Determining channel matrices by correlated transmissions to...

Pulse or digital communications – Transmitters – Antinoise or distortion

Reexamination Certificate

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C375S267000, C375S299000, C455S114200, C455S115100, C370S465000

Reexamination Certificate

active

07830978

ABSTRACT:
A method involves performing a plurality of acts. The acts include transmitting a first signal stream to a first channel of a multi-channel communications medium while transmitting a second signal stream to a different second channel of the medium. The second signal stream is substantially temporally correlated to the first signal stream. The method includes receiving an SINR measured at a receiver configured to receive signals from the first channel. The SINR is measured while the receiver received the first signal stream. The method includes determining a channel matrix element between the first and second channels or a ratio of said channel matrix element to a diagonal element of the channel matrix. The act of determining is based on the received SINR.

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PCT International Search Report dated Apr. 28, 2009 (PCT/US2008/010058) 3 pages.

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