发明名称 |
Signal transmission apparatus and signal transmission method |
摘要 |
A signal transmission apparatus for transmitting a signal using multiple antenna elements comprises a transmission signal generator configured to convert at least one of a first signal addressed to an arbitrary mobile terminal belonging to a geographical area and a second signal addressed to a specific mobile terminal located in a part of the geographical area into one or more transmission signals to be transmitted using a prescribed beam pattern; a weighting adjustor configured to weight said one or more transmission signals for each of the antenna elements to define the prescribed beam pattern; and a signal synthesizer provided for each of the antenna elements and configured to synthesize the weighted transmission signals.
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申请公布号 |
US7620420(B2) |
申请公布日期 |
2009.11.17 |
申请号 |
US20040911522 |
申请日期 |
2004.08.05 |
申请人 |
NTT DOCOMO, INC. |
发明人 |
HIGUCHI KENICHI;IHARA TAISUKE;SAWAHASHI MAMORU |
分类号 |
H04M1/00;H01Q3/26;H01Q3/30;H01Q25/00;H04B1/707;H04B7/04;H04B7/06;H04B7/26 |
主分类号 |
H04M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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