The 3GPP release for 5G (R15) assigns each User Equipment (UE) a radio beam by employing Massive Multi-User MU-Multiple-Input-Multiple-Output (MIMO) technology. Each beam carries. at the downlink. a data rate according to the modulation and coding scheme (MCS) assigned by the base station (BS). https://www.roneverhart.com/RKT-9-RDO/