US Patent 7142830 Adaptive transceiver system
Patent 7142830 was granted and assigned to Nokia on November, 2006 by the United States Patent and Trademark Office.
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A method for forming signals at a transceiver having at least two transmit and receive chains, the method comprising the steps of: (a) determining the phase difference and relative amplitude of signals from a set comprising a plurality of mobile stations as received through the receive chains, (b) receiving from each of at least one of the mobile stations messages indicative of the strength or quality of signals as received by the respective mobile station from the transceiver and on the basis of those messages determining a phase offset and amplitude distortion, internal to the transceiver, resulting from the differences in the instrumental properties of the receiver and transmitter chains in the transceiver; and (c) transmitting signals from each of the transmitter chains by applying to each transmitter chain amplitude weights and signal delays, selected on the basis of the determined phase offset and amplitude distortion, and received relative amplitudes and phase differences.
US Patent 07142830 Adaptive transceiver system US Patent 7142830 Adaptive transceiver system
US Patent 07142830 Adaptive transceiver system
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