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:
Jan. 12, 2021
Filed:
May. 19, 2016
Siemens Aktiengesellschaft, Munich, DE;
Feng Chen, Feucht, DE;
Jürgen Schmitt, Fürth, DE;
SIEMENS AKTIENGSELLSCHAFT, Munich, DE;
Abstract
The invention relates to a method for fast reconfiguration of GM clocks in the TSN network by means of an explicit teardown message. Carrying out a network-wide cleansing of the outdated information ensures that outdated GM information having a higher priority cannot overwrite new information. The current BMCA+ relies on the hold time mechanism in order to quickly carry out the GM reconfiguration on all nodes. The problem is solved by the introduction of a specific advertising schema for the BMCA+ protocol in order to resolve the described instability during the GM reconfiguration period. The method uses an announce+ message for an extra messaging that displays a clock having outdated information and disseminates new information in the complete network. The aim is to inform all clocks that outdated information is present such that the GM reconfiguration can be carried out quickly and without extra conflicts. This so-called 'teardown' notification is provided for the case when a current best clock (that is, either a first or second-best GM clock) lowers its priority in order to become a subordinate clock.