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Licensed shared access testbed for integrated satellite-terrestrial communications: the ASCENT project

Licensed shared access testbed for integrated satellite-terrestrial communications: the ASCENT project

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The ASCENT project studies spectrum sharing between satellite and cellular networks using a licensed shared access (LSA) approach, in which information stored in a database is exploited to enable spectrum sharing between users. The project focuses on one side 5G pioneer bands 3.4-3.8 GHz and 24.25-27.5 GHz, which are well-recognized as satellite frequency bands, and on the other side on legacy international mobile telecommunication (IMT) frequency bands. We identified different spectrum sharing scenarios and defined four use cases. We have developed an LSA system testbed, which is used to study and validate the interest of the LSA approach in satellite/ terrestrial sharing scenarios. The results of our simulations and the tests realized on the testbed show that the LSA approach could be used to improve spectrum sharing between satellite and terrestrial networks. This approach could be envisaged to facilitate spectrum sharing between terrestrial mobile network such as international mobile telecommunications and satellite networks operating in a same frequency band. Such an approach could offer new spectrum sharing opportunities which could benefit to both mobile and satellite community. The LSA testbed and the results of the project will be further utilized to develop and assess new sharing scenarios that could lead to creating new spectrum opportunities for different radiocommunication systems.

Chapter Contents:

  • 15.1 Introduction
  • 15.2 Sharing use cases
  • 15.2.1 Sharing the 5G pioneer bands
  • 15.2.2 Sharing terrestrial IMT bands
  • 15.3 Testbed architecture
  • 15.3.1 Architecture for sharing the 5G pioneer bands
  • 15.3.2 Architecture for sharing terrestrial IMT bands
  • 15.4 Performance evaluations
  • 15.4.1 Evacuation and frequency change times
  • 15.4.2 Scalability of the testbed
  • 15.4.3 Proof of concept of IMT frequency bands sharing
  • 15.5 Conclusions
  • Acknowledgments
  • References

Inspec keywords: radio spectrum management; satellite communication; 5G mobile communication

Other keywords: frequency 3.4 GHz to 3.8 GHz; legacy international mobile telecommunication frequency bands; spectrum sharing opportunities; frequency 24.25 GHz to 27.5 GHz; ASCENT project; IMT frequency bands; radiocommunication systems; satellite network; cellular networks; LSA system testbed approach; licensed shared access approach; terrestrial mobile network; integrated satellite-terrestrial communications; satellite frequency bands; international mobile telecommunications

Subjects: Legislation, frequency allocation and spectrum pollution; Mobile radio systems; Satellite communication systems

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