Environmental-based parameters optimization of clock

A method, comprising:

• generating a local clock signal having a clock frequency;
• maintaining a local clock responsively to the local clock signal;
• measuring at least one value of at least one environmental parameter;
• finding at least one value of at least one filter parameter based on the at least one value of the at least one environmental parameter;
• receiving an error signal between a remote clock and the local clock;
• and
• filtering the error signal and generate an adjustment to cause adjustment of the local clock signal or the local clock based on the at least one value of the at least one filter parameter;
• finding a cutoff frequency and an update rate of the filter based on the at least one value of the at least one environmental parameter;
• and
• computing the at least one value of the at least one filter parameter based on the cutoff frequency and the update rate of the filter.

A device, comprising:

• clock circuitry including:
• an oscillator to generate a local clock signal having a clock frequency;
• and
• a hardware clock to maintain a local clock responsively to the local clock signal;
• at least one sensor to measure at least one value of at least one environmental parameter;
• processing circuitry to find at least one value of at least one filter parameter based on the at least one value of the at least one environmental parameter;
• and
• a filter to:
• receive an error signal between a remote clock and the local clock;
• and
• filter the error signal and generate an adjustment to cause the clock circuitry to adjust the local clock signal or the local clock based on the at least one value of the at least one filter parameter, wherein the filter is a PI servo filter and the at least one filter parameter includes PI constants defining a bandwidth of the filter.