We propose a new transmission scheme for uplink URLLC systems, which can coexist with the eMbb transmission while can still meet the reliability and latency requirements of the URLLC. The proposed scheme spreads the data in both time and frequency domains. The performance of the proposed system is analyzed and closed form expressions are derived. From the analytical results, we optimize the parameters including constellation levels, spreading length and transmit power to maximize the sum rate of the URLLC UE. Simulation results show that the proposed solution significantly improve the performance and the data rate can be up to 8.9 Mpbs in the LTE TDL-C nominal channel with co-existence and achieved URLLC requirements.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Frequency and Time Spreading for Uplink URLLC Transmission


    Beteiligte:


    Erscheinungsdatum :

    01.05.2020


    Format / Umfang :

    209894 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Low Latency Interference Cancellation for Uplink URLLC Repetition Transmission

    Nakamura, Osamu / Hamaguchi, Yasuhiro / Takahashi, Takumi et al. | IEEE | 2020


    Enhancing URLLC Uplink Configured-grant Transmissions

    Le, Trung-Kien / Salim, Umer / Kaltenberger, Florian | IEEE | 2021


    Performance Evaluation of Grant-Free Transmission for Uplink URLLC Services

    Wang, Chao / Chen, Yan / Wu, Yiqun et al. | IEEE | 2017


    Adaptive K-Repetition Transmission Employing Site Diversity Reception for 5G NR Uplink Grant-Free URLLC

    Dataesatu, Arif / Sanada, Kosuke / Hatano, Hiroyuki et al. | IEEE | 2023


    Uplink Contention Based Transmission with Non-Orthogonal Spreading

    Zhao, Zhuyan / Miao, Deshan / Zhang, YuanTao et al. | IEEE | 2016