Abstract:
본 발명은 망 종단에서 사용자 측면 서비스 품질(Quality of Service : QoS)을 기반으로 사용자 단말이 주도적으로 전송 경로를 결정하는 방법 및 장치에 대한 것으로서, 본 발명에서 사용자 단말은 현재 전송 경로에 대해 망 종단에서 사용자 측면 서비스 품질을 측정하고, 상기 측정된 사용자 측면 서비스 품질이 요구되는 서비스 품질을 만족하는 지 판단하며, 상기 측정된 사용자 측면 서비스 품질이 요구되는 서비스 품질을 만족하지 못하는 경우 정해진 기준에 따라 접속 가능한 다른 전송 경로를 결정한다.
Abstract:
PURPOSE: A group handover method of a broadband wireless communication system supporting a mobile relay station and a device thereof are provided to enable a mobile relay station to perform handover instead of terminals. CONSTITUTION: Mobile relay stations(310,312) transmit a measurement report message to a serving base station wherein the measurement report message includes at least one of type information and a cell identifier of the mobile relay station. The mobile stations receive a message which indicates handover to a target base station from the serving base station. The mobile relay stations disconnect connection with the serving base station. The mobile relay stations perform synchronization for the target base station and obtain wireless resources.
Abstract:
PURPOSE: A streaming service QoS guaranteeing system of a home network is provided to reduce loss rate of a frame of high significance by removing a frame in a buffer by considering significance of a frame and a virtual transmission time of a newly arrived video frame in a home network. CONSTITUTION: A terminal(10) stores QoS(Quality of Service) information including delay boun and a GOP(Group Of Picture) pattern of a streaming service from a streaming server(40). An AP(Access Point)(20) receives QoS information from the terminal. If a video frame related to the received QoS information is received from the streaming server, the AP grasps virtual transmission time and significance of the video frame. The AP removes video frame in a VQ(Virtual Queue) buffer.
Abstract:
PURPOSE: An apparatus and a method for reducing a handover interruption time through expected handover time negotiation in a broadband wireless communication system are provided to enable a terminal to stably receive fast ranging IE, thereby reducing a handover interruption time. CONSTITUTION: A method of operating a service base station(230) for handover of a terminal(200) comprises the following steps. A remaining handover expectation time of the terminal is calculated during a handover message exchange process with another base station. The calculated remaining handover expectation time is exchanged with a target base station.