System and method for antenna diversity using equal power joint maximal ratio combining

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United States of America Patent

PATENT NO RE47732
SERIAL NO

15842473

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Abstract

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id='REI-00001' date='20191119' An equal gain composite beamforming technique which includes the constraint that the power of the signal output by each antenna is the same, and is equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. By reducing output power requirements for each power amplifier, the silicon area of the power amplifiers are reduced by as much as N times (where N is equal to the number of transmit antennas) relative to a non-equal gain composite beamforming technique.id='REI-00001' id='REI-00002' date='20191119' A method and apparatus are disclosed for a transmission technique by a wireless communications device which includes providing that the power applied to each transmit antenna may be equal to the total power of the transmit signal divided by the number N of transmit antennas from which the signal is to be transmitted. The device may determine a total transmit power and produce a multi-carrier signal for transmission. Accordingly, the device may apply a power to each of the N transmit antennas, for the multicarrier signal, which is equal to the total transmit power divided by N. Further, the device may produce a weight for each of the N transmit antennas used. The device may weight the multi-carrier signal for each antenna per the produced weight. Each transmit antenna signal may be amplified by an amplifier coupled to that antenna.id='REI-00002'

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Patent Owner(s)

Patent OwnerAddress
IPR LICENSING INCWILMINGTON DE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sugar, Gary L San Francisco, US 75 5559
Vaidyanathan, Chandra Rockville, US 41 1830

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