针对公网盲区的宽窄带融合长距无线专网通信技术研究

【摘要】 随着无线专网通信在公共安全、轨道交通等行业的快速发展，以支持语音业务为主的数字窄带集群已无法满足图像、视频、人工智能应用等宽带业务需求。本文针对公网盲区通信难题，基于宽窄带融合无线通信技术，构建支持长远距离实时传输的无线专网通信系统。主要研究内容包括专用通信基站及智能网关物理层传输技术、基于时空相关性的云-边-端协同宽窄带融合信号冗余消除技术、宽窄带融合智能网关的开发及应用平台等三个方面，进而实现无网络覆盖区域的长距可靠、实时稳定宽带通信，满足公共安全、应急管理、交通等行业应用需求。更多还原

【Abstract】 With the rapid development of wireless private communication network in public safety, rail transit and other industries, digital narrowband trunking systems mainly supporting voice services are no longer meet the needs of broadband multimedia services such as images, videos, and artificial intelligence applications. To address the communication issues for public network coverage gap, we establish a wireless private network communication system to support long-distance and real-time transmission based on wideband-narrowband fused wireless communication technology. Key research activities are carried out from three aspect: dedicated communication base stations and physical layer transmission technology of intelligent gateways, cloud-edge-end collaborated wideband-narrowband signal redundancy elimination technology based on spatiotemporal correlation, and wideband-narrowband fused intelligent gateways and application platform. Finally, long-distance, reliable, realtime and stable wideband communications are achieved in areas without public network coverage, meeting the application requirements of public safety, emergency management, and transportation.更多还原