The Difference between Open RAN & Traditional RAN

Open and virtualized RAN, Open vRAN refers to a disaggregated approach of deploying virtualized mobile networks by using open and interoperable protocols and interfaces, implemented over a common propose hardware in a multi-vendor software environment, allowing increased flexibility over traditional RAN architectures, aiming to provide OPEX and CAPEX savings while fostering innovation.


Traditional RAN Vs. Open RAN（Source: Deloitte）

Traditional RAN

• Protocol stack that runs on proprietary hardware.
• Radio Unit and BBU are connected via proprietary interfaces.
• Single vendor provides both Radio Unit and BBU.

Open RAN

• Standardized SW-centric approach based on commoditized hardware.
• Open standard interfaces that ensure deployment of multi-vendor RU and CU/DU ecosystem, powered by an open-source. 
• AI/ML-based platform designed for non and near-RT network functions (RIC).

Source: https://moniem-tech.com/2021/04/16/what-is-the-difference-between-traditional-ran-and-open-ran/