Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method for transmitting broadcast signal and method for receiving broadcast signal

A method of processing transmission of a broadcast signal, the method comprising:

• generating broadcast data for one or more broadcast services;
• generating first level signaling information comprising information for describing attribute for the one or more broadcast services;
• generating second level signaling information comprising information for listing the one or more broadcast services;
• generating a broadcast signal comprising the broadcast data, the first level signaling information, and the second level signaling information;
• and
• wherein:
• the second level signaling information generates a list of the broadcast service for supporting rapid channel scan and comprising a channel name and a channel number;
• the second level signaling comprises bootstrap information for searching for the first level signaling information on the broadcast service;
• and
• the second level signaling information comprises version information that is changed when data included in the second level signaling information is changed.

An apparatus for processing transmission of a broadcast signal, the apparatus comprising:

• a data encoder configured to generate broadcast data for one or more broadcast services;
• a first level signaling encoder configured to generate first level signaling information comprising information for describing attribute for the one or more broadcast services;
• a second level signaling encoder configured to generate second level signaling information comprising information for listing the one or more broadcast services;
• a processor configured to generate link layer packets comprising the encoded broadcast data, the first level signaling information, and the second level signaling information;
• and
• a broadcast signal generator configured to generate broadcast signal comprising the generated link layer packets,
• wherein:
• the second level signaling information generates a list of the broadcast service for supporting rapid channel scan and comprising a channel name and a channel number;
• the second level signaling comprises bootstrap information for searching for the first level signaling information on the broadcast service;
• and
• the second level signaling information comprises version information that is changed when data included in the second level signaling information is changed.