The University of Edinburgh

Title Edinburgh

Orion: RAN Slicing for a Flexible and Cost-Effective Multi-Service Mobile Network Architecture


University of Edinburgh and NSCR Demokritos


Xenofon Foukas, Mahesh K. Marina, Kimon Kontovasilis.

3rd Party Hardware and Software used

  • Lime microsystems SDR

Current State

Prototype implementation of Orion for LTE, with experimental results, showing alternative RAN slicing approaches, indicating its efficiency and highlighting its isolation capabilities.

Also an extended Orion to accommodate the needs of OTT providers.


Emerging 5G mobile networks will become multiservice environments, enabling the dynamic deployment of services with a diverse set of performance requirements, accommodating the needs of mobile network operators, verticals and over-the-top (OTT) service providers.

Virtualizing the mobile network in a flexible way is key for a cost-effective realization of this vision. While virtualization has been extensively studied in the case of the mobile core, virtualizing the radio access network (RAN) is still at its infancy.

Hence we developed Orion, a novel RAN slicing system that enables the dynamic on-the-fly virtualization of base stations, the flexible customization of slices to meet their respective service needs, and which can be used in an end-to-end network slicing setting.

Orion guarantees the functional and performance isolation of slices, while allowing for the efficient use of RAN resources among them.

Links & video

Video - BT hackathon orion

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