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:
Jun. 24, 2025
Filed:
Jun. 28, 2023
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Li Deng, Beijing, CN;
Jingjing Bao, Beijing, CN;
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 41/0663 (2022.01);
U.S. Cl.
CPC ...
H04L 41/0663 (2013.01);
Abstract
A network system comprises a first control unit, a second control unit, and a subscriber unit. The first control unit periodically sends a heartbeat message to the subscriber unit. the subscriber unit forwards received heartbeat messages to a second control unit. The second control unit makes a master/backup decision based on the heartbeat messages and whether a heartbeat message is received in a respective period.