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:
Jun. 15, 2010
Filed:
Nov. 10, 2005
Kris NG, Kanaa, CA;
Tricci SO, Kanata, CA;
Yusupha Touray, Ottawa, CA;
Donald Wade, Kanata, CA;
Hamid Mahmood, Kanata, CA;
Fayaz Kadri, Kanata, CA;
Kris Ng, Kanaa, CA;
Tricci So, Kanata, CA;
Yusupha Touray, Ottawa, CA;
Donald Wade, Kanata, CA;
Hamid Mahmood, Kanata, CA;
Fayaz Kadri, Kanata, CA;
Nortel Networks, St. Laurent, CA;
Abstract
System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.