PON CHANNEL ESTABLISHMENT METHOD, ONU, PLT AND SYSTEM
FIG5 is an exemplary flowchart of a method for establishing channels for a passive optical network according to an embodiment of the present disclosure
FIG5 is an exemplary flowchart of a method for establishing channels for a passive optical network according to an embodiment of the present disclosure. As shown in FIG5, the method for establishing channels for a passive optical network provided in this embodiment is applied to an interaction between the ONU and the OLT. The OLT includes plural ports, each of which corresponding to one channel. Each channel uses one downlink wavelength and one uplink wavelength, and on each channel, one OLT port manages a group of ONUs. The group of ONUs transmit uplink data in a time division multiplexing access mode, and different groups of ONUs on different wavelength channels transmit data in a wavelength division multiplexing mode. One ONU can support data transmission and reception on plural channels simultaneously. The method may include the following steps 501-512:At step 501, the OLT sends registration messages to the ONU.
flowchart
511
ONU normally. At step
502
step
507
ranging results. At step
506
508
At step
509
downlink wavelength. At step
501
step
504
described herein. At step
505
OLT. At step
510
ONU itself. At step
512
OLT. At step
503
described herein. At step
['3. The method according to claim 1, wherein the step of sending the message responding to the registration message to the OLT comprises: sending messages respectively responding to all of the intercepted registration messages to the OLT; and after sending the message responding to the registration message to the  OLT, the method further comprises: receiving second parameter information sent from the OLT, the second parameter information comprising ONU identification information; wherein the second parameter information comprising the ONU identification information is configured by the OLT according to the messages respectively responding to all of the intercepted registration messages, and the messages respectively responding to all of the intercepted registration messages comprise the first parameter information for defining self-uniqueness.']