Poster: A Cross-Slice Resource Orchestration Framework for 5G Network Services

Network Slicing has emerged as a keystone for supporting multiple service verticals over shared 5G network infrastructure. It leverages virtualization techniques to allocate programmable network instances matching service requirements. This requires novel resource allocation mechanisms, as well as new admission control and load balancing policies, to satisfy the diverse quality of service (QoS) requirements of different services, while optimizing the resource utilization across slices. This in turn requires accurate determination of loading on a slice, which not only depends on the type of application, but also on the stringency of QoS requirements, and hence existing metrics such as resource utilization may be inadequate. We introduce a novel load metric that can be used across slices, and illustrate how it can be used for load balancing, slice capacity resizing, and admission control in the proposed cross-slice resource orchestration framework.