发明授权
- 专利标题： Method for estimating channel statistics in an OFDM receiver
- 专利标题（中）： 用于估计OFDM接收机中的信道统计的方法
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申请号： US12204975申请日： 2008-09-05
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公开(公告)号： US08457222B2公开(公告)日： 2013-06-04
- 发明人: Ahsan U. Aziz , Sili Lu
- 申请人： Ahsan U. Aziz , Sili Lu
- 申请人地址： US CA Cupertino
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertino
- 代理机构： Gazdzinski & Associates, PC
- 主分类号： H04L27/01
- IPC分类号： H04L27/01
摘要：
A method of estimating channel statistics includes storing a plurality of pilot symbols from a plurality of received signals, establishing a reference for correlation; computing instantaneous correlations for each time lag of each of the plurality of pilot symbols relative to the reference, providing a table comprising non-isotropic scattering correlation values, computing current refined correlations using previous refined correlations and instantaneous correlations, comparing current refined correlations to the table of correlation values, and choosing correlation values from the table based on the step of comparing current refined correlations to the table.
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