Patent ID: 6512481
Filing Date: 2003-01-28
Classification: G01S,H04W

Abstract:
A communication system comprising:a first mobile transceiver having a first processor and a first directional antenna; a second transceiver having a second processor and a second antenna; a locator coupled to the first transceiver for determining the physical location of the first antenna relative to the second antenna; a communication link formed between the first and second transceivers, the link including a first wireless beam from the first antenna to the second antenna and a second wireless beam from the second antenna to the first antenna; a first beamformer in the first transceiver for shaping the first wireless beam to be directed toward the second antenna so as to reduce interference, the first beamformer having a first deterministic direction finder to compute an angle of arrival of the second wireless beam; the angle of arrival being used by a first steering circuit in the first beamformer to determine a first beam steering direction of a first antenna pattern directed toward the second antenna, and the first beamformer having a first nulling circuit that rejects beams outside the first beam steering direction to the second antenna; and a second beamformer in the second transceiver for shaping the second wireless beam to be directed toward the first antenna so as to reduce interference, the second beamformer having a deterministic direction finder to compute an angle of arrival of the first wireless beam, the angle of arrival being used by a second steering circuit in the second beamformer to determine a second beam steering direction of a second antenna pattern directed toward the first antenna, and the second beamformer having a second nulling circuit that rejects beams outside the second beam steering direction to the first antenna.