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聊聊华为新推出的无网应急通信
虎嗅APP· 2025-12-01 13:21
以下文章来源于鲜枣课堂 ,作者小枣君 鲜枣课堂 . 专做通信知识科普,小白都能看懂。 本文来自微信公众号: 鲜枣课堂 ,作者:小枣君,题图来自:AI生成 前几天 (11月25日) ,华为正式发布Mate 80系列旗舰手机,吸引了社会各界的广泛关注。 在发布会上,余承东提到了新手机的各项新特性。其中,有一个特性,和我们通信行业密切相关,相 信大家也留意到了,那就是——无网应急通信。 根据老余的介绍,华为的无网分为两种。 一种是基于2.4GHz频段的畅连无网通信,还有一种是基于 700MHz频段的无网应急通信。 前一种,其实和其它手机终端厂商去年提的无网通信比较类似。主要区别在于,华为使用的是 NearLink星闪技术体系,可以打电话、发消息、群对讲,最远可以覆盖7公里。 后一种,是华为强调"首发"的无网应急通信,也是今天文章讨论的重点。 老余说,Mate80系列所搭载的700MHz无网应急通信,可在地震、洪水或野外失联等断网险情下搭建 生命通道,信号覆盖半径超过13公里,可穿透3堵墙。 刚才说了,无网通信确实不是新概念。 所谓"无网通信",并不是"没有网络的通信",而是 "不依赖于外部网络设备"所进行的通信 。 ...
ColorOS支持无网传图,无信号也能传3km,OPPO意欲何为?
3 6 Ke· 2025-08-18 03:45
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]