Abstract
Network slicing is a key element in 5G networks. It allows a mobile network operator (MNO) to offer multiple logical networks tailored to the requirements of different industry verticals over a shared infrastructure. From the point of view of an MNO, a mobile virtual network operator (MVNO) is a particular type of vertical network requiring not only the provision of logical networks with specific infrastructure resources but also customized management capabilities to allow the MVNO to offer network slice-based services to its clients over the infrastructure of multiple MNOs. However, the lack of flexibility to provide a customized and efficient network slice management system per tenant under the current proposals of the 3rd Generation Partnership Project (3GPP) and European Telecommunications Standards Institute (ETSI) limits the possibilities of MVNOs. This paper addresses this requirement by proposing a novel virtualized multidomain and multiclient orchestration system aligned with the functionalities of the network slicing management framework proposed by the 3GPP and ETSI. In particular, there are three contributions of this paper: (i) an extended service-based architecture is designed to provide an isolated management system to different MVNOs; (ii) a novel high-level slice instance template is defined to specify management and isolation requirements supporting network slicing as a service model; and (iii) finally, a teleoperated driving use case is described to showcase how our proposal provides an MVNO with an independent management system to orchestrate several network slices in cross-domain environments.
Highlights
Mobile network operators (MNOs) are evolving their network infrastructure to profit from the advantages of network function virtualization (NFV) technologies
The present work proposes extending the network slicing system model defined by the 3rd Generation Partnership Project (3GPP) to provide mobile virtual network operator (MVNO) with network slicing management capabilities similar to those available for MNOs based on the network slice as a service (NSaaS) concept
The communication service management function (CSMF), network slice management function (NSMF), and network slice subnet management function (NSSMF) represent core information related to the list of service profiles, infrastructure resources, and network slices provided by the MNO in a multidomain and multitenancy context
Summary
Mobile network operators (MNOs) are evolving their network infrastructure to profit from the advantages of network function virtualization (NFV) technologies. MNOs must be provided with the appropriate management and orchestration capabilities to properly use their physical and virtual resources to fulfill the network service requirements of all users in terms of security policies, isolation, reliability, bandwidth, and delay In this context, the 3rd Generation Partnership Project (3GPP) and the International Telecommunication. The time involved in analyzing the service performance analytics during the runtime of network services impacts the constraints defined in SLAs. the current network slice management model must be extended to consider the particular management needs of verticals such as MVNOs. The present work proposes extending the network slicing system model defined by the 3GPP to provide MVNOs with network slicing management capabilities similar to those available for MNOs based on the NSaaS concept.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
