Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-01-16
2007-01-16
Ngo, Ricky Q. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S389000, C370S428000, C370S392000, C714S746000, C714S748000
Reexamination Certificate
active
09905132
ABSTRACT:
The present invention provides a method for supporting frame priority in a home phone line network. The method includes: detecting a limited automatic repeat request (LARQ) header in a frame with a priority tag; stripping the LARQ header and a frame check sequence (FCS) in the frame with the priority tag; recalculating the FCS for the stripped frame with the priority tag; and adding the recalculated FCS to the stripped frame with the priority tag. The method strips the LARQ header from a HPNA frame with the priority tag before it is sent to an Ethernet controller. By stripping the LARQ header, the Ethernet controller will correctly recognize the priority tag and send the frame to the appropriate priority queue. In this manner, frame priority is supported.
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Chow Peter
Karighattam Kishore
Williams Robert
Advanced Micro Devices , Inc.
Lee Andrew C.
Ngo Ricky Q.
Winstead Sechrest & Minick P.C.
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