Physical Layer Enhancements for Ultra-Reliable Low-Latency Communications in 5G New Radio Systems

Hyunho Lee, Young Chai Ko

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    Ultra-reliable low-latency communications (URLLC) is one of three main usage scenarios in the fifth generation (5G) cellular networks, which is characterized by extremely stringent latency and reliability requirements to support a diverse set of mission-critical applications. The Third Generation Partnership Project (3GPP) has conducted standardization activities targeting URLLC services in New Radio (NR) Releases 15 and 16. This article describes physical layer enhancements related to URLLC for 5G NR specified in 3GPP, offering comprehensive insights into the key features with their design principles. In addition, we summarize the recent status of ongoing discussions at NR release 17 regarding further improvements for URLLC.

    Original languageEnglish
    Pages (from-to)112-122
    Number of pages11
    JournalIEEE Communications Standards Magazine
    Volume5
    Issue number4
    DOIs
    Publication statusPublished - 2021 Dec 1

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (NRF- 2020R1A4A1019628).

    Publisher Copyright:
    © 2017 IEEE.

    ASJC Scopus subject areas

    • Safety, Risk, Reliability and Quality
    • Computer Networks and Communications
    • Law
    • Management of Technology and Innovation

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