WIRELESS RECEPTION APPARATUS, WIRELESS TRANSMISSION APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELESS RECEPTION METHOD, WIRELESS TRANSMISSION METHOD, AND WIRELESS COMMUNICATION METHOD

摘要

The present invention relates to an apparatus and a method capable of achieving closed loop MIMO communications, using reduced feedback, without a loss in system performance. In one embodiment of the present invention, a phase-rotated right handed singular vector matrix is derived from an estimation result of a MIMO channel (steps 231 and 232).Then, a coefficient are fed back (step 235). The coefficient is associated with an element in the phase-rotated right-handed singular vector matrix.