New radio (NR) positioning in the Third Generation Partnership Project (3GPP) Release 18 (Rel-18) enables 5G-advanced networks to achieve ultra-high accuracy positioning without dependence on global navigation satellite systems (GNSS) with key enablers such as the carrier phase positioning technique, standardized for the first time in a cellular communications standard and setting a new baseline for future generations. In addition, Rel-18 NR supports positioning functionalities for reduced capability (RedCap) user equipment and bandwidth aggregation for positioning measurements. Moreover, the low power solutions are designed for low power high accuracy positioning use cases. Lastly, sidelink-based positioning is introduced in Rel-18. This article constitutes a comprehensive treatment of the Rel-18 NR positioning enhancements crucial for the development of next-generation networks.

翻译：第三代合作伙伴计划（3GPP）Release 18（Rel-18）中的新无线电（NR）定位技术使5G-Advanced网络能够在不依赖全球导航卫星系统（GNSS）的情况下实现超高精度定位，其关键使能技术包括载波相位定位技术——该技术首次在蜂窝通信标准中被标准化，并为未来世代设定了新基准。此外，Rel-18 NR支持针对能力缩减（RedCap）用户设备的定位功能以及用于定位测量的带宽聚合。同时，针对低功耗高精度定位应用场景设计了低功耗解决方案。最后，Rel-18引入了基于侧行链路的定位。本文全面阐述了Rel-18中对于下一代网络发展至关重要的NR定位增强技术。