WO2025119033A1 - 分光器的端口识别方法、光网络系统、电子设备及介质 - Google Patents

分光器的端口识别方法、光网络系统、电子设备及介质 Download PDF

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Publication number
WO2025119033A1
WO2025119033A1 PCT/CN2024/134512 CN2024134512W WO2025119033A1 WO 2025119033 A1 WO2025119033 A1 WO 2025119033A1 CN 2024134512 W CN2024134512 W CN 2024134512W WO 2025119033 A1 WO2025119033 A1 WO 2025119033A1
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Prior art keywords
optical
power
coding combination
onu
splitter
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English (en)
French (fr)
Inventor
雷星宇
何志敏
马壮
谢云鹏
马爱萍
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ZTE Corp
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ZTE Corp
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07957—Monitoring or measuring wavelength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring

Definitions

  • the present application relates to the field of communication technology, and in particular to a port identification method for an optical splitter, an optical network system, an electronic device and a medium.
  • PON Passive Optical Network
  • OLT Optical Line Terminal
  • ODN Optical Distribution Network
  • ONU optical network unit
  • ODN is a passive optical network, which is composed entirely of passive devices, mainly including optical fiber and splitter. Since ODN realizes the transmission of optical signals from OLT to ONU through a point-to-point connection method, it has the characteristics of wide coverage area, huge branch optical path data, and complex scenarios. In addition, it has no power supply, which makes it difficult to locate and troubleshoot ODN faults. The accuracy of fault location is particularly important. To achieve fault location, it is necessary to accurately identify the port to which ONT is connected in ODN.
  • the technical solutions used in the relevant technology are:
  • the main purpose of the present application is to provide a port identification method for a splitter, an optical network system, an electronic device and a medium.
  • the present application provides a port identification method for an optical splitter, wherein the optical splitter includes M optical link output ports, and each optical link output port has a different transmittance coding combination configured corresponding to an optical signal, wherein M is an integer greater than one, and comprises: obtaining an optical signal from an optical distribution network, and determining a power coding combination of the optical signal, wherein the power coding combination is a coding combination formed by power ratios of different wavelengths within a passband range of a filter in an optical network unit (ONU), the transmittance coding combination is mapped one-to-one with the power coding combination, and the transmittance coding combination is a coding combination formed by transmittance ratios of different wavelengths within a passband range of a filter in the ONU; and determining the optical link output port of the optical splitter connected to the ONU according to the power coding combination.
  • the power coding combination is a coding combination formed by power ratios of different wavelengths within a passband range of a filter in an optical network
  • the present application also provides an optical network system, including an optical distribution network and an optical network unit ONU, wherein the optical distribution network includes filters and N-level splitters, wherein N is a positive integer; each level of the N-level splitters includes at least one splitter, wherein the splitter includes M optical link output ports, wherein at least M-1 of the M optical link output ports are correspondingly configured with different filters, and each optical link output port is correspondingly connected to one ONU, wherein M is an integer greater than 1; wherein different filters have different transmittance coding combinations for optical signals, and the transmittance coding combination is a coding combination formed by transmittance ratios for different wavelengths within the passband range of the filter in the ONU.
  • the present application also provides an electronic device, which includes: a memory, a processor, and a port identification program of a splitter stored in the memory and executable on the processor.
  • a port identification program of the splitter is executed by the processor, the port identification method of the splitter as described above is implemented.
  • the present application also provides a computer-readable storage medium, on which a port identification program for an optical splitter is stored.
  • a port identification program for an optical splitter is stored on which a port identification program for an optical splitter is stored.
  • the port identification program for an optical splitter is executed by a processor, the port identification method for an optical splitter as described above is implemented.
  • FIG1 is a schematic flow chart of a first embodiment of a method for identifying a port of an optical splitter according to the present invention
  • FIG2 is a schematic diagram of the architecture of a PON network system in an embodiment of the present application.
  • FIG3 is a schematic diagram of the structure of an optical network unit in an embodiment of the present application.
  • FIG4 is a schematic diagram of a change in the received power of an optical network unit in an embodiment of the present application.
  • FIG5 is a schematic diagram of the filter property design of the optical splitter for each optical link output port in an embodiment of the present application
  • FIG. 6 is a schematic diagram of the hardware structure of the electronic device involved in the embodiment of the present application.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • an embodiment of the present application provides a port identification method for a splitter, referring to Figure 1, which is a flow chart of an embodiment of a port identification method for a splitter of the present application.
  • the splitter includes M optical link output ports, and each optical link output port has a different transmittance coding combination corresponding to the optical signal, wherein M is an integer greater than one, including:
  • Step S100 obtaining an optical signal from an optical distribution network, and determining a power coding combination of the optical signal, wherein the power coding combination is a coding combination formed by power ratios of different wavelengths within a passband range of a filter in an optical network unit ONU, and the transmittance coding combination is mapped one-to-one to the power coding combination.
  • the power coding combination is a coding combination formed by power ratios of different wavelengths within a passband range of a filter in an optical network unit ONU, and the transmittance coding combination is mapped one-to-one to the power coding combination.
  • the transmittance coding combination is a coding combination formed by the transmittance ratios for different wavelengths within the passband range of the filter in the ONU.
  • At least M-1 optical link output ports among the M optical link output ports are correspondingly configured with filters, and the filters configured for the respective optical link output ports have different transmittance coding combinations for optical signals.
  • M is equal to 5, and at least 4 of the 5 optical link output ports are configured with filters, and the filters configured for each optical link output port have different transmittance coding combinations for optical signals.
  • M is equal to 8, and at least 7 of the 8 optical link output ports are configured with filters, and the filters configured for each optical link output port have different transmittance coding combinations for optical signals.
  • This embodiment does not make specific limitations on this. It is easy to understand that in this embodiment, it is not necessary to configure filters for all optical link output ports.
  • One of the optical link output ports may not be provided with a filter, that is, 100% transmission is performed for all wavelengths, while the remaining optical link output ports may be provided with different filters (different filters have different transmittance coding combinations for optical signals).
  • the optical link output ports configured with filters to have different energy filtering ratios (or transmittance ratios) for specific wavelengths, or to have energy filtering for different wavelengths (the filtering ratios corresponding to energy filtering for different wavelengths may be the same or different. When the energy filtering ratios are the same, the energy filtering ratios are not 0% filtering or 100% transmission).
  • the optical signal transmitted from each optical link output port to have different power coding combinations, wherein the power coding combination refers to a coding combination formed by the power ratios of different wavelengths in the optical signal.
  • step S200 is executed to determine the optical link output port of the optical splitter to which the ONU is connected according to the power coding combination.
  • filter A is set at optical link output port 1, then the optical signal incident on optical link output port 1 and transmitted through filter A, at this time, the power coding combination of the optical signal should be mapped to the transmittance coding combination a corresponding to filter A.
  • the power coding combination mapped to the transmittance coding combination a is S 1
  • the power coding combination of the optical signal transmitted by the optical fiber received by a certain optical network unit M 1 is S 1
  • it can be determined that the branch link port to which the optical network unit M 1 is connected on the splitter is the optical link output port 1.
  • filter B is set at the optical link output port 2, then the power coding combination of the optical signal incident on the optical link output port 2 and transmitted through filter B should be mapped to the transmittance coding combination b corresponding to filter B.
  • the power coding combination mapped by the transmittance coding combination b is S 2
  • the power coding combination of the optical signal transmitted by the optical fiber received by a certain optical network unit M 2 is S 2
  • it can be determined that the branch link port to which the optical network unit M 2 is connected on the splitter is the optical link output port 2.
  • At least M-1 optical link output ports among the M optical link output ports are configured with filters, wherein the filters configured for each optical link output port have different transmittance coding combinations for optical signals, so that when the optical signal incident to the splitter is split to each optical link output port, the filters configured for each optical link output port have different energy filtering ratios (or transmittance ratios) for specific wavelengths, or there is energy filtering for different wavelengths (the filtering ratios corresponding to energy filtering for different wavelengths may be the same or different), so that the optical signals transmitted from each optical link output port have different power coding combinations, and then the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified according to the power coding combinations of the optical signals transmitted from the optical fibers of different branch ports.
  • the optical splitter of the embodiment of the present application may be an optical splitter including N levels, wherein N may be one or an integer greater than or equal to two, and this embodiment does not make specific limitations. It should be noted that the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the same level of optical splitter is different.
  • the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the Kth level optical splitter is different from the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the Hth level optical splitter, and H and K are both positive integers, wherein the Kth level optical splitter and the Hth level optical splitter are any two levels of the N-level optical splitter.
  • the embodiment of the present application can determine which optical link output port in which level of splitter the optical network terminal is connected to based on the power coding combination of the optical signal transmitted from the optical fiber of different branch ports, thereby accurately identifying the branch link port information to which the specified optical network unit is connected on the splitter, thereby solving the problem of link information identification connected to the ONU in the passive ODN network of the PON network, and can be used for dynamic visualization management of ODN resources.
  • the present application proposes a port identification method for an optical splitter, an optical network system, an electronic device and a medium.
  • the optical splitter includes M optical link output ports, at least M-1 of the M optical link output ports are configured with different filters, and different filters have transmittance coding combinations for optical signals, where M is an integer greater than 1.
  • the technical solution of an embodiment of the present application is to obtain an optical signal from an optical distribution network and determine a power coding combination of the optical signal, wherein the power coding combination is a coding combination formed by power ratios for different wavelengths within a passband range of a filter in an optical network unit ONU, and the transmittance coding combination is related to the power ratio of the optical signal.
  • the transmittance coding combination is mapped one by one, and the transmittance coding combination is a coding combination formed by the transmittance ratio of different wavelengths within the passband range of the filter in the ONU, and then the optical link output port of the splitter connected to the ONU is determined according to the power coding combination, so that the embodiment of the present application utilizes the passband sideband effect of the filter to combine the branch ports with different reflectance ratios at the optical network unit (ONU) end and the optical distributed network (ODN) end to form different power change relationships (i.e., power coding combinations) for different branch ports, thereby facilitating accurate identification of the branch link port information to which the specified optical network unit is connected on the splitter based on the received different power change relationships.
  • the transmittance coding combination is a coding combination formed by the transmittance ratio of different wavelengths within the passband range of the filter in the ONU, and then the optical link output port of the splitter connected to the ONU is determined according to the power coding combination, so that the embodiment of
  • the embodiment of the present application can continue to use the hardware structure of the splitter and ONU in the original optical network system, without the need to design and adopt remote pump amplification technology on the splitter side, and without changing the original ONU structure design to add a receiver that can receive non-business wavelength signals, thereby achieving accurate identification of the port of the splitter connected to the ONU while reducing the cost of ODN.
  • the passband range includes the working band of the service light and sideband bands distributed on both sides of the working band
  • the transmittance coding combination is a coding combination formed by the transmittance ratios of different sideband wavelengths in the sideband band
  • the power coding combination is a coding combination formed by the power ratios of different sideband wavelengths in the sideband band.
  • the working band of the service light refers to the band range corresponding to the working wavelength of the service light, which can be specifically based on the working wavelength and the first preset wavelength floating up and down.
  • the passband range of the filter Due to the filter coating transition band and design redundancy of the filter in the optical network unit ONU, the passband range of the filter, on the basis of covering the working band, reserves a part of the band above and below the working band, which can be specifically based on the working band and the second preset wavelength floating up and down.
  • the second preset wavelength range (that is, the reserved band) that floats up and down is the sideband band, which refers to the other band ranges in the passband range of the filter except the working band, and the sideband band is located on both sides of the working band.
  • the filter in the optical network unit ONU can not only transmit 100% of the working wavelength ⁇ 10nm of the TX (Transmitter) transmitting end of the OLT (10nm is the first preset wavelength at this time), but also transmit 100% of the entire filter band of ⁇ 14nm due to the transition band of the filter coating and design redundancy.
  • the working band is [ ⁇ -10nm, ⁇ +10nm]
  • the sideband band is [ ⁇ -14nm, ⁇ -10nm), and ( ⁇ +10nm, ⁇ +14nm].
  • the wavelength within the sideband band is light energy without digital signals, which is only a 0-level signal without a modulation signal.
  • the filter in the optical network unit ONU can not only transmit the working wavelength ⁇ 10nm of the TX (Transmitter) transmitting end of the OLT 100% (10nm is the first preset wavelength at this time), but also transmit the entire filter band of ⁇ 16nm 100% due to the transition band of the filter coating and design redundancy.
  • the working band is [ ⁇ -10nm, ⁇ +10nm]
  • the sideband band is [ ⁇ -16nm, ⁇ -10nm), and ( ⁇ +10nm, ⁇ +16nm].
  • the wavelength within the sideband band is light energy without digital signals, which is only a 0-level signal without a modulation signal.
  • the BOSA bi-directional optical sub-assembly
  • the WDM Widelength Division Multiplexing
  • the optical signal in the sideband band sent by the optical link is filtered according to the filter configured at each optical link output port for a specific wavelength in the sideband band (since the wavelength in the sideband band does not carry a digital signal, or does not carry business information, the wavelength in the sideband band is filtered without any impact on the signal quality of the entire business optical signal).
  • the filter configured at each optical link output port is different, and different filters form different coding combinations for the transmittance ratio of the sideband wavelengths in the sideband band, so that the optical signal transmitted from each optical link output port has different power coding combinations, wherein the power coding combination is the coding combination formed by the power ratio of different sideband wavelengths in the sideband band, and then the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified according to the power coding combination of the optical signal transmitted from the optical fiber of different branch ports.
  • the embodiment of the present application provides a method for causing fluctuations in the downstream receiving power on the ONU side by using the passband sideband effect of the receiving filter at the ONU end. This method does not require the deployment of expensive equipment required for optical amplification, nor does it require changes in the ONU design.
  • the embodiment of the present application can continue to use the hardware structure of the optical splitter and ONU in the original optical network system, without the need to design and adopt remote pump amplification technology on the optical splitter side, and without changing the original ONU structure design to add a receiver that can receive non-service wavelength signals, thereby achieving accurate identification of the port of the optical splitter connected to the ONU on the basis of reducing the cost of ODN.
  • different ONUs are connected to different ODN branch ports, and different wavelength and reflectivity or transmittance coding combinations are designed for different branch ports.
  • the power of the optical signal received by the ONU's BOSA is different, and different power sizes correspond to the design of the port reflectivity or transmittance. Therefore, the combined sent wavelength and the power size received by the ONU's BOSA can correspond to the preset wavelength and reflectivity or transmittance coding of the port, so that the optical link output port of the optical link splitter to which the ONU is connected can be located.
  • the step of determining the optical link output port of the optical splitter connected to the ONU according to the power coding combination includes:
  • Step A10 determining first link port information of the power coding combination mapping based on a first preset mapping relationship, and determining an optical link output port of the optical splitter connected to the ONU according to the first link port information.
  • the first preset mapping relationship has a mapping relationship between each power coding combination and the first link port information. Different power coding combinations map different first link port information. It can be understood that the first preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • This embodiment determines the first link port information of the power coding combination mapping based on the first preset mapping relationship, and accurately determines the optical link output port of the optical splitter to which the ONU is connected according to the first link port information.
  • the step of determining the optical link output port of the optical splitter to which the ONU is connected according to the power coding combination comprises:
  • Step B10 respectively calculating the difference between the power coding combination and the power of the target coding combination belonging to the same sideband wavelength to obtain a difference coding combination.
  • the target coding combination is a coding combination formed by the power ratio of different sideband wavelengths in the sideband band in the optical signal input to the optical link input port of the optical splitter.
  • the target coding combination is the coding combination formed by the power ratio of different sideband wavelengths of the input optical signal in the sideband band, wherein the input optical signal is the optical signal of the filter configured for the output port of the optical link.
  • the difference coding combination is the coding combination obtained by taking the difference between the power of the input optical signal and the output optical signal for the same sideband wavelength.
  • the output optical signal is the optical signal output from the filter configured for the output port of the optical link.
  • the difference coding combination can be used to characterize the filtering properties of the filter for filtering a specific wavelength, for example, it can be specifically characterized as the energy filtering ratio (or transmittance) of the filter for each wavelength in the sideband band.
  • Step B20 determining the second link port information of the difference coding combination mapping based on the second preset mapping relationship, and determining the optical link output port of the optical splitter connected to the ONU according to the second link port information.
  • the second preset mapping relationship has a mapping relationship between each difference code combination and the second link port information. Different difference code combinations map different second link port information. It can be understood that the second preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • This embodiment determines the second link port information of the difference coding combination mapping based on the second preset mapping relationship, and accurately locates the optical link output port of the optical splitter connected to the ONU according to the second link port information.
  • the step of determining the optical link output port of the optical splitter to which the ONU is connected according to the power coding combination comprises:
  • Step C10 acquiring the power of the target sideband wavelength in the power coding combination, and determining the third link port information of the power mapping of the target sideband wavelength based on a third preset mapping relationship;
  • Step C20 determining the optical link output port of the optical splitter to which the ONU is connected according to the third link port information.
  • the third preset mapping relationship has a mapping relationship between each power of the target sideband wavelength and the third link port information. Among them, different powers of the target sideband wavelength are mapped to different third link port information. It can be understood that the third preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • different optical link output ports have different transmittances for the target sideband wavelength.
  • the filters configured for different optical link output ports have different filtering ratios for the target sideband wavelength, so that the power of the target sideband wavelength transmitted from each optical link output port is different, and then the power of the target sideband wavelength in the power coding combination can be obtained, and based on the third preset mapping relationship, the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified.
  • the step of determining the optical link output port of the optical splitter to which the ONU is connected according to the power coding combination comprises:
  • Step D10 obtaining the power of the target sideband wavelength in the power coding combination, and calculating the power difference between the power of the target sideband wavelength and the target power.
  • optical link output ports have different transmittances for the target sideband wavelength.
  • filters configured at different optical link output ports have different filtering ratios for the target sideband wavelength, so that the power of the target sideband wavelength transmitted from each optical link output port is different.
  • the target power is the power of the target sideband wavelength in the optical signal input to the optical link input port of the optical splitter.
  • the target power is also the power of the target sideband wavelength of the input optical signal, wherein the input optical signal is the optical signal of the filter configured for the optical link output port.
  • the power difference is the power value obtained by taking the difference between the power of the input optical signal and the output optical signal for the target sideband wavelength.
  • the output optical signal is the optical signal output from the filter configured for the optical link output port. It is easy to understand that the power difference can be used to characterize the filtering properties of the filter for filtering the target sideband wavelength, for example, it can be specifically characterized as the energy filtering ratio (or transmittance) of the filter for the target sideband wavelength.
  • Step D20 determining fourth link port information of the power difference mapping based on a fourth preset mapping relationship, and determining an optical link output port of the optical splitter to which the ONU is connected according to the fourth link port information.
  • the fourth preset mapping relationship has a one-to-one mapping relationship between each power difference value and the fourth link port information. Different power difference values are mapped to different fourth link port information. It can be understood that the fourth preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • the embodiment of the present application obtains the power of the target sideband wavelength in the power coding combination, calculates the power difference between the power of the target sideband wavelength and the target power, and determines the fourth link port information mapped by the power difference based on the fourth preset mapping relationship, and then accurately determines the optical link output port of the splitter connected to the ONU based on the fourth link port information.
  • the embodiment of the present application discloses a method for causing fluctuations in downstream received power on the ONU side by utilizing the passband sideband effect of a receiving filter at the ONU end.
  • the method does not require the deployment of expensive equipment required for optical amplification, nor does it require changes in the ONU design.
  • the ONU optical path design includes a 0-degree filter.
  • the design of the 0-degree filter is generally slightly wider than the passband of the standard rule according to the production process, as shown in FIGS. 4 and 5 .
  • the signal will also be received, thereby increasing the DC component of the service signal, thereby causing changes in the received power on the ONU side.
  • the AC coupling will not affect the judgment of the service signal.
  • Figure 2 is a schematic diagram of the architecture of the PON network system in the embodiment of the present application.
  • the design of the OLT can be used to control the WDM laser to emit different wavelengths in several channel sidebands, so that the passband sideband effect of the receiving filter at the ONU end is combined with the branch port with different reflectance ratios at the ODN end to form different power fluctuations at different branch ports.
  • the branch link port information to which the specified ONU is connected is identified through the different power change values received after the ONU end responds to the OLT transmission.
  • the embodiment of the present application makes use of the extended sideband effect of the filter of the PON (passive optical network) ONU BOSA (bi-directional optical sub-assembly) ingeniously, and does not need to use remote pump amplification technology on the splitter side design, and does not need to change the original ONU structure design to add a receiver that can receive non-service wavelength signals, and does not need to increase the overall cost by wavelength shifting or adding gain components, so that the port of the splitter connected to the ONU can be accurately identified on the basis of reducing the cost of ODN. And there is no interference to the service signal, and the lossless upgrade improves the efficiency of network intelligent management.
  • the embodiment of the present application designs a method for realizing ONU (optical network unit) power disturbance in a PON network.
  • the method is based on the sideband band of the passband range of the receiving 0-degree filter of the ONU BOSA of the PON system.
  • the sideband band can be received by the ONU receiving system through the 0-degree filter, as shown in FIG3 , thereby increasing the DC component of the ONU (optical network unit) receiving signal, thereby realizing the disturbance of the receiving signal power.
  • the downlink service signal passband is 4 to 6nm on both sides.
  • the OLT TX service signal wavelength is ⁇ 10nm
  • the sideband signal operating wavelength is ⁇ -16nm ⁇ -10nm& ⁇ +10nm ⁇ +16nm.
  • the above-mentioned receiving signal is received by the ONU BOSA module, which does not need to be modified.
  • the filter can not only 100% transmit the OLT (optical line terminal) TX transmitter working wavelength ⁇ 10nm, but also 100% transmit the entire filter band of ⁇ 14nm or ⁇ 16nm due to the transition band of the filter coating and design redundancy.
  • the above-mentioned receiving signal is sent by the OLT side.
  • the sending module uses a laser or multiple laser arrays or wavelength tuning technology to support the selection of one or more wavelengths in the sideband band to send optical signals without data modulation, and then reaches the ONU BOSA module through the optical network after being combined with the downlink service optical signal.
  • the sending module can be integrated in the OLT optical module, or an independent board or independent device.
  • PON ODN is a typical passive point-to-multipoint method
  • each different ONU in order to be able to identify the link port information to which the specified ONU is connected, combined with the design of the splitter in the optical network and the above-mentioned ONU power disturbance method, each different ONU generates different power disturbances.
  • the port information where the ONU is located can be identified.
  • an embodiment of the present application further provides an optical network system, including an optical distribution network and an optical network unit ONU, wherein the optical distribution network includes a filter and N-level optical splitters, where N is a positive integer;
  • Each level of the N-level optical splitter includes at least one optical splitter, and the optical splitter includes M optical link output ports, at least M-1 optical link output ports among the M optical link output ports are correspondingly configured with different filters, and each optical link output port is correspondingly connected to one ONU, wherein M is an integer greater than one;
  • the transmittance coding combination is a coding combination formed by transmittance ratios for different wavelengths within the passband range of the filter in the ONU.
  • M is equal to 5, and at least 4 of the 5 optical link output ports are configured with filters, and the filters configured for each optical link output port have different transmittance coding combinations for optical signals.
  • M is equal to 8, and at least 7 of the 8 optical link output ports are configured with filters, and the filters configured for each optical link output port have different transmittance coding combinations for optical signals.
  • This embodiment does not make specific limitations on this. It is easy to understand that in this embodiment, it is not necessary to configure filters for all optical link output ports.
  • One of the optical link output ports may not be provided with a filter, that is, 100% transmission is performed for all wavelengths, while the remaining optical link output ports may be provided with different filters (different filters have different transmittance coding combinations for optical signals).
  • the optical link output ports configured with filters to have different energy filtering ratios (or transmittance ratios) for specific wavelengths, or to have energy filtering for different wavelengths (the filtering ratios corresponding to energy filtering for different wavelengths may be the same or different. When the energy filtering ratios are the same, the energy filtering ratios are not 0% filtering or 100% transmission).
  • the optical signal transmitted from each optical link output port to have different power coding combinations, wherein the power coding combination refers to a coding combination formed by the power ratios of different wavelengths in the optical signal.
  • filter A is set at optical link output port 1, then the optical signal incident on optical link output port 1 and transmitted through filter A, at this time, the power coding combination of the optical signal should be mapped to the transmittance coding combination a corresponding to filter A.
  • the power coding combination mapped to the transmittance coding combination a is S 1
  • the power coding combination of the optical signal transmitted by the optical fiber received by a certain optical network unit M 1 is S 1
  • it can be determined that the branch link port to which the optical network unit M 1 is connected on the splitter is the optical link output port 1.
  • filter B is set at the optical link output port 2, then the power coding combination of the optical signal incident on the optical link output port 2 and transmitted through filter B should be mapped to the transmittance coding combination b corresponding to filter B.
  • the power coding combination mapped by the transmittance coding combination b is S 2
  • the power coding combination of the optical signal transmitted by the optical fiber received by a certain optical network unit M 2 is S 2
  • it can be determined that the branch link port to which the optical network unit M 2 is connected on the splitter is the optical link output port 2.
  • At least M-1 optical link output ports among the M optical link output ports are configured with filters, wherein the filters configured for each optical link output port have different transmittance coding combinations for optical signals, so that when the optical signal incident to the splitter is split to each optical link output port, the filters configured for each optical link output port have different energy filtering ratios (or transmittance ratios) for specific wavelengths, or there is energy filtering for different wavelengths (the filtering ratios corresponding to energy filtering for different wavelengths may be the same or different), so that the optical signals transmitted from each optical link output port have different power coding combinations, and then the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified according to the power coding combinations of the optical signals transmitted from the optical fibers of different branch ports.
  • the optical splitter of the embodiment of the present application may be an optical splitter including N levels, wherein N may be one or an integer greater than or equal to two, and this embodiment does not make specific limitations. It should be noted that the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the same level of optical splitter is different.
  • the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the Kth level optical splitter is different from the transmittance coding combination configured for the optical signal corresponding to any optical link output port of the Hth level optical splitter, and H and K are both positive integers, wherein the Kth level optical splitter and the Hth level optical splitter are any two levels of the N-level optical splitter.
  • the embodiment of the present application can determine which optical link output port in which level of splitter the optical network terminal is connected to based on the power coding combination of the optical signal transmitted from the optical fiber of different branch ports, thereby accurately identifying the branch link port information to which the specified optical network unit is connected on the splitter, thereby solving the problem of link information identification connected to the ONU in the passive ODN network of the PON network, and can be used for dynamic visualization management of ODN resources.
  • the present application proposes an optical network system, including an optical distribution network and an optical network unit (ONU), wherein the optical distribution network includes a filter and N-level splitters, where N is a positive integer, wherein each level of the N-level splitters includes at least one splitter, and the splitter includes M optical link output ports, wherein at least M-1 of the M optical link output ports are correspondingly configured with different filters, and each optical link output port is correspondingly connected to an ONU, and M is an integer greater than one, wherein different filters have different transmittance coding combinations for optical signals, and the transmittance coding combination is a coding combination formed by the transmittance ratio for different wavelengths within the passband range of the filter in the ONU, so that the embodiment of the present application utilizes the passband sideband effect of the filter to combine branch ports with different reflectances at the optical network unit (ONU) end and the optical distributed network (ODN) end, so as to form different power change relationships (i.e., power coding combinations) for different branch ports, thereby facilitating
  • the embodiment of the present application can continue to use the hardware structure of the splitter and ONU in the original optical network system, without the need to design and adopt remote pump amplification technology on the splitter side, and without changing the original ONU structure design to add a receiver that can receive non-business wavelength signals, thereby achieving accurate identification of the port of the splitter connected to the ONU while reducing the cost of ODN.
  • the optical network system further includes an optical line terminal; the optical line terminal is used to: receive the power coding combination from the ONU; and determine the optical link output port of the optical splitter to which the ONU is connected based on the power coding combination.
  • the optical line terminal may determine the first link port information of the power coding combination mapping based on the first preset mapping relationship, and determine the optical link output port of the optical splitter connected to the ONU according to the first link port information.
  • the first preset mapping relationship has a mapping relationship between each power coding combination and the first link port information. Different power coding combinations map different first link port information. It can be understood that the first preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • This embodiment determines the first link port information of the power coding combination mapping based on the first preset mapping relationship, and accurately determines the optical link output port of the optical splitter to which the ONU is connected according to the first link port information.
  • the passband range includes an operating band of the service light and sideband bands distributed on both sides of the operating band
  • the transmittance coding combination is a coding combination formed by a transmittance ratio for different sideband wavelengths within the sideband band, wherein the filter is fully transmittive for the operating wavelengths within the operating band.
  • the ONU is used to respectively determine the power coding combination of the optical signal from the optical distribution network, wherein the power coding combination is a coding combination formed by the power ratio of different sideband wavelengths in the sideband band, and the transmittance coding combination is mapped one-to-one with the power coding combination;
  • the power coding combination is used to determine the optical link output port of the optical splitter to which the ONU is connected.
  • the working band of the service light refers to the band range corresponding to the working wavelength of the service light, which can be specifically based on the working wavelength and the first preset wavelength floating up and down.
  • the passband range of the filter Due to the filter coating transition band and design redundancy of the filter in the optical network unit ONU, the passband range of the filter, on the basis of covering the working band, reserves a part of the band above and below the working band, which can be specifically based on the working band and the second preset wavelength floating up and down.
  • the second preset wavelength range (that is, the reserved band) that floats up and down is the sideband band, which refers to the other band ranges in the passband range of the filter except the working band, and the sideband band is located on both sides of the working band.
  • the filter in the optical network unit ONU can not only transmit 100% of the working wavelength ⁇ 10nm of the TX (Transmitter) transmitting end of the OLT (10nm is the first preset wavelength at this time), but also transmit 100% of the entire filter band of ⁇ 14nm due to the transition band of the filter coating and design redundancy.
  • the working band is [ ⁇ -10nm, ⁇ +10nm]
  • the sideband band is [ ⁇ -14nm, ⁇ -10nm), and ( ⁇ +10nm, ⁇ +14nm].
  • the wavelength within the sideband band is light energy without digital signals, which is only a 0-level signal without a modulation signal.
  • the filter in the optical network unit ONU can not only transmit the working wavelength ⁇ 10nm of the TX (Transmitter) transmitting end of the OLT 100% (10nm is the first preset wavelength at this time), but also transmit the entire filter band of ⁇ 16nm 100% due to the transition band of the filter coating and design redundancy.
  • the working band is [ ⁇ -10nm, ⁇ +10nm]
  • the sideband band is [ ⁇ -16nm, ⁇ -10nm), and ( ⁇ +10nm, ⁇ +16nm].
  • the wavelength within the sideband band is light energy without digital signals, which is only a 0-level signal without a modulation signal.
  • the BOSA bi-directional optical sub-assembly
  • the WDM Widelength Division Multiplexing
  • the optical signal in the sideband band sent by the optical link is filtered according to the filter configured at each optical link output port for a specific wavelength in the sideband band (since the wavelength in the sideband band does not carry a digital signal, or does not carry business information, the wavelength in the sideband band is filtered without any impact on the signal quality of the entire business optical signal).
  • the filter configured at each optical link output port is different, and different filters form different coding combinations for the transmittance ratio of the sideband wavelengths in the sideband band, so that the optical signal transmitted from each optical link output port has different power coding combinations, wherein the power coding combination is the coding combination formed by the power ratio of different sideband wavelengths in the sideband band, and then the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified according to the power coding combination of the optical signal transmitted from the optical fiber of different branch ports.
  • the embodiment of the present application provides a method for causing fluctuations in the downstream receiving power on the ONU side by using the passband sideband effect of the receiving filter at the ONU end. This method does not require the deployment of expensive equipment required for optical amplification, nor does it require changes in the ONU design.
  • the embodiment of the present application can continue to use the hardware structure of the optical splitter and ONU in the original optical network system, without the need to design and adopt remote pump amplification technology on the optical splitter side, and without changing the original ONU structure design to add a receiver that can receive non-service wavelength signals, thereby achieving accurate identification of the port of the optical splitter connected to the ONU on the basis of reducing the cost of ODN.
  • different ONUs are connected to different ODN branch ports, and different wavelength and reflectivity or transmittance coding combinations are designed for different branch ports.
  • the power of the optical signal received by the ONU's BOSA is different, and different power sizes correspond to the design of the port reflectivity or transmittance. Therefore, the combined sent wavelength and the power size received by the ONU's BOSA can correspond to the preset wavelength and reflectivity or transmittance coding of the port, so that the optical link output port of the optical link splitter to which the ONU is connected can be located.
  • the optical network system also includes an adjustable wavelength laser
  • the optical line terminal is further used to: receive the power coding combination from the ONU; respectively subtract the power coding combination from the power belonging to the same sideband wavelength in the target coding combination to obtain a difference coding combination
  • the target coding combination is a coding combination formed by the power ratio of different sideband wavelengths in the sideband band in the optical signal emitted by the adjustable wavelength laser to the optical link input port of the splitter; based on a second preset mapping relationship, determine the second link port information mapped by the difference coding combination, and determine the optical link output port of the splitter connected to the ONU according to the second link port information.
  • the target coding combination is a coding combination formed by the power ratio of different sideband wavelengths in the sideband band in the optical signal input to the optical link input port of the optical splitter.
  • the target coding combination is the coding combination formed by the power ratio of different sideband wavelengths of the input optical signal in the sideband band, wherein the input optical signal is the optical signal of the filter configured for the output port of the optical link.
  • the difference coding combination is the coding combination obtained by taking the difference between the power of the input optical signal and the output optical signal for the same sideband wavelength.
  • the output optical signal is the optical signal output from the filter configured for the output port of the optical link.
  • the difference coding combination can be used to characterize the filtering properties of the filter for filtering a specific wavelength, for example, it can be specifically characterized as the energy filtering ratio (or transmittance) of the filter for each wavelength in the sideband band.
  • the second preset mapping relationship has a mapping relationship between each difference code combination and the second link port information. Different difference code combinations map different second link port information. It can be understood that the second preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • This embodiment determines the second link port information of the difference coding combination mapping based on the second preset mapping relationship, and accurately locates the optical link output port of the optical splitter connected to the ONU according to the second link port information.
  • the optical line terminal is further used to: receive the power coding combination from the ONU; obtain the power of the target sideband wavelength in the power coding combination, and determine the third link port information of the power mapping of the target sideband wavelength based on a third preset mapping relationship; and determine the optical link output port of the splitter to which the ONU is connected according to the third link port information.
  • the third preset mapping relationship has a mapping relationship between each power of the target sideband wavelength and the third link port information. Among them, different powers of the target sideband wavelength are mapped to different third link port information. It can be understood that the third preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • different optical link output ports have different transmittances for the target sideband wavelength.
  • the filters configured for different optical link output ports have different filtering ratios for the target sideband wavelength, so that the power of the target sideband wavelength transmitted from each optical link output port is different, and then the power of the target sideband wavelength in the power coding combination can be obtained, and based on the third preset mapping relationship, the branch link port information to which the specified optical network unit is connected on the splitter can be accurately identified.
  • the optical network system further comprises a tunable wavelength laser
  • the optical line terminal is further used for:
  • optical link output ports have different transmittances for the target sideband wavelength.
  • filters configured at different optical link output ports have different filtering ratios for the target sideband wavelength, so that the power of the target sideband wavelength transmitted from each optical link output port is different.
  • the target power is the power of the target sideband wavelength in the optical signal input to the optical link input port of the optical splitter.
  • the target power is also the power of the target sideband wavelength of the input optical signal, wherein the input optical signal is the optical signal of the filter configured for the optical link output port.
  • the power difference is the power value obtained by taking the difference between the power of the input optical signal and the output optical signal for the target sideband wavelength.
  • the output optical signal is the optical signal output from the filter configured for the optical link output port. It is easy to understand that the power difference can be used to characterize the filtering properties of the filter for filtering the target sideband wavelength, for example, it can be specifically characterized as the energy filtering ratio (or transmittance) of the filter for the target sideband wavelength.
  • the fourth preset mapping relationship has a one-to-one mapping relationship between each power difference value and the fourth link port information. Different power difference values are mapped to different fourth link port information. It can be understood that the fourth preset mapping relationship can be pre-stored in the system of the electronic device that is the execution subject of the embodiment of the present application.
  • the embodiment of the present application obtains the power of the target sideband wavelength in the power coding combination, calculates the power difference between the power of the target sideband wavelength and the target power, and determines the fourth link port information mapped by the power difference based on the fourth preset mapping relationship, and then accurately determines the optical link output port of the splitter connected to the ONU according to the fourth link port information.
  • ⁇ 1 ⁇ 2 of the two WDM lasers are accurate to ⁇ 0.2nm
  • the working wavelength of the GPON (Gigabit-capable passive optical networks) OLT TX transmitter is 1490 ⁇ 10nm
  • the wavelength of the XGS (Xgigabit-capable passive optical networks) PON TX end is 1575 ⁇ 1581nm.
  • ⁇ 1 is within the receiving passband extension band range of the terminal GPON (Gigabit-capable passive optical networks) ONU.
  • the insertion loss of the GPON ONU BOSA receiving the ⁇ 1 optical signal is less than 0.3dB (7%), and 1473nm ⁇ 1 ⁇ 1480nm or 1500nm ⁇ 1 ⁇ 1507nm.
  • the insertion loss of XGS PON ONU BOSA for receiving ⁇ 2 optical signal is less than 0.3dB (7%), and 1571nm ⁇ 2 ⁇ 1575nm or 1581nm ⁇ 2& ⁇ 4 ⁇ 1588nm.
  • the ODN end uses an equal splitting ratio or an unequal splitting ratio splitter (the splitter can be 1:2, 1:4 or 1:8), and can appear in a cascade form.
  • Each splitter is equipped with a GPON (Gigabit Passive Optical Network) ONU or XGS PON ONU wavelength filter structure design, and at least one splitter branch has the function of filtering the energy of ⁇ 1& ⁇ 2 wavelengths or designing the transmittance ratio.
  • GPON OLT TX end is working and emitting 1490 ⁇ 10nm service optical signals, and the WDM laser is not turned on
  • each ODN end branch transmits 100% of the service wavelength signal and is received by each branch GPON ONU.
  • Each GPON ONU responds to the received optical signal energy as P0 and records it in the ONU's MCU (Microcontroller Unit) address table.
  • MCU Microcontroller Unit
  • the transmittance of the GPON ONU BOSA of each output branch fiber for this wavelength is 100%. Since the transmittance of each branch fiber for a specific wavelength is different, the response gain of each ONU end is also different. In this state, the response power of each GPON ONU is P1, which is recorded in another address of the ONU MCU. Finally, through the change of ⁇ P-GPONi and the encoding method uploaded to the OLT, the system can identify the optical link status of the GPON ONU mounted under each optical fiber.
  • the power gain change ⁇ XGSPON (passive optical network) i and the encoding method generated by the ⁇ 2 wavelength optical signal on the XGSP-PON ONU BOSA are uploaded to the OLT, and the system can identify the optical link status of the GPON ONU mounted under each optical fiber.
  • the two independent lasers can also be adjustable lasers.
  • the operating wavelengths ⁇ 1 ⁇ 8 of the eight WDM lasers have an accuracy of ⁇ 0.2nm
  • the operating wavelength of the GPON OLT TX transmitter is 1490 ⁇ 10nm
  • the wavelength of the XGS PON TX end is 1575 ⁇ 1581nm.
  • ⁇ 1& ⁇ 2& ⁇ 5& ⁇ 6 are all within the receiving passband extension range of the terminal GPON ONU.
  • the insertion loss of GPON ONU BOSA for receiving ⁇ 1& ⁇ 2& ⁇ 5& ⁇ 6 optical signals is less than 0.3dB (7%), and 1473nm ⁇ 1& ⁇ 2& ⁇ 5& ⁇ 6 ⁇ 1480nm or 1500nm ⁇ 1& ⁇ 2& ⁇ 5& ⁇ 6 ⁇ 1507nm.
  • the insertion loss of XGS PON ONU BOSA for receiving ⁇ 3& ⁇ 4& ⁇ 7& ⁇ 8 optical signals is less than 0.3dB (7%), and 1571nm ⁇ 3& ⁇ 4& ⁇ 7& ⁇ 8 ⁇ 1575nm or 1581nm ⁇ 3& ⁇ 4& ⁇ 7& ⁇ 8 ⁇ 1588nm.
  • the ODN end uses a splitter with equal or unequal splitting ratio (the splitter can be 1:2, 1:4 or 1:8), and can appear in cascade form.
  • Each splitter is equipped with a GPON ONU or XGS PON ONU wavelength filter structure design, and at least one splitter branch has the function of filtering the ⁇ 1 ⁇ 8 wavelength energy or transmittance design.
  • each ODN end branch transmits 100% of the service wavelength signal and is received by each branch GPON ONU.
  • Each GPON ONU responds to the received optical signal energy as P0 and records it in the ONU's MCU address table.
  • the transmittance of the GPON ONU BOSA of each output branch fiber is 100% for this wavelength. Since the transmittance of each branch fiber for a specific wavelength is different, the response gain of each ONU is also different. In this state, the response power of each GPON ONU is P1, which is recorded in another address of the ONU MCU. Finally, through the change of ⁇ P-GPONi and the encoding method uploaded to the OLT, the system can identify the optical link status of the GPON ONU mounted under each fiber.
  • the power gain change ⁇ P-XGSPONi and the encoding method of the ⁇ 3& ⁇ 4& ⁇ 7& ⁇ 8 wavelength optical signal on the XGS PON ONU BOSA are uploaded to the OLT, and the system can identify the optical link status of the GPON ONU mounted under each optical fiber.
  • the eight independent lasers can also be tunable lasers.
  • FIG6 is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application.
  • the electronic device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005.
  • the communication bus 1002 is used to realize the connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and in one implementation, the user interface 1003 may also include a standard wired interface and a wireless interface.
  • the network interface 1004 may include a standard wired interface and a wireless interface (such as a wireless fidelity (WIreless-FIdelity, WI-FI) interface).
  • the memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory.
  • the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .
  • the structure shown in FIG6 does not limit the electronic device, and may include more or fewer components than shown, or combine certain components, or arrange components differently.
  • the memory 1005 as a readable storage medium may include an operating system, a data storage module, a network communication module, a user interface module, and a port identification program for an optical splitter.
  • the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in this embodiment can be set in the communication device, and the communication device calls the port identification program of the splitter stored in the memory 1005 through the processor 1001, and executes the port identification method applied to the splitter provided in any of the above embodiments.
  • the terminal proposed in this embodiment and the port identification method applied to the splitter proposed in the above embodiment belong to the same inventive concept.
  • the technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as the port identification method for executing the splitter.
  • an embodiment of the present application also proposes a computer-readable storage medium, which may be a non-volatile computer-readable storage medium, on which a port identification program of a splitter is stored, and when the port identification program of the splitter is executed by a processor, the port identification method of the splitter of the present application as described above is implemented.
  • the various embodiments of the electronic device and the computer-readable storage medium of the present application may all refer to the various embodiments of the port identification method of the optical splitter of the present application, which will not be described in detail here.
  • the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling an electronic device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as ROM/RAM, magnetic disk, optical disk
  • an electronic device which can be a mobile phone, computer, server, air conditioner, or network device, etc.

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Abstract

本申请公开了一种分光器的端口识别方法、光网络系统、电子设备及介质，属于通信技术领域。本申请通过获取来自光分配网络的光信号，并确定光信号的功率编码组合，其中，功率编码组合为在光网络单元ONU中滤波片的通带范围内，针对不同波长的功率配比所形成的编码组合，透射率编码组合与功率编码组合一一映射，透射率编码组合为在ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合；根据功率编码组合，确定ONU连接的分光器的光链路输出端口。

Description

分光器的端口识别方法、光网络系统、电子设备及介质
交叉引用
本申请要求在2023年12月04日提交中国专利局、申请号为202311656483.6、发明名称为“分光器的端口识别方法、光网络系统、电子设备及介质”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及分光器的端口识别方法、光网络系统、电子设备及介质。
背景技术
随着光纤通信技术的发展，无源光网络(Passive Optical Network，PON)得到快速的发展与大规模部署。PON是点对多点的系统，由光线路终端(Optical Line Terminal，OLT)、光分配网络(Optical Distribution Network，ODN)和ONU(optical network unit，光网络单元)顺序连接构成。其中，ODN是无源光网络，全部由无源器件组成，主要包括光纤和分光器(Splitter)。由于ODN通过点对点的连接方法实现光信号从OLT至ONU的传输，有着覆盖地域广泛、分支光路数据庞大、场景复杂等特点，再加上其自身没有供电，造成了ODN的故障定位排查困难，故障定位的准确率尤为重要，而要实现故障定位，就需要准确的识别出ONT在ODN中连接的端口。
无源PON(passive optical network，无源光网络)中为了获取ONU(optical network unit，光网络单元)连接的实际链路端口信息，需要采集ONU侧信息进行联动，按ONU光路设计采集信息需由ONU侧下行接收功率，或采用ONU侧非业务波长接收功率。为采集上述信息，相关技术中采用的技术方案为：
(1)在分光器侧设计采用遥泵放大技术，但该方法涉及掺杂或拉曼等光放大技术，其设计成本也非常昂贵，提升了ODN的成本。
(2)改变ONU设计新增可接收非业务波长信号的接收机，但该方法需要改变ONU的原因设计，增加了ONU的硬件成本，同样导致提升了ODN的成本。
发明内容
本申请的主要目的在于提供一种分光器的端口识别方法、光网络系统、电子设备及介质。
本申请提供一种分光器的端口识别方法，所述分光器包括M个光链路输出端口，各个光链路输出端口针对光信号对应配置的透射率编码组合不同，其中，所述M为大于一的整数，包括：获取来自光分配网络的光信号，并确定所述光信号的功率编码组合，其中，所述功率编码组合为在光网络单元ONU中滤波片的通带范围内，针对不同波长的功率配比所形成的编码组合，所述透射率编码组合与所述功率编码组合一一映射，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合；根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口。
本申请还提供一种光网络系统，包括光分配网络和光网络单元ONU，所述光分配网络包括滤波器和N级分光器，所述N为正整数；所述N级分光器中的每级分光器包括至少一个分光器，所述分光器包括M个光链路输出端口，所述M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有不同的所述滤波器，且每个光链路输出端口对应连接一个所述ONU，其中，所述M为大于1的整数；其中，不同的所述滤波器针对光信号的透射率编码组合不同，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合。
本申请还提供一种电子设备，所述电子设备包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的分光器的端口识别程序，所述分光器的端口识别程序被所述处理器执行时实现如上述的分光器的端口识别方法。
本申请还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有分光器的端口识别程序，所述分光器的端口识别程序被处理器执行时实现如上述的分光器的端口识别方法。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请分光器的端口识别方法第一实施例的流程示意图；
图2为本申请实施例中PON网络系统的架构示意图；
图3为本申请实施例中光网络单元的结构示意图；
图4为本申请实施例中光网络单元的接收功率变化示意图；
图5为本申请实施例中分光器针对各个光链路输出端口的滤波属性设计示意图；
图6为本申请实施例方案涉及的电子设备的硬件结构示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
另外，在本申请中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
目前，无源PON(passive optical network，无源光网络)中为了获取ONU(optical network unit，光网络单元)连接的实际链路端口信息，需要采集ONU侧信息进行联动，按ONU光路设计采集信息需由ONU侧下行接收功率，或采用ONU侧非业务波长接收功率。为采集上述信息，相关技术中采用的技术方案为：
(1)在分光器侧设计采用遥泵放大技术，但该方法涉及掺杂或拉曼等光放大技术，其设计成本也非常昂贵，提升了ODN的成本。
(2)改变ONU设计新增可接收非业务波长信号的接收机，但该方法需要改变ONU的原因设计，增加了ONU的硬件成本，同样导致提升了ODN的成本。
基于此，本申请实施例提供了一种分光器的端口识别方法，参照图1，图1为本申请一种分光器的端口识别方法一实施例的流程示意图。本实施例中，所述分光器包括M个光链路输出端口，各个光链路输出端口针对光信号对应配置的透射率编码组合不同，其中，所述M为大于一的整数，包括：
步骤S100，获取来自光分配网络的光信号，并确定所述光信号的功率编码组合，其中，所述功率编码组合为在光网络单元ONU中滤波片的通带范围内，针对不同波长的功率配比所形成的编码组合，所述透射率编码组合与所述功率编码组合一一映射。
在本实施例中，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合。
示例性地，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有滤波器，且各个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。
在一实例中，M等于5，此时这5个光链路输出端口中至少存在4个光链路输出端口对应配置有滤波器，且每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。在另一实例中，M等于8，则这8个光链路输出端口中至少存在7个光链路输出端口对应配置有滤波器，且每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。本实施例对此不作具体的限定。容易理解的是，本实施例不必所有光链路输出端口均配置滤波器，可通过将其中一个光链路输出端口不设置滤波器，即对所有波长进行100％透射，而剩下的其他光链路输出端口设置不同的滤波器(不同的滤波器针对光信号的透射率编码组合不同)，从而可使得配置有滤波器的光链路输出端口针对特定波长的能量滤波比(或者称为透射比)不同，或者针对不同波长存在能量滤波(不同波长存在能量滤波对应的滤波比可为相同，也可为不同，在能量滤波比相同时，该能量滤波比不为0％滤波或者说不为100％透射)，进而可实现每个光链路输出端口透射出来的光信号存在不同的功率编码组合，其中，该功率编码组合是指光信号中不同波长的功率配比所形成的编码组合。
步骤S100之后，执行步骤S200，根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口。
为了助于理解，在一示例中，在光链路输出端口1设置滤波器A，那么入射至光链路输出端口1且经过滤波器A所透射出来的光信号，此时该光信号的功率编码组合应该是与滤波器A对应的透射率编码组合a是映射的，例如透射率编码组合a映射的功率编码组合为S1，那么在某个光网络单元M1接收到光纤所传输光信号的功率编码组合为S1，则可确定该光网络单元M1在分光器上所连接的分支链路端口为光链路输出端口1。在另一示例中，在光链路输出端口2设置滤波器B，那么入射至光链路输出端口2且经过滤波器B所透射出来的光信号，此时该光信号的功率编码组合应该是与滤波器B对应的透射率编码组合b是映射的，例如透射率编码组合b映射的功率编码组合为S2，那么在某个光网络单元M2接收到光纤所传输光信号的功率编码组合为S2，则可确定该光网络单元M2在分光器上所连接的分支链路端口为光链路输出端口2。
本实施例通过在M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有滤波器，其中，每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同，从而使得入射至分光器的光信号，在分光至各个光链路输出端口时，被各个光链路输出端口所配置的滤波器对于针对特定波长的能量滤波比(或者称为透射比)不同，或者针对不同波长存在能量滤波(不同波长存在能量滤波对应的滤波比可为相同，也可为不同)，从而使得各个光链路输出端口透射出来的光信号存在不同的功率编码组合，进而可根据不同分支端口的光纤传输过来的光信号的功率编码组合，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
在一种实现方式中，本申请实施例的分光器可为包括N级的分光器，其中，N可为一，也可为大于或等于二的整数，本实施例不作具体的限定。需要说明的是，同一级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合不同。并且在N为大于或等于二的整数时，第K级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合，与第H级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合不同，H和K均为正整数，其中，第K级分光器和第H级分光器为N级分光器中的任意两级。本申请实施例通过该方式，可根据不同分支端口的光纤传输过来的光信号的功率编码组合，确定光网络终端连接的是哪一级分光器中的哪一个光链路输出端口，从而准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息，进而解决PON网络无源ODN网络中ONU所连接的链路信息识别，可用于ODN资源动态可视化管理。
本申请提出一种分光器的端口识别方法、光网络系统、电子设备及介质，在分光器的端口识别方法中，给分光器包括M个光链路输出端口，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有不同的滤波器，不同的滤波器对光信号的透射率编码组合，M为大于1的整数，本申请实施例的技术方案是通过获取来自光分配网络的光信号，并确定光信号的功率编码组合，其中，该功率编码组合为在光网络单元ONU中滤波片的通带范围内，针对不同波长的功率配比所形成的编码组合，该透射率编码组合与功率编码组合一一映射，该透射率编码组合为在ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合，然后再根据该功率编码组合，确定ONU连接的分光器的光链路输出端口，从而使得本申请实施例利用滤波片的通带边带效应，将光网络单元(ONU)端与光分布式网络(ODN)端具备不同反射比的分支端口一起组合，形成不同分支端口不同的功率变化关系(即功率编码组合)，进而便于基于接收到的不同功率变化关系，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
相比于相关技术中对分光器进行的端口识别方案，本申请实施例可以继续沿用原有光网络系统中分光器和ONU的硬件结构，无需在分光器侧设计采用遥泵放大技术，且无需改变原有ONU结构设计新增可接收非业务波长信号的接收机，从而实现了在降低ODN的成本的基础上，准确识别出ONU连接的分光器的端口。
在一种可能的实施方式中，所述通带范围包括业务光的工作波段，以及分布于所述工作波段两侧的边带波段，所述透射率编码组合为针对所述边带波段内不同边带波长的透射率配比所形成的编码组合，所述功率编码组合为针对所述边带波段内不同边带波长的功率配比所形成的编码组合。
在本实施例中，该业务光的工作波段是指业务光的工作波长对应所在的波段范围，具体可为以工作波长为基准，上下浮动第一预设波长。由于光网络单元ONU中滤波片的滤波镀膜过渡带及设计冗余原因，滤波片的通带范围在涵盖该工作波段的基础上，该工作波段往上往下分别额外预留一部分的波段，具体可为以工作波段为基准，上下浮动第二预设波长，该上下浮动的第二预设波长范围(也即所预留的波段)即为边带波段，边带波段是指滤波片的通带范围内除该工作波段之外的其他波段范围，该边带波段位于该工作波段的两侧。为了助于理解，列举两示例。在一示例中，光网络单元ONU中滤波片不仅可对OLT的TX(Transmitter，发射机)发射端的工作波长λ±10nm进行100％透射(此时10nm即为第一预设波长)，由于滤波镀膜过渡带及设计冗余原因，滤波片还对λ±14nm整个滤波带都100％透射。此时工作波段即为【λ-10nm，λ+10nm】，边带波段即为【λ-14nm，λ-10nm)，以及(λ+10nm，λ+14nm】。本领域技术人员可知的是，在边带波段范围内的波长为不带数字信号的光能量，仅为0电平信号，无调制信号。
在另一示例中，光网络单元ONU中滤波片不仅可对OLT的TX(Transmitter，发射机)发射端的工作波长λ±10nm进行100％透射(此时10nm即为第一预设波长)，由于滤波镀膜过渡带及设计冗余原因，滤波片还对λ±16nm整个滤波带都100％透射。此时工作波段即为【λ-10nm，λ+10nm】，边带波段即为【λ-16nm，λ-10nm)，以及(λ+10nm，λ+16nm】。需要说明的是，以上两示例中示出的诸多细节，仅用于理解本申请实施例，并不构成对本申请实施例的限定。本领域技术人员可知的是，在边带波段范围内的波长为不带数字信号的光能量，仅为0电平信号，无调制信号。此时每个ONU的BOSA(bi-directionalopticalsub-assembly，光发射接收组件)不仅接收到OLT(光线路终端)发送工作波段内的下行业务光信号，也会接收到WDM(Wavelength Division Multiplexing，波分复用)激光器或可调激光器发送的边带波段内的光信号，根据各个光链路输出端口所配置的滤波器，对边带波段内的特定波长进行滤波(由于边带波段内的波长不携带数字信号，或者说不携带业务信息，因此边带波段内的波长被过滤，不会对整个业务光信号的信号质量产生任何影响)，每个光链路输出端口所配置的滤波器不同，而不同的滤波器针对边带波段内边带波长的透射率配比所形成的编码组合不同，从而使得从各个光链路输出端口透射出来的光信号存在不同的功率编码组合，其中，该功率编码组合即为该边带波段内不同边带波长的功率配比所形成的编码组合，进而可根据不同分支端口的光纤传输过来的光信号的功率编码组合，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
值得一提的是，本申请实施例通过提供一种利用ONU端接收滤波片的通带边带效应引起ONU侧下行接收功率波动的方法，该方法无需部署昂贵的光放大需要的设备，也不需要改变ONU设计。相比于相关技术中对分光器进行的端口识别方案，本申请实施例可以继续沿用原有光网络系统中分光器和ONU的硬件结构，无需在分光器侧设计采用遥泵放大技术，且无需改变原有ONU结构设计新增可接收非业务波长信号的接收机，从而实现了在降低ODN的成本的基础上，准确识别出ONU连接的分光器的端口。
在本实施例中，不同ONU连接的ODN分支端口不同，同时不同分支端口设计了不同的波长及反射率或透射率编码组合。当发送波长光信号时，引起了ONU的BOSA接收到发送的光信号功率大小不同，而不同的功率大小会对应端口反射率或透射率的设计，因此综合发送的波长及ONU的BOSA接收到的功率大小可对应到端口预设的波长及反射率或透射率编码，从而可定位出ONU所连接的光链路分光器的光链路输出端口。
在一实施例中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
步骤A10，基于第一预设映射关系，确定所述功率编码组合映射的第一链路端口信息，根据所述第一链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该第一预设映射关系中具有各个功率编码组合与第一链路端口信息之间一一映射的映射关系。其中，不同的功率编码组合映射不同的第一链路端口信息。可以理解的是，该第一预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本实施例通过基于第一预设映射关系，确定该功率编码组合映射的第一链路端口信息，并根据该第一链路端口信息，从而准确地确定出ONU连接的分光器的光链路输出端口。
在另一实施例中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
步骤B10，将所述功率编码组合与目标编码组合中属于同一边带波长的功率分别进行求差，得到差值编码组合。
其中，该目标编码组合为在输入至分光器的光链路输入端口的光信号中，所述边带波段内不同边带波长的功率配比所形成的编码组合。该目标编码组合即为输入光信号在边带波段内不同边带波长的功率配比所形成的编码组合，其中，该输入光信号为输入至光链路输出端口所配置的滤波器的光信号。可以理解的是，该差值编码组合即为该输入光信号与输出光信号分别针对同一边带波长的功率分别进行求差，而得到的编码组合。其中，该输出光信号为从光链路输出端口所配置的滤波器中输出的光信号。容易理解的是，该差值编码组合可用于表征该滤波器针对特定波长进行滤波的滤波属性，例如具体可表征为滤波器针对边带波段内各个波长的能量滤波比(或者称为透射比)。
步骤B20，基于第二预设映射关系，确定所述差值编码组合映射的第二链路端口信息，根据所述第二链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该第二预设映射关系中具有各个差值编码组合与第二链路端口信息之间一一映射的映射关系。其中，不同的差值编码组合映射不同的第二链路端口信息。可以理解的是，该第二预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本实施例通过基于该第二预设映射关系，确定该差值编码组合映射的第二链路端口信息，并根据该第二链路端口信息，从而准确地定位出ONU连接的分光器的光链路输出端口。
在又一实施例中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
步骤C10，获取在所述功率编码组合中目标边带波长的功率，基于第三预设映射关系，确定所述目标边带波长的功率映射的第三链路端口信息；
步骤C20，根据所述第三链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该第三预设映射关系中具有目标边带波长的各个功率与第三链路端口信息之间一一映射的映射关系。其中，目标边带波长的不同功率映射不同的第三链路端口信息。可以理解的是，该第三预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
在本实施例中，需要说明的是，不同的光链路输出端口针对该目标边带波长的透射率不同。具体地，不同光链路输出端口所配置的滤波器针对该目标边带波长的滤波比不同，从而使得从各个光链路输出端口透射出来的目标边带波长的功率均不同，进而可获取在功率编码组合中目标边带波长的功率，基于该第三预设映射关系，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
在还一实施例中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
步骤D10，获取在所述功率编码组合中目标边带波长的功率，计算所述目标边带波长的功率与目标功率的功率差值。
需要说明的是，不同的光链路输出端口针对该目标边带波长的透射率不同。具体地，不同光链路输出端口所配置的滤波器针对该目标边带波长的滤波比不同，从而使得从各个光链路输出端口透射出来的目标边带波长的功率均不同。
在本实施例中，该目标功率为在输入至分光器的光链路输入端口的光信号中目标边带波长的功率。该目标功率也即为输入光信号的目标边带波长的功率，其中，该输入光信号为输入至光链路输出端口所配置的滤波器的光信号。该功率差值即为该输入光信号与输出光信号分别针对目标边带波长的功率分别进行求差，而得到的功率值。其中，该输出光信号为从光链路输出端口所配置的滤波器中输出的光信号。容易理解的是，该功率差值可用于表征该滤波器针对该目标边带波长进行滤波的滤波属性，例如具体可表征为滤波器针对目标边带波长的能量滤波比(或者称为透射比)。
步骤D20，基于第四预设映射关系，确定所述功率差值映射的第四链路端口信息，根据所述第四链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该第四预设映射关系中具有各个功率差值与第四链路端口信息之间一一映射的映射关系。其中，不同的功率差值映射不同的第四链路端口信息。可以理解的是，该第四预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本申请实施例通过获取在功率编码组合中目标边带波长的功率，计算该目标边带波长的功率与目标功率的功率差值，并基于该第四预设映射关系，确定该功率差值映射的第四链路端口信息，再根据该第四链路端口信息，从而准确地确定出ONU连接的分光器的光链路输出端口。
为了助于理解本申请实施例的技术原理或技术构思，列举具体实施例一，其中：
本申请实施例公开了一种利用ONU端接收滤波片的通带边带效应引起ONU侧下行接收功率波动的方法，该方法无需部署昂贵的光放大需要的设备，也不需要改变ONU设计，如图3所示的ONU光路设计中有0度滤波片，该0度滤波片的设计应生产工艺等过程一般会比标准规则的通带会稍宽，如图4和图5所示，此时如果在下行方向发送对应滤波片边带波长信号的话，该信号亦会被接收，从而会增加业务信号的直流分量，从而引起了ONU侧接收功率的变化，同时由于交流耦合的作用不会影响业务信号的判决。
如图2所示，图2为本申请实施例中PON网络系统的架构示意图，本实施例可采用OLT的设计控制WDM激光器发射若干通道边带内的不同波长，使ONU端接收滤波片的通带边带效应与ODN端具备不同反射比的分支端口一起组合，形成不同分支端口不同的功率波动，通过ONU端对OLT发射响应后接收到的不同功率变化值，识别指定ONU所连接的分支链路端口信息。
本申请实施例通过巧妙利用PON(passive optical network，无源光网络)ONU BOSA(bi-directionalopticalsub-assembly，光发射接收组件)的滤波片延展边带效应，无需在分光器侧设计采用遥泵放大技术，且无需改变原有ONU结构设计新增可接收非业务波长信号的接收机，无需做波长转移或添加增益组件等方式增加综合成本，便可实现在降低ODN的成本的基础上，准确识别出ONU连接的分光器的端口。且对业务信号无任何干扰影响，无损化升级提高网络智能管理效率。
需要说明的是，上述具体实施例一仅用于帮助理解本申请实施例的技术原理或技术构思，并不构成对本申请的限定，基于该技术构思进行更多形式的简单变换，均应在本申请的保护范围内。
在一种实现方式中，为了助于理解本申请实施例的技术原理或技术构思，列举另具体实施例二，包括：
本申请实施例设计一种PON网络实现ONU(optical network unit，光网络单元)功率扰动的方法，该方法基于PON系统ONU BOSA的接收0度滤波片的通带范围的边带波段，该边带波段可通过0度滤波片被ONU接收系统接收，如图3所示，从而提高ONU(光网络单元)接收信号的直流分量，从而实现接收信号功率的扰动。
下行发送业务信号通带两边4至6nm，比如，OLT TX业务信号波长λ±10nm，则该边带信号工作波长为λ-16nm～λ-10nm&λ+10nm～λ+16nm。
上述接收信号，由ONU BOSA模块接收，该模块不用改动，其单纤双向器件BOSA接收探测器前端有个0度滤波片，其滤波片不仅可对OLT(光线路终端)TX发射端工作波长λ±10nm进行100％透射，由于滤波镀膜过渡带及设计冗余原因，0度滤波片还对λ±14nm或λ±16nm整个滤波带都100％透射。
上述接收信号由OLT侧设计发送模块，该发送模块采用一个激光器或多个激光器阵列或波长调谐技术，支持在边带波段内选择发送一个或多个波长发送不带数据调制的光信号，通过与下行业务光信号合波后经光网络到达ONU BOSA模块。其中，该发送模块可集成在OLT光模块内，或独立板卡或独立设备。
进一步，由于PON ODN是典型的无源点到多点的方式，为了能够识别指定ONU所连接的链路端口信息，结合光网络中分光器的设计，并结合上述ONU功率扰动的方法，每个不同的ONU产生不同的功率扰动，根据不同ONU接收到不同的功率扰动值，与分光器的端口设计进行对应，即可识别ONU所在的端口信息。
需要说明的是，上述具体实施例二仅用于帮助理解本申请实施例的技术原理或技术构思，并不构成对本申请的限定，基于该技术构思进行更多形式的简单变换，均应在本申请的保护范围内。
此外，本申请实施例还提供一种光网络系统，包括光分配网络和光网络单元ONU，所述光分配网络包括滤波器和N级分光器，所述N为正整数；
所述N级分光器中的每级分光器包括至少一个分光器，所述分光器包括M个光链路输出端口，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有不同的所述滤波器，且每个光链路输出端口对应连接一个所述ONU，其中，所述M为大于一的整数；
其中，不同的所述滤波器针对光信号的透射率编码组合不同，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合。
在一实例中，M等于5，此时这5个光链路输出端口中至少存在4个光链路输出端口对应配置有滤波器，且每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。在另一实例中，M等于8，则这8个光链路输出端口中至少存在7个光链路输出端口对应配置有滤波器，且每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。本实施例对此不作具体的限定。容易理解的是，本实施例不必所有光链路输出端口均配置滤波器，可通过将其中一个光链路输出端口不设置滤波器，即对所有波长进行100％透射，而剩下的其他光链路输出端口设置不同的滤波器(不同的滤波器针对光信号的透射率编码组合不同)，从而可使得配置有滤波器的光链路输出端口针对特定波长的能量滤波比(或者称为透射比)不同，或者针对不同波长存在能量滤波(不同波长存在能量滤波对应的滤波比可为相同，也可为不同，在能量滤波比相同时，该能量滤波比也不为0％滤波或者说不为100％透射)，进而可实现每个光链路输出端口透射出来的光信号存在不同的功率编码组合，其中，该功率编码组合是指光信号中不同波长的功率配比所形成的编码组合。
为了助于理解，在一示例中，在光链路输出端口1设置滤波器A，那么入射至光链路输出端口1且经过滤波器A所透射出来的光信号，此时该光信号的功率编码组合应该是与滤波器A对应的透射率编码组合a是映射的，例如透射率编码组合a映射的功率编码组合为S1，那么在某个光网络单元M1接收到光纤所传输光信号的功率编码组合为S1，则可确定该光网络单元M1在分光器上所连接的分支链路端口为光链路输出端口1。在另一示例中，在光链路输出端口2设置滤波器B，那么入射至光链路输出端口2且经过滤波器B所透射出来的光信号，此时该光信号的功率编码组合应该是与滤波器B对应的透射率编码组合b是映射的，例如透射率编码组合b映射的功率编码组合为S2，那么在某个光网络单元M2接收到光纤所传输光信号的功率编码组合为S2，则可确定该光网络单元M2在分光器上所连接的分支链路端口为光链路输出端口2。
本实施例通过在M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有滤波器，其中，每个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同，从而使得入射至分光器的光信号，在分光至各个光链路输出端口时，被各个光链路输出端口所配置的滤波器对于针对特定波长的能量滤波比(或者称为透射比)不同，或者针对不同波长存在能量滤波(不同波长存在能量滤波对应的滤波比可为相同，也可为不同)，从而使得各个光链路输出端口透射出来的光信号存在不同的功率编码组合，进而可根据不同分支端口的光纤传输过来的光信号的功率编码组合，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
在一种实现方式中，本申请实施例的分光器可为包括N级的分光器，其中，N可为一，也可为大于或等于二的整数，本实施例不作具体的限定。需要说明的是，同一级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合不同。并且在N为大于或等于二的整数时，第K级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合，与第H级分光器的任意一个光链路输出端口针对光信号对应配置的该透射率编码组合不同，H和K均为正整数，其中，第K级分光器和第H级分光器为N级分光器中的任意两级。本申请实施例通过该方式，可根据不同分支端口的光纤传输过来的光信号的功率编码组合，确定光网络终端连接的是哪一级分光器中的哪一个光链路输出端口，从而准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息，进而解决PON网络无源ODN网络中ONU所连接的链路信息识别，可用于ODN资源动态可视化管理。
本申请提出一种光网络系统，包括光分配网络和光网络单元ONU，该光分配网络包括滤波器和N级分光器，N为正整数，其中，N级分光器中的每级分光器包括至少一个分光器，该分光器包括M个光链路输出端口，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有不同的滤波器，且每个光链路输出端口对应连接一个ONU，M为大于一的整数，其中，不同的滤波器针对光信号的透射率编码组合不同，该透射率编码组合为在ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合，从而使得本申请实施例利用滤波片的通带边带效应，将光网络单元(ONU)端与光分布式网络(ODN)端具备不同反射比的分支端口一起组合，形成不同分支端口不同的功率变化关系(即功率编码组合)，进而便于基于接收到的不同功率变化关系，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
相比于相关技术中对分光器进行的端口识别方案，本申请实施例可以继续沿用原有光网络系统中分光器和ONU的硬件结构，无需在分光器侧设计采用遥泵放大技术，且无需改变原有ONU结构设计新增可接收非业务波长信号的接收机，从而实现了在降低ODN的成本的基础上，准确识别出ONU连接的分光器的端口。
在一种可实施的方式中，所述光网络系统还包括光线路终端；所述光线路终端，用于：接收来自所述ONU的所述功率编码组合；根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口。
具体地，光线路终端可基于第一预设映射关系，确定功率编码组合映射的第一链路端口信息，根据该第一链路端口信息，确定ONU连接的分光器的光链路输出端口。
在本实施例中，该第一预设映射关系中具有各个功率编码组合与第一链路端口信息之间一一映射的映射关系。其中，不同的功率编码组合映射不同的第一链路端口信息。可以理解的是，该第一预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本实施例通过基于第一预设映射关系，确定该功率编码组合映射的第一链路端口信息，并根据该第一链路端口信息，从而准确地确定出ONU连接的分光器的光链路输出端口。
在一种可能的实施方式中，所述通带范围包括业务光的工作波段，以及分布于所述工作波段两侧的边带波段，所述透射率编码组合为针对所述边带波段内不同边带波长的透射率配比所形成的编码组合，其中，所述滤波器针对所述工作波段内的工作波长均为全透射。
在一种实现方式中，所述ONU用于分别确定来自所述光分配网络的光信号的功率编码组合，其中，所述功率编码组合为针对所述边带波段内不同边带波长的功率配比所形成的编码组合，所述透射率编码组合与所述功率编码组合一一映射；
其中，所述功率编码组合用于确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该业务光的工作波段是指业务光的工作波长对应所在的波段范围，具体可为以工作波长为基准，上下浮动第一预设波长。由于光网络单元ONU中滤波片的滤波镀膜过渡带及设计冗余原因，滤波片的通带范围在涵盖该工作波段的基础上，该工作波段往上往下分别额外预留一部分的波段，具体可为以工作波段为基准，上下浮动第二预设波长，该上下浮动的第二预设波长范围(也即所预留的波段)即为边带波段，边带波段是指滤波片的通带范围内除该工作波段之外的其他波段范围，该边带波段位于该工作波段的两侧。为了助于理解，列举两示例。在一示例中，光网络单元ONU中滤波片不仅可对OLT的TX(Transmitter，发射机)发射端的工作波长λ±10nm进行100％透射(此时10nm即为第一预设波长)，由于滤波镀膜过渡带及设计冗余原因，滤波片还对λ±14nm整个滤波带都100％透射。此时工作波段即为【λ-10nm，λ+10nm】，边带波段即为【λ-14nm，λ-10nm)，以及(λ+10nm，λ+14nm】。本领域技术人员可知的是，在边带波段范围内的波长为不带数字信号的光能量，仅为0电平信号，无调制信号。
在另一示例中，光网络单元ONU中滤波片不仅可对OLT的TX(Transmitter，发射机)发射端的工作波长λ±10nm进行100％透射(此时10nm即为第一预设波长)，由于滤波镀膜过渡带及设计冗余原因，滤波片还对λ±16nm整个滤波带都100％透射。此时工作波段即为【λ-10nm，λ+10nm】，边带波段即为【λ-16nm，λ-10nm)，以及(λ+10nm，λ+16nm】。需要说明的是，以上两示例中示出的诸多细节，仅用于理解本申请实施例，并不构成对本申请实施例的限定。本领域技术人员可知的是，在边带波段范围内的波长为不带数字信号的光能量，仅为0电平信号，无调制信号。此时每个ONU的BOSA(bi-directionalopticalsub-assembly，光发射接收组件)不仅接收到OLT(光线路终端)发送工作波段内的下行业务光信号，也会接收到WDM(Wavelength Division Multiplexing，波分复用)激光器或可调激光器发送的边带波段内的光信号，根据各个光链路输出端口所配置的滤波器，对边带波段内的特定波长进行滤波(由于边带波段内的波长不携带数字信号，或者说不携带业务信息，因此边带波段内的波长被过滤，不会对整个业务光信号的信号质量产生任何影响)，每个光链路输出端口所配置的滤波器不同，而不同的滤波器针对边带波段内边带波长的透射率配比所形成的编码组合不同，从而使得从各个光链路输出端口透射出来的光信号存在不同的功率编码组合，其中，该功率编码组合即为该边带波段内不同边带波长的功率配比所形成的编码组合，进而可根据不同分支端口的光纤传输过来的光信号的功率编码组合，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
值得一提的是，本申请实施例通过提供一种利用ONU端接收滤波片的通带边带效应引起ONU侧下行接收功率波动的方法，该方法无需部署昂贵的光放大需要的设备，也不需要改变ONU设计。相比于相关技术中对分光器进行的端口识别方案，本申请实施例可以继续沿用原有光网络系统中分光器和ONU的硬件结构，无需在分光器侧设计采用遥泵放大技术，且无需改变原有ONU结构设计新增可接收非业务波长信号的接收机，从而实现了在降低ODN的成本的基础上，准确识别出ONU连接的分光器的端口。
在本实施例中，不同ONU连接的ODN分支端口不同，同时不同分支端口设计了不同的波长及反射率或透射率编码组合。当发送波长光信号时，引起了ONU的BOSA接收到发送的光信号功率大小不同，而不同的功率大小会对应端口反射率或透射率的设计，因此综合发送的波长及ONU的BOSA接收到的功率大小可对应到端口预设的波长及反射率或透射率编码，从而可定位出ONU所连接的光链路分光器的光链路输出端口。
在一实施例中，所述光网络系统还包括可调波长激光器，所述光线路终端，还用于：接收来自所述ONU的所述功率编码组合；将所述功率编码组合与目标编码组合中属于同一边带波长的功率分别进行求差，得到差值编码组合，其中，所述目标编码组合为在所述可调波长激光器发射至分光器的光链路输入端口的光信号中，所述边带波段内不同边带波长的功率配比所形成的编码组合；基于第二预设映射关系，确定所述差值编码组合映射的第二链路端口信息，根据所述第二链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
其中，该目标编码组合为在输入至分光器的光链路输入端口的光信号中，所述边带波段内不同边带波长的功率配比所形成的编码组合。该目标编码组合即为输入光信号在边带波段内不同边带波长的功率配比所形成的编码组合，其中，该输入光信号为输入至光链路输出端口所配置的滤波器的光信号。可以理解的是，该差值编码组合即为该输入光信号与输出光信号分别针对同一边带波长的功率分别进行求差，而得到的编码组合。其中，该输出光信号为从光链路输出端口所配置的滤波器中输出的光信号。容易理解的是，该差值编码组合可用于表征该滤波器针对特定波长进行滤波的滤波属性，例如具体可表征为滤波器针对边带波段内各个波长的能量滤波比(或者称为透射比)。
在本实施例中，该第二预设映射关系中具有各个差值编码组合与第二链路端口信息之间一一映射的映射关系。其中，不同的差值编码组合映射不同的第二链路端口信息。可以理解的是，该第二预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本实施例通过基于该第二预设映射关系，确定该差值编码组合映射的第二链路端口信息，并根据该第二链路端口信息，从而准确地定位出ONU连接的分光器的光链路输出端口。
在另一实施例中，所述光线路终端，还用于：接收来自所述ONU的所述功率编码组合；获取在所述功率编码组合中目标边带波长的功率，基于第三预设映射关系，确定所述目标边带波长的功率映射的第三链路端口信息；根据所述第三链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
在本实施例中，该第三预设映射关系中具有目标边带波长的各个功率与第三链路端口信息之间一一映射的映射关系。其中，目标边带波长的不同功率映射不同的第三链路端口信息。可以理解的是，该第三预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
在本实施例中，需要说明的是，不同的光链路输出端口针对该目标边带波长的透射率不同。具体地，不同光链路输出端口所配置的滤波器针对该目标边带波长的滤波比不同，从而使得从各个光链路输出端口透射出来的目标边带波长的功率均不同，进而可获取在功率编码组合中目标边带波长的功率，基于该第三预设映射关系，准确地识别出指定光网络单元在分光器上所连接的分支链路端口信息。
在又一实施例中，所述光网络系统还包括可调波长激光器，所述光线路终端，还用于：
接收来自所述ONU的所述功率编码组合；获取在所述功率编码组合中目标边带波长的功率，计算所述目标边带波长的功率与目标功率的功率差值，其中，所述目标功率为在所述可调波长激光器发射至分光器的光链路输入端口的光信号中，所述目标边带波长的功率；基于第四预设映射关系，确定所述功率差值映射的第四链路端口信息，根据所述第四链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
需要说明的是，不同的光链路输出端口针对该目标边带波长的透射率不同。具体地，不同光链路输出端口所配置的滤波器针对该目标边带波长的滤波比不同，从而使得从各个光链路输出端口透射出来的目标边带波长的功率均不同。
在本实施例中，该目标功率为在输入至分光器的光链路输入端口的光信号中目标边带波长的功率。该目标功率也即为输入光信号的目标边带波长的功率，其中，该输入光信号为输入至光链路输出端口所配置的滤波器的光信号。该功率差值即为该输入光信号与输出光信号分别针对目标边带波长的功率分别进行求差，而得到的功率值。其中，该输出光信号为从光链路输出端口所配置的滤波器中输出的光信号。容易理解的是，该功率差值可用于表征该滤波器针对该目标边带波长进行滤波的滤波属性，例如具体可表征为滤波器针对目标边带波长的能量滤波比(或者称为透射比)。
在本实施例中，该第四预设映射关系中具有各个功率差值与第四链路端口信息之间一一映射的映射关系。其中，不同的功率差值映射不同的第四链路端口信息。可以理解的是，该第四预设映射关系可预存于作为本申请实施例执行主体的电子设备的系统中。
本申请实施例通过获取在功率编码组合中目标边带波长的功率，计算该目标边带波长的功率与目标功率的功率差值，并基于该第四预设映射关系，确定该功率差值映射的第四链路端口信息，再根据该第四链路端口信息，从而准确地确定出ONU连接的分光器的光链路输出端口
为了助于理解本申请实施例的技术原理或技术构思，列举具体实施例三，参照图5，其中：
(一)实现方式一包括：
如图5所示，首先取两个独立的WDM激光器，均发出不带数字信号的光能量，仅为0电平信号，无调制型号，两WDM激光器工作波长λ1～λ2精度为±0.2nm，GPON(Gigabit-capable passive optical networks，吉比特无源光网络)OLT TX发射端工作波长为1490±10nm，XGS(Xgigabit-capable passive optical networks，X千兆位功能的无源光网络)PON TX端波长为1575～1581nm。其中λ1均在终端GPON(Gigabit-capable passive optical networks，吉比特无源光网络)ONU的接收通带扩展带范围内。GPON ONU BOSA对λ1光信号接收为插入损耗小于0.3dB(7％)，且1473nm≤λ1≤1480nm或1500nm≤λ1≤1507nm。XGS PON ONU BOSA对λ2光信号接收为插入损耗小于0.3dB(7％)，且1571nm≤λ2≤1575nm或1581nm≤λ2&λ4≤1588nm。其次ODN端采用等分光比或不等分光比的分光器(分光器可以为1:2、1：4或1:8)，同时可以以级联的形式出现，每个分路器上都带有一个GPON(吉比特无源光网络)ONU或XGS PON ONU波长滤波器结构设计，且至少1个分光器支路上带有对λ1&λ2波长能量滤波或透射比设计的功能。最后，当GPON OLT TX端工作并发射1490±10nm业务光信号，且WDM激光器没有开启时，各ODN端支路对业务波长信号100％透射，并被每个支路GPON ONU接收到，每个GPON ONU对此接收光信号能量响应为P0，并记录于ONU的MCU(Microcontroller Unit，微控制单元)地址表中。
当WDM激光器分别发射λ1&λ2波长信号时，每个输出分支光纤的GPON ONU BOSA对此波长的透射率为100％，由于各个分支光纤针对特定波长透射比不同，所以每个ONU端的响应增益也不同，此状态下每个GPON ONU响应功率为P1，记录于ONU的MCU另外一个地址中。最终通过△P-GPONi的变化及编码方式上传给OLT，系统可以识别每根光纤下挂载GPON ONU的光链路状态。同理针对λ2波长光信号对XGSP-PON ONU BOSA产生的功率增益变化量的△XGSPON(无源光网络)i及编码方式上传给OLT，系统可以识别每根光纤下挂载GPON ONU的光链路状态。其中，两个独立的激光器也可为可调激光器。
(二)实现方式二包括：
如图5所示，首先取八个独立的WDM激光器，均发出不带数字信号的光能量，仅为0电平信号，无调制型号，八个WDM激光器工作波长λ1～λ8精度为±0.2nm，GPON OLT TX发射端工作波长为1490±10nm，XGS PON TX端波长为1575～1581nm。
其中，λ1&λ2&λ5&λ6均在终端GPON ONU的接收通带扩展带范围内。GPON ONU BOSA对λ1&λ2&λ5&λ6光信号接收为插入损耗小于0.3dB(7％)，且1473nm≤λ1&λ2&λ5&λ6≤1480nm或1500nm≤λ1&λ2&λ5&λ6≤1507nm。XGS PON ONU BOSA对λ3&λ4&λ7&λ8光信号接收为插入损耗小于0.3dB(7％)，且1571nm≤λ3&λ4&λ7&λ8≤1575nm或1581nm≤λ3&λ4&λ7&λ8≤1588nm。其次ODN端采用等分光比或不等分光比的分光器(分光器可以为1：2、1：4或1：8)，同时可以以级联的形式出现，每个分路器上都带有一个GPON ONU或XGS PON ONU波长滤波器结构设计，且至少1个分光器支路上带有对λ1～λ8波长能量滤波或透射比设计的功能。最后，当GPON OLT TX端工作并发射1490±10nm业务光信号，且WDM激光器没有开启时，各ODN端支路对业务波长信号100％透射，并被每个支路GPON ONU接收到，每个GPON ONU对此接收光信号能量响应为P0，并记录于ONU的MCU地址表中。
当WDM激光器分别发射λ1&λ2&λ5&λ6波长信号时，每个输出分支光纤的GPON ONU BOSA对此波长的透射率为100％，由于各个分支光纤针对特定波长透射比不同，所以每个ONU端的响应增益也不同，此状态下每个GPON ONU响应功率为P1，记录于ONU的MCU另外一个地址中。最终通过△P-GPONi的变化及编码方式上传给OLT，系统可以识别每根光纤下挂载GPON ONU的光链路状态。
同理针对λ3&λ4&λ7&λ8波长光信号对XGS PON ONU BOSA(光发射接收组件)产生的功率增益变化量的△P-XGSPONi及编码方式上传给OLT，系统可以识别每根光纤下挂载GPON ONU的光链路状态。其中，八个独立的激光器也可为可调激光器。
需要说明的是，上述具体实施例三仅用于帮助理解本申请实施例的技术原理或技术构思，并不构成对本申请的限定，基于该技术构思进行更多形式的简单变换，均应在本申请的保护范围内。
此外，本申请实施例还提供一种电子设备，请参照图6，图6为本申请实施例提供的一种电子设备的硬件结构示意图。如图6所示，电子设备可以包括：处理器1001，例如中央处理器(Central Processing Unit，CPU)，通信总线1002、用户接口1003，网络接口1004，存储器1005。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘(Keyboard)，在一种实现方式中，用户接口1003还可以包括标准的有线接口、无线接口。在一种实现方式中，网络接口1004可以包括标准的有线接口、无线接口(如无线保真(WIreless-FIdelity，WI-FI)接口)。存储器1005可以是高速的随机存取存储器(Random Access Memory，RAM)存储器，也可以是稳定的非易失性存储器(Non-Volatile Memory，NVM)，例如磁盘存储器。在一种实现方式中，存储器1005还可以是独立于前述处理器1001的存储设备。
本领域技术人员可以理解，图6中示出的结构并不构成对电子设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。如图6所示，作为一种可读存储介质的存储器1005中可以包括操作系统、数据存储模块、网络通信模块、用户接口模块以及分光器的端口识别程序。
在图6所示的电子设备中，网络接口1004主要用于与其他设备进行数据通信；用户接口1003主要用于与用户进行数据交互；本实施例中的处理器1001、存储器1005可以设置在通信设备中，通信设备通过处理器1001调用存储器1005中存储的分光器的端口识别程序，并执行上述任一实施例提供的应用于分光器的端口识别方法。
本实施例提出的终端与上述实施例提出的应用于分光器的端口识别方法属于同一发明构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行分光器的端口识别方法相同的有益效果。
此外，本申请实施例还提出一种计算机可读存储介质，该计算机可读存储介质可以为非易失性计算机可读存储介质，该计算机可读存储介质上存储有分光器的端口识别程序，该分光器的端口识别程序被处理器执行时实现如上所述的本申请分光器的端口识别方法。
本申请电子设备和计算机可读存储介质的各实施例，均可参照本申请分光器的端口识别方法各个实施例，此处不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台电子设备设备(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (16)

  1. 一种分光器的端口识别方法，其中，所述分光器包括M个光链路输出端口，各个光链路输出端口针对光信号对应配置的透射率编码组合不同，其中，所述M为大于一的整数，包括：
    获取来自光分配网络的光信号，并确定所述光信号的功率编码组合，其中，所述功率编码组合为在光网络单元ONU中滤波片的通带范围内，针对不同波长的功率配比所形成的编码组合，
    所述透射率编码组合与所述功率编码组合一一映射，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合；
    根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口。
  2. 如权利要求1所述的分光器的端口识别方法，其中，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有滤波器，且各个光链路输出端口所配置的滤波器针对光信号的透射率编码组合不同。
  3. 如权利要求1所述的分光器的端口识别方法，其中，所述通带范围包括业务光的工作波段，以及分布于所述工作波段两侧的边带波段，所述透射率编码组合为针对所述边带波段内不同边带波长的透射率配比所形成的编码组合，所述功率编码组合为针对所述边带波段内不同边带波长的功率配比所形成的编码组合。
  4. 如权利要求3所述的分光器的端口识别方法，其中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
    基于第一预设映射关系，确定所述功率编码组合映射的第一链路端口信息，根据所述第一链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  5. 如权利要求3所述的分光器的端口识别方法，其中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
    将所述功率编码组合与目标编码组合中属于同一边带波长的功率分别进行求差，得到差值编码组合，其中，所述目标编码组合为在输入至分光器的光链路输入端口的光信号中，所述边带波段内不同边带波长的功率配比所形成的编码组合；
    基于第二预设映射关系，确定所述差值编码组合映射的第二链路端口信息，根据所述第二链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  6. 如权利要求3所述的分光器的端口识别方法，其中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
    获取在所述功率编码组合中目标边带波长的功率，基于第三预设映射关系，确定所述目标边带波长的功率映射的第三链路端口信息；
    根据所述第三链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  7. 如权利要求3所述的分光器的端口识别方法，其中，所述根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口的步骤包括：
    获取在所述功率编码组合中目标边带波长的功率，计算所述目标边带波长的功率与目标功率的功率差值，其中，所述目标功率为在输入至分光器的光链路输入端口的光信号中，所述目标边带波长的功率；
    基于第四预设映射关系，确定所述功率差值映射的第四链路端口信息，根据所述第四链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  8. 一种光网络系统，其中，包括光分配网络和光网络单元ONU，所述光分配网络包括滤波器和N级分光器，所述N为正整数；
    所述N级分光器中的每级分光器包括至少一个分光器，所述分光器包括M个光链路输出端口，M个光链路输出端口中至少存在M-1个光链路输出端口对应配置有不同的所述滤波器，且每个光链路输出端口对应连接一个所述ONU，其中，所述M为大于一的整数；
    其中，不同的所述滤波器针对光信号的透射率编码组合不同，所述透射率编码组合为在所述ONU中滤波片的通带范围内，针对不同波长的透射率配比所形成的编码组合。
  9. 如权利要求8所述的光网络系统，其中，所述通带范围包括业务光的工作波段，以及分布于所述工作波段两侧的边带波段，所述透射率编码组合为针对所述边带波段内不同边带波长的透射率配比所形成的编码组合，其中，所述滤波器针对所述工作波段内的工作波长均为全透射。
  10. 如权利要求9所述的光网络系统，其中，所述ONU用于分别确定来自所述光分配网络的光信号的功率编码组合，其中，所述功率编码组合为针对所述边带波段内不同边带波长的功率配比所形成的编码组合，所述透射率编码组合与所述功率编码组合一一映射；其中，所述功率编码组合用于确定所述ONU连接的分光器的光链路输出端口。
  11. 如权利要求10所述的光网络系统，其中，所述光网络系统还包括光线路终端；
    所述光线路终端，用于：
    接收来自所述ONU的所述功率编码组合；
    根据所述功率编码组合，确定所述ONU连接的分光器的光链路输出端口。
  12. 如权利要求11所述的光网络系统，其中，所述光网络系统还包括可调波长激光器，所述光线路终端，还用于：
    接收来自所述ONU的所述功率编码组合；
    将所述功率编码组合与目标编码组合中属于同一边带波长的功率分别进行求差，得到差值编码组合，其中，所述目标编码组合为在所述可调波长激光器发射至分光器的光链路输入端口的光信号中，所述边带波段内不同边带波长的功率配比所形成的编码组合；
    基于第二预设映射关系，确定所述差值编码组合映射的第二链路端口信息，根据所述第二链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  13. 如权利要求11所述的光网络系统，其中，所述光线路终端，还用于：
    接收来自所述ONU的所述功率编码组合；
    获取在所述功率编码组合中目标边带波长的功率，基于第三预设映射关系，确定所述目标边带波长的功率映射的第三链路端口信息；
    根据所述第三链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  14. 如权利要求11所述的光网络系统，其中，所述光网络系统还包括可调波长激光器，所述光线路终端，还用于：
    接收来自所述ONU的所述功率编码组合；
    获取在所述功率编码组合中目标边带波长的功率，计算所述目标边带波长的功率与目标功率的功率差值，其中，所述目标功率为在所述可调波长激光器发射至分光器的光链路输入端口的光信号中，所述目标边带波长的功率；
    基于第四预设映射关系，确定所述功率差值映射的第四链路端口信息，根据所述第四链路端口信息，确定所述ONU连接的分光器的光链路输出端口。
  15. 一种电子设备，其中，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的分光器的端口识别程序，所述分光器的端口识别程序被所述处理器执行时实现如权利要求1至7中任一项所述的分光器的端口识别方法。
  16. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有分光器的端口识别程序，所述分光器的端口识别程序被处理器执行时实现如权利要求1至7中任一项所述的分光器的端口识别方法。
PCT/CN2024/134512 2023-12-04 2024-11-26 分光器的端口识别方法、光网络系统、电子设备及介质 Pending WO2025119033A1 (zh)

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Citations (3)

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CN110933531A (zh) * 2019-10-23 2020-03-27 华为技术有限公司 一种端口检测的方法以及装置
CN113572520A (zh) * 2020-04-29 2021-10-29 华为技术有限公司 光网络终端和确定光网络终端连接的端口的方法
CN113873357A (zh) * 2020-06-30 2021-12-31 华为技术有限公司 分光器、odn、识别onu所在光链路的方法、olt、onu和pon系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110933531A (zh) * 2019-10-23 2020-03-27 华为技术有限公司 一种端口检测的方法以及装置
CN113572520A (zh) * 2020-04-29 2021-10-29 华为技术有限公司 光网络终端和确定光网络终端连接的端口的方法
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