2 1 Shi Ji Jing Ji Bao Dao·2025-12-24 10:06Core Viewpoint - The successful completion of the Guangzhan high-speed railway backbone optical cable project marks a significant advancement in communication infrastructure, enhancing connectivity between the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan Free Trade Port, while demonstrating China Unicom's commitment to high-quality economic development and major infrastructure construction [1][2]. Group 1: Project Overview - The Guangzhan high-speed railway optical cable project, led by Guangdong Unicom, achieved full optical connectivity over a distance of 401 kilometers in just 93 days, overcoming technical challenges posed by a bridge-tunnel ratio exceeding 79% [1]. - This project is a crucial part of the national "Eight Vertical and Eight Horizontal" high-speed railway network, serving as a vital link for domestic and international business transmission among Guangdong, Guangxi, and Hainan provinces [1][2]. Group 2: Strategic Importance - The project strengthens China Unicom's position in the inter-provincial trunk communication market and supports the digital economy's collaborative development in the Guangdong, Guangxi, and Hainan regions [2]. - Guangdong Unicom has completed over 4,000 kilometers of high-speed/high-speed railway backbone optical cable deployment, establishing a full optical transmission network characterized by ultra-large bandwidth, ultra-low latency, and ultra-high reliability [2]. Group 3: Future Plans - Guangdong Unicom aims to continue supporting national strategies through technological innovation and quality service, enhancing communication network layout and computational network support capabilities to facilitate high-quality regional economic development [3].