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US 10,257,825 B2Granted
Reducing hardware precision time measurement inaccuracy
AssigneeIntel Corporation
InventorsSay Cheong Gan, Poh Thiam Teoh, Hooi Kar Loo, Sun Zheng E, Keng Dar Ang
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Abstract
Aspects of the embodiments are directed to systems, methods, and devices, such as an upstream device that includes an input/output port. The input/output port configured to receive a message from an output port of a downstream device; transmit a plurality of acknowledgement messages to the downstream device; and transmit a response message to the received message to the downstream device.
Claims20
An upstream device comprising:
- an input/output port to:
- receive a precision time measurement (PTM) request message from an output port of a downstream device;
- transmit a plurality of acknowledgement messages to the downstream device based on receiving the PIM request message;
- and
- transmit a PIM response message to the received message to the downstream device;
- and
- controller logic to:
- monitor a link quality of a link between the upstream device and the downstream device;
- set a register bit to identify a number of acknowledgement messages based on the link quality of the link between the upstream device and the downstream device;
- and
- transmit the number of acknowledgement messages to the downstream device based on successful reception of a message from the downstream device.
8 more elements
A method comprising:
- receiving a precision time measurement (PTM) request message from an output port of a downstream device;
- transmitting a plurality of acknowledgement messages to the downstream device based on receiving the PTM request message;
- transmitting a PTM response message to the PTM request message to the downstream device;
- monitoring a link quality of a link between the upstream device and the downstream device;
- setting a register bit to identify a number of acknowledgement messages based on the link quality of the link between the upstream device and the downstream device;
- and
- transmitting the number of acknowledgement messages to the downstream device based on successful reception of the PTM request message from the downstream device.
4 more elements
At least one machine accessible storage medium having code stored thereon, the code when executed on a machine, causes the machine to:
- receive a message from an output port of a downstream device;
- transmit a plurality of acknowledgement messages to the downstream device;
- transmit a response message to the received message to the downstream device;
- monitor a link quality of a link between the upstream device and the downstream device;
- set a register bit to identify a number of acknowledgement messages based on the link quality of the link between the upstream device and the downstream device;
- and
- transmit the number of acknowledgement messages to the downstream device based on successful reception of a message from the downstream device.
4 more elements
Dependencies are inferred from the claim text.