发明公开
EP1416752A1 Communication method using directional beam and radio base station
有权
Kommunikationsverfahren mittels einem gerichteten Strahl und Funkbasisstation
- 专利标题： Communication method using directional beam and radio base station
- 专利标题（中）： Kommunikationsverfahren mittels einem gerichteten Strahl und Funkbasisstation
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申请号： EP03024934.6申请日： 2003-10-29
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公开(公告)号： EP1416752A1公开(公告)日： 2004-05-06
- 发明人: Umesh, Anil , Tanaka, Shinya , Nakamura, Takehiro , Okawa, Koichi
- 申请人： NTT DoCoMo, Inc.
- 申请人地址： 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo JP
- 专利权人： NTT DoCoMo, Inc.
- 当前专利权人： NTT DoCoMo, Inc.
- 当前专利权人地址： 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo JP
- 代理机构： HOFFMANN - EITLE
- 优先权： JP2002314975 20021029
- 主分类号： H04Q7/36
- IPC分类号： H04Q7/36 ; H01Q3/24
摘要：
The object of the present invention is to avoid disconnection of a radio link between the radio base station and the mobile station even when the mobile station moves while transmitting no up signals in a case where the radio base station transmits the directional beam. The radio base station according to the present invention comprises an array antenna (11) to transmit/receive the directional beam, a transceiver (12) to receive an up signal from a mobile station (2) and to generate a directional beam pattern for each mobile station according to an antenna weight, an up signal interval measurer (13) to measure elapsed time from reception of the up signal, and an antenna weight generator (15) to change the antenna weight based on a result of measuring by the up signal interval measurer (13).
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