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Best Practices from NTT DOCOMO’s Open and Intelligent RAN Deployment

NTT DOCOMO, OREX

August 31, 2025

This white paper shares NTT DOCOMO’s extensive experience in deploying a nationwide, multi-vendor Open and Intelligent RAN in Japan.

It highlights motivations, business drivers, phased deployment strategies, key success factors, and lessons learned—ranging from interoperability testing to system integration frameworks like OREX.

The insights provide practical guidance for operators worldwide, offering a deep dive into the organizational, technical, and ecosystem aspects essential for successful Open RAN adoption.

This white paper shares NTT DOCOMO’s extensive experience in deploying a nationwide, multi-vendor Open and Intelligent RAN in Japan.

It highlights motivations, business drivers, phased deployment strategies, key success factors, and lessons learned—ranging from interoperability testing to system integration frameworks like OREX.

The insights provide practical guidance for operators worldwide, offering a deep dive into the organizational, technical, and ecosystem aspects essential for successful Open RAN adoption.

The focused topics of the event are fully virtualized O-RAN based end-to-end system setup and O-RAN Energy Saving Use Case Tests.It is the first validation of power consumption reduction using real E2E equipment in terms of the energy saving use case of Non-RT RIC according to O-RAN specification.

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