우리나라 경제 성장의 한 축인 IT 산업의 발전에는 이동통신 서비스 산업이 중요한 비중을 차지하고 있다. 본 고에서는 2G, 3G 이후, 최근 LTE 서비스에 이르기까지 기술 방식별 가입자수, 매출액, 데이터 트래픽의 변화를 분석하고, 3G와 4G 주파수 할당과 경매 결과에 따른 주파수 사용 현황과 급증하는 데이터 서비스를 수용하기 위해 필요한 주파수 자원 확보 계획을 진단한다. 4G 이후 LTE 가입자와 데이터 트래픽이 급격하게 증가하고 있으며, SKT, KT, LGU+ 사업자별로 시장점유율과 주파수 확보량은 각각 50:31:19%, 40:35:25%이다. 향후 10년 후에는 현재 보다 20배 이상의 트래픽이 발생할 것으로 예측되며, 이를 위해 추가적으로 1GHz 대역폭 이상의 주파수 자원이 요구된다.
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