Abstract: A method for determining the location of a remote transceiver in relation to a vehicle, the method including the steps of: transmitting at least two measuring signals to the remote transceiver, each of the measuring signals being transmitted from a different one of a plurality of n antennae positioned relative to the vehicle, where n denotes an integer?2; receiving an acknowledgement signal from the remote transmitter in response to each measuring signal, each acknowledgement signal including a received signal strength indication (RSSI) for a respective received measuring signal, the values of the received RSSIs together defining a data point in an RSSI domain; and determining a difference between the received value of a first RSSI and a defined threshold value for that first RSSI, wherein the sign of the difference indicates whether the remote transmitter is inside or outside a defined region i of or near the vehicle.

Abstract: A method for determining the location of a remote transceiver in relation to a vehicle, the method including the steps of: transmitting at least two measuring signals to the remote transceiver, each of the measuring signals being transmitted from a different one of a plurality of n antennae positioned relative to the vehicle, where n denotes an integer 2; receiving an acknowledgement signal from the remote transmitter in response to each measuring signal, each acknowledgement signal including a received signal strength indication (RSSI) for a respective received measuring signal, the values of the received RSSIs together defining a data point in an RSSI domain; and determining a difference between the received value of a first RSSI and a defined threshold value for that first RSSI, wherein the sign of the difference indicates whether the remote transmitter is inside or outside a defined region i of or near the vehicle.