Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2007-09-25
2007-09-25
Trost, William (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S063400, C455S101000, C455S443000, C455S525000, C455S575700, C370S331000, C370S332000, C342S081000, C342S367000, C342S368000, C343S757000, C343S824000
Reexamination Certificate
active
11026296
ABSTRACT:
A method and apparatus for measuring a channel quality in wireless transmit/receive units (WTRUs) which are equipped with a subscriber based smart antenna. The WTRUs are equipped with a smart antenna so that the WTRU generates a plurality of directional beams and, optionally, an omni-directional beam. A dwell time is provided in a measurement period to switch a beam from an active beam to a non-active beam. The active beam is one of the plurality of directional beams or, optionally, the omni-directional beam, for communication with one or more serving base station(s). A beam is switched to a non-active beam at the initiation of the dwell time. Signals are received through the switched non-active beam, and samples of the received signals are generated. The samples are stored in a memory. Channel quality is measured using the samples, whereby the dwell time to measure the channel quality is minimized.
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Stern-Berkowitz Janet
Zangi Kambiz Casey
Ewart James D.
InterDigital Technology Corporation
Trost William
Volpe and Koenig P.C.
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