Patent ID: 8571127
Filing Date: 2013-10-29
Classification: H04B,H04L

Abstract:
1. A wireless system comprising: a transmitter with a baseband processor responsive to groups of transmitter antenna arrays for communicating over directional beams; and a receiver with a baseband processor responsive to groups of receiver antenna arrays for communicating with said transmitter over said directional beams, said receiver including both a rank adaptation providing a transmit mode feedback to said transmitter and a blind beamforming providing a transmit beamformer index feedback to said transmitter and receiver groups of antenna arrays; wherein said blind beamforming comprises generating enhanced perturbation vectors, an iteration to generate new beamformers responsive to said perturbation vectors and a current beam beamformer, and determining a received power for all combination of transmitter and receiver antenna beamformers responsive to said new beamformers.