广湛高铁实现全线5G全覆盖

Core Viewpoint - The Guangzhan High-Speed Railway has officially opened, achieving full 5G coverage along its entire line, which is a significant advancement in communication infrastructure for the region [1][2]. Group 1: Infrastructure and Technology - The Guangzhan High-Speed Railway is a crucial part of China's "Eight Vertical and Eight Horizontal" high-speed rail network, with a total length of 401 kilometers [2]. - The railway features complex terrain and eight long tunnels totaling 56 kilometers, presenting challenges for 5G network construction, including site selection and short construction windows [2]. - Guangdong Mobile has formed a cross-disciplinary task force to optimize the placement of base stations and adjust antenna angles, ensuring efficient installation and debugging of equipment [2]. Group 2: Innovative Solutions - The task force has implemented the innovative Pisa antenna technology, which maintains alignment with the railway tracks, effectively addressing coverage issues such as edge points and dead zones [2]. - Techniques such as dynamic power scheduling for 5G devices have been employed to enhance coverage efficiency along the railway [2]. - For the Zhanjiang Bay underwater tunnel, which is 9.72 kilometers long, two low-loss leaky cables and 21 transmission points were used to achieve seamless 5G coverage, ensuring smooth voice calls and clear video streaming [2]. Group 3: Impact on Connectivity - With the opening of the Guangzhan High-Speed Railway, travel time from Guangzhou Baiyun Station to Zhanjiang North Station is reduced to as little as 1 hour and 32 minutes, significantly shortening the distance between the Beibu Gulf urban agglomeration and the Guangdong-Hong Kong-Macao Greater Bay Area [3]. - Guangdong Mobile plans to continue optimizing and upgrading the 5G private network for the Guangzhan High-Speed Railway to provide stable and high-speed communication services for passengers [3].