Maximum likelihood synchronization for a communications system using a pilot symbol
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United States of America Patent
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-
Dec 1, 2009
Grant Date -
Apr 29, 2004
app pub date -
Feb 1, 2002
filing date -
Feb 1, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method and apparatus for detecting and synchronizing packets of data with a repeated sequence as a pilot symbol received by a communications system are provided. The method and apparatus include receiving data, detecting a packet within the received data, producing an estimate of the time-varying frequency offset of the received data, estimating the start of the packet of the received data, estimating the time-varying phase offset of the received data and estimating the time-varying time offset of the received data. Methods for assessing each one of the time-varying frequency offset, the time-varying phase offset, the time-varying time offset and the start of packet are also provided.
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