PON CHANNEL ESTABLISHMENT METHOD, ONU, PLT AND SYSTEM
FIG11 is an exemplary flowchart of a method for establishing channels for a passive optical network according to an embodiment of the present disclosure
FIG11 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 FIG11, 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 1101-1113:At step 1101, the OLT sends registration messages to the ONU.
flowchart
1104
repeated herein. At step
1107
1111
ONU itself. At step
1112
ONU normally. At step
1113
OLT. At step
1109
At step
1101
step
1110
downlink wavelength. At step
1106
repeated herein. At step
1102
OLT. At step
1103
repeated herein. At step
1108
ranging results. At step
1105
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.']