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- ONAP Frankfurt: A1 Adapter in ONAP
- ONAP Guilin: ONAP/3GPP & ORAN Alignment: A1 Adapter extensions
- ONAP Honolulu: R8 A1 Adapter and Policy Management Extension
- ONAP Istanbul: R9 A1 Policy Function Extensions
The O-RAN Alliance defines a new management interface "A1" for RAN Management. This interface interconnects a new logical "Non-RealTime RAN Intelligent Controller (Non-RT-RIC)" function in the Service Management & Orchestration (SMO) layer with a new logical "Near-RealTime RAN Intelligent Controller (near-RT-RIC)" function in the RAN. This new A1 interface allows the Non-RT-RIC to provide Policy Guidance to the RAN (near-RT-RIC) to steer its operation. These are defined by the O-RAN Alliance as "A1 Policies".
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