CHINA UNICOM(HK:00762) Qi Lu Wan Bao·2025-05-19 08:10Core Insights - Qingdao Unicom has upgraded the wireless network of Qingdao Metro Line 4, enhancing the existing 5G-A network with differentiated exclusive services for dedicated data users [1][3] Group 1: Network Upgrade and Features - The 5G-A network upgrade utilizes the unique large bandwidth advantage of the 3.5G frequency band, employing carrier aggregation technology to significantly increase network speed, achieving peak rates of up to 2Gbps [1] - The upgrade prioritizes resource allocation for exclusive data users, ensuring a smooth experience for activities such as HD video streaming, cloud gaming, video conferencing, and file downloads [1][3] - The network coverage has been comprehensively optimized to ensure seamless 5G-A signal in stations, carriages, and tunnels, addressing traditional signal blind spots and weak coverage issues [5] Group 2: User Experience Enhancements - A new "China Unicom-Qingdao Metro 5G" custom display feature has been introduced, symbolizing exclusive high-quality network services for dedicated data users [3] - Exclusive data users can visually identify their status with a VIP marker on supported devices while using the Qingdao Metro Line 4, enhancing their overall service experience [3]