CN108736975A - A kind of optical transmission system - Google Patents
A kind of optical transmission system Download PDFInfo
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- CN108736975A CN108736975A CN201710248544.3A CN201710248544A CN108736975A CN 108736975 A CN108736975 A CN 108736975A CN 201710248544 A CN201710248544 A CN 201710248544A CN 108736975 A CN108736975 A CN 108736975A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1652—Optical Transport Network [OTN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0071—Provisions for the electrical-optical layer interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
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- Computer Networks & Wireless Communication (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A kind of optical transmission system, including：Wave division multiplexing WDM processing unit, optical transfer network OTN circuit side units, OTN client's side unit and synchronized data generation function client's side unit, and concentrate cross unit；The concentration cross unit, including：Virtual container VC cross units, OTN interleaving function units；The OTN interleaving functions unit is：Optical Channel Data Unit-k ODUk time division and crossings unit or cell switching unit；The ODUk time division and crossings unit completes the time division and crossing function based on ODUk frame format data；The cell switching unit completes the OTN interleaving functions based on cell exchange technology；When OTN interleaving function units are ODUk time division and crossing units, the OTN circuits side unit, OTN client's side unit and SDH client's side unit are attached with the ODUk time division and crossings unit using the interface of ODUk formats respectively.
Description
Technical field
The present invention relates to optical transport field of communication technology more particularly to a kind of optical transmission systems.
Background technology
In original optical transport network system, OTN (optical transfer network, Optical Transport Network) system
It is two independent transmission networks with SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) system.OTN
Optical transport network is responsible for OTU (Optical Channel Transport Unit, optical channel transmission unit) k (k=1,2,3,4)
Access, convergence, transmission and cross scheduling work, SDH optical transport networks be responsible for STM (synchronous driving multiplexing)-N (N=1,4,16,
64) access, convergence, transmission and cross scheduling work.The cross scheduling module of the two networks is mutual independence, mutually not phase
It closes, is realized in OTN equipment and SDH equipment respectively, such as 101 (the SDH cross units) and 201 (OTN cross units) in Fig. 1
It is shown.
With the continuous development of the OTN optical transport communication technologys, optical-fiber network gradually sinks to having become a kind of new technological trend.
On the basis of OTN optical-fiber networks original interleaving techniques, increase the VC (Virtual belonged to originally in SDH optical transmission
Container, virtual container) interleaving function, it has also become increasingly urgent market needs.
VC interleaving functions are realized on OTN optical transmission systems, it can on one system or core network exchanges section
The interleaving function of OTN and SDH are realized on point simultaneously, and then can uniformly safeguard OTN on a unified network management platform
With the interleaving function of SDH, to dramatically save network hardware purchase cost and network operation cost.
A kind of system block diagram of existing realization VC interleaving functions on OTN optical transmission systems is as shown in Figure 2.In this OTN
In system, 301 be the concentration cross unit inside OTN equipment, it can be completed at the same time the interleaving function of OTN and SDH.Wherein, 101
It is the OTN cross units based on space division cross technology for the SDH cross units based on VC interleaving techniques, 201.
The method that VC interleaving functions are realized on OTN optical transmission systems of Fig. 2 descriptions, there is obvious defect：SDH visitors
It is all made of STM-M (M between family side unit 102, SDH circuits side unit 103, VC cross units 101 and space division cross unit 201
=16) format is attached, and between OTN client's side unit 402, OTN circuits side unit 403 and space division cross unit 201
But the format of ODU (Optical Channel Data Unit, Optical Channel Data Unit-k) k (k=0,1,2,3,4) is used to carry out
Connection.Since STM-M (M=16) and ODUk (k=0,1,2,3,4) have apparent difference on frame structure and transmission rate, because
This OTN cross unit 201 is had to be realized using the technology of space division cross, causes OTN networks cross-capacity and scheduling is flexible
The reduction of degree；Simultaneously because between space division cross unit 201 channel frame format difference, SDH client's side unit 102, SDH lines
Roadside unit 103 is necessarily different from the different types of unit or list of OTN client's side unit 402 and OTN circuits side unit 403
Plate.To bring the increase of hardware cost and the promotion of maintenance cost；Finally, due to which the carrying of SDH circuits side unit 103 is
SDH business, it is therefore necessary to which WDM (Wavelength could be entered by converging unit 104 by STM-M (M=16) to OTN convergences/solution
Division Multiplex, wavelength-division multiplex) to complete the wavelength-division multiplex of OTUk (k=1,2,3,4)/demultiplex diligent for convergence unit
Energy.The hardware cost and maintenance cost of system are increased again in this way, while also increasing network delay.
Invention content
In view of this, the present invention provides following scheme.
A kind of optical transmission system, including：
Wave division multiplexing WDM processing unit, optical transfer network OTN circuit side units, OTN client's side unit and Synchronous Digital Hierarchy
SDH client's side unit, and concentrate cross unit；The concentration cross unit, including：Virtual container VC cross units, OTN intersect
Functional unit；
The OTN interleaving functions unit is：Optical Channel Data Unit-k ODUk time division and crossings unit or cell switching unit；
The ODUk time division and crossings unit completes the time division and crossing function based on ODUk frame format data；The cell switching unit is completed
OTN interleaving functions based on cell exchange technology；
When OTN interleaving function units be ODUk time division and crossing units, the OTN circuits side unit, OTN client's side unit and
SDH client's side unit is attached with the ODUk time division and crossings unit using the interface of ODUk formats respectively；
When OTN interleaving function units are cell switching unit, the OTN circuits side unit, OTN client's side unit and SDH
Client's side unit is attached with the cell switching unit using cell interface respectively.
Said program provides a kind of new system architecture that VC interleaving functions are realized on OTN optical transmission systems, passes through
The collaborative work of modules included by system has reached reduction network layer, reduces the effect of network delay, saves and is
System hardware purchase cost, improves the efficiency of the network operation and maintenance.In embodiments of the present invention, client's side unit, line side
The interface of ODUk formats or the mode of CELL cell interfaces are all made of between unit, VC cross units and OTN interleaving function units
It is interconnected, and then can ensure that intersect veneer completes the time division and crossing based on ODUk using time-multiplexed mode.To protect
Having demonstrate,proved OTN interleaving function units has larger cross-capacity and smaller cross granularity.SDH client's side unit of the present invention
A veneer, as unified customer side veneer, while line side veneer, which can be synthesized, with OTN client's side unit also there was only one
Kind, to significantly reduce hardware purchase cost and network operation cost.The circuit side unit of the embodiment of the present invention only has OTN
Circuit side unit is a kind of, and the interface that it arrives WDM processing units is OTUk interfaces.It is compared with the relevant technologies, eliminates STM-M and arrive
This partial function unit of OTN convergence reconciliation convergence units, thus can simplify network layer, reduce network delay, be effectively reduced
Hardware purchase cost and network operation cost.Therefore, the embodiment of the present invention enables to network structure more flat, transmission and
Crossing efficiency is more efficient, to be effectively reduced system hardware purchase cost and network operation cost.
Description of the drawings
Fig. 1 is the networking diagram of original OTN networks and SDH network.
Fig. 2 is the system block diagram of original OTN real-time performances VC functions.
Fig. 3 is the optical transmission system structural schematic diagram of first embodiment of the invention.
Fig. 4 is the optical transmission system structural schematic diagram of second embodiment of the invention.
Fig. 5 is the optical transmission system structural schematic diagram of third embodiment of the invention.
Fig. 6 is the system block diagram of VC cross units series connection networking of the present invention.
Fig. 7 is the system block diagram of VC cross units parallel connection networking of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature mutually can arbitrarily combine.
Embodiment one：
It is the optical transmission system structural schematic diagram of first embodiment of the invention with reference to shown in Fig. 3.Light described in the present embodiment
Transmission system can realize VC interleaving functions on OTN optical transmission systems.Optical transmission system structure described in the present embodiment is specific
As shown in figure 3, including WDM processing units 501, OTN circuits side unit 103, OTN client's side unit 102 and SDH client's side unit
101；
The optical transmission system of the present embodiment further includes concentrating cross unit 401, and in the present embodiment, the concentration is intersected single
First 401 include：ODUk (k=0,1,2,3,4) time division and crossing unit 301, VC cross units 201, STM-M (M=16) frame format
Data are mapped to ODUk (k=0,1,2,3,4) frame format data and de-mapping unit 202.
Wherein, the WDM processing units 501 complete the function of multiple OTUk (k=1,2,3,4) multiplex and partial wave, physics
Form is one or more veneers；OTN circuits side unit 103, completion ODUk (k=0,1,2,3,4) to OTUk (k=1,2,3,
4) mapping function is conciliate in mapping, and physical aspect is one or more veneers；OTN client's side unit 102 completes different rates etc.
Mapping function is conciliate in the mapping of the OTUk (k=1,2,3,4) Dao ODUk (k=0,1,2,3,4) of grade, and physical aspect is one or more
A veneer.
The concentration cross unit 401 is completed OTN and is intersected and SDH interleaving functions.Wherein, ODUk (k=0,1,2,3,4)
Time division and crossing unit 301 is located at and concentrates inside cross unit 401, completes the time division and crossing based on ODUk (k=0,1,2,3,4)
Function, physical aspect are one or more veneers；VC cross units 201 complete VC-4 (higher order virtual container), VC-3 and VC-12
Cross scheduling between the different rates such as (Lower Order Virtual Container) grade VC particles, physical aspect can be individually for one or more single
Plate can also form one or more veneers with ODUk (k=0,1,2,3,4) time division and crossing unit 301；STM-M (M=16) frame
Formatted data is located to the mapping of ODUk (k=0,1,2,3,4) frame format data and de-mapping unit 202 and concentrates cross unit 401
The interface function of VC cross units 201 and ODUk (k=0,1,2,3,4) time division and crossing unit 301, including STM-M are completed in inside
(M=16) frame format data conciliate mapping function and VC pointers to the mapping between ODUk (k=0,1,2,3,4) frame format data
Adjust function.General and VC cross units 201 form one or more veneers.
SDH client's side unit 101, completion STM-N (N=1,4,16,64) frame format data to ODUk (k=0,1,
2,3,4) frame format data mapping reconciliation mapping function, physical aspect are one or more veneers.
VC cross units 201 are further decomposed, the VC cross units 201 can be used such as the two kinds of networking sides Fig. 6 and Fig. 7
Formula.One of which networking mode is series connection networking mode, as shown in fig. 6, the networking includes two VC cross units, i.e.,：The
One VC cross units 301 and the 2nd VC cross units 302, they are protected each other, are backuped each other.They are to the STM-M (M in Fig. 3
=16) interface of frame format data to the mapping of ODUk (k=0,1,2,3,4) frame format data and de-mapping unit 202 is
STM-M (M=16) interface.Include a 3rd VC cross unit (VC-4 cross units) 201 in each VC cross unit, with
And the 4th VC cross unit (VC-3 and VC-12 cross units) 101, the 3rd VC cross units (VC-4 cross units) 201,
And the 4th be series system between VC cross units (VC-3 and VC-12 cross units) 101, be respectively completed VC-4 and VC-3 and
The cross scheduling function of VC-12.
The networking mode in parallel of another networking mode such as Fig. 7 of VC cross units 201.The networking is identical with Fig. 6, also has
Two VC cross units, one is the first VC cross units 301, and one is the 2nd VC cross units 302, they are protected each other,
It backups each other.They are reflected to STM-M (M=16) the frame format data in Fig. 3 to ODUk (k=0,1,2,3,4) frame format data
It is STM-M (M=16) interface to penetrate with the interface of de-mapping unit 202.Include the 3rd VC in each VC cross unit
Cross unit (VC-4 cross units) 201 and the 4th VC cross units (VC-3 and VC-12 cross units) 101, the third
It is between VC cross units (VC-4 cross units) 201 and the 4th VC cross units (VC-3 and VC-12 cross units) 101
Parallel way is respectively completed the cross scheduling function of VC-4 and VC-3 and VC-12.
Both networking modes of Fig. 6 and Fig. 7 can be completed to realize VC-4, VC-3 and VC-12 of VC cross units 201
Intersection and defencive function.Fig. 6 connect networking the advantages of be VC4 cross units 201 external STM-M (M=16) interface quantity compared with
It is few, the disadvantage is that VC-3/VC-12 cross units 101 will occupy the VC-4 cross-capacities of a part of VC-4 cross units 201, cause
The VC-4 cross-capacities of VC-4 cross units 201 are smaller.The advantages of Fig. 7 parallel connection networkings is the friendship of VC-4 and VC-3 and VC-12
It is mutual indepedent to pitch capacity, the disadvantage is that the quantity of VC4 cross units 201 external STM-M (M=16) interface is more.
In the present embodiment, due to ODUk (k=0,1,2,3,4) time division and crossing unit 301 be based on ODUk (k=0,1,
2,3,4) the extensive exchanging array of time gas exchange technology, therefore ODUk (k=0,1,2,3,4) time division and crossing units 301 and OTN
It is all made of ODUk between client's side unit 102, SDH client's side unit 101, OTN circuits side unit 103 and VC cross units 201
(k=0,1,2,3,4) interface connects.Wherein, VC cross units 201 and ODUk (k=0,1,2,3,4) time division and crossing unit 301
It is real to the mapping of ODUk (k=0,1,2,3,4) frame format data and de-mapping unit 202 using STM-M (M=16) frame format data
Interface conversion function of existing STM-M (M=16) the frame format data to ODUk (k=0,1,2,3,4) frame format data.In this way,
ODUk (k=0,1,2,3,4) time division and crossings unit 301 to each client's side unit, each circuit side unit and VC cross units 201 it
Interface is unified, when this uses ODUk (k=0,1,2,3,4) for ODUk (k=0,1,2,3,4) time division and crossing unit 301
Gap switching technology provides sufficient and necessary condition, and collateral security ODUk (k=0,1,2,3,4) time division and crossing unit 301 has
Larger cross-capacity and smaller cross granularity.
SDH client's side unit 101 and OTN client's side unit 102 arrive ODUk (k=0,1,2,3,4) time division and crossing unit
301 interface is ODUk (k=0,1,2,3,4) interface, therefore in physical aspect, SDH client's side unit 101 and OTN visitors
Family side unit 102 can synthesize a veneer, as unified customer side veneer.The veneer can complete each speed grade
The access function of STM-N (N=1,4,16,64) frame format data, can also complete each speed grade OTUk (k=1,2,3,4)
The access function of frame format data.To significantly reduce hardware purchase cost and network operation cost.
In the system of the embodiment of the present invention, circuit side unit only has OTN circuits side unit 103, and this is a kind of, it is at WDM
The interface for managing unit 501 is OTUk (k=1,2,3,4) interface.It is compared with system shown in Figure 2, eliminates the STM-M (M in Fig. 2
=16) to this partial function unit of OTN convergence reconciliation convergence units 104, it thus can simplify network layer, reduce network delay,
Significantly reduce hardware purchase cost and network operation cost.
Embodiment two：
It is of the present invention to realize that VC second embodiment of interleaving function is as shown in Figure 4 on OTN optical transmission systems.It and
The difference of Fig. 3 embodiments is：OTN interleaving function units are cell (CELL) crosspoint 301.The cell switching unit 301
Using the OTN interleaving function units based on cell exchange technology.The unit and OTN client's side unit 102, SDH customer sides
The connection of cell interface is all made of between unit 101, OTN circuits side unit 103 and VC cross units 201.Therefore, in cell switching
Between unit 301 and other units, the cell that will increase an ODUk (k=0,1,2,3,4) frame format data to cell turns
Change unit 601.Continuous rate ODUk (k=0,1,2,3,4) frame format data are completed by the cell converting unit 601 to letter
Conversion function between member.In addition to this, other function modules are identical with the embodiment of Fig. 3 in the embodiment, here not
It repeats again.
Embodiment three：
On the basis of Fig. 4 embodiments, if in concentration cross unit cell switching unit and VC cross units synthesize
One unified cell switching platform, then the third of the present invention that VC interleaving functions are realized on OTN optical transmission systems is a
Embodiment is as shown in Figure 5.In this embodiment, unified cell crossover-platform can both complete based on ODUk (k=0,1,2,3,
4) cell switching can also complete the cell switching based on VC.Customer side access unit 101 is first by each rate of customer side etc.
STM-N (N=1,4,16,64) business mapping reconciliation of grade maps to the VC (VC-4 or VC-3 or VC-12) of different rates grade
Particle, then by the particle encapsulating reconciliation encapsulating of VC (VC-4 or VC-3 or VC-12) to CELL cell formats, then pass through unified letter
First switching plane is exchanged to circuit side unit.The structure of circuit side unit is identical with the embodiment of Fig. 4, no longer superfluous here
It states.The maximum of the present embodiment and Fig. 4 embodiments is not both：In customer side access unit 101, STM-N (N=1,4,16,64)
Frame format data can directly encapsulate reconciliation encapsulating to CELL cell formats, and STM-N (N=1,4,16,64) frame format number is omitted
The process of ODUk (k=0,1,2,3,4) frame format data is mapped to according to mapping reconciliation；Meanwhile the concentration in the present embodiment is intersected
Unit 401 is omitted VC cross units 201 in Fig. 4 embodiments, VC (VC-4 or VC-3 or VC-12) particles and ODUk (k=0,1,
2,3,4) intersection of particle, it is unified to be completed by the unified cell switching unit of Fig. 5.Therefore, the present embodiment can be further simple
Change network layer, network delay is reduced, to further reduced hardware purchase cost and network operation cost.
In embodiments of the present invention, the time division and crossing mode based on ODUk (k=0,1,2,3,4) or cell switching are used
The time division and crossing mode of (CELL Switch) mode and VC-4 (higher order virtual container), VC-3 and VC-12 (Lower Order Virtual Container),
VC interleaving functions are realized on OTN optical transmission systems.Compared with prior art, reach reduction network layer, reduce network
The effect of delay saves system hardware purchase cost, improves the efficiency of the network operation and maintenance, achieves apparent technology
Progress.
In embodiments of the present invention, the optical transmission system, including WDM processing units 501, OTN circuits side unit 103,
OTN client's side unit 102, SDH client's side unit 101 concentrate cross unit 401, and there are two types of real for the concentration cross unit 401
Apply mode：A kind of embodiment is that the concentration cross unit 401 includes：ODUk (k=0,1,2,3,4) time division and crossing unit
And VC cross units, and STM-M (M=16) frame format data to ODUk (k=0,1,2,3,4) frame format data map conciliate
Map unit 202.Another embodiment is that the concentration cross unit 401 includes：CELL cell switchings unit 301, VC are handed over
Pitch unit 201, STM-M (M=16) frame format data to ODUk frame formats data (k=0,1,2,3,4) mapping and demapping list
Cell converting unit 601 of 202 and ODUk of member (k=0,1,2,3,4) the frame format data to cell.
In the embodiment of the present invention, by the collaborative work of above-mentioned modules, reduction network layer is reached, has reduced network
The effect of delay saves system hardware purchase cost, improves the efficiency of the network operation and maintenance.The embodiment of the present invention provides
A kind of new method or system architecture that VC interleaving functions are realized on OTN optical transmission systems, enables to network structure more
Add it is flat, transmission and crossing efficiency it is more efficient, to be effectively reduced system hardware purchase cost and network operation cost.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.Pass through above embodiment party
The description of formula, it is required general that those skilled in the art can be understood that above-described embodiment method can add by software
The mode of hardware platform is realized, naturally it is also possible to which by hardware, but the former is more preferably embodiment in many cases.It is based on
Such understanding, substantially the part that contributes to existing technology can be with soft in other words for the technical solution of the embodiment of the present invention
The form of part product embodies, which is stored in a storage medium (such as ROM/RAM, magnetic disc, CD)
In, including some instructions use is so that a station terminal equipment (can be mobile phone, computer, server or the network equipment etc.)
Execute the method described in each embodiment of the present invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of optical transmission system, which is characterized in that including：
Wave division multiplexing WDM processing unit, optical transfer network OTN circuit side units, OTN client's side unit and synchronized data generation function
Client's side unit, and concentrate cross unit；The concentration cross unit, including：Virtual container VC cross units, OTN intersect work(
It can unit；
The OTN interleaving functions unit is：Optical Channel Data Unit-k ODUk time division and crossings unit or cell switching unit；It is described
ODUk time division and crossing units complete the time division and crossing function based on ODUk frame format data；The cell switching unit completion is based on
The OTN interleaving functions of cell exchange technology；
When OTN interleaving function units are ODUk time division and crossing units, the OTN circuits side unit, OTN client's side unit and SDH
Client's side unit is attached with the ODUk time division and crossings unit using the interface of ODUk formats respectively；
When OTN interleaving function units are cell switching unit, the OTN circuits side unit, OTN client's side unit and SDH client
Side unit is attached with the cell switching unit using cell interface respectively.
2. the system as claimed in claim 1, which is characterized in that
When the OTN interleaving functions unit is ODUk time division and crossing units, the concentration cross unit further includes：STM-M frame lattice
Formula data are mapped to ODUk frame format data and de-mapping unit, for completing VC cross units and ODUk time division and crossing units
Interface function, including STM-M frame formats data between ODUk frame format data mapping and demapping function and VC pointer tune
Whole function.
3. the system as claimed in claim 1, which is characterized in that
When the OTN interleaving functions unit is cell switching unit, the concentration cross unit further includes：ODUk frame format data
To cell converting unit, realize continuous rate ODUk frame formats data to conversion function between cell.
4. the system as claimed in claim 1, which is characterized in that the VC cross units are used for different rates grade VC particles
Between cross scheduling, be individually for one or more veneers or the VC cross units and ODUk time division and crossing units composition
One or more veneers.
5. the system as claimed in claim 1, which is characterized in that
The VC cross units include：First VC cross units and the 2nd VC cross units, the first VC cross units and
Two VC cross units backup each other.
6. the system as claimed in claim 1, which is characterized in that
The VC cross units include：3rd VC cross units and the 4th VC cross units, the 3rd VC cross units and institute
The 4th VC cross units are stated to connect using parallel way or adopt and be connected serially.
7. the system as claimed in claim 1, which is characterized in that
The cell switching unit and VC cross units synthesize a unified cell switching platform, for realizing based on ODUk frames
The cell switching of formatted data and cell switching based on VC.
8. the system as claimed in claim 1, which is characterized in that
The OTN circuits side unit completes ODUk frame formats data to the mapping of OTUk frame format data and conciliates mapping function, is
One or more veneers；OTN client's side unit completes the OTUk frame formats data of different rates grade to ODUk frame formats
Mapping function is conciliate in the mapping of data, for one or more veneers；SDH client's side unit completes STM-N frame format data
Reconciliation mapping function is mapped to ODUk frame format data, for one or more veneers.
9. the system as claimed in claim 1, which is characterized in that
SDH client's side unit and OTN client's side unit synthesize a veneer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019052539A1 (en) * | 2017-09-14 | 2019-03-21 | 中兴通讯股份有限公司 | Signal processing device and method |
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| WO2019052539A1 (en) * | 2017-09-14 | 2019-03-21 | 中兴通讯股份有限公司 | Signal processing device and method |
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