Mobile Phone Access with 3G/4G
Lesson 3: Cellular 3G/4G
Many of you reading this book have a mobile phone that has Internet access. That is, you can check your email, surf the Web, download apps, and watch videos. Most social media addicts rely on their mobile phones, and the Internet access built in to that phone, for most of their tweets and the like. This section touches on the big concepts behind the Internet access technology behind those mobile phones.
Mobile phones use radio waves to communicate through a nearby mobile phone tower. The phone has a small radio antenna, and the provider has a much larger antenna sitting at the top of a tower ...
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