Pulse or digital communications – Receivers
Reexamination Certificate
2004-11-12
2009-06-16
Torres, Juan A (Department: 2611)
Pulse or digital communications
Receivers
Reexamination Certificate
active
07548595
ABSTRACT:
The invention relates to an apparatus and a method for estimating a fading frequency of incoming received waves in a receiving station of a radio communication system or radio transmission system. An object of the invention is to estimate a fading frequency efficiently and accurately without substantially complexing the configuration of the system. To this end, the invention provides an apparatus for estimating a fading frequency from a pilot signal in a reception signal, which includes a calculation unit for calculating a magnitude of a complex product of two symbols that are received at different instants, and an estimation unit for estimating a fading frequency according to the calculated magnitude of the complex product.
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Futami Tetsuhiro
Kimura Dai
Minowa Morihiko
Shimomura Tsuyoshi
Fujitsu Limited
Katten Muchin & Rosenman LLP
Torres Juan A
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