A first information processing device comprising: a communication unit configured to transmit a device discovery request signal for performing direct inter-device wireless communication; and a control unit configured to change a detection threshold for detecting a wireless communication signal, characterized in that the device discovery request signal is transmitted indirectly via an access point , and in that the control unit is configured to control the transmission of the device discovery request signal, including, in the device discovery request signal, at least one of information related to reception power used when the control unit obtains a second threshold, information that specifies a type of a physical layer, PHY, preamble to be used in a device discovery response signal, information related to a time band to wait for detection of the device discovery response signal after transmission of the device discovery request signal, and information that specifies use of a signal of not performing reception confirmation when a second information processing device transmits the device discovery response signal, set a first threshold, as the detection threshold, when the control unit waits for detection of a wireless communication signal transmitted from the access point , and set the second threshold, as the detection threshold, different from the first threshold at a defined timing after transmission of the device discovery request signal for receiving directly the device discovery response signal from the second information processing device capable of performing direct wireless communication with the first information processing device. a communication unit configured to transmit a device discovery request signal for performing direct inter-device wireless communication; and a control unit configured to change a detection threshold for detecting a wireless communication signal, characterized in that the device discovery request signal is transmitted indirectly via an access point , and in that the control unit is configured to control the transmission of the device discovery request signal, including, in the device discovery request signal, at least one of information related to reception power used when the control unit obtains a second threshold, information that specifies a type of a physical layer, PHY, preamble to be used in a device discovery response signal, information related to a time band to wait for detection of the device discovery response signal after transmission of the device discovery request signal, and information that specifies use of a signal of not performing reception confirmation when a second information processing device transmits the device discovery response signal, set a first threshold, as the detection threshold, when the control unit waits for detection of a wireless communication signal transmitted from the access point , and set the second threshold, as the detection threshold, different from the first threshold at a defined timing after transmission of the device discovery request signal for receiving directly the device discovery response signal from the second information processing device capable of performing direct wireless communication with the first information processing device. <EOS>