发明名称 |
LMMSE-based RAKE receiver with channel tap assignment |
摘要 |
Methods of recovering data in a received signal sent in a communications media are disclosed. Composite channel impulse responses are first estimated. Channel-tap locations are then assigned to suppress the interference noises by sequential search schemes or heuristic search schemes based on estimated composite channel impulse responses. A sequential search scheme optimizes a predetermined design criterion in a sequential manner. Also described are recursive evaluations of the design criterion and the inverses of the noise covariance matrices based on the composite channel impulse response during a sequential search. A heuristic search scheme selects channel-tap locations based on a set of pre-selected channel-tap locations. The set of pre-selected channel-tap locations is determined according to the estimated composite channel impulse response. A method of estimating energy levels of known interference sources is also described.
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申请公布号 |
US7310394(B2) |
申请公布日期 |
2007.12.18 |
申请号 |
US20040754340 |
申请日期 |
2004.01.09 |
申请人 |
WANG XIAO-AN |
发明人 |
WANG XIAO-AN |
分类号 |
H04B1/10;H03H7/30;H03K5/159;H04L1/06;H04L1/20;H04L25/03 |
主分类号 |
H04B1/10 |
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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