Timestamp control loop

An agent device for timestamp synchronization in a communication system, the agent device comprising:

• a receiver configured to receive pulse signals at a constant rate from a primary clock device having a precision clock;
• an internal timestamp control loop;
• a timestamp generator configured to update timestamps at an adjustable increment rate;
• and
• control logic configured to synchronize the agent device with the primary clock device using the internal timestamp control loop.

A method of timestamp synchronization in a communication system, the method comprising:

• transmitting pulse signals at a constant rate from a primary clock device having a precision clock to an agent device;
• estimating, at the agent device using an internal timestamp control loop, a first time for receiving a pulse signal;
• receiving the pulse signal at the agent device at a second time;
• determining, at the agent device, a difference between the second time and the first time;
• adjusting, at the agent device, an increment rate of a timestamp generator based on the difference;
• and
• updating timestamps at the agent device using the adjusted increment rate to maintain synchronization with the primary clock device.