SK Telecom has successfully tested LTE-Advanced (LTE-A) five-band carrier aggregation (CA) on its commercial network. SK Telecom’s bandwidth resources as of February 2017 are 10MHz bandwidth in the 800MHz band, 20MHz bandwidth in the 1.8GHz band, 10MHz bandwidth in the 2.1GHz band, 10MHz + 20 MHz bandwidths in the 2.6Ghz band.
SK Telecom and Nokia have announced joint development of “Mission-Critical Push-To-Talk (MCPTT) solution, which is a next-generation push-to-talk communications technology over VoLTE, and demonstrated the solution at Nokia's Research and Development Center in Kraków, Poland.
Ericsson, Qualcomm Technologies, Inc., a subsidiary of Qualcomm Incorporated, and SK Telecom plan to conduct interoperability testing and over-the-air field trials based on 5G New Radio (NR) standards being developed based on specifications in 3GPP.
South Korea's SK Telecom has signed a Memorandum of Understanding (MOU) with Nokia on January 21, 2015, to work together to lead the development and verification of the fifth-generation (5G) mobile network technologies.
South Korea's operator SK Telecom has successfully commercialized 2G and 3G services through LTE network. Named ‘2G/3G over LTE,’ the technology enhances the stability of 2G/3G mobile networks by utilizing LTE network as backhaul instead of fixed-line 2G/3G infrastructure.
Expecting the era of 5G to arrive in 2020, the SK Telecom white paper outlines analysis, direction and methodologies of 5G network explaining vision, core technologies, services, requirements and spectrum.
SK Telecom and Ericsson have successfully demonstrated the Elastic Cell technology on July 21. According to SK Telecom, Elastic Cell is expected to become a key technology for 5G. Demonstrating data transfer rate improved by up to 50 percent at the cell-edge, SK Telecom aims to commercially launch the technology by 2016.