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5G-NTN GEO-based Over-The-Air Demonstrator using OpenAirInterface
Kumar, Sumit; Kodheli, Oltjon; Abdalla, Abdelrahman et al.
2022In 5G-NTN GEO-based Over-The-Air Demonstrator using OpenAirInterface
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Keywords :
5G; Software Defined Radio; Non Terrestrial Networks
Abstract :
[en] 5G services combined with the satellites, also termed 5G NonTerrestrial Networks (5G-NTN), have the capability of providing connectivity to the areas which were previously either unreachable or too costly to be reached by terrestrial communication networks. Proof-of-Concept (POC) demonstrators, preferably based on open-source implementation are desirable to expedite the ongoing research on 5G-NTN. In this work, we discuss the contributions made during the project 5G-GOA: 5G-Enabled Ground Segment Technologies Over-The-Air Demonstrator which aims to provide direct access to 5G services to a UE through a transparent payload Geostationary (GEO) satellite. 5G-GOA uses the open-source Software-Defined-Radio (SDR) platform OpenAirInterface (OAI) and does the necessary adaptations to achieve its objectives. Adaptations span physical layer techniques (e.g. synchronization) up to upper layer implementations (e.g., timers and random-access procedures) of the Radio Access Network (RAN). The adaptations are based on 3GPP 5G-NTN discussions and the solutions are compliant with the recently frozen 3GPP Release-17. An endto-end SDR-based 5G-NTN demonstrator has been developed for Over-The-Satellite (OTS) testing. We present results from several experiments that were conducted for in-lab validation of the demonstrator using a satellite channel emulator before going live with OTS tests. Experimental results indicate the readiness of the demonstrator for OTS testing which is scheduled during ICSSC 2022. The source code has been submitted to OAI public repository and is available for testing.
Research center :
- Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM - Signal Processing & Communications
Disciplines :
Electrical & electronics engineering
Author, co-author :
Kumar, Sumit ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Kodheli, Oltjon ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Abdalla, Abdelrahman ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Querol, Jorge  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Chatzinotas, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Casati, Guido;  Fraunhofer IIS, Germany
Schlichter, Thomas;  Fraunhofer IIS, Germany
Heyn, Thomas;  Fraunhofer IIS, Germany
Cheporniuk, Hlib;  University of the Bundeswehr Munich, Germany
Volk, Florian;  University of the Bundeswehr Munich, Germany
Schwarz, Robert T.;  University of the Bundeswehr Munich, Germany
Knopp, Andreas;  University of the Bundeswehr Munich, Germany
Kapovits, Adam;  Eurescom GmbH,Germany
Kaltenberger, Florian;  Eurecom, France
More authors (4 more) Less
External co-authors :
yes
Language :
English
Title :
5G-NTN GEO-based Over-The-Air Demonstrator using OpenAirInterface
Publication date :
October 2022
Event name :
39th International Communications Satellite Systems Conference (ICSSC)
Event place :
Stressa, Italy
Event date :
18-21 October
Audience :
International
Main work title :
5G-NTN GEO-based Over-The-Air Demonstrator using OpenAirInterface
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
Name of the research project :
5G-GoA
Funders :
ASE - Agence Spatiale Européenne [FR]
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since 15 January 2023

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