Patent ID: 7844010
Filing Date: 2010-11-30
Classification: H04B,H04L,H04W

Abstract:
1. A method comprising: receiving from a first station at a second station at least two space-time coded signals in respective formed beams of a multi-beam antenna array associated with the first station, the beams having a signature code embedded in each respective space-time coded signal, the signature codes being orthogonal so that the second station separates and measures a channel impulse response corresponding to each space-time coded signal; measuring the channel impulse response for each space-time coded signal at the second station; determining, from the received space-time coded signals, a selected set of least attenuated signals and a remaining set of most attenuated signals at the second station; and sending an indicia of the selected set of least attenuated signals from the second station to the first station, wherein the indicia is for in part re-forming the formed beams.