Method and apparatus for measuring channel quality using a smart antenna in a wireless transmit/receive unit
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United States of America Patent
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Sep 25, 2007
Grant Date -
Aug 18, 2005
app pub date -
Dec 30, 2004
filing date -
Feb 6, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
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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