System and method for upstream power backoff for xDSL
First Claim
1. A method of modeling a network comprising a plurality of transmission lines, the method comprising:
- measuring loop parameters of a transmission line to provide measured loop parameters, determining a topology of the transmission line by analysing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, selecting a further model for estimating crosstalk related parameters based on the determined topology, and estimating at least one crosstalk related parameter based on the determined topolgy and the selected further model.
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Abstract
A method and apparatus for modeling a network comprising a plurality of transmission lines is described, the method and system being adapted to measure loop parameters of first transmission line to provide measured loop parameters, determine a topology of the first transmission line by analyzing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, select a further model for estimating crosstalk related parameters based on the determined topology, and estimate at least one crosstalk related parameter based on the determined topolgy and the selected further model.
65 Citations
17 Claims
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1. A method of modeling a network comprising a plurality of transmission lines, the method comprising:
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measuring loop parameters of a transmission line to provide measured loop parameters, determining a topology of the transmission line by analysing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, selecting a further model for estimating crosstalk related parameters based on the determined topology, and estimating at least one crosstalk related parameter based on the determined topolgy and the selected further model. - View Dependent Claims (2, 3, 4, 5, 6, 7, 15, 16, 17)
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8. A system for modeling a network, comprising:
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means for measuring loop parameters of first transmission line to provide measured loop parameters, means for determining a topology of the first transmission line by analysing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, means for selecting a further model for estimating crosstalk related parameters based on the determined topology, and means for estimating at least one crosstalk related parameter based on the determined topolgy and the selected further model. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification