Method of processing traffic information and digital broadcast system

A method of processing traffic information data in a digital broadcast receiver, the method comprising:

• receiving traffic information data and system information, wherein the traffic information data is included in broadcasting data, the broadcasting data being generated from reed solomon frame encoding the traffic information data, block processing the reed solomon frame encoded traffic information data, forming the block processed traffic information data into a group, packet formatting the group formed traffic information data, multiplexing the packet formatted traffic information data with main data, and post processing the multiplexed data in a transmitter, the group including known data in advance known to the receiver and a digital broadcast transmitter;
• demultiplexing the traffic information data and the system information;
• decoding the traffic information data using the system information, thereby extracting at least one of prediction information on a link travel time and/or prediction information on a link average speed, and location information corresponding to the prediction information;
• and
• providing a traffic information service to a user using the decoded traffic information data.

A digital broadcast receiver, comprising:

• a demodulator configured to demodulate traffic information data and system information, wherein the traffic information data is included in broadcasting data, the broadcasting data being generated from reed solomon frame encoding the traffic information data, block processing the reed solomon frame encoded traffic information data, forming the block processed traffic information data into a group, packet formatting the group formed traffic information data, multiplexing the packet formatted traffic information data with main data, and post processing the multiplexed data in a transmitter, the group including known data in advance known to the receiver and a digital broadcast transmitter;
• a data decoding unit configured to decode the demodulated traffic information data;
• a data storage configured to store the decoded traffic information data;
• and
• an application manager configured to provide a traffic information service to a user using the stored traffic information data by extracting at least one of prediction information on a link travel time and/or prediction information on a link average speed, and location information corresponding to the prediction information,
• wherein the demodulator comprises:
• an equalizer configured to channel-equalize the traffic information data based on the known data;
• a block decoder configured to perform soft decision decoding on the channel-equalized traffic information data;
• and
• a reed solomon frame decoder configured to perform an inverse process of a reed solomon frame encoder included in the transmitter.

A digital broadcast receiver, comprising:

• a tuner configured to receive broadcasting data having traffic information data and main data, the broadcasting data being generated from reed solomon frame encoding the traffic information data, block processing the reed solomon frame encoded traffic information data, forming the block processed traffic information data into a group, packet formatting the group formed traffic information data, multiplexing the packet formatted traffic information data with main data, and post processing the multiplexed data in a transmitter, the group including known data in advance known to the receiver and a digital broadcast transmitter;
• a demodulator configured to perform demodulating on the traffic information data based on the known data;
• and
• a decoder configured to perform decoding on the demodulated traffic information data,
• wherein the demodulator comprises:
• an equalizer configured to channel-equalize the traffic information data based on the known data;
• a block decoder configured to perform soft decision decoding on the channel-equalized traffic information data;
• and
• a reed solomon frame decoder configured to perform an inverse process of a reed solomon frame encoder included in the transmitter.

A method of processing digital broadcast data in a digital broadcast receiver, comprising:

• receiving broadcasting data having traffic information data and main data, the broadcasting data being generated from reed solomon frame encoding the traffic information data, block processing the reed solomon frame encoded traffic information data, forming the block processed traffic information data into a group, packet formatting the group formed traffic information data, multiplexing the packet formatted traffic information data with main data, and post processing the multiplexed data in a transmitter, the group including known data in advance known to the receiver and a digital broadcast transmitter;
• performing demodulating on the traffic information data based on the known data;
• and
• performing decoding on the demodulated traffic information data,
• wherein the demodulator comprises:
• an equalizer configured to channel-equalize the traffic information data based on the known data;
• a block decoder configured to perform soft decision decoding on the channel-equalized traffic information data;
• and
• a reed solomon frame decoder configured to perform an inverse process of a reed solomon frame encoder included in the transmitter.