Title:
EFFICIENT NETWORK UTILIZATION USING OPTICALLY SWITCHED SUPERCHANNELS
Document Type and Number:
WIPO Patent Application WO/2018/068726
Kind Code:
A1
Abstract:
A method for constructing an optical network includes connecting each of a plurality of nodes in an optical network to an optical switching central node via a set of optical superchannels, wherein each of the optical superchannels includes of a set of subchannels and has a bounded data rate, and wherein the optical switching central node is configured to perform wavelength selective optical switching among the superchannels on a subchannel basis without spectrum contention. Moreover, rearrangement (or "permutation" ) of the subchannels of the superchannels connected to the n sites may be performed to minimize the total spectral bandwidth used by the superchannels.
Inventors:
LI GUANGZHI (US)
LIU XIANG (US)
LIU XIANG (US)
Application Number:
PCT/CN2017/105690
Publication Date:
April 19, 2018
Filing Date:
October 11, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04Q11/00
Domestic Patent References:
WO2015190328A1 | 2015-12-17 |
Foreign References:
US20150215688A1 | 2015-07-30 | |||
US20150333863A1 | 2015-11-19 | |||
CN104469560A | 2015-03-25 | |||
EP2757714A1 | 2014-07-23 | |||
US20130045006A1 | 2013-02-21 |
Other References:
ZAMI, THIERRY ET AL., BENEFIT OF PURE NXM WSS FOR OPTICAL MULTIFLOW APPLICATION, 31 December 2013 (2013-12-31), XP032427108
YOU, SHANHONG ET AL.: "Seamless Sub-Band Wavelength Conversion of Tb/s-Class CO- OFDM Superchannels", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 26, no. 8, 15 April 2014 (2014-04-15), XP011544152
See also references of EP 3520431A4
YOU, SHANHONG ET AL.: "Seamless Sub-Band Wavelength Conversion of Tb/s-Class CO- OFDM Superchannels", IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 26, no. 8, 15 April 2014 (2014-04-15), XP011544152
See also references of EP 3520431A4
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