METHOD AND APPARATUS FOR DETECTING BRANCH FIBERS, AND PASSIVE OPTICAL NETWORK
First Claim
1. A method for detecting branch fibers in a point-to-multipoint optical network, wherein the optical network comprises an optical splitting module and a plurality of branch fibers connected to different ports of the optical splitting module respectively, the method comprising:
- sending test signals to the branch fibers, wherein the test signals are respectively added, at the ports of the optical splitting module, with identification information for identifying the branch fibers connected to the ports; and
receiving a reflection signal added with the identification information of a detected branch fiber, identifying the branch fiber corresponding to the reflection signal through detecting the identification information added to the reflection signal, and obtaining channel characteristics of the branch fiber according to the reflection signal.
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Abstract
A method for detecting branch fibers is provided, which includes: sending test signals to a plurality of branch fibers, where the test signals are added at ports of the optical splitting module with identification information for identifying branch fibers connected to the ports; and receiving a reflection signal added with the identification information of a detected branch fiber, identifying the detected branch fiber corresponding to the reflection signal through detecting the identification information added to the reflection information, and obtaining channel characteristics of the detected branch fiber according to the reflection signal. Further, a system and an apparatus for detecting branch fibers are provided.
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Citations
17 Claims
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1. A method for detecting branch fibers in a point-to-multipoint optical network, wherein the optical network comprises an optical splitting module and a plurality of branch fibers connected to different ports of the optical splitting module respectively, the method comprising:
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sending test signals to the branch fibers, wherein the test signals are respectively added, at the ports of the optical splitting module, with identification information for identifying the branch fibers connected to the ports; and receiving a reflection signal added with the identification information of a detected branch fiber, identifying the branch fiber corresponding to the reflection signal through detecting the identification information added to the reflection signal, and obtaining channel characteristics of the branch fiber according to the reflection signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for detecting branch fibers, comprising a test device, an optical splitting module and a plurality of branch fibers, wherein:
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the test device is connected to the branch fibers through the optical splitting module; the test device is configured to send test signals to the branch fibers respectively through the optical splitting module during branch fiber detection; the optical splitting module is configured to add identification information of the branch fibers respectively into the test signals through ports of the optical splitting module, and send the test signals to the branch fibers respectively; and the test device is further configured to receive a reflection signal added with the identification information of a detected branch fiber, identify the detected branch fiber corresponding to the reflection signal according to the identification information added to the reflection signal, and obtain channel characteristics of the detected branch fiber according to the reflection signal. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A passive optical network system, comprising an optical line terminal, an optical splitter, and a plurality of optical network units (ONU), wherein the optical line terminal is connected to the optical network units in a point-to-multipoint mode through the optical splitter, and the passive optical network system further comprises:
a test device, configured to send test signals to physical channels where the ONUs are located through the optical splitter, wherein the test signals are added, at ports of the optical splitter, with identification information of the physical channels corresponding to the ports respectively; and
the test device is further configured to receive a reflection signal added with the identification information of a detected physical channel, identify the detected physical channel corresponding to the reflection signal through detecting the identification information added to the reflection signal, and obtain channel characteristics of the detected physical channel according to the reflection signal.- View Dependent Claims (15, 16, 17)
Specification