METHOD AND APPARATUS FOR PROVIDING EFFICIENT PRECODING FEEDBACK IN A MIMO WIRELESS COMMUNICATION SYSTEM

摘要

Precoding feedback scheme based on Jacobi rotations to generate the feedb ack in the uplink. For a wireless communication system including a transmitt er and a receiver. The system may use either a single codeword (SOW) or a do uble codeword (DCW). The precoding scheme is based on transmit beamforming ( TxBF). Differential feedback is considered, with periodic non-differential f eedback to avoid error accumulation or propagation due to differential proce ssing.