Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2006-08-15
2006-08-15
Pham, Chi (Department: 2666)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S477000
Reexamination Certificate
active
07092405
ABSTRACT:
A system and method for vertical handoff between different types of wireless networks. A network allocation vector of a first wireless network is sampled for a period of time. The network allocation vector may include a transmission time advertised by a sender in the first wireless network. A network allocation vector occupation is calculated. The calculation of the network allocation vector may include calculating a ratio of an amount of time that the network allocation vector is busy during the time period to a total amount of time during the time period. A wireless network quality of service measure is calculated as a function of the network allocation vector occupation. A vertical handoff may be initiated from a second wireless network to the first wireless network based at least in part on the calculated wireless network quality of service measure.
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Guo Zihua
Yao Richard
Zhang Qian
Zhu Wenwu
Abelson Ronald
Microsoft Corporation
Pham Chi
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