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

• US 8,175,065 B2
• Filed: 08/25/2008
• Issued: 05/08/2012
• 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: Shin, Pil Sup, Choi, In Hwan, Kim, Jeong Woo, Song, Jae Hyung, Lee, Chul Soo
• Primary Examiner(s): Pwu, Jeffrey
• Assistant Examiner(s): Nooristany, Sulaiman
• Application Number:
  US12/197,949
• Publication Number:
  US 20090052583A1
• Time in Patent Office: 1,352 Days
• Field of Search: 370/335
• US Class Current: 370/335
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/414 Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/4345 Extraction or processing of SI, e.g. extracting service information from an MPEG stream
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006

Abstract

A digital broadcast system and data processing method therein are disclosed. A receiving system of the digital broadcast system includes a baseband processor, a table handler, a DSM-CC handler, and a display module. The baseband processor receives a broadcast signal including mobile service data and main service data. The mobile service data configures an RS frame, and the RS frame includes the mobile service data, DSM-CC (digital storage media-command and control) data and a table describing at least one channel configuration information on the mobile service data and signaling information of the DSM-CC data. The table handler extracts the at least one channel configuration information on the mobile service data and the signaling information of the DSM-CC data by parsing the table from the RS frame. The DSM-CC handler parses the DSM-CC data from the RS frame based on the extracted signaling information of the DSM-CC data. The DSM-CC handler stores the parsed DSM-CC data. The DSM-CC handler extracts a download estimated time from the DSM-CC data, and outputs the extracted download estimated time. The display module displays the download estimated time of the DSM-CC data outputted from the DSM-CC handler on a prescribed portion of a screen.

Claims

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

multiplexing mobile data and main data; and

transmitting a transmission frame including the multiplexed mobile and main data, wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data, wherein each data group includes the mobile data, signaling information and regularly spaced 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 indicating a version of the FIC data, wherein the FIC data includes an identifier of the ensemble and information indicating a number of services carried through the ensemble, wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment includes an FIC segment header and is transmitted in each of the data groups, wherein the ensemble includes the service and a signaling table describing the service, and wherein the ensemble is RS-CRC (Reed Solomon—

cyclic redundancy check) encoded through a 2-dimensional Reed-Solomon (RS) frame; and

each row of a payload of the RS frame includes a transport packet of the mobile data;

wherein the signaling table includes a service map table (SMT) which provides IP address information and IP component level information for the service;

wherein the SMT includes a flag indicating whether or not the IP address information is an IPv4 address.

2. The method of claim 1, wherein the SMT includes a descriptor which provides information about a start time, duration and title of a current program.

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

receiving a broadcast signal including a transmission frame, wherein a parade of data groups in the broadcast signal is received during slots within the transmission frame, the slots being basic time periods for multiplexing of mobile data and main data, and wherein each data group includes the mobile data, signaling information and regularly spaced 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 indicating a version of the FIC data, wherein the FIC data includes an identifier of the ensemble and information indicating a number of services carried through the ensemble, wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment includes an FIC segment header and is received in each of the data groups, and wherein the ensemble includes the service and a signaling table describing the service;

building a Reed-Solomon (RS) frame corresponding to the ensemble by collecting a plurality of data portions which are mapped to the data groups, wherein the RS frame is a 2-dimensional data frame through which the ensemble is RS-CRC (Reed Solomon—

cyclic redundancy check) encoded, and each row of a payload of the RS frame includes a transport packet of the mobile data; and

decoding the RS frame;

wherein the signaling table includes a service map table (SMT) which provides IP address information and IP component level information for the service;

wherein the SMT includes a flag indicating whether or not the IP address information is an IPv4 address.

4. The method of claim 3, wherein the SMT includes a descriptor which provides information about a start time, duration and title of a current program.

5. The method of claim 3, wherein decoding the RS frame comprising:

performing error detection on the RS frame by calculating CRC data; and

performing error correction decoding on data in the RS frame by RS decoding.

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

a multiplexer configured to multiplex mobile data and main data; and

a transmission unit configured to transmit a transmission frame including the multiplexed mobile and main data, wherein a parade of data groups is transmitted during slots within the transmission frame, the slots being basic time periods for multiplexing of the mobile data and the main data, wherein each data group includes the mobile data, signaling information and regularly spaced 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 indicating a version of the FIC data, wherein the FIC data includes an identifier of the ensemble and information indicating a number of services carried through the ensemble, wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment includes an FIC segment header and is transmitted in each of the data groups, wherein the ensemble includes the service and a signaling table describing the service, and wherein the ensemble is RS-CRC (Reed Solomon—

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

wherein the signaling table includes a service map table (SMT) which provides IP address information and IP component level information for the service;

wherein the SMT includes a flag indicating whether or not the IP address information is an IPv4 address.

7. The apparatus of claim 6, wherein the SMT includes a descriptor which provides information about a start time, duration and title of a current program.

8. An apparatus for receiving a broadcast signal, the apparatus comprising:

a tuner configured to receive a broadcast signal including a transmission frame, wherein a parade of data groups in the broadcast signal is received during slots within the transmission frame, the slots being basic time periods for multiplexing of mobile data and main data, and wherein each data group includes the mobile data, signaling information and regularly spaced known data sequences;

a demodulator configured to demodulate 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 indicating a version of the FIC data, wherein the FIC data includes an identifier of the ensemble and information indicating a number of services carried through the ensemble, wherein the FIC data is divided to a plurality of FIC segments, and each FIC segment includes an FIC segment header and is received in each of the data groups, and wherein the ensemble includes the service and a signaling table describing the service; and

an RS frame decoder configured to build a Reed-Solomon (RS) frame corresponding to the ensemble by collecting a plurality of data portions which are mapped to the data groups, and decode the RS frame, wherein the RS frame is a 2-dimensional data frame through which the ensemble is RS-CRC (Reed Solomon—

cyclic redundancy check) encoded, and each row of a payload of the RS frame includes a transport packet of the mobile data;

wherein the signaling table includes a service map table (SMT) which provides IP address information and IP component level information for the service;

wherein the SMT includes a flag indicating whether or not the IP address information is an IPv4 address.

9. The apparatus of claim 8, wherein the SMT includes a descriptor which provides information about a start time, duration and title of a current program.

10. The apparatus of claim 8, wherein the RS frame decoder is configured to

perform error detection on the RS frame by calculating CRC data;

and

perform error correction decoding on data in the RS frame by RS decoding.