Upstream frequency response measurement and characterization

Patent metadata

Field	Value
Publication number	US-9130790-B2
Application number	US-201514607163-A
Country	US
Kind code	B2
Filing date	Jan 28, 2015
Priority date	Mar 25, 2011
Publication date	Sep 8, 2015
Grant date	Sep 8, 2015

Abstract

Upstream frequency response measurement and characterization. Signaling is provided between respective communication devices within a communication system. Based upon at least one of these signals, one of the communication devices captures a number of sample sets corresponding thereto at different respective frequencies (e.g., a different respective center frequencies, frequency bands, etc.). Then, spectral analysis is performed with respect to each of the sample sets to generate a respective and corresponding channel response estimate there from. After this number of channel response estimates is determined, they are combined or splice together to generate a full channel response estimate. In implementations including an equalizer, different respective sample sets may correspond to those that have undergone equalization processing and those that have not.

First claim

What is claimed is:

1. A communication device comprising:
a communication interface; and
a processor, the processor and the communication interface configured to:
support communications with another communication device via a communication channel including to perform equalization of the communications using a plurality of equalizer taps;
determine a plurality of subsets of equalizer taps of the plurality of equalizer taps that correspond to a plurality of sub-channels distri…

Assignees

• Broadcom Corp

Inventors

• Currivan Bruce J
• Kolze Thomas J
• Min Jonathan S
• Hou Victor T

Classifications

• H04L25/03

  Electricity · mapped topic

• H04L25/022 Primary

  Electricity · mapped topic

• H04L25/03006

  Electricity · mapped topic