Patent ID: 11889376
Assignee: LG INNOTEK CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC B  H | IPC H

Claim 0:
1. A method of determining a location of a device by switching between multiple antennas, the method comprising:
in response to a vehicle entering a security mode, connecting a second antenna having a first coverage zone and transmitting an advertising signal;
in response to detecting the device, establishing a connection between the second antenna and a first antenna of the device and requesting the device to transmit received signal strength indicator (RSSI) data;
performing a first determination operation of determining whether the device enters a target proximity zone or a target zone based on the RSSI data received through the second antenna;
in response to determining that the device enters the target proximity zone or the target zone in the first determination operation, connecting a third antenna having a narrower range than the first coverage zone, and disconnecting the second antenna;
performing a second determination operation of determining whether the device enters the target zone based on the RSSI data received through the third antenna; and
in response to determining that the device enters the target zone in the second determination operation, finally determining that the device enters the target zone.