Patent ID: 9231754
Filing Date: 2016-01-05
CPC Classification: H04J,H04L

Claim Text:
1. A system comprising: an access node configured to couple to a customer node and to: wherein the counter value is a sample index that comprises a superframe counter value, a symbol counter value, and a sample counter value recorded at a reference point corresponding to a reference event, wherein the reference event indicates a moment that a predefined signal appears, wherein the predefined signal is a PPS (pulse per second) signal, and wherein the counter value and the corresponding TOD value is used for synchronization of a first clock in the customer node with a second clock in the access node, wherein the customer node is configured to: wherein the TOD′ value is a pre-selected time of day value, and wherein adjusting the first clock in the customer node with the TOD′ value, and the counter value and the TOD value received from the access node comprises estimating a change in an offset between the TOD value and the TOD′ value from a present super frame period to a previous super frame period, and adjusting the first clock in the customer node with the change in the offset.