Optical transmission apparatus and optical reception apparatus
AssigneeMitsubishi Electric Corporation
InventorsYoshiaki KONISHI, Kazuo KUBO
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Abstract
An optical transmission apparatus that accommodates client signals in a line signal, includes: an OPUn mapper unit that receives and maps the client signals; and a mapping control unit that determines the number of pieces of client data to be mapped to a payload portion and determines the timing to insert client data and information on the number of pieces of client data into the payload portion to control mapping performed in the OPUn mapper unit.
Claims3
An optical transmission apparatus that accommodates client signals in a line signal, the optical transmission apparatus comprising:
- a mapper unit that receives and maps the client signals;
- and
- a mapping control unit that determines a number of pieces of client data to be mapped to a payload portion and determines a timing to insert client data and information on the number of pieces of client data into the payload portion to control mapping performed in the mapper unit.
An optical reception apparatus that receives a line signal in which client signals are accommodated, the optical reception apparatus comprising:
- a separation unit that separates a payload portion from a signal obtained by performing an overhead termination process on the line signal;
- a demapper unit that reproduces the client signals by using client data and information on a number of pieces of client data that are included in the payload portion;
- a line extraction clock unit that extracts a frequency of the line signal from the payload portion and outputs the extracted line signal frequency to the separation unit and the demapper unit;
- and
- a client recovery clock unit that recovers a frequency of the client signal from the client data and outputs the recovered client signal frequency to the demapper unit.
Dependencies are inferred from the claim text.