Title:
A SYSTEM AND METHOD FOR AVOIDING SELF-EXCITATION OF OPTICAL RING NET CHANNEL SHARING PROTECTION
Document Type and Number:
WIPO Patent Application WO/2008/052398
Kind Code:
A1
Abstract:
A system and method for avoiding the self-excitation of optical ring net channel sharing
protection is related to a system and method for avoiding the self-excitation in
the ring net of optical transmission, and it can solve the problem that the existing method
for suppressing the self-excitation can reduce the signal-to-noise ratio or
the operation flexibility is bad. The system for avoiding self-excitation of
optical ring net channel sharing protection adds vibration-resistant app to
the protection path, and changes the protection path by that the vibration-resistant app
is in vibration-resistant and through states, and enable that the protection path
can not close to a ring. The method for avoiding self-excitation of optical ring
net channel sharing protection includes: (1) the amplifying unit detects the
line state information in real time, and transmits it to the auto protection-switch control
unit; (2) the auto protection-switch control unit control the vibration-resistant app
switch between vibration-resistant and through states based on the line state
information. The invention is mainly applied to the double-fiber and bidirectional channel
sharing protection system, realizes the protection switch function and avoids
the self-excitation of the ring effectively.
Inventors:
WEI XIAOQIANG (CN)
ZHANG NAIGANG (CN)
ZHANG NAIGANG (CN)
Application Number:
PCT/CN2006/003780
Publication Date:
May 08, 2008
Filing Date:
December 30, 2006
Export Citation:
Assignee:
ZTE CORP (CN)
WEI XIAOQIANG (CN)
ZHANG NAIGANG (CN)
WEI XIAOQIANG (CN)
ZHANG NAIGANG (CN)
International Classes:
H04B10/02
Foreign References:
| CN1186577A | 1998-07-01 | |||
| CN1529450A | 2004-09-15 | |||
| US4704713A | 1987-11-03 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (Tower A Indo Building,A48 Zhichun Road,Haidian District, Beijing 8, CN)
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