CN101227238B - Method and apparatus for multipoint fault protection - Google Patents
Method and apparatus for multipoint fault protection Download PDFInfo
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- CN101227238B CN101227238B CN2008100061404A CN200810006140A CN101227238B CN 101227238 B CN101227238 B CN 101227238B CN 2008100061404 A CN2008100061404 A CN 2008100061404A CN 200810006140 A CN200810006140 A CN 200810006140A CN 101227238 B CN101227238 B CN 101227238B
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Abstract
The invention provides a method and a device for protecting multi-point faults, wherein the method comprises following steps: firstly, existing a plurality of operations which are set on the customer side in an optical transmission system and need transmitting and protecting and existing a plurality of wave length in the optical transmission system, secondly, transferring the operations on the customer side on a corresponding circuit through an optical switch and an electric layer bus to protect faults when the customer side or the circuit sending side in the optical transmission system gets out of order, thereby the invention well realizes whole protection for the operations and removal of the faults on the customer side, protecting enforcement can be finished on a local site, the synchronized movement requirement for remote equipment is lowered, simultaneously, the faults on the customer side can be protected, and the whole protecting system lowers the complexity of the system and increases the reliability of the system.
Description
Technical field
The present invention relates to optical-fibre communications field, more specifically, relate to a kind of multipoint fault protection method and apparatus.
Background technology
Reliability requirement to optical transport network is increasingly high, and in order to guarantee the reliability of optical transmission system, industry has proposed the kinds of protect technology, and these resist technologies can be divided into the resist technology of photosphere and the resist technology of electricity layer.The resist technology of photosphere such as 1+1 Optical Channel Protection technology, 1+1 optical multiplexing section protection technology, two-fibre two-way ring light-channel shared protection technology etc.
For the protection of client side business, the resist technology of photosphere is to adopt the mode of optical switch to switch to alternate channel to the client side business; The resist technology of electricity layer is to share to alternate channel or switch to alternate channel through modes such as backboard electricity intersections.
But there is following problem in present resist technology for the protection of business: one professional damages and causes that protection switches, and need switch simultaneously with the place end by end in the source, and agreement complicacy, the link that relates to are many; When protection was switched, if monitor channel interrupts, then protection can be affected; And if only adopt optical layer protective technology or electricity layer resist technology, for comprehensive isolated fault point, the protection system of building is complicated, cost is high.
Summary of the invention
In order to satisfy in the optical transmission system protection demand to business; Be controlled at the principle of minimum zone according to fault as far as possible, the present invention proposes a kind of multipoint fault protection method and apparatus, the scope of its control fault; Make this earth fault this locality solve; Improve the reliability of system business protection, and make full use of the advantage of electricity layer protection photoreactive layer protection, reduced the complexity and the cost of protection system.
According to an aspect of the present invention; A kind of multipoint fault protection method is provided; It may further comprise the steps: step 1 is set in client side in the optical transmission system and exists a plurality of service needed to transmit and protect, and in optical transmission system, has a plurality of wavelength; And step 2, when the client side in the optical transmission system or circuit transmitter side break down, be forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus, thereby fault is protected client side.
In step 2, can carry out following processing: when a professional corresponding service passage of client side breaks down, business is switched to another service channel through array of photoswitch; Diverter switch through the corresponding integrated circuit board of another service channel gets service delivery on electricity layer bus with another service channel transmission; And the signal of the diverter switch of the corresponding integrated circuit board of the service channel that the breaks down business selecting to transmit from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down.
In addition, in step 2, can carry out following processing: when line failure of circuit transmitter side, the diverter switch through the corresponding integrated circuit board of circuit is delivered to the signal of business on the electricity layer bus; And the signal of the diverter switch of the another one integrated circuit board business selecting to transmit from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of another integrated circuit board.
In the present invention, can diverter switch be made as the business on the integrated circuit board is sent on the circuit corresponding with integrated circuit board, maybe can diverter switch be made as other business that sends from other integrated circuit board from electricity layer bus selection.
According to another aspect of the present invention; A kind of multipoint fault protection device also is provided; It comprises: module is set, and the client side that is used for being set in optical transmission system exists a plurality of service needed to transmit and protects, and in optical transmission system, has a plurality of wavelength; And protection module, be used for when the client side of optical transmission system or circuit transmitter side break down, being forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus, thereby fault being protected with client side.
Wherein, protection module can comprise: switch unit is used for when a professional corresponding service passage of client side breaks down, through array of photoswitch business being switched to another service channel; First transfer unit is used for through the diverter switch of the corresponding integrated circuit board of another service channel another service channel transmission being got service delivery to electricity layer bus; And first select retransmission unit, the signal of the business that is used for transmitting from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down.
In addition, protection module can comprise: second transfer unit, be used for when circuit sends line failure of example, and the diverter switch through the corresponding integrated circuit board of circuit is delivered to the signal of business on the electricity layer bus; And second select retransmission unit, the signal of the business that is used for transmitting from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of another integrated circuit board.
In the present invention, diverter switch can be used for the business on the integrated circuit board is sent to the circuit corresponding with integrated circuit board, other business that maybe can send from other integrated circuit board from electricity layer bus selection.
Therefore; Adopt the present invention; The site-local completion that is implemented in that has realized professional general protection, client side troubleshooting of faults, protection well gets final product, and has reduced the synchronization action requirement to remote equipment, simultaneously; Can also protect the line side fault, the whole protecting system reduced system complexity, improved the reliability of system.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to multipoint fault protection method of the present invention;
Fig. 2 is the principle schematic according to combination photosphere with the service protection of electricity layer resist technology of first embodiment of the invention;
Fig. 3 is according to the sketch map under the normal operation of the combination photosphere of first embodiment of the invention and the service protection of electricity layer resist technology;
Fig. 4 is according to the combination photosphere of first embodiment of the invention and the sketch map of when client side breaks down, protecting of electricity layer resist technology;
Fig. 5 is according to the combination photosphere of first embodiment of the invention and the sketch map of when the circuit transmitter side breaks down, protecting of electricity layer resist technology;
Fig. 6 is according to the combination photosphere of second embodiment of the invention and the sketch map of the service protection of electricity layer resist technology;
Fig. 7 is according to the sketch map under the normal operating conditions of the combination photosphere of second embodiment of the invention and the service protection of electricity layer resist technology;
Fig. 8 is according to the sketch map under the guard mode (client side breaks down or the circuit transmitter side breaks down) of the combination photosphere of second embodiment of the invention and the service protection of electricity layer resist technology; And
Fig. 9 is the block diagram according to multipoint fault protection device of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to multipoint fault protection method of the present invention.As shown in Figure 1, may further comprise the steps:
S102 is set in client side in the optical transmission system and exists a plurality of service needed to transmit and protect, and in optical transmission system, has a plurality of wavelength; And
S104 when the client side in the optical transmission system or circuit transmitter side break down, is forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus with client side, thereby fault is protected.
In S104, can carry out following processing: when a professional corresponding service passage of client side breaks down, business is switched to another service channel through array of photoswitch; Diverter switch through the corresponding integrated circuit board of another service channel gets service delivery on electricity layer bus with another service channel transmission; And the signal of the diverter switch of the corresponding integrated circuit board of the service channel that the breaks down business selecting to transmit from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down.
In addition, in S104, can carry out following processing: when line failure of circuit transmitter side, the diverter switch through the corresponding integrated circuit board of circuit is delivered to the signal of business on the electricity layer bus; And the signal of the diverter switch of the another one integrated circuit board business selecting to transmit from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of another integrated circuit board.
In the present invention, can diverter switch be made as the business on the integrated circuit board is sent on the circuit corresponding with integrated circuit board, or diverter switch is made as other business that sends from other integrated circuit board from electricity layer bus selection.
First embodiment
Fig. 2 is the principle schematic according to combination photosphere with the service protection of electricity layer resist technology of first embodiment of the invention; Fig. 3 is according to the sketch map under the normal operation of the combination photosphere of first embodiment of the invention and the service protection of electricity layer resist technology; Fig. 4 is according to the combination photosphere of first embodiment of the invention and the sketch map of when client side breaks down, protecting of electricity layer resist technology, and Fig. 5 is according to the combination photosphere of first embodiment of the invention and the sketch map of when the circuit transmitter side breaks down, protecting of electricity layer resist technology.Next combine Fig. 2 to Fig. 5 that the first embodiment of the present invention is described in detail, wherein, the transmission of client traffic dots.
As shown in Figure 2, suppose that client side has n service needed to transmit and protection, the wavelength number in the system has M, for the redundancy of protection is provided, generally requires N＜M.Under normal operation shown in Figure 3, client traffic 1 is transmitted by λ 2 by λ 1 transmission, client traffic 2 ... client traffic n is transmitted by λ n, supposes that λ m is the protection passage.The 100th, the light of the N:M array that opens the light; 200,300......M00 is the integrated circuit board that inserts client traffic; Client traffic through 1001,1002......100M passes to 200, the diverter switch of 300......M00 integrated circuit board; Be 2001 respectively, 3001......M001, diverter switch 2001,3001......M001 link together through the bus A of electricity layer.Diverter switch can be sent to the corresponding circuit wavelength of this integrated circuit board to the carrying client of this integrated circuit board, also can be from electricity layer other client traffic that bus A selection sends from other integrated circuit boards.
As shown in Figure 4, suppose that client side breaks down, the client traffic that the diverter switch of each integrated circuit board all selects this integrated circuit board to insert.Supposing the system finds that integrated circuit board n loaded service breaks down, and system can confirm to occur in the front and back of diverter switch.The client traffic that occurs in assumed fault inserts a side; Like the 100N channel failure; Array of photoswitch 100 switches to 100M to client traffic n; The client traffic that the diverter switch M001 of integrated circuit board M00 sends 100M is delivered on the electricity layer bus A, and the diverter switch N001 of integrated circuit board N00 selects to transmit the client traffic n signal of coming from electricity layer bus A, is forwarded to circuit wavelength X n.
As shown in Figure 5, assumed fault generation circuit sends a side, breaks down like N002; Then the diverter switch N001 of integrated circuit board N00 switches to electricity layer bus A to the signal of client traffic n, and the diverter switch M001 of integrated circuit board M00 selects to transmit the client traffic n signal of coming from electricity layer bus A, is forwarded to circuit wavelength X m; Meanwhile; The receiver of far-end also switches synchronously, carries out change action according to the method described above, so just the fault of line side N002 is protected.
Second embodiment
Fig. 6 is according to the combination photosphere of second embodiment of the invention and the sketch map of the service protection of electricity layer resist technology; Fig. 7 is according to the sketch map under the normal operating conditions of the combination photosphere of second embodiment of the invention and the service protection of electricity layer resist technology, and Fig. 8 is according to the sketch map under the guard mode (client side breaks down or the circuit transmitter side breaks down) of the combination photosphere of second embodiment of the invention and the service protection of electricity layer resist technology.Next combine Fig. 6 to Fig. 8 that the second embodiment of the present invention is described in detail.
Should be appreciated that Fig. 6 to Fig. 8 is the embodiment of a 2:2 protection.
As shown in Figure 6, suppose that a client side service protection system forms a protection system by the backboard signal of telecommunication transmission channel 40 of 30 of 10 (optical switches), 20 (work integrated circuit board), 30 (protection integrated circuit boards), integrated circuit board 20 and integrated circuit boards.Detection control module 204 is contained in integrated circuit board 20 inside, can detect the output signal of client side interface module 201 and the quality of output signals of diverter switch 202, judges whether to exist fault.Detection control module 304 is contained in integrated circuit board 30 inside, can detect the output signal of client side interface module 301 and the quality of output signals of diverter switch 302, judges whether to exist fault.The wavelength of integrated circuit board 20 is λ 1, and the wavelength of integrated circuit board 30 is the wavelength of λ 2.
As shown in Figure 7 during the system operate as normal; Optical switch 10 switches to 101 output ports to the client side business; After the client side receiver module 201 of integrated circuit board 20 is received client side signal, convert the signal of telecommunication to, the diverter switch 202 along 205 channel transfers in the plate to integrated circuit board 20 is delivered to 206 passages to signal; Entry-line side interface module 203 converts light signal to and enters into Optical Fiber Transmission.
When system protects; Be that client side breaks down or circuit transmitter side when breaking down, as shown in Figure 8, the client side interface module 201 of supposing integrated circuit board 20 damages or other reasons causes the signal existing problems on the passage 205; Detecting control module 204 finds after the Signal Degrade; Can communicate with the detection control module 304 of optical switch 10 and integrated circuit board 30: notice optical switch 10 switches to path 10 2 to the signal of client side, and the client side interface module 301 of integrated circuit board 30 receives client side signal simultaneously, converts the signal of telecommunication to; Be sent to the diverter switch 202 of integrated circuit board 20 through the passage 40 of backboard; Diverter switch 202 is broken off the signal of telecommunication of 205 transmission, delivers to 206 to the signal that passage 40 sends, and gets into Optical Fiber Transmission.
Fig. 9 is the block diagram according to multipoint fault protection device 900 of the present invention.As shown in Figure 9, it comprises: module 902 is set, and the client side that is used for being set in optical transmission system exists a plurality of service needed to transmit and protects, and in optical transmission system, has a plurality of wavelength; And protection module 904, be used for when the client side of optical transmission system or circuit transmitter side break down, being forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus, thereby fault being protected with client side.
Wherein, protection module 904 can comprise: switch unit is used for when a professional corresponding service passage of client side breaks down, through array of photoswitch business being switched to another service channel; First transfer unit is used for through the diverter switch of the corresponding integrated circuit board of another service channel another service channel transmission being got service delivery to electricity layer bus; And first select retransmission unit, the signal of the business that is used for transmitting from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down.
In addition, protection module 904 can comprise: second transfer unit, and when being used for line failure when the circuit transmitter side, the diverter switch through the corresponding integrated circuit board of circuit is delivered to the signal of business on the electricity layer bus; And second select retransmission unit, the signal of the business that is used for transmitting from electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of another integrated circuit board.
In the present invention, diverter switch can be used for the business on the integrated circuit board is sent to the circuit corresponding with integrated circuit board, other business that maybe can send from other integrated circuit board from electricity layer bus selection.
In sum; Adopt the present invention; The site-local completion that is implemented in that has realized professional general protection, client side troubleshooting of faults, protection well gets final product, and has reduced the synchronization action requirement to remote equipment, simultaneously; Can also protect the line side fault, the whole protecting system reduced system complexity, improved the reliability of system.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a multipoint fault protection method is characterized in that, may further comprise the steps:
Step 1 is set in client side in the optical transmission system and exists a plurality of service needed to transmit and protect, and in said optical transmission system, has a plurality of wavelength; And
Step 2 when the said client side in the optical transmission system or circuit transmitter side break down, is forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus with client side, thereby said fault is protected;
Wherein, in said step 2, handle below the execution: when a professional corresponding service passage of said client side breaks down, said business is switched to another service channel through array of photoswitch; The said service delivery that diverter switch through the corresponding integrated circuit board of said another service channel will said another service channel transmits is on said electricity layer bus; And the signal of the diverter switch of the corresponding integrated circuit board of the service channel that the breaks down business selecting to transmit from said electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down;
Perhaps, handle below in said step 2, carrying out: during line failure of said circuit transmitter side, the diverter switch through the corresponding integrated circuit board of said circuit is delivered to the signal of said business on the said electricity layer bus; And the signal of the diverter switch of the another one integrated circuit board business selecting to transmit from said electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of said another one integrated circuit board.
2. method according to claim 1 is characterized in that,
Diverter switch is made as the business on the integrated circuit board is sent on the circuit corresponding with said integrated circuit board; Or
Said diverter switch is made as other business that sends from other integrated circuit board from said electricity layer bus selection.
3. a multipoint fault protection device is characterized in that, comprising:
Module is set, and the client side that is used for being set in optical transmission system exists a plurality of service needed to transmit and protects, and in said optical transmission system, has a plurality of wavelength; And
Protection module is used for when the said client side of optical transmission system or circuit transmitter side break down, being forwarded on the corresponding line through array of photoswitch and the business of electricity layer bus with client side, thereby said fault being protected;
Wherein, said protection module comprises: switch unit is used for when a professional corresponding service passage of said client side breaks down, through array of photoswitch said business being switched to another service channel; First transfer unit is used for said service delivery that the diverter switch through the corresponding integrated circuit board of said another service channel will said another service channel transmits to said electricity layer bus; And first select retransmission unit, the signal of the business that is used for transmitting from said electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of the corresponding integrated circuit board of the service channel that breaks down;
Perhaps, said protection module comprises: second transfer unit, and when being used for line failure when said circuit transmitter side, the diverter switch through the corresponding integrated circuit board of said circuit is delivered to the signal of said business on the said electricity layer bus; And second select retransmission unit, the signal of the said business that is used for transmitting from said electricity layer bus, and be forwarded on the corresponding circuit of the diverter switch of another integrated circuit board.
4. device according to claim 3 is characterized in that, also comprises diverter switch, and said diverter switch is used for
Business on the integrated circuit board is sent on the circuit corresponding with said integrated circuit board; Or other business that sends from other integrated circuit board from said electricity layer bus selection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100061404A CN101227238B (en) | 2008-02-03 | 2008-02-03 | Method and apparatus for multipoint fault protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100061404A CN101227238B (en) | 2008-02-03 | 2008-02-03 | Method and apparatus for multipoint fault protection |
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| CN101227238A CN101227238A (en) | 2008-07-23 |
| CN101227238B true CN101227238B (en) | 2012-05-09 |
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| CN2008100061404A Expired - Fee Related CN101227238B (en) | 2008-02-03 | 2008-02-03 | Method and apparatus for multipoint fault protection |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800678B (en) * | 2010-03-12 | 2012-05-23 | 华为技术有限公司 | Microwave transmission method, device and system applying CCDP and XPIC |
| CN106572492B (en) * | 2015-10-13 | 2021-08-06 | 中兴通讯股份有限公司 | Radio remote unit and working method thereof |
| CN114696939B (en) * | 2022-03-24 | 2023-03-10 | 广州芯泰通信技术有限公司 | 200G terminal multiplexing board card supporting multi-service signals |
| CN115021803A (en) * | 2022-06-02 | 2022-09-06 | 中国电信股份有限公司 | Optical channel protection method, device and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529450A (en) * | 2003-09-30 | 2004-09-15 | 烽火通信科技股份有限公司 | Optical brancking-complexing node device based on wavelength or waveband protection |
| EP1496634A2 (en) * | 2003-07-07 | 2005-01-12 | Samsung Electronics Co., Ltd. | Self-healing wavelength division multiplexing passive optical network system |
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2008
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1496634A2 (en) * | 2003-07-07 | 2005-01-12 | Samsung Electronics Co., Ltd. | Self-healing wavelength division multiplexing passive optical network system |
| CN1529450A (en) * | 2003-09-30 | 2004-09-15 | 烽火通信科技股份有限公司 | Optical brancking-complexing node device based on wavelength or waveband protection |
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| CN101227238A (en) | 2008-07-23 |
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