发明申请
US20050053123A1 Wireless communications apparatus and method using array antenna
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使用阵列天线的无线通信装置和方法
- 专利标题: Wireless communications apparatus and method using array antenna
- 专利标题(中): 使用阵列天线的无线通信装置和方法
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申请号: US10931996申请日: 2004-09-02
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公开(公告)号: US20050053123A1公开(公告)日: 2005-03-10
- 发明人: Kenichi Higuchi , Hidekazu Taoka , Takashi Kataoka , Mamoru Sawahashi
- 申请人: Kenichi Higuchi , Hidekazu Taoka , Takashi Kataoka , Mamoru Sawahashi
- 申请人地址: JP Tokyo 100-6150
- 专利权人: NTT DoCoMo, Inc
- 当前专利权人: NTT DoCoMo, Inc
- 当前专利权人地址: JP Tokyo 100-6150
- 优先权: JP2003-317465 20030909
- 主分类号: H01Q21/00
- IPC分类号: H01Q21/00 ; H01Q3/26 ; H04B7/06 ; H04B7/08 ; H04B7/10 ; H04B7/26 ; H04B1/707
摘要:
A wireless communication apparatus comprises an array antenna configured to receive a signal at multiple antenna elements; a DoA estimation unit configured to estimate directions of arrival of multiple paths contained in the received signal; an angle spread estimation unit configured to estimate an angle spread of the multiple paths; a first weighting calculation unit configured to estimate a common set of weighting factors for all the paths; a second weighting calculation unit configured to estimate an individual set of weighting factors for each of the multiple paths based on the estimated directions of arrival of the paths; a weighting unit configured to weight the received signal by multiplying the received signal by one of the common set of weighting factors or individual set of weighting factor; and a demodulator configured to demodulate the weighted signal.
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