Method and the device which optimize the use of beam formation technology of antenna array

摘要

(57) Abstract Method and the device which optimize the applications of beam formation technology of antenna array in the transmitter which has the antenna array which possesses the plural antennas, are offered. The transmitter, direction, and the transmitter to communication unit through the plural antennas from that transmitter, calculates the arrival direction of the signal which is received from communication unit. Furthermore, the transmitter calculates the distance to communication unit from that transmitter, in addition, seeks plural signal quality metric on the basis of the plural signals which the transmitter receives from communication unit. And, the transmitter, it distinguishes, whether or not you use the beam formation technology of antenna array the direction which was requested and the arrival direction which was calculated, the distance which was calculated, either of signal quality metric it requested one or on the basis of above that, it optimizes the applications of beam formation technology of antenna array with that.