Multiplex communications – Quadruplex – Duplex diplex
Reexamination Certificate
2008-01-04
2010-11-23
Lee, Andrew (Department: 2472)
Multiplex communications
Quadruplex
Duplex diplex
C370S279000, C370S296000
Reexamination Certificate
active
07839805
ABSTRACT:
A method and system for using half-duplex base stations and half-duplex nodes in a Frequency Division Duplexing region to provide wireless connectivity between the half-duplex base stations and customers in multiple sectors of a cell. The method and system can use two physical channels to form two logical channels. Each logical channel shares both physical channels during alternating frames of time. The half-duplex nodes can include a millimeter-wave band frequency synthesizer configured to transmit and receive on different channels to and from the half-duplex base station. Re-use patterns of the physical channels are used for deployment of half-duplex base stations and half-duplex nodes in the FDD region to minimize co-channel interference and interference due to uncorrelated rain fade. Additional methods and systems utilize full-duplex base stations and smart antenna to communicate with the half-duplex nodes.
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Klein Israel Jay
Stanwood Kenneth L.
Lee Andrew
Schwabe Williamson & Wyatt P.C.
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