| 摘要 |
According to one aspect of the invention, an arrangement for controlling transmission and/or reception of signals in a radio communications system is disclosed, comprising transceiving means (TX,RX) each connected to one of an array of antenna elements (#1...#n), wherein at least one of said transceiving means (TX,RX) is additionally connected to a calibration antenna for transmitting and/or receiving test signals to and/or from said antenna elements (#1...#n), at least one calibration processor for determining variations of said test signals in said transceiving means (TX,RX), and a beamforming processor for taking into account the determined variations for beamforming and/or determination of direction of arrival of respectively transmitted or received radio signals by said antenna elements (#1...#n). <IMAGE> |
