发明授权
US07672409B2 Base station software for multi-user detection uplinks and downlinks and method thereof
失效
用于多用户检测上行链路和下行链路的基站软件及其方法
- 专利标题： Base station software for multi-user detection uplinks and downlinks and method thereof
- 专利标题（中）： 用于多用户检测上行链路和下行链路的基站软件及其方法
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申请号： US11181700申请日： 2005-07-15
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公开(公告)号： US07672409B2公开(公告)日： 2010-03-02
- 发明人: Sanyogita Shamsunder
- 申请人： Sanyogita Shamsunder
- 申请人地址： US NY White Plains
- 专利权人： Sandbridge Technologies, Inc.
- 当前专利权人： Sandbridge Technologies, Inc.
- 当前专利权人地址： US NY White Plains
- 主分类号： H04B1/02
- IPC分类号： H04B1/02
摘要：
A method of multi-user detection in a given uplink and downlink time slot in a software-defined receiver which includes filtering and sampling a received signal; forming a block-banded matrix A of the sampled signals; and solving {circumflex over (d)}=T−1y, where T=(AHA), y=AHx. The methods of solving for the matrix T includes a) computing Cholesky factors of the matrix T by approximating using the block-banded property of the matrix T and A; b) Schur decomposition for Cholesky factors of the matrix T and approximating the lower triangular Cholesky factor matrix R using block Toeplitz property of matrix T; or c) Fourier Transformation.
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