# IVC 5G O-RAN Summary

###### tags: `UNILA`

## Summary 9 RAN Intelligent Controller (RIC), Network Management and Security

Nama : Hans Khalif Hafif
Student ID : 1915031078
Team : A-3

O-RAN SMO Interfaces
The key O-RAN SMO interfaces are:
• O1: Interface between management entities in Service Management and Orchestration Framework and O-RAN managed elements, for operation and management, by which FCAPS management, software management, and file management shall be achieved.

• O2 (previously O1*): Interface between Service Management and Orchestration Framework and Infrastructure Management Framework supporting O-RAN virtual network functions.

• A1: Interface between non-RT RIC and near-RT RIC. Over this interface non-RT RIC performs policy management, enrichment information and AI/ML model updates on the near-RT RIC.

The RAN intelligent Conttroller is cloud native, and a central component of an open and virtualized RAN network. The RIC aligns with 3GPP release 15 and beyond and supports network slicing, eMBMS, MCx etc.
It helps operators to optimize and launch new services by allowing them to make the most of network resources. It also helps operators to ease network congestion.
The RIC enables interoperability across different hardware (O-RU, servers) and software (O-DU/O-CU) components in an O-RAN architecture. It features a standardized interface – called the E2 – from the O-CU and O-DU to the RIC. It’s along that interface that the RIC receives measurements from the RAN about the performance of the network.

It then makes intelligent decisions to improve things like subscriber positioning, handover to a cell, and changing to different frequency. It adapts any variables in order to optimize the subscriber experience and network performance. To affect these improvements, intelligence is then sent back across the interface to the RAN. A measurement is then made to see if there’s been an improvement.