Massive MIMO and beamforming.

7 technologies in 5G and 6G radio access networks.

Technologies

Massive MIMO active antenna systems Antenna arrays with integrated radios (32T32R, 64T64R and up) that multiply mid-band capacity.
Beam management SSB and CSI-RS beam sweeping, measurement and switching that keep devices on the best beam.
CSI feedback and codebooks Type I, Type II and enhanced Type II channel feedback that drives precoding accuracy.
Multi-user and uplink MIMO Serving many devices on the same resources and boosting uplink, often the limit for video and sensor sites.
Passive and multiband antennas Multiport passive panels that combine many bands on space-limited towers.
Distributed and cell-free MIMO Many coordinated access points serving users jointly instead of separate cells.
Reconfigurable intelligent surfaces Programmable surfaces that redirect radio waves to fill coverage holes at low power.