工业互联网信道特性与建模研究综述

工业互联网(Industrial Internet of Things, IIoT)是5G及后5G(beyond 5G, B5G)赋能工业制造的应用实例，也是“工业4.0”时代工业生产从制造走向智造的关键基础. IIoT场景的多样性与复杂性为该场景中通信系统的部署带来了挑战，准确刻画IIoT场景中的无线信道特性是该场景中通信系统设计和优化的前提.本文首先对IIoT场景特点进行了分析，其次根据现有文献调研总结了IIoT场景的信道特性，接着介绍了第三代合作伙伴计划(3rd Generation Partnership Project, 3GPP)标准中IIoT场景的信道特性建模方法，最后对未来IIoT场景的信道研究进行了展望.

Overview of research on channel characteristics and modeling in the IIoT scenarios

The Industrial Internet of Things (IIoT) is an application scenario of the 5th Generation Mobile Communication Technology (5G) and beyond 5G (B5G) enabling industrial manufacturing, and it is also the key foundation of industrial production moving from traditional manufacturing to intelligent manufacturing in the “Industry 4.0” era. The variousity and complexity of the IIoT scenarios bring challenges to the deployment of communication systems in IIoT scenario. Accurately describing the characteristics of wireless channel is the premise for the design and optimization of communication systems in the IIoT scenarios. This paper first analyzes the characteristics of the IIoT scenarios, and summarizes the propagation of the IIoT scenarios based on literature survey, then introduces the modeling method of channel characteristic in the IIoT scenarios in the 3rd Generation Partnership Project (3GPP) standard. Finally, the future prospect of channel research in the IIoT scenarios is presented.