电子学报2025，Vol.53Issue(1)：14-23,10.DOI:10.12263/DZXB.20240595
面向6G的无线信道语义特征及建模
Semantic Characteristics and Modeling of Wireless Channels for 6G
摘要
Abstract
With the development of mobile communication technology,6G(6th-Generation)networks,as the next generation of intelligent digital information infrastructure,will no longer only focus on the transmission and reproduction of signals.Instead,they will need to achieve efficient perception and understanding of the surrounding environment based on the electromagnetic propagation,acquire semantic knowledge to assist intelligent communication agents in prediction,deci-sion,beamforming,and more.Therefore,compared to traditional channel models,improving wireless channel models with the ability to understand,reconstruct,and express the physical environment's semantics has become an important character-istic of intelligent wireless channel models.This paper proposes a method for semantic analysis and modeling of wireless channels,which includes three levels of semantics:state semantics,behavior semantics,and event semantics,corresponding to the instant multipath of the channel,the time-varying trajectory of the channel,and the topological structure of the chan-nel,respectively.In addition,based on the vehicular integrated sensing and communication(ISAC)channel measurement platform,this paper conducts semantic-oriented wireless channel measurements at 28 GHz.The channel semantics are de-composed,identified,and modeled based on the measured data,with a focus on analyzing the multipath distribution charac-teristics of the channel under three different semantics,and completing the semantic-guided channel generation.The results show that the channel semantics model can generate more accurate channels while expressing richer semantic information.The work in this paper explores new methods for intelligent channel modeling at the semantic level,promoting the ability of communication systems to understand and recognize the environment by deeply mining semantic features of wireless chan-nels,thereby improving communication efficiency and quality.关键词
6G/无线信道建模/信道语义/通信感知一体化/车载信道测量Key words
6G/wireless channel modeling/channel semantics/integrated sensing and communication/vehicular channel measurement分类
电子信息工程引用本文复制引用
张正宇,何睿斯,杨汨,张雪剑,戚子羿,元媛,艾渤..面向6G的无线信道语义特征及建模[J].电子学报,2025,53(1):14-23,10.基金项目
国家自然科学基金(No.62271037) National Natural Science Foundation of China(No.62271037) （No.62271037）
