Communication apparatus, communication system, and communication method

A communication apparatus comprising:

• a plurality of transmitters-receivers;
• and
• a divider configured to divide a frame into divided frames, wherein
• when the transmitters-receivers receive a signal-faulty signal, the transmitters-receivers transmit the divided frames through a path through which the signal-faulty signal is able to be received.

A communication apparatus comprising:

• a divider configured to divide a frame into divided frames;
• a transmitter-receiver configured to transmit the divided frames and receive divided frames transmitted through a plurality of paths, the divided frames being obtained by dividing a frame;
• and
• a coupler configured to couple the received divided frames, wherein
• when the coupling of the received divided frames has failed in the coupler, the transmitter-receiver transmits a signal-faulty signal indicating a transmission fault.

A communication system configured to perform communication through a plurality of paths, the communication system comprising:

• a first communication apparatus configured to divide a frame and transmit divided frames through the plurality of paths;
• and
• a second communication apparatus configured to receive the divided frames through the plurality of paths and couple the received frames, wherein
• when the coupling of the frames has failed, the second communication apparatus transmits a signal-faulty signal indicating a transmission fault to the first communication apparatus.

A communication method in which first and second communication apparatuses perform communication through a plurality of paths, the communication method comprising:

• a divided frame transmission step of, in the first communication apparatus, dividing a frame and transmitting divided frames through respective paths;
• a coupling step of, in the second communication apparatus, coupling frames received through the plurality of paths;
• and
• an SF signal transmission step of, in the second communication apparatus, transmitting a signal-faulty signal indicating a transmission fault to the first communication apparatus when the coupling of the frames has failed.