Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2006-04-12
2009-10-13
Ngo, Ricky (Department: 2416)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
C375S260000, C375S254000
Reexamination Certificate
active
07602697
ABSTRACT:
In an exemplary embodiment, an orthogonal frequency division multiplexing (OFDM) system includes an OFDM transmitter and an OFDM receiver that is configured to receive OFDM signals from the OFDM transmitter over a communication channel. The OFDM signals comprise a plurality of tones including data bearing tones that carry data and reserved tones for generating peak-to-average-power (PAPR) reduction signals. The OFDM system also includes a channel estimation component that is configured to estimate communication channel information for the data bearing tones and also for the reserved tones. The OFDM system also includes a tone selection component that is configured to determine tone selection information based on the estimated communication channel information.
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Austin Rapp & Hardman
Ngo Ricky
Sharp Laboratories of America Inc.
Zaidi Iqbal
LandOfFree
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