Data transmission method and apparatus in optical transport network
AssigneeHuawei Technologies Co., Ltd.
InventorsWei SU, Qiuyou WU
Life of this patent
Estimating the term…
Abstract
A data transmission method in an optical transport network includes: mapping first-type service data to a payload block at a specific location in a plurality of consecutive payload blocks, where the plurality of consecutive payload blocks occupy a payload area of an optical data unit (ODU) frame; mapping second-type service data to a payload block at any location in the plurality of consecutive payload blocks other than the at least one specific location; mapping the ODU frame to an optical transport unit (OTU) frame or a flexible OTN (FlexO) frame; and sending the OTU frame or the FlexO frame. In an applicable scenario, service data is transmitted in a hybrid manner.
Claims20
A data transmission method in an optical transport network (OTN), comprising:
- mapping first-type service data to at least one payload block at at least one specific location in a plurality of consecutive payload blocks, wherein the plurality of consecutive payload blocks occupy a payload area of an optical data unit (ODU) frame;
- mapping second-type service data to at least one payload block that is at any location in the plurality of consecutive payload blocks other than the at least one specific location;
- mapping the ODU frame to an optical transport unit (OUT) frame or a flexible OTN (FlexO) frame;
- and
- sending the OTU frame or the FlexO frame.
A data transmission method in an optical transport network (OTN), the method comprising:
- receiving an optical transport unit (OUT) frame or a flexible OTN (FlexO) frame;
- demapping the OTU frame or the FlexO frame, to obtain an optical data unit (ODU) frame, wherein a payload block at a specific location in a plurality of consecutive payload blocks in a payload area of the ODU frame transports first-type service data, and a payload block at a location other than the specific location in the plurality of consecutive payload blocks transports second-type service data;
- and
- obtaining the first-type service data and the second-type service data from the plurality of consecutive payload blocks.
An optical transport network (OTN) apparatus, comprising:
- a processor, configured to:
- map first-type service data to a payload block at a specific location in a plurality of consecutive payload blocks, wherein the plurality of consecutive payload blocks occupy a payload area of an optical data unit ODU frame;
- map second-type service data to a payload block that is at any location in the plurality of consecutive payload blocks other than the specific location;
- and
- map the ODU frame to an optical transport unit (OUT) frame or a flexible OTN (FlexO) frame;
- and
- a transceiver, configured to:
- send the OTU frame or the FlexO frame.
Dependencies are inferred from the claim text.