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

• US 7,965,778 B2
• Filed: 08/25/2008
• Issued: 06/21/2011
• Est. Priority Date: 08/24/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Suh, Jong Yeul, Choi, In Hwan, Lee, Chul Soo, Kim, Jin Pil, Song, Jae Hyung
• Primary Examiner(s): RAO, ANAND SHASHIKANT
• Application Number:
  US12/198,038
• Publication Number:
  US 20090060030A1
• Time in Patent Office: 1,030 Days
• Field of Search: 37524001-24029, 375/316, 455/3.02
• US Class Current: 375/240.26
• 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, the method comprising:

multiplexing mobile data and main data; and

transmitting a transmission frame including the multiplexed mobile data and main data,

wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being time periods for multiplexing of the mobile data and the main data,

wherein data groups include the mobile data, signaling information and known data sequences,

wherein the signaling information includes fast information channel (FIC) data having binding information between a service of the mobile data and an ensemble, and transmission parameter channel (TPC) data having version information of the FIC data,

wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment including an FIC segment header is transmitted in each of the data groups,

wherein the ensemble includes the service and a signaling table describing the service,

wherein the service includes a mobile service component, and the signaling table includes a service map table having an encoding parameter identifying an encoding format of the mobile service component, and

wherein the ensemble is RS-CRC (cyclic redundancy check) encoded through a Reed-Solomon (RS) frame which is 2-dimensional data frame, and a row of a payload of the RS frame includes a transport packet of the mobile data.

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

receiving a broadcast signal including a transmission frame,

wherein a parade of data groups is received during slots within the transmission frame, the slots being time periods for multiplexing of mobile data and main data, and

wherein data groups include the mobile data, signaling information and known data sequences;

demodulating the broadcast signal and obtaining, from the signaling information, fast information channel (FIC) data including binding information between a service of the mobile data and an ensemble, and transmission parameter channel (TPC) data having a version of the FIC data,

wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment including an FIC segment header is received in each of the data groups,

wherein the ensemble includes the service and a signaling table describing the service, and

wherein the service includes a mobile service component and the signaling table includes a service map table having an encoding parameter identifying an encoding format of the mobile service component;

building a Reed-Solomon (RS) frame corresponding to the ensemble by collecting a plurality of data portions to which the data groups are mapped,

wherein the RS frame is 2-dimensional data frame through which the ensemble is RS-CRC (cyclic redundancy check) encoded, and a row of a payload of the RS frame including a transport packet of the mobile data; and

decoding the built RS frame.

4. The method of claim 3, wherein a value of the encoding format represents a payload type of a Real-time Transport Protocol (RTP) stream.