Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments

Roberto Maldonado; Claudio Rosa; Klaus I. Pedersen

doi:10.1109/VTC2021-Spring51267.2021.9449023

Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments

Roberto Maldonado, Claudio Rosa, Klaus I. Pedersen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

4 Citations (Scopus)

Abstract

Unlicensed spectrum operation mandates the performance of channel access mechanisms to ensure the absence of transmissions by other unlicensed radio access technologies. Packets are prone to be impacted by these mechanisms as transmissions might be delayed. In this paper, we first analyse the impact of unexpected and sporadic IEEE 802.11ax interference on a New Radio-Unlicensed (NR-U) deployment in an industrial environment. Given the need for improvement in such scenarios, frequency diversity techniques are proposed to fulfil tight latency-reliability requirements and combat the impact of 802.11ax interference. A multi-channel NR-U system in which, at least, one of the channels is free of IEEE 802.11ax interference is studied. The paper shows that multi-channel techniques with a lack of flexibility in the channel selection exhibit modest benefits in scenarios with the presence of sporadic interference. A scheme with flexible channel selection is proposed and verified as the preferred option for stringent latency and reliability applications.

Original language	English
Title of host publication	2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings
Publisher	IEEE (Institute of Electrical and Electronics Engineers)
Publication date	Apr 2021
Article number	9449023
ISBN (Print)	978-1-7281-8965-9
ISBN (Electronic)	978-1-7281-8964-2
DOIs	https://doi.org/10.1109/VTC2021-Spring51267.2021.9449023
Publication status	Published - Apr 2021
Event	93rd IEEE Vehicular Technology Conference, VTC 2021-Spring - Virtual, Online Duration: 25 Apr 2021 → 28 Apr 2021

Conference

Conference	93rd IEEE Vehicular Technology Conference, VTC 2021-Spring
City	Virtual, Online
Period	25/04/2021 → 28/04/2021
Sponsor	Huawei Technologies Co., Ltd., Nokia Siemens Networks

Series	I E E E V T S Vehicular Technology Conference. Proceedings
ISSN	1550-2252

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

802.11ax
frequency diversity
listen before talk
new radio unlicensed
URLLC

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10.1109/VTC2021-Spring51267.2021.9449023

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Cite this

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title = "Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments",

abstract = "Unlicensed spectrum operation mandates the performance of channel access mechanisms to ensure the absence of transmissions by other unlicensed radio access technologies. Packets are prone to be impacted by these mechanisms as transmissions might be delayed. In this paper, we first analyse the impact of unexpected and sporadic IEEE 802.11ax interference on a New Radio-Unlicensed (NR-U) deployment in an industrial environment. Given the need for improvement in such scenarios, frequency diversity techniques are proposed to fulfil tight latency-reliability requirements and combat the impact of 802.11ax interference. A multi-channel NR-U system in which, at least, one of the channels is free of IEEE 802.11ax interference is studied. The paper shows that multi-channel techniques with a lack of flexibility in the channel selection exhibit modest benefits in scenarios with the presence of sporadic interference. A scheme with flexible channel selection is proposed and verified as the preferred option for stringent latency and reliability applications.",

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doi = "10.1109/VTC2021-Spring51267.2021.9449023",

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}

Maldonado, R, Rosa, C & Pedersen, KI 2021, Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments. in 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings., 9449023, IEEE (Institute of Electrical and Electronics Engineers), I E E E V T S Vehicular Technology Conference. Proceedings, 93rd IEEE Vehicular Technology Conference, VTC 2021-Spring, Virtual, Online, 25/04/2021. https://doi.org/10.1109/VTC2021-Spring51267.2021.9449023

Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments. / Maldonado, Roberto; Rosa, Claudio; Pedersen, Klaus I.
2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings. IEEE (Institute of Electrical and Electronics Engineers), 2021. 9449023 (I E E E V T S Vehicular Technology Conference. Proceedings).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

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AU - Maldonado, Roberto

AU - Rosa, Claudio

AU - Pedersen, Klaus I.

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N2 - Unlicensed spectrum operation mandates the performance of channel access mechanisms to ensure the absence of transmissions by other unlicensed radio access technologies. Packets are prone to be impacted by these mechanisms as transmissions might be delayed. In this paper, we first analyse the impact of unexpected and sporadic IEEE 802.11ax interference on a New Radio-Unlicensed (NR-U) deployment in an industrial environment. Given the need for improvement in such scenarios, frequency diversity techniques are proposed to fulfil tight latency-reliability requirements and combat the impact of 802.11ax interference. A multi-channel NR-U system in which, at least, one of the channels is free of IEEE 802.11ax interference is studied. The paper shows that multi-channel techniques with a lack of flexibility in the channel selection exhibit modest benefits in scenarios with the presence of sporadic interference. A scheme with flexible channel selection is proposed and verified as the preferred option for stringent latency and reliability applications.

AB - Unlicensed spectrum operation mandates the performance of channel access mechanisms to ensure the absence of transmissions by other unlicensed radio access technologies. Packets are prone to be impacted by these mechanisms as transmissions might be delayed. In this paper, we first analyse the impact of unexpected and sporadic IEEE 802.11ax interference on a New Radio-Unlicensed (NR-U) deployment in an industrial environment. Given the need for improvement in such scenarios, frequency diversity techniques are proposed to fulfil tight latency-reliability requirements and combat the impact of 802.11ax interference. A multi-channel NR-U system in which, at least, one of the channels is free of IEEE 802.11ax interference is studied. The paper shows that multi-channel techniques with a lack of flexibility in the channel selection exhibit modest benefits in scenarios with the presence of sporadic interference. A scheme with flexible channel selection is proposed and verified as the preferred option for stringent latency and reliability applications.

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ER -

Maldonado R, Rosa C, Pedersen KI. Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments. In 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings. IEEE (Institute of Electrical and Electronics Engineers). 2021. 9449023. (I E E E V T S Vehicular Technology Conference. Proceedings). doi: 10.1109/VTC2021-Spring51267.2021.9449023

Multi-link Techniques for New Radio-Unlicensed URLLC in Hostile Environments

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Keywords

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