[Object] To enable a frequency band shared between wireless communication of a cellular system and wireless communication conforming to a wireless LAN standard to be more appropriately used in the cellular system.
[Solution] There is provided a device including an acquisition unit configured to acquire information indicating a terminal device which is a device candidate for performing wireless communication of a cellular system using a frequency band shared between the wireless communication of the cellular system and wireless communication conforming to a wireless local area network (LAN) standard, and a control unit configured to notify the terminal device that the terminal device is the device candidate.