Data transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsWei Su, Qiuyou Wu, Huaping Qing
Life of this patent
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Abstract
This application provides a data transmission method and apparatus. The method includes: processing, by a network device, a to-be-sent optical data unit ODU to obtain another ODU, where a bit rate of the another ODU is lower than a bit rate of the ODU; and sending, by the network device, the another ODU. In embodiments of this application, the ODU is processed to obtain the another ODU with a lower bit rate, and this helps reduce a rate increase when service data is transmitted in an OTN, so as to reduce an OTN interface rate and OTN costs.
Claims12
A data transmission method, comprising:
- obtaining a first optical data unit (ODU);
- obtaining a second ODU based on performing 256b/257b encoding on the first ODU, wherein a bit rate of the second ODU is lower than a bit rate of the first ODU, and wherein the second ODU has a frame structure or an encoding mode different from the first ODU;
- mapping the second ODU to a third ODU having a bit rate of n*100Gigabit per second (Gbps), where n is a positive integer;
- and
- sending the third ODU.
A data transmission method, comprising:
- obtaining a first service data;
- obtaining a compressed service data based on processing the first service data by using 256b/257b encoding;
- mapping the compressed service data to a flexible optical transport network (FlexO) frame;
- and
- sending the FlexO frame.
A network device, comprising:
- at least one processor and a transceiver coupled to the at least one processor, wherein the at least one processor is configured to:
- obtain a first service data;
- obtain a compressed service data based on processing the first service data by using 256b/257b encoding;
- map the compressed service data to a flexible optical transport network (FlexO) frame;
- and
- send the FlexO frame to a transceiver;
- and wherein the transceiver is configured to:
- receive the FlexO frame and send the FlexO frame.
Dependencies are inferred from the claim text.