Methods and apparatus for reducing discrete power spectral density components of signals transmitted in multi-band wideband communications systems
OwnerShaomin Samuel Mo, Alexander Gelmaninventors
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Abstract
Methods and apparatus for processing data for transmission that reduces discrete power spectral density (PSD) components of a transmitted multi-band wideband signal including the processed data are disclosed. Each band of the multi band wideband signal includes waveforms corresponding to a different band of frequencies. Data is processed for transmission by selectively inverting the data, defining a sequence for modulating the bands of the multi-band wideband signal with the data, and modulating the data onto the waveforms within the bands of the multiband wideband signal in accordance with the defined sequence.
Claims20
A signal processing method for processing data for transmission that reduces discrete components of a transmitted multi-band wideband signal including the processed data, each band of the multi-band wideband signal including waveforms corresponding to a different band of frequencies, the method comprising the steps of:
- selectively inverting the data;
- defining a sequence for modulating the bands of the multi-band wideband signal with the data;
- and
- modulating the data onto the waveforms within the bands of the multi-band wideband signal in accordance with the defined sequence.
A signal processing system to process data for transmission that reduces discrete components of a multi-band wideband signal including the processed data, each band of the multi-band wideband signal including waveforms corresponding to a different band of frequencies, the system comprising:
- means for selectively inverting the data;
- means for defining a sequence for modulating the bands of the multi-band wideband signal with the data;
- and
- means for modulating the data onto the waveforms within the bands of the multi-band wideband signal in accordance with the defined sequence.
A signal processing apparatus to process data for transmission that reduces discrete components of a multi-band wideband signal including the processed data, each band of the multi-band wideband signal including waveforms corresponding to a different band of frequencies, the apparatus comprising:
- an inverter configured to selectively invert the data;
- a modulator coupled to the inverter, the modulator configured to modulate the waveforms within the bands of the multi-band wideband signal with the data in accordance with a defined band mapping sequence.
A computer readable carrier including software that is configured to control a computer to implement a signal processing method embodied in a computer readable medium to process data for transmission that reduces discrete components of a multi-band wideband signal including the processed data, each band of the multi-band wideband signal including waveforms corresponding to a different band of frequencies, the processing method including the steps of:
- selectively inverting the data;
- defining a sequence for modulating the bands of the multi-band wideband signal with the data;
- and
- modulating the data onto the waveforms within the bands of the multi-band wideband signal in accordance with the defined sequence.
Dependencies are inferred from the claim text.