Path search method, channel estimation method and communication device
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United States of America Patent
Stats
-
Jul 4, 2006
Grant Date -
Apr 15, 2004
app pub date -
Dec 27, 2000
filing date -
Dec 28, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A communication device includes at least one of path search means for detecting respective timings of path components included a signal received via a multipath propagation path using pilot symbols of a known phase included in said received signal and channel estimation means for estimating channel variation using the pilot symbols. The path search means includes a first path search part for detecting respective timings of path components using pilot symbols and a second path search part for detecting respective timings of path components using information symbols derived from a signal demodulated according to the timings detected in the first path search part and pilot symbols. The channel estimation means includes a pilot symbol acquiring part for acquiring pilot symbols included in the received signal and a channel estimation part for implementing channel estimation using the acquired pilot symbols.
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