发明授权
- 专利标题： Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver
- 专利标题（中）： 使用快速傅立叶变换的无线通信设备在正交频分复用接收机中创建，优化和并入波束空间天线阵列
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申请号： US11586415申请日： 2006-10-25
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公开(公告)号： US07453964B2公开(公告)日： 2008-11-18
- 发明人: Robert Lind Olesen , Alexander Reznik , Philip J. Pietraski , Rui Yang
- 申请人： Robert Lind Olesen , Alexander Reznik , Philip J. Pietraski , Rui Yang
- 申请人地址： US DE Wilmington
- 专利权人： InterDigital Technology Corporation
- 当前专利权人： InterDigital Technology Corporation
- 当前专利权人地址： US DE Wilmington
- 代理机构： Volpe and Koenig, P.C.
- 主分类号： H04B1/02
- IPC分类号： H04B1/02
摘要：
A wireless communication apparatus which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver which incorporates a beam space antenna array. The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators, whereby the order of operations in the OFDM receiver can be interchanged.
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