Invention Grant
- Patent Title: Method and system for protection switching
- Patent Title (中): 保护切换方法和系统
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Application No.: US12686611Application Date: 2010-01-13
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Publication No.: US08224180B2Publication Date: 2012-07-17
- Inventor: Surendra Gupta , Vijay Khopade , Raghu Rajan , Manlio Marquez
- Applicant: Surendra Gupta , Vijay Khopade , Raghu Rajan , Manlio Marquez
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Baker Botts L.L.P.
- Main IPC: H04B10/00
- IPC: H04B10/00

Abstract:
A method is provided for protection switching in an optical network. The method may include: (i) establishing a baseline power level for a channel and a threshold value for the channel approximately equal to a predetermined threshold value; (ii) receiving a signal associated with the channel via each of a first path of the optical network and a second path of the optical network; (iii) monitoring a power intensity of the signal received via the first path; (iv) determining an average power intensity of the signal received via the first path based on the monitored power intensity; (v) modifying at least one of the baseline power level and the threshold value in response to a determination that the average power intensity exceeds the baseline power level; and (vi) protection switching from the signal received via the first path to the signal received via the second path in response to a determination that the baseline power level exceeds the power intensity of the signal received via the first path by the threshold.
Public/Granted literature
- US20110097081A1 Method and System for Protection Switching Public/Granted day:2011-04-28
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