CN105792026A - Control method of optical line terminal, optical line terminal and optical line system - Google Patents
Control method of optical line terminal, optical line terminal and optical line system Download PDFInfo
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- CN105792026A CN105792026A CN201410805781.1A CN201410805781A CN105792026A CN 105792026 A CN105792026 A CN 105792026A CN 201410805781 A CN201410805781 A CN 201410805781A CN 105792026 A CN105792026 A CN 105792026A
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Abstract
The invention discloses a control method of an optical line terminal, the optical line terminal and an optical line system. The optical line terminal comprises a processor and optical line terminal basic units. The optical line terminal basic units have two or more different working modes. The working modes comprise protocols and rates when the optical line terminal basic units process data; wherein the processor is used for determining the working modes of the optical line terminal basic units and controlling the optical line terminal basic units to process the data in the determined working modes; and the optical line terminal basic units are used for working under the control of the processor. Through application of the method, the terminal and the system, through selecting different working modes, the demands for the optical line terminal in different scenes can be satisfied, and the optical line terminal provided by the invention has better compatibility.
Description
Technical field
The present invention relates to communication technical field, particularly the control method of a kind of optical line terminal, optical line terminal and optical link system.
Background technology
In NG-PON2 (next-generation passive optical network standard) agreement, different according to application scenarios, optical link system is divided into the network of point-to-point (PtP) pattern and point-to-multipoint (PtMP) pattern, the OLT connecting heterogeneous networks needs to support different agreements and data rate, as supported the OLT of 2.5/10Gbps speed under point-to-point (PtP) pattern, support the OLT of 2.5/10Gbps speed under point-to-multipoint (PtMP) pattern；In actual applications, common carrier needs to arrange the OLT of 2.5/10Gbps speed under point-to-point (PtP) pattern between base station and optical fiber, arrange between optical fiber and user and support the OLT of 2.5/10Gbps speed under point-to-multipoint (PtMP) pattern, common carrier needs to purchase different types of OLT, and when common carrier improves message transmission rate, being accomplished by changing OLT device, OLT compatibility is relatively low.
Therefore, how to provide a kind of optical line terminal OLT that can improve compatibility, be those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
The invention provides the control method of a kind of optical line terminal, optical line terminal and optical link system, optical line terminal compatibility is high.
The invention provides the control method of a kind of optical line terminal, in one embodiment, optical line terminal includes optical line terminal elementary cell, optical line terminal elementary cell possesses two and mode of operations different above, mode of operation include optical line terminal elementary cell process data time agreement and speed；This control method comprises determining that the mode of operation of optical line terminal elementary cell；Control optical line terminal elementary cell and process data with its mode of operation determined.
Further, the step of the mode of operation of the determination optical line terminal elementary cell in above-described embodiment includes: determine mode of operation according to the application scenarios of optical line terminal, or, determine mode of operation according to user operation.
Further, optical line terminal elementary cell in above-described embodiment includes the light transmitting element for converting electrical signals to optical signal, and light transmitting element includes supporting different passive optical network protocol and/or the optical-fiber network protocol module of speed, parallel serial conversion module and optical transmitter；The step that described control described optical line terminal elementary cell processes data with its mode of operation determined includes: arranges described optical-fiber network protocol module according to the agreement in described mode of operation and speed, arranges the operating rate of described parallel-serial conversion main frame and described optical transmitter according to the speed in described mode of operation.
Further, optical line terminal elementary cell in above-described embodiment includes the light receiving unit for converting optical signals to the signal of telecommunication, and light receiving unit includes optical receiver, serioparallel exchange and clock data recovery module and supports the optical-fiber network protocol module of different passive optical network protocol and/or speed；Control described optical line terminal elementary cell to include with the step of its mode of operation determined process data: arrange described optical receiver and the operating rate of described serioparallel exchange and clock data recovery module according to the speed in described mode of operation, arrange described optical-fiber network protocol module according to the agreement in described mode of operation and speed.
The invention provides a kind of optical line terminal, in one embodiment, optical line terminal includes processor and optical line terminal elementary cell, optical line terminal elementary cell possesses two and mode of operations different above, mode of operation include optical line terminal elementary cell process data time agreement and speed；Wherein, processor, for determining the mode of operation of optical line terminal elementary cell, controls optical line terminal elementary cell and processes data with its mode of operation determined；Optical line terminal elementary cell is for working under the control of a processor.
Further, the processor in above-described embodiment specifically for determining mode of operation according to the application scenarios of optical line terminal, or, determine mode of operation according to user operation.
Further, the optical line terminal in above-described embodiment also includes clock generator, and clock generator is for providing system clock for optical line terminal elementary cell under the control of a processor.
Further, optical line terminal in above-described embodiment, it is characterized in that, optical line terminal includes the optical line terminal elementary cell of two or more numbers, and processor is additionally operable to the optical line terminal elementary cell controlling two or more numbers and processes data with its mode of operation each determined.
Corresponding, present invention also offers a kind of optical link system, it includes optical line terminal provided by the invention.
Beneficial effects of the present invention:
In scheme provided by the invention, optical line terminal includes the optical line terminal elementary cell supporting different working modes, when practical application, running parameter according to optical line terminal is dynamically determined the mode of operation of optical line terminal elementary cell, thus can need the demand to optical line terminal running parameter under satisfied different scene so that optical line terminal provided by the invention possesses better compatibility compared with the existing optical line terminal only supporting AD HOC.
Accompanying drawing explanation
The flow chart of the control method of the optical line terminal that Fig. 1 provides for first embodiment of the invention；
The structural representation of the optical line terminal that Fig. 2 provides for second embodiment of the invention；
The connection diagram of the optical link system that Fig. 3 provides for third embodiment of the invention；
Fig. 4 is the structural representation of the optical line terminal in third embodiment of the invention；
Fig. 5 is the structural representation of the optical line terminal elementary cell in third embodiment of the invention.
Detailed description of the invention
Now in conjunction with the mode of accompanying drawing the present invention made by detailed description of the invention and further annotate explanation.
Optical line terminal often uses different parameters under difference installation/application scenarios, optical line terminal elementary cell involved in the present invention possesses two and mode of operations different above, mode of operation include optical line terminal elementary cell process data time agreement and speed, agreement is including, but not limited to Data Transport Protocols such as point-to-point (PtP) pattern and point-to-multipoints (PtMP), and speed is including, but not limited to message transmission rates such as 2.5Gbps, 10Gbps, 0-10Gbps.
First embodiment:
The flow chart of the control method of the optical line terminal that Fig. 1 provides for first embodiment of the invention, as shown in Figure 1, in the present embodiment, the control method of optical line terminal provided by the invention comprises the following steps:
S101: determine the mode of operation of optical line terminal elementary cell；
This step simple selection exactly is determined, repeats no more；
S102: control optical line terminal elementary cell and process data with its mode of operation determined.
In certain embodiments, step S101 in embodiment illustrated in fig. 1 includes: at optical line terminal according to front, application scenarios according to optical line terminal determines mode of operation, or, at optical line terminal according to rear, according to user operation, operate as operator issues selection order etc. by webmaster, it is determined that mode of operation.There is provided an interactive interface for common carrier, thus so that common carrier is arranged as required to the application scenarios (installation site and message transmission rate such as this OLT) of optical line terminal, and then mode of operation can be determined according to application scenarios.
nullIn certain embodiments，Step S101 in embodiment illustrated in fig. 1 can also include: handled by optical line terminal up direction and/or down direction, the data form of data determines mode of operation，Concrete can be that optical line terminal is not provided with running parameter in a pre-installation，When equipment initializes received by up direction and/or down direction/the data form of data that processes determines mode of operation，As determined mode of operation according to Data Source and transfer rate，Such as, when the Data Source of the light data received is subscriber equipment，Agreement in the running parameter of self is set to point to multipoint communi cation protocol, and (user is relatively low to data transmission rates demands，Multiple user's multiplexing Same Wavelength can be adopted to complete data transmission)，Such as, when the Data Source of the light data received is base station，Agreement in the running parameter of self is set to point-to-point protocol, and (base station carries out during data back data transmission rates demands is significantly high，Being generally adopted a base station utilizes a wavelength to complete data transmission)，Transfer rate according to light data arranges the speed in running parameter，Other scenes are similar，Repeat no more；Determining that mode of operation can also operationally dynamically configure according to data form, now data can be carried out buffer memory, dynamically configuration carries out data process and transmission after terminating again.
In certain embodiments, optical line terminal elementary cell includes the light transmitting element for converting electrical signals to optical signal, and light transmitting element includes supporting different passive optical network protocol and/or the optical-fiber network protocol module of speed, parallel serial conversion module and optical transmitter；Now, the step S102 in embodiment illustrated in fig. 1 includes: arrange optical-fiber network protocol module according to the agreement in the mode of operation of each elementary cell and speed, arranges the operating rate of parallel serial conversion module and optical transmitter according to the speed in mode of operation.
In certain embodiments, optical line terminal elementary cell includes the light receiving unit for converting optical signals to the signal of telecommunication, and light receiving unit includes optical receiver, serioparallel exchange and clock data recovery module and supports the optical-fiber network protocol module of different passive optical network protocol and/or speed；Now, step S102 in embodiment illustrated in fig. 1 includes: arranges optical receiver and serioparallel exchange and the operating rate of clock data recovery module according to the speed in the mode of operation of each elementary cell, arranges optical-fiber network protocol module according to the agreement in mode of operation and speed.
In certain embodiments, optical line terminal includes the optical line terminal elementary cell of two or more numbers, now, the step S102 in embodiment illustrated in fig. 1 includes: the optical line terminal elementary cell controlling two or more numbers with wavelength division multiplexed mode processes data with its mode of operation each determined.
Second embodiment:
The structural representation of the optical line terminal that Fig. 2 provides for second embodiment of the invention, as shown in Figure 2, in the present embodiment, optical line terminal 2 provided by the invention includes processor 21 and optical line terminal elementary cell 22, wherein,
Processor 21, for determining the mode of operation of optical line terminal elementary cell 22, controls optical line terminal elementary cell 22 and processes data with its mode of operation determined；
Optical line terminal elementary cell 22 for working under the control of processor 21.
In certain embodiments, the processor 21 in embodiment illustrated in fig. 2 specifically for determining mode of operation according to the application scenarios of optical line terminal, or, determine mode of operation according to user operation.
In certain embodiments, as in figure 2 it is shown, optical line terminal 2 also includes clock generator 23, clock generator 23 for producing system clock under the control of processor 21, and the work for functional module each in optical line terminal elementary cell 22 provides system clock.
In certain embodiments, as shown in Figure 2, optical line terminal 2 includes two and above optical line terminal elementary cell 22 (Fig. 2 merely exemplary give 2), two and above optical line terminal elementary cell 22 work in wavelength division multiplexed mode under the control of processor 21, namely, multiple optical line terminal elementary cells 22 are multiplexed into the optical line terminal of a up-downgoing multi-wavelength pair by the wavelength of the optical signal that each optical line terminal elementary cell 22 is all corresponding different by wavelength division multiplexed mode.
In conjunction with concrete application example the present invention done and further annotate explanation.
3rd embodiment:
For optical link system, in the present embodiment, as shown in Figure 3, equipment 31 (use data service) not in the know is by optical network unit (ONU, OpticalNetworkUnit) 32 optical-fiber network is accessed, equipment 31 not in the know include base station and and subscriber equipment, the ONU being connected with base station works in ad hoc mode, the ONU being connected with subscriber equipment works in point-to-multipoint pattern, intra-office equipment 33 (being used for providing the business such as data) accesses optical-fiber network by optical line terminal 2 provided by the invention, is connected by optical fiber between optical line terminal 2 and ONU32.In actual applications, optical fiber can transmit the optical signal of 8 different wave lengths, optical signal corresponding optical line terminal elementary cell 22 in optical line terminal 2 that each wavelength is different, optical signal number can carry out increasing or reducing according to practical application, now only needs to increase (enabling)/minimizing (disabling) optical line terminal 2 or some light road terminal elementary cell 22.Prior art needs the OLT of procurement support different agreement/speed, and the present embodiment side only needs to purchase/produce identical OLT, compatible strong, facilitate common carrier buying, system update and upgrading.
For optical line terminal 2, in the present embodiment, as shown in Figure 4, optical line terminal 2 includes 8 optical line terminal elementary cells 22, in order to realize wavelength-division multiplex, optical line terminal 2 also includes wavelength division multiplexer 24, and wavelength division multiplexer 24 realizes separation and the integration of the optical signal to different wave length.
nullFor optical line terminal elementary cell 22，In the present embodiment，As shown in Figure 5，Optical line terminal elementary cell 22 includes TWDM-PON (TWDM-PON，timeandwavelengthdivisionmultiplexedpassiveopticalnetwork，Wavelength-division multiplex and time-multiplexed hybrid passive optical network) downsream (descending) MAC (supporting 2.5/10Gbps data rate) 501、TWDM-PONupstream (up) MAC (support 2.5Gbps data rate) 502、TWDM-PONupstreamMAC (support 10Gbps data rate) 503、PtPWDM-PON(wavelengthdivisionmultiplexedpassiveopticalnetwork，Wave division multiplexing passive optical network) MAC (supporting 0-10Gbps data rate) 504、MAC selects module 505、BM (burst mode)-CDR (ClockDataRecovery，Clock and data recovery) MAC (supporting 2.5Gbps data rate) 506、BM-CDRMAC (support 10Gbps data rate) 507、CM (successive module)-CDRMAC (support 0-10Gbps data rate) 508、Data select switch 509、Data distribution switch 510、The parallel-to-serial converter 511 of the continuous mode of multi tate、Optical transmitter 512 and optical receiver 513.
Wherein, TWDM-PONdownsream (descending) MAC501, PtPWDM-PONMAC504 are as the optical-fiber network protocol module of light transmitting element in optical line terminal elementary cell, the parallel-to-serial converter 511 of the continuous mode of multi tate is as parallel serial conversion module, and data select switch 509 selects from 501 or 504 output data to parallel-to-serial converter 511 according to operating protocol；TWDM-PONupstreamMAC502, TWDM-PONupstreamMAC503, PtPWDM-PONMAC504 are as the optical-fiber network protocol module in light receiving unit, BM-CDRMAC506, BM-CDRMAC507, CM-CDRMAC508 are as serioparallel exchange and clock data recovery module, and signal of telecommunication output is carried out data recovery to corresponding for serioparallel exchange and clock data recovery module according to the parameter (including burst mode or continuous mode and data rate) of the signal of telecommunication of optical receiver 513 output by data distribution switch 510；MAC selects module 505, data select switch 509 and data distribution switch 510 to carry out MAC (501,502,503,504,506,507 and 508) under the control of processor 21 and select work, selected MAC is active, unchecked MAC dormancy；
Concrete, under the application scenarios of the present embodiment, the mode of operation of each optical line terminal is as follows:
For with the ONU (being connected base station) the working in ad hoc mode optical line terminal elementary cell 22 connected, optical line terminal elementary cell 22 needs work and point-to-point (PtP) agreement, now, MAC in this optical line terminal elementary cell 22 selects module 505 to choose MAC504 as the optical-fiber network protocol module in light transmitting element, and the optical-fiber network protocol module in light receiving unit, data select switch 509 chooses the data input data as parallel-to-serial converter 511 of MAC504, data distribution switch 510 chooses MAC508 as the serioparallel exchange in light receiving unit and clock data recovery module；Now, equipment 32 not in the know is base station, the optical signal that base station is inputted by optical fiber is sent after being converted to the signal of telecommunication to intra-office equipment 33 by optical receiver 513, MAC508, MAC504, and the signal of telecommunication of intra-office equipment 33 input is converted to optical signal by MAC504, parallel-to-serial converter 511 and optical transmitter 512 and sends to the ONU being connected with base station；
nullFor with the ONU (being connected subscriber equipment) the working in point-to-multipoint pattern optical line terminal elementary cell 22 connected，This optical line terminal elementary cell 22 needs work and point-to-multipoint (PtMP) agreement，Now，MAC in this optical line terminal elementary cell 22 selects module 505 to choose MAC501 as the optical-fiber network protocol module in light transmitting element、Choose MAC502 and/or MAC503 (needing the data rate according to the signal of telecommunication being converted to by received optical signal to determine) as the optical-fiber network protocol module in light receiving unit，Data select switch 509 chooses the data input data as parallel-to-serial converter 511 of MAC501，Data distribution switch 510 chooses MAC506 and/or MAC507 (needing the data rate according to the signal of telecommunication being converted to by received optical signal to determine) as the serioparallel exchange in light receiving unit and clock data recovery module；Now, equipment 32 not in the know is subscriber equipment, subscriber equipment passes through the same wavelength of time division multiplexing multiplexing, its optical signal inputted by optical fiber is sent after being converted to the signal of telecommunication to intra-office equipment 33 by optical receiver 513, MAC506 and/or MAC507, MAC502 and/or MAC503, and the signal of telecommunication of intra-office equipment 33 input is converted to optical signal is sent to the ONU being connected with subscriber equipment by MAC501, parallel-to-serial converter 511 and optical transmitter 512.
In summary, by the enforcement of the present invention, at least there is following beneficial effect:
Optical line terminal includes the optical line terminal elementary cell supporting different working modes, when practical application, determine the mode of operation of optical line terminal elementary cell, thus can need the demand to optical line terminal running parameter under satisfied different scene so that optical line terminal provided by the invention possesses better compatibility compared with the existing optical line terminal only supporting AD HOC.
Below it is only the specific embodiment of the present invention; not the present invention is done any pro forma restriction; every any simple modification, equivalent variations, combination or modification embodiment of above done according to the technical spirit of the present invention, all still falls within the protection domain of technical solution of the present invention.
Claims (10)
1. the control method of an optical line terminal, it is characterized in that, described optical line terminal includes optical line terminal elementary cell, described optical line terminal elementary cell possesses two and mode of operations different above, described mode of operation include described optical line terminal elementary cell process data time agreement and speed；Described control method includes:
Determine the mode of operation of described optical line terminal elementary cell；
Control described optical line terminal elementary cell and process data with its mode of operation determined.
2. control method as claimed in claim 1, it is characterized in that, the step of the described mode of operation determining described optical line terminal elementary cell includes: determine described mode of operation according to the application scenarios of described optical line terminal, or, determine described mode of operation according to user operation.
3. control method as claimed in claim 1, it is characterized in that, described optical line terminal elementary cell includes the light transmitting element for converting electrical signals to optical signal, and described smooth transmitting element includes supporting different passive optical network protocol and/or the optical-fiber network protocol module of speed, parallel serial conversion module and optical transmitter；The step that described control described optical line terminal elementary cell processes data with its mode of operation determined includes: arranges described optical-fiber network protocol module according to the agreement in described mode of operation and speed, arranges the operating rate of described parallel-serial conversion main frame and described optical transmitter according to the speed in described mode of operation.
4. control method as claimed in claim 1, it is characterized in that, described optical line terminal elementary cell includes the light receiving unit for converting optical signals to the signal of telecommunication, and described light receiving unit includes optical receiver, serioparallel exchange and clock data recovery module and supports the optical-fiber network protocol module of different passive optical network protocol and/or speed；The step that described control described optical line terminal elementary cell processes data with its mode of operation determined includes: arranges described optical receiver and the operating rate of described serioparallel exchange and clock data recovery module according to the speed in described mode of operation, arranges described optical-fiber network protocol module according to the agreement in described mode of operation and speed.
5. the control method as described in any one of Claims 1-4, it is characterized in that, described optical line terminal includes the optical line terminal elementary cell of two or more numbers, and the step that described control described optical line terminal elementary cell processes data with its mode of operation determined includes: the optical line terminal elementary cell controlling said two and above number with wavelength division multiplexed mode processes data with its mode of operation each determined.
6. an optical line terminal, it is characterized in that, described optical line terminal includes processor and optical line terminal elementary cell, described optical line terminal elementary cell possesses two and mode of operations different above, described mode of operation include described optical line terminal elementary cell process data time agreement and speed；Wherein,
Described processor, for determining the mode of operation of described optical line terminal elementary cell, controls described optical line terminal elementary cell and processes data with its mode of operation determined；
Described optical line terminal elementary cell for working under the control of described processor.
7. optical line terminal as claimed in claim 6, it is characterised in that described processor specifically for determining described mode of operation according to the application scenarios of described optical line terminal, or, determine described mode of operation according to user operation.
8. optical line terminal as claimed in claim 6, it is characterised in that described optical line terminal also includes clock generator, described clock generator for providing system clock for described optical line terminal elementary cell under the control of described processor.
9. the optical line terminal as described in any one of claim 6 to 8, it is characterized in that, described optical line terminal includes the optical line terminal elementary cell of two or more numbers, and described processor is additionally operable to control with wavelength division multiplexed mode the optical line terminal elementary cell of said two and above number and processes data with its mode of operation each determined.
10. an optical link system, it is characterised in that include the optical line terminal as described in any one of claim 6 to 9.
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| CN201410805781.1A CN105792026B (en) | 2014-12-22 | 2014-12-22 | Optical line terminal control method, optical line terminal and optical line system |
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| CN201410805781.1A CN105792026B (en) | 2014-12-22 | 2014-12-22 | Optical line terminal control method, optical line terminal and optical line system |
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