Patent ID: 9590800
Date: 2017-03-07
CPC Classifications: H04J,H04L

Claim:
1. A multilevel modulation optical transceiver for distributing an OTN frame defined by ITU-T to a plurality of lanes for transmission, the multilevel modulation optical transceiver comprising: an MLD transmission processing circuitry for performing lane rotation processing defined by OTN-MLD on the OTN frame; and a data replication processing circuitry for performing data replication processing involving data replication between the plurality of lanes on the OTN frame after being subjected to the lane rotation processing, the multilevel modulation optical transceiver further comprising a data rearrangement processing circuitry arranged at a preceding stage of the MLD transmission processing circuitry, for performing data rearrangement processing of replicating, in advance, a frame synchronization pattern of an overhead of the OTN frame before being subjected to the lane rotation processing from a first lane that has the overhead to another lane that does not have the overhead, and of saving a payload to be overwritten with the frame synchronization pattern to a reserved area of the overhead so as to enable the payload to be restored on a reception side, wherein the MLD transmission processing circuitry performs the lane rotation processing on the OTN frame after being subjected to the data rearrangement processing by the data rearrangement processing circuitry.