Transmission apparatus for optical transport network, and staff control method therefor
AssigneeFujitsu Limited
InventorsToshiaki Okubo, Toru Katagiri, Hiroyuki Honma
Life of this patent
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Abstract
A transmission apparatus for an optical transport network includes maps client data to a payload of an optical transport unit in order to obtain a higher layer frame generated based on a clock on the optical transport network side, and sends the higher layer frame to the optical transport network. A Cn value indicating an amount of the client data to be mapped to the payload of the optical transport unit is computed based on a counted value, counted using a clock of the client data, of a time period corresponding to the payload of the optical transport unit in the higher layer frame generated using a clock of the optical transport network.
Claims12
A transmission apparatus for an optical transport network, comprising:
- a mapping unit configured to map client data to a payload of an optical transport unit in order to obtain a higher layer frame generated based on a clock on the optical transport network side;
- and
- an interface unit configured to send the higher layer frame to the optical transport network,
- wherein the mapping unit includes a Cn computing unit configured to compute a Cn value indicating an amount of the client data to be mapped to the payload of the optical transport unit, based on a counted value, counted using a clock of the client data, of a time period corresponding to the payload of the optical transport unit in the higher layer frame generated using a clock of the optical transport network, and
- wherein information of the Cn value computed by the Cn computing unit is mapped to an overhead of the optical transport unit.
A stuff control method to be implemented in a transmission apparatus for an optical transport network, comprising:
- mapping client data to a payload of an optical transport unit in order to obtain a higher layer frame generated based on a clock on the optical transport network side;
- sending the higher layer frame to the optical transport network;
- and
- computing a Cn value indicating an amount of the client data to be mapped to the payload of the optical transport unit, based on a counted value, counted using a clock of the client data, of a time period corresponding to the payload of the optical transport unit in the higher layer frame generated using a clock of the optical transport network,
- wherein information of the Cn value computed by the computing is mapped to an overhead of the optical transport unit.
Dependencies are inferred from the claim text.