OPTIMISATION OF PASSIVE OPTICAL NETWORKS
First Claim
1. A computer implemented method of designing a PON based network, the method comprising:
- receiving data representing a plurality of network nodes having cable interconnection routes;
determining a combination of core nodes from the network nodes, the core nodes being selected by allocating a combined cost to a series of core node combinations and selecting the lowest combined cost core node combination, the combined cost of each core node combination comprising a cost allocated for each of a number of core node selection criteria;
allocating a number of network nodes to each core node in the selected core node combination;
for each core node in the selected core node combination, determining a combination of PONS having respective cable interconnection routes for servicing the respective allocated nodes from the core node, the PONS being selected by allocating a combined cost to a series of PON combinations and selecting the lowest combined cost PON combination, the combined cost of each PON combination comprising a cost allocated to each PON within the respective combination for each of a number of PON selection criteria; and
outputting data representing each of the lowest cost PON combinations.
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Abstract
The present invention relates to communications network design, and in particular the use of passive optical networks (PONs) for optimising an existing large network infrastructure such as a backhaul network. The present invention provides a computer implemented method of designing a PON based network, the method comprising: receiving data representing a plurality of network nodes having cable interconnection routes; determining a combination of core nodes from the network nodes, the core nodes being selected by allocating a combined cost to a series of core node combinations and selecting the lowest combined cost core node combination, the combined cost of each core node combination comprising a cost allocated for each of a number of core node selection criteria; allocating a number of network nodes to each core node in the selected core node combination; for each core node in the selected core node combination, determining a combination of PONS having respective cable interconnection routes for servicing the respective allocated nodes from the core node, the PONS being selected by allocating a combined cost to a series of PON combinations and selecting the lowest combined cost PON combination, the combined cost of each PON combination comprising a cost allocated to each PON within the respective combination for each of a number of PON selection criteria; and outputting data representing each of the lowest cost PON combinations.
23 Citations
16 Claims
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1. A computer implemented method of designing a PON based network, the method comprising:
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receiving data representing a plurality of network nodes having cable interconnection routes; determining a combination of core nodes from the network nodes, the core nodes being selected by allocating a combined cost to a series of core node combinations and selecting the lowest combined cost core node combination, the combined cost of each core node combination comprising a cost allocated for each of a number of core node selection criteria; allocating a number of network nodes to each core node in the selected core node combination;
for each core node in the selected core node combination, determining a combination of PONS having respective cable interconnection routes for servicing the respective allocated nodes from the core node, the PONS being selected by allocating a combined cost to a series of PON combinations and selecting the lowest combined cost PON combination, the combined cost of each PON combination comprising a cost allocated to each PON within the respective combination for each of a number of PON selection criteria; andoutputting data representing each of the lowest cost PON combinations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. Computer apparatus for designing a PON based network for a plurality pf network nodes having cable interconnection routes, the apparatus comprising:
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means for determining a combination of core nodes from the network nodes, the core nodes being selected by allocating a combined cost to a series of core node combinations and selecting the lowest combined cost core node combination, the combined cost of each core node combination comprising a cost allocated for each of a number of core node criteria; means for allocating a number of network nodes to each core node in the selected core node combination; means for determining a combination of PONS for servicing the respective allocated network nodes to each respective selected core node, the PONS for each core node being selected by allocating a combined cost to a series of PON combinations and selecting the lowest combined cost PON combination, the combined cost of each PON combination comprising a cost allocated to each PON within the respective combination for each of a number of PON criteria.
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Specification