A network device simulation system has a device message emulator. The network processor captures all packets on a link of the network in real-time, to thereby capture communications transmitted via packet on the link. The controlling device controls the correcting device to correct the irradiation angle in accordance with the determined amount of tilt when the record information is recorded. In a period when the second light unit is lit, Y pieces of data corresponding to the illuminance of light entering the Y light detection circuits are generated. The mapped coded UCI is sent using a PUCCH resource on a first antenna.