Field trial of the 3.5 GHz citizens broadband radio service governed by a spectrum access system (SAS)

Marko Palola, Marko Höyhtyä, Pekka Aho, Miia Mustonen, Tero Kippola, Marjo Heikkilä, Seppo Yrjölä, Vesa Hartikainen, Lucia Tudose, Arto Kivinen, Reijo Ekman, Juhani Hallio, Jarkko Paavola, Marko Mäkeläinen, Tuomo Hänninen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    12 Citations (Scopus)

    Abstract

    In this paper, we describe a spectrum access system (SAS) based Citizens Broadband Radio Service (CBRS) field trial using a live LTE network in the 3.5 GHz band. The latest WInnForum specification guided the implementation of the relevant protocols for SAS operation. Here, we evaluate the performance of a CBRS field trial by using one of the most important performance indicators in a spectrum sharing scenario - the evacuation time. It indicates how rapidly the secondary user relinquishes the shared spectrum band to the primary user. Following the applied protocols, we measure and analyze the time scales for the evacuation and frequency change procedures in a field trial environment. Our work shows that the set time limits for the protection of primary users against interference are realistic when using commercially available mobile networks and equipment. Finally, utilizing knowledge of the latest base station models, we propose ways to reduce the evacuation and reconfiguration time by up to 70%.
    Original languageEnglish
    Title of host publication2017 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017
    PublisherIEEE Institute of Electrical and Electronic Engineers
    ISBN (Electronic)9781509028306
    ISBN (Print)978-1-5090-2830-6
    DOIs
    Publication statusPublished - 5 May 2017
    MoE publication typeA4 Article in a conference publication
    EventIEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017 - Piscataway, United States
    Duration: 6 Mar 20179 Mar 2017

    Conference

    ConferenceIEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017
    Abbreviated titleDySPAN 2017
    CountryUnited States
    CityPiscataway
    Period6/03/179/03/17

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  • Cite this

    Palola, M., Höyhtyä, M., Aho, P., Mustonen, M., Kippola, T., Heikkilä, M., Yrjölä, S., Hartikainen, V., Tudose, L., Kivinen, A., Ekman, R., Hallio, J., Paavola, J., Mäkeläinen, M., & Hänninen, T. (2017). Field trial of the 3.5 GHz citizens broadband radio service governed by a spectrum access system (SAS). In 2017 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2017 [7920760] IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/DySPAN.2017.7920760