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Rate agile rate-adaptive digital subscriber line

US9112795B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9112795-B2
Application numberUS-201313908840-A
CountryUS
Kind codeB2
Filing dateJun 3, 2013
Priority dateJan 12, 2004
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Methods and apparatus for maintaining the maximum achievable data rate on a DSL line, up to and including a rate to which a user subscribes is described. Performance monitoring is conducted on the DSL line on an ongoing basis to determine noise margins in each direction. Each noise margin is compared against pre-determined decreasing/increasing thresholds to determine whether the line characteristics dictate a data rate change without loss of synchronization. The invention supports dynamic provisioning changes including application driven service level change requests, e.g., new bandwidth-on demand services. In some embodiments, a combination of existing and new embedded operations channel (EOC) messages are used to implement the modem data rate changes. New EOC messages may be implemented using some of the reserved and/or vendor proprietary Opcodes currently permitted. Modem assigned data rate changes are implemented without a disruption of service, e.g., without the need for re-initialization and/or re-synchronization.

First claim

Opening claim text (preview).

What is claimed is: 1. A method, comprising: determining, by a digital subscriber line (DSL) modem, a downstream noise margin of a DSL connection, wherein the DSL connection is operating at a first downstream DSL data rate; receiving a request for the downstream noise margin from the DSL connection; responsive to the request, sending an indication of the downstream noise margin via the DSL connection; and based on the downstream noise margin, receiving a second downstream DS…

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Frequently asked questions

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What does patent US9112795B2 cover?
Methods and apparatus for maintaining the maximum achievable data rate on a DSL line, up to and including a rate to which a user subscribes is described. Performance monitoring is conducted on the DSL line on an ongoing basis to determine noise margins in each direction. Each noise margin is compared against pre-determined decreasing/increasing thresholds to determine whether the line character…
Who is the assignee on this patent?
Intellectual Ventures Ii Llc
What technology area does this patent fall under?
Primary CPC classification H04L47/2416. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).