华为Mate 80首发700M无网应急通信功能 手机也能成为救援“对讲机”

Core Viewpoint - Huawei has launched the Mate 80 series smartphones featuring the industry's first 700MHz emergency communication function, enabling rescue communication over a distance of up to 13 kilometers and through three floors of concrete [1][3]. Group 1: Technology Implementation - The emergency communication function operates without relying on cellular networks, Wi-Fi, or satellites, allowing direct point-to-point connections between devices for voice, text, or location information transmission [1][2]. - The core of the no-network communication technology is decentralized self-organizing network technology, utilizing the 700MHz frequency band for signal transmission and Mesh technology to turn each phone into an intelligent node [1][3]. Group 2: Advantages of 700MHz Frequency - The 700MHz frequency band offers significant advantages, including strong wide-area coverage, effective penetration through buildings, and excellent stability in high-speed scenarios [3]. - Testing has shown that the technology can maintain communication over a distance of 13 kilometers and penetrate three walls, ensuring clear communication even in severe conditions like being buried under 1.5 meters of concrete [3]. Group 3: Value and Applications - The primary value of no-network communication lies in enhancing public safety and providing critical communication support in emergency, firefighting, and exploration scenarios [4]. - This technology serves as a "last backup" in extreme environments where infrastructure is compromised, addressing the core issue of "information islands" in emergency rescue situations [4]. Group 4: Market Penetration and Future Prospects - The successful implementation of no-network communication technology requires a "network effect," necessitating a sufficient number of supporting devices in a given area to form an effective Mesh network [5]. - Huawei plans to open the 700MHz no-network emergency communication function as a system-level feature, potentially leading to industry standards and broader user benefits [5].