FIELD: wireless communication.
SUBSTANCE: in the method of receiving channel state information (CSI), channel state information (CSI) is generated from calculated information of an equivalent channel obtained from a reduced number of ports of an antenna array of a BS.
EFFECT: reduced computational complexity associated with performing CSI calculation operations on a UE and searching for an optimum precoding matrix, without detriment to efficiency of subsequent communication between the UE and the BS.
18 cl, 15 dwg
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