WO2016101431A1 - Procédé et appareil de réglage de puissance - Google Patents

Procédé et appareil de réglage de puissance Download PDF

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Publication number
WO2016101431A1
WO2016101431A1 PCT/CN2015/075152 CN2015075152W WO2016101431A1 WO 2016101431 A1 WO2016101431 A1 WO 2016101431A1 CN 2015075152 W CN2015075152 W CN 2015075152W WO 2016101431 A1 WO2016101431 A1 WO 2016101431A1
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WIPO (PCT)
Prior art keywords
power adjustment
board
optical
optical power
determined
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PCT/CN2015/075152
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English (en)
Chinese (zh)
Inventor
杜树奎
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2016101431A1 publication Critical patent/WO2016101431A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control

Definitions

  • the present invention relates to the field of communications, and in particular to a power adjustment method and apparatus.
  • the Dense Wavelength Division Multiplexing (DWDM) system is divided into two phases: opening and running.
  • the opening is mainly divided into several stages: line connection, multiplex layer amplifier gain adjustment, and channel layer power balance.
  • System connectivity and line attenuation testing, configuration of the attenuator needs to be sent to each site to complete. After the system is connected, you need to manually configure the amplifier gain in the NMS according to the direction of the service flow and query the performance of the board by the network element to ensure the power and signal-to-noise ratio of the receiver.
  • the channel power adjustment is required before the system is running to ensure the equalization of the power of each channel and the sensitivity of the receiving end.
  • it is necessary to perform necessary maintenance on the system manually or automatically such as system power changes (most common line attenuation changes, device aging is also a possible problem in the future), maintenance personnel need to check the alarm and performance, and Adjust the adjustable board automatically or manually on the NMS to keep the system power in an optimal state.
  • optical channel power adjustment methods commonly used in the industry are as follows:
  • Manually-adjusted manual optical channel power adjustment including: Before the optical path is opened in the deployment, according to the requirements of the current network planning, according to the output power range of the service board, the nominal gain and power of the amplifier board are calculated, and the adjustment board is manually calculated. Configure the channel adjustment value of the board and then open the optical path. During the system operation phase, the system power is changed periodically and the staff periodically adjusts.
  • the method for adjusting dynamic optical power of a wavelength division multiplexed optical transmission system disclosed in the patent CN201310184485.X specifically comprising: a light wave emitted by a plurality of optical transmitting units is combined by an optical multiplexer and then enters a channel dynamic power adjuster. And the primary power balance adjustment is performed according to the optical power adjustment budget value obtained by the optical power flatness requirement; the optical channel performance monitoring module collects the spectral output of the optical power amplifier monitoring port, and the channel dynamic power adjuster performs feedback according to the optical channel performance monitoring module. The channel dynamic power balance is adjusted until the optical power flatness of the optical power amplifier output meets the requirements.
  • the power adjustment value in the related art 1 needs to be manually calculated according to the plan, although the power adjustment purpose can be finally achieved, but it takes a lot of time and labor, and encounters the group.
  • the scale of the network and the volume of business are huge, the efficiency and operability will be greatly reduced.
  • the optical path is opened, the fluctuation of the power of the line and the optical device may cause deterioration of the optical performance index. Correct the adjustment in time.
  • the disclosed technical solution in the related art 2 is only for the adjustment of the optical path of the optical channel service of the system, and does not consider the power pre-adjustment before the optical path is opened.
  • the adjustment value of the optical power is unreasonable, resulting in the optical device.
  • the technology only adjusts for the light flatness index, and does not consider the optical signal-to-noise ratio.
  • the tolerance of the receiving end to the optical power fluctuation cannot guarantee the optimal bit error rate at the receiving end.
  • the related technologies 1 and 2 cannot change the original adjustment value in time for the change of the number of fully configured wavelengths, which further deteriorates the service optical performance index of the optical channel. It can be seen that in the related art, the efficiency of optical channel power adjustment is low, and the operability is poor.
  • the optical performance index cannot be adjusted to be optimal in time, and the optical performance index is not comprehensively considered, so that the error rate of the receiving end cannot reach the optimal. The problem of poor adaptability to expansion and contraction.
  • the embodiment of the invention provides a power adjustment method and device, so as to solve at least the problem of low efficiency and poor operability of optical power adjustment existing in the related art.
  • a power adjustment method including: dividing a physical route that an optical channel layer service passes through into different types of segments supporting power adjustment before the optical path is opened, wherein the segment The type includes an add-on, a pass, and a drop; and at least according to the type of the segment, the type of the board supporting the power adjustment in the section, and the input range of the optical power of the receiving end board in the section.
  • the optical power adjustment value of the board supporting the power adjustment in the segment is determined; after the optical path is turned on, the optical power is adjusted according to the determined optical power adjustment value of the board.
  • Adjusting the optical power according to the determined optical power adjustment value of the board including: determining actual power of light passing through the section; supporting the determined section by using the determined actual power of the light
  • the optical power adjustment value of the power-adjusted board is corrected; and the optical power adjustment value of the modified board is used to adjust the optical power.
  • Correcting, by using the determined actual power of the light, the determined optical power adjustment value of the board supporting the power adjustment in the section includes: determining a type of the section; according to the determined type of the section The determined optical power adjustment value of the board supporting the power adjustment in the section is corrected.
  • Determining, according to the determined type of the segment, the optical power adjustment value of the board supporting the power adjustment in the segment including: determining, when the type of the segment is an uplink or an overpass, determining according to the determining Calculating a board supporting power adjustment in the section, at least one of the actual power of the light, the number of fully configured wavelengths of the amplifying board in the section, and the nominal output optical power of the amplifying board in the section
  • the optical power adjustment value is used to correct the determined optical power adjustment value of the board according to the calculated optical power adjustment value of the board.
  • adjusting the optical power according to the determined optical power adjustment value of the board including: setting a timing parameter, where the timing parameter includes a timing time range and/or a timing time interval; determining, by using the timing parameter timing, according to the determining The optical power adjustment value of the board adjusts the optical power.
  • a power adjustment apparatus including: a dividing module, configured to divide a physical route through which an optical channel layer service passes into different types of segments supporting power adjustment before the optical path is opened;
  • the type of the segment includes an uplink, a transit, and a downlink; and the determining module is configured to: according to the type of the segment, a type of a board that supports power adjustment in the segment, and a receiving end in the segment At least one of the input ranges of the optical power of the board determines an optical power adjustment value of the board supporting the power adjustment in the section; the adjustment module is configured to, after the optical path is opened, according to the determined board The optical power adjustment value adjusts the optical power.
  • the adjustment module includes: a determining unit configured to determine actual power of light passing through the segment; and a correcting unit configured to use the determined actual power of the light to determine a supported power adjustment in the segment
  • the optical power adjustment value of the board is corrected; the first adjustment unit is configured to adjust the optical power by using the corrected optical power adjustment value of the board.
  • the modifying unit includes: a determining subunit, configured to determine a type of the segment; and a modifying subunit, configured to determine, according to the determined type of the segment, a board that supports power adjustment in the segment The optical power adjustment value is corrected.
  • the correction subunit is configured to: when the determined type of the segment is an on-road or an over-route, according to the determined actual power of the light, the number of full-length wavelengths of the magnifying plate in the segment, the region Calculating an optical power adjustment value of the board supporting the power adjustment in the section in at least one of the nominal output optical power of the amplifying board in the segment; determining the specified single according to the calculated optical power adjustment value of the board The optical power adjustment value of the board is corrected.
  • the correction subunit is configured to: when the determined type of the segment is a downlink, calculate an optical power adjustment of a board supporting power adjustment in the segment according to the determined power range of the actual power of the optical The value of the determined optical power adjustment value of the board is corrected according to the calculated optical power adjustment value of the board.
  • the adjustment module includes: a setting unit configured to set a timing parameter, wherein the timing parameter includes a timing time range and/or a timing time interval; and a second adjustment unit configured to use the timing parameter timing according to the determined
  • the optical power adjustment value of the board adjusts the optical power.
  • the physical route that the optical channel layer service passes is divided into different types of segments that support power adjustment, where the types of the segments include the uplink, the transit, and the downlink; Determining at least one of the type of the segment, the type of the board supporting the power adjustment in the segment, and the input range of the optical power of the receiving end board in the segment determining the power adjustment in the segment.
  • the optical power adjustment value of the board after the optical path is opened, the optical power is adjusted according to the determined optical power adjustment value of the board, which solves the low efficiency of the optical power adjustment in the related art, and has poor operability. The problem, in turn, achieves the effect of improving the efficiency of optical power adjustment.
  • FIG. 1 is a flow chart of a power adjustment method according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the structure of a power adjustment apparatus according to an embodiment of the present invention.
  • FIG. 3 is a block diagram 1 of a configuration of an adjustment module 26 in a power adjustment apparatus according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing the structure of a correction unit 34 in a power adjustment apparatus according to an embodiment of the present invention
  • FIG. 5 is a second structural block diagram of an adjustment module 26 in a power adjustment apparatus according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of an optical channel power adjustment method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of optical channel power adjustment according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of optical channel service routing according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a power adjustment method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:
  • Step S102 Before the optical path is opened, the physical route that the optical channel layer service passes is divided into different types of segments that support power adjustment, where the type of the segment includes an uplink, a transit, and a downlink;
  • step S104 determining, according to the type of the segment, the type of the board that supports the power adjustment in the segment, and the input range of the optical power of the receiving end board in the segment, determining the board supporting the power adjustment in the segment.
  • Optical power adjustment value determining, according to the type of the segment, the type of the board that supports the power adjustment in the segment, and the input range of the optical power of the receiving end board in the segment, determining the board supporting the power adjustment in the segment.
  • Step S106 After the optical path is turned on, the optical power is adjusted according to the determined optical power adjustment value of the board.
  • the optical power adjustment value of the single board is adjusted before the optical path is opened, thereby avoiding the consequence of avoiding the burning of the optical device due to the unreasonable adjustment value, and solving the low efficiency of the optical power adjustment existing in the related art.
  • the problem of poor operability, and the effect of improving the efficiency of optical power adjustment is achieved.
  • adjusting the optical power according to the determined optical power adjustment value of the board may include: determining an actual power of the light passing through the section; and adjusting the supported power in the determined section by using the determined actual power of the light.
  • the optical power adjustment value of the board is corrected; the optical power is adjusted by using the corrected optical power adjustment value of the board.
  • the adjustment value is modified twice according to the actual optical power, thereby ensuring the optimal optical performance index such as the optical signal-to-noise ratio of the optical channel layer service at the time of deployment, and providing the efficiency of optical power adjustment.
  • Correcting the optical power adjustment value of the board supporting the power adjustment in the determined section by using the determined actual power of the optical includes a plurality of modes, wherein in an optional embodiment, the adjustment may be performed in the following manner: first determining After determining the type of the segment, the optical power adjustment value of the board supporting the power adjustment in the determined segment is corrected according to the determined type of the segment. For different types of sections, different correction methods can be used to ensure the accuracy of the correction.
  • the following method may be adopted: when the determined type of the section is an on-road or an over-route, according to the determined actual power of the light, the amplification board in the section Calculating at least one of the number of wavelengths and the nominal output optical power of the amplifier board in the section to calculate the board supporting the power adjustment in the section The optical power adjustment value is used to correct the optical power adjustment value of the determined board according to the calculated optical power adjustment value of the board.
  • the optical power adjustment value of the board in the downlink is corrected, the following method may be adopted: when the determined type of the segment is the downlink, the power in the segment is calculated according to the power range of the actual power of the determined light. Adjusting the optical power adjustment value of the board; correcting the optical power adjustment value of the determined board according to the calculated optical power adjustment value of the board.
  • adjusting the optical power according to the determined optical power adjustment value of the board may include the following steps: setting a timing parameter, where The timing parameter includes a timing time range and/or a timing time interval.
  • the timing parameter is used to adjust the optical power according to the determined optical power adjustment value of the board.
  • the method of timing trigger power adjustment can eliminate the impact of poor performance on optical performance indicators such as optical fibers and devices, save operation and maintenance costs, and ensure that services operate in an optimal state.
  • a power adjustment device is also provided, which is configured to implement the above-mentioned embodiments and preferred embodiments, and has not been described again.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 2 is a block diagram showing the structure of a power adjustment apparatus according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes a division module 22, a determination module 24, and an adjustment module 26. The apparatus will be described below.
  • the dividing module 22 is configured to divide the physical route that the optical channel layer service passes into different types of segments that support power adjustment before the optical path is opened, wherein the type of the segment includes an uplink, a transit, and a downlink; and the determining module 24 Connected to the partitioning module 22, configured to determine the section according to at least one of a type of the section, a type of a board that supports power adjustment in the section, and an input range of optical power of the receiving end board in the section.
  • the optical power adjustment value of the board supporting the power adjustment; the adjustment module 26 is connected to the determining module 24, and is configured to adjust the optical power according to the determined optical power adjustment value of the board after the optical path is turned on.
  • FIG. 3 is a block diagram 1 of a configuration of an adjustment module 26 in a power adjustment apparatus according to an embodiment of the present invention.
  • the adjustment module 26 includes a determination unit 32, a correction unit 34, and a first adjustment unit 36. The adjustment module 26 is described.
  • a determining unit 32 configured to determine the actual power of the light passing through the segment
  • the correcting unit 34 coupled to the determining unit 32, configured to utilize the determined power of the actual light to determine the light of the board that supports power adjustment in the determined segment
  • the power adjustment value is corrected
  • the first adjustment unit 36 is connected to the correction unit 34, and is configured to adjust the optical power by using the corrected optical power adjustment value of the board.
  • the correcting unit 34 includes a determining subunit 42 and a correcting subunit 44. The following describes the correcting unit 34. .
  • the determining subunit 42 is configured to determine the type of the segment; the modifying subunit 44 is coupled to the determining subunit 42 and configured to determine the optical power of the board supporting the power adjustment in the determined segment according to the determined type of the segment. Adjust the value to correct it.
  • the correcting sub-unit 44 may be configured to: when the determined type of the segment is an on-going or over-traveling, according to the determined actual power of the light, the number of full-scale wavelengths of the magnifying plate in the segment, and the nominal value of the magnifying plate in the segment.
  • the optical power adjustment value of the board that supports the power adjustment is calculated in at least one of the output optical powers; and the optical power adjustment value of the determined single board is corrected according to the calculated optical power adjustment value of the board.
  • the correction sub-unit 44 may be further configured to: when the determined type of the segment is the downlink, calculate the optical power adjustment value of the board supporting the power adjustment in the segment according to the determined power range of the actual power of the light; The optical power adjustment value of the board is corrected for the determined optical power adjustment value of the board.
  • FIG. 5 is a block diagram 2 of a configuration of an adjustment module 26 in a power adjustment apparatus according to an embodiment of the present invention.
  • the adjustment module 26 includes a setting unit 52 and a second adjustment unit 54, and the adjustment module 26 is provided below. Be explained.
  • the setting unit 52 is configured to set a timing parameter, wherein the timing parameter includes a timing time range and/or a timing time interval; the second adjusting unit 54 is connected to the setting unit 52, and is configured to determine according to the timing parameter timing.
  • the optical power adjustment value of the board adjusts the optical power.
  • a method and apparatus for power adjustment when creating an optical channel layer service are also proposed, thereby ensuring power of the channel.
  • the equalization, the optical signal-to-noise ratio at the receiving end, the bit error rate, and the power tolerance of the receiving end are the best results.
  • the adaptability to the expansion and contraction capacity is strong, and the efficiency of power adjustment is improved, and the operability is improved.
  • step A may include the following steps:
  • A1 Query the physical route through which the optical channel layer service passes.
  • the optical power adjustable segment is divided in the foregoing physical route, where the optical power adjustable segment refers to: a power segment including a power adjustable board, and the power segment refers to a service
  • the transmitting end is connected to the upper circuit of the amplifying board, the amplifying board is passed to the amplifying board, and the amplifying board is sent to the lower end of the service receiving end.
  • the initial value of the optical power of the wavelength of the optical channel can be adjusted.
  • step B may include the following steps:
  • B1 traverse the optical power adjustable section, and determine whether the section is on the road, on the road, or on the road.
  • the average output optical power of the single wavelength channel passing through the amplifying board is calculated according to the full output wavelength of the amplifying board and the nominal output optical power of the amplifying board. Measure the output optical power of the current channel of the adjustable single board, and amplify the output optical power of the current wavelength channel of the board. According to the change of the output optical power of the single channel of the amplifying board, the change of the input optical power is obtained, and the target input light of the current channel through the amplifying board is obtained. The power can adjust the adjustment value of the board. At this time, the wavelength optical power of the amplifier board is saturated, which ensures the optimal optical signal-to-noise ratio.
  • B3 for the downlink segment, according to different service board types and input power ranges, take the intermediate value of the input power range as the target output optical power of the current wavelength channel of the board, and the tolerance of the receiver to the system power variation maximum.
  • a device for establishing power adjustment when the optical channel service is created includes: a power pre-adjustment unit configured to initialize an adjustment value of the adjustable single board before the optical path is turned on; and a power adjustment unit (same as above)
  • the correcting unit 34) is configured to correct the adjustment value of the adjustable single board according to the optical power of the actual detection point after the optical path is turned on.
  • the database is set to record the optical power adjustable section of the current optical channel service; the timing power adjustment unit (same as the second adjustment unit 54 described above), the engineering operation phase, the fluctuation of the system optical power of the optical channel service leads to the optical signal of the system The performance index such as noise ratio is degraded.
  • the timing power adjustment can be selected, the startup timing time range, the timing interval, and the timing power adjustment.
  • the power pre-adjusting unit in the foregoing apparatus may include: a searching unit, configured to query a physical route of the service; and a power adjustable segment dividing unit (same to the dividing module 22) configured to divide the power adjustable area according to the physical route
  • the adjustment value initialization unit (the same as the above-mentioned determination module 24) is configured to query the xml rule library file to initialize the adjustment value of the adjustable board; the xml rule library file is set to store the adjustable section type, and the board type can be adjusted. Correspondence between the type of the board at the receiving end and the adjustment value.
  • the power adjustable section dividing unit in the above apparatus is connected to a database that stores the adjustable section unit.
  • the power adjustment unit in the above apparatus may include: a receiving unit configured to acquire a power adjustable section from a database and start traversing the section; the first determining unit (same as the determining subunit 42 described above) is configured to receive from the receiving unit The power adjustable section determines whether the current power adjustable section is an uplink or a bypass, and outputs a control signal when the determination is negative; the second determining unit is configured to determine the current power according to the control signal of the first determining unit The adjustable section is the next way.
  • the power adjustment unit in the above apparatus further includes: an uplink/overpass adjustment value calculation unit (same as the correction subunit 44 described above), configured to determine the true optical power according to the current system environment when the power adjustable section is an on-road or an on-route type.
  • an uplink/overpass adjustment value calculation unit (same as the correction subunit 44 described above), configured to determine the true optical power according to the current system environment when the power adjustable section is an on-road or an on-route type.
  • the information is calculated to the target value, and the current adjustment value is modified;
  • the on/over adjustment value calculation unit is connected to the first determination unit, and when the first determination unit determines that the result is yes, the on/over adjustment value calculation unit is started;
  • the value calculation unit (same as the correction sub-unit 44 described above) is configured to calculate the target value according to the optical power range of the input port of the receiving end when the power adjustable section is the downlink, and correct the current adjustment value;
  • the road adjustment value calculation unit is connected to the second determination unit, and when the second determination unit determines that the result is YES, the lower path adjustment value calculation unit is activated.
  • the optical power adjustment method mainly performs power adjustment when the optical channel service is created, improves the efficiency of the deployment, and ensures the power balance of the channel, the optical signal-to-noise ratio of the receiving end, and the receiving end.
  • the indicators such as power tolerance are optimal; the power stage adjusts the power adjustment at the running stage to make the service run in an optimal state.
  • the invention firstly performs power pre-adjustment before the creation of the service optical path is opened. After the optical path is opened, the power adjustment value is calculated according to the current actual optical power of the system, and the correction processing is performed, so that the optical performance index is optimized.
  • FIG. 6 is a flow chart of an optical channel power adjustment method according to an embodiment of the invention. As shown in FIG. 6, the process includes the following steps:
  • Step S602 starting.
  • step S604 the physical route is queried according to the service, where the route includes the input and output ports of each board.
  • Step S606 Divide the power adjustable section according to the physical route, and divide the outgoing path, the transit path, and the downlink path of the service.
  • step S608 the adjustable section is analyzed, and the adjustable optical power adjustment value of the single board is obtained according to the adjustable section type, the adjustable board type, and the optical power input range of the receiving end board.
  • step S610 the obtained adjustable value is delivered to the specific adjustable board, and the service optical path is opened.
  • step S612 for each adjustable segment, the power adjustment value of the adjustable single board is calculated according to the current actual optical power, and the correction processing is performed.
  • Step S604 to S610 have completed the power adjustment before the optical path is turned on.
  • step S612 the optical power after the optical path is turned on is adjusted and corrected, thereby ensuring optimal optical performance.
  • Step S612 can also be used for timing power adjustment during the system operation phase.
  • step S612 further includes the following steps:
  • Step S6121 traversing each adjustable section, performing power adjustment in units of adjustable sections, and correcting the initial adjustment value.
  • step S6122 it is determined whether the current adjustable section is traversed in step S6121, whether it is an on-going or an over-route. If yes, step S6124 is performed, and if no, step S6123 is performed.
  • step S6123 it is determined whether the current adjustable section is traversed, whether it is a downlink, if yes, step S6125 is performed, and if no, step S6126 is performed.
  • Step S6124 Calculate the power adjustment value of the adjustable board of the currently adjustable or over-routed section.
  • Step S6125 Calculate the power adjustment value of the current adjustable section of the current path.
  • step S6126 it is determined whether the tunable segment is traversed. If not, the traversal is performed in step S6121. If yes, the power adjustment of the service is completed and the process ends.
  • FIG. 7 is a schematic structural diagram of optical channel power adjustment according to an embodiment of the present invention.
  • the apparatus includes: a power pre-adjusting unit 710 configured to initialize an adjustment value of an adjustable single board before the optical path is opened; and a power adjustment unit 730, configured to traverse the adjustable power section in the database 720, and correct the adjustment value of the adjustable board according to the actually detected optical power in the adjustable section after the optical path is opened.
  • the database 720 is configured to record an optical power adjustable section of the current optical channel service; the timing trigger power adjustment unit 740 (same as the second adjustment unit 54 described above), the engineering operation phase, the fluctuation of the system optical power of the optical channel service causes the system The performance indicators such as optical signal-to-noise ratio are degraded.
  • the timing power adjustment can be selected, the start timing time range, the timing interval, and the timing power adjustment.
  • the power pre-adjusting unit 710 includes: a searching unit 711 configured to query a physical route corresponding to the service; and a power adjustable segment dividing unit 712 configured to divide the power adjustable region according to the physical route of the searching unit 711
  • the segment 712 is connected to the database 720 unit, and the database unit shown stores the divided power adjustable section;
  • the adjustment value initial value rule file 713 is set to record the adjustment section type, and the condition of the board type and the adjustment value can be adjusted.
  • the adjustment value initializing unit 714 is connected to the adjustment value initial value rule file 713, and is set to calculate the adjustment value of the adjustable board according to the rule;
  • the service optical path opening unit 715 is set to open the service after the adjustment value is sent. Light path.
  • the power adjustment unit 730 includes: a receiving unit 731 configured to acquire a power adjustable section included in the channel service from the database 720 and traverse the sections; and the first determining unit 732 is configured to determine the receiving unit 731. Whether the traversed adjustable section is an on-road or an over-route, and outputs a control signal when the determination result is no; the on-route/over-route adjustment value calculation unit 733 is set to be based on the adjustable area when the first determination unit 732 determines that the result is YES.
  • the optical power actually measured by the segment, the full number of wavelengths of the amplifying board, the nominal output optical power of the amplifying board, and the adjustment value of the adjustable board of the uplink or the bypass are calculated; the second determining unit 734 is set to be in the first determining unit 732.
  • the control signal is received, and it is determined whether the current adjustable section is a downlink.
  • the downlink adjustment value calculation unit 735 sets To determine whether the result is YES in the second determining unit 734, the adjustment value of the down-channel adjustable board is calculated according to the power range of the receiving end.
  • the above method and device can be implemented by software programming, and the improvement is convenient, and the operability is strong. Compared with the prior art, the optimal optical performance index can be obtained more effectively and accurately.
  • the implementation of the present invention will be described in detail below with reference to FIG. 8 in a specific example.
  • FIG. 8 is a schematic diagram of optical channel service routing according to an embodiment of the present invention. As shown in FIG. 8 , it is assumed that the planning system will carry 40 channels of channels, and a channel is created as an example to introduce optical power adjustment in creating channels and running maintenance.
  • the channel frequency is 192.100.
  • the route that the channel passes through is: the optical signal is generated by the optical transceiver board A. After the power adjustment board B performs the multiplexing processing, the amplifier board C performs power amplification on the optical channel signal to complete the uplink and optical detection.
  • the board 1 is connected to the amplifying board C, and is responsible for detecting the output optical power of the current optical channel signal passing through the amplifying board; after long-distance optical fiber transmission, the optical signal passes through the amplifying board D, the power adjusting board E, the amplifying board F, and completing the crossing.
  • the optical detection board 2 is connected to the F; the long-distance optical fiber is transmitted again, and after the amplification board G, the power adjustment board is subjected to the H-wave processing, and the light receiving board I is completed.
  • the optical signal passes through the upper amplifier board C, and the noise amplification channel D and F ports generate noise, which deteriorates the signal-to-noise ratio of the channel.
  • the power adjustment board B and the power adjustment board E need to be adjusted for power. Equalization ensures that the channel power entering the amplifying board is the same and largest, thereby reducing the influence of noise on the optical signal; when the optical signal is off, the signal path of the optical channel is Compared with the already fixed, the maximum tolerance of the optical power of the receiving end channel is the main contradiction. It is most important to adjust the power adjustment board H to ensure that the maximum input optical power fluctuation of the receiving end is within the sensitivity and overload power range.
  • the following is an example to introduce the process of pre-power pre-adjustment before the service optical path is established, power adjustment after the optical path is opened, and timing adjustment power adjustment during system operation.
  • the adjustment value initial value rule is set as follows:
  • the power is adjusted.
  • the optical signal is transmitted from the transmitting end to the receiving end.
  • the optical channel power fluctuates up and down.
  • the optical detection board 1 on the road detects that the output optical power of the current channel is 3 dBm.
  • the adjustable board on the upper channel has a channel detection function.
  • the current power is detected at -17 dBm.
  • the output power difference is equal to the input power difference.
  • the optical power of the channel detected by the optical detection board 2 is 2dBm, and the current channel power of the adjustable board is -16dBm.
  • the power range of the receiving board is -9dBm to -21dBm
  • the target value of the adjustment is -15dBm.
  • Timing triggering optical power adjustment during system operation If the set time interval is t, the start time and end time range are [t1, t2], then in the above time range, every t time period, the system follows the above steps. 2 Perform power adjustment for the adjustable section of the service to ensure that the optical performance index of the service is optimal.
  • the efficiency of the optical channel power adjustment existing in the related art can be effectively solved, and the operability is poor.
  • the optical performance index cannot be adjusted to be optimal in time, and the optical performance index is not comprehensively considered.
  • the problem that the bit error rate at the receiving end cannot reach the optimal and the adaptability to the expansion and contraction is poor.
  • power adjustment can be performed when the optical channel service is created, and manual operation is not required, thereby improving the efficiency of the initial power adjustment.
  • the initial adjustment is made before the light path is opened, which avoids the irrational burning of the optical device due to the unreasonable adjustment value.
  • the optical power signal is adjusted and adjusted according to the actual optical power of the system to ensure the optical signal-to-noise ratio of the optical channel layer service at the start of the operation.
  • the power adjustment can be triggered periodically, eliminating the influence of degradation of optical fibers and devices on optical performance indicators, greatly saving operation and maintenance costs, ensuring that the service runs in an optimal state, and at the same time, the system is based on detection.
  • the adjusted value is calculated by the full number of wavelengths of the amplifying board. When the number of expanding and contracting wavelengths is changed, the power adjustment value of each optical channel can be adjusted in time, so that the established optical channel can quickly reach an optimal state.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the power adjustment method and apparatus provided by the embodiments of the present invention have the following beneficial effects: the problem of low efficiency and poor operability of optical power adjustment existing in the related art is solved, thereby improving optical power adjustment.
  • the effect of efficiency is achieved.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne un procédé et un appareil de réglage de puissance. Le procédé consiste : avant qu'un chemin de lumière ne traverse, à diviser une route physique par laquelle un service de couche de canal optique passe en sections de différents types prenant en charge un réglage de puissance, les types de sections comprenant une route supérieure, une route traversante et une route inférieure ; selon au moins un type de section, du type de carte unique prenant en charge le réglage de puissance dans la section et d'une plage d'entrée de puissance optique d'une carte unique d'extrémité de réception dans la section, à déterminer une valeur de réglage de puissance optique de la carte unique prenant en charge le réglage de puissance dans la section ; et après que le chemin de lumière traverse, à régler la puissance optique selon la valeur de réglage de puissance optique déterminée de la carte unique. Au moyen de la présente invention, les problèmes dans l'état de la technique selon lesquels l'efficacité de réglage de puissance optique est faible et l'exploitabilité est médiocre, sont résolus, permettant ainsi à parvenir à l'effet d'augmentation de l'efficacité de réglage de puissance optique.
PCT/CN2015/075152 2014-12-22 2015-03-26 Procédé et appareil de réglage de puissance WO2016101431A1 (fr)

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CN112039598B (zh) * 2020-08-12 2022-01-07 烽火通信科技股份有限公司 一种基于误码率的通道功率自动搜索调整方法及系统
CN115882957A (zh) * 2021-08-05 2023-03-31 中兴通讯股份有限公司 光通道功率调节方法、系统和网络设备

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CN111327357B (zh) * 2018-12-14 2022-08-02 中兴通讯股份有限公司 一种业务开通的方法、终端和控制器

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