Apparatus and method to allow a frame check sequence to determine the updating of adaptive receiver parameters of a high speed communication device
AssigneeParadyne Corporation
InventorJoseph Quinn Chapman
Life of this patent
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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.
Claims14
A digital subscriber line (DSL) communication device, comprising:
- a receiver for developing a received signal;
- and
- a digital signal processor (DSP) configured to perform layer two error detection by computing a frame check sequence (FCS) on each frame of said received signal, wherein said layer two error detection resides in layer one of the OSI seven layer model.
A method for updating adaptive parameters in a digital subscriber line (DSL) communication device, comprising the steps of:
- developing, in a receiver, a received signal;
- and
- performing, in a digital signal processor (DSP), layer two error detection by computing a frame check sequence (FCS) on each frame of said received signal, wherein said step of performing layer two error detection occurs in layer one of the OSI seven layer model.
Dependencies are inferred from the claim text.