Patent ID: 11910135
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An optical signal transmission method, comprising:
mapping a first optical data unit (ODU) frame to a first flexible tributary unit (TUflex) frame, wherein the first flexible tributary unit frame comprises a plurality of payload blocks;
mapping the first TUflex frame to a first optical payload unit (OPU) frame, wherein the payload blocks are distributed into a payload area of the first OPU frame;
mapping the first OPU frame to a second optical data unit frame, wherein a bit rate of the second optical data unit frame is greater than a bit rate of the first optical data unit frame;
mapping the second ODU frame to a first optical transport unit (OTU) frame; and
sending the first OTU frame.