The disclosure relates to an electronic device, radio communication apparatus, and radio communication method. In one embodiment, an electronic device utilized at base station side comprises a processing circuit configured to: acquire information of an arrival time difference of diversity signals transmitted from two or more base stations to a mobile terminal; determine, on the basis of the information, a precoding matrix utilized in diversity signal transmission to reduce an impact of the arrival time difference on a diversity gain; and utilize the determined precoding matrix to perform precoding on a signal to be transmitted.