Patent ID: 7936788

Claim:
A signal transport method applied in an optical transport network, comprising: presetting frame structures for an optical channel payload unit OPUx and an optical channel data unit ODUx of a 5G path transporting constant-bit-rate CBR5G rate-level signals in an optical channel layer; and according to the frame structures of the optical channel payload unit OPUx and the optical channel data unit ODUx, mapping and multiplexing the constant-bit-rate CBR5G rate-level signals to the optical channel layer of the optical transport network for transport through the optical transport network, wherein the step of presetting further comprises: presetting an optical data tributary unit ODTUx2 to map and multiplex the constant-bit-rate CBR5G rate-level signals transported through the 5G path in the optical channel layer to a 10G path; and wherein the step of mapping and multiplexing the constant-bit-rate CBR5G signals comprises: mapping the constant-bit-rate CBR5G rate-level signals to the optical channel payload unit OPUx; mapping the optical channel payload unit OPUx to the optical channel data unit ODUx; mapping the optical channel data unit ODUx to the optical data tributary unit ODTUx2; and mapping and multiplexing the optical data tributary unit ODTUx2 to a corresponding timeslot of an optical channel data tributary unit group ODTUG2 for transport through the optical transport network.