Carrier aggregation and dual connectivity switching in a cellular network

A method comprising

• electronically determining whether an inter-distributed unit (inter-DU) communication link between a plurality of distributed units (DUs) in a Radio Access Network (RAN) of a wireless cellular telecommunication network that provides wireless cellular telecommunication network services to a plurality of UEs is available;
• electronically determining whether to use carrier aggregation across cells that are each managed by different respective DUs of the plurality of DUs and or to use dual connectivity for the cells based on the determination whether an inter-DU communication link is available;
• electronically determining whether measurements of inter-DU communication characteristics of communication between the plurality of DUs are available;
• electronically determining whether to use the carrier aggregation or the dual connectivity based on the determination whether the measurements of inter-DU communication characteristics are available;
• in instances where the measurements of inter-DU communication characteristics are determined to be available, determining, based on the measurements, whether one or more of inter-DU link latency and inter-DU link bandwidth availability meets criteria for using the carrier aggregation;
• and
• electronically determining whether to use the carrier aggregation or the dual connectivity based on the determination whether the one or more of inter-DU link latency and inter-DU link bandwidth availability meets the criteria.