Context block leasing for fast handoffs

Details Context block leasing for fast handoffs Context block leasing for fast handoffs

Filed on

2006-01-24

Date issued

2006-01-24

Examiner

Ferguson, Keith (Department: 2683)

Patent Class

Telecommunications

SubClass

Radiotelephone system

SubSubClass

Zoned or cellular telephone system

Other Related Categories

C455S437000, C455S438000, C455S443000, C455S422100, C455S426100, C455S439000, C370S331000, C370S332000, C370S335000

Type

Reexamination Certificate

Status

active

Patent number

06990343

Description

ABSTRACT:
The roaming of a wireless device115extends the effective range of a wireless network100by passing a device115between access points as the device leaves the coverage area of one and enters another. Roaming can be slow and problematic if an old link is disconnected prior to establishing a new link, especially if authentication and security is required. The present invention speeds up roaming by using existing mechanisms to initiate a new link with a new access point120prior to disconnecting the old link with an old access point110.

REFERENCES:
patent: 6757520 (2004-06-01), Attar et al.
patent: 2002/0085719 (2002-07-01), Crosbie
patent: 2002/0174335 (2002-11-01), Zhang et al.

Affiliated with

Also associated with

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