5G new radio and LTE uplink coexistence

Toni Levanen, Karri Ranta-Aho, Jorma Kaikkonen, Sari Nielsen, Kari Pajukoski, Markku Renfors, Mikko Valkama

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

    4 Citations (Scopus)
    883 Downloads (Pure)

    Abstract

    By the introduction of the fifth generation (5G) mobile communication networks and its physical layer entitled as new radio (NR), the question of link performance in coexistence scenario between the 5G NR and fourth generation (4G) mobile communication networks based on long term evolution (LTE) has been raised. In this paper, we evaluate the uplink (UL) performance of 5G NR and LTE links operating within a common channel. The need for subcarrier shift in 5G NR UL similar to LTE UL is addressed and analyzed, and the effect of guard band (GB) in frequency domain between 5G NR and LTE is studied. It is shown that with a single physical resource block GB no subcarrier shifting is required in 5G NR, as long as the power control accuracy is sufficient, in which case LTE performance is unaffected. From the 5G NR performance point of view no GB is required.

    Original languageEnglish
    Title of host publication2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
    PublisherIEEE
    Pages1-6
    Number of pages6
    ISBN (Electronic)9781538617342
    DOIs
    Publication statusPublished - 8 Jun 2018
    Publication typeA4 Article in conference proceedings
    EventIEEE Wireless Communications and Networking Conference -
    Duration: 1 Jan 1900 → …

    Publication series

    Name
    ISSN (Electronic)1558-2612

    Conference

    ConferenceIEEE Wireless Communications and Networking Conference
    Period1/01/00 → …

    Keywords

    • 5G NR
    • Coexistence
    • Link performance
    • LTE
    • PHY layer
    • Power control

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • General Engineering

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