WAVEFORM MODULATED WIRELESS RURAL AREA NETWORK (WRAN) SYSTEMS AND MODULATION AND MULTIPLE ACCESS TECHNIQUES FOR WIRELESS COMMUNICATION SYSTEMS
First Claim
1. A method for transmitting data in a wireless network, the method comprising:
- generating a plurality of waveforms corresponding to a plurality of frequency subbands for a predetermined frequency band, the predetermined frequency band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the plurality of frequency subbands;
receiving a data signal;
processing information associated with the received data signal;
modulating the plurality of waveforms based on at least information associated with the received data signal;
transmitting the modulated plurality of waveforms;
wherein;
any two of the plurality of waveforms are substantially orthogonal to each other;
each of the plurality of waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency;
the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband.
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Accused Products
Abstract
A method and system for transmitting data in a wireless network. The method includes generating a plurality of waveforms corresponding to a plurality of frequency subbands for a predetermined frequency band. The predetermined frequency band is divided into a plurality of groups of subbands, and the plurality of groups of subbands being divided into the plurality of frequency subbands. Additionally, the method includes receiving a data signal, processing information associated with the received data signal, modulating the plurality of waveforms based on at least information associated with the received data signal, and transmitting the modulated plurality of waveforms. Any two of the plurality of waveforms are substantially orthogonal to each other. Each of the plurality of waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency.
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Citations
25 Claims
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1. A method for transmitting data in a wireless network, the method comprising:
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generating a plurality of waveforms corresponding to a plurality of frequency subbands for a predetermined frequency band, the predetermined frequency band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the plurality of frequency subbands; receiving a data signal; processing information associated with the received data signal; modulating the plurality of waveforms based on at least information associated with the received data signal; transmitting the modulated plurality of waveforms; wherein; any two of the plurality of waveforms are substantially orthogonal to each other; each of the plurality of waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency; the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for transmitting data in a wireless network, the system comprising:
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a data processing component configured to receive a data signal; a serial-to-parallel converter coupled to the data processing component; a plurality of waveform generation and modulation components coupled to the serial-to-parallel converter and configured to generate a first plurality of waveforms and modulate the first plurality of waveforms based on at least information associated with the data signal, the first plurality of waveforms corresponding to a first plurality of frequency subbands for a predetermined band, the predetermined band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the first plurality of frequency subbands; a combination component configured to receive the modulated first plurality of waveforms and generate a combined waveform signal based on at least information associated with the modulated first plurality of waveforms; an antenna configured to transmit the combined waveform; wherein; any two of the first plurality of waveforms are substantially orthogonal to each other; each of the first plurality of waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency; the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A method for receiving data in a wireless network, the method comprising:
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receiving a signal including a first plurality of modulated waveforms, the first plurality of modulated waveforms corresponding to a plurality of frequency subbands respectively for a predetermined frequency band, the predetermined frequency band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the plurality of frequency subbands; generating a second plurality of base waveforms corresponding to the plurality of frequency subbands respectively; processing information associated with the first plurality of modulated waveforms and the second plurality of base waveforms; determining data carried by the first plurality of modulated waveforms based on at least information associated with the first plurality of modulated waveforms and the second plurality of base waveforms; wherein; any two of the second plurality of base waveforms are substantially orthogonal to each other; each of the second plurality of base waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency; the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband.
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25. A system for receiving data in a wireless network, the system comprising:
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an antenna configured to receive a combined waveform; a processing component configured to receive the combined waveform and generate a first plurality of modulated waveforms; a plurality of waveform generation and correlation components coupled to the processing component and configured to generate a second plurality of base waveforms and determine data carried by the first plurality of modulated waveforms based on at least information associated with the first plurality of modulated waveforms and the second plurality of base waveforms, the second plurality of base waveforms corresponding to a plurality of frequency subbands respectively for a predetermined frequency band, the predetermined frequency band being divided into a plurality of groups of subbands, the plurality of groups of subbands being divided into the plurality of frequency subbands; wherein; any two of the second plurality of base waveforms are substantially orthogonal to each other; each of the second plurality of base waveforms corresponds to a waveform frequency spectrum associated with a spectral amplitude as a function of a frequency; the spectral amplitude for the frequency spectrum equals substantially zero outside a frequency subband selected from the plurality of frequency subbands, and equals substantially a constant number within the frequency subband.
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Specification