Title:
NETWORK MANAGEMENT DEVICE, COMMUNICATION DEVICE, NETWORK MANAGEMENT METHOD, AND NETWORK MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/201699
Kind Code:
A1
Abstract:
The present invention provides a network management device, a communication device, and a network management method that make it possible to improve a transmission capacity. A network management device (NMS) according to the present invention is provided with an insertion control unit (11) and a branch control unit (12). In an optical communication network (100) having a plurality of communication devices (NE) connected via a transmission path in which WDM signal light obtained by subjecting a plurality of optical signals to wavelength division multiplexing is transmitted, when a first communication device (NE) inserts an optical signal into WDM signal light, the insertion control unit (11) controls the first communication device (NE) so that a plurality of optical signals to be branched by a second communication device (NE) are inserted to be adjacent to a wavelength band sandwiched between guard bands, and when the second communication device (NE) branches an optical signal from the WDM signal light, the branch control unit (12) controls the second communication device (NE) so that the plurality of optical signals inserted to be adjacent to a wavelength band sandwiched between guard bands are branched.
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Inventors:
OTA MORIHIKO (JP)
Application Number:
PCT/JP2021/047759
Publication Date:
September 29, 2022
Filing Date:
December 23, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04J14/02; H04B10/079
Foreign References:
| US20190313168A1 | 2019-10-10 | |||
| US20210021340A1 | 2021-01-21 |
Other References:
HUNG NGUYEN TAN, KEN TANIZAWA, TAKASHI INOUE, TAKAYUKI KUROSU, AND SHU NAMIKI: "No guard-band wavelength translation of Nyquist OTDM-WDM signal for spectral defragmentation in an elastic add–drop node", OPTICS LETTERS, vol. 38, no. 17, 1 September 2013 (2013-09-01), US , pages 3287 - 3290, XP001583944, ISSN: 0146-9592, DOI: 10.1364/OL.38.003287
EIRA A.; PEDRO J.; PIRES J.: "On the impact of optimized guard-band assignment for superchannels in flexible-grid optical networks", OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE (OFC/NFOEC), 2013, IEEE, 17 March 2013 (2013-03-17), pages 1 - 3, XP032679012, ISBN: 978-1-4799-0457-0, DOI: 10.1364/OFC.2013.OTu2A.5
EIRA A.; PEDRO J.; PIRES J.: "On the impact of optimized guard-band assignment for superchannels in flexible-grid optical networks", OPTICAL FIBER COMMUNICATION CONFERENCE AND EXPOSITION AND THE NATIONAL FIBER OPTIC ENGINEERS CONFERENCE (OFC/NFOEC), 2013, IEEE, 17 March 2013 (2013-03-17), pages 1 - 3, XP032679012, ISBN: 978-1-4799-0457-0, DOI: 10.1364/OFC.2013.OTu2A.5
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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