2025년 상업 위성산업은 글로벌 우주경제의 71%를 차지하며, 상업 위성시장 내부에서는 지상부문 54.5%, 위성서비스 34.7%, 위성제조 6.7%, 발사서비스 4.1%로 구성된다. 이러한 시장구조는 위성통신 경쟁력이 위성체 제조뿐 아니라 단말, 칩셋, 게이트웨이, 네트워크 장비, 로밍 플랫폼, 서비스 오케스트레이션으로 이동하고 있음을 보여준다. 표준화 측면에서는 3GPP Release 20이 5G-Advanced와 6G 선행연구를 연결하고, Release 21이 최초의 규범적 6G 작업을 시작할 것으로 예상된다. 본 연구는 시장구조, NTN 표준화, LEO 직접 단말 접속, 다중궤도 구조, AI-native 운용, 주파수 공존, 보안 요구사항을 통합 분석하고 국내 정책 및 R&D 시사점을 제시한다.
Keyword
LEO Satellite(저궤도 위성), 5G Communication(5G 통신), Space Industry Strucutre(우주산업구조), Space R and D Policy(우주 연구개발 정책)
KSP Keywords
5G communication, LEO Satellite, R and D
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