Downlink Extrapolation for FDD Multiple Antenna Systems Through Neural Network Using Extracted Uplink Path Gains

When base stations (BSs) are deployed with multiple antennas, they need to have downlink (DL) channel state information (CSI) to optimize downlink transmissions by beamforming. The DL CSI is usually measured at mobile stations (MSs) through DL training and fed back to the BS in frequency division du...

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Bibliographic Details

Published in:	IEEE Access
Main Authors:	Hyuckjin Choi, Junil Choi
Format:	Article
Language:	English
Published:	IEEE 2020-01-01
Subjects:	FDD DL CSI extrapolation NN path gain extraction
Online Access:	https://ieeexplore.ieee.org/document/9057648/