Apparatus and Method to Allow a Frame Check Sequence to Determine the Updating of Adaptive Receiver Parameters of a High Speed Communication Device

a high-speed communication and frame check technology, applied in multiplex communication, digital transmission, instruments, etc., can solve the problem of inappropriate tracking of modem equalizers, and achieve the effect of improving performance, improving error detection level, and being more robus

Inactive Publication Date: 2006-12-28
PARADYNE CORP +1
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  • Abstract
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  • Claims
  • Application Information

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Benefits of technology

[0024] An advantage of the present invention is that it allows a communication device (or a DSP in a communication device) to perform OSI layer two frame check sequencing and error correction. This results in an increased level of error detection because the DSP now has access to the layer two error correction framing information in addition to the mean-square-error vector of the equalizer.
[0025] Another advantage of the present invention is that it provides a more robust, better performing technique for updating the adaptive receiver parameters.
[0026] Another advantage of the present invention is that it allows the equalizer filter taps to adjust gracefully to changin...

Problems solved by technology

Various channel conditions may cause th...

Method used

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  • Apparatus and Method to Allow a Frame Check Sequence to Determine the Updating of Adaptive Receiver Parameters of a High Speed Communication Device
  • Apparatus and Method to Allow a Frame Check Sequence to Determine the Updating of Adaptive Receiver Parameters of a High Speed Communication Device
  • Apparatus and Method to Allow a Frame Check Sequence to Determine the Updating of Adaptive Receiver Parameters of a High Speed Communication Device

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Embodiment Construction

[0037] The apparatus and method to allow a frame check sequence to determine the updating of adaptive receiver parameters of a high speed communication device can be implemented in software, hardware, or a combination thereof. In the preferred embodiment, the elements of the present invention are implemented in software that is stored in a memory and that configures and drives a suitable digital signal processor (DSP) situated in a communication device. However, the foregoing software can be stored on any computer-readable medium for transport or for use by or in connection with any suitable computer-related system or method. In the context of this document, a computer-readable medium is an electronic, magnetic, optical, or other physical device or means that can contain or store a computer program for use by or in connection with a computer-related system or method. Furthermore, the present invention is applicable to all modulation schemes as known in the art, and while discussed i...

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Abstract

A DSL device performs a frame check sequence operation in a digital signal processor (DSP), i.e., layer one of the OSI seven layer model, heretofore performed only in layer two of the OSI seven layer model. Performing the layer two framing and calculating the frame check sequence in the DSP allows the DSP to use the layer two error detection results, and optionally, the mean squared error vector, to more accurately determine whether to update adaptive receiver parameters.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a divisional of prior application Ser. No. 09 / 716,787, filed Nov. 20, 2000, which is a continuation of U.S. Pat. No. 6,272,108, issued Aug. 7, 2001, which claims priority to provisional application Ser. No. 60 / 036,006, filed Mar. 5, 1997, all of which are incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates generally to data communications, and more particularly, to a method and apparatus to determine the updating of a high speed communication device's adaptive receiver parameters. BACKGROUND OF THE INVENTION [0003] The field of data communications typically uses modems, or communication devices, to convey information from one location to another. Digital Subscriber Line (DSL) technology now enables communications devices to communicate large amounts of data. This communication scheme adheres generally to a model, known as the Open Systems Interconnect (OSI) Seven-Layer model. ...

Claims

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Application Information

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IPC IPC(8): H04J3/16G01R29/08
CPCH04L25/03993G01R29/0864
Inventor CHAPMAN, JOSEPH QUINN
Owner PARADYNE CORP
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