ORANSlice: An Open-Source 5G Network Slicing Platform for O-RAN

TL;DR

ORANSlice is developed, an open-source network slicing-enabled Open RAN system integrated with popular open-source RAN frameworks that supports RAN slicing control and optimization via xApps on the near-real-time RAN Intelligent Controller (RIC).

Abstract

Network slicing allows Telecom Operators (TOs) to support service provisioning with diverse Service Level Agreements (SLAs). The combination of network slicing and Open Radio Access Network (RAN) enables TOs to provide more customized network services and higher commercial benefits. However, in the current Open RAN community, an open-source end-to-end slicing solution for 5G is still missing. To bridge this gap, we developed ORANSlice, an open-source network slicing-enabled Open RAN system integrated with popular open-source RAN frameworks. ORANSlice features programmable, 3GPP-compliant RAN slicing and scheduling functionalities. It supports RAN slicing control and optimization via xApps on the near-real-time RAN Intelligent Controller (RIC) thanks to an extension of the E2 interface between RIC and RAN, and service models for slicing. We deploy and test ORANSlice on different O-RAN testbeds and demonstrate its capabilities on different use cases, including slice prioritization and minimum radio resource guarantee.

Figures (5)

• Figure 1: End-to-end network slicing in O-RAN.
• Figure 2: Illustration of RRM Policy Ratio Message
• Figure 3: Average number of DL allocated to each slice in the first experiment.
• Figure 4: DL Throughput for each slice in the first experiment.
• Figure 5: DL throughput for each slice and in the second experiment.