Clientless Mobile Subscribers with Seamless Roaming Over Scalable Wide Area Wireless Networks
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United States of America Patent
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Issued Date -
Jan 5, 2012
app pub date -
Sep 13, 2011
filing date -
Nov 12, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
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.
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