Core Viewpoint - Huawei's Mate 80 series has launched the industry's first 700MHz emergency communication feature, enhancing communication capabilities in disaster scenarios and positioning itself as a leader in integrated communication functions [2][18]. Summary by Sections 1. Introduction of 700MHz Emergency Communication - Huawei announced the Mate 80 series featuring 700MHz emergency communication, capable of penetrating three floors and covering over 13 kilometers, aimed at providing communication during disasters [2][18]. 2. Understanding "No Network Communication" - "No network communication" refers to the ability to communicate without traditional network infrastructure, relying on direct, decentralized connections between devices [2][4]. - This technology has gained attention due to its potential to maintain communication in extreme environments where traditional networks fail [3][21]. 3. Technical Mechanisms - The core principles of no network communication include direct device-to-device (D2D) communication and mesh networking, allowing devices to form ad-hoc networks for data transmission [5][6]. - Devices can communicate directly using protocols like Bluetooth and Wi-Fi Direct, bypassing traditional network infrastructure [5][6]. 4. Market Trends and User Demand - The rise of no network communication is driven by market saturation in traditional hardware features, prompting manufacturers to seek new selling points that enhance user experience [8]. - Increasing outdoor activities and the need for reliable communication in weak network areas have made no network communication a critical feature for consumers [8][21]. 5. Competitor Developments - Other manufacturers like OPPO and Vivo have also introduced their versions of no network communication, showcasing various capabilities such as long-distance communication and emergency SOS features [9][12][14]. - Xiaomi's "Starry No Network Communication" system utilizes a distributed network approach, allowing devices to act as signal relay nodes, enhancing communication stability [14][17]. 6. Future Prospects - The future of no network communication lies in its ability to complement existing cellular networks, providing reliable communication in areas where traditional networks are inadequate [20][22]. - This technology is expected to evolve into a secondary communication channel, ensuring connectivity in extreme conditions and enhancing safety in various applications [21][22].

Core Viewpoint - Huawei's Mate 80 series introduces a new emergency communication feature that operates without external network support, utilizing the 700MHz frequency band for enhanced coverage and reliability in disaster scenarios [3][4][11]. Group 1: Emergency Communication Features - The Mate 80 series supports two types of emergency communication: one based on 2.4GHz for general use and the other on 700MHz specifically for emergency situations [3][4]. - The 700MHz emergency communication can cover a radius of over 13 kilometers and penetrate through three walls, making it suitable for use in disasters like earthquakes and floods [4][15]. - This feature allows for point-to-point communication without relying on traditional network infrastructure, which is crucial in scenarios where conventional networks are down [6][10]. Group 2: Technical Aspects of 700MHz - The 700MHz frequency band is considered a "golden band" for wireless communication due to its strong coverage capabilities, especially in rural areas [12][14]. - Huawei's implementation of this frequency for emergency communication is notable as it is the first instance of a telecom operator directly authorizing a frequency for terminal manufacturers [17]. - The 700MHz band is part of the 5G spectrum, and while it offers excellent coverage, it has limitations in bandwidth and speed compared to higher frequency bands [14][15]. Group 3: Potential Use Cases and Concerns - The emergency communication feature can support temporary communication setups, such as using drones to establish communication links in disaster areas [21]. - There are several unanswered questions regarding the compatibility of this feature across different brands and the operational details for users in emergency situations [33][35]. - The safety and security of this decentralized communication method are also concerns, particularly regarding authentication and potential vulnerabilities [36]. Group 4: Market Implications - The introduction of this technology highlights the growing interest in private protocols among terminal manufacturers, which may offer better performance compared to public standards [36]. - The success of this feature will depend on its real-world applicability and the resolution of compatibility and security issues [36].

Group 1 - The core update of ColorOS 15 includes deep optimization of the Xiao Bu assistant, new smart screen reading, screen content analysis, and deep categorization of album content [1] - The "No Network Chat" feature has been significantly upgraded to support sending text messages, voice messages, and images, expanding its use cases in outdoor environments [3][6] - OPPO's MeshTalk technology enables decentralized communication without relying on traditional network infrastructure, allowing communication within a 3-kilometer range [6][11] Group 2 - MeshTalk operates on a proprietary protocol that requires specific communication chips in devices, limiting its use to compatible devices [8][11] - The technology is not intended to replace network communication but serves as a supplementary method in scenarios with weak signals or during disasters [11][12] - Future potential for MeshTalk includes multi-device connectivity and enhanced privacy, with the possibility of supporting more complex information types beyond images [15][16]