Method and system for estimating the ability of a subscriber loop to support broadband services
First Claim
1. A method for testing a subscriber loop to determine if it can support broadband transmission comprising the steps of:
- establishing a connection between a subscriber modem, through the telephone network, followed by a digital line from the network to a remote modem to a remote computer having a processor;
initiating voiceband transmission tests between the subscriber modem and the remote modem; and
estimating the broadband transmission performance of the subscriber loop based on the voiceband transmission test results.
12 Assignments
0 Petitions
Accused Products
Abstract
A method and system use voiceband transmission characteristics to estimate the viability of deploying broadband services over a subscriber loop in the public switched telephone network. The system gives network service providers the ability to predict the performance of broadband transmission channels, such as ADSL, on a subscriber loop from a central location and without reliance on outdated loop records maintained by a carrier. Based on this predicted performance a network service provider is able to efficiently determine the viability of deploying ADSL to a subscriber and, in turn, determine the viability of deploying ADSL in entire areas by creating an ADSL--ready consumer-lead list. The method comprises establishing an end to end voiceband modem connection from a logic device to a remote computer over a facility wherein the only analog elements reside in the subscriber loop. The system then uses the initial voiceband negotiation information collected by the modems to estimate the performance of the subscriber loop in the ADSL band. A list of ADSL ready subscribers may then be created for those subscribers whose estimated ADSL band performance is above a threshold level.
206 Citations
20 Claims
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1. A method for testing a subscriber loop to determine if it can support broadband transmission comprising the steps of:
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establishing a connection between a subscriber modem, through the telephone network, followed by a digital line from the network to a remote modem to a remote computer having a processor; initiating voiceband transmission tests between the subscriber modem and the remote modem; and estimating the broadband transmission performance of the subscriber loop based on the voiceband transmission test results. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for testing a subscriber loop to determine if it can support broadband transmission comprising the steps of:
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establishing a connection between a subscriber modem, through the telephone network, followed by a digital line from the network to a remote modem to a remote computer having a processor; initiating voiceband transmission tests between the subscriber modem and the remote modem; estimating, at the service provider location, the performance of the subscriber loop in the asymmetric digital subscriber line (ADSL) band based on the voiceband transmission test results; and providing the results of said voiceband transmission tests to a service provider. - View Dependent Claims (14, 15, 16)
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17. A system for testing a subscriber loop to determine if it can support broadband transmission comprising:
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a first modem coupled to the subscriber local loop; an originating office coupled to the subscriber local loop; and a loop qualification system connected to said originating office, said loop qualification system comprising a second modem coupled to a loop qualification service provider computer through a digital line coupled to said originating office, means for extracting the voiceband frequency response roll-off based on initial negotiation information captured and stored by said first and second modems, and means for estimating broadband transmission performance based on the voiceband far-end echo loss and received power level captured and stored by said second modem during initial modem negotiation.
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18. A system for testing a subscriber loop to determine if it can support broadband transmission comprising:
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a first modem coupled to the subscriber local loop; an originating office coupled to the subscriber local loop; and a loop qualification system connected to said originating office, said loop qualification system comprising a second modem coupled to a loop qualification service provider computer through a digital line coupled to said originating office, means for extracting the voiceband frequency response roll-off based on initial negotiation information captured and stored by said first and second modems, and means for estimating broadband transmission performance based on the voiceband far-end echo loss and received power level captured and stored by said second modem during initial modem negotiation; wherein said service provider computer comprises; means for acquiring identification information about the subscriber; means for accessing a database having the longitudinal and latitudinal coordinates of the subscriber; means for accessing a noise estimator having the capability to calculate the subscriber loop ingress noise based on the subscriber longitudinal and latitudinal coordinates; and means for storing the subscriber loop ingress noise and the subscriber identification information. - View Dependent Claims (19, 20)
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Specification