The cellular data traffic has been dramatically increased, a typical approach is considering the operation of the Long Term Evolution (LTE) system in the unlicensed spectrum. Although there are a large number of theoretical researches on LTE-U, field trial results are still lacking. In this paper, we build a real time field trial in 5.8GHz unlicensed bands. The typical indoor scenario is deployed and we make field trials to evaluate the performance of LTE-U and Wi-Fi including coverage and capacity. Specifically, a methodology to determine the proper Clear Channel Assessment energy detection (CCA-ED) threshold for LTE-U is proposed to implement the friendly coexistence between LTE-U and Wi-Fi systems. Furthermore, experiments are also provided to validate the feasibility of the suggested method in various scenarios. Test results show that LTE-U can greatly improve the spectrum efficiency and optimize wireless resources. At the same time, a proper CCA- ED threshold is necessary for different systems coexisting friendly and fairly.


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    Titel :

    A Field Trial on Opportunities for Improving the Unlicensed Spectrum Utilization of LTE


    Beteiligte:
    Li, Yan (Autor:in) / Xu, Shaoyi (Autor:in) / Xu, Rongtao (Autor:in) / Li, Hantao (Autor:in) / Li, Zhenyu (Autor:in) / Tang, Wenfang (Autor:in)


    Erscheinungsdatum :

    01.06.2017


    Format / Umfang :

    1322084 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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