Methods and apparatus for measuring service disruption
Measurement of duration of service disruption affecting communication of a data stream containing payload data and non-payload symbols interspersed within the payload data is accomplished by monitoring the data stream to detect a symbol having a value indicative of occurrence of an error in the payl...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
08.02.2006
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Subjects | |
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Abstract | Measurement of duration of service disruption affecting communication of a data stream containing payload data and non-payload symbols interspersed within the payload data is accomplished by monitoring the data stream to detect a symbol having a value indicative of occurrence of an error in the payload data. Upon detection of a symbol having a value indicative of occurrence of an error, monitoring continues for the occurrence of errors in a modified version of the data stream, the modified version comprising the received data stream with the detected symbol omitted. An error is determined to have occurred if another symbol having a value indicative of occurrence of an error is detected in the modified version of the data stream after the omitted symbol. The duration of service disruption is taken as being the elapsed time between commencement of disruption of reception and the last determination of occurrence of an error in the modified version of the data stream. |
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AbstractList | Measurement of duration of service disruption affecting communication of a data stream containing payload data and non-payload symbols interspersed within the payload data is accomplished by monitoring the data stream to detect a symbol having a value indicative of occurrence of an error in the payload data. Upon detection of a symbol having a value indicative of occurrence of an error, monitoring continues for the occurrence of errors in a modified version of the data stream, the modified version comprising the received data stream with the detected symbol omitted. An error is determined to have occurred if another symbol having a value indicative of occurrence of an error is detected in the modified version of the data stream after the omitted symbol. The duration of service disruption is taken as being the elapsed time between commencement of disruption of reception and the last determination of occurrence of an error in the modified version of the data stream. |
Author | NICHOLAS WILLIAM GENT ATANU NAG SIMON JOHN FIDDES |
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SubjectTerms | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
Title | Methods and apparatus for measuring service disruption |
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