A method of transmitting or receiving with constrained feedback information. A transmitter transmits a plurality of transmit signals from at least one transmit antenna. The plurality of transmit signals are based on one or more input signals, one or more power gains, and one or more beamformer matrices....http://www.google.com/patents/US7761059?utm_source=gb-gplus-sharePatent US7761059 - Method of transmitting or receiving with constrained feedback information
