Communication data using wideband communications
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United States of America Patent
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Jun 2, 2009
Grant Date -
Mar 24, 2005
app pub date -
Aug 30, 2002
filing date -
Aug 31, 2001
priority date (Note) -
In Force
status (Latency Note)
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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 (110), determining a function of noise or attenuation versus frequency for the static component (120), selecting wideband modulation schemes for the subchannels based on the function determined (130), and communicating a data signal over the subchannels (145). The transmission medium includes a medium other than a copper telephone wire between and including a carrier facility and a termination of the copper telephone wire at an access point at a user premise and copper telephone wire in a cable riser in multitenant units and multi-dwelling buildings. Independent demodulation functions may be applied to at least two of the subchannels.
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