Home > Glossary > O-CU


O-CU (O-RAN Central Unit) is a key component of the O-RAN (Open Radio Access Network) architecture. It is a centralized network element that plays a crucial role in the control and management of radio access network (RAN) resources in 5G and future wireless communication systems.

What are the key features and capabilities of the O-CU in the O-RAN architecture?

  • The O-CU is responsible for managing the interface between the core network and the RAN, as well as coordinating the operation of the various RAN components, such as the radio units (RUs) and the distributed units (DUs).
  • It also performs various functions such as load balancing, resource allocation, and interference management to ensure efficient and effective utilization of RAN resources.
  • In addition to its traditional RAN control and management functions, the O-CU is also designed to support the O-RAN architecture’s key principles of openness, flexibility, and interoperability. It enables the integration of various RAN components from different vendors, and allows for the dynamic allocation and sharing of RAN resources between different operators and service providers.

Overall, the O-CU is a key enabler of the O-RAN architecture, and plays a crucial role in enabling the next generation of wireless communication systems.