Data processing apparatus and data processing method

A data processing method in a data processing apparatus, the method comprising:

• generating a transmission frame to be transmitted as a broadcast signal based on a type length value (TLV) packet;
• adding, by circuitry of the data processing apparatus, identification information for identifying a transmission format of the transmission frame to the transmission frame, the identification information including a predefined value that identifies one of a plurality of different arrangements of the TLV packet within the transmission frame;
• and
• adding presence information indicating whether each of a plurality of types of information is included in the transmission frame, wherein
• the plurality of different arrangements includes a first arrangement in which the TLV packet is located across a plurality of transmission frames and a second arrangement in which the TLV packet is not located across the plurality of transmission frames, and
• the identification information and the presence information are indicated by different bits of a protocol subtype included in the transmission frame.

A data processing apparatus, comprising:

• processing circuitry configured to receive a transmission frame transmitted as a broadcast signal, wherein
• the transmission frame is generated based on a type length value (TLV) packet,
• the transmission frame includes (i) identification information for identifying a transmission format of the transmission frame and (ii) presence information indicating whether each of a plurality of types of information is included in the transmission frame, the identification information including a predefined value that identifies one of a plurality of different arrangements of the TLV packet within the transmission frame,
• the plurality of different arrangements includes a first arrangement in which the TLV packet is located across a plurality of transmission frames and a second arrangement in which the TLV packet is not located across the plurality of transmission frames, and
• the identification information and the presence information are indicated by different bits of a protocol subtype included in the transmission frame.

A data processing method to be used in a data processing apparatus, the method comprising:

• receiving, by circuitry of the data processing apparatus, a transmission frame transmitted as a broadcast signal, wherein
• the transmission frame is generated based on a type length value (TLV) packet,
• the transmission frame includes (i) identification information for identifying a transmission format of the transmission frame and (ii) presence information indicating whether each of a plurality of types of information is included in the transmission frame, the identification information including a predefined value that identifies one of a plurality of different arrangements of the TLV packet within the transmission frame,
• the plurality of different arrangements includes a first arrangement in which the TLV packet is located across a plurality of transmission frames and a second arrangement in which the TLV packet is not located across the plurality of transmission frames, and
• the identification information and the presence information are indicated by different bits of a protocol subtype included in the transmission frame.