The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2016
Filed:
May. 22, 2013
Applicant:
Alcatel-lucent Canada Inc., Ottawa, CA;
Inventors:
Kin Yee Wong, Ottawa, CA;
Peter Roberts, Ottawa, CA;
Assignee:
Alcatel Lucent, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/00 (2006.01); H04J 3/06 (2006.01); H04J 3/12 (2006.01); H04J 3/14 (2006.01);
U.S. Cl.
CPC ...
H04J 3/0638 (2013.01); H04J 3/0658 (2013.01); H04J 3/0688 (2013.01); H04J 3/12 (2013.01); H04J 3/14 (2013.01);
Abstract
A method and system are provided for improving maintenance of timing information when a node enters holdover due to a lost connection between a sub-network and a reference clock. Each node within the sub-network sends information concerning the drift of its local oscillator to a single node, and the single node uses this information to determine timing information for the entire sub-network. The single node may also use knowledge of the characteristics of the local oscillators. In this way, drift from the reference clock can be minimized without incurring significant added hardware costs.