发明名称 |
MEASURING LINE PERFORMANCE |
摘要 |
A method of measuring the performance of a DSL line is proposed, providing an indication of potential faults in the line. Analysis of broadband DSL is less straightforward than for other technologies, since 'normal' behaviour depends on a number of factors, including line length and line quality, where normal behaviour for a long line could be regarded as poor for a short line. The data transmission characteristics of a DSL line under test are measured with reference to its upstream line attenuation, then the results are compared with the model for the corresponding data transmission characteristic. A performance measure is calculated for each characteristic indicative of the difference between the measured characteristic and the observed "average" for other lines having the same upstream line attenuation. A final line performance indicator is calculated based on the combination of all the individual performance measures, which provides a quantitative measure of a line's performance. |
申请公布号 |
EP2266300(B1) |
申请公布日期 |
2016.03.23 |
申请号 |
EP20090728949 |
申请日期 |
2009.02.18 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
BULL, PHILIP, MARTIN;ROHLFING, DAVID, MICHAEL |
分类号 |
H04M3/30;H04B3/46 |
主分类号 |
H04M3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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