Lesson 7 of 81973–today7 min
Mobile networks from 1G to 5G
On 3 April 1973 Martin Cooper, a Motorola engineer, made a call from a prototype handheld phone weighing about 1.1 kg. He chose to call his rival, Joel Engel, a researcher at Bell Labs.
It took another decade for the public to get one. Since then mobile networks have been rebuilt roughly every ten years, and each generation solved the problem the last one could not.
The rest of this lesson is part of Pro
Create a free account to read the first lesson of every path, and go Pro for the rest.
Sources
- Happy anniversary, mobile phone — IEEE Communications Society
- Thirty years on from the call that transformed how we communicate — Nokia
- World's first 4G/LTE network goes live today in Stockholm — Ericsson
- ITU agrees on key 5G performance requirements for IMT-2020 — TelecomTV