Virtualized RAN (vRAN) Technical Overview

The course introduces virtualized RAN and then discusses RAN Architecture and Split Options, Interfaces and Transport, vRAN Architecture , provides an overview of O-RAN, and reviews deployment considerations.

PREREQUISITES
• Knowledge of LTE or 5G network architecture
• Knowledge of LTE or 5G protocol stack
• 5G NR Technical Overview

OBJECTIVES
• Discuss RAN evolution and the motivation for virtualization.
• Explain the concept of RAN Virtualization.
• Identify industry efforts around RAN Virtualization standardization.
• Explain the RAN evolution from 2G to 5G.
• Discuss Distributed RAN (D-RAN), Centralized RAN (C-RAN) and Virtualized RAN (vRAN).
• Introduce the RAN split options proposed by 3GPP.
• Describe the more common split options in detail.
• Identify the transport network and available transport options.
• Describe general principles of the CU-DU interface.
• Discuss different fronthaul interface options.
• Illustrate vRAN Architecture and centralized and distributed functions.
• Explain the control plane and user plane separation and deployment options.
• Describe vRAN dependency on transport network latency, bandwidth, and resiliency.
• Discuss potential benefits of vRAN deployments.
• Explain the concept of O-RAN and the potential benefits.
• Illustrate O-RAN architecture and interfaces.
• Discuss White Box Hardware in O-RAN.
• Describe types of base station architecture, deployment scenarios, and performance aspects.
• Discuss fronthaul requirements based on RAN split options.
• Explain transport network dimensioning.
• Discuss network performance considerations.
• List URLLC considerations with RAN split.
• Describe co-located 4G/5G implementation options.
• Explain security aspects with RAN split options.

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