Method and apparatus for updating equalization coefficients of adaptive pre-equalizers
US8937992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2011 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03885
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for updating equalization coefficients of an adaptive pre-equalizer of a network element are provided. The method includes monitoring a communications channel to measure distortion of a communications signal received from the network element and detecting whether a transient impairment is present in the communication signal. When a transient impairment is not detected to be present, a pre-equalization coefficient update is transmitted to the network element. However, when a transient impairment is detected to be present, at least selected ones of the pre-equalization coefficients are scaled before the update is transmitted to the network element or the update is withheld from being transmitted to the network element. An apparatus is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.