CN107210974A - A kind of methods, devices and systems of operation management maintainance expense configuration - Google Patents
A kind of methods, devices and systems of operation management maintainance expense configuration Download PDFInfo
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- CN107210974A CN107210974A CN201580000699.4A CN201580000699A CN107210974A CN 107210974 A CN107210974 A CN 107210974A CN 201580000699 A CN201580000699 A CN 201580000699A CN 107210974 A CN107210974 A CN 107210974A
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Abstract
The embodiment of the invention discloses a kind of method of operation management maintainance OAM expenses configuration, method includes：In transmitting terminal, the business datum from customer side is received, the business datum is mapped in the first sub-carrier signal, the corresponding OAM expenses of the business datum are mapped in the second sub-carrier signal；First sub-carrier signal and second sub-carrier signal are multiplexed into by way of frequency division multiplexing in same wavelet band signal, the wavelet band signal is sent from network side.By above technical scheme, business datum and OAM expenses are mapped in different sub-carrier signals, when trunking needs to modify to multiplex section OAM expenses, it is not necessary to which opto-electronic conversion is carried out to business datum, reduce processing complexity and cost.
Description
The present invention relates to the methods, devices and systems that optical communication field more particularly to a kind of operation management maintainance expense configure.
In transmission net, such as SDH (Synchronous Digital Hierarchy, synchronous digital system) and OTN (Optical Transmission Network optical transport network) network architecture in, generally use the mode replied by cable and connect and be multiplexed.Reply by cable connect during, OAM (Operation Administration and Maintenance, operation management maintainance) Overhead and business datum are multiplexed into the same container for granule.So-called container for granule refers to the transmission unit with certain transmission rate.In the business datum and Overhead of variable grain size, it is multiplexed into high-order container from low order container, is transmitted finally by optical wavelength.Optical wavelength only as the tool transmitted, does not do network management and maintenance processing.
In SDH optical-fiber network, container for granule is synchronous transfer mode, including STM-1, STM-4 etc..Synchronous transfer mode STM-1, STM-4 etc. in the code stream of time domain be provided with 5% be used as overhead byte, for network is managed and maintenance processing.Wherein, overhead byte includes multiplex section overhead and channel section overhead, and business datum code stream and corresponding Overhead code stream are mapped in the same synchronous transfer mode by time-multiplexed mode.
In the prior art, OAM Overhead and business datum are mapped in the same container for granule by time-multiplexed mode, and OAM Overhead occupies branch's time domain expense.If modified processing to OAM Overhead, need to read out all information in container for granule, and obtain the Overhead in time domain.Accordingly, in optical transport network, Overhead and business datum are mapped in the same optical wavelength, if identifying and modifying the Overhead in optical wavelength signal, after needing whole business datum and Overhead carrying out photoelectric conversion, whole container for granule is read, in electrical domain to obtain the Overhead in time domain.Therefore, in processes overhead information, photoelectric conversion is also carried out to business datum, increases additional cost and place
Manage complexity.
Summary of the invention
The problem of in view of this, embodiment of the present invention provides a kind of methods, devices and systems of operation management maintainance expense configuration, can solve in processes overhead information, photoelectric conversion carried out to business datum, increasing additional cost and processing complexity.
First aspect, the embodiment of the invention provides a kind of methods of operation management maintainance OAM expense configuration, include: to receive the business datum from customer side, the business datum is mapped in the first sub-carrier signal, the corresponding OAM expense of the business datum is mapped in the second sub-carrier signal；First sub-carrier signal and second sub-carrier signal are multiplexed into the same wavelet band signal by way of frequency division multiplexing, the wavelet band signal is sent from network side.
Implementation with reference to first aspect, in a first possible implementation of that first aspect, it is described that the corresponding OAM expense of the business datum is mapped in the second sub-carrier signal, specifically include: the OAM expense includes multiplex section OAM expense and channel section OAM expense, and second sub-carrier signal includes two sub-carrier signals；The multiplex section OAM expense is mapped in one of sub-carrier signal in described two sub-carrier signals, the channel section OAM expense is mapped in described two sub-carrier signals in another sub-carrier signal.
With reference to first aspect or first aspect the first possible implementation, in a second possible implementation of that first aspect, before the wavelet band signal is sent from network side, further includes: the wavelet band signal is generated band signals by way of frequency division multiplexing；It is described to send the wavelet band signal from network side, it specifically includes: the band signals is sent from network side.
Second aspect, the embodiment of the invention provides a kind of methods of operation management maintainance OAM expense configuration, it include: to receive the wavelet band signal from network side, it wherein, include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal；The wavelet band signal is demultiplexed
With acquisition first sub-carrier signal sends first sub-carrier signal from customer side.
In conjunction with the implementation of second aspect, in second aspect in the first possible implementation, when second sub-carrier signal needs to be modified, the method also includes: obtaining from the wavelet band signal needs the second sub-carrier signal to be modified, after carrying out photoelectric conversion to second sub-carrier signal that need to be to be modified, the second new sub-carrier signal is generated；The second new sub-carrier signal and first sub-carrier signal are multiplexed into the same new wavelet band signal by way of frequency division multiplexing, the new wavelet band signal is sent from the network side.
In conjunction with second aspect or second aspect the first possible implementation, in second of second aspect possible implementation, the OAM expense includes multiplex section OAM expense and channel section OAM expense, second sub-carrier signal includes two sub-carrier signals, one of sub-carrier signal in described two sub-carrier signals has mapped the multiplex section OAM expense, another sub-carrier signal in described two sub-carrier signals has mapped the channel section OAM expense.
In conjunction with second aspect or second aspect the first to second of any possible implementation, in second aspect in the third possible implementation, it is described need to the second sub-carrier signal to be modified be the sub-carrier signal for having mapped the multiplex section OAM expense.
In conjunction with second aspect or second aspect the first to the third any possible implementation, in the 4th kind of possible implementation of second aspect, it is described the wavelet band signal is demultiplexed after, further includes: obtain and have mapped the sub-carrier signal of the channel section OAM expense；The sub-carrier signal for having mapped the channel section OAM expense is sent from customer side.
The third aspect, the embodiment of the invention provides a kind of devices of operation management maintainance OAM expense configuration, comprising: receiving module, for receiving the wavelet band signal from network side, it wherein, include the first sub-carrier signal and the mapping for having mapped business datum in the wavelet band signal
Second sub-carrier signal of the corresponding OAM expense of the business datum；Demultiplexing module obtains first sub-carrier signal for demultiplexing the wavelet band signal；Sending module, for sending first sub-carrier signal from customer side.
In conjunction with the implementation of the third aspect, in the third aspect in the first possible implementation, the OAM expense includes multiplex section OAM expense and channel section OAM expense, and second sub-carrier signal includes two sub-carrier signals；The mapping block, is specifically used for: the multiplex section OAM expense being mapped in one of sub-carrier signal in described two sub-carrier signals, the channel section OAM expense is mapped in described two sub-carrier signals in another sub-carrier signal.
In conjunction with the third aspect or the third aspect the first possible implementation, in second of the third aspect possible implementation, the Multiplexing module is also used to: the wavelet band signal is generated band signals by way of frequency division multiplexing；The sending module, for sending the band signals from network side.
Fourth aspect, the embodiment of the invention provides a kind of devices of operation management maintainance OAM expense configuration, it include: receiving module, for receiving the wavelet band signal from network side, it wherein, include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal；Demultiplexing module obtains first sub-carrier signal for demultiplexing the wavelet band signal；Sending module, for sending first sub-carrier signal from customer side.
In conjunction with the implementation of fourth aspect, in fourth aspect in the first possible implementation, described device further include: modified module and Multiplexing module, the modified module, for when second sub-carrier signal needs to be modified, obtaining from the wavelet band signal needs the second sub-carrier signal to be modified, after carrying out photoelectric conversion to second sub-carrier signal that need to be to be modified, generates the second new sub-carrier signal；The Multiplexing module, for the second new sub-carrier signal and first sub-carrier signal to be multiplexed into the same new wavelet band signal by way of frequency division multiplexing；The sending module, for sending the new wavelet band signal from the network side.
In conjunction with fourth aspect or fourth aspect the first possible implementation, in second of fourth aspect possible implementation, the OAM expense includes multiplex section OAM expense and channel section OAM expense, second sub-carrier signal includes two sub-carrier signals, one of sub-carrier signal in described two sub-carrier signals has mapped the multiplex section OAM expense, another sub-carrier signal in described two sub-carrier signals has mapped the channel section OAM expense.
In conjunction with fourth aspect or fourth aspect the first to second of any possible implementation, in fourth aspect in the third possible implementation, it is described need to the second sub-carrier signal to be modified be the sub-carrier signal for having mapped the multiplex section OAM expense.
In conjunction with fourth aspect or fourth aspect the first to the third any possible implementation, in the 4th kind of possible implementation of fourth aspect, the demultiplexing module is also used to: obtaining the sub-carrier signal for having mapped the channel section OAM expense；The sending module, for sending the sub-carrier signal for having mapped the channel section OAM expense from customer side.
5th aspect, the embodiment of the invention provides a kind of systems of operation management maintainance OAM expense configuration, comprising: the device as described in the third aspect and any possible implementation of the third aspect and the device as described in fourth aspect and any possible implementation of fourth aspect.
The technical solution provided according to embodiments of the present invention, in transmitting terminal, receive the business datum from customer side, business datum is mapped in the first sub-carrier signal, the corresponding OAM expense of business datum is mapped in the second sub-carrier signal, first sub-carrier signal and the second sub-carrier signal are mapped in the same wavelet band signal by way of frequency division multiplexing, wavelet band signal is sent from network side.The technical solution provided through the embodiment of the present invention, business datum and OAM expense are mapped in different sub-carrier signals, when trunking needs to modify to multiplex section OAM expense, does not need to carry out photoelectric conversion to business datum, reduce processing complexity and cost.
In order to illustrate more clearly of the embodiment of the present invention or technical solution in the prior art, attached drawing used when describing background technique and embodiment will be briefly described below.Apparently, it is only a part of the embodiments of the present invention described in following accompanying drawings, for those of ordinary skill in the art, without creative efforts, other attached drawings or embodiment can also be obtained with description according to these attached drawings, and the present invention is directed to cover attached drawing derived from all these or embodiment.
Fig. 1 is a kind of structural schematic diagram of Optical Add/Drop Multiplexer provided in an embodiment of the present invention；
Fig. 2 is a kind of exemplary flow chart of the method for OAM expense configuration provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of multiplex section OAM expense producing method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of channel section OAM expense producing method provided in an embodiment of the present invention；
Fig. 5 is a kind of exemplary flow chart of the aspect of OAM expense configuration provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram of wavelet band signal break-through provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram of a kind of wavelet band signal upper ripple provided in an embodiment of the present invention, lower wave；
Fig. 8 is the schematic diagram that multiplex section OAM expense is modified in a kind of wavelet band signal provided in an embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of the mode of multiplex section OAM expense separation provided in an embodiment of the present invention；
Figure 10 is a kind of structural schematic diagram of the device of OAM expense configuration provided in an embodiment of the present invention；
Figure 11 is a kind of structural schematic diagram of the device of OAM expense configuration provided in an embodiment of the present invention.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of a kind of OADM provided in an embodiment of the present invention (Optical Add-Drop Multiplexer, optical add/drop multiplexer) equipment 100.As shown in Figure 1, OADM equipment 100 includes subcarrier multiplex module 101, subcarrier demultiplexing module 102, wavelet band sending module 103, the wavelet band unit modules such as receiving module 104, the first tunable optic filter 105, the second tunable optic filter 106, OAM expense module 107.Wherein, subcarrier multiplex module 101 and subcarrier demultiplexing module 102 can be handled electric signal, can also be handled optical signal, are illustrated for handling electric signal in the embodiment of the present invention.
In specific implementation process, OADM equipment 100 carries out dense wave division multipurpose to business datum, i.e., business datum is mapped in multiple sub-carrier signals, multiple sub-carrier signals are multiplexed into a sub- band signals by way of frequency division multiplexing.In optical-fibre channel, business datum is carried in wavelet band signal and is transmitted.Specifically, during from customer side to network side, the business datum of variable grain size, such as GE (Gibit Ethernet, gigabit Ethernet) business, 10GE business be mapped in multiple sub-carrier signals in subcarrier multiplex module 101 by way of frequency division multiplexing, form subcarrier baseband signal.Wavelet carries out electro-optical modulation with the subcarrier baseband signal that 103 sub-carrier Multiplexing module of sending module generates, and is multiplexed into a sub- band signals by way of frequency division multiplexing, and multiplexed wavelet band signal is carried out upper ripple.The wavelet band signal of upper ripple pass through the first tunable optic filter 105 after and other wavelet band signals multiplexing transmission is carried out in optical-fibre channel.During from network side to customer side, for the wavelet band signal in optical-fibre channel by carrying out lower wave after the second tunable optic filter 106, the wavelet band signal of lower wave can be wherein one or more.Do not descend wave wavelet band signal can directly break-through to network side outlet.After wavelet receives the wavelet band signal of lower wave with receiving module 104, to what is received
Wavelet band signal is demodulated, and subcarrier baseband signal is obtained.Subcarrier baseband signal is demultiplexed by subcarrier demultiplexing module 102, obtains the corresponding multiple sub-carrier signals of business datum, is exported from customer side.
During business data transmission, needs to configure OAM expense and transmission channel is managed and is safeguarded.For example, the OAM Overhead of configuration is for optical power monitoring, fault detection and alarm, error monitoring, Joint failure alarm etc..OAM expense includes multiplex section OAM expense and channel section OAM expense.Normally, multiplex section OAM expense configures in modulation of source with node, and channel section OAM expense generates on the road light modulation Zhong Sui.Multiplex section OAM expense can change during transmission, therefore the processing that can modify.Channel section OAM expense is transmitted as information end to end, does not need processing of modifying during transmission.Each subcarrier can carry an administration overhead, the transmission performance in monitoring business channel；Each wavelet band can carry an administration overhead, monitor the channel capacity of optical multiplexing section, establish link for the end-to-end light connects of business.In the embodiment of the present invention, in OADM equipment 100, OAM expense module 107 can be used for generating OAM Overhead, identification OAM Overhead, modification OAM Overhead etc..For example, the specific implementation process for generating OAM Overhead is as follows: during sub-carrier signal carries out frequency division multiplexing generation wavelet band signal, OAM expense being mapped in independent sub-carrier signal by OAM expense module 107.The corresponding sub-carrier signal of OAM expense that OAM expense module 107 generates can be mapped in the same wavelet band signal by wavelet band sending module 103 sub-carrier signal corresponding with business datum.Specifically, multiplex section OAM expense and channel section OAM expense may map in different, independent sub-carrier signal.The specific implementation process of identification and modification OAM Overhead is as follows: during wavelet band signal is from 106 break-through of the second tunable optic filter to the first tunable optic filter 105, when handling if necessary to modify to the multiplex section OAM expense in sub- band signals, the corresponding sub-carrier signal of multiplex section OAM expense can be isolated from wavelet band signal by the second tunable optic filter 106.Photoelectric conversion, processing of modifying are carried out to the corresponding sub-carrier signal of multiplex section OAM expense.Modification treated multiplex section OAM expense forms new sub-carrier signal after carrying out photoelectric conversion, is multiplexed into the corresponding original of multiplex section OAM expense
In some wavelet band signals.In the embodiment of the present invention, when trunking, which needs to modify to multiplex section OAM expense, to be handled, photoelectric conversion only can be carried out to multiplex section OAM expense, not need to carry out photoelectric conversion to business datum and channel section OAM expense, reduce processing complexity.
Fig. 2 is a kind of exemplary flow chart of the method for OAM expense configuration provided in an embodiment of the present invention.As shown in Fig. 2, the configuration of OAM expense can execute on optical transmission device, such as OADM equipment shown in FIG. 1.Specifically, OADM equipment can be the sending device in network, can also be receiving device or trunking.Specific implementation process includes the following steps:
S201: the business datum from customer side is received, the business datum is mapped in the first sub-carrier signal, the corresponding OAM expense of the business datum is mapped in the second sub-carrier signal.
Specifically, the business datum of customer side can be the business datums such as GE, 10GE.The business datum of customer side may map in multiple sub-carrier signals, therefore, may include multiple first sub-carrier signals.OAM expense may include multiplex section OAM expense and channel section OAM expense, wherein multiplex section OAM expense and channel section OAM expense are mapped in different, independent sub-carrier signal.Therefore, the second sub-carrier signal may include two different, independent sub-carrier signals, respectively multiplex section OAM expense sub-carrier signal and channel section OAM expense sub-carrier signal.
Specifically, the mode that multiplex section OAM expense generates is as shown in Figure 3.Laser light source can be divided into two parts, and a part generates corresponding first sub-carrier signal of business datum, and another part generates multiplex section OAM expense sub-carrier signal.First sub-carrier signal can be intensive sub-carrier signal, have certain frequency, such as 25Ghz.First sub-carrier signal and multiplex section OAM expense sub-carrier signal are loaded by different modulators.Specifically, business datum is loaded in the first light source of laser by the first modulator, forms the first sub-carrier signal.Multiplex section OAM expense is loaded in the second light source of laser by the second modulator, forms multiplex section OAM expense sub-carrier signal.First sub-carrier signal and multiplex section OAM expense sub-carrier signal can be multiplexed by modes such as frequency division multiplexings, form wavelet band signal.Optionally,
Business datum can pass through the first modulator with channel section OAM expense together and be loaded into different sub-carrier signals.
The mode that channel section OAM expense generates is as shown in Figure 4.Channel section OAM expense may include service synchronization character, business information and administration overhead, error detection information and FEC information etc..Specifically, the serial bit stream of business datum generates the synchronous head of channel section OAM expense by bit first in first out module, as service synchronization character.After the preset business information of device systems and administration overhead are inserted into service synchronization character.Business datum and business information, administration overhead are passed through into BIP (Bit Interleave Parity, bit interleaved parity) calculate generate error detection information and FEC (Forward Error Correction, forward error correction) information etc. be inserted into channel section OAM expense.Business datum and channel section OAM expense are mapped in different, independent sub-carrier signal, are multiplexed into a sub- band signals by way of frequency division multiplexing.
S202: first sub-carrier signal and second sub-carrier signal are multiplexed into the same wavelet band signal by way of frequency division multiplexing, and the wavelet band signal is sent from network side.
Specifically, the first sub-carrier signal and the second sub-carrier signal can be different sub-carrier signals, be mapped in the same wavelet band signal by way of frequency division multiplexing.In specific implementation process, multiple sub-carrier signals generate wavelet band signal by way of frequency division multiplexing, and multiple wavelet band signals generate band signals by way of frequency division multiplexing.Band signals have the frequency interval of WDM (Wavelength-division Multiplexing, wavelength-division multiplex) system.It is made of in each band signals multiple wavelet band signals, the data-signal that wavelet band signal load bearing grain more refines；It is made of in each wavelet band signal multiple sub-carrier signals, the data-signal that sub-carrier signal carrying more particle more refines.
In the present embodiment, in transmitting terminal, receive the business datum from customer side, business datum is mapped in the first sub-carrier signal, the corresponding OAM expense of business datum is mapped in the second sub-carrier signal, first sub-carrier signal and the second sub-carrier signal are mapped in the same wavelet band signal by way of frequency division multiplexing, wavelet band signal is sent from network side.By the way that business datum and OAM expense to be mapped in different subcarriers, when trunking needs
When modifying to multiplex section OAM expense, does not need to carry out photoelectric conversion to business datum, reduce processing complexity and cost.
Fig. 5 is a kind of exemplary flow chart of the method for OAM expense configuration provided in an embodiment of the present invention.As shown in figure 5, the configuration of OAM expense can execute on optical transmission device, such as OADM equipment shown in FIG. 1.Specific implementation process includes the following steps:
S501: the wavelet band signal from network side is received, wherein include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal.
Specifically, multiple wavelet band signals be can receive, may include multiple first sub-carrier signals and multiple second sub-carrier signals in each wavelet band signal.Business datum and the corresponding OAM Overhead of business datum are carried by independent sub-carrier signal respectively in wavelet band signal.For example, carrying business datum by the first sub-carrier signal, the corresponding OAM Overhead of the business datum is carried by the second sub-carrier signal.Wherein, OAM Overhead includes multiplex section OAM expense and channel section OAM expense, is carried respectively by the second different sub-carrier signals.For example, OAM expense can be carried by two independent sub-carrier signals, wherein multiplex section OAM expense is carried by multiplex section OAM expense sub-carrier signal, and channel section OAM expense is carried by channel section OAM expense sub-carrier signal.It include four sub-carrier signals in each wavelet band signal, but the quantity of wavelet band signal and sub-carrier signal is not limited only to this as shown in fig. 6, showing three sub- band signals in figure.Wherein, a1, a2, a3 are the corresponding sub-carrier signal of channel section OAM expense, and d1, d2, d3 are the corresponding sub-carrier signal of multiplex section OAM expense, remaining is the corresponding sub-carrier signal of business datum.Wherein, multiplex section OAM expense during transmission, can modify.Channel section OAM expense is transmitted as information end to end, does not need to modify in transmission process.When d1, d2, d3 do not need modification, all sub-carrier signals carry out break-through between the first tunable filter and the second tunable filter, directly send from network side.When d1, d2, d3 need to modify, reference can be made to the execution step of embodiment shown in Fig. 8.
S502: the wavelet band signal is demultiplexed, and obtains first sub-carrier signal,
First sub-carrier signal is sent from customer side.
Specifically, the wavelet band signal received from network side can also carry out lower wave in any one OADM equipment.Optionally, new wavelet band signal can also carry out upper ripple by any one OADM equipment.The purpose of lower wave is in order to which the business datum for carrying wavelet band signal is sent on customer equipment, and the purpose of upper ripple is that the business datum in order to generate customer equipment is sent in network by wavelet band signal and transmits.Upper ripple, lower wave container for granule can be only illustrated by taking wavelet band signal as an example in the embodiment of the present invention using band signals or wavelet band signal as unit.As shown in fig. 7, wavelet band signal a2b2c2d2 needs lower wave.Specifically, the wavelet band signal of lower wave can be demultiplexed, the first sub-carrier signal for carrying business datum is sent to customer equipment, alternatively, customer equipment can also be sent to the second sub-carrier signal for including in wavelet band signal.Optionally, before lower wave, it sub-carrier signal d2 corresponding to multiplex section OAM expense can be separated by the way of as shown in Figure 9, corresponding first sub-carrier signal of business datum and the corresponding sub-carrier signal of channel section OAM expense are sent to customer equipment.The process of upper ripple, which can be respectively adopted, is mapped to multiplex section OAM expense, channel section OAM expense and business datum in different sub-carrier signals such as Fig. 3, mode as shown in Figure 4, and is multiplexed into the same wavelet band signal.Wherein, the corresponding sub-carrier signal of the business datum of upper ripple can sub-carrier signal corresponding with the business datum of lower wave it is identical or different.
Optionally, the multiplex section OAM expense in OAM expense needs to carry out expense modification in transmission process.Specifically, expense modification can be carried out on OADM trunking.As shown in figure 8, the corresponding sub-carrier signal (d1, d2, d3) of multiplex section OAM expense is isolated from wavelet band signal by the first tunable optic filter in OADM trunking.For example, isolating d1 from wavelet band signal a1b1c1d1, d2 is isolated from wavelet band signal a2b2c2d2, isolates d3 from wavelet band signal a3b3c3d3.After carrying out photoelectric conversion to the corresponding sub-carrier signal of multiplex section OAM expense, expense modification is carried out.Electro-optic conversion is carried out to modified sub-carrier signal, is multiplexed modified sub-carrier signal (D1, D2, D3) and corresponding first sub-carrier signal of business datum, the corresponding sub-carrier signal of channel section OAM expense etc. by the second tunable optic filter.For example, D1 and a1, b1, c1 are multiplexed into the same wavelet band
In signal, D2 and a2, b2, c2 are multiplexed into the same wavelet band signal, D3 and a3, b3, c3 are multiplexed into the same wavelet band signal.After multiplex section OAM expense corresponding subcarrier d1, d2, d3 is modified, it is changed to D1, D2, D3, corresponds to sub-carrier signal with original business datum again, the corresponding sub-carrier signal of channel section OAM expense is multiplexed, forms new wavelet band signal.
Before multiplex section OAM expense is modified, multiplex section OAM expense can be separated.Specifically, the specific implementation process that the corresponding sub-carrier signal of multiplex section OAM expense is isolated from wavelet band signal is as shown in Figure 9.It may include corresponding first sub-carrier signal of business datum, the corresponding sub-carrier signal of channel section OAM expense and the corresponding sub-carrier signal of multiplex section OAM expense in wavelet band signal.Wavelet band signal is separated by way of passive filtering, such as through tunable optic filter.Wherein, the corresponding sub-carrier signal of channel section OAM expense and the first sub-carrier signal are separated together, and the corresponding sub-carrier signal of multiplex section OAM expense is individually separated.Photoelectric Detection is carried out to the corresponding sub-carrier signal of multiplex section OAM expense and identifies corresponding information, in order to isolate multiplex section OAM Overhead from wavelet band signal.
In the present embodiment, in receiving end, the wavelet band signal from network side is received, wherein include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with business datum is had mapped of business datum in wavelet band signal；Wavelet band signal is demultiplexed, the first sub-carrier signal is obtained, the first sub-carrier signal is sent from customer side.First subcarrier and the second subcarrier have mapped business datum and OAM expense respectively, when trunking needs to modify to multiplex section OAM expense, do not need to carry out photoelectric conversion to business datum, reduce processing complexity and cost.
Figure 10 is a kind of structural schematic diagram of the device of OAM expense configuration provided in an embodiment of the present invention.Specifically, which can be optical transmission device, such as OADM equipment.Device shown in device and Figure 11 shown in Fig. 10 can be set in the same optical transmission device, also can be set in different optical transmission devices.The device includes: receiving module 1001, mapping block 1002, Multiplexing module 1003 and sending module 1004.Device shown in Fig. 10 can execute figure
The method and step that OAM expense configures in 2 embodiments.
Wherein, receiving module 1001, for receiving the business datum from customer side.
The corresponding OAM expense of the business datum is mapped in the second sub-carrier signal by mapping block 1002 for the business datum to be mapped in the first sub-carrier signal.Specifically, mapping block 1002 is specifically used for: the multiplex section OAM expense being mapped in one of sub-carrier signal in described two sub-carrier signals, the channel section OAM expense is mapped in described two sub-carrier signals in another sub-carrier signal.
Multiplexing module 1003, for first sub-carrier signal and second sub-carrier signal to be multiplexed into the same wavelet band signal by way of frequency division multiplexing.
Sending module 1004, for sending the wavelet band signal from network side.
Wherein, Multiplexing module 1003 are also used to: the wavelet band signal is generated band signals by way of frequency division multiplexing；Sending module 1004, for sending the band signals from network side.
In the present embodiment, receiving module receives the business datum from customer side, business datum is mapped in the first sub-carrier signal by mapping block, the corresponding OAM expense of business datum is mapped in the second sub-carrier signal, first sub-carrier signal and the second sub-carrier signal are mapped in the same wavelet band signal by Multiplexing module by way of frequency division multiplexing, and sending module sends wavelet band signal from network side.By the way that business datum and OAM expense to be mapped in different subcarriers, when trunking needs to modify to multiplex section OAM expense, does not need to carry out photoelectric conversion to business datum, reduce processing complexity and cost.
Figure 11 is a kind of structural schematic diagram of the device of OAM expense configuration provided in an embodiment of the present invention.Specifically, which can be optical transmission device, such as OADM equipment.Device shown in Figure 11 and device shown in Fig. 10 can be set in the same optical transmission device, also can be set in different optical transmission devices.The device includes: receiving module 1101, demultiplexing module 1102 and sending module 1103.Device shown in Figure 11 can execute the method and step that OAM expense configures in Fig. 5 embodiment.
Wherein, receiving module 1101, for receiving the wavelet band signal from network side, wherein
It include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal.Specifically, the OAM expense includes multiplex section OAM expense and channel section OAM expense, second sub-carrier signal includes two sub-carrier signals, one of sub-carrier signal in described two sub-carrier signals has mapped the multiplex section OAM expense, another sub-carrier signal in described two sub-carrier signals has mapped the channel section OAM expense.
Demultiplexing module 1102 obtains first sub-carrier signal for demultiplexing the wavelet band signal.
Sending module 1103, for sending first sub-carrier signal from customer side.Optionally, demultiplexing module 1102 are also used to: obtaining the sub-carrier signal for having mapped the channel section OAM expense；Sending module 1103, for sending the sub-carrier signal for having mapped the channel section OAM expense from customer side.
Specifically, which further includes modified module and Multiplexing module.Wherein, modified module is used for when second sub-carrier signal needs to be modified, obtaining from the wavelet band signal needs the second sub-carrier signal to be modified, after carrying out photoelectric conversion to second sub-carrier signal that need to be to be modified, generates the second new sub-carrier signal；Multiplexing module, for the second new sub-carrier signal and first sub-carrier signal to be multiplexed into the same new wavelet band signal by way of frequency division multiplexing；Sending module 1103, for sending the new wavelet band signal from the network side.The need the second sub-carrier signal to be modified can be the sub-carrier signal for having mapped the multiplex section OAM expense.
In the present embodiment, receiving module receives the wavelet band signal from network side, wherein includes the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with business datum is had mapped of business datum in wavelet band signal；Demultiplexing module demultiplexes wavelet band signal, obtains the first sub-carrier signal, and sending module sends the first sub-carrier signal from customer side.First subcarrier and the second subcarrier have mapped business datum and OAM expense respectively, when trunking needs to modify to multiplex section OAM expense, do not need to industry
Data of being engaged in carry out photoelectric conversion, reduce processing complexity and cost.
It will be recognized by those of ordinary skill in the art that the possibility implementation of various aspects of the invention or various aspects can be embodied as system, method or computer program product.Therefore, the possibility implementation of each aspect of the present invention or various aspects can use complete hardware embodiment, complete software embodiment (including firmware, resident software etc.), perhaps the form of the embodiment of integration software and hardware aspect collectively referred to herein as " circuit ", " module " or " system ".In addition, the possibility implementation of each aspect of the present invention or various aspects can use the form of computer program product, computer program product refers to the computer readable program code of storage in computer-readable medium.
Computer-readable medium can be computer-readable signal media or computer readable storage medium.Computer readable storage medium is including but not limited to electronics, magnetism, optics, electromagnetism, infrared or semiconductor system, equipment or device, perhaps above-mentioned any appropriately combined such as random access memory (RAM), read-only memory (ROM), Erasable Programmable Read Only Memory EPROM (EPROM or flash memory), optical fiber, portable read-only memory (CD-ROM).
Processor in computer reads the computer readable program code of storage in computer-readable medium, enables a processor to execute function action specified in the combination of each step or each step in flow charts；Generate the device for implementing defined function action in each block of the block diagram, or a combination of blocks.
Computer readable program code can execute on the user's computer completely, part executes on the user's computer, as individual software package, part on the user's computer and part on the remote computer, or execute on a remote computer or server completely.It is also noted that in some alternative embodiments, each piece of function of indicating may not be occurred by the sequence indicated in figure in each step or block diagram in flow charts.For example, depending on related function, two steps or two blocks shown in succession may be actually executed substantially concurrently or these blocks may be sometimes performed with reverse order.
Those of ordinary skill in the art may be aware that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, can with electronic hardware or computer software and
The combination of electronic hardware is realized.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.
The foregoing is merely several embodiments of the present invention, those skilled in the art can carry out various changes or modifications without departing from the spirit and scope of the present invention to the present invention according to disclosed in application documents.
Claims (17)
- A kind of method of operation management maintainance OAM expense configuration, which is characterized in that the described method includes:The business datum from customer side is received, the business datum is mapped in the first sub-carrier signal, the corresponding OAM expense of the business datum is mapped in the second sub-carrier signal；First sub-carrier signal and second sub-carrier signal are multiplexed into the same wavelet band signal by way of frequency division multiplexing, the wavelet band signal is sent from network side.
- The method as described in claim 1, which is characterized in that it is described that the corresponding OAM expense of the business datum is mapped in the second sub-carrier signal, it specifically includes:The OAM expense includes multiplex section OAM expense and channel section OAM expense, and second sub-carrier signal includes two sub-carrier signals；The multiplex section OAM expense is mapped in one of sub-carrier signal in described two sub-carrier signals, the channel section OAM expense is mapped in described two sub-carrier signals in another sub-carrier signal.
- It is method according to claim 1 or 2, which is characterized in that before the wavelet band signal is sent from network side, further includes:The wavelet band signal is generated into band signals by way of frequency division multiplexing；It is described to send the wavelet band signal from network side, it specifically includes:The band signals are sent from network side.
- A kind of method of operation management maintainance OAM expense configuration, which is characterized in that the described method includes:Receive the wavelet band signal from network side, wherein include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal；The wavelet band signal is demultiplexed, first sub-carrier signal is obtained, by institute The first sub-carrier signal is stated to send from customer side.
- Method as claimed in claim 4, which is characterized in that when second sub-carrier signal needs to be modified, the method also includes:Obtaining from the wavelet band signal needs the second sub-carrier signal to be modified, after carrying out photoelectric conversion to second sub-carrier signal that need to be to be modified, generates the second new sub-carrier signal；The second new sub-carrier signal and first sub-carrier signal are multiplexed into the same new wavelet band signal by way of frequency division multiplexing, the new wavelet band signal is sent from the network side.
- Method as described in claim 4 or 5, it is characterized in that, the OAM expense includes multiplex section OAM expense and channel section OAM expense, second sub-carrier signal includes two sub-carrier signals, one of sub-carrier signal in described two sub-carrier signals has mapped the multiplex section OAM expense, another sub-carrier signal in described two sub-carrier signals has mapped the channel section OAM expense.
- Method as claimed in claim 5, which is characterized in that the need the second sub-carrier signal to be modified is the sub-carrier signal for having mapped the multiplex section OAM expense.
- Method as claimed in claim 6, which is characterized in that it is described the wavelet band signal is demultiplexed after, further includes:Obtain the sub-carrier signal for having mapped the channel section OAM expense；The sub-carrier signal for having mapped the channel section OAM expense is sent from customer side.
- The device of a kind of operation management maintainance OAM expense configuration, which is characterized in that described device includes:Receiving module, for receiving the business datum from customer side；Mapping block, for the business datum to be mapped in the first sub-carrier signal, by institute The corresponding OAM expense of business datum is stated to be mapped in the second sub-carrier signal；Multiplexing module, for first sub-carrier signal and second sub-carrier signal to be multiplexed into the same wavelet band signal by way of frequency division multiplexing；Sending module, for sending the wavelet band signal from network side.
- Device as claimed in claim 9, which is characterized in that the OAM expense includes multiplex section OAM expense and channel section OAM expense, and second sub-carrier signal includes two sub-carrier signals；The mapping block, is specifically used for: the multiplex section OAM expense being mapped in one of sub-carrier signal in described two sub-carrier signals, the channel section OAM expense is mapped in described two sub-carrier signals in another sub-carrier signal.
- Device as described in claim 9 or 10, which is characterized in that the Multiplexing module is also used to: the wavelet band signal is generated into band signals by way of frequency division multiplexing；The sending module, for sending the band signals from network side.
- The device of a kind of operation management maintainance OAM expense configuration, which is characterized in that described device includes:Receiving module, for receiving the wavelet band signal from network side, wherein include the second sub-carrier signal for having mapped the first sub-carrier signal OAM expense corresponding with the business datum is had mapped of business datum in the wavelet band signal；Demultiplexing module obtains first sub-carrier signal for demultiplexing the wavelet band signal；Sending module, for sending first sub-carrier signal from customer side.
- Device as claimed in claim 12, which is characterized in that described device further include: modified module and Multiplexing module,The modified module, for when second sub-carrier signal needs to be modified, obtaining from the wavelet band signal needs the second sub-carrier signal to be modified, after carrying out photoelectric conversion to second sub-carrier signal that need to be to be modified, generates the second new sub-carrier signal；The Multiplexing module, for carrying the second new sub-carrier signal and first son Wave signal is multiplexed into the same new wavelet band signal by way of frequency division multiplexing；The sending module, for sending the new wavelet band signal from the network side.
- Device as described in claim 12 or 13, it is characterized in that, the OAM expense includes multiplex section OAM expense and channel section OAM expense, second sub-carrier signal includes two sub-carrier signals, one of sub-carrier signal in described two sub-carrier signals has mapped the multiplex section OAM expense, another sub-carrier signal in described two sub-carrier signals has mapped the channel section OAM expense.
- Device as claimed in claim 13, which is characterized in that the need the second sub-carrier signal to be modified is the sub-carrier signal for having mapped the multiplex section OAM expense.
- Device as claimed in claim 14, which is characterized in that the demultiplexing module is also used to: the sub-carrier signal for having mapped the channel section OAM expense is obtained；The sending module, for sending the sub-carrier signal for having mapped the channel section OAM expense from customer side.
- A kind of system of operation management maintainance OAM expense configuration, which is characterized in that the system comprises: the device of the OAM expense configuration as described in claim 9-11 is any and the device of the OAM expense configuration as described in claim 12-16 is any.
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| PCT/CN2015/092695 WO2017066996A1 (en) | 2015-10-23 | 2015-10-23 | Operation administration and maintenance overhead configuration method, device, and system |
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| CN112601142A (en) * | 2021-03-01 | 2021-04-02 | 深圳市迅特通信技术股份有限公司 | Processing circuit of OAM signal in optical module receiving end and optical module |
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| WO2017066996A1 (en) | 2017-04-27 |
| CN107210974B (en) | 2020-04-14 |
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