AMiDAS(Advanced Mobile internet Data Access System)는 북미식 IMT2000의 동기식 이동통신 시스템에서의 단말과 인터넷 망을 연결하는 PDSN(Packet Data Serving Node) 노드의 역할과 유럽식 WCDMA 비동기 GRPS 인터넷 환경에서의 이동통신망과 인터넷 망을 연결하는 GGSN 게이트웨이 역할을 수행하는 동기/비동기 통합 게이트웨이 시스템이다. 본 논문에서는 AMiDAS의 여러 기능 중 비동기 시스템의 GGSN역할의 관점에서 사용자 세션에 대한 효율적인 관리기능의 설계와 구현에 관하여 살펴본다. 실시간으로 인터넷 서비스를 제공하기 위해 이동 통신망과 외부 인터넷 망의 접속을 위해 사용자 세션 정보를 데이터베이스 시스템을 이용하여 AMiDAS를 구성하는 각각의 MNAB 보드와 관련된 세션정보를 이용하여 실시간 사용자 인터넷 서비스 연결방법에 따른 세션 처리 기능을 제공한다.
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