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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    Title :

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


    Contributors:
    Li, Yan (author) / Xu, Shaoyi (author) / Xu, Rongtao (author) / Li, Hantao (author) / Li, Zhenyu (author) / Tang, Wenfang (author)


    Publication date :

    2017-06-01


    Size :

    1322084 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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