US 12,739,049 B2 · Optical signal transmission method and apparatus

Abstract

An optical signal transmission method and an apparatus are provided, to reduce processing complexity while maximizing bandwidth utilization. An OPUk multiplexing frame with a bit rate greater than 1.25 Gbps is constructed by using a structure of an OPU0 multiplexing frame, so that the structure of the OPU0 multiplexing frame can be reused by a structure of the OPUk multiplexing frame, and the structure of the OPUk multiplexing frame is aligned with the structure of the OPU0 multiplexing frame. The OPUk multiplexing frame includes an integer multiple of OPUk frames, and a boundary of the OPUk multiplexing frame remains aligned with a boundary of the OPUk frame. According to this application, when mapping an OSU frame, an OTN device may map the OSU frame to the OPUk multiplexing frame based on the reused structure of the OPU0 multiplexing frame.

Claims28

Dependent claims

An optical signal transmission method comprising:

mapping an optical service unit frame to an optical payload unit (OPUk) multiplexing frame,
wherein a bit rate of the OPUk multiplexing frame is greater than 1.25 Gbps,
wherein the OPUk multiplexing frame consists of M1*N OPUk frames,
wherein a payload area of the OPUk multiplexing frame comprises P payload blocks, and P is N times of P0, and
wherein P0 is a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1 OPU0 frames;
or P0 is 1/M2 of a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1*M2 OPU0 frames, wherein N is an integer greater than 1, M1 is an integer greater than or equal to 1, and M2 is an integer greater than 1;
mapping the M1*N OPUk frames to M1*N optical data unit ODUk frames one by one;
and
sending the M1*N ODUk frames.

6 more elements

A chip configured to:

map an optical service unit frame to an optical payload unit (OPUk) multiplexing frame;
wherein a bit rate of the OPUk multiplexing frame is greater than 1.25 Gbps,
wherein the OPUk multiplexing frame consists of M1*N OPUk frames,
wherein a payload area of the OPUk multiplexing frame comprises P payload blocks, and P is N times of P0, and
wherein P0 is a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1 OPU0 frames;
or P0 is 1/M2 of a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1*M2 OPU0 frames, wherein N is an integer greater than 1, M1 is an integer greater than or equal to 1, and M2 is an integer greater than 1;
map the M1*N OPUk frames to M1*N optical data unit ODUk frames one by one;
and
send the M1*N ODUk frames.

6 more elements

An optical signal transmission apparatus comprising a processor and an optical transceiver, wherein the processor is configured to:

send an optical transport network (OTN) frame by cooperating with the optical transceiver,
map an optical service unit frame to an optical payload unit (OPUk) multiplexing frame;
wherein a bit rate of the OPUk multiplexing frame is greater than 1.25 Gbps,
wherein the OPUk multiplexing frame consists of M1*N OPUk frames,
wherein a payload area of the OPUk multiplexing frame comprises P payload blocks, and P is N times of P0, and
wherein P0 is a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1 OPU0 frames;
or P0 is 1/M2 of a quantity of payload blocks comprised in an OPU0 multiplexing frame, and the OPU0 multiplexing frame comprises M1*M2 OPU0 frames, wherein N is an integer greater than 1, M1 is an integer greater than or equal to 1, and M2 is an integer greater than 1;
map the M1*N OPUk frames to M1*N optical data unit ODUk frames one by one;
and
send the M1*N ODUk frames.

7 more elements

Dependencies are inferred from the claim text.

Optical signal transmission method and apparatus

Life of this patent

Optical signal transmission method and apparatus

Life of this patent

Abstract

Claims28