In this paper, we propose a novel soft interference cancellation scheme considering processing delay for uplink ultra-reliable and low latency communication (URLLC). For URLLC, repetition transmission was specified to satisfy a requirement of reliability. In a conventional scheme, the performance is improved by combining bit log-likelihood ratios (LLRs) at each repetition transmission. Although it is ordinal to secure radio resources for single URLLC user equipment (UE) to avoid severe inter-UE interference (IUI), it is effective to share a radio resource among plural UEs to increase spectrum efficiency. By introducing the soft interference cancelation, the proposed scheme can efficiently suppress the negative impact of IUI while keeping the similar processing delay as the conventional scheme.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Low Latency Interference Cancellation for Uplink URLLC Repetition Transmission


    Contributors:


    Publication date :

    2020-05-01


    Size :

    162456 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Adaptive Repetition Control Using Terminal Mobility for Uplink Grant-Free URLLC

    Ozaku, Shinichi / Shimbo, Yukiko / Suganuma, Hirofumi et al. | IEEE | 2020


    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


    Frequency and Time Spreading for Uplink URLLC Transmission

    Tsai, Shang-Ho Lawrence / Lai, Chia-Hsin / Li, Xiu-Sheng | 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