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StatusOngoing
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Status date2024-04-30
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Activity Code3F.027
Starting from the Open Air Interface (OAI) framework, the FLEX-SPACE 5G project focuses on following objectives:
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Constructing a modular and flexible end-to-end 5G-NR NTN test platform, which allows deployment of UE(s), gNB(s) and Core Network while seamlessly integrating the system with Lasting’s multi-orbit channel emulator CELEOS. By harnessing SDR technology, this setup enables end users to simulate their 5G-NR use cases over LEO satellites, as NTN support is embedded within the UE, gNB and channel emulator SW.
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Enhancing the support for adaptive modulation and coding scheme, enabling the system to react to changing radio conditions over the radio link
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Providing support for handovers (NTN – NTN ; TN – NTN)
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Integrating with the O-RAN SMO framework, by utilizing both Non-Real Time RIC and Near-RT RIC to control and optimize RAN functions, with a specific emphasis on handover optimization.
Key challenges:
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Adapt to OAI LEO roadmap and implementation plans
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Adjusting the sample rate between SDR and gNB SW as well as multiplexing access to the SDR driver
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Virtualization of all applications (applications are running in containers)
Benefits:
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E2E 5G-NR NTN test system in a compact form factor, offering following key features:
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Support for LEO satellites in UE and gNB SW
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Enhancement of adaptive MCS
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Support for NTN-NTN and TN-NTN handover
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GUI for simplified configuration
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Integration with CELEOS multi-orbit channel emulator
Product features:
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Support for LEO satellites in UE and gNB SW
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Integration with CELEOS multi-orbit channel emulator
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Enhancement of adaptive MCS
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Support for NTN-NTN and TN-NTN handover
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GUI for simplified configuration
The product consists of a 5G-NR NTN communication system capable of dealing with all channel impairments specific to a LEO satellite channel. It is designed for laboratory use in a cabled RF environment to emulate a real 5G NTN-capable network. The following diagram illustrates the high-level architecture:
The project milestones are the following:
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PCR: Product definition phase completion.
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PDR: Approval of the high-level architecture for the system.
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TRR: Completion of technical level design and preliminary test reports.
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FR: Presentation and completion of the final report.
The project has successfully kicked off, with significant progress already made in the definition phase.