The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Jul. 23, 2007
Hans Christopher Sowa, Schaumburg, IL (US);
Daniel J. Mcdonald, Cary, IL (US);
David J. Chater-lea, Crowthorne, GB;
Scott James Pappas, Lake Zurich, IL (US);
Jason Johur, Maidenhead, GB;
Dennis Newkirk, West Chicago, IL (US);
Randy Kremske, Woodstock, IL (US);
Walter F. Anderson, Algonquin, IL (US);
Glen B. Walton, Tadley, GB;
Hans Christopher Sowa, Schaumburg, IL (US);
Daniel J. McDonald, Cary, IL (US);
David J. Chater-Lea, Crowthorne, GB;
Scott James Pappas, Lake Zurich, IL (US);
Jason Johur, Maidenhead, GB;
Dennis Newkirk, West Chicago, IL (US);
Randy Kremske, Woodstock, IL (US);
Walter F. Anderson, Algonquin, IL (US);
Glen B. Walton, Tadley, GB;
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A plurality of encryption keys is generated, and each encryption key is associated with one geographical area of a plurality of geographical areas. Each encryption key is forwarded to one or more base stations in the geographical area associated with the encryption key. At least one of the plurality of geographical areas that is adjacent to a first geographical area is determined, yielding one or more adjacent geographical areas, and an encryption key for at least one of the one or more adjacent geographical areas is forwarded to at least one base station covering the first geographical area.