The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 22, 2022

Filed:

Sep. 23, 2020
Applicant:

Fujitsu Limited, Kawasaki, JP;

Inventors:

Xi Wang, Murphy, TX (US);

Nannan Wang, Allen, TX (US);

Paparao Palacharla, Richardson, TX (US);

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/50 (2006.01); H04L 12/28 (2006.01); H04L 12/64 (2006.01); H04L 67/1061 (2022.01); H04L 45/50 (2022.01); H04L 45/42 (2022.01); H04L 61/4541 (2022.01);
U.S. Cl.
CPC ...
H04L 12/50 (2013.01); H04L 12/2801 (2013.01); H04L 12/64 (2013.01); H04L 45/42 (2013.01); H04L 45/50 (2013.01); H04L 61/4541 (2022.05); H04L 67/1063 (2013.01);
Abstract

Disclosed methods for network modernization include obtaining a list of end-to-end circuits carried in a circuit-switched network, calculating, for each circuit, an early retirement credit (ERC) score and a circuit load factor (CLF) score, selecting, dependent on the ERC and CLF scores, a circuit to migrate to a new network, adding the selected circuit to a circuit migration sequence, and removing the circuit from the list. The ERC score represents the number of circuit-switching units on which no circuits would be carried and that would remain in the network following its removal. The CLF score represents an average number of circuits that would be carried on each circuit-switching unit currently traversed by the circuit following its removal. When two circuits have the highest ERC score, the circuit with the lowest CLF score is selected for migration. The method is repeated until the list is empty.


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