OFDMA with adaptive subcarrier-cluster configuration and selective loading
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United States of America Patent
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Nov 18, 2008
Grant Date -
Apr 20, 2006
app pub date -
Aug 8, 2005
filing date -
Dec 15, 2000
priority date (Note) -
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Abstract
A method and apparatus for subcarrier selection for systems is described. In one embodiment, the system employs orthogonal frequency division multiple access (OFDMA). In one embodiment, a method for subcarrier selection comprises each of multiple subscribers measuring channel and interference information for subcarriers based on pilot symbols received from a base station, at least one of subscribers selecting a set of candidate subcarriers, providing feedback information on the set of candidate subcarriers to the base station, and the one subscriber receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the one subscriber.
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