Apparatus, Method and Computer Program Product Providing Feedback for Closed-Loop Wideband MIMO-OFDM System

摘要

In one exemplary aspect thereof the embodiments of this invention provide an apparatus that includes a wireless receiver configurable to receive resource units; a wireless transmitter configurable to transmit feedback information to a source of the received resource units; and a channel estimator and feedback generator coupled to the wireless receiver and to the wireless transmitter. The channel estimator and feedback generator is configurable to determine a weight for each of a first resource unit and a second resource unit that are received by the receiver spaced apart at least in frequency, to determine a weight for at least some of a plurality of resource units that are intermediate at least in frequency to the first and the second resource units, and to send feedback via the transmitter. The feedback includes an indication of the determined weight for the first and the second resource units using X bits for representing each of the indications of the determined weights, and further includes an indication of weights for each of the plurality of resource units using Y bits, where YX. The indication of the weights for each of the plurality of resource units specifies for use the transmitted indication of the determined weight of either the first resource unit or the second resource unit. The apparatus may be embodied in a user equipment operable in aMEVIO-type wireless communication system.