Telecommunications – Receiver or analog modulated signal frequency converter – With wave collector
Reexamination Certificate
2005-11-15
2005-11-15
Chin, Vivian (Department: 2682)
Telecommunications
Receiver or analog modulated signal frequency converter
With wave collector
C455S063100, C455S063400, C455S069000, C455S114200, C455S067110, C455S067160, C455S129000
Reexamination Certificate
active
06965762
ABSTRACT:
A composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The second communication device determines the best receive weight vector for the its antennas, and from that vector, derives a suitable transmit weight vector for transmission on the plurality of antennas back to the first communication device. Several techniques are provided to determine the optimum transmit weight vector and receive weight vector for communication between the first and second communication devices so that there is effectively joint or composite beamforming between the communication devices.
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Sugar Gary L.
Tesfai Yohannes
Vaidyanathan Chandra
Chin Vivian
Persino Raymond B.
Volpe and Koenig P.C.
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