Techniques for improved clock offset measuring

摘要

In an exemplary aspect, method, apparatus, and program products are disclosed suitable for clock offset determination. One method includes performing a number of exchanges of at least single bytes with another network node, where values of the single bytes are different for the exchanges. The method also includes capturing and storing timestamps for each of the number of exchanges performed on the network node. A second method includes capturing and saving arrival timestamps for each of a number of timing messages in a set of timing messages received from another network node. This second method also includes sending the timestamps to at least the another node in response to completion of the set of timing messages.

主权项

1. A method performed on a network node, comprising:
receiving from another network node a set of timing messages containing single byte data payloads; capturing and saving arrival timestamps for each of the set of timing messages; responsive to the receiving, sending to the another network node a corresponding set of timing messages containing a same single byte data payload as contained in the corresponding received timing message, wherein receiving a timing message and sending a timing message forms a ping pong exchange, and where there is no difference between a value of the single bytes for each exchange but there is a difference between values of the single bytes between exchanges; and sending the timestamps to at least the another node in response to completion of receiving the set and sending the corresponding set of timing messages.