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• LTE Designed by SK Telecom ■ 256 QAM 1) 3-CA & 256 QAM introduced in June 2016, achieving up to 500 Mbps In last June, SK Telecom presented 4.5G, offering up to 500 Mbps by applying 256 QAM to its 3-band LTE-A service. - 3-CA - total blog.naver.com · 2020.04.29