Abstract: A wireless communication device is configured to transition between power states to reduce power usage. The wireless communication device includes a power source, a first transmitter, a second transmitter, and control circuitry. The control circuitry is configured to transfer data wirelessly to a requesting client device via the first transmitter during a first power state, and in response to a disconnection of the client device from the first transmitter, determine if the client device is connected to the second transmitter. The control circuitry is further configured to, in response to determining that the client device is connected to the second transmitter, remain in the first power state, and, in response to determining that the client device is disconnected from the second transmitter, enter a second power state that utilizes less power than the first power state.

Abstract: A method for secure wireless communication executed by at least one processor of a device. A registration certificate is transmitted to the device by a host, the registration certificate including a Long Term Device Key (LTDK) and being generated by a registration server in response to the registration of the host as authorized to connect to the device. In response to receiving a request for securing a Bluetooth connection between the device and the host, the device transmits the LTDK to the host. The device receives, from the host, a connection certificate including connection data for establishing the connection between the host and the device. The connection certificate is signed by a private Long Term Host Key (LTHK) of the host, where the LTHK of the host and the LTDK of the device form a cryptographic Long Term Key pair. The device validates the connection certificate using the LTDK of the device to determine whether the host is authorized to connect to the device.