
To address challenges such as poor in-carriage network signals, high construction and O&M costs for 5G networks, limited installation space, and complex networking in China's high-speed rail, we participated in the "5G Public Network Signal Integration Project for High-Speed Rail and EMU Wi-Fi Systems" by China Railway JiXun Technology Co., Ltd. We developed core equipment and system products, including onboard 5G near-end equipment, cascading devices, pRUs, and smart gateways, and have conducted on-board testing on CR200J and CR450AF EMUs.