The method defined in claim 8 wherein the additional information comprises traffic load information on each cluster of subcarriers.

The method defined in claim 1 wherein the indication of subcarriers is received via a downlink control channel.

The apparatus defined in claim 18 wherein the indication of subcarriers is received via a downlink control channel between the base station and the at least one subscriber unit.

A method for subcarrier selection for a system employing orthogonal frequency division multiple access (OFDMA) comprising: a subscriber measuring channel and interference information for a plurality of subcarriers based on pilot symbols received from a base station; the subscriber selecting a set of candidate subcarriers; the subscriber providing feedback information on the set of candidate subcarriers to the base station; the subscriber sending an indication of coding and modulation rates that the subscriber desires to employ for each cluster; and the subscriber receiving an indication of subcarriers of the set of subcarriers selected by the base station for use by the subscriber. view more