Abstract:
무선랜시스템에서상향링크를위한간섭정렬방법및 이를수행하기위한액세스포인트및 사용자단말이개시된다. 액세스포인트는간섭공간을선택하고, 선택된간섭공간에대한정보를브로드캐스트할수 있다. 액세스포인트는적어도하나의사용자단말로부터수신한간섭누출정보에기초하여데이터의전송기회를부여할사용자단말을선택할수 있다. 액세스포인트는사용자단말로부터데이터를수신하는경우, MMSE 기반의수신필터를이용하여사용자단말로부터수신한데이터를디코딩할수 있다.
Abstract:
액세스 포인트의 동작 방법 및 릴레이의 동작 방법이 개시된다. 일 실시예에 따른 액세스 포인트는 오버래핑 채널의 사용을 금지하는지 여부를 지시하는 제1 정보, 릴레이에 의하여 논-오버래핑 채널을 이용한 동작이 지원되는지 여부를 지시하는 제2 정보, 및 액세스 포인트와 동일 채널의 사용이 요청되는지 여부를 지시하는 제3 정보 중 적어도 하나에 기초하여, 릴레이와 연관할지 여부를 결정할 수 있다.
Abstract:
Disclosed are a method and an apparatus for an opportunistic interference alignment in SU-MIMO transmission. The method for opportunistic interference alignment includes the steps of: selecting an interference space; broadcasting information about the selected interference space; selecting a user terminal to give a transmission opportunity for each sub channel based on the information about a leakage of interference (LIF) if a request to send (RTS) message including information about the (LIF) is received from the user terminal; and transmitting data to the selected user terminal.
Abstract:
Disclosed are a method for transmitting a group frame, a communications device for performing the method, a method for receiving the group frame, and a user terminal for receiving the group frame. The communications device may transmit a group frame, which is created by grouping a frame to be transmitted to each of a plurality of user terminals at a physical layer, to each of the user terminals.
Abstract:
Disclosed is a method for scheduling transmission by grouping stations. The method for scheduling transmission by grouping station includes a step of physically grouping a plurality of stations based on the position of the station by a plurality of sectors; a step of logically grouping each physical group grouped through the physical grouping based on common properties which the stations included in each physical group have; a step of transmitting access scheduling information scheduled in order for each logical group grouped through the logical grouping to have access to an access point at different time sections; and a step of controlling the accesses of the stations according to the access scheduling information.