Radio frequency beamforming basis function feedback

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United States of America Patent

PATENT NO 9912393
SERIAL NO

15128691

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Abstract

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Methods, apparatuses, systems, and computer program products for obtaining full channel knowledge between each transmitter and each receiver when using radio frequency (RF) beamforming are provided. One method described herein includes a method of obtaining channel knowledge at a transmitter with Q transmit antennas for use in beamforming where the transmitter transmits sounding waveforms from B orthogonal basis functions from a transmit array comprised of the Q transmit antennas. In response to the transmitted sounding waveforms the transmitter receives at least one feedback message from a receiver. The feedback message(s) may include an indication of the best MB basis functions plus a gain and phase value for each of the MB basis functions.

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Patent Owner(s)

Patent OwnerAddress
NOKIA TECHNOLOGIES OYKARAPORTTI 3 ESPOO 02610

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Thomas, Timothy Au Train, US 36 277
Vook, Frederick Schaumburg, US 34 202

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