In December 2019, the 3GPP defined the road-map for Release-17, which includes new features on the operation of New Radio (NR) in millimeter-wave bands with highly directional communications systems, i.e., up to 52.6 GHz. In this paper, a system-level simulation based study on the coexistence of NR-based access to unlicensed spectrum (NR-U) and an IEEE technology, i.e., 802.11ad Wireless Gigabit (WiGig), at 60 GHz bands is conducted. For NR-U, an extension of NR Release-15 based model is used such that the 60 GHz regulatory requirements are satisfied. First, the design and capabilities of the developed open source ns-3 based simulator are presented and then end-to-end performance results of coexistence with different channel access mechanisms for NR-U in a 3GPP indoor scenario are discussed. It is shown that NR-U with Listen-Before-Talk channel access mechanism does not have any adverse impact on WiGig performance in terms of throughput and latency, which demonstrates that NR-U design fulfills the fairness coexistence objective, i.e., NR-U and WiGig coexistence is proven to be feasible.

中文翻译：

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60 GHz 频段中的 NR-U 和 WiGig 共存

2019 年 12 月，3GPP 定义了 Release-17 的路线图，其中包括新无线电 (NR) 在具有高度定向通信系统（即高达 52.6 GHz）的毫米波频段中运行的新功能。在本文中，对基于 NR 的无执照频谱接入 (NR-U) 和 IEEE 技术（即 802.11ad 无线千兆 (WiGig)）在 60 GHz 频段的共存进行了基于系统级仿真的研究。对于 NR-U，使用基于 NR Release-15 模型的扩展，以满足 60 GHz 监管要求。首先，介绍了开发的基于开源 ns-3 的模拟器的设计和功能，然后讨论了 3GPP 室内场景中 NR-U 与不同信道接入机制共存的端到端性能结果。