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:
Oct. 10, 2006
Filed:
Dec. 20, 2002
Anjana Agarwal, Wheaton, IL (US);
John Matthew Gafrick, Naperville, IL (US);
Mark Alan Mccormick, Naperville, IL (US);
Kimberly Sue Tomasko-dean, LaGrange, IL (US);
Anjana Agarwal, Wheaton, IL (US);
John Matthew Gafrick, Naperville, IL (US);
Mark Alan McCormick, Naperville, IL (US);
Kimberly Sue Tomasko-Dean, LaGrange, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
When a subscriber record is moved from a first HLR to a second HLR that utilizes a different protocol, the wireless communication system sends two queries for location information for the mobile station, one to the first HLR and one to the second HLR, simultaneously. Two responses are received, one from each of the HLRs. The valid response is recorded in a separate table for future use. The invalid response is discarded. The next time a call comes in for the mobile station, the table is traversed to determine if the HLR has been updated for the mobile station. If so, the location request is sent only to the system in the table. If the table does not include information for the called mobile station, simultaneous queries are sent to the first and second HLRs.