Optimal 3GPP Fairness Parameters in 5G NR Unlicensed (NR-U) and WiFi Coexistence

The fifth-generation networks, designed to provide a better quality of service and spectrum utilization, are rapidly being deployed across the world. 3GPP has proposed a fairness criterion, referred to as "3GPP fairness," for the coexistence of 5G New Radio in unlicensed spectrum (NR-U) an...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2023-04, Vol.72 (4), p.5373-5377
Main Authors: Kakkad, Yashraj, Patel, Dhaval K, Kavaiya, Sagar, Sun, Sumei, Lopez-Benitez, Miguel
Format: Article
Language:English
Subjects:
3GPP
3GPP fairness
5G mobile communication
5G NR-U
cellular
coexistence
Optimization
Parameters
Quadratic programming
Quality of service architectures
resource management
spectrum sharing
Steady-state
Throughput
Tuning
WiFi
Wireless fidelity
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Summary:The fifth-generation networks, designed to provide a better quality of service and spectrum utilization, are rapidly being deployed across the world. 3GPP has proposed a fairness criterion, referred to as "3GPP fairness," for the coexistence of 5G New Radio in unlicensed spectrum (NR-U) and WiFi in Release 16. In this correspondence, we derive an analytical expression to determine if the 3GPP fairness is achieved in a given network configuration. We model achieving the 3GPP fairness as an optimization problem and show how to use Sequential Quadratic Programming to find the optimal 5G NR-U parameters from a pre-decided range. We test the optimizer in various conditions and inspect the effect of various parameters. Our results reveal that the optimizer is able to predict the best possible parameters for 3GPP fairness and therefore the proposed method proves useful for tuning 5G NR-U parameters during their coexistence with WiFi.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2022.3222964