Communicating data using wideband communications
DCFirst Claim
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1. A method for communicating data, the method comprising:
- identifying a static component of a transmission medium for wideband communications having at least two subchannels;
determining a function of noise or attenuation versus frequency for the static component;
selecting wideband modulation schemes for the subchannels based on the function determined;
communicating a data signal over the subchannels;
identifying a dynamic component of the transmission medium for the wideband communications;
creating an adaptive filter based on the dynamic component; and
applying the adaptive filter to the communicated data signal at a receiver.
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Abstract
This disclosure relates to varying load and modulation applied to each of multiple frequency subchannels based on anticipated attenuation experienced by those subchannels. Communicating data includes identifying a static component of a transmission medium for wideband communications having at least two subchannels, determining a function of noise or attenuation versus frequency for the static component, selecting wideband modulation schemes for the subchannels based on the function determined, and communicating a data signal over the subchannels. Independent demodulation functions may be applied to at least two of the subchannels.
15 Citations
139 Claims
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1. A method for communicating data, the method comprising:
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identifying a static component of a transmission medium for wideband communications having at least two subchannels; determining a function of noise or attenuation versus frequency for the static component; selecting wideband modulation schemes for the subchannels based on the function determined; communicating a data signal over the subchannels; identifying a dynamic component of the transmission medium for the wideband communications; creating an adaptive filter based on the dynamic component; and applying the adaptive filter to the communicated data signal at a receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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19. The method as in claim further comprising:
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creating a noise filter by averaging elements of the noise filter based on the static component; and applying the noise filter to the communicated data signal at a receiver.
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36. A system for communicating data, comprising:
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a processor module that is structured and arranged to; identify a static component of a transmission medium for wideband communications having at least two subchannels, determine a function of noise or attenuation versus frequency for the static component, select wideband modulation schemes for the subchannels based on the function determined, and identify a dynamic component of the transmission medium for the wideband communications; a transmit module that is structured and arranged to communicate a data signal over the subchannels; and an adaptive filter that is created based on the dynamic component and applied to the communicated data signal at a receiver. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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71. A system for communicating data, comprising:
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means for identifying a static component of a transmission medium for wideband communications having at least two subchannels; means for determining a function of noise or attenuation versus frequency for the static component; means for selecting wideband modulation schemes for the subchannels based on the function determined; means for communicating a data signal over the subchannels; means for identifying a dynamic component of the transmission medium for the wideband communications; means for creating an adaptive filter based on the dynamic component; and means for applying the adaptive filter to the communicated data signal at a receiver. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105)
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106. A computer program, stored on a computer readable medium or a propagated signal for communicating data, comprising:
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a processor code segment that causes the computer to; identify a static component of a transmission medium for wideband communications having at least two subchannels, determine a function of noise or attenuation versus frequency for the static component, select wideband modulation schemes for the subchannels based on the function determined; and identify a dynamic component of the transmission medium for the wideband communications; a transmit code segment that causes the computer to communicate a data signal over the subchannels; and an adaptive filter code segment that causes the computer to create an adaptive filter based on the dynamic component and apply the adaptive filter to the communicated data signal at a receiver. - View Dependent Claims (107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139)
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Specification