The embodiment of the invention provides a subway vehicle-ground communication enhancement method and system. The method comprises the following steps: acquiring a first signal characteristic corresponding to a to-be-laid position in a target environment and a second signal characteristic corresponding to the position of a subway vehicle receiving terminal; wherein the first signal characteristic and the second signal characteristic both comprise a reflection characteristic, a refraction characteristic and a multipath transmission characteristic; and determining parameters of the RIS intelligent metasurface product according to the first signal characteristic and the second signal characteristic, the RIS intelligent metasurface product being laid at the to-be-laid position for realizing communication enhancement. According to the subway train-ground communication enhancement method and system provided by the embodiment of the invention, the air interface risk faced by train-ground communication such as air interface multipath effect and high attenuation of high-band network communication is effectively solved, the communication performance is improved on the premise of not changing the existing networking architecture, and stable and reliable network technical support is provided for subway operation.
本申请实施例提供一种地铁车地通信增强方法和系统,方法包括:获取目标环境中待敷设位置对应的第一信号特性和地铁车辆接收终端位置对应的第二信号特性;其中,所述第一信号特征和所述第二信号特性均包括反射特性、折射特性和多径传输特性;根据所述第一信号特征和所述第二信号特性确定RIS智能超表面产品的参数,所述RIS智能超表面产品敷设在所述待敷设位置处,用于实现通信增强。本申请实施例中提供的地铁车地通信增强方法和系统,有效解决了高频段网络通信的空口多径效应、高衰减等车地通信面临的空口风险,在不改变现有组网架构的前提下改善通信性能,为地铁运营提供稳定可靠的网络技术支撑。
Subway train-ground communication enhancement method and system
地铁车地通信增强方法和系统
2022-11-25
Patent
Elektronische Ressource
Chinesisch
IPC: | H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04B TRANSMISSION , Übertragung / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
Subway train ground broadcast communication equipment
Europäisches Patentamt | 2020
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