CN102655470A - Method and system for realizing service scheduling of node in optical transmission network - Google Patents
Method and system for realizing service scheduling of node in optical transmission network Download PDFInfo
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- CN102655470A CN102655470A CN2011100500827A CN201110050082A CN102655470A CN 102655470 A CN102655470 A CN 102655470A CN 2011100500827 A CN2011100500827 A CN 2011100500827A CN 201110050082 A CN201110050082 A CN 201110050082A CN 102655470 A CN102655470 A CN 102655470A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
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Abstract
The invention provides a method and a system for realizing service scheduling of node in an optical transmission network. The method comprises the steps of: acquiring service to be scheduled of each plane in N paths of service after receiving N paths of services; outputting all services to be scheduled in the same plane at the same moment, wherein outputting time of services to be scheduled in any two planes is different; conducting cross scheduling on the services to be scheduled in planes by adopting (N*n) order cross matrix respectively; and outputting services handled through cross scheduling, wherein N and N are integers no less than 2, and n is bit width from serial data to parallel data.
Description
Technical field
The present invention relates to optical communication field, relate in particular to a kind of in optical transfer network node realize the method and system of service dispatching.
Background technology
Optical transfer network (OTN) network is because the raising of line speed and the use of wavelength division multiplexing make power system capacity unprecedentedly improve, and wire rate can reach 40G, 100G now.And the granularity of service dispatching is required relatively thinner, and require to reach the hundred M orders of magnitude, like this cross chips capacity requirement is wanted high, the scheduling particle requirement is thin more.Make it possible to use single-chip to accomplish cross scheduling and more and more have challenge.
The patent No. is the patent of CN200810189670.7, in order to accomplish cross scheduling, business is cut into slices, and uses a plurality of cross chips cascades, and each cross chips uses the CLOS framework.Though this processing method can realize without hindrance intersection, can reduce the scheduling particle of system, can not adapt to the OTN networks development.
On the other hand, it is also increasingly high that the centralized dispatching of OTN network requires, even need to set up Trunked Radio System, requires the business of Different Plane can be in same node uniform dispatching.This just requires cross chips to have the adaptive capacity of Different Plane simultaneously.
Aspect chi structure, two kinds of frameworks of CLOS and bitslice are arranged.
For three grades of CLOS cross matrixes of NXN, the input N road output of N road.First order crosspoint has n input, m output, and total N/n, the second level is N/n input and output, total m, the third level has m input and n output, N/n altogether.
When m＜n, be strict blocking network.Can not satisfy the without hindrance characteristic of OTN system.
When 2n-1＞m >=n, for rearrangeable clog-free.But along with increasing of port, search time and efficient all can not meet the demands.
When m >=2n-1, without hindrance for strictness, but under the multicast situation, certain blocking rate is arranged.So can not meet the demands.
Though and the bitslice framework is larger, because its without hindrance characteristic and configuration property easily are adapted to the OTN networks development.
Summary of the invention
Provided by the invention in optical transfer network node realize the method and system of service dispatching, the technical problem that solve are how to realize the strict without hindrance minimum hundred M rank cross schedulings of big capacity OTN system and can realize multilevel cross scheduling at a node.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of in optical transfer network node realize comprising the method for service dispatching:
After receiving N road business, obtain the business that each plane need be dispatched in the business of said N road;
Whole business of the required scheduling in same plane are exported at synchronization, and the output time of the business that wherein any two planes need be dispatched is different;
Adopt (N*n) rank cross matrix respectively the business that each plane need be dispatched to be carried out cross scheduling;
Export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
Preferably, said method also has following characteristics: the business that said employing (N*n) rank cross matrix need be dispatched each plane respectively carries out also comprising before the cross scheduling:
At synchronization whole business of the required scheduling in same plane are carried out verification.
Preferably, said method also has following characteristics: saidly at synchronization whole business of the required scheduling in same plane are carried out checking procedure and comprise:
The first identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the first identical scrambler sequence that whole business of the required scheduling in same plane are carried out scramble process at synchronization.
Preferably, said method also has following characteristics: the business procedure after this cross scheduling of said output is handled comprises:
The second identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the second identical scrambler sequence that whole business of the required scheduling in same plane are carried out scrambling process at synchronization.
A kind of in optical transfer network node realize the system of service dispatching, comprise N receiving system, a skewing mechanism, a synchronous signal generation device and with N receiving system synchronizer and dispensing device one to one, wherein:
Receiving system is used to receive one tunnel business;
Synchronization signal generation apparatus; Be used for obtaining the business that each plane of business, said N road need be dispatched; And sending synchronizing signal respectively to the whole professional corresponding synchronizer of the required scheduling in same plane at synchronization, the output time of the business that wherein any two planes need be dispatched is different;
Synchronizer is used to preserve the business that said receiving system sends, and after the synchronizing signal that receives said synchronization signal generation apparatus transmission, exports said business;
Skewing mechanism is used for adopting (N*n) rank cross matrix that the business of synchronizer synchronization output is carried out cross scheduling;
Dispensing device is used to export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
Preferably, said system also has following characteristics: said system also comprises:
With N receiving system calibration equipment one to one, be used for whole business of the required scheduling in same plane being carried out verification at synchronization.
Preferably, said system also has following characteristics: said system also comprises:
One first scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said calibration equipment also comprises:
Descrambling module, the scrambler sequence that is used to adopt the first scrambler sequence generation device to generate is carried out scramble process to the business that receives.
Preferably, said system also has following characteristics:
Said system also comprises:
One second scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said dispensing device also comprises:
Scrambling apparatus, the business after the scrambler sequence that is used to adopt the said second scrambler sequence generation device to generate is handled cross scheduling is carried out scrambling process.
Preferably, said system also has following characteristics:
Said synchronizer is the dual port random access memory.
Preferably, said system also has following characteristics: the synchronizing signal that said synchronization signal generation apparatus generated generates through external reference signal being gone to tremble the processing back.
Embodiment provided by the invention, compared with prior art, the progress of complete clog-free intersection on the one hand; The progress of many crossing on the same levels on the other hand, the progress of small particle size scheduling has on the one hand reached the intersection effect again; Save cross chips quantity, improved level of integrated system.
Description of drawings
Fig. 1 be provided by the invention in optical transfer network node realize the structural representation of the system embodiment of service dispatching;
Fig. 2 is another structural representation of system shown in Figure 1 embodiment;
Fig. 3 is another structural representation of system shown in Figure 2 embodiment;
Fig. 4 is the another structural representation of system shown in Figure 1 embodiment;
Fig. 5 be provided by the invention in optical transfer network node realize the schematic flow sheet of the method embodiment of service dispatching.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is made further detailed description below.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Fig. 1 be provided by the invention in optical transfer network node realize the structural representation of the system embodiment of service dispatching.System shown in Figure 1 embodiment comprise N receiving system, a skewing mechanism, a synchronous signal generation device and with N receiving system synchronizer and dispensing device one to one, wherein:
Receiving system is used to receive one tunnel business;
Synchronization signal generation apparatus; Be used for obtaining the business that each plane of business, said N road need be dispatched; And sending synchronizing signal respectively to the whole professional corresponding synchronizer of the required scheduling in same plane at synchronization, the output time of the business that wherein any two planes need be dispatched is different;
Synchronizer is used to preserve the business that said receiving system sends, and after the synchronizing signal that receives said synchronization signal generation apparatus transmission, exports said business;
Skewing mechanism is used for adopting (N*n) rank cross matrix that the business of synchronizer synchronization output is carried out cross scheduling;
Dispensing device is used to export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
Describe in the face of system embodiment provided by the invention down:
Fig. 2 is another structural representation of system shown in Figure 1 embodiment.System shown in Figure 2 embodiment also comprises:
With N receiving system calibration equipment one to one, be used for whole business of the required scheduling in same plane being carried out verification at synchronization.
Fig. 3 is another structural representation of system shown in Figure 2 embodiment.Also comprise in system described in the system shown in Figure 3 embodiment: one first scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said calibration equipment also comprises: descrambling module, the scrambler sequence that is used to adopt the first scrambler sequence generation device to generate is carried out scramble process to the business that receives.
The wherein said first scrambler sequence generation device all links to each other with each calibration equipment.
Fig. 4 is the another structural representation of system shown in Figure 1 embodiment.Also comprise in system described in the system shown in Figure 4 embodiment: one second scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said dispensing device also comprises: scrambling apparatus, the business after the scrambler sequence that is used to adopt the said second scrambler sequence generation device to generate is handled cross scheduling is carried out scrambling process.
Wherein this system embodiment shown in Figure 4 can also comprise at least one in the calibration equipment shown in Figure 2 and the first scrambler sequence generation device shown in Figure 3.
Need to prove; Because synchronizer is simultaneously in the time of the business that the same plane of output need be dispatched; So the business that same plane need be dispatched has reached synchronously in time, so in system of the present invention, whole business that same plane need be dispatched all can be used identical scrambler sequence; Need not to be the scrambler sequence generator one to one of each business configuration on the same plane, reduced the deployment cost of system's chips.
In said system embodiment, preferred, said synchronizer is dual port random access memory (dual port RAM).
Because receiving system can be delimited and produce parallel data with the road frame head again after the business of receiving; Dual port RAM adopts this with the reset write address of dual port RAM of road frame head; Simultaneously the frame head position is write dual port RAM; Use the reset address of reading of dual port RAM of this synchronizing signal, just professionally simultaneously read from dual port RAM, can accomplish the plane synchronously.
Certainly in practical application, also can use register to realize.
Need to prove that the synchronizing signal that said synchronization signal generation apparatus generated generates through external reference signal being gone to tremble the processing back.
Embodiment provided by the invention, compared with prior art, the progress of complete clog-free intersection on the one hand; The progress of many crossing on the same levels on the other hand, the progress of small particle size scheduling has on the one hand reached the intersection effect again; Save cross chips quantity, improved level of integrated system.
Fig. 5 be provided by the invention in optical transfer network node realize the schematic flow sheet of the method embodiment of service dispatching.In conjunction with the described system embodiment of Fig. 1 to 4, said method embodiment comprises:
Step 101, after receiving N road business, obtain the business that each plane need be dispatched in the business of said N road;
Step 102, whole business of the required scheduling in same plane are exported at synchronization, the output time of the business that wherein any two planes need be dispatched is different;
Step 103, employing (N*n) rank cross matrix carry out cross scheduling to the business that each plane need be dispatched respectively;
Step 104, export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
Optional, the business that said employing (N*n) rank cross matrix need be dispatched each plane respectively carries out also comprising before the cross scheduling:
At synchronization whole business of the required scheduling in same plane are carried out verification.
Optional, saidly at synchronization whole business of the required scheduling in same plane are carried out checking procedure and comprise:
The first identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the first identical scrambler sequence that whole business of the required scheduling in same plane are carried out scramble process at synchronization.
Optional, the business procedure after this cross scheduling of said output is handled comprises:
The second identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the second identical scrambler sequence that whole business of the required scheduling in same plane are carried out scrambling process at synchronization.
Embodiment provided by the invention, compared with prior art, the progress of complete clog-free intersection on the one hand; The progress of many crossing on the same levels on the other hand, the progress of small particle size scheduling has on the one hand reached the intersection effect again; Save cross chips quantity, improved level of integrated system.
The all or part of step that the one of ordinary skill in the art will appreciate that the foregoing description program circuit that can use a computer is realized; Said computer program can be stored in the computer-readable recording medium; Said computer program (like system, unit, device etc.) on the relevant hardware platform is carried out; When carrying out, comprise one of step or its combination of method embodiment.
Alternatively, all or part of step of the foregoing description also can use integrated circuit to realize, these steps can be made into integrated circuit modules one by one respectively, perhaps a plurality of modules in them or step is made into the single integrated circuit module and realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in the foregoing description can adopt the general calculation device to realize, they can concentrate on the single calculation element, also can be distributed on the network that a plurality of calculation element forms.
Each device/functional module/functional unit in the foregoing description is realized with the form of software function module and during as independently production marketing or use, can be stored in the computer read/write memory medium.The above-mentioned computer read/write memory medium of mentioning can be a read-only memory, disk or CD etc.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.
Claims (10)
1. the method for a node realization service dispatching in optical transfer network is characterized in that, comprising:
After receiving N road business, obtain the business that each plane need be dispatched in the business of said N road;
Whole business of the required scheduling in same plane are exported at synchronization, and the output time of the business that wherein any two planes need be dispatched is different;
Adopt (N*n) rank cross matrix respectively the business that each plane need be dispatched to be carried out cross scheduling;
Export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
2. method according to claim 1 is characterized in that, the business that said employing (N*n) rank cross matrix need be dispatched each plane respectively carries out also comprising before the cross scheduling:
At synchronization whole business of the required scheduling in same plane are carried out verification.
3. method according to claim 2 is characterized in that, saidly at synchronization whole business of the required scheduling in same plane is carried out checking procedure and comprises:
The first identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the first identical scrambler sequence that whole business of the required scheduling in same plane are carried out scramble process at synchronization.
4. according to the arbitrary described method of claim 1 to 3, it is characterized in that the business procedure after this cross scheduling of said output is handled comprises:
The second identical scrambler sequence of whole professional generation for the required scheduling in same plane;
Adopt the second identical scrambler sequence that whole business of the required scheduling in same plane are carried out scrambling process at synchronization.
One kind in optical transfer network node realize it is characterized in that the system of service dispatching, comprise N receiving system, a skewing mechanism, a synchronous signal generation device and with N receiving system synchronizer and dispensing device one to one, wherein:
Receiving system is used to receive one tunnel business;
Synchronization signal generation apparatus; Be used for obtaining the business that each plane of business, said N road need be dispatched; And sending synchronizing signal respectively to the whole professional corresponding synchronizer of the required scheduling in same plane at synchronization, the output time of the business that wherein any two planes need be dispatched is different;
Synchronizer is used to preserve the business that said receiving system sends, and after the synchronizing signal that receives said synchronization signal generation apparatus transmission, exports said business;
Skewing mechanism is used for adopting (N*n) rank cross matrix that the business of synchronizer synchronization output is carried out cross scheduling;
Dispensing device is used to export the business after this cross scheduling is handled;
Wherein N and n are the integer more than or equal to 2, and n is the bit wide that serial data is changeed parallel data.
6. system according to claim 5 is characterized in that, said system also comprises:
With N receiving system calibration equipment one to one, be used for whole business of the required scheduling in same plane being carried out verification at synchronization.
7. system according to claim 6 is characterized in that:
Said system also comprises:
One first scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said calibration equipment also comprises:
Descrambling module, the scrambler sequence that is used to adopt the first scrambler sequence generation device to generate is carried out scramble process to the business that receives.
8. according to the arbitrary described system of claim 5 to 7, it is characterized in that:
Said system also comprises:
One second scrambler sequence generation device, the whole business that are used to the required scheduling in same plane generate identical scrambler sequence;
Said dispensing device also comprises:
Scrambling apparatus, the business after the scrambler sequence that is used to adopt the said second scrambler sequence generation device to generate is handled cross scheduling is carried out scrambling process.
9. according to the arbitrary described system of claim 5 to 7, it is characterized in that said synchronizer is the dual port random access memory.
10. according to the arbitrary described system of claim 5 to 7, it is characterized in that the synchronizing signal that said synchronization signal generation apparatus generated generates through external reference signal being gone to tremble the processing back.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050082.7A CN102655470B (en) | 2011-03-02 | 2011-03-02 | The method and system of traffic scheduling is realized at optical transfer network interior joint |
| PCT/CN2011/081771 WO2012116552A1 (en) | 2011-03-02 | 2011-11-04 | Method and system for realizing service scheduling by node in optical transport network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050082.7A CN102655470B (en) | 2011-03-02 | 2011-03-02 | The method and system of traffic scheduling is realized at optical transfer network interior joint |
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| CN102655470A true CN102655470A (en) | 2012-09-05 |
| CN102655470B CN102655470B (en) | 2015-08-12 |
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| CN201110050082.7A Active CN102655470B (en) | 2011-03-02 | 2011-03-02 | The method and system of traffic scheduling is realized at optical transfer network interior joint |
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| WO (1) | WO2012116552A1 (en) |
Citations (4)
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| US20030123493A1 (en) * | 2001-12-19 | 2003-07-03 | Nec Corporation | Network, switching apparatus and OTN frame processing method for use therein; its circuit and integrated circuit |
| CN101001122A (en) * | 2006-06-22 | 2007-07-18 | 华为技术有限公司 | Method and device of unblock high-order cross expansion in SDH system |
| CN101389146A (en) * | 2007-09-13 | 2009-03-18 | 华为技术有限公司 | Method and apparatus for synchronous crossed scheduling of optical transmission network |
| CN101453290A (en) * | 2007-01-26 | 2009-06-10 | 华为技术有限公司 | Service scheduling system and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100584103C (en) * | 2005-03-10 | 2010-01-20 | 华为技术有限公司 | Signal dispatching method and system in optical transmission network |
| CN101110652B (en) * | 2006-07-18 | 2010-08-18 | 中兴通讯股份有限公司 | Apparatus and method for supporting automatic optical fiber connecting configuration of optical transmission equipment |
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2011
- 2011-03-02 CN CN201110050082.7A patent/CN102655470B/en active Active
- 2011-11-04 WO PCT/CN2011/081771 patent/WO2012116552A1/en active Application Filing
Patent Citations (4)
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| US20030123493A1 (en) * | 2001-12-19 | 2003-07-03 | Nec Corporation | Network, switching apparatus and OTN frame processing method for use therein; its circuit and integrated circuit |
| CN101001122A (en) * | 2006-06-22 | 2007-07-18 | 华为技术有限公司 | Method and device of unblock high-order cross expansion in SDH system |
| CN101453290A (en) * | 2007-01-26 | 2009-06-10 | 华为技术有限公司 | Service scheduling system and method |
| CN101389146A (en) * | 2007-09-13 | 2009-03-18 | 华为技术有限公司 | Method and apparatus for synchronous crossed scheduling of optical transmission network |
Non-Patent Citations (1)
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| 陈晶晶等: "《利用Bit-Slice技术实现ASON大容量交叉》", 《光通信技术》 * |
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| WO2012116552A1 (en) | 2012-09-07 |
| CN102655470B (en) | 2015-08-12 |
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