Relay apparatus and relay method

1 . A relay device that performs communication while moving, the relay device comprising:

a receiver configured to receive a signal from a transmission terminal;

one or more processors configured to perform as:

a capacity specifying unit configured to specify a channel capacity related to wireless communication with a base station; and

a data generation unit configured to generate waveform data representing the received signal such that a data size of the waveform data increases as the channel capacity increases; and

a transmitter configured to transmit the waveform data to the base station.

2 . The relay device according to claim 1 , wherein the one or more processors are further configured to perform as:

a spectrum conversion unit configured to convert the signal received from the transmission terminal into a frequency spectrum, wherein

the data generation unit is configured to generate the waveform data by sampling the frequency spectrum such that a sample size of the frequency spectrum increases as the channel capacity increases.

3 . The relay device according to claim 2 , wherein the data generation unit is configured to widen a sampling target frequency band in the frequency spectrum as the channel capacity increases.

4 . The relay device according to claim 2 , wherein the data generation unit is configured to narrow a sampling interval as the channel capacity increases.

5 . A relay method comprising:

receiving a signal from a transmission terminal by a relay device configured to perform communication while moving;

specifying a channel capacity related to wireless communication with a base station by the relay device;

generating, by the relay device, waveform data representing the received signal such that a data size of the waveform data increases as the channel capacity increases; and

transmitting the waveform data to the base station by the relay device.