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Virtualized Radio Access Network

A virtualized Radio Access network (vRAN) is a RAN architecture where both (a) the baseband and radio layers are virtualized and functions may be moved to base stations that have traditionally been dedicated to serving small cells, and (b) the macro layer may be implemented separately. Virtualized Radio Access Network (vRAN) is a concept that virtualizes the traditional radio access network (RAN) architecture by separating the baseband layer from the radio layer. vRAN is the first commercially-cataloged solution to provide an aggregation of all radio access networks available on a carrier’s network. This technology combines the benefits of software defined networking (SDN) with virtualization in order to facilitate a wide range of new services, improve revenue opportunities and help users reduce costs. vRAN dynamically configures and re-configures a set of macro site base stations in order to optimize throughput, capacity and coverage for network users. A virtualized Radio Access Network (vRAN) consists of a centralized controller and xSS(macro cell site) in the core network; it combines xSS resources into one or multiple virtual cell site entities.

vRAN architecture explained

The vRAN solution guides operators to virtualize the Radio Access Network (RAN). It allows operators to control and virtualize their mobile networks without changing their current architecture in order to reduce costs, increase flexibility and adopt new business models. The vRAN is a virtualized radio access network. It describes a recommended architecture to support the evolution toward cloud-native WLANs and test-beds. The vRAN abstracts the service layer of the RAN and multiplexes it with many users on a single physical infrastructure through an NFV-based approach. This allows operators to migrate legacy solutions that are not capable of scaling up to meet future capacity needs while still supporting existing devices. vRAN is a technology that leverages a Virtualized Platform-as-a-Service (PaaS) to deploy an intelligent, virtualized XCeiver (macro cell) capacity that can dynamically adapt to changing load conditions. This virtual deployment is accomplished by placing the macro cell functions into software. The advent of 5G technology and concept are focused on network densification to meet the demand of massive data consumption by users. The virtualized Radio Access Network (vRAN) is a promising solution to increase the capacity and coverage of the current LTE infrastructure while reducing operational costs. Our vRAN solution provides several key features such as core network decoupling, control plane separation, user plane aggregation, etc. vRAN describes the virtualized Radio Access Network (vRAN) concept, an integrated software and hardware solution that is used as an enterprise network to access various transport networks. The flexible and scalable architecture of vRAN supports high-quality services in many different environments with a broad spectrum of mobile broadband user demand. The vRAN is an overlay architecture that uses existing 4G LTE technology to virtualize radio access network functions in software.

DU CU virtualization explained

The network functions simply move from the hardware to VNFs in an NFV infrastructure. vRAN provides network abstraction and centralized massively scalable control plane and management of multiple radio networks over a single data path. This enables flexible, programmable and elastic service creation, delivery, and management independent of physical radio locations. vRAN is a Software Defined Radio (SDR) technology that provides radio services to access networks and mobile devices. The vRAN solution enables new business models and flexibility, while retaining the development and operational investment in legacy radio solutions. The vRAN architecture is designed to provide software-defined services across a variety of radio access networks. It offers a unified programming model, common APIs and policies, and a consistent operational experience regardless of the physical network that runs underneath it.

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