| 摘要 |
<p>The present invention allows a communication terminal to monitor signal metrics of received signals for a defined location and create a signal signature for the defined location. The defined location may be a position, an area about a position, or a defined area. After the signal signature for the defined location is created, the communication terminal will compare currently monitored signal metrics for received signals with the signal signature during normal operation. Upon returning to the location, the communication terminal will monitor signal metrics for signals being received at the location and detect when the current signal metrics correspond to the signal signature for the location. The correspondence of the new signal metrics with the signal signature indicates that the communication terminal is at a defined location.</p> |
