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.

Date of Patent:
Aug. 29, 2017

Filed:

Jul. 23, 2013
Applicant:

Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;

Inventors:

Qingfeng Yang, Beijing, CN;

Francesco Pasio, Genoa, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01);
U.S. Cl.
CPC ...
H04J 3/0685 (2013.01); H04J 3/0641 (2013.01); H04J 3/0658 (2013.01); H04J 3/0667 (2013.01);
Abstract

A technique for facilitating clock recovery in a node of a packet-based network is disclosed. The node is synchronized with other nodes based on a master-slave clock mechanism. A list of backup master clock node is maintained for the node, which includes at least one backup master clock node for the node, and in response to occurrence of a synchronization related event, a master clock node of the node is switched from the current master clock node to a backup master clock node selected from the list. A master clock node reselection message is generated and transmitted to the switched backup master clock node for the switched backup master clock node to reselect its master clock node.


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