Transmission apparatus, reception apparatus, and data processing method

A data processing method for a transmission apparatus, the method comprising:

• processing, by processing circuitry of the transmission apparatus, a stream of a PLP (Physical Layer Pipe) included in a broadcast signal, the stream being constituted by packets each having a header and a payload;
• and
• causing, by the processing circuitry of the transmission apparatus, the header of each of the packets to carry, in predetermined bits of the header of the respective packet, identification information identifying the PLP,
• wherein (1) the stream is an Internet Protocol (IP) stream and the predetermined bits are included in an area stipulated by Robust Header Compression (RoHC) or (2) the stream is a transport stream (TS) and the predetermined bits are included in an area stipulated by MPEG2-TS.

A reception apparatus, comprising:

• demodulation circuitry configured to demodulate packets constituting a stream carried by a Physical Layer Pipe (PLP) that is included in a broadcast signal;
• and
• processing circuitry configured to process the packets demodulated by the demodulation circuitry to obtain identification information identifying the PLP, wherein
• the demodulation circuitry and the processing circuitry are connected with each other via a single interface or interfaces fewer than a number of PLPs included in the broadcast signal,
• the packets each have a header and a payload, and
• the header of each of the packets carries, in predetermined bits of the header of the respective packet, identification information identifying the PLP,
• wherein (1) the stream is an Internet Protocol (IP) stream and the predetermined bits are included in an area stipulated by Robust Header Compression (RoHC) or (2) the stream is a transport stream (TS) and the predetermined bits are included in an area stipulated by MPEG2-TS.

A data processing method for a reception apparatus, the method comprising:

• demodulating, by demodulation circuitry of the reception apparatus, packets constituting a stream carried by a Physical Layer Pipe (PLP) that is included in a broadcast signal;
• and
• processing, by processing circuitry of the reception apparatus, the packets demodulated by the demodulation circuitry to obtain identification information identifying the PLP, wherein
• the demodulation circuitry and the processing circuitry are connected with each other via a single interface or interfaces fewer than a number of PLPs included in the broadcast signal,
• the packets each have a header and a payload, and
• the header of each of the packets carries, in predetermined bits of the header of the respective packet, identification information identifying the PLP,
• wherein (1) the stream is an Internet Protocol (IP) stream and the predetermined bits are included in an area stipulated by Robust Header Compression (RoHC) or (2) the stream is a transport stream (TS) and the predetermined bits are included in an area stipulated by MPEG2-TS.