Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-02-23
2011-12-13
Patel, Ajit (Department: 2617)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S516000, C455S509000, C370S343000, C370S310000, C370S345000, C370S341000, C370S469000
Reexamination Certificate
active
08078208
ABSTRACT:
An invention is disclosed whereby a wireless network node, equipped with two or more radio transceivers statically tuned to non-interfering frequency channels, can make decisions regarding which channel to use when communicating with a neighboring wireless node. A multi-radio unification protocol implemented in a wireless node coordinates the use of multiple wireless network interface cards and provides a virtual layer that hides the multiple physical network interfaces from higher layers of a node's network protocol stack. The invention is applicable to wireless networks generally, including those in which some nodes do not have multiple radios or do not recognize the multi-radio unification protocol. The invention makes possible simultaneous transmissions using available channels, thereby reducing interference and delay while increasing the overall capacity of the network.
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Adya Atul
Bahl Paramvir
Padhye Jitendra D.
Wolman Alastair
Zhou Lidong
Koehler Steven M.
Microsoft Corporation
Nguyen Khai M
Patel Ajit
Westman Champlin & Kelly P.A.
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