우리나라 주도의 와이브로 기술은 가장 먼저 4G 고지에 도달한 무선 인터넷 기술로 유망한 차세대 이동통신 기술 중 유력한 주자이다. 모바일 와이맥스로 국제 표준화 되었으며 우리나라를 비롯해 해외 많은 나라에서 구축되고 있다. 긴급 서비스 지원은 대국민 기반 서비스일 뿐 아니라, 다른 통신망의 음성 가입자를 번호이동으로 유인하는데 전제되는 긴요한 서비스이다. 본 논문은 와이브로 망을 이용한 모바일 VoIP 서비스에서 긴급 서비스 지원을 위한 네트워크 구조를 제시한다. 제안되 구조는 국제 호환성을 위해 WiMAX Forum (WMF)에서 표준화한 구조를 기반으로 하되, PSAP과의 인터페이스는 우리나라 긴급 교환망 구조에 무리 없이 연동되도록 고안되었다.
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