Analysis of High-Reliable and Low-Latency Communication Enablers for New Radio Unlicensed

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Abstrakt

In this paper, the performance impact of several high-reliable and low-latency communications technology enablers in the unlicensed spectrum for standalone operation is evaluated. Firstly, a comparison between MulteFire (MF) and New Radio-Unlicensed (NR-U) is established. It is shown that higher sub-carrier spacings and shorter processing times provide clear latency reduction benefits. Additionally, different transmission time intervals (TTI) durations are evaluated. Shortening the TTI duration decreases the latency by a factor of 5.75 at 99.99% reliability and reduces the uplink Listen Before Talk (LBT) blocking probability by 18%. The possibility of having multiple switching points during the frame is also evaluated. It is concluded that having multiple switching points provides a latency reduction mainly due to the reduction of the number of channel accesses and the reduced gaps within the frame. A time-diversity technique to cope with high uplink LBT blocking probability is also evaluated. By combining the aforementioned features, a latency reduction factor of 31 is achieved when optimized NR-U and MulteFire performances are compared.

OriginalsprogEngelsk
Titel2020 IEEE Wireless Communications and Networking Conference (WCNC)
Antal sider6
ForlagIEEE
Publikationsdato19 jun. 2020
Artikelnummer9120497
ISBN (Trykt)978-1-7281-3107-8
ISBN (Elektronisk) 978-1-7281-3106-1
DOI
StatusUdgivet - 19 jun. 2020
Begivenhed2020 IEEE Wireless Communications and Networking Conference (WCNC) - Seoul, Sydkorea
Varighed: 25 maj 202028 maj 2020

Konference

Konference2020 IEEE Wireless Communications and Networking Conference (WCNC)
LandSydkorea
BySeoul
Periode25/05/202028/05/2020
NavnIEEE Wireless Communications and Networking Conference, WCNC
ISSN1525-3511

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  • Citationsformater

    Cuevas, R. M., Rosa, C., & Pedersen, K. I. (2020). Analysis of High-Reliable and Low-Latency Communication Enablers for New Radio Unlicensed. I 2020 IEEE Wireless Communications and Networking Conference (WCNC) [9120497] IEEE. IEEE Wireless Communications and Networking Conference, WCNC https://doi.org/10.1109/WCNC45663.2020.9120497