发明名称 |
System and method for compensating for frequency offset |
摘要 |
The present invention is directed toward an automatic frequency control system for compensating for frequency offset of received data signals in a radio frequency communication system. A reference sample index for the data to be compensated is first determined as a function of the transmission channel and known training data. A scaled phase error estimate is calculated along with a time-varying filter parameter. From the scaled phase error estimate and the filter parameter, a frequency offset estimate and a phase drift estimate are calculated. The system proceeds through the time-indexed, received data signals until the entire received batch of data signals has been processed, and the corresponding compensated soft data has been output.
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申请公布号 |
US6798853(B1) |
申请公布日期 |
2004.09.28 |
申请号 |
US20000711910 |
申请日期 |
2000.11.15 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
LINDBOM LARS;ZANGI KAMBIZ |
分类号 |
H04B7/01;H04L27/00;(IPC1-7):H04L27/06 |
主分类号 |
H04B7/01 |
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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