NASP: Network Slice as a Service Platform for 5G Networks
Felipe Hauschild Grings, Gustavo Zanatta Bruno, Lucio Rene Prade, Cristiano Bonato Both, Jos\'e Marcos Camara Brito

TL;DR
NASP is a comprehensive platform enabling end-to-end network slicing across multiple domains in 5G, improving flexibility, reducing latency, and lowering operational costs through standards-aligned orchestration.
Contribution
Introduces NASP, a novel platform that manages 5G network slices across diverse networks, filling gaps in existing standards and supporting multiple deployment scenarios.
Findings
Core-network configuration accounts for 68% of slice-creation time.
URLLC session setup is 93% faster than in shared slices.
Edge deployment reduces operational costs by 112% compared to centralized deployment.
Abstract
With 5G's rapid global uptake, demand for agile private networks has exploded. A defining beyond-5G capability is network slicing. 3GPP specifies three core slice categories, massive Machine-Type Communications (mMTC), enhanced Mobile Broadband (eMBB), and Ultra-Reliable Low-Latency Communications (URLLC), while ETSI's Zero-Touch Network and Service Management (ZSM) targets human-less operation. Yet existing documents do not spell out end-to-end (E2E) management spanning multiple domains and subnet instances. We introduce the Network Slice-as-a-Service Platform (NASP), designed to work across 3GPP and non-3GPP networks. NASP (i) translates business-level slice requests into concrete physical instances and inter-domain interfaces, (ii) employs a hierarchical orchestrator that aligns distributed management functions, and (iii) exposes clean south-bound APIs toward domain controllers. A…
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