What is the reason why despite the fact that gNBs have 32 or 64 TRX antenna elements, at the end we are able to use only 2, 4 or 8 Rx antennas for receiving in UL?
32 or 64 TRX antennas are about numbers of physical antennas which used for beamforming
2,4,8 Rx I think refers to number Rx FR chains which are capable for Rx diversity.
Just my assumption
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