OFDMA with adaptive subcarrier-cluster configuration and selective loading

  • US 7,454,212 B2
  • Filed: 08/08/2005
  • Issued: 11/18/2008
  • Est. Priority Date: 12/15/2000
  • Status: Expired due to Fees
First Claim
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1. A method for subcarrier selection for a system employing orthogonal frequency division multiple access (OFDMA) comprising:

  • a subscriber unit measuring channel and interference information for a plurality of subcarriers based on pilot symbols received from a base station;

    the subscriber unit selecting a set of candidate subcarriers;

    the subscriber unit providing feedback information on the set of candidate subcarriers to the base station;

    the subscriber unit receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the subscriber unit; and

    the subscriber unit submitting updated feedback information, after being allocated the set of subcarriers to be allocated an updated set of subcarriers, and thereafter the subscriber unit receiving another indication of the updated set of subcarriers.

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