Patent ID: 9615374
Date: 2017-04-04
CPC Classifications: H04B,H04W

Claim:
1. A method in a communication network including a first communication device and a second communication device, wherein the first communication device includes multiple antennas and is configured to implement receive beamforming using the multiple antennas, the method comprising: receiving, at the first communication device, a message from the second communication device, wherein the message indicates a request to make a plurality of directional channel quality measurements using receive beamforming; making, at the first communication device, a plurality of directional channel quality measurements regarding a quality of a communication channel between the first communication device and the second communication device, wherein each directional channel quality measurement is made by the first communication device i) in a different one of a plurality of directions from the standpoint of the first communication device by applying a respective different receive beamforming vector and ii) while the first communication device is not receiving a signal that is a) from the second communication device and b) intended for the first communication device; determining, at the first communication device, a direction of directional interference using the plurality of directional measurements; separate from making the plurality of directional channel quality measurements, performing, at the first communication device, a beamforming training procedure with the second communication device; and selecting, at the first communication device, a beamforming vector to use when communicating with the second communication device based on i) the determined direction of the directional interference, and ii) results of the beamforming training procedure.