| 摘要 |
PROBLEM TO BE SOLVED: To enable precoding matrix design in a network topology having a relay node in consideration of information of a direct link between a source and a sink, a link between a source and the relay node, and a link between the relay node and the sink.SOLUTION: The method includes: determining channel state information each for sections from a first source to a sink, from a second source to the sink, from the first source to a relay node, from the second source to the relay node, and from the relay node to the sink; determining the respective precoding matrix of the first source, the second source, and the relay node on the basis of the determined channel state information; feeding back the determined precoding matrix to the first source, the second source, and the relay node; and precoding, by the first source, the second source, and the relay node, the data to be transmitted on the basis of the respective precoding matrix. |
