| 摘要 |
PROBLEM TO BE SOLVED: To provide a base station device capable of reducing power consumption of a mobile station. SOLUTION: The base station device 1 of a radio communication system has: an antenna 21 which receives radiowaves from the mobile station 2 and surrounding base stations; an antenna pattern switch 26 as a directivity variable means for varying directivity of the antenna 21; an antenna pattern selector 24 which selects the directivity of the antenna 21 in which communication quality becomes successful to the mobile station under communication by varying the directivity of the antenna; a power measuring instrument 31 which measures power of the surrounding base stations 3, 4 by the antenna 21 set to the selected directivity; a base station list creation device 33 which creates a base station list based on the measured power of the surrounding base stations 3, 4 and a means (such as a modulator 34, a DAC 35, a radio part 36) for transmitting the base station list to the mobile station 2 under the communication. COPYRIGHT: (C)2006,JPO&NCIPI
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