Patent ID: 9467998
Filing Date: 2016-10-11
CPC Classification: H04B,H04W

Claim Text:
1. A method for operating a first communications controller to control a first device so as to minimize interference in a spatial domain, the method comprising: receiving, by the first communications controller, channel information for a communications channel between the first communication controller and a second device controlled by a second communications controller, wherein the channel information carries a covariance matrix providing directional information of the second communication controller and the second device; determining, by the first communications controller, a precoding constraint in accordance with the covariance matrix, wherein the first communications controller adjusts the precoding constraint in each time-frequency resource to reduce interference in a spatial domain with other devices controlled by the second communications controller; transmitting, by the first communications controller, coordinated transmission information about the precoding constraint to the second communication controller; and transmitting, by the first communications controller, to the first device in accordance with the precoding constraint.