표 4. | Table 4. 연대별 전파 비즈니스 확장 | Chronological classification of new radio business.

Years	Before 1980	1980～1990	2000～2010	2010～2015	After 2015
Radio business	Wireless telegraph (1910) Radio broad-casting (1927) TV (1956) Car phone (1961)	Color TV (1980) Pager (1982) Analog mobile phone AMPS (1984) CDMA (1996) TRS	3G mobile phone W-CDMA (2003) Satellite broadcast (2002) Satellite DMB (2005) Terrestrial DMB (2005) WiBro (2007) Blutooth GPS RFID	LTE Mobile comm. (2012) Digital TV (2013) 4G mobile comm. (2012) E-WiBro u-Health 3D GPS USN DSRC Connected CAR M2M/IoT UAS	LTE mobile comm. (2012) 5G UHD-TV IoT Wearable device Wireless medical care Healthcare Robot UAV/UAS Wireless charging Autonomous car Connected car Smart grid Smart home Smart factory Smart farm Smart city