CN102655470B - The method and system of traffic scheduling is realized at optical transfer network interior joint - Google Patents
The method and system of traffic scheduling is realized at optical transfer network interior joint Download PDFInfo
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- CN102655470B CN102655470B CN201110050082.7A CN201110050082A CN102655470B CN 102655470 B CN102655470 B CN 102655470B CN 201110050082 A CN201110050082 A CN 201110050082A CN 102655470 B CN102655470 B CN 102655470B
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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 kind of method and system realizing traffic scheduling at optical transfer network interior joint, described method, comprising: after receiving N road business, and obtaining each plane in the business of described N road needs the business of scheduling; Whole business of dispatching required for same plane exported at synchronization, wherein any two planes need the output time of the business of scheduling different; (N*n) rank cross matrix is adopted to need the business of scheduling to carry out cross scheduling to each plane respectively; Export the business after this cross scheduling process; Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
Description
Technical field
The present invention relates to optical communication field, particularly relate to a kind of method and system realizing traffic scheduling at optical transfer network interior joint.
Background technology
The raising of optical transfer network (OTN) network due to line speed and the use of wavelength division multiplexing, make power system capacity unprecedentedly improve, and present wire rate can reach 40G, 100G.And thinner to the granularity relative requirement of traffic scheduling, require to reach the hundred M orders of magnitude, want high like this to cross chips capacity requirement, scheduling particle requirement is thinner.Make it possible to use single-chip to complete cross scheduling and more and more there is challenge.
The patent No. is the patent of CN200810189670.7, in order to complete cross scheduling, cuts into slices to business, uses multiple cross chips cascade, and each cross chips uses CLOS framework.Although this processing method can realize without hindrance intersection, the scheduling particle of system can be reduced, the development of OTN network can not be adapted to.
On the other hand, the centralized dispatching of OTN network requires also more and more higher, even needs to set up Trunked Radio System, requires that the business of Different Plane can at same node United Dispatching.This just requires that cross chips has the adaptive capacity of Different Plane simultaneously.
In chi structure, there are CLOS and bitslice two kinds of frameworks.
For three grades of CLOS cross matrixes of NXN, input N road, N road exports.First order crosspoint has n input, m output, and total N/n, the second level is N/n input and output, and total m, the third level has m input and n output, N/n altogether.
As m < n, it is strict clogging networks.The without hindrance characteristic of OTN system can not be met.
As 2n-1 > m >=n, for rearrangeable clog-free.But along with increasing of port, search time and efficiency all can not meet the demands.
As m >=2n-1, for strictly without hindrance, but under multicast case, there is certain blocking rate.So can not meet the demands.
And although bitslice framework is larger, due to its without hindrance characteristic and configurability easily, be adapted to the development of OTN network.
Summary of the invention
The method and system realizing traffic scheduling at optical transfer network interior joint provided by the invention, the technical problem that solve be how to realize Large Copacity OTN system strictly without hindrance minimum hundred M rank cross schedulings and multilevel cross scheduling can be realized at a node.
For solving the problems of the technologies described above, the invention provides following technical scheme:
Realize a method for traffic scheduling at optical transfer network interior joint, comprising:
After receiving N road business, obtaining each plane in the business of described N road needs the business of scheduling;
Whole business of dispatching required for same plane exported at synchronization, wherein any two planes need the output time of the business of scheduling different;
(N*n) rank cross matrix is adopted to need the business of scheduling to carry out cross scheduling to each plane respectively;
Export the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
Preferably, described method also has following features: described employing (N*n) rank cross matrix also comprises before carrying out cross scheduling to the business of each plane needs scheduling respectively:
At synchronization, whole business of dispatching required for same plane are verified.
Preferably, described method also has following features: describedly carry out checking procedure at synchronization to whole business of dispatching required for same plane and comprise:
The first scrambler sequence that the whole service generation dispatched required for same plane are identical;
The first identical scrambler sequence is adopted to carry out scramble process to whole business of dispatching required for same plane at synchronization.
Preferably, described method also has following features: the business procedure after this cross scheduling process of described output comprises:
The second scrambler sequence that the whole service generation dispatched required for same plane are identical;
The second identical scrambler sequence is adopted to carry out scrambling process to whole business of dispatching required for same plane at synchronization.
Realize a system for traffic scheduling at optical transfer network interior joint, comprise N number of receiving system, a skewing mechanism, a synchronization signal generation apparatus and with N number of receiving system synchronizer and dispensing device one to one, wherein:
Receiving system, for receiving a road business;
Synchronization signal generation apparatus, the business of scheduling is needed for obtaining each plane in the business of described N road, and send synchronizing signal at synchronization respectively to the synchronizer that whole business of dispatching required for same plane are corresponding, wherein any two planes need the output time of the business of scheduling different;
Synchronizer, for preserving the business that described receiving system sends, and after the synchronizing signal receiving the transmission of described synchronization signal generation apparatus, exports described business;
Skewing mechanism, carries out cross scheduling for adopting (N*n) rank cross matrix to the business that synchronizer synchronization exports;
Dispensing device, for exporting the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
Preferably, described system also has following features: described system also comprises:
With N number of receiving system calibration equipment one to one, for verifying whole business that same plane is dispatched at synchronization.
Preferably, described system also has following features: described system also comprises:
One first scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described calibration equipment also comprises:
Descrambling module, the scrambler sequence generated for adopting the first scrambler sequence generation device carries out scramble process to the business received.
Preferably, described system also has following features:
Described system also comprises:
One second scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described dispensing device also comprises:
Scrambling apparatus, carries out scrambling process for the scrambler sequence adopting described second scrambler sequence generation device to generate to the business after cross scheduling process.
Preferably, described system also has following features:
Described synchronizer is dual port random access memory.
Preferably, described system also has following features: the synchronizing signal that described synchronization signal generation apparatus generates generates after carrying out debounce processing to external reference signal.
Embodiment provided by the invention, compared with prior art, the progress of complete non-blocking cross on the one hand, the progress of many level-crossings on the other hand, then the progress of small particle size scheduling on the one hand, reach intersection effect, save cross chips quantity, improve level of integrated system.
Accompanying drawing explanation
Fig. 1 is the structural representation realizing the system embodiment of traffic scheduling at optical transfer network interior joint provided by the invention;
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 is the schematic flow sheet realizing the embodiment of the method for traffic scheduling at optical transfer network interior joint provided by the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
Fig. 1 is the structural representation realizing the system embodiment of traffic scheduling at optical transfer network interior joint provided by the invention.System shown in Figure 1 embodiment comprise N number of receiving system, a skewing mechanism, a synchronization signal generation apparatus and with N number of receiving system synchronizer and dispensing device one to one, wherein:
Receiving system, for receiving a road business;
Synchronization signal generation apparatus, the business of scheduling is needed for obtaining each plane in the business of described N road, and send synchronizing signal at synchronization respectively to the synchronizer that whole business of dispatching required for same plane are corresponding, wherein any two planes need the output time of the business of scheduling different;
Synchronizer, for preserving the business that described receiving system sends, and after the synchronizing signal receiving the transmission of described synchronization signal generation apparatus, exports described business;
Skewing mechanism, carries out cross scheduling for adopting (N*n) rank cross matrix to the business that synchronizer synchronization exports;
Dispensing device, for exporting the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
Below system embodiment provided by the invention is described:
Fig. 2 is another structural representation of system shown in Figure 1 embodiment.System shown in Figure 2 embodiment also comprises:
With N number of receiving system calibration equipment one to one, for verifying whole business that same plane is dispatched at synchronization.
Fig. 3 is another structural representation of system shown in Figure 2 embodiment.Described in system shown in Figure 3 embodiment, system also comprises: one first scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described calibration equipment also comprises: descrambling module, and the scrambler sequence generated for adopting the first scrambler sequence generation device carries out scramble process to the business received.
Wherein said first scrambler sequence generation device is all connected with each calibration equipment.
Fig. 4 is the another structural representation of system shown in Figure 1 embodiment.Described in system shown in Figure 4 embodiment, system also comprises: one second scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described dispensing device also comprises: scrambling apparatus, carries out scrambling process for the scrambler sequence adopting described second scrambler sequence generation device to generate to the business after cross scheduling process.
Wherein the system embodiment shown in this Fig. 4 can also comprise at least one in the first scrambler sequence generation device shown in the calibration equipment shown in Fig. 2 and Fig. 3.
It should be noted that, because synchronizer is the time of the business exporting the scheduling of same plane needs is while, so same plane needs the business of scheduling to reach synchronously in time, so in the system of the present invention, same plane needs whole business of scheduling all can use identical scrambler sequence, without the need to being business configuration each on same plane scrambler sequence generator one to one, decrease the deployment cost of system chips.
In said system embodiment, preferably, described synchronizer is dual port random access memory (dual port RAM).
Because parallel data can again be delimited and produce with road frame head by receiving system after receiving business, dual port RAM adopts this with the write address of road frame head reset dual port RAM, frame header position is write dual port RAM simultaneously, what use this synchronizing signal reset dual port RAM reads address, just business reads from dual port RAM simultaneously, can complete the synchronous of plane.
Certainly in actual applications, also can use register to realize.
It should be noted that, the synchronizing signal that described synchronization signal generation apparatus generates generates after carrying out debounce processing to external reference signal.
Embodiment provided by the invention, compared with prior art, the progress of complete non-blocking cross on the one hand, the progress of many level-crossings on the other hand, then the progress of small particle size scheduling on the one hand, reach intersection effect, save cross chips quantity, improve level of integrated system.
Fig. 5 is the schematic flow sheet realizing the embodiment of the method for traffic scheduling at optical transfer network interior joint provided by the invention.System embodiment described in composition graphs 1 to 4, described embodiment of the method comprises:
Step 101, after receiving N road business, obtaining each plane in the business of described N road needs the business of scheduling;
Step 102, whole business of dispatching required for same plane exported at synchronization, wherein any two planes need the output time of the business of scheduling different;
Step 103, employing (N*n) rank cross matrix need the business of scheduling to carry out cross scheduling to each plane respectively;
Step 104, export the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
Optionally, described employing (N*n) rank cross matrix also comprises before carrying out cross scheduling to the business of each plane needs scheduling respectively:
At synchronization, whole business of dispatching required for same plane are verified.
Optionally, describedly at synchronization, checking procedure is carried out to whole business of dispatching required for same plane and comprises:
The first scrambler sequence that the whole service generation dispatched required for same plane are identical;
The first identical scrambler sequence is adopted to carry out scramble process to whole business of dispatching required for same plane at synchronization.
Optionally, the business procedure after this cross scheduling process of described output comprises:
The second scrambler sequence that the whole service generation dispatched required for same plane are identical;
The second identical scrambler sequence is adopted to carry out scrambling process to whole business of dispatching required for same plane at synchronization.
Embodiment provided by the invention, compared with prior art, the progress of complete non-blocking cross on the one hand, the progress of many level-crossings on the other hand, then the progress of small particle size scheduling on the one hand, reach intersection effect, save cross chips quantity, improve level of integrated system.
One of ordinary skill in the art will appreciate that all or part of step of above-described embodiment can use computer program flow process to realize, described computer program can be stored in a computer-readable recording medium, described computer program (as system, unit, device etc.) on corresponding hardware platform performs, when performing, step comprising embodiment of the method one or a combination set of.
Alternatively, all or part of step of above-described embodiment also can use integrated circuit to realize, and these steps can be made into integrated circuit modules one by one respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Each device/functional module/functional unit in above-described embodiment can adopt general calculation element to realize, and they can concentrate on single calculation element, also can be distributed on network that multiple calculation element forms.
Each device/functional module/functional unit in above-described embodiment using the form of software function module realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.The above-mentioned computer read/write memory medium mentioned can be read-only memory, disk or CD etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, 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 protection range described in claim.
Claims (10)
1. realize a method for traffic scheduling at optical transfer network interior joint, it is characterized in that, comprising:
After receiving N road business, obtaining each plane in the business of described N road needs the business of scheduling;
Whole business of dispatching required for same plane exported at synchronization, wherein any two planes need the output time of the business of scheduling different;
(N*n) rank cross matrix is adopted to need the business of scheduling to carry out cross scheduling to each plane respectively;
Export the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
2. method according to claim 1, is characterized in that, described employing (N*n) rank cross matrix also comprises before carrying out cross scheduling to the business of each plane needs scheduling respectively:
At synchronization, whole business of dispatching required for same plane are verified.
3. method according to claim 2, is characterized in that, describedly carries out checking procedure at synchronization to whole business of dispatching required for same plane and comprises:
The first scrambler sequence that the whole service generation dispatched required for same plane are identical;
The first identical scrambler sequence is adopted to carry out scramble process to whole business of dispatching required for same plane at synchronization.
4., according to the arbitrary described method of claims 1 to 3, it is characterized in that, the business procedure after this cross scheduling process of described output comprises:
The second scrambler sequence that the whole service generation dispatched required for same plane are identical;
The second identical scrambler sequence is adopted to carry out scrambling process to whole business of dispatching required for same plane at synchronization.
5. realize a system for traffic scheduling at optical transfer network interior joint, it is characterized in that, comprise N number of receiving system, a skewing mechanism, a synchronization signal generation apparatus and with N number of receiving system synchronizer and dispensing device one to one, wherein:
Receiving system, for receiving a road business;
Synchronization signal generation apparatus, the business of scheduling is needed for obtaining each plane in the business of N road, and send synchronizing signal at synchronization respectively to the synchronizer that whole business of dispatching required for same plane are corresponding, wherein any two planes need the output time of the business of scheduling different;
Synchronizer, for preserving the business that described receiving system sends, and after the synchronizing signal receiving the transmission of described synchronization signal generation apparatus, exports described business;
Skewing mechanism, carries out cross scheduling for adopting (N*n) rank cross matrix to the business that synchronizer synchronization exports;
Dispensing device, for exporting the business after this cross scheduling process;
Wherein N and n is the integer being more than or equal to 2, and n is the bit wide that serial data turns parallel data.
6. system according to claim 5, is characterized in that, described system also comprises:
With N number of receiving system calibration equipment one to one, for verifying whole business that same plane is dispatched at synchronization.
7. system according to claim 6, is characterized in that:
Described system also comprises:
One first scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described calibration equipment also comprises:
Descrambling module, the scrambler sequence generated for adopting the first scrambler sequence generation device carries out scramble process to the business received.
8., according to the arbitrary described system of claim 5 to 7, it is characterized in that:
Described system also comprises:
One second scrambler sequence generation device, the scrambler sequence that the whole service generation for dispatching for same plane are identical;
Described dispensing device also comprises:
Scrambling apparatus, carries out scrambling process for the scrambler sequence adopting described second scrambler sequence generation device to generate to the business after cross scheduling process.
9., according to the arbitrary described system of claim 5 to 7, it is characterized in that, described synchronizer is 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 described synchronization signal generation apparatus generates generates after carrying out debounce processing to external reference signal.
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| 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 |
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| 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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| CN102655470B true CN102655470B (en) | 2015-08-12 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003188919A (en) * | 2001-12-19 | 2003-07-04 | Nec Corp | Network, switch device, method for processing otn frame to be used therefor, its circuit and integrated circuit |
| 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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- 2011-03-02 CN CN201110050082.7A patent/CN102655470B/en active Active
- 2011-11-04 WO PCT/CN2011/081771 patent/WO2012116552A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 《利用Bit-Slice技术实现ASON大容量交叉》;陈晶晶等;《光通信技术》;20061130(第11期);第2页，图2 * |
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| WO2012116552A1 (en) | 2012-09-07 |
| CN102655470A (en) | 2012-09-05 |
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Effective date of registration: 20151116 Address after: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee after: ZTE Corp. Patentee after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corp. |
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Effective date of registration: 20221202 Address after: 518055 Zhongxing Industrial Park, Liuxian Avenue, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. Patentee before: SANECHIPS TECHNOLOGY Co.,Ltd. |