Service-Based Slice Selection Function For 5g

Through successive technological innovation, mobile networks have been able to cope with traffic growth and the changing nature of services. However, there is still a gap between the possible transformation in terms of performance and efficiency, and the emerging new service requirements. This paper presents the ongoing mobile network evolution towards 5G, with a focus on the emerging network slicing concept, supposed to cope with the disparate requirements of future services and applications. Network slicing allows for the coexistence of different architectures to address disparate service requirements in a more efficient way. A slice selection function is a key element in the future core network architecture, enabling the UE to be allocated to a proper slice. We proposed a new slice selection mechanism allowing the UE to connect to multiple slices based on service type. The standardization status on this matter and the technical aspects of the proposed selection function are discussed.