摘要:
A system and method to perform double-ended measurements of a network is provided. The system includes a test device that makes measurements at the customer end and a portable computing device that interfaces with the test device, a customer gateway and database at a network location to analyze the data and determine a performance metric of the network.
摘要:
The application discloses a system and a method of selecting a profile of a digital subscriber line. In a particular embodiment, the method includes setting a threshold for voice quality and determining a number of acceptable code violations that can occur without compromising the voice quality of the digital subscriber line. When the actual number of code violations exceeds the determined number of code violations an alternate profile is selected for the DSL line.
摘要:
A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.
摘要:
Methods and apparatus to detect an imbalanced subscriber line in a digital subscriber line (DSL) system are disclosed. An example method comprises identifying a contiguous set of performance parameters in a plurality of performance parameters for respective ones of a plurality of DSL sub-carriers of a subscriber line associated with a DSL modem, the identified set have values representative of degraded performance and corresponding to an operating frequency of a geographically proximate AM interference source. The example method further comprises comparing a number of DSL sub-carriers contained in the identified set with a threshold to determine whether the subscriber line has an imbalanced condition.
摘要:
An Internet protocol television system includes a server that records content on a set-top box, determines storage capacity utilization, and when utilization is greater than a threshold, prompts to select other content on the storage device to be deleted.
摘要:
The application discloses a system and a method of selecting a profile of a digital subscriber line. In a particular embodiment, the method includes setting a threshold for voice quality and determining a number of acceptable code violations that can occur without compromising the voice quality of the digital subscriber line. When the actual number of code violations exceeds the determined number of code violations an alternate profile is selected for the DSL line.
摘要:
A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.
摘要:
Methods and apparatus to test a subscriber line for a broadband access service are disclosed. An example network interface device (NID) comprises a tone generator to transmit a tone on a subscriber line to characterize the subscriber line while a DSL modem is providing a DSL service via the subscriber line, the tone having a frequency occurring within a range of frequencies in use by the DSL modem to provide the DSL service, and a pair of terminals to couple the DSL modem and the tone generator to the subscriber line.
摘要:
The present disclosure provides a system and method for detecting faults related to lines linked to provide network services. The method includes storing a synthetic value for the performance of a line, receiving a measured value of a performance parameter of the line measured at a customer end and comparing the synthetic value with the measured value to determine if a fault condition exists.
摘要:
In a particular embodiment a method of collecting and processing modem data is provided. The method includes, during training of a broadband modem, sending a series of tones within a frequency transmission band of the broadband modem, receiving the transmitted series of tones at a receiving broadband modem, receiving a measurement value, determining a transmission loss for each of the series of tones by comparing the predetermined transmission power level, and the received measured power level, performing a statistical match comparison between each of the received tone signals and a plurality of different computer models of a single transmission facility having various bridge taps connected to the single transmission facility, and determining a best fit between each of the received tone signals and one of the plurality of the bridge tap computer models. The series of tones have a predetermined transmission power level.