MOBILE COMMUNICATION METHOD FOR BASE STATION, MOBILE COMMUNICATION BASE STATION DEVICE AND MOBILE STATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a mobile communication method for a base station by which the reception quality of a mobile station cannot be degraded even when the antenna of the mobile station is used in a tilted state from a vertical line. SOLUTION: The base station uses a vertically polarized wave antenna 2V or a horizontally polarized wave antenna 2H depending on the operating state of the antenna of the mobile station. In Fig. (a), the base station uses the vertically polarized wave antenna 2V to transmit a transmission wave 5V. In Fig. (b), the base station uses the horizontally polarized wave antenna 2H to transmit a transmission wave 5H. The state of the mobile station antenna 4 is estimated by comparing an evaluation amount on the basis of an average reception power of the vertically polarized wave component received by the vertically polarized wave antenna 2V with an evaluation amount on the basis of an average reception power of the horizontally polarized wave component received by the horizontally polarized wave antenna 2H. On the other hand, the base station receives a transmission wave 6 from the mobile station 3 by means of polarized wave diversity.