http://itsit.kr/90180700685
http://msds.tistory.com/27
http://blog.naver.com/johnlee08/162155678
http://en.wikipedia.org/wiki/List_of_LTE_networks
http://en.wikipedia.org/wiki/E-UTRA
http://www.netmanias.com/en/?m=view&id=reports&no=6060
http://www.netmanias.com/en/?m=view&id=reports&no=6459&vm=pdf

https://mirror.enha.kr/wiki/대한민국의 이동통신 주파수

우리나라 3개 통신사 통신규격 정리

2G GSM
LG U+ 1.8 Ghz (CDMA2000) 10 + 10
SK Tworld 800 Mhz (WCDMA) 10 + 10
3G WCDMA
SK Tworld (b1) 2.1 Ghz (WCDMA) 30 + 30
KT Olleh (b1) 2.1 Ghz (WCDMA) 10 + 10
4G LTE(cat.3, cat.4, cat.6 launch date)
LG U+ (b5) 850 Mhz LTE-FDD, (2011,2013,2014) (메인) 10 + 10
  (b1) 2.1 Ghz LTE-FDD, (2012,2013,2014) 10 + 10
  (b7) 2.6 Ghz LTE-FDD, (2013,2013,2014) 20 + 20
SK Tworld (b5) 850 Mhz LTE-FDD, (2011, 2013, 2014) (메인) 10 + 10
  (b3) 1.8 Ghz LTE-FDD, (2012, 2014, 2014) 15 + 20
  (b1) 2.1 Ghz LTE-FDD, (2015, N/A, 2015) 10 + 10
KT Olleh (b20) 800 Mhz LTE-FDD 5 + 5 (Not using)
  (b8) 900 Mhz LTE-FDD, (2013, N/A, 2014) 10 + 10 (RFID 간섭)
  (b3) 1.8 Ghz LTE-FDD, (2012, 2013, 2014) (메인) 15 + 20
  (b1) 2.1 Ghz LTE-FDD, (2015, 2015, 2015) 10 + 10

Cat.3 = 75Mbps with 10MHz
Cat.4 = 150Mbps with 20MHz
Cat.6 = 225Mbps with 30MHz

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