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:
Feb. 16, 2010
Filed:
Dec. 23, 2008
Huadong Xu, Shenzhen, CN;
Ming Chen, Shenzhen, CN;
Huadong Xu, Shenzhen, CN;
Ming Chen, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A 1+1 protection method of service in optical burst switching (OBS) networks, an intersection node apparatus, and protection system of service are provided. The method discloses that burst packets bearing service are transferred through two risk-independent routes, and each burst packet corresponds to a control packet. The intersection node receives a first control packet transferred through either route with a sequence number, and then, when it continues to receive the second control packet, which is transferred through the other route with the same sequence number as the first control packet carries within the waiting time of the first control packet, the intersection node selects the burst packet corresponding to the control packet with a smaller quality loss field value of the first and second control packets. The present invention prevents the services from being cut down, and remarkably reduces the packet loss ratio of the service.