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

Claim 12:
13. An optical signal transmission device, comprising:
a processor; and
a memory coupled to the processor and configured to store a computer program comprising instructions that when invoked by the processor cause the optical signal transmission device to:
map a first optical data unit (ODU) frame to a first flexible tributary unit (TUflex) frame, wherein the first TUflex frame comprises a plurality of payload blocks;
map 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;
map the first OPU frame to a second ODU frame, wherein a bit rate of the second ODU frame is greater than a bit rate of the first ODU frame;
map the second ODU frame to a first optical transport unit (OTU) frame; and
send the first OTU frame.