?? O-RAN Structure Overview??

?? O-RAN Structure Overview:

??? Service Management Orchestration Framework:

?? Non-Real-Time RAN Intelligent Controller: Manages RAN elements with apps (rApps).

?? Near-Real-Time RAN Intelligent Controller: Operates with a quicker response time using xApps.

?? O-RAN Components:

?? O-CU-CP (Control Plane): Controls the setup and management of network connections.

?? O-CU-UP (User Plane): Handles the data traffic for users.

?? O-DU (Distributed Unit):

Functions as the processing unit that communicates with the radio unit and user plane.

?? O-RU (Radio Unit):

Sends and receives radio waves to and from user devices.

?? O-Cloud:

Represents the cloud infrastructure supporting O-RAN network functions.

?? Connections and Interfaces:

?? The colorful lines indicate different interface connections:

A1: Interface between non-real-time and near-real-time RAN intelligent controllers.

E1: Interface between the control plane and the user plane.

E2: Interface between the RAN intelligent controllers and CU/DU.

F1-c/u: Interfaces for control and user plane traffic between the control unit and the distributed unit.

?? Open Fronthaul:

Represents the open standard for connectivity between the DU and RU.

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