Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Reexamination Certificate
2007-02-20
2011-12-13
Ferris, Derrick (Department: 2463)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
Reexamination Certificate
active
08077595
ABSTRACT:
Techniques for efficiently sending data in a wireless communication system are described. Code division multiplexing (CDM) or orthogonal frequency division multiplexing (OFDM) may be selected for each traffic segment, which may correspond to specific time frequency resources. An output waveform comprised of traffic and overhead segments may be generated. Each traffic segment may carry CDM data at a chip rate if CDM is selected or OFDM data if OFDM is selected. OFDM symbols may be generated at a sample rate that may be an integer ratio of the chip rate and may have a duration that may be determined based on the traffic segment duration. The output waveform may carry CDM data and/or OFDM data on subcarriers corresponding to at least one carrier in a spectral allocation and may further carry OFDM data on remaining usable subcarriers in the spectral allocation.
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Bhushan Naga
Gorokhov Alexei
Braden Stanton
Crompton Christopher R
Ferris Derrick
QUALCOMM Incorporated
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