Citrix Systems, Inc.
System for determining distance between fixed and mobile endpoints and related methods

Abstract:

A system may include a fixed communications device and a mobile communications device each configured to wirelessly communicate at a first frequency and also at a second frequency higher than the first frequency. The fixed communications device and the mobile communications device may cooperate to establish a wireless link via the second frequency, exchange a location signal via the first frequency responsive to establishing the wireless link, communicate via the wireless link using the second frequency and determine respective transmit and receive delays associated with transmission and reception of the location signal via the first frequency, and determine a distance between the fixed communications device and the mobile communications device based upon a time of arrival of the location signal, the transmit and receive delays, and a signal speed associated with the second frequency.