METHOD AND SYSTEM FOR ASSIGNING RESOURCES IN OPTICAL TRANSPORT NETWORKS
First Claim
1. A method for assigning resources in an optical transport network, comprising the steps of:
- determining a plurality of candidate paths each connecting a pair of nodes in an optical transport network, wherein each candidate path includes at least one optical link between nodes of the optical transport network;
determining a type of Media Channel Format to be used for each of the candidate paths;
determining an expected weight of each of the candidate paths, wherein the weights allow a relative estimate and comparison of traffic volume via the candidate paths;
assigning a spectrum share to each link of each of the candidate paths based on the determined Media Channel Formats to be used for the candidate paths and based on a comparison of the determined expected weights of the candidate paths contending for spectral capacity on the respective optical link; and
assigning a band spectrum to the Media Channel Format to be used by each of the candidate paths corresponding to the spectrum shares assigned to the optical links of the candidate paths, wherein the band spectrum assigned to a Media Channel Format of a candidate path applies to each of the at least one optical link coupling the pair of nodes connected by the candidate path.
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Accused Products
Abstract
The proposed invention is in the area of managing resources in optical transport networks, for example in the area of in-operation media channel format and spectrum management. For this purpose, the type of Media Channel Format is determined for each of a plurality of candidate paths, wherein each candidate path connects a pair of nodes in an optical transport network. Then, the expected weight describing traffic volume of each of the candidate paths is determined, and a spectrum share is assigned to each link of each of the candidate paths based on the determined Media Channel Formats and determined weights. In this way, spectrum shares assigned to different links and candidate paths can be used for efficiently assigning a band spectrum to each of the Media Channel Formats of the candidate paths.
3 Citations
15 Claims
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1. A method for assigning resources in an optical transport network, comprising the steps of:
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determining a plurality of candidate paths each connecting a pair of nodes in an optical transport network, wherein each candidate path includes at least one optical link between nodes of the optical transport network; determining a type of Media Channel Format to be used for each of the candidate paths; determining an expected weight of each of the candidate paths, wherein the weights allow a relative estimate and comparison of traffic volume via the candidate paths; assigning a spectrum share to each link of each of the candidate paths based on the determined Media Channel Formats to be used for the candidate paths and based on a comparison of the determined expected weights of the candidate paths contending for spectral capacity on the respective optical link; and assigning a band spectrum to the Media Channel Format to be used by each of the candidate paths corresponding to the spectrum shares assigned to the optical links of the candidate paths, wherein the band spectrum assigned to a Media Channel Format of a candidate path applies to each of the at least one optical link coupling the pair of nodes connected by the candidate path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification