Passive optical network communication method, device and system
A technology of passive optical network and communication device, applied in the field of optical communication
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Embodiment 1
[0072] Such as figure 2 as shown, figure 2 It is a data communication method in a passive optical network according to an embodiment of the present invention, and the method may be based on the above-mentioned figure 2 network architecture, the method includes:
[0073] S200. A calibration record reported by the ONU, where the calibration record includes the calibrated wavelength channel identifier.
[0074] Further, the calibration record reported by the ONU specifically includes:
[0075] The OLT sends a second message to the ONU, the second message includes the quiet window, and is used to instruct the ONU to register within the quiet window;
[0076] In the quiet window, receive the registration request reported by the ONU, which includes the serial number and the calibration record of the ONU in the registration request.
[0077] Further, the calibration record includes at least one of calibrated upstream wavelength channel identifiers and calibrated downstream wav...
Embodiment 2
[0115] image 3 A schematic flowchart of an ONU registration method for a passive optical network according to an embodiment of the present invention is given, and the method can be applied in figure 1 In the shown network architecture, the method may be executed by an apparatus that executes the communication method, for example, the method may be executed by an ONU or an OLT. Such as image 3 As shown, the method includes:
[0116] S300. The OLT sends a first message carrying a quiet window on multiple downlink wavelength channels, and the first message is used to instruct an unregistered ONU to register within the quiet window.
[0117] Wherein, the first message may be a physical layer operations management and maintenance (Physical Layer Operations Administration and Maintenance, PLOAM) message, an optical network terminal management and control interface (ONTMagement and Control Interface, OMCI) message, a multipoint control protocol (Multi- Point Control Protocols, M...
Embodiment 3
[0153] Such as Figure 4 as shown, Figure 4 It is a schematic flowchart of a wavelength channel switching method provided by an embodiment of the present invention.
[0154] It should be understood that, Figure 4 The shown method flow may be a further action after Embodiment 2, or may be a method flow independent of Embodiment 2.
[0155] Should Figure 4 The method flow shown can also be figure 1 On the basis of the architecture, it is specifically described that when a wavelength channel is added in the passive optical network system, the added wavelength channel may be an uncalibrated wavelength channel. It should be understood that the wavelength channels involved in the two scenarios described below can be understood as newly added wavelength channels of the passive optical network system. First, the energy saving of the OLT is considered in the existing system, that is, when there are few users or traffic in the existing network, the ONU is switched to some or eve...
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