Abstract:
단말의채널상태또는이동성에따라협력멀티포인트송/수신또는단일포인트송/수신중 어느하나가적용된다. 채널상태의변화가클수록협력멀티포인트송/수신에따른이득은감소하는반면, 피드백오버헤드는증가하므로, 단일포인트송/수신이선호되며, 채널상태의변화가작은경우, 협력멀티포인트송/수신이선호될수 있다. 또한, 단일포인트송/수신을위한마진타임및 협력멀티포인트송/수신을위한마진타임은단말의이동성에따라적절히조절될수 있다.
Abstract:
PURPOSE: A multi-point cooperation method which considers delay in wireless communication system is provided to remove the interference between a UL cooperative domain and a non-cooperative domain by scheduling uplink cooperative terminals having similar delay property in the uplink cooperation. CONSTITUTION: UL(UpLink) cooperative terminals(520,522) transmits UL cooperative data to a serving BS(Base Station)(510) and a cooperative BS(530). The serving BS receives delay property of the UL cooperative terminals, and schedules the UL cooperative terminals. The UL cooperative terminals adopt a frame structure. A non-cooperative terminals(542) adopt a frame structure. The non-cooperative terminals transmit frame structure-adopted UL cooperative data to the cooperative BS.
Abstract:
PURPOSE: A communication system for adaptively applying single point transceiving or multi point transceiving is provided to adaptively select one of cooperative multi transceiving or single point transceiving to a target terminal based on a channel state or mobility of the target terminal. CONSTITUTION: A determining unit(1330) determines at least one of margin time for single point transceiving or a margin time for cooperative multi point transceiving based on information related to a channel state of a target terminal. A processing unit(1340) performs at least one of the single point transceiving or the cooperative multi point transceiving. The processing unit performs the transceiving in consideration of margin time for the single point transceiving and margin time for the multi point transceiving.