Reception apparatus, reception method, transmission apparatus, and transmission method for indicating presence or absence of signaling information in a payload of a packet

A reception method for a reception apparatus, comprising:

• receiving, by a receiver, digital broadcasting signals and carrying out orthogonal frequency division multiplexing (OFDM) demodulation on the digital broadcasting signals to obtain a physical layer frame;
• and
• processing, by at least one processor, the physical layer frame to acquire first signaling information arranged in a preamble of the physical layer frame, wherein
• the first signaling information includes plural flags, each corresponding to a physical layer pipe of plural physical layer pipes, each of the plural flags representing presence or absence of second signaling information required for selecting a service arranged in the respective physical layer pipe,
• the physical layer frame includes a bootstrap preceding the preamble,
• the first signaling information is layer 1 (L1) signaling information transmitted in L1, and
• the second signaling information is received in a packet of a layer higher than the layer 1, the packet including a header.

A transmission apparatus, comprising:

• at least one processor configured to
• generate a physical layer frame including first signaling information arranged in a preamble of the physical layer frame, and
• perform orthogonal frequency division multiplexing (OFDM) modulation on the physical layer frame;
• and
• a transmitter configured to transmit the OFDM modulated physical layer frame in digital broadcasting signals, wherein
• the first signaling information includes plural flags, each corresponding to a physical layer pipe of plural physical layer pipes, each of the plural flags representing presence or absence of second signaling information required for selecting a service arranged in the respective physical layer pipe,
• the physical layer frame includes a bootstrap preceding the preamble,
• the first signaling information is layer 1 (L1) signaling information transmitted in L1, and
• the second signaling information is transmitted in a packet of a layer higher than the layer 1, the packet including a header.

A transmission method for a transmission apparatus, comprising:

• generating, by at least one processor, a physical layer frame including first signaling information arranged in a preamble of the physical layer frame;
• performing orthogonal frequency division multiplexing (OFDM) modulation on the physical layer frame;
• and
• transmitting, by a transmitter, the OFDM modulated physical layer frame in digital broadcasting signals, wherein
• the first signaling information includes plural flags, each corresponding to a physical layer pipe of plural physical layer pipes, each of the plural flags representing presence or absence of second signaling information required for selecting a service arranged in the respective physical layer pipe,
• the physical layer frame includes a bootstrap preceding the preamble,
• the first signaling information is layer 1 (L1) signaling information transmitted in L1, and
• the second signaling information is transmitted in a packet of a layer higher than the layer 1, the packet including a header.