5g 3g-阿里云

【无线网络】下载速度：2G、3G、4G和5G到底意味着什么？

您可以使用2G、3G、4G或5G连接在智能手机上访问互联网。在移动互联网下载速度方面，经常使用2G、3G、4G和5G等术语。参考四代不同的移动技术，每一代都提供了截然不同的下载速度。旧的2G连接提供了大约0.1Mbit/s的下载速度，在最先进的3G网络上，这个速度会上升到8Mbit/s左右。在英国，...

频谱的故事：从模拟信号到3G再到如今的5G网络

前言：从电报到5G通讯，实际上是个关于频谱的故事，100多年来，如何更有效率的利用频谱，如何在有限频谱中获得更高的传输率，成为无线通讯领域众多天才和企业巨头们持续攻克的目标。电话、电报、电视、网络、手机等深刻改变人类社会发展进程的发明，精确的折射出了人类掌握和使用频谱的能力。今天，我们要回归到我...

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更新时间 2024-03-06 12:02:23

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