Patent ID: 6832092
Filing Date: 2004-12-14
Classification: H04W

Abstract:
In a vehicle dispatch system having a dispatch center and a plurality of wireless communication devices, a method for communication between the dispatch center and the plurality of wireless communication devices comprising:receiving a request for dispatch including an assignment location; generating an assignment message including a location parameter, wherein the location parameter corresponds to the assignment location; and sending an assignment message including a location parameter from the dispatch center to the plurality of wireless communication devices, wherein the assignment message is a wireless message transmitted from the dispatch center to the wireless communication device over a radio frequency channel, and further wherein each wireless communication device having a current location: receives the assignment message including the location parameter from the dispatch center, compares the location parameter to the current location of the wireless communication device, processes the assignment message when the location parameter corresponds to the current location of the wireless communication device, and automatically deletes the assignment message when the location parameter does not correspond to the current location of the wireless communication device.