立体交通系统通感算一体化关键技术

Key Technology for Integrated Communication Sensing and Computing in Three-Dimensional Transportation System

以无人机、智能网联汽车、道路基础设施等空地平台为载体的立体交通系统是智慧城市综合交通在6G网络中发展的前沿方向。随着海量无线通信终端、智能传感器等物理设备与交通运输环境、载运工具和道路基础设施深度融合,立体交通系统对通信感知的需求日益增长;然而,当前系统的发展受网络体系结构、通信资源、计算资源和感知能力的制约,其信息交互与综合处理能力亟待协同提高。另一方面,通信感知与边缘计算一体化(ISACEC)技术发展及其在空地协同网络中应用,为立体交通系统演进提供了新的推动力。面向立体交通系统应用场景,总结了ISAC-EC技术发展与应用现状,然后构建了空对地、地对空通信感知联合优化模型,给出了通信波束和雷达波束联合设计的关键技术思路;最后,针对典型应用场景开展仿真实验,结果展现了通感算一体化关键技术在立体交通系统中的应用潜力和优势,可为系统发展建设提供指导。

Incorporating unmanned aerial vehicles(UAVs),intelligent connected vehicles,and road infrastructure,three-dimensional transportation systems emerge as a cutting-edge direction in smart city integrated transport development in the 6G network.With the increasing integration of a myriad of wireless communication terminals and smart sensors into the transportation environment,vehicles,and road infrastructure,the demand for communication and sensing in three-dimensional transportation systems is on the rise.However,the development of current systems is hindered by constraints in network architecture,communication resources,computational resources,and sensing capabilities,necessitating a coordinated enhancement in their information exchange and integrated processing capabilities.On the other hand,the progression of integrated sensing and communication with edge computing(ISAC-EC)technologies and their deployment in air-ground cooperative networks furnish new impetus for the evolution of three-dimensional transportation systems.Tailored to the application scenarios of three-dimensional transportation systems,this study recapitulates the current advancements and applications of ISAC-EC technologies,subsequently establishing an air-to-ground and ground-to-air communication sensing joint optimization model,and delineating pivotal technological approaches for the joint design of communication and radar beams.Ultimately,simulation experiments conducted in typical application scenarios elucidate the application potential and advantages of integrated sensing,communication,and computing technologies in three-dimensional transportation systems,offering guidance for future system development and construction.