SK Telecom ra mắt mạng 4G đầu tiên trên thế giới
Cập nhật: 11:46 02/07/2013 GMT+7
Hàn Quốc có lẽ là quốc gia đầu tiên được tận hưởng tốc độ băng rộng di động 4G thực sự. Nhà mạng SK Telecom, hôm 26-6, tuyên bố tung ra mạng LTE-Advanced (LTE-A) đầu tiên trên thế giới...
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