Handover in a wireless local area network (WLAN)

Details Handover in a wireless local area network (WLAN) Handover in a wireless local area network (WLAN)

2007-01-16

2007-01-16

Kincaid, Lester G. (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S452200

Reexamination Certificate

active

10931112

ABSTRACT:
In triggering a handoff by a wireless transmit/receive unit (WTRU) from a current basic service set (BSS) in a wireless local area network (WLAN), the following are performed. A highest class of traffic service and quality of service (QoS) is determined for the highest class from a basic service set (BSS) beacon. Handoff is terminated and communication is retained with a current BSS when the signal to noise ratio (SNR) or received signal strength (RSS) is greater than a high threshold of the highest class. Other criteria is evaluated to determine whether a handoff is desired when the SNR or RSS is less than the high threshold.

REFERENCES:
patent: 5917811 (1999-06-01), Weaver et al.
patent: 6594494 (2003-07-01), Kakehi
patent: 2002/0068569 (2002-06-01), Chen et al.
patent: 2002/0168980 (2002-11-01), Gwon et al.

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