Patent ID: 8040865
Filing Date: 2011-10-18
Classification: H04B

Abstract:
1. A method of assigning precoding vectors in a mobile cellular network, wherein the method comprises the steps of: selecting, by a mobile station associated with the base station, from a code book comprising indexed precoding vectors, one or more indices of preferred precoding vectors and reporting the indices of the one or more preferred precoding vectors to the base station via an uplink channel; selecting, by the mobile station, from the code book one or more indices of preferred companion precoding vectors which are precoding vectors that can be used by the base station for other mobile stations served by the base station on the same time/frequency resource and reporting the one or more indices associated with the preferred companion precoding vectors to the base station via the uplink channel; and assigning, by the base station, for each mobile station associated with the base station a precoding vector based on the reported one or more indices of the preferred precoding vectors and based on the reported one or more indices of the preferred companion precoding vectors.