Monitoring instability and resetting an equalizer
AssigneeGeneral Instrument Corporation
InventorsMichael J. Cooper, John L. Moran
Life of this patent
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Abstract
Instability resulting from non-linear impairments is detected and an equalizer of an end device is reset. An equalization instability threshold is retrieved from a data storage device. An equalization parameter for the end device is monitored and, if the equalization parameter exceeds the equalization instability threshold, the equalizer is reset.
Claims18
A communications device for detecting instability resulting from non-linear impairments and resetting at least one equalizer of an end device, the communications device comprising:
- a data storage device configured to store an equalization instability threshold;
- and
- a processor configured
- to monitor an equalization parameter for the at least one equalizer of the end device,
- to determine whether the equalization parameter exceeds the equalization instability threshold, and
- in response to the equalization parameter exceeding the equalization instability threshold, to reset the equalizer, wherein the equalization instability threshold comprises one of a maximum power threshold for total power in all secondary equalizer taps and a predetermined percentage of secondary equalizer taps exceeding a maximum power threshold.
A method for detecting instability resulting from non-linear impairments and resetting at least one equalizer of an end device using a communications device, the method comprising:
- retrieving an equalization instability threshold from a data storage device;
- monitoring an equalization parameter for the end device;
- and
- determining whether the equalization parameter exceeds the equalization instability threshold, and
- in response to the equalization parameter exceeding the equalization instability threshold, resetting the equalizer, wherein the equalization instability threshold comprises one of a maximum power threshold for total power in all secondary equalizer taps and a predetermined percentage of secondary equalizer taps exceeding a maximum power threshold.
A computer readable storage device storing at least one computer program that when executed by a computer system performs a method comprising:
- retrieving an equalization instability threshold from a data storage device;
- monitoring an equalization parameter for at least one end device;
- and
- determining whether the equalization parameter exceeds the equalization instability threshold, and
- in response to the equalization parameter exceeding the equalization instability threshold, resetting the equalizer, wherein the equalization instability threshold comprises one of a maximum power threshold for total power in all secondary equalizer taps and a predetermined percentage of secondary equalizer taps exceeding a maximum power threshold.
Dependencies are inferred from the claim text.