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:
Jul. 02, 1996
Filed:
Mar. 06, 1995
Hamid Ahmadi, Somers, NY (US);
Frederic J Bauchot, Saint-Jeannet, FR;
Roselyne Bonnet, Saint Paul, FR;
Ilan Kessler, Haifa, IL;
Arvind Krishna, Briarcliff Manor, NY (US);
Fabien P Lanne, Valbonne, FR;
Mahmoud Naghshineh, Fishkill, NY (US);
Catherine Solar, Saint Laurent du Var, FR;
Michelle M Wetterwald, Cagnes Sur Mer, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A communications network having a number of routers, a number of base stations and a number of mobile units maintains communications with the mobile units by assigning a unique address known to the routing entities of the network to each mobile unit. By including the mobile units unique address in topology updates of the network, the location of the mobile unit at any time is made known to all routers of the network. That is, once a mobile unit moves into a domain of a new access point and establishes a new link with the new access point, it uses the topology update mechanism of the network to make its new location known to all routers. Once a router of the network receives topology update information specific to the mobile unit's new location, it updates its routing table such that packets destined to the mobile unit are routed in a path which terminates at the mobile unit and contains its new access point.