Patent ID: 8843091

Claim:
A radio communication system comprising: a receiver that is configured to receive a first radio wave sent according to a remote keyless entry system and a second radio wave sent according to a tire pressure monitoring system; and a reception mode switching unit that sets a reception mode of the receiver to a first reception mode, in which the first radio wave is received, when an ignition switch of a vehicle is off, and sets the reception mode to a second reception mode, in which the second radio wave is received, when the ignition switch of the vehicle is on, wherein: the receiver receives the first radio wave or the second radio wave depending upon whether the reception mode is set to the first reception mode or the second reception mode by the reception mode switching unit; and when the reception mode switching unit receives a first request signal to set the reception mode to the first reception mode while the ignition switch of the vehicle is on, the reception mode switching unit sets the reception mode to the first reception mode.