Title:
OPTICAL NETWORK SYSTEM, OPTICAL NODE DEVICE, AND OPTICAL NETWORK CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2016/157801
Kind Code:
A1
Abstract:
Because a network interruption occurs and data is lost when wavelength defragmentation is performed during the operation of an optical network, the optical network control method according to the present invention synchronously performs: optical sub-carrier change processing that monitors the amount of data in a client signal transmitted using a plurality of optical sub-carriers, and in response to the fluctuation of the amount of data, changes the active optical sub-carrier used for the transmission of the client signal transmission among the plurality of optical sub-carriers; and remapping processing that remaps the client signal to the active optical sub-carrier after the change.
Inventors:
HINO TOMOYUKI (JP)
TAJIMA AKIO (JP)
TAKESHITA HITOSHI (JP)
FUJISAWA SHINSUKE (JP)
TAJIMA AKIO (JP)
TAKESHITA HITOSHI (JP)
FUJISAWA SHINSUKE (JP)
Application Number:
PCT/JP2016/001587
Publication Date:
October 06, 2016
Filing Date:
March 18, 2016
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04J14/00; H04B10/27; H04J14/02
Other References:
MOTOYOSHI SEKIYA ET AL.: "Photonic Network Defragmentation Technology Improving Resource Utilization during Operation", vol. 64, no. 5, September 2013 (2013-09-01), pages 564 - 572, ISSN: 0016-2515
GUOYING ZHANG ET AL.: "A Survey on OFDM-Based Elastic Core Optical Networking", IEEE COMMUNICATIONS SURVEYS & TUTORIALS, vol. 15, no. 1, 2013, pages 65 - 87, XP011493333, ISSN: 1553-877X
TOSHIO KATO ET AL.: "Hacho Path Switching ni yoru Kaisogata IP/WDM Network no Teian", DAI 4 KAI PHOTONIC NETWORK BASE TO SURU JISEDAI INTERNET GIJUTSU (PNI) KENKYUKAI PNI2000-16 TO 30, 2000, pages 52 - 57
SUNNY SHAKYA ET AL.: "Virtual Network Embedding and Reconfiguration in Elastic Optical Networks", IEEE GLOBAL COMMUNICATIONS CONFERENCE 2014 (GLOBECOM 2014, 2014, pages 2160 - 2165, XP011622463, ISSN: 1930-529X
HUNG NGUYEN TAN ET AL.: "Seamless Spectral Defragmentation of Nyquist OTDM-WDM Signals in Add-Drop Node for All-Optical Elastic Network", ECOC 2013, September 2013 (2013-09-01), ISBN: 978-1-84919-759-5
GUOYING ZHANG ET AL.: "A Survey on OFDM-Based Elastic Core Optical Networking", IEEE COMMUNICATIONS SURVEYS & TUTORIALS, vol. 15, no. 1, 2013, pages 65 - 87, XP011493333, ISSN: 1553-877X
TOSHIO KATO ET AL.: "Hacho Path Switching ni yoru Kaisogata IP/WDM Network no Teian", DAI 4 KAI PHOTONIC NETWORK BASE TO SURU JISEDAI INTERNET GIJUTSU (PNI) KENKYUKAI PNI2000-16 TO 30, 2000, pages 52 - 57
SUNNY SHAKYA ET AL.: "Virtual Network Embedding and Reconfiguration in Elastic Optical Networks", IEEE GLOBAL COMMUNICATIONS CONFERENCE 2014 (GLOBECOM 2014, 2014, pages 2160 - 2165, XP011622463, ISSN: 1930-529X
HUNG NGUYEN TAN ET AL.: "Seamless Spectral Defragmentation of Nyquist OTDM-WDM Signals in Add-Drop Node for All-Optical Elastic Network", ECOC 2013, September 2013 (2013-09-01), ISBN: 978-1-84919-759-5
Attorney, Agent or Firm:
SHIMOSAKA, NAOKI (JP)
Naoki Shimosaka (JP)
Naoki Shimosaka (JP)
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