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Применить Всего найдено 3. Отображено 3.
26-04-2016 дата публикации

METHOD FOR CALCULATING PATH COST FOR DYNAMIC ROUTING IN SATELLITE COMMUNICATIONS SYSTEM

Номер: KR101611319B1
Автор: KIM, MOON
Принадлежит: HANWHA THALES CO., LTD.

Disclosed is a method for calculating a path cost for dynamic routing in a satellite communications system. The present invention relates to a method for calculating a satellite communications path cost for operating a dynamic routing protocol, and more particularly, is configured to calculate and derive a cost which reflects the characteristics of satellite communications paths by using information about resource availability and assignment information in a demand assigned multiple access (DAMA) satellite communications network. The present invention is realized in the satellite communications system by a resource assignment server of a satellite network control station, a satellite station modem, and a station router, each of which periodically broadcasts information about resource availability, receives the information and transports the information to the station router, and receives the information and calculates a path cost based on the information, respectively. According to the ...

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Номер записи: 1
22-12-2022 дата публикации

끊김없는 서비스 제공을 위한 QoS 기반 핸드오버 방법

Номер: KR102480566B1
Автор: 김문
Принадлежит: 한화시스템(주)

... 본 발명에 따른 QoS 기반 핸드오버 방법은 단말, 기지국 및 접속 라우터 간의 송수신 대상 데이터 패킷의 특성 정보를 식별하는 단계; 2 계층의 핸드오버 준비 절차를 수행하는 단계; 상기 2 계층의 핸드오버 준비 절차가 수행된 후, 상기 데이터 패킷의 특성 정보에 기초하여 송신 큐를 조정하는 단계; 3 계층의 핸드오버 준비 절차를 수행하는 단계; 상기 3 계층의 핸드오버 준비 절차가 수행된 후, 상기 데이터 패킷의 특성 정보에 기초하여 송신 큐를 조정하는 단계; 상기 3 계층에서의 타겟 기지국으로의 핸드오버를 실행하는 단계; 및 상기 2 계층에서의 타겟 기지국으로의 핸드오버를 실행하는 단계를 포함한다.

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Номер записи: 2
26-04-2016 дата публикации

DYNAMIC ROUTING APPARATUS AND METHOD FOR LINKING SATELLITE COMMUNICATION SYSTEM WITH OSPF

Номер: KR101611281B1
Автор: KIM, MOON
Принадлежит: HANWHA THALES CO., LTD.

Disclosed are dynamic routing apparatus and method for linking a satellite communication system with an open shortest path first (OSPF). The present invention relates to dynamic routing apparatus and method, more specifically, for linking a demand assignment based multiple access satellite communications network with an OSPF routing protocol operating communications network. To be more specific, the present invention relates to a technology of implementing a dynamic routing function with minimized load and delay between a net-control station router of a satellite communications network and a station router by using routing information obtained from routing messages of an OSPF operating communications network. According to the present invention, OSPF, which is a dynamic routing protocol, may be linked to and operated in the satellite communications network. In addition, the linking with a ground station operating OSPF allows the satellite communications network to figure out network configurations ...

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Номер записи: 3