history of cell 1g 2g 3g 4g 5g

  • 1g was launched by Nippon Telegraph and Telephone in Tokyo

  • The US approved the first 1G operations

  • 2G was launched under the GSM standard in Finland

  • 3G was launched by NTT DoCoMo in 2001

  • the Blackberry was launched, and many of the features were made possible by 3G connectivity.

  • The launch of the iPhone that also used 3G

  • 4G was first deployed in Stockholm, Sweden and Oslo, Norway

  • Three South Korean carriers – KT, LG Uplus and SK Telecom – rolled out live commercial 5G services last December and promise a simultaneous March 2019 launch of 5G across the country