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Ofdm transmitting and receiving apparatus

Abstract: An OFDM transmitting and receiving apparatus comprises below units. A receiving unit receives an OFDM signal transmitted from a destination transmitting and receiving apparatus. A computing unit computes a value of a channel response characteristic of each of transmission channels corresponding to subcarriers contained in the OFDM signal received, and obtains a computed value. A comparing unit compares the computed value with a predetermined threshold value, and computes a ratio of the number of the subcarriers including the value of the channel response characteristic higher than the predetermined threshold value, to the number of all the subcarriers, and obtaining a computed ratio. A setting unit sets a transmission condition based on at least the computed ratio. A transmitting unit transmits an OFDM signal based on the transmission condition set. ...

Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C. - Alexandria, VA, US
Inventor: Kazumi SATO
USPTO Applicaton #: #20070297321 - Class: 370208000 (USPTO) - 12/27/07 - Class 370
Related Terms: Ares Carrier Ion Channel Ion Channels Ofdm Paring Subcarrier Threshold

Related Patent Categories: Multiplex Communications, Generalized Orthogonal Or Special Mathematical Techniques, Particular Set Of Orthogonal Functions
The Patent Description & Claims data below is from USPTO Patent Application 20070297321, Ofdm transmitting and receiving apparatus.

Ares Carrier DM Fdm Ion Channel Ion Channels Ofdm Paring Subcarrier Threshold

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