knol2go knol
The Generations of Mobile Communication Networks
移动通信网 yí dòng tōng xìn wǎng


1G - First Generation
1979
analog voice

2G - Second Generation
1989
digital voice and data
make calls, send text and images
SMS - simple message service

3G - Third Generation
2001
mobile web standards
web capabilities
mobile smartphones

4G - Fourth Generation
2009
publicly available LTE - Long Term Evolution
the Internet is defined by mobile devices
streaming services

5G - Fifth Generation
2019
full duplex
beamforming
millimeter radio waves
very high frequency spectrum
(30GHz - 300GHz)
use of small cells
massive MIMO (Multiple Input Multiple Output)



If this knol is helpful, please Like and Share it. Thanks.



Share this page via Whatsappknol2go knol

knol2go knolknol2go knolsemail usweibo/knol2gofacebook.com/knol2gotwitter.com/knol2goknol2go knol
knol2go knol