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Title:
A METHOD, EQUIPMENT AND SYSTEM FOR SHARING PROTECTION OF GROUPED OPTICAL CHANNELS
Document Type and Number:
WIPO Patent Application WO/2007/071200
Kind Code:
A1
Abstract:
A method, equipment and system for sharing protection of grouped optical channels, in which, takes the network node as the source node, the middle node and/or the host node and divides the influenced optical wavelength channels into a source optical channel set, a host optical channel set and a middle node optical channel set; then separates the source optical channel set from the protection channel of the protection fiber selectively to be converted from the working fiber to the protection fiber to be transmitted, separates the host optical channel set from the channel of the protection channel selectively to end at the host node; passes through the channel set of the middle node channel set to the next node. Correspondingly, this invention also provides a multi-grouped optical channel share protection devices and a system thereof. Only one pair of multi direction wavelength select device is needed to realize the shared protection of the entire optical wavelength channels of one node, it is not necessary that one pair of wavelength channel is set with one independent wavelength protection rotating loop unit, the cost and the complexity do not relate with the optical wavelength protection channel shared protection rotating loop request.

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Inventors:
LI CONGQI (CN)
Application Number:
PCT/CN2006/003556
Publication Date:
June 28, 2007
Filing Date:
December 22, 2006
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
LI CONGQI (CN)
International Classes:
H04B10/032
Foreign References:
CN1847893A2006-10-18
CN1416234A2003-05-07
CN1666564A2005-09-07
US6898376B12005-05-24
US6847607B12005-01-25
Other References:
None
See also references of EP 1965514A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (Scitech Place No. 22, Jian Guo Men Wai Ave, Chao Yang District Beijing 4, CN)
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