Abstract: This application provides a Bluetooth random address generation method and a related electronic device. The method includes: the Bluetooth Host generates an identity resolving key (IRK); the Bluetooth Host sends the IRK to the Bluetooth module when the electronic device meets a first condition, where the first condition is a condition for triggering the electronic device to reduce power consumption; the Bluetooth module generates a resolvable private address (RPA) based on the IRK, and periodically updates the RPA based on the IRK; the Bluetooth Host sends an RPA request to the Bluetooth module when the Bluetooth Host needs to execute a Bluetooth service; the Bluetooth module sends a latest updated RPA to the Bluetooth Host; and the Bluetooth Host executes the Bluetooth service based on the latest updated RPA. Therefore reducing the power consumption of the AP chip, and extending the standby time of electronic device.

Abstract: Embodiments of this application provide a Bluetooth connection method, a system, and an electronic device. In the method, when a communication connection between an electronic device and a vehicle head unit is disconnected, the electronic device starts to scan a Bluetooth advertising signal. When a user carrying the electronic device is close to the vehicle head unit, the electronic device may obtain, through scanning, a Bluetooth advertising signal sent by the vehicle head unit. When obtaining, through scanning, the Bluetooth advertising signal sent by the vehicle head unit, the electronic device may start a vehicle manufacturer application when the vehicle manufacturer application is cleared by a system. The electronic device may reconnect to the vehicle head unit through Bluetooth by using the vehicle manufacturer application and a Bluetooth chip. Embodiments of this application can improve convenience of unlocking in a scenario in which a vehicle is insensibly unlocked.