νð ϴ ̵ ó Ѿ 繰, 繰 繰 ϴ ô밡 Ǿ. ̵ 1980 30 Ⱓ ϸ鼭 츮 ũ ϰ ȸ ȭȰ ū ȭ Դ. CDMA ۵ ̵ 3, 4, 5 ̵ ϰ IoT 繰 ͳ ϸ鼭 츮 Ȱ İ ο ȭ âϰ ִ. ̵ ϸ ο ȭڵ带 ȸ Ǿ. ̵ ϴ ƴ϶ ڿԵ ȸ غ ϴ л鿡Ե Ǿ.
б ڰа л, , ڻ Ҵ(йڻ). ѱſ, SKڷ, ż, LGڷ 16Ⱓ ̵Ű о߿ ϸ鼭 CDMA, IMT-2000, 4 ̵ Ͽ. 2001 ź IT ǥȭ 100Ρ Ǿ, 2006 ź ǥâ Ͽ. ȸ ļ å ȸ , ѱ ITU-R ȸ , TTA ̵ű IMT-Advanced ǹ , ļ ̿мȸ ڹ ϰ ִ. 2003 ûȭ ̵Ű ϰ ִ
CHAPTER 1 CHAPTER 2 Ŀ ļ CHAPTER 3 ĸ ̿ ż CHAPTER 4 귯 ̵ CHAPTER 5 ̵ CHAPTER 6 3 ̵ CHAPTER 7 4 ̵ CHAPTER 8 LTE LTE-Advanced CHAPTER 9 5 ̵