Hi Karan,
5G there are lot of options available for Beamforming and MIMO. Beamforming is close to MU-MIMO concepts, as one of the Beam will be dedicated to UE's in NR. As in MUMIMO one of the layer/antenna will be dedicated to UE's.
In case of 5CA, If the Scell sends different TM mode in each Scell. how UE supports this?