Frame scheduling based on an estimated direct memory access (DMA) latency and apparatus for time aware frame scheduling

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12267153
APP PUB NO 20230344539A1
SERIAL NO

17660222

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Abstract

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A network station scheduling a frame to be transmitted by a transmitter of the network station at a transmit time. The transmit time is based on a first clock. A request is then issued to a direct memory access (DMA) circuit to retrieve the frame from a system memory. An advance time offset associated with the first clock is determined based on an estimated DMA latency of the DMA circuit. A frame retrieved by the DMA circuit is provided to a staging circuit. When a time of a second clock reaches the transmit time of the frame in the staging circuit, the frame is transmitted at the transmit time. In an example, a time of the first clock is ahead of a time of the second clock by the advance time offset.

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Patent Owner(s)

Patent OwnerAddress
NXP B VHIGHTECH CAMPUS 60 EINDHOVEN 5656AG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pillar, John Ottawa, CA 10 183
Schellhorn, Mark Andrew Ottawa, CA 1 0
St-Denis, Bernard Francois Ottawa, CA 5 2

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