기존 2G/3G 무선 네트워크에서 많은 네트워크 요소들과 관련된 파라미터들이 수동으로 설정되었다. 네트워크 구성 요소들과 이와 관련된 파라미터들의 설계, 설정, 통합 및 관리 기능은 효율적이고 신뢰성 있는 네트워크 운용을 위하여 매우 중요하다. 그러나, 이들 네트워크 파라미터 조정에는 전문적인 엔지니어의 수작업이 필요하다. 이러한 수작업 과정은 시간이 많이 걸리고 잠재적으로 수작업에 따른 오류 발생 가능성이 있다. 이동 통신 시스템에서 펨토셀 및 차세대 4G 도입이 가시화됨에 따라, 기지국의 설치 및 운용 과정에서 Self-Configuration, Self-Optimization 및 Self-Healing과 같은 자동화 기능을 포함하는 SON 기술에 대한 관심이 높아지고 있다. 본 고에서는 LTE에서의 SON 기술 관련 주요 기술적 내용을 정리하고, 표준화 동향 및 업체 기술 동향에 대하여 살펴보고자 한다.
KSP Keywords
Self-Optimization, Self-configuration
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