Method for performing a seamless handoff in a communication...

Details Method for performing a seamless handoff in a communication... Method for performing a seamless handoff in a communication...

2006-06-06

2006-06-06

Chin, Wellington (Department: 2664)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S310000, C370S312000, C370S318000, C370S331000, C370S332000, C370S333000, C455S421000, C455S422100, C455S433000, C455S436000, C455S437000

Reexamination Certificate

active

07058030

ABSTRACT:
Disclosed is a method for performing handoff in a communication system of access points and a mobile station, where the mobile station is associated with a first access point. The first access point receives a first transmission at a first signal quality from the mobile station and receives a second transmission that indicates a second signal quality at which a second access point is receiving transmissions from the mobile station. The first access point compares the first signal quality with the second signal quality and when the second signal quality is greater than the first signal quality, the first access point signals the second access point to initiate a handoff with the mobile station. The second access point responds by sending a disassociation message to the mobile station to disassociate with the first access point, wherein the disassociation message is addressed as if it originated from the first access point.

REFERENCES:
patent: 5175867 (1992-12-01), Wejke et al.
patent: 6360264 (2002-03-01), Rom
patent: 2002/0085719 (2002-07-01), Crosbie
patent: 2003/0190916 (2003-10-01), Celedon et al.

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