CN1567806A - Method and apparatus for implementing optical wavelength conversion function in communication system - Google Patents
Method and apparatus for implementing optical wavelength conversion function in communication system Download PDFInfo
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Abstract
The invention provides a method of realizing optical wavelength conversion in communication system, including: analyzing and dividing the functions that various optical wavelength converting units need to implement; according to the division result, building corresponding optical wavelength converting modules; each converting module and single-plate device cooperate to realize optical wavelength conversion. It also provides a corresponding device to the method, including: parameters setting/recovery component, command processing component, alarm component and single plate device. It makes the components based on optical wavelength conversion mutually independent, thus making the converting units more stable and reliable; improves the understandability, testability, maintainability and transplantability of the components and converting units, and realizes the purpose of code multiplexing and resources sharing of the converting units.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to realize in a kind of communication system the method and apparatus of light wavelength conversion function.
Background technology
In order to satisfy quick demand and resource-sharing, a little less than people wish the dependence of existing resources to environment, highly versatile to information resources.Promptly change to some extent can not influence existing resource and need that maybe this resource is applied to other environment the time when the environment at existing resource place, this resource still can be suitable for.
If each resource can only be applied to particular environment, lack the portable characteristic, when so former environment slight change can have influence on existing resource and needs that maybe this resource is applied to other environment, existing resources promptly needs to revise or abandon, this has run counter to the requirement of people to resource-sharing, caused the resource multiplex difficulty, the wasting of resources.
There is the resource-sharing problem in the optical wavelength conversion element too.
Network communication system now, along with the extensive use of optical fiber technology, WDM (wavelength division multiplexing) technology is in develop rapidly, and the user is also increasing to the requirement of light signal access service types.As: STM-64, STM-16, STM-4, OC-192, OC-64, OC-16, STM-64C, STM-16C, STM-4C, OC-192C, OC-64C, OC-16C, GE.Increasing of light signal access service types makes the type of optical wavelength conversion element also increasing.
The major function of optical wavelength conversion element is light signal to be carried out the conversion of optical wavelength.Specifically, its major function is to receive the light signal that user side sends, send to DWDM (dense wave division multipurpose) system after the light signal of various types of non-standard wavelength of the user side that receives being converted to standard wave length's light signal, to satisfy the transmission requirement of dwdm system; And receiving the light signal that dwdm system sends, the light signal that the standard wave length's that the dwdm system that receives is sent light signal converts the wavelength that meets the user side needs to sends to user side.
The light signal that optical wavelength conversion element sends the user side that receives is converted to standard wave length's light signal, and the standard wave length of its light signal is the standard wave length who meets the ITU-T suggestion.
Generally speaking, optical wavelength conversion element is a transceiver, promptly comprises transmitter side OTU (optical wavelength conversion element) and receiver side OTU (optical wavelength conversion element) two parts.
At the transmitter side of optical wavelength conversion element, the light signal that the user side that receives is sent converts the standard wave length's who meets the ITU-T suggestion light signal to, to satisfy the requirement of dwdm system transmission.For converting speed behind the standard wave length to is that the light signal of 10Gbps can also adopt FEC (forward error correction) coding techniques to the light signal after the conversion simultaneously, send to dwdm system.
At the receiver side of optical wavelength conversion element, the standard wave length's who meets the ITU-T suggestion that the dwdm system that receives is sent light signal converts the light signal of the wavelength of user side needs to, to satisfy the requirement of user side.For the dwdm system that receives, if when light signal sends, adopted the FEC coding techniques, also to adopt the fec decoder technology to light signal, the speed of light signal is reduced to the light signal of 10Gbps, convert thereof into the light signal of the wavelength of user side needs simultaneously, send to user side.
Light signal is adopted the FEC coding techniques, can improve the equivalent sensitivity to the light signal reception of SDH (SDH (Synchronous Digital Hierarchy)) transmission system.After light signal adopted the FEC coding techniques, at receiving terminal, even the power of receiving optical signals is little generally speaking in the power ratio of the light signal that receives, receiver side also can correctly identify light signal, and this just is equivalent to improve the receiving sensitivity of receiver side.Equivalence sensitivity promptly guarantees equal effectively identification to light signal.Adopted behind the FEC coding techniques owing to improved the equivalent sensitivity that light signal receives, thereby prolonged the distance of optical signal transmission.
The veneer that a large amount of dissimilar light wavelength conversion functions is arranged in the product of wavelength division multiplexing.Also develop the veneer of the wavelength conversion type that makes new advances later on possibly.
Optical wavelength conversion element is formed device with veneer and is cooperated the common light wavelength conversion function that realizes, for the resource that can make existing realization light wavelength conversion function is applicable to dissimilar veneers, need decompose refinement to optical wavelength conversion element.
Method to the decomposition refinement of optical wavelength conversion element in the prior art is the function that need realize at the optical wavelength conversion element of single type, analyzes and divides in conjunction with the concrete function of forming device in concrete veneer function and the veneer; Be about to the function that the optical wavelength conversion element of concrete a certain type need be realized, carry out the analysis of function according to its applied concrete veneer environment, and optical wavelength conversion element is divided into several modules according to analysis result, realize the light wavelength conversion function jointly by the optical wavelength conversion element of a certain type of module and its application and concrete veneer.
The final optical wavelength conversion element of forming can't be applied in the other types veneer again according to the module of this division methods formation.And the granularity to the decomposition refinement of optical wavelength conversion element is bigger in the prior art, and the intermodule contact closely; When need studying separately, test or when safeguarding,, need form devices and other modules have a lot of understandings to other of other functions of optical wavelength conversion element and veneer because it can not independently exist to some specific functions of optical wavelength conversion element.
Such division methods makes module and optical wavelength conversion element be not easy to understand, and is not easy to test, is not easy to safeguard.
When an inside modules makes a mistake, the spread scope of mistake is extensive, has influenced the reliability and stability of optical wavelength conversion element.
Simultaneously since a plurality of composition devices contacts of the veneer of module and same type closely, when some composition devices of veneer change, only different on some or several composition devices as two types veneers, optical wavelength conversion element promptly needs to rebulid.
Because prior art to the implementation method of the refinement decomposition of optical wavelength conversion element, has influenced stability, reliability, intelligibility, testability, the maintainability and portable of module and optical wavelength conversion element.And since less to the shared property consideration of dissimilar optical wavelength conversion elements when optical wavelength conversion element being carried out the refinement decomposition, code reuse caused, the wasting of resources, this does not meet the requirement of people to resource-sharing.
Summary of the invention
The objective of the invention is to, the method and apparatus of realizing the light wavelength conversion function in a kind of communication system is provided, make based on the coupling of the optical wavelength conversion element inter-module of realizing the light wavelength conversion function little, improved the intelligibility of assembly and optical wavelength conversion element, testability, reliability, stability, maintainability and portable have realized the purpose of optical wavelength conversion element code reuse, resource-sharing.
For achieving the above object, realize the method for light wavelength conversion function in a kind of communication system provided by the invention, comprising:
A, the function that all types of optical wavelength conversion elements need be realized are analyzed and are divided according to the relevance between each function;
B, set up corresponding optical wavelength converting modules respectively according to dividing the result;
C, each optical wavelength converting modules and veneer are formed device and are cooperated realization light wavelength conversion function.
Described step b comprises:
B1, set up parameter setting/recovery component;
B2, set up the command process assembly;
B3, set up alarm component.
Described step b1 comprises:
B11, set up default parameter and remain to EEPROM (electricallyerasable ROM (EEROM)) assembly;
B12, set up the parameter change assembly;
B13, set up configuration parameter and remain to memory subassembly;
B14, set up configuration parameter and remain to FLASH (read-write memory) assembly.
Described step b2 comprises:
B21, set up the active/standby single board changeover assembly;
B22, set up the single board main/standby signal and switch assembly;
B23, set up laser automatic switch control assembly;
B24, set up passage/light mouth user mode and report assembly.
Described step b2 also comprises:
B25, set up register read-write assembly;
B26, set up the register emulation component;
B27, set up register and patrol and examine assembly;
B28, set up register low pressure verification assembly;
B29, set up forward error correction encoding and decoding command process assembly.
Described step b3 comprises:
B31, set up optical module performance monitoring alarm component;
B32, set up OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components;
B33, set up the temperature warning assembly.
Described step b3 also comprises:
B34, set up forward error correction encoding and decoding Bit Error Ratio Measurement alarm component;
B35, set up B1 error code alarm component;
B36, set up SDH (SDH (Synchronous Digital Hierarchy)) performance alarm assembly.
Described step c also comprises:
Each optical wavelength converting modules externally provides interface, and passes through other assemblies of interface interchange according to the assembly demand;
The interface interchange platform that each optical wavelength converting modules provides by platform calls external function by the registered callbacks function interface is provided;
Described external function comprises class function and overall situation function.
The present invention also provides the device of realizing the light wavelength conversion function in a kind of communication system, it is characterized in that comprising:
Parameter setting/recovery component: be used to set and finish the required parameter of light wavelength conversion function;
Command process assembly: be used for handling the required order to be processed of realization light wavelength conversion function;
Alarm component: when optical wavelength conversion element and veneer are formed device and be in alarm status, provide warning information;
The veneer device: parameter setting/recovery component, command process assembly and alarm component cooperate with the veneer device finishes the light wavelength conversion function.
Described parameter setting/recovery component comprises:
Default parameter remains to EEPROM (electricallyerasable ROM (EEROM)) assembly: be used for the various default parameters of optical module are remained to EEPROM;
Parameter change assembly: the parameter that is used for changing as required optical wavelength conversion element;
Configuration parameter remains to memory subassembly: be used for the parameter of configuration is remained to internal memory;
Configuration parameter remains to FLASH (read-write memory) assembly: be used for the parameter of configuration is remained to FLASH.
Described command process assembly comprises:
The active/standby single board changeover assembly: being used for switching condition and main and standby boards signal quality or selecting master or standby plane according to external command according to signal is the veneer of work at present state;
The single board main/standby signal is switched assembly: being used for switching condition and active and standby two ways of optical signals quality or selecting main or be equipped with light signal according to external command according to the active and standby light signal of veneer is the light signal of work at present state;
Laser automatic switch control assembly: be used for being provided with as required opening automatically/off state of laser;
Passage/light mouth user mode reports assembly: be used for monitoring channel/light mouth and whether be in user mode and it is reported.
Described alarm component comprises:
Optical module performance monitoring alarm component: the performance that is used to monitor input and output power, electric current and the laser of the optical module line correlation alarm of going forward side by side;
OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components: be used to handle OTU/ODU/OPU expense and performance alarm;
Temperature warning assembly: be used to detect the temperature of veneer and the temperature anomaly state is reported.
Utilize the present invention, to well being suitable for OO division methods based on the optical wavelength conversion element of realizing the light wavelength conversion function, and optical wavelength conversion element is divided into relatively independent assembly, make the degree of coupling of optical wavelength conversion element inter-module little, can study separately, test or safeguard each device of its each assembly and composition veneer, and not need that other composition devices of other assemblies and veneer are had a lot of understandings.Make assembly and optical wavelength conversion element easy to understand, be easy to test, be easy to safeguard, be easy to transplant.In addition, because inter-module is relatively independent, contact is simple, and the error propagation scope that occurs in certain assembly is little, thereby has reduced the error probability of optical wavelength conversion element, makes systematic function stable more, reliable.Thereby realized the purpose of optical wavelength conversion element code reuse, resource-sharing.
Description of drawings
Fig. 1, Fig. 2 are path protection schematic diagrames between plate;
Fig. 3, Fig. 4 are plate internal channel protection schematic diagrames.
Embodiment
For advantages of simplicity and high efficiency realizes the light wavelength conversion function, need decompose refinement to optical wavelength conversion element, its result who decomposes refinement should have the characteristic of code reuse resource-sharing.If when optical wavelength conversion element is decomposed refinement, take into full account its code reuse resource-sharing performance, need well to use OO method, to reduce the system, coupled degree.
The present invention realizes that the principle of optical wavelength conversion element decomposition refinement is: inter-module is separate, and each assembly is finished predetermined function separately.
Realize that concrete grammar of the present invention is: determine the function that dissimilar optical wavelength conversion elements need be realized, according to the relevance between these functions, dissimilar optical wavelength conversion elements is divided into tiny functional block, sets up assembly, make each assembly separate according to each functional block.Separate assembly cooperates the common light wavelength conversion function that realizes with the device of forming veneer.
The assembly of setting up by the present invention can only call mutually by the interface that assembly externally provides.When each assembly of realizing the veneer function is used on the actual veneer, the interface interchange assembly that other parts that realize the veneer function also can only externally provide by assembly.
The interface interchange platform function corresponding that assembly can provide by platform, other assemblies of interface interchange that can externally provide by other assemblies do not allow component call to realize other parts of veneer function.If certain assembly needs really to some content of external inquiry, and the content that needs to inquire about is that other any assemblies and platform all can't provide, then this assembly externally provides the registered callbacks function interface, pass through this interface registered callbacks function by the user, this function is realized by the outside, require to be the function of class or overall situation function, do not allow for the function of object.Component internal can be called this function that is registered.
When the present invention carries out the assembly division to optical wavelength conversion element, for reducing system, coupled, big function is divided into separate dismountable little function, thereby make optical wavelength conversion element have intelligibility preferably, testability, reliability, maintainability and portable have realized the purpose of optical wavelength conversion element code reuse, resource-sharing.
Be described in further detail below in conjunction with accompanying drawing and embodiment method and apparatus realization light wavelength conversion function of the present invention.
In order to realize the light wavelength conversion function, need optical wavelength conversion element and various types of veneer to share out the work and help one another, the present invention promptly is the function that realizes at dissimilar optical wavelength conversion elements, sets up parameter setting/recovery component, command process assembly and alarm component.
Parameter setting assembly wherein comprises that default parameter remains to EEPROM (electricallyerasable ROM (EEROM)), the parameter change assembly, and configuration parameter remains to memory subassembly, and configuration parameter remains to FLASH (read-write memory) assembly.
Command process assembly wherein comprises the active/standby single board changeover assembly, and the single board main/standby signal is switched assembly, laser automatic switch control assembly, and passage/light mouth user mode reports assembly.
Alarm component wherein comprises optical module performance monitoring alarm component, OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components, temperature warning assembly.
If need register when realizing the light wavelength conversion function, set up register read-write assembly for optical wavelength conversion element so, the register emulation component, register is patrolled and examined assembly, the register check assembly.
If need have the forward error correction encoding and decoding technique when realizing the light wavelength conversion function, realize the corresponding assembly of foundation of forward error correction codec functions so for optical wavelength conversion element.
Be assembly forward error correction encoding and decoding command process assembly and the forward error correction encoding and decoding Bit Error Ratio Measurement alarm component of realizing that the forward error correction codec functions is set up.
If need have B1 error code alarm function when realizing the light wavelength conversion function, set up B1 error code alarm component for the B1 error code alarm function of optical wavelength conversion element so.
If need have the performance alarm function of SDH (SDH (Synchronous Digital Hierarchy)) when realizing the light wavelength conversion function, set up the performance assembly of SDH (SDH (Synchronous Digital Hierarchy)) so for the performance alarm function of the SDH (Synchronous Digital Hierarchy) of optical wavelength conversion element.
Specify the function of each assembly below.
The function that default parameter is saved to EEPROM (electricallyerasable ROM (EEROM)) assembly is that the various default parameters with optical module are saved in EEPROM, promptly needs concrete each optical module is demarcated, and be the parameter list that each optical module generates its to be needed.Parameter list is put among the EEPROM on the optical module.Staking-out work can be that unit carries out with the optical module.The optical module that demarcation is good can directly be put on any veneer and use.
Because the optical module parameters needed table of different model may be different, with the optical module parameter list that needs and other components apart that realize the light wavelength conversion function, the parameter list that being about to optical module needs is placed in the eeprom chip, can make optical module and veneer relatively independent like this, laser can be dismantled flexibly and made up; The parameter list that is stored in the eeprom chip can be gone up download, uploading of parameter list needed the platform support, and the EEPROM file that provides corresponding function to finish demarcation is initialised to internal memory, and other assembly can use this parameter list to carry out the conversion of the analogue value to performance number.
The function of parameter change assembly is that parameter is changed processing accordingly as required.When controlling, there is more variable owing to realize the single board system of optical wavelength conversion element, these variablees comprise thresholding and gear shift value, and these variablees can not be changed or change less when reality is used, by the parameter change assembly parameter is carried out necessary thresholding change, the assembly of parameter change has simultaneously also made things convenient for the conversion of simulation value to performance number, makes the development moduleization of optical wavelength conversion element.
The function that configuration parameter remains to memory subassembly is that relevant configuration parameter is saved in the reserved memory.The memory parameters retention component is mainly used in and recovers related data when the optical wavelength conversion element warm reset.This assembly support is saved in reserved memory to configuration parameter, when the optical wavelength conversion element warm reset, the content that is defined in common variable among the RAM etc. may be lost, and the content of reserved memory can not change, so in the time of warm reset, can recover the variable among the RAM with the content that is kept in the reserved memory, make necessary configuration can with reset before be consistent, so just can non-interrupting service, business is not produced any influence.
Because the restore data function of this assembly, thus this assembly can be used to support the online upgrading optical wavelength conversion element, make when optical wavelength conversion element is upgraded and can not produce any influence business.
The function that configuration parameter remains to FLASH (read-write memory) assembly is that configuration parameter is saved among the FLASH.The characteristics of read-write memory are that the data of its preservation when power down can not lost.This assembly utilizes these characteristics of read-write memory, and configuration parameter is saved in FLASH.When optical wavelength conversion element hard reset or power down, the content that is defined in common variables among the RAM etc. may be lost, and the content among the FLASH can not change.So in the time of hard reset, can recover the variable among the RAM with the content that is kept among the FLASH, make optical wavelength conversion element necessity configuration can with reset before be consistent, optical wavelength conversion element still can use proper configuration to carry out work.
Because owing to hardware, business is interrupted after hard reset or the power down, it is professional that the function of this assembly is used for recovering behind hard reset.
The major function of active/standby single board changeover assembly is a path protection between plate, and the condition of switching that is about to the SF/SD (Signal Degrade/Signal Fail) on the veneer reports to main frame, and carries out external command.Path protection such as accompanying drawing 1, shown in Figure 2 between plate.
The transmitting terminal of optical wavelength conversion element is divided into two-way with the client side signal that receives through coupler 120 in Fig. 1, go up respectively on the veneer 100 and veneer 110 of optical wavelength conversion element, this two-way light that two veneers send mails to receiving terminal through different routes.Receiving terminal at the optical wavelength conversion element of Fig. 2, the two-way light that transmitting terminal sends enters the veneer 210 and the veneer 220 of optical wavelength conversion element respectively, the client laser device of two veneers of signal quality situation control that report according to two veneers by main control unit 200, selected client's side laser is opened, and does not have selected client's side laser to close.A road wherein selected process coupler of the light of client's side of two veneer receptions arrives client's side 230 times.Under normal circumstances, promptly select main light under the two ways of optical signals situation identical in quality with veneer.This locality of signal quality is switched the G.841 realization of the processing of condition with reference to ITU-T.
The major function that the single board main/standby signal is switched assembly for meet Signal Degrade/Signal Fail switch condition the time can carry out APS; and can carry out corresponding protection according to the external command that master control issues and switch work; the path protection of realization optical wavelength conversion element is switched; and, in the path protection system, play crucial effects to protecting the work of switching to monitor in real time in the optical wavelength conversion element.
Plate internal channel protection schematic diagram is shown in accompanying drawing 3 and accompanying drawing 4.
The transmitting terminal of optical wavelength conversion element comprises laser 300 and coupler 310, and the light that laser 300 will receive is sent to coupler 310, and the light that coupler 310 will receive is divided into identical two-way and sends.
This two-way light is set, and one the tunnel is main usefulness, and other one the tunnel is standby.It is this two-way light mails to optical wavelength conversion element through different routes receiving terminal.
The two-way light that receiving terminal 400 receiving end/sending ends send, active and standby two-way light enters behind the receiving terminal 400 and need 2 select 1 in active and standby two-way light by receiving terminal 400, under normal circumstances be two-way light is all selected primary route without any receiving terminal under the situation of problem 400 light, with the light signal output of primary route.
Receiving terminal 400 can be switched according to the signal quality of two-way light automatically, is G.841 realizing with reference to ITU-T to the relevant treatment of the condition of switching of external command and signal quality.G.841 the protection of optical wavelength conversion element internal channel meets ITU-T.
The major function of laser automatic switch control assembly is the automatic switch that function is controlled laser that automatically shuts down by the setting laser device.
The automatic laser shutdown function can be set to enable or forbid.
When the laser on off state is set to out, when the automatic laser shutdown function is set to enable,, then turn off this laser if corresponding input monitors the RLOS signal, after corresponding input monitors the RLOS disappearance, open laser automatically.
When the laser on off state was set to close, then the automatic laser shutdown function was under an embargo, and promptly no matter whether corresponding input monitors RLOS, and laser keeps original on off state constant.
Laser automatic switch control assembly encapsulates the primary demand of veneer in the wavelength-division system to laser control, forms an independent module, and the automatic controlled function to a plurality of lasers can be provided, and comprises the control of automatic laser shutdown and laser switch.The user can carry out necessary configuration according to the concrete condition of own veneer.
It is command interface and the function interface that setting/inquiry passage/whether the light mouth uses that passage/light mouth user mode reports the major function of assembly.When passage/when the light mouth is obsolete, do not report corresponding performance alarm, and do not carry out respective channel/protection of light mouth switches.
The major function of register read-write assembly is by functions such as register read-write being encapsulated, interface externally is provided, and all are undertaken by the interface that register read-write assembly provides the operation of chip register.The interface that register read-write assembly provides is consistent with the interface that provides when PC (the Personal Computer personal computer) emulation.
The major function of register emulation component is on PC register functions to be carried out emulation, thereby makes things convenient for the debugging of correlation function, and the debugging test that makes software etc. can not rely on particular hardware and carries out.
The register emulation component also will be supported various special functions except the most basic read-write capability of emulation, as: readable writing, read-only, only write, read clearly 0, read clearly 1, write 1 clear 0, write 1 clearly 1, write 0 clearly 0, write 0 clearly 1, and will provide the interface support association between the different registers.
The major function that register is patrolled and examined assembly is that the data in the register are patrolled and examined and recovered.
It is is specifically patrolled and examined and the process of restore data is: the data in the register are backed up, the register backed up data is stored among the RAM (random asccess memory).Because the anti-low pressure ability of the RAM on the veneer is better than the anti-low pressure ability of chip, so when voltage has fluctuation within the specific limits, the content of storing in the chip register may be lost, and RAM is because the ability of anti-low pressure is strong, so the content of storing among the RAM can remain intact, the phenomenon of loss of data does not appear.
Therefore come the data in the chip register are backed up by RAM, and according to Backup Data the data in the actual register are patrolled and examined on time.Data in finding actual register and RAM backed up data are used the data in the RAM backed up data recovery register not simultaneously.
The major function of register check assembly is to be used for hardware FPGA (field programmable gate array) a special low pressure verification register is provided, and can reflect the situation of FPGA work by the read-write situation to the low pressure check register.This assembly is by carrying out write operation to the low pressure check register, read the value of this register then, if carry out such operation several times all is that readout does not meet with the value of writing, think that then veneer may be in low-pressure state, the read-write capability of register can't normally be carried out, the hard reset veneer.
The major function of optical module performance monitoring alarm component is for realizing the processing to optical module performance/alarm etc.; Support performance/alarms such as electric current/luminous power; The performance of the laser of supporting has: input optical power, Output optical power, bias current, refrigeration electric current etc.; The alarm of the laser of supporting has: input optical power is too high, and input optical power is low excessively, and Output optical power is too high, and Output optical power is low excessively, and laser life-span is about to termination, and laser sends Signal Degrade.
The major function of OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components is for to be used for G.709 advising the being standardization of ITU-T to OTN (optical transfer network) interface, in order to UNI (User Network Interface) and the exploitation of NNI (Network-Node Interface) interface unit of instructing OTN equipment.At in the suggestion about the regulation of OTN expense, give the actual conditions of closing product, formulate the demand of assembly, instruct the exploitation of optical wavelength conversion element with OTN expense.
The major function of temperature warning assembly is carried out temperature monitoring by certain chip to veneer for supporting, carries out temperature warning in too high or too low for temperature.
G.709 or G.975, speed is not limit the forward error correction encoding and decoding technique mainly is applicable in the system that realizes wavelength-division product treatment FEC (forward error correction) function, and the frame format of chip that is used to handle the FEC function is for.The forward error correction encoding and decoding technique is on the basis of original signal, increases some FEC codings in addition, by increasing the FEC coding, just can carry out the correction of mistake to a certain degree at receiving terminal.Can carry out the statistics that some have corrected content in the time of the FEC error correction, carry out the alarm of the error rate according to statistics.
The major function of forward error correction encoding and decoding command process assembly is for to carry out the processing of forward error correction encoding and decoding related command to light signal.
The major function of forward error correction encoding and decoding Bit Error Ratio Measurement assembly is that some alarming thresholds, the error code of statistics in the light signal are set, and calculates the error rate and carries out the report and alarm of the error rate.
The major function of B1 error code alarm component is alarmed when the error code in signal reaches the error code threshold value for setting the error code threshold value.This assembly is mainly used on the veneer that needs in the wavelength-division product error codes such as B1/B2/B3 are handled.Simultaneously also can be similar to error code function blocks that B1/B2/B3 handles and use, as the SM section in the structure G.709, the processing of the BIP8 error code of PM section for other.
The major function of the performance alarm assembly of SDH (SDH (Synchronous Digital Hierarchy)) is to carry out report and alarm at some performances of SDH (Synchronous Digital Hierarchy).Report the performance alarm incident of various SDH by the processing to some important chip overhead byte, general SDH performance to be processed has B1, B2, OOF, and general SDH alarm to be processed has LOS, LOF, OOF, B1, B2 and J0 mismatch etc.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wishes that appended claim comprises these distortion and variation.
Claims (12)
1. realize the method for light wavelength conversion function in the communication system, it is characterized in that comprising:
A, the function that all types of optical wavelength conversion elements need be realized are analyzed and are divided according to the relevance between each function;
B, set up corresponding optical wavelength converting modules respectively according to dividing the result;
C, each optical wavelength converting modules and veneer are formed device and are cooperated realization light wavelength conversion function.
2. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 1, it is characterized in that described step b comprises:
B1, set up parameter setting/recovery component;
B2, set up the command process assembly;
B3, set up alarm component.
3. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 2, it is characterized in that described step b1 comprises:
B11, set up default parameter and remain to EEPROM (electricallyerasable ROM (EEROM)) assembly;
B12, set up the parameter change assembly;
B13, set up configuration parameter and remain to memory subassembly;
B14, set up configuration parameter and remain to FLASH (read-write memory) assembly.
4. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 2, it is characterized in that described step b2 comprises:
B21, set up the active/standby single board changeover assembly;
B22, set up the single board main/standby signal and switch assembly;
B23, set up laser automatic switch control assembly;
B24, set up passage/light mouth user mode and report assembly.
5. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 2, it is characterized in that described step b2 also comprises:
B25, set up register read-write assembly;
B26, set up the register emulation component;
B27, set up register and patrol and examine assembly;
B28, set up register low pressure verification assembly;
B29, set up forward error correction encoding and decoding command process assembly.
6. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 2, it is characterized in that described step b3 comprises:
B31, set up optical module performance monitoring alarm component;
B32, set up OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components;
B33, set up the temperature warning assembly.
7. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 2, it is characterized in that described step b3 also comprises:
B34, set up forward error correction encoding and decoding Bit Error Ratio Measurement alarm component;
B35, set up B1 error code alarm component;
B36, set up SDH (SDH (Synchronous Digital Hierarchy)) performance alarm assembly.
8. realize the method for light wavelength conversion function in a kind of communication system as claimed in claim 1 or 2, it is characterized in that described step c also comprises:
Each optical wavelength converting modules externally provides interface, and passes through other assemblies of interface interchange according to the assembly demand;
The interface interchange platform that each optical wavelength converting modules provides by platform calls external function by the registered callbacks function interface is provided;
Described external function comprises class function and overall situation function.
9. realize the device of light wavelength conversion function in the communication system, it is characterized in that comprising:
Parameter setting/recovery component: be used to set and finish the required parameter of light wavelength conversion function;
Command process assembly: be used for handling the required order to be processed of realization light wavelength conversion function;
Alarm component: when optical wavelength conversion element and veneer are formed device and be in alarm status, provide warning information;
The veneer device: parameter setting/recovery component, command process assembly and alarm component cooperate with the veneer device finishes the light wavelength conversion function.
10. realize the device of light wavelength conversion function in a kind of communication system as claimed in claim 9, it is characterized in that described parameter setting/recovery component comprises:
Default parameter remains to EEPROM (electricallyerasable ROM (EEROM)) assembly: be used for the various default parameters of optical module are remained to EEPROM;
Parameter change assembly: the parameter that is used for changing as required optical wavelength conversion element;
Configuration parameter remains to memory subassembly: be used for the parameter of configuration is remained to internal memory;
Configuration parameter remains to FLASH (read-write memory) assembly: be used for the parameter of configuration is remained to FLASH.
11. realize the device of light wavelength conversion function in a kind of communication system as claimed in claim 9, it is characterized in that described command process assembly comprises:
The active/standby single board changeover assembly: being used for switching condition and main and standby boards signal quality or selecting master or standby plane according to external command according to signal is the veneer of work at present state;
The single board main/standby signal is switched assembly: being used for switching condition and active and standby two ways of optical signals quality or selecting main or be equipped with light signal according to external command according to the active and standby light signal of veneer is the light signal of work at present state;
Laser automatic switch control assembly: be used for being provided with as required opening automatically/off state of laser;
Passage/light mouth user mode reports assembly: be used for monitoring channel/light mouth and whether be in user mode and it is reported.
12. realize the device of light wavelength conversion function in a kind of communication system as claimed in claim 9, it is characterized in that described alarm component comprises:
Optical module performance monitoring alarm component: the performance that is used to monitor input and output power, electric current and the laser of the optical module line correlation alarm of going forward side by side;
OTU/ODU/OPU (Optical Channel Transport Unit-k/Optical Channel Data Unit-k/optical channel Payload Unit) performance alarm processing components: be used to handle OTU/ODU/OPU expense and performance alarm;
Temperature warning assembly: be used to detect the temperature of veneer and the temperature anomaly state is reported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03145030XA CN100395972C (en) | 2003-06-18 | 2003-06-18 | Method and apparatus for implementing optical wavelength conversion function in communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB03145030XA CN100395972C (en) | 2003-06-18 | 2003-06-18 | Method and apparatus for implementing optical wavelength conversion function in communication system |
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| CN1567806A true CN1567806A (en) | 2005-01-19 |
| CN100395972C CN100395972C (en) | 2008-06-18 |
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| CNB03145030XA Expired - Fee Related CN100395972C (en) | 2003-06-18 | 2003-06-18 | Method and apparatus for implementing optical wavelength conversion function in communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345597B (en) * | 2008-08-12 | 2012-11-28 | 中兴通讯股份有限公司 | Method and apparatus for implementing automatic laser cut-out of synchronization digital system equipment |
| CN103684834A (en) * | 2012-09-24 | 2014-03-26 | 中兴通讯股份有限公司 | Single board switching method and device |
| CN108964757A (en) * | 2017-05-19 | 2018-12-07 | 北京华为数字技术有限公司 | Signal errors alarm method and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003046483A (en) * | 2001-07-27 | 2003-02-14 | Toshiba Corp | Optical transmission module and optical transmitter for optical wavelength multiplex transmission and extension method for the optical transmission module in the optical transmitter for optical wavelength multiplex transmission |
-
2003
- 2003-06-18 CN CNB03145030XA patent/CN100395972C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345597B (en) * | 2008-08-12 | 2012-11-28 | 中兴通讯股份有限公司 | Method and apparatus for implementing automatic laser cut-out of synchronization digital system equipment |
| CN103684834A (en) * | 2012-09-24 | 2014-03-26 | 中兴通讯股份有限公司 | Single board switching method and device |
| CN103684834B (en) * | 2012-09-24 | 2017-11-24 | 中兴通讯股份有限公司 | A kind of board switchover method and device |
| CN108964757A (en) * | 2017-05-19 | 2018-12-07 | 北京华为数字技术有限公司 | Signal errors alarm method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100395972C (en) | 2008-06-18 |
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