein the signaling information includes first channel information providing binding information between a mobile service identifier and an ensemble being a collection of services of the mobile data, and second channel information describing the transmission frame and the data groups,

wherein the ensemble includes a service map table (SMT) providing IP address information for a service, and

wherein the service includes a mobile service component, and the SMT includes an encoding parameter identifying an encoding format of the mobile service component;

building the RS frame using the data groups included in the transmission frame; and

decoding the RS frame.

8. The method of claim 7, wherein a value of the encoding format represents a payload type of a Real-time Transport Protocol (RTP) stream.

9. The method of claim 7, wherein the SMT further includes an identifier of the ensemble.

10. The method of claim 9, wherein the second channel information includes an identifier of a parade which is a collection of the data groups.

11. The method of claim 10, wherein the identifier of a parade is bits generated by adding an additional bit to the identifier of the ensemble.

12. The method of claim 11, wherein the additional bit is determined by a type of the ensemble.