Base station, user equipment and a wireless communications network

More for base station includes a plurality of transmit antenna ports, a precoding weight generating unit to generate precoding weights for controlling the direction of the beam transmitted by the transmit antenna ports, reception quality measurement at the user equipment a reference signal in order to adapt to a plurality of directions, a plurality of reference signals precoded by the precoding weight, in the form of a plurality of reference signals which have been pre-encoded so that the user equipment is distinguished, transmit antenna ports and at least the reference signal transmission control unit that transmits by either.