A DU will collect UE reported SINR. For example, DU1 1005 can collect reports from UE 116 through gNB 102 and DU2 1010 can collect reports from UE 115 through gNB 103. The reports can include an SINR measured by each UE. The DU1 1005 and DU2 1010 each report their respective cell's throughput, SINR, load, and number of connected UE's to a near real time (RT) radio area network (RAN) intelligent controller (RT RIC) server 1015. The near RT RIC server 1015 reports the measurement information to the non-RT RIC server 1020. The measurement information can include KPIs 1025 from each respective DU. The non-RT RIC server 1020 collects information from the DUs and from the near RT RIC server 1015. The non-RT RIC server 1020 decide the cluster size from the target cell's neighbor cell list. The non-RT RIC server 1020 then fetches the reported KPIs from the cluster and calculates the objective function. The non-RT RIC server 1020 generates a new set of common beam parameters and A2 and A5 parameters for the target DU, such as DU1 1005. Then, DU1 1005 will configure its received common beam parameters and A2, A5 parameters.

FIGS. 11 and 12 illustrate an example beam searching procedure according to embodiments of the present disclosure. The embodiments of the beam searching method shown in FIGS. 11 and 12 are for illustration only and other embodiments could be used without departing from the scope of the present disclosure.