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:
Mar. 25, 2003
Filed:
Aug. 19, 1999
Wen-Kai Yen, Alpharetta, GA (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A wireless terminal dynamically maintains location dependent operating parameters while operating in low power-consuming sleep mode. The wireless terminal wakes up periodically to determine its current location. If the current location is within a predetermined distance from a previously stored location, then the wireless terminal stores the previously stored location, along with its associated location dependent operating parameter, in a predetermined memory location within the wireless terminal. If the current location is not within a predetermined distance from a previously stored location, then the wireless terminal generates a new location dependent operating parameter for its current location and stores the current location and new location dependent operating parameter in the predetermined memory location. In various embodiments, the location dependent operating parameter may be, for example, a digital control channel or a mobile switching center identification. In an embodiment in which the location dependent operating parameter is a mobile switching center identification, the wireless terminal may register with an identified mobile switching center when the predetermined memory location is updated.