Title:
WAVELENGTH DEFRAGMENTATION DEVICE, WAVELENGTH DEFRAGMENTATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/230125
Kind Code:
A1
Abstract:
The wavelength defragmentation device according to the present invention performs wavelength reallocation for paths in an optical transmission network and includes a storage unit that stores a path information DB and a wavelength allocation management DB, and a wavelength defragmentation functional unit that refers to the path information DB for an attribute of a path and performs wavelength reallocation for the path having the attribute through an operation corresponding to the attribute.
Inventors:
YOKOI HANAMI (JP)
KOSHIJI KOJUN (JP)
KANEKO YASUHARU (JP)
MATSUKAWA TATSUYA (JP)
ISHIZUKA MIKA (JP)
HAMANO TAKAFUMI (JP)
KOSHIJI KOJUN (JP)
KANEKO YASUHARU (JP)
MATSUKAWA TATSUYA (JP)
ISHIZUKA MIKA (JP)
HAMANO TAKAFUMI (JP)
Application Number:
PCT/JP2021/017034
Publication Date:
November 03, 2022
Filing Date:
April 28, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04J14/02; H04B10/27
Domestic Patent References:
| WO2021029013A1 | 2021-02-18 |
Other References:
PATEL, ANKITKUMAR N. ET AL.: "Defragmentation of transparent Flexible optical WDM (FWDM) networks", 2011 OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE., 6 March 2011 (2011-03-06), pages 1 - 3, XP031946534
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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