Generating signals for transmission of information
First Claim
1. A method for generating a signal to transmit data, the method comprising:
- selecting a first set of carrier frequencies that are integral multiples of a first frequency interval, the first set of carrier frequencies associated with a first symbol length that is the inverse of the first frequency interval;
selecting a second set of carrier frequencies that are integral multiples of a second frequency interval, where the second frequency interval is an integral multiple of the first frequency interval and the second set is a subset of the first set, the second set of carrier frequencies associated with a second symbol length that is the inverse of the second frequency interval; and
determining whether to generate a symbol waveform for transmitting the data based on the first symbol length or the second symbol length, where generating a symbol waveform based on the second symbol length includes, for each of one or more signal carrier frequencies in the second set,selecting a plurality of associated carrier frequencies in the first set including a peak carrier frequency that is substantially the same as the signal carrier frequency; and
modulating waveform frequency components at each of the selected plurality of associated carrier frequencies according to a same data value.
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Accused Products
Abstract
A method for generating a signal is presented. The method includes selecting a first set of carrier frequencies that are integral multiples of a first frequency interval, and selecting a second set of carrier frequencies that are integral multiples of a second frequency interval. The second frequency interval is an integral multiple of the first frequency interval and the second set is a subset of the first set. The method includes, for each of one or more signal carrier frequencies in the second set, selecting a plurality of associated carrier frequencies in the first set including a peak carrier frequency having substantially the same value as the signal carrier frequency, and modulating waveform frequency components at each of the selected plurality of associated carrier frequencies according to the same data value.
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Citations
20 Claims
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1. A method for generating a signal to transmit data, the method comprising:
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selecting a first set of carrier frequencies that are integral multiples of a first frequency interval, the first set of carrier frequencies associated with a first symbol length that is the inverse of the first frequency interval; selecting a second set of carrier frequencies that are integral multiples of a second frequency interval, where the second frequency interval is an integral multiple of the first frequency interval and the second set is a subset of the first set, the second set of carrier frequencies associated with a second symbol length that is the inverse of the second frequency interval; and determining whether to generate a symbol waveform for transmitting the data based on the first symbol length or the second symbol length, where generating a symbol waveform based on the second symbol length includes, for each of one or more signal carrier frequencies in the second set, selecting a plurality of associated carrier frequencies in the first set including a peak carrier frequency that is substantially the same as the signal carrier frequency; and modulating waveform frequency components at each of the selected plurality of associated carrier frequencies according to a same data value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification