论文标题
5G高级的室内定位：通过载体相增强的挑战和解决方案的挑战和解决方案
Indoor Positioning in 5G-Advanced: Challenges and Solution towards Centimeter-level Accuracy with Carrier Phase Enhancements
论文作者
论文摘要
在稳健的连接性之后，精确定位正在发展为5G服务产品的创新组成部分，用于具有挑战性室内无线电环境的工业用例和垂直行业。在这个方向上，3GPP REL-16标准是指定关键创新的转折点，然后在Rel-17和Rel-18中提高。在本文中，我们详细介绍了5G定位框架，测量和程序，然后将重点转移到Rel-18中最近确定的载流相（CP）测量值，作为基于时间和角度的定位方法的互补测量。我们讨论了利用CP的相关挑战和潜在解决方案，包括整数歧义，多径灵敏度和信号传导方面。此外，我们研究了相结合的参考信号如何使用逼真的模拟来对抗嘈杂的相位测量，以实现室内工厂（INF）场景中的厘米级别的准确性。
After robust connectivity, precise positioning is evolving into an innovative component of 5G service offerings for industrial use-cases and verticals with challenging indoor radio environments. In this direction, the 3GPP Rel-16 standard has been a tipping point in specifying critical innovations, followed by enhancements in Rel-17 and Rel-18. In this article, we elaborate on the 5G positioning framework, measurements, and procedures before shifting the focus mainly to recently identified carrier-phase (CP) measurements in Rel-18 as a complementary measure for time- and angular-based positioning methods. We discuss the associated challenges and potential solutions for exploiting CP, including integer ambiguity, multipath sensitivity, and signaling aspects. Furthermore, we study how phase-continuous reference signaling can counter noisy phase measurements using realistic simulations to achieve centimeter-level accuracy in indoor factory (InF) scenarios.
