5G interdomain orchestration mechanisms for flexible vertical services deployment

• Autor(a) principal: Fonseca, João Pedro Celestino da
• Data de Publicação: 2021
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10773/32336
• topic: 5G; NFV; OSM; Network slicing; Interdomain network slicing; Interconnection; Network slice as a service

The 5G verticals, are getting used to the idea of using 5G in their daily businesses. So far, there aren’t lots of communication service providers who can deliver these services, but they are already looking to provide new services as part of their business model. At the moment, one of the most active subjects of interest to them is the idea of network slicing, whose concept is pretty straightforward. Building on top of the basic concepts of SDN and NFV an network slice is a logical network link that covers the RAN and Core Networks, the characteritics of the slice are defined by the type of service needed. In this context, Communication Service Providers(CSPs) like Network Operators can provide, as proposed by 3GPP, Network Slice as a Service solutions to their consumers. This means, that a Consumer is able to leverage the use of slices from two or more CSPs. In this context, the work of this document tries to provide a solution for the stitching of slices from different administrative domains using the 5Growth platform as an entry point to request an End to End slice across administrative domains. The concept of stitching the several resources from different slices is called in this document, Interdomain Network Slicing. After reviewing the Specifications on the orchestration of network slices several solutions proposed. The results obtained so far indicate the feasibility of theses solutions.