Demystifying Cloud RAN Architectures

Frank Rayal

Imagine a wireless service provider can provide service anywhere there’s Internet connectivity at the click of a button. All they need is a small remote radio connected to the Internet. The baseband modems no longer reside at cell sites, but are hosted in data centers where powerful commercial servers execute all the functions of todays base station baseband units. The remote radios can even be self-deployed by the mobile subscribers. The service provider would have full control of the service features which can be configurable on the fly. Sounds like science fiction to some, but this is what virtualization of the radio access network aims to achieve.

No wonder then that the term Cloud RAN which meant centralization and virtualization of baseband became an overused term to denote all types of architectures. We live in the world of Anything as a Service (XaaS). Which investors would put money now in a…

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