发明名称 |
OFDM CHANNEL ESTIMATION METHOD AND APPARATUS |
摘要 |
Smaller patterns of regularly-spaced pilot symbols are discerned from a larger pattern of irregularly-spaced pilot symbols transmitted in the time-frequency domain. Accordingly, the irregularly-spaced pilot symbols can be partitioned into at least two different groups of regularly-spaced pilot symbols in the time-frequency domain. Each group of regularly-spaced pilot symbols is individually processed with lower complexity and the results combined to generate an accurate time-frequency channel response estimate. According to an embodiment, a set of irregularly-spaced pilot symbols is transmitted over a time-frequency window. Channel response is estimated based on the pilot symbols by grouping the pilot symbols into subsets of regularly-spaced pilot symbols. An intermediate quantity is generated for each subset of regularly-spaced pilot symbols as a function of the pilot symbols included in the subset. The channel response is estimated over the time-frequency window as a function of the intermediate quantities.
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申请公布号 |
US2010111231(A1) |
申请公布日期 |
2010.05.06 |
申请号 |
US20080265220 |
申请日期 |
2008.11.05 |
申请人 |
KOORAPATY HAVISH;GUEY JIANN-CHING |
发明人 |
KOORAPATY HAVISH;GUEY JIANN-CHING |
分类号 |
H04L27/06;H04L27/28 |
主分类号 |
H04L27/06 |
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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