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What is 4G? Definition of 4G: Cell Phone Glossary

By Adam Fendelman, About.com

Definition: Following the evolutionary line of cell phone technology standards that has spanned from 1G, 2G, 2.5G to 3G, 4G describes the entirely brave new world beyond advanced 3G networks.

4G, which is also known as “beyond 3G” or “fourth-generation” cell phone technology, refers to the entirely new evolution and a complete 3G replacement in wireless communications.

Just as data-transmission speeds increased from 2G to 3G, the leap from 3G to 4G again promises even higher data rates than existed in previous generations. 4G promises voice, data and high-quality multimedia in real-time (“streamed”) form all the time and anywhere.

Various standardization and regulatory bodies estimate the launch of 4G networks commercially between 2012 and 2015.

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Pronunciation: four-gee
Also Known As: beyond 3G fourth-generation cell phone technology
Alternate Spellings: 4-G
Examples:
4G networks are a complete replacement to advanced 3G cell phone networks.

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