Jonathan B Walker

US Patent:

7184763, Feb 27, 2007

Filed:

Jan 21, 2003

Appl. No.:

10/347777

Inventors:

Aloke Roy - Gaithersburg MD, US
Jonathan Walker - Crofton MD, US

Assignee:

Honeywell International, Inc. - Morristown NJ

International Classification:

H04Q 7/20

US Classification:

455431, 455441, 455513, 455525

Abstract:

An apparatus, method and computer program for initiating and maintaining a virtual connection between a mobile radio and a ground station, including receiving a plurality of ground station radio signals from a mobile radio; accumulating over a time period signal quality information relative to each of the ground station radio signals; determining a signal quality parameter trend for each of the ground station radio signals as a function of the accumulated signal quality information; deciding to switch a current virtual connection between the mobile radio and a first ground station to a virtual connection between the mobile radio and a different second ground station as a function of comparing the signal quality parameter to a pre-selected minimum acceptable threshold signal quality parameter; and switching the virtual connection of the mobile radio from the first ground station to the second ground station.