Staas & Halsey LLP
Method and apparatus for monitoring wavelength channel
A method and an apparatus for monitoring a wavelength channel are disclosed. The method includes: performing optical-to-electrical detection on an optical signal on a wavelength channel, to obtain an electrical signal; obtaining a frequency spectrum of the electrical signal; determining a first parameter M according to an equation M=NAC, where NAC represents an alternating current component of the frequency spectrum of the electrical signal; and if M is greater than a preset first threshold, determining that the wavelength channel includes a real service signal. According to the method and apparatus, an erroneous configuration or operation of a network management system can be avoided.
HUAWEI TECHNOLOGIES CO., LTD.
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H04B H04B H04B H04B H04J
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Ning Juan
Deng Wang