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Licensed shared access field trial and a testbed for satellite-terrestrial communication including research directions for 5G and beyond
International Journal of Satellite Communications and Networking ( IF 1.7 ) Pub Date : 2020-11-20 , DOI: 10.1002/sat.1380
Marko Höyhtyä 1 , Mikko Majanen 1 , Mika Hoppari 1 , Pertti Järvensivu 1 , Heikki Kokkinen 2 , Jaakko Ojaniemi 2 , Arto Reis‐Kivinen 2 , Olivier Pellay 3 , Duc Pham‐Minh 3 , Maria Guta 4
Affiliation  

This paper describes a licensed shared access (LSA) testbed and field trials using a live network. The testbed includes real 4G base stations and up to 1000 virtual base stations, in the spectrum sharing scenario between satellite and cellular systems. The trials focus on 5G pioneer bands 3.4–3.8 GHz and 24.25–27.5 GHz where a satellite system is operating in the downlink direction and a cellular system is accessing the same band. The designed testbed supports both frequency bands. The performance evaluation concerns evacuation and frequency change times using different types of base stations in 3.6 GHz, that is, how fast the system relinquishes the shared band to the primary user and continues transmission using another band. We show that our LSA system is scalable and able to support large number of base stations. In addition, we investigate how satellite systems could reuse International Mobile Telecommunication (IMT) bands to offer enhanced satellite communication services for land, maritime, and aeronautical applications. Preliminary simulations and analysis confirm the possibility to reuse IMT spectrum for satellite systems without causing harmful interference to the terrestrial system.

中文翻译:

获得许可的共享接入现场试验和卫星-地面通信试验台,包括 5G 及以后的研究方向

本文描述了使用实时网络的许可共享访问 (LSA) 测试平台和现场试验。在卫星和蜂窝系统之间的频谱共享场景中,测试台包括真正的 4G 基站和多达 1000 个虚拟基站。试验的重点是 5G 先锋频段 3.4-3.8 GHz 和 24.25-27.5 GHz,其中卫星系统在下行链路方向运行,蜂窝系统正在访问同一频段。设计的测试平台支持两个频段。性能评估涉及在 3.6 GHz 中使用不同类型基站的疏散和频率更改时间,即系统将共享频段放弃给主要用户并使用另一个频段继续传输的速度。我们展示了我们的 LSA 系统是可扩展的并且能够支持大量的基站。此外,我们研究卫星系统如何重用国际移动电信 (IMT) 频段,为陆地、海上和航空应用提供增强的卫星通信服务。初步模拟和分析证实了在不对地面系统造成有害干扰的情况下为卫星系统重新使用 IMT 频谱的可能性。
更新日期:2020-11-20
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