Patent ID: 9191138
Filing Date: 2015-11-17
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method, comprising: measuring, at a first time by a subscriber unit, first channel and interference information for a plurality of orthogonal frequency division multiple access (OFDMA) subcarriers based on at least a first pilot symbol received from a base station; providing, by the subscriber unit, first feedback of channel and interference information relating to a plurality of groups of clusters of subcarriers, each cluster of subcarriers of the plurality of groups of clusters of subcarriers including at least two subcarriers of the plurality of OFDMA subcarriers, the first feedback of channel and interference information being based on at least the measuring of the first channel and interference information for the plurality of OFDMA subcarriers based on the at least first pilot symbol; receiving, by the subscriber unit, a first avocation of at least one cluster of subcarriers from the plurality of groups of clusters of subcarriers after the providing of the first feedback of channel and interference information, the first allocation of the least one cluster of subcarriers being selected by the base station for use by the subscriber unit; measuring, at a second time by the subscriber unit, second channel and interference information for the plurality of OFDMA subcarriers based on at least a second pilot symbol received from the base station; providing, by the subscriber unit, second feedback of channel and interference information relating to the plurality of groups of clusters of subcarriers, the second feedback of channel and interference information being based on at least the measuring of the second channel and interference information for the plurality of OFDMA subcarriers based on the at least second pilot symbol, the providing of the second feedback of channel and interference information being in response to the subscriber unit receiving a request from the base station; and receiving, by the subscriber unit, a second allocation of at least another cluster of subcarriers from the plurality of groups of clusters of subcarriers after the providing of the second feedback of channel and interference information, the second allocation of the at least another cluster of subcarriers being selected by the base station for use by the subscriber unit.