Accelerating the Vision of Virtualization in the RAN

This white paper discusses the evolution and future of network functions virtualization (NFV) with a focus on the radio access network (RAN). It outlines the transition from proprietary hardware to commercial servers, emphasizing the need for open standards and disaggregation in modern RAN architecture. The document details how virtualization alone is insufficient for operators' transformation needs, highlighting the importance of combining it with disaggregation and a standards-based solution. It explains the segmentation of the RAN into various components, such as the radio unit and baseband unit, and discusses the challenges and opportunities presented by virtualization. The paper also addresses the role of open systems and standards bodies like 3GPP and the O-RAN Alliance in facilitating interoperability among different vendors. Furthermore, it presents the goal of achieving a multi-vendor, open, virtualized, and disaggregated RAN, while illustrating the implications of these changes for operators and the vendor community.