Open RANOpen RANDraft — coming soon
O-RAN Architecture Explained
A breakdown of the O-RAN Alliance reference architecture: O-CU, O-DU, O-RU, the RIC, and the open interfaces connecting them.
By Manas·5 min read·Updated 2026-07-18
This article is a placeholder. Full write-up coming soon.
A breakdown of the O-RAN Alliance reference architecture: O-CU, O-DU, O-RU, the RIC, and the open interfaces connecting them.
What this article will cover
- O-RAN reference architecture overview
- O-CU, O-DU, and O-RU functional split
- Open interfaces: O1, O2, A1, E2, Open Fronthaul
- Near-RT RIC and Non-RT RIC roles
- xApps and rApps as the app ecosystem for RAN intelligence
Open RANO-RANArchitecture