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US 2015/0030059 A1Published application
Method and apparatus for detecting improper connections near a customer premises equipment
AssigneeIkanos Communications, Inc.
InventorRaghunath KALAVAI
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Abstract
According to certain aspects, embodiments of the invention relate to methods and apparatuses to detect loss of connectivity due to improper connection near the CPE modem (i.e. small loop condition) based on the analysis of SELT. In embodiments, this condition is detected based on separately analyzing the location and levels of time domain signals associated with different transmission bands in an xDSL bandplan.
Claims19
A method for examining connections near a modem in a communications system, comprising:
- receiving test signal data from the line for two or more separate frequency bands;
- separately converting the test signal data to at least first and second different sets of time domain data corresponding to first and second ones of the separate frequency bands;
- and
- analyzing the first and second time domain data to identify an improper connection near the modem.
1 more element
An apparatus for examining connections near a modem in a communications system, comprising:
- a capture block that receives test signal data from the line for two or more separate frequency bands;
- first and second IFFTs that respectively convert the test signal data to at least first and second different sets of time domain data corresponding to first and second ones of the separate frequency bands;
- and
- a TDR analysis engine that analyzes the first and second time domain data to identify an improper connection near the modem.
1 more element
Dependencies are inferred from the claim text.