As Open Radio Access Network (Open RAN) is gaining momentum, the community at the same time has started promoting the microservice-based Radio Intelligent Controller (RIC) platform, which allows MNOs to implement external applications, called xAPPs, to control parts of their radio equipment to get access to the full benefits of network virtualization and Open RAN. The RIC platform features a cloud-native architecture, which supports active clustering for scalability, performance, and high availability of non-Real-Time (RT) and near-RT operations, including network configuration and life cycle management, intelligent beam optimization, Radio Resource Management (RRM), Self-Organized Networking (SON), and many others. Figure 1 gives an open and virtualized RAN architecture together with the RIC platform to run non-RT and near-RT applications.
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