CN102984606B - Realize the method and apparatus of dynamic rate service access - Google Patents
Realize the method and apparatus of dynamic rate service access Download PDFInfo
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Abstract
The invention discloses a kind of method realizing dynamic rate service access, comprise: receive dynamic rate business datum, the configuration parameter of configuration dynamic rate business datum, according to configuration parameter, dynamic rate business datum is mapped in ODUK, and form the mapping cost corresponding with dynamic rate business datum; When accessing dynamic rate business, extracting mapping cost, according to mapping cost, demapping being carried out to the dynamic rate business datum in ODUK.The invention also discloses a kind of device realizing dynamic rate service access.Adopt scheme disclosed in this invention, by dynamic rate business datum is carried out mapping and demapping, achieve and access dynamic rate business in OTN network, and expanded the range of application of OTN optical communication network to a great extent.
Description
Technical field
The present invention relates to technical field of photo communication, be related specifically to a kind of method and apparatus realizing dynamic rate service access.
Background technology
OTN(Optical Transport Network, optical transfer network), being based on wavelength-division multiplex technique, in the transport network of photosphere organization network, is follow-on Backbone Transport Network.OTN be by G.872, G.709, a series of ITU-T(ITU-T for ITU Telecommunication Standardization Sector such as G.798, International Telecommunication Union's telecommunication standardsization tissue) a new generation's " digital transmission system " of suggestion institute specification and " optical transport hierarchy ".OTN is for solving traditional WDM(Wavelength Division Multiplexing, Wave division multiplexing) network is without wavelength/wavelet long traffic scheduling ability, the problem such as networking capability is weak, protective capability is weak.
OTN develops relatively rapider at present, have wide range of applications, and its type of service supported also constantly increases.Current OTN mainly supports the business of fixed rate, as ODUk(OpticalChannel Data Unit) overhead byte, k equals 0/1/2/3, and the speed of these business is all fixing usually.And developing rapidly along with Intemet data traffic, the demand of dynamic rate business increases, and this just requires that OTN supports dynamic rate business, proposes higher requirement to OTN network.But OTN can not support dynamic rate business under current ODUk speed grade, just cannot realize accessing dynamic rate business in OTN network, thus reduce the range of application of OTN network.
Summary of the invention
Main purpose of the present invention, for providing a kind of method and apparatus realizing dynamic rate service access, is intended to realize accessing dynamic rate business in OTN network, thus can expands the range of application of OTN optical communication network.
The invention provides a kind of method realizing dynamic rate service access, comprising:
Receive dynamic rate business datum, configure the configuration parameter of described dynamic rate business datum, according to described configuration parameter, described dynamic rate business datum is mapped in ODUK, and form the mapping cost corresponding with described dynamic rate business datum;
When accessing described dynamic rate business, extracting described mapping cost, according to described mapping cost, demapping being carried out to the described dynamic rate business datum in described ODUK.
Preferably, the number of timeslots of the configuration parameter of described dynamic rate business datum shared by described dynamic rate business and position.
Preferably, describedly according to configuration parameter, described dynamic rate business datum to be mapped in ODUK, and forms the mapping cost corresponding with described dynamic rate business datum and comprise:
Obtain described configuration parameter, generate and write data controlling signal, described dynamic rate business datum is write in fifo buffer;
Receive the read signal that described fifo buffer sends, generate read data control signal, read described dynamic rate business datum from described fifo buffer;
Described dynamic rate business datum according to reading produces ODUK frame signal, and described dynamic rate business datum is deposited the payload section to described ODUK;
Form the mapping cost corresponding with described dynamic rate business datum, described mapping cost is deposited the expense position to described ODUK.
Preferably, when accessing described dynamic rate business, before the described extraction mapping cost of execution goes forward side by side row relax, also comprise:
According to the described dynamic rate business datum of access, configure the configuration parameter of described dynamic rate business datum.
Preferably, described extraction mapping cost, carries out demapping according to described mapping cost to the described dynamic rate business datum in described ODUK and comprises:
Extract described mapping cost from the expense position of described ODUK, extract described dynamic rate business datum from the payload section of described ODUK;
Generate according to described mapping cost and write data controlling signal, described dynamic rate business datum is write in fifo buffer;
Receive the read signal that described fifo buffer sends, generate read data control signal, read described dynamic rate business datum from described fifo buffer, access described dynamic rate business.
Preferably, after execution carries out demapping according to described mapping cost to the described dynamic rate business datum in described ODUK, also comprise:
Delete described mapping cost.
The present invention also provides a kind of device realizing dynamic rate service access, comprising:
Mapping block, for receiving dynamic rate business datum, configure the configuration parameter of described dynamic rate business datum, according to described configuration parameter, described dynamic rate business datum is mapped in ODUK, and form the mapping cost corresponding with described dynamic rate business datum;
De-mapping module, for when accessing described dynamic rate business, extracting described mapping cost, carrying out demapping according to described mapping cost to the described dynamic rate business datum in described ODUK.
Preferably, described mapping block comprises:
Map dispensing unit, for configuring the configuration parameter of dynamic rate business datum, number of timeslots shared by described dynamic rate business of the configuration parameter of described dynamic rate business datum and position.
Preferably, described mapping block also comprises:
Map write data unit, for obtaining described configuration parameter, generating and writing data controlling signal, described dynamic rate business datum is write in fifo buffer;
Map reading data unit, for receiving the read signal that described fifo buffer sends, generating read data control signal, reading described dynamic rate business datum from described fifo buffer;
Map unit, for producing ODUK frame signal according to the described dynamic rate business datum read, and deposits the payload section to described ODUK by described dynamic rate business datum;
Mapping cost forming unit, for the formation of the mapping cost corresponding with described dynamic rate business datum, deposits the expense position to described ODUK by described mapping cost.
Preferably, described De-mapping module comprises:
Demapping dispensing unit, for the described dynamic rate business datum according to access, configures the configuration parameter of described dynamic rate business datum, number of timeslots shared by described dynamic rate business of the configuration parameter of described dynamic rate business datum and position.
Preferably, described De-mapping module also comprises:
Extraction unit, extracts described mapping cost for the expense position from described ODUK, extracts described dynamic rate business datum from the payload section of described ODUK;
Demapping write data unit, writing data controlling signal for generating according to described mapping cost, writing in fifo buffer by described dynamic rate business datum;
Demapping reading data unit, for receiving the read signal that described fifo buffer sends, generating read data control signal, reading described dynamic rate business datum, access described dynamic rate business from described fifo buffer.
Preferably, described De-mapping module also comprises:
Mapping cost delete cells, for deleting described mapping cost.
The present invention is by after reception dynamic rate business datum, and the configuration parameter of configuration dynamic rate business datum, maps to dynamic rate business datum in ODUK according to configuration parameter, and form the mapping cost corresponding with dynamic rate business datum; And when accessing dynamic rate business in OTN optical communication network, extract mapping cost, and according to mapping cost, demapping is carried out to the dynamic rate business datum in ODUK, complete the access of dynamic rate business.By dynamic rate business datum is carried out mapping and demapping, achieve and access dynamic rate business in OTN network, and expanded the range of application of OTN optical communication network to a great extent.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet that the present invention realizes method one embodiment of dynamic rate service access;
Fig. 2 is that the present invention realizes the schematic flow sheet of dynamic rate business datum mapping in the method for dynamic rate service access;
Fig. 3 is the schematic flow sheet that the present invention realizes another embodiment of method of dynamic rate service access;
Fig. 4 is the schematic flow sheet that the present invention realizes to dynamic rate business datum demapping in the method for dynamic rate service access;
Fig. 5 is the schematic flow sheet of the method embodiment again that the present invention realizes dynamic rate service access;
Fig. 6 is the structural representation that the present invention realizes device one embodiment of dynamic rate service access;
Fig. 7 is the structural representation that the present invention realizes mapping block in the device of dynamic rate service access;
Fig. 8 is the structural representation that the present invention realizes the first execution mode of De-mapping module in the device of dynamic rate service access;
Fig. 9 is the structural representation that the present invention realizes De-mapping module the second execution mode in the device of dynamic rate service access;
Figure 10 is the structural representation that the present invention realizes the third execution mode of De-mapping module in the device of dynamic rate service access.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of method realizing dynamic rate service access, map in ODUK to the dynamic rate business datum of input, when accessing dynamic rate business, from ODUK, extract dynamic rate business datum demapping is carried out to it, thus realize the carrying of OTN optical communication network to dynamic rate business.
Reference Fig. 1, Fig. 1 are the schematic flow sheet that the present invention realizes method one embodiment of dynamic rate service access.
The method of dynamic rate service access that what the present embodiment provided realize, comprising:
Step S10, receives dynamic rate business datum, and the configuration parameter of configuration dynamic rate business datum, maps to dynamic rate business datum in ODUK according to configuration parameter, and form the mapping cost corresponding with dynamic rate business datum;
When by OTN optical communication network access dynamic rate business, after receiving dynamic rate business datum, first according to this dynamic rate business, the configuration parameter of dynamic rate business datum is configured, in the present embodiment, the configuration parameter configured is the number of timeslots shared in OTN of dynamic rate business and position.Then, dynamic rate business datum mapped in ODUK according to configuration parameter, and form the mapping cost corresponding with dynamic rate business datum, this mapping cost is used for carrying out unique identification to the dynamic rate business datum mapped in ODUK.Dynamic rate business datum is mapped to after in ODUK, corresponding dynamic rate business datum can be extracted for when accessing dynamic rate business in ODUK, and demapping is carried out to these data.
Step S20, when accessing dynamic rate business, extracting mapping cost, carrying out demapping according to mapping cost to the dynamic rate business datum in ODUK.
After completing the dynamic rate business datum received mapped, when needs by dynamic rate service access to OTN optical communication network time, first the mapping cost being used for the dynamic rate business datum of identity map in ODUK is extracted, then according to this mapping cost, demapping is carried out to the dynamic rate business datum in ODUK, thus complete in OTN optical communication network by carrying out the access of dynamic rate business to the mapping of dynamic rate business datum and the process of demapping.
The embodiment of the present invention, by after reception dynamic rate business datum, the configuration parameter of configuration dynamic rate business datum, maps to dynamic rate business datum in ODUK according to configuration parameter, and forms the mapping cost corresponding with dynamic rate business datum; And when accessing dynamic rate business in OTN optical communication network, extract mapping cost, and according to mapping cost, demapping is carried out to the dynamic rate business datum in ODUK, complete the access of dynamic rate business.By dynamic rate business datum is carried out mapping and demapping, achieve and access dynamic rate business in OTN network, and expanded the range of application of OTN optical communication network to a great extent.
Reference Fig. 2, Fig. 2 are that the present invention realizes the schematic flow sheet of dynamic rate business datum mapping in the method for dynamic rate service access.
In the above-described embodiments, according to configuration parameter, dynamic rate business datum is mapped in ODUK in step S10, and the step forming the mapping cost corresponding with dynamic rate business datum comprises:
Step S11, obtains configuration parameter, generates and writes data controlling signal, write in fifo buffer by dynamic rate business datum;
According to dynamic rate business, after dynamic rate business datum is configured with corresponding configuration parameter, when performing dynamic rate business datum and mapping, first the configuration parameter configured is obtained, and generate according to configuration parameter and write data controlling signal, this is write data controlling signal and is used to indicate and received dynamic rate business datum is write in fifo buffer FIFO.Then, according to writing data controlling signal, dynamic rate business datum is write in FIFO.
Step S12, receives the read signal that fifo buffer sends, and generates read data control signal, reads dynamic rate business datum from fifo buffer;
When dynamic rate business datum writes to after in FIFO, FIFO can send the read signal that an instruction can read wherein data, after receiving this read signal, namely generate a read data control signal, this read data control signal is used to indicate the dynamic rate business datum write before reading from FIFO.Then, from FIFO, dynamic rate business datum is read according to read data control signal.
Step S13, produces ODUK frame signal according to the dynamic rate business datum read, and dynamic rate business datum is deposited the payload section to ODUK;
Step S14, forms the mapping cost corresponding with dynamic rate business datum, mapping cost is deposited the expense position to ODUK.
After reading dynamic rate business datum, need to carry out data encapsulation to it, be packaged in ODUK by it, now, produce an ODUK frame signal according to dynamic rate business datum, this ODUK frame is used to indicate and is inserted in ODUK by dynamic rate business datum; Then, dynamic rate business datum is deposited the payload section to ODUK, leave the dynamic rate business datum in the payload section of ODUK in, can for reading when accessing dynamic rate business and carrying out demapping to it.Meanwhile, formed one corresponding with dynamic rate business datum, for the mapping cost of the dynamic rate business datum of identity map in ODUK, and this mapping cost is deposited the expense position to ODUK.
When dynamic rate business datum is mapped, first the configuration parameter that it configures is retrieved as, and write data controlling signal according to the generation of this configuration parameter, dynamic rate business datum is write in fifo buffer, then generate read data control signal, read dynamic rate business datum from fifo buffer; ODUK frame signal is produced according to the dynamic rate business datum read, and dynamic rate business datum is deposited the payload section to ODUK, form the mapping cost corresponding with dynamic rate business datum simultaneously, mapping cost is deposited the expense position to ODUK, thus provide the foundation for realizing accessing dynamic rate business in OTN network.
Reference Fig. 3, Fig. 3 are the schematic flow sheet that the present invention realizes another embodiment of method of dynamic rate service access.
Realize method one embodiment of dynamic rate service access based on the present invention, when accessing dynamic rate business, carry out demapping according to mapping cost to the dynamic rate business datum in ODUK in execution step S20 before, the method also comprises:
Step S30, according to the dynamic rate business datum of access, the configuration parameter of configuration dynamic rate business datum.
When needs are by OTN optical communication network access dynamic rate business, first according to accessed dynamic rate business datum, its configuration parameter is configured.In the present embodiment, the configuration parameter configured is the number of timeslots shared in OTN of dynamic rate business and position.
Before demapping is carried out to dynamic rate business datum, first for dynamic rate business datum configures corresponding configuration parameter, for performing demapping according to this configuration parameter and realizing the access of dynamic rate business, for convenience of extracting dynamic rate business datum from ODUK, and demapping is carried out to it provide the foundation.
Reference Fig. 4, Fig. 4 are the schematic flow sheet that the present invention realizes to dynamic rate business datum demapping in the method for dynamic rate service access.
Based on above-described embodiment, step S20 comprises:
Step S21, extracts mapping cost from the expense position of ODUK, extracts dynamic rate business datum from the payload section of ODUK;
When performing the access of dynamic rate business, first extract the mapping cost for the dynamic rate business datum of identity map among ODUK from the expense position of ODUK, and extract the dynamic rate business datum corresponding with this mapping cost from the payload section of ODUK.
Step S22, generates according to mapping cost and writes data controlling signal, write in fifo buffer by dynamic rate business datum;
After extracting dynamic rate business datum according to mapping cost, generate according to mapping cost and one write data controlling signal, this is write data controlling signal and is used to indicate and writes in the payload section of extracted ODUK in fifo buffer FIFO through the dynamic rate business datum of encapsulation.Then, according to writing data controlling signal, the dynamic rate business datum extracted is write in FIFO.
Step S23, receives the read signal that fifo buffer sends, and generates read data control signal, reads dynamic rate business datum from fifo buffer, access dynamic rate business.
Equally, after FIFO receives write dynamic rate business datum, the read signal that an instruction can read wherein data can be sent, and generating read data control signal according to this read signal, this read data control signal is used to indicate the dynamic rate business datum write before reading from FIFO.Then, from FIFO, dynamic rate business datum is read according to read data control signal.Like this, just complete the demapping to dynamic rate business datum, thus achieve dynamic rate service access in OTN optical communication network.
When the dynamic rate business datum in ODUK is carried out demapping, first extract mapping cost from the expense position of ODUK, extract the dynamic rate business datum corresponding with this mapping cost from the payload section of ODUK; Generate according to mapping cost and write data controlling signal, dynamic rate business datum is write in fifo buffer, then generate read data control signal, dynamic rate business datum is read from fifo buffer, complete access dynamic rate business, this just further ensures and can realize accessing dynamic rate business in OTN network, and has expanded the range of application of OTN optical communication network further.
With reference to the schematic flow sheet that Fig. 5, Fig. 5 are the method embodiment again that the present invention realizes dynamic rate service access.
Based on above-described embodiment, after execution step S20, the method also comprises:
Step S40, deletes mapping cost.
Extracting mapping cost, and extract according to it dynamic rate business datum mapped in payload section of ODUK further, demapping is carried out to this dynamic rate business datum, and realizing after in dynamic rate service access to OTN optical communication network, the mapping cost that will be used for identifying this dynamic rate business datum is deleted.
The dynamic rate business datum mapped in the payload section of extracting ODUK, after demapping is carried out to this dynamic rate business datum, delete mapping cost, with facilitate upper once dynamic rate business datum is mapped time generated the mapping cost of mark action, thus it is more simple, convenient to make in OTN network, access dynamic rate business.
The present invention also provides a kind of device realizing dynamic rate service access.
Reference Fig. 6, Fig. 6 are the structural representation that the present invention realizes device one embodiment of dynamic rate service access.
The device of dynamic rate service access that what the present embodiment provided realize, comprising:
Mapping block 10, for receiving dynamic rate business datum, the configuration parameter of configuration dynamic rate business datum, maps to dynamic rate business datum in ODUK according to configuration parameter, and forms the mapping cost corresponding with dynamic rate business datum;
De-mapping module 20, for when accessing dynamic rate business, extracting mapping cost, carrying out demapping according to mapping cost to the dynamic rate business datum in ODUK.
In the present embodiment, mapping block 10 comprises:
Map dispensing unit 11, for configuring the configuration parameter of dynamic rate business datum, number of timeslots shared by dynamic rate business of the configuration parameter of dynamic rate business datum and position.
When by OTN optical communication network access dynamic rate business, after receiving dynamic rate business datum, the mapping dispensing unit 11 of mapping block 10 is first according to this dynamic rate business, the configuration parameter of dynamic rate business datum is configured, in the present embodiment, the configuration parameter configured is the number of timeslots shared in OTN of dynamic rate business and position.Then, dynamic rate business datum maps in ODUK according to configuration parameter by mapping block 10, and form the mapping cost corresponding with dynamic rate business datum, this mapping cost is used for carrying out unique identification to the dynamic rate business datum mapped in ODUK.Dynamic rate business datum is mapped to after in ODUK, corresponding dynamic rate business datum can be extracted for when accessing dynamic rate business in ODUK, and demapping is carried out to these data.
After completing the dynamic rate business datum received mapped, when needs by dynamic rate service access to OTN optical communication network time, first De-mapping module 20 extracts the mapping cost being used for the dynamic rate business datum of identity map in ODUK, then according to this mapping cost, demapping is carried out to the dynamic rate business datum in ODUK, thus complete in OTN optical communication network by carrying out the access of dynamic rate business to the mapping of dynamic rate business datum and the process of demapping.
The embodiment of the present invention, by after reception dynamic rate business datum, the configuration parameter of configuration dynamic rate business datum, maps to dynamic rate business datum in ODUK according to configuration parameter, and forms the mapping cost corresponding with dynamic rate business datum; And when accessing dynamic rate business in OTN optical communication network, extract mapping cost, and according to mapping cost, demapping is carried out to the dynamic rate business datum in ODUK, complete the access of dynamic rate business.By dynamic rate business datum is carried out mapping and demapping, achieve and access dynamic rate business in OTN network, and expanded the range of application of OTN optical communication network to a great extent.
Reference Fig. 7, Fig. 7 are the structural representation that the present invention realizes mapping block in the device of dynamic rate service access.
Based on above-described embodiment, mapping block 10 also comprises:
Map write data unit 12, for obtaining configuration parameter, generating and writing data controlling signal, dynamic rate business datum is write in fifo buffer;
Map reading data unit 13, for receiving the read signal that fifo buffer sends, generating read data control signal, reading dynamic rate business datum from fifo buffer;
Map unit 14, for producing ODUK frame signal according to the dynamic rate business datum read, and deposits the payload section to ODUK by dynamic rate business datum;
Mapping cost forming unit 15, for the formation of the mapping cost corresponding with dynamic rate business datum, deposits the expense position to ODUK by mapping cost.
According to dynamic rate business, after dynamic rate business datum is configured with corresponding configuration parameter, when performing dynamic rate business datum and mapping, map write data unit 12 and first obtain the configuration parameter configured, and generate according to configuration parameter and write data controlling signal, this is write data controlling signal and is used to indicate and received dynamic rate business datum is write in fifo buffer FIFO.Then, according to writing data controlling signal, dynamic rate business datum is write in FIFO.
When dynamic rate business datum writes to after in FIFO, FIFO can send the read signal that an instruction can read wherein data, after receiving this read signal, namely generate a read data control signal by mapping reading data unit 13, this read data control signal is used to indicate the dynamic rate business datum write before reading from FIFO.Then, from FIFO, dynamic rate business datum is read according to read data control signal.
After reading dynamic rate business datum, need to carry out data encapsulation by map unit 14 to it, be packaged in ODUK by it, now, produce an ODUK frame signal according to dynamic rate business datum, this ODUK frame is used to indicate and is inserted in ODUK by dynamic rate business datum; Then, dynamic rate business datum is deposited the payload section to ODUK, leave the dynamic rate business datum in the payload section of ODUK in, can for reading when accessing dynamic rate business and carrying out demapping to it.Meanwhile, by mapping cost forming unit 15 formed one corresponding with dynamic rate business datum, for the mapping cost of the dynamic rate business datum of identity map in ODUK, and this mapping cost is deposited the expense position to ODUK.
When dynamic rate business datum is mapped, first the configuration parameter that it configures is retrieved as, and write data controlling signal according to the generation of this configuration parameter, dynamic rate business datum is write in fifo buffer, then generate read data control signal, read dynamic rate business datum from fifo buffer; ODUK frame signal is produced according to the dynamic rate business datum read, and dynamic rate business datum is deposited the payload section to ODUK, form the mapping cost corresponding with dynamic rate business datum simultaneously, mapping cost is deposited the expense position to ODUK, thus provide the foundation for realizing accessing dynamic rate business in OTN network.
Reference Fig. 8, Fig. 8 are the structural representation that the present invention realizes the first execution mode of De-mapping module in the device of dynamic rate service access.
Realize device one embodiment of dynamic rate service access based on the present invention, De-mapping module 20 comprises:
Demapping dispensing unit 21, for the dynamic rate business datum according to access, the configuration parameter of configuration dynamic rate business datum, number of timeslots shared by dynamic rate business of the configuration parameter of dynamic rate business datum and position.
When needs are by OTN optical communication network access dynamic rate business, first demapping dispensing unit 21 according to accessed dynamic rate business datum, is configured its configuration parameter.In the present embodiment, the configuration parameter configured is the number of timeslots shared in OTN of dynamic rate business and position.
Before demapping is carried out to dynamic rate business datum, first for dynamic rate business datum configures corresponding configuration parameter, for performing demapping according to this configuration parameter and realizing the access of dynamic rate business, for convenience of extracting dynamic rate business datum from ODUK, and demapping is carried out to it provide the foundation.
Reference Fig. 9, Fig. 9 are the structural representation that the present invention realizes De-mapping module the second execution mode in the device of dynamic rate service access.
Based on above-described embodiment, De-mapping module 20 also comprises:
Extraction unit 22, extracts described mapping cost for the expense position from ODUK, extracts dynamic rate business datum from the payload section of ODUK;
Demapping write data unit 23, writing data controlling signal for generating according to mapping cost, writing in fifo buffer by dynamic rate business datum;
Demapping reading data unit 24, for receiving the read signal that fifo buffer sends, generating read data control signal, reading dynamic rate business datum from fifo buffer, access dynamic rate business.
When performing the access of dynamic rate business, first extracted for the mapping cost for the dynamic rate business datum of identity map among ODUK by the expense position of extraction unit 22 from ODUK, and extract the dynamic rate business datum corresponding with this mapping cost from the payload section of ODUK.
After extracting dynamic rate business datum according to mapping cost, demapping write data unit 23 generates according to mapping cost and one writes data controlling signal, and this is write data controlling signal and is used to indicate and writes in the payload section of extracted ODUK in fifo buffer FIFO through the dynamic rate business datum of encapsulation.Then, according to writing data controlling signal, the dynamic rate business datum extracted is write in FIFO.
Equally, after FIFO receives write dynamic rate business datum, the read signal that an instruction can read wherein data can be sent, demapping reading data unit 24 generates read data control signal according to this read signal, and this read data control signal is used to indicate the dynamic rate business datum write before reading from FIFO.Then, from FIFO, dynamic rate business datum is read according to read data control signal.Like this, just complete the demapping to dynamic rate business datum, thus achieve dynamic rate service access in OTN optical communication network.
When the dynamic rate business datum in ODUK is carried out demapping, first extract mapping cost from the expense position of ODUK, extract the dynamic rate business datum corresponding with this mapping cost from the payload section of ODUK; Generate according to mapping cost and write data controlling signal, dynamic rate business datum is write in fifo buffer, then generate read data control signal, dynamic rate business datum is read from fifo buffer, complete access dynamic rate business, this just further ensures and can realize accessing dynamic rate business in OTN network, and has expanded the range of application of OTN optical communication network further.
Reference Figure 10, Figure 10 are the structural representation that the present invention realizes the third execution mode of De-mapping module in the device of dynamic rate service access.
Realize device one embodiment of dynamic rate service access based on the present invention, De-mapping module 20 also comprises:
Mapping cost delete cells 25, for deleting mapping cost.
Extracting mapping cost, and extract according to it dynamic rate business datum mapped in payload section of ODUK further, demapping is carried out to this dynamic rate business datum, and realizing after in dynamic rate service access to OTN optical communication network, the mapping cost that will be used for identifying this dynamic rate business datum by mapping cost delete cells 25 is deleted.
The dynamic rate business datum mapped in the payload section of extracting ODUK, after demapping is carried out to this dynamic rate business datum, delete mapping cost, with facilitate upper once dynamic rate business datum is mapped time generated the mapping cost of mark action, thus it is more simple, convenient to make in OTN network, access dynamic rate business.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. realize a method for dynamic rate service access, it is characterized in that, comprising:
Receive dynamic rate business datum, configure the configuration parameter of described dynamic rate business datum, according to described configuration parameter, described dynamic rate business datum is mapped in ODUk, and form the mapping cost corresponding with described dynamic rate business datum;
When accessing described dynamic rate business, extracting described mapping cost, according to described mapping cost, demapping being carried out to the described dynamic rate business datum in described ODUk;
Wherein, describedly according to configuration parameter, described dynamic rate business datum to be mapped in ODUk, and the step forming the mapping cost corresponding with described dynamic rate business datum comprises:
Obtain described configuration parameter, generate and write data controlling signal, described dynamic rate business datum is write in fifo buffer;
Receive the read signal that described fifo buffer sends, generate read data control signal, read described dynamic rate business datum from described fifo buffer;
Described dynamic rate business datum according to reading produces ODUk frame signal, and described dynamic rate business datum is deposited the payload section to described ODUk;
Form the mapping cost corresponding with described dynamic rate business datum, described mapping cost is deposited the expense position to described ODUk; Wherein, k equals 0/1/2/3.
2. the method realizing dynamic rate service access according to claim 1, is characterized in that, number of timeslots shared by described dynamic rate business of the configuration parameter of described dynamic rate business datum and position.
3. the method realizing dynamic rate service access according to claim 1, is characterized in that, when accessing described dynamic rate business, before the described extraction mapping cost of execution goes forward side by side row relax, also comprises:
According to the described dynamic rate business datum of access, configure the configuration parameter of described dynamic rate business datum.
4. the method realizing dynamic rate service access according to claim 3, is characterized in that, described extraction mapping cost, carries out demapping comprise according to described mapping cost to the described dynamic rate business datum in described ODUk:
Extract described mapping cost from the expense position of described ODUk, extract described dynamic rate business datum from the payload section of described ODUk;
Generate according to described mapping cost and write data controlling signal, described dynamic rate business datum is write in fifo buffer;
Receive the read signal that described fifo buffer sends, generate read data control signal, read described dynamic rate business datum from described fifo buffer, access described dynamic rate business.
5. the method realizing dynamic rate service access according to claim 4, is characterized in that, after execution carries out demapping according to described mapping cost to the described dynamic rate business datum in described ODUk, also comprises:
Delete described mapping cost.
6. realize a device for dynamic rate service access, it is characterized in that, comprising:
Mapping block, for receiving dynamic rate business datum, configure the configuration parameter of described dynamic rate business datum, according to described configuration parameter, described dynamic rate business datum is mapped in ODUk, and form the mapping cost corresponding with described dynamic rate business datum;
De-mapping module, for when accessing described dynamic rate business, extracting described mapping cost, carrying out demapping according to described mapping cost to the described dynamic rate business datum in described ODUk;
Wherein, described mapping block comprises:
Map write data unit, for obtaining described configuration parameter, generating and writing data controlling signal, described dynamic rate business datum is write in fifo buffer;
Map reading data unit, for receiving the read signal that described fifo buffer sends, generating read data control signal, reading described dynamic rate business datum from described fifo buffer;
Map unit, for producing ODUk frame signal according to the described dynamic rate business datum read, and deposits the payload section to described ODUk by described dynamic rate business datum;
Mapping cost forming unit, for the formation of the mapping cost corresponding with described dynamic rate business datum, deposits the expense position to described ODUk by described mapping cost; Wherein, k equals 0/1/2/3.
7. the device realizing dynamic rate service access according to claim 6, is characterized in that, described mapping block also comprises:
Map dispensing unit, for configuring the configuration parameter of dynamic rate business datum, number of timeslots shared by described dynamic rate business of the configuration parameter of described dynamic rate business datum and position.
8. the device realizing dynamic rate service access according to claim 6, is characterized in that, described De-mapping module comprises:
Demapping dispensing unit, for the described dynamic rate business datum according to access, configures the configuration parameter of described dynamic rate business datum, number of timeslots shared by described dynamic rate business of the configuration parameter of described dynamic rate business datum and position.
9. the device realizing dynamic rate service access according to claim 8, is characterized in that, described De-mapping module also comprises:
Extraction unit, extracts described mapping cost for the expense position from described ODUk, extracts described dynamic rate business datum from the payload section of described ODUk;
Demapping write data unit, writing data controlling signal for generating according to described mapping cost, writing in fifo buffer by described dynamic rate business datum;
Demapping reading data unit, for receiving the read signal that described fifo buffer sends, generating read data control signal, reading described dynamic rate business datum, access described dynamic rate business from described fifo buffer.
10. the device realizing dynamic rate service access according to claim 9, is characterized in that, described De-mapping module also comprises:
Mapping cost delete cells, for deleting described mapping cost.
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| CN101651512A (en) * | 2009-09-24 | 2010-02-17 | 中兴通讯股份有限公司 | Method, system and device for realizing transparent transmission of data traffic |
| CN102195864A (en) * | 2010-03-18 | 2011-09-21 | 中兴通讯股份有限公司 | OTN (Optical Transport Network) equipment and bandwidth adjusting method of OTN |
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| CN101651512A (en) * | 2009-09-24 | 2010-02-17 | 中兴通讯股份有限公司 | Method, system and device for realizing transparent transmission of data traffic |
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