The South Korean mobile communications market is one of the world's most competitive and innovative. That keeps the pressure on SK Telecom, South Korea's largest mobile service provider, to find way to keep implementing cutting-edge technologies. Editor Tammy Parker recently conducted an email Q&A with Alex Jinsung Choi, executive vice president and head of SK Telecom's ICT R&D division, regarding the operator's roadmaps for LTE-Advanced and 5G. The following is an edited and condensed version of that Q&A.
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