Toward the Realization of Vertical Slices: Mapping 5G Features to Industrial Requirements

5G network is expected to be highly flexible, enabling its adjustment according to user requirements. To achieve this, 5G leverages network slicing, allowing the division of the network infrastructure into different slices with completely different communication performances. However, this flexibility is not easily achieved, requiring the use of available 5G features, Quality of Service (QoS) parameters, and technologies to adapt the communication performance according to the user requirements. Furthermore, to foster wider adoption of 5G by verticals, it is crucial to simplify the network configuration process by providing common interfaces that accept attributes familiar to vertical users. In this line, having a vertical-oriented network slice manager capable of automating the deployment of slices in 5G networks is crucial. One of the key elements involved in creating such a system is a mapping between common communication attributes and available 5G configuration parameters and features. This mapping facilitates the adjustment of communication performance to meet vertical requirements. With this in mind, the document explores the realisation of such a mapping. First, it analyses the communication attributes defined by well-known organisations (e.g., 5G-ACIA, and 5GDNA); these attributes define the performance requirements of network slices or industrial use cases. Then, it maps these attributes to standardised R17 5G functionalities. The mapping is followed by a validation using the 5GAIner infrastructure (part of the IMAGINE-B5G experimental facilities), a real-world commercial-grade 5G Standalone (SA) network. The results showcase the feasibility of using this mapping to realize vertical slices.