发明名称 Base station, mobile communication system, and communication method
摘要 A base station comprises a directional antenna configured to transmit a directional beam to a mobile station, an omnidirectional antenna configured to transmit an omnidirectional beam to the mobile station, and an antenna controller configured to determine whether or not the mobile station is capable of receiving the directional beam, and select the directional antenna as an antenna for transmitting individual data in a case of being capable of receiving the directional beam, or select the omnidirectional antenna as an antenna for transmitting the individual data in a case of being incapable of receiving the directional beam.
申请公布号 US7099697(B2) 申请公布日期 2006.08.29
申请号 US20030644809 申请日期 2003.08.21
申请人 NTT DOCOMO, INC. 发明人 OKAWA KOICHI;TANAKA SHINYA;NAKAMURA TAKEHIRO
分类号 H04B7/06;H04M1/00;H04B7/08;H04B7/26;H04W16/28 主分类号 H04B7/06
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