5G

5G is the fifth generation of cellular network technology and the successor to 4G. In common commercial use, the term refers primarily to mobile networks based on the 3rd Generation Partnership Project (3GPP) 5G system and its New Radio (NR) air interface, which were first specified in 3GPP Release 15. 5G was developed to meet the International Telecommunication Union's IMT-2020 framework for fifth-generation mobile systems. Large-scale commercial deployments began in 2019, including South Korea's national 5G rollout. 5G networks may be deployed in non-standalone mode, using existing LTE core-network infrastructure, or in standalone mode with a dedicated 5G Core.