WO2017166546A1 - 一种长发光光网络单元的检测方法、装置及光线路终端 - Google Patents

一种长发光光网络单元的检测方法、装置及光线路终端 Download PDF

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Publication number
WO2017166546A1
WO2017166546A1 PCT/CN2016/091619 CN2016091619W WO2017166546A1 WO 2017166546 A1 WO2017166546 A1 WO 2017166546A1 CN 2016091619 W CN2016091619 W CN 2016091619W WO 2017166546 A1 WO2017166546 A1 WO 2017166546A1
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onu
long
lighting
time slot
recording period
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PCT/CN2016/091619
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English (en)
French (fr)
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余辰东
于金辉
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中兴通讯股份有限公司
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Publication of WO2017166546A1 publication Critical patent/WO2017166546A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • 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
    • H04B10/0791—Fault location on the transmission path
    • 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
    • H04B10/0793—Network aspects, e.g. central monitoring of transmission parameters
    • 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
    • H04B10/07953—Monitoring or measuring OSNR, BER or Q
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems

Definitions

  • the invention relates to, but is not limited to, the technical field of communication applications, and in particular, to a method, a device and an optical line terminal for detecting a long-light-emitting optical network unit.
  • a common networking system is generally an element management system (EMS), an optical line terminal (OLT), an optical distribution network (ODN), and A plurality of optical network units (ONUs) are used as the central office equipment to connect multiple ONUs through the ODN network.
  • the ONUs implement user service access and implement data services and configuration management.
  • the xPON network acts as a "point-to-multipoint" topology: the transmission direction from the OLT to the ONU is the downlink direction, and the downlink direction uses the broadcast method to transmit data.
  • the ONU determines whether the data is valid according to the data identifier and decides to receive or discard it; from the ONU to
  • the uplink direction of the OLT is the uplink direction, and the uplink direction uses the Time Division Multiple Access (TDMA) mode.
  • the ONU must send the uplink burst Burst signal according to the bandwidth bandwidth (Bandmap) of the OLT.
  • each ONU is assigned a unique identifier in the PON port as the link identifier of the ONU, such as the logical link in the Ethernet Passive Optical Network (EPON) system.
  • the Logical Link Identifier (LIID) is used as the unique identifier of the ONU.
  • the ONU Identifier (ID) is used as the unique identifier of the ONU in the Gigabit-Capable PON (GPON).
  • the xPON central office allocates an authorized time slot to the ONU according to the ONU identifier.
  • the ONU transmits data in different uplink time slots of the OLT control allocation (based on the ONU identity), and each time slot is independent of each other.
  • the ONU uplink data transmitted by the PON port using the normal allocated time slot will cause interference. Resulting in failure to recover normal data, production
  • the upstream uplink packet loss occurs, and the ranging error may occur, and the loop delay drift occurs; the related interfered ONU is offline.
  • the xPON OLT adopts a dynamic bandwidth allocation mode and the ONU identifier is also dynamically allocated, the ONU authorized time slot is dynamically changed, so that the influence range of the long-lighting ONU is uncertain, which makes it difficult to detect and locate the long-lighting ONU.
  • the invention provides a method, a device and an optical line terminal for detecting a long-light-emitting optical network unit, which can solve the problem that the long-lighting ONU is difficult to locate due to the dynamic change of the ONU uplink grant time slot in the xPON system.
  • the present invention provides a detection method for a long-light-emitting optical network unit, which is applied to an optical line terminal OLT, and the detection method includes:
  • a time slot is fixedly allocated for each ONU that is in communication with the optical line terminal OLT, and the correspondence between the ONU identifier of each ONU and the allocated time slot of the ONU is recorded;
  • a long-emitting ONU is detected in the suspected fault ONU set.
  • the determining, according to the correspondence between the ONU identifier and the allocated time slot of the ONU and the time slot range corresponding to the ONU long illuminating signal, determining a suspicious fault ONU set including:
  • a suspicious fault ONU set is determined according to an ONU identifier corresponding to the long illuminating signal slot.
  • the method further includes:
  • the uplink and downlink information and ONU error information of each ONU are recorded according to a preset recording cycle period.
  • the detecting the long-lighting ONU in the suspected fault ONU set includes:
  • a long-lighting ONU is detected in the suspicious fault ONU set according to the uplink and downlink information of each ONU and the ONU error information in the abnormal recording period and the normal recording period, and the abnormal recording period is that the ONU is detected.
  • a recording period of the illuminating signal, the normal recording period being a recording period in which the ONU long illuminating signal is not detected.
  • the long-lighting ONU is detected in the suspicious fault ONU set according to the uplink and downlink information of each ONU and the ONU error information in the abnormal recording period and the normal recording period.
  • the suspected long-lighting ONU is used as the long-lighting ONU.
  • the obtaining the suspected long-lighting ONU according to the first ONU set, the second ONU set, and the third ONU set includes:
  • the ONU in the third ONU set is regarded as a suspect long-light ONU
  • intersection of the first ONU set and the second ONU set is not empty, the intersection of the first ONU set and the second ONU set is regarded as a suspect long-light ONU.
  • the method further includes:
  • the long-lighting ONU is reported to the network element management system, so that the network element management system performs fault processing on the long-lighting ONU.
  • a detection device for a long-lighting optical network unit comprising:
  • the distribution module is configured to, after detecting the ONU failure alarm of the optical network unit, allocate a time slot for each ONU connected to the OLT, and record the correspondence between the ONU identifier of each ONU and the allocated time slot of the ONU. relationship;
  • Obtaining a module configured to perform long-light signal detection processing on the ONU, and acquire a time slot range corresponding to the ONU long-lighting signal;
  • a determining module configured to determine a suspicious fault ONU set according to a correspondence between the ONU identifier and the allocated time slot of the ONU and a time slot range corresponding to the ONU long illuminating signal
  • the first detecting module is configured to detect a long-lighting ONU in the suspected fault ONU set.
  • the determining module includes:
  • a first acquiring sub-module configured to acquire, in a time slot fixedly allocated by each ONU that is in communication with the OLT, a long illuminating signal time slot that is within a time slot corresponding to the long illuminating signal of the ONU;
  • the second obtaining sub-module is configured to acquire an ONU identifier corresponding to the long-lighting signal time slot according to a correspondence between the ONU identifier and the allocated time slot of the ONU;
  • the first determining submodule is configured to determine the suspicious fault ONU set according to the ONU identifier corresponding to the long illuminating signal slot.
  • the detecting device further includes:
  • the recording module is configured to record the uplink and downlink information and the ONU error information of each ONU according to a preset recording cycle period.
  • the first detecting module is in the suspicious fault ONU set
  • the detection of long-emitting ONUs includes:
  • a long-lighting ONU is detected in the suspicious fault ONU set according to the uplink and downlink information of each ONU and the ONU error information in the abnormal recording period and the normal recording period, and the abnormal recording period is that the ONU is detected.
  • a recording period of the illuminating signal, the normal recording period being a recording period in which the ONU long illuminating signal is not detected.
  • the first detecting module includes:
  • the third obtaining submodule is configured to compare the ONU error information of the ONU in the normal recording period with the ONU error information of the ONU in the abnormal recording period, in the suspicious fault ONU set Obtaining, by the first ONU set, that the difference value of the ONU error information is smaller than the first preset threshold;
  • a fourth acquiring sub-module configured to acquire, in the normal recording period, the online line in the normal recording period according to the ONU uplink and offline information in the normal recording period and the abnormal recording period, and in the normal recording period a second ONU set that remains online during an abnormal recording period and a third ONU set that is dropped during the normal recording period and remains offline during an abnormal recording period;
  • a second determining sub-module configured to obtain a suspect long-lighting ONU according to the first ONU set, the second ONU set, and the third ONU set;
  • the third determining sub-module is configured to use the suspected long-lighting ONU as the long-lighting ONU if the number of times the suspected long-lighting ONU is the same ONU is greater than the second preset threshold in the detection of the plurality of long-lighting signals.
  • the second determining submodule includes:
  • a first determining unit configured to: if the first ONU set is empty, use the ONU in the third ONU set as a suspect long-light ONU;
  • the second determining unit is configured to: if an intersection of the first ONU set and the second ONU set is not empty, set an intersection of the first ONU set and the second ONU set as a suspect long-light ONU.
  • the detecting device further includes:
  • the sending module is configured to report the long-lighting ONU to the network element management system after the first detecting module detects the long-lighting ONU in the suspicious fault ONU set, so that the network element tube
  • the processing system performs fault processing on the long-lighting ONU.
  • optical line termination comprising a detection device for a long illumination optical network unit as described above.
  • the detection method of the long-light-emitting optical network unit in the embodiment of the present invention after detecting the ONU failure alarm, permanently allocates a time slot for each ONU connected to the OLT, and records the ONU identifier of each ONU and the allocated time slot of the ONU. Corresponding relationship between the two ends; performing long-light signal detection processing on the ONU, acquiring a time slot range corresponding to the ONU long-lighting signal; determining the suspicious fault ONU set according to the above correspondence relationship and the time slot range, and detecting the long in the suspicious fault ONU set Illuminated ONU.
  • the ONU is fixedly allocated time slots, so that the relationship between the ONU identifier and the time slot is relatively fixed, and the ONU set affected by the fault can be determined, and the long-illuminated ONU can be conveniently and quickly realized in the ONU set affected by the fault.
  • the detection and positioning solves the problem that the long-lighting ONU is difficult to locate due to the dynamic change of the ONU uplink grant time slot in the xPON system.
  • FIG. 1 is a first working flowchart of a method for detecting a long-light-emitting optical network unit according to an embodiment of the present invention
  • FIG. 2 is a second working flowchart of a method for detecting a long-light-emitting optical network unit according to an embodiment of the present invention
  • FIG. 3 is a third working flowchart of a method for detecting a long-light-emitting optical network unit according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of a detecting apparatus of a long-light-emitting optical network unit according to an embodiment of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a method for detecting a long-light-emitting optical network unit includes the following steps 11 to 14:
  • Step 11 After detecting the ONU failure alarm of the optical network unit, the OLT allocates a time slot to each ONU connected to the OLT, and records the correspondence between the ONU identifier of each ONU and the allocated time slot of the ONU. .
  • the OLT passive optical network
  • the OLT can detect that the OLT detects the ONU fault alarm.
  • a time slot is fixedly allocated for each ONU connected to the OLT, a time slot is allocated for each ONU connected under the PON port that receives the fault alarm.
  • the OLT may perform fault detection on the ONU according to a predetermined detection period. After the ONU fault alarm is detected, a time slot is fixedly allocated to each ONU connected to the PON port by the fault alarm ONU.
  • the fault alarm here may be an ONU uplink error alarm, a round trip delay RTT drift, or other preset alarm information.
  • a fixed time slot may be allocated to each of the ONUs according to a preset allocation policy, where the preset allocation policy includes, but is not limited to, the bandwidth value corresponding to the time slot allocated by each ONU is greater than the historical average traffic of the ONU. It is recorded that the total bandwidth corresponding to the time slot allocated by the same PON port does not exceed the physical limit of the PON port.
  • the correspondence between the ONU identifier and the allocated time slot of the ONU may include: a correspondence between the LLID and the allocated time slot in the EPON system, and an ONUID and an allocated time slot in the GPON system. Correspondence between the two, and the correspondence between the ONU identifier and the allocated time slot of the ONU remains fixed during long illuminating signal detection.
  • the dynamic bandwidth allocation mode adopted by the OLT can be restored when the ONU fault detection is not required.
  • Step 12 Perform long-light signal detection processing on the ONU to acquire a time slot range corresponding to the ONU long-lighting signal.
  • the long illuminating signal detection is started, According to the PON periodic scanning optical receiver receiving indication signal (including but not limited to the SD signal of the PON optical module or the long illuminating detection count), the time slot range involved in the ONU long illuminating signal is acquired.
  • the PON periodic scanning optical receiver receiving indication signal including but not limited to the SD signal of the PON optical module or the long illuminating detection count
  • Step 13 Determine a suspicious fault ONU set according to a correspondence between the ONU identifier and the allocated time slot of the ONU and a time slot range corresponding to the ONU long illuminating signal.
  • the suspicious fault ONU set may include a long-emission ONU and an ONU affected by a long illumination fault.
  • Step 14 detecting a long-lighting ONU in the suspected fault ONU set.
  • the long-lighting ONU can be detected in the suspicious fault ONU set according to the uplink and downlink information of the ONU and the ONU error information recorded in advance according to the specified period.
  • the detection method of the long-light-emitting optical network unit in the embodiment of the present invention after detecting the ONU failure alarm, permanently allocates a time slot for each ONU connected to the OLT, and records the ONU identifier of each ONU and the allocated time slot of the ONU. Corresponding relationship between the two ends; performing long-light signal detection processing on the ONU, acquiring a time slot range corresponding to the ONU long-lighting signal; determining the suspicious fault ONU set according to the above correspondence relationship and the time slot range, and detecting the long in the suspicious fault ONU set Illuminated ONU.
  • the ONU is fixedly allocated time slots, so that the relationship between the ONU identifier and the time slot is relatively fixed, and the ONU set affected by the fault can be determined, and the long-illuminated ONU can be conveniently and quickly realized in the ONU set affected by the fault.
  • the detection and positioning solve the problem that the xPON system in the related art is difficult to locate the long-lighting ONU due to the dynamic allocation of the ONU uplink grant time slot.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the method for detecting a long-light-emitting optical network unit includes the following steps 21 to 25:
  • Step 21 Record the uplink and downlink information and the ONU error information of each ONU according to a preset recording cycle period.
  • the OLT central office device may record the ONU uplink and downlink information and the online ONU error code information in units of PON ports according to a preset recording period.
  • the ON-line information and the ONU error information of the ONU can be recorded based on the detection result of the long-lighting signal.
  • the relevant ONU information in this period is included in the information of the normal recording period; when the long illuminating signal is detected, the relevant ONU information in the period is counted as the abnormal record.
  • Periodic information is included in the information of the normal recording period.
  • the ONU related information in the normal recording period and the ONU related information in the abnormal recording period may be determined and updated according to the preset policy, where the preset policy includes but is not limited to multiple records.
  • the preset policy includes but is not limited to multiple records.
  • the ONU related information in the normal recording period is updated, for example, the ONU related information in the previous normal recording period is replaced with the ONU related information in the latest normal recording period; the long illumination is detected.
  • the ONU-related information in the abnormal recording period is updated, for example, the ONU-related information in the previous abnormal recording period is replaced with the ONU-related information in the latest abnormal recording period.
  • Step 22 After detecting the ONU failure alarm of the optical network unit, a time slot is fixedly allocated for each ONU connected to the OLT, and the correspondence between the ONU identifier of each ONU and the allocated time slot of the ONU is recorded. relationship.
  • the OLT can detect that the OLT detects the ONU fault alarm.
  • a time slot is fixedly allocated for each ONU connected to the OLT, a time slot is allocated for each ONU connected under the PON port that receives the fault alarm.
  • Step 23 Perform long-light signal detection processing on the ONU to acquire a time slot range corresponding to the ONU long-lighting signal.
  • Step 24 Determine a suspicious fault ONU set according to a correspondence between the ONU identifier and the allocated time slot of the ONU and a time slot range corresponding to the ONU long illuminating signal.
  • Steps 22-24 of the present embodiment are the same as steps 11-13 of the first embodiment, and details are not described herein again.
  • Step 25 detecting a long-lighting ONU in the suspicious fault ONU set according to the uplink and downlink information of each ONU and the ONU error information in the abnormal recording period and the normal recording period.
  • the abnormal recording period is a recording period in which the ONU long lighting signal is detected
  • the normal recording period is a recording period in which the ONU long lighting signal is not detected.
  • the ONU error information of the ONU in the normal recording period is compared with the ONU error information of the ONU in the abnormal recording period, in the suspicious fault ONU set. Obtaining a first ONU set whose ONU error information difference value is smaller than a first preset threshold.
  • the ONU error information of the ONU in the normal recording period and the ONU error information of the ONU error information of the ONU in the abnormal recording period are greater than the first preset threshold, the ONU is not Long luminous ONU.
  • the acquired fault ONU set is acquired in the normal recording period and is maintained in the abnormal recording period.
  • the ONU is a non-long-emitting ONU.
  • a suspected long-emitting ONU is obtained according to the first ONU set, the second ONU set, and the third ONU set.
  • the ONU in the third ONU set is regarded as a suspect long-light ONU; if the intersection of the first ONU set and the second ONU set is not empty, then The intersection of the first ONU set and the second ONU set is regarded as a suspect long-light ONU.
  • the suspected long-lighting ONU is used as the long-lighting ONU.
  • the long-lighting ONU and the other ONUs in the suspected faulty ONU set may be reported to the network element management system (or the network management system and other information) through an alarm or a notification message.
  • the operation and maintenance platform carries the information in the ONU historical registration authentication information table under the PON port, so that the network element management system combines the user account information according to a certain policy. Proactively remotely isolate or locate locations and process them on site.
  • the ONU historical registration authentication information table is maintained by the OLT, and the content includes but is not limited to LLID/ONUID, ONU type, mac address, serial number (SN), logical onu identifier (Loid). .
  • the OLT maintains the ONU online history information table by using the PON port as the unit, and starts the long-light detection by the RTT drift or the ONU uplink error alarm, and the OLT changes the uplink time slot allocation mode to make the long-lighting fault affected range relatively fixed.
  • the long-lighting ONU is located through the relevant strategy, which solves the problem that the long-lighting ONU influence range under the xPON dynamic time slot authorization mechanism in the related art is uncertain, and the long-lighting ONU is difficult to locate.
  • the detection method of the embodiment of the present invention adopts a software mode on the basis of software and hardware to realize detection and positioning of the long-lighting ONU, it is simpler and more flexible, and the cost of solving the problem is also lower.
  • Steps 31 to 38 The detection process of the long-light optical network unit ONU in the embodiment of the present invention is described below with reference to FIG. 3, and the steps are as follows: Steps 31 to 38:
  • Step 31 The OLT records the uplink and downlink information and the ONU error information of each ONU according to a preset recording cycle period.
  • Step 32 If an ONU fault alarm is detected, a time slot is fixedly allocated to each ONU connected to the PON port for the fault alarm ONU, and the correspondence between the ONU identifier of each ONU and the allocated time slot of the ONU is recorded. relationship.
  • the OLT can detect that the OLT detects the ONU fault alarm.
  • a time slot is fixedly allocated for each ONU connected to the OLT, a time slot is allocated for each ONU connected under the PON port that receives the fault alarm.
  • Step 33 Start long illuminating signal detection, and record the time slot range involved in the long illuminating signal according to the PON periodic scanning optical receiver receiving indication signal.
  • Step 34 Determine a suspicious fault ONU set according to the foregoing correspondence relationship and a time slot range corresponding to the ONU long illuminating signal.
  • Step 35 Detecting a suspected long-lighting ONU in the suspicious fault ONU set according to the uplink and downlink information of each ONU and the ONU error information in the abnormal recording period and the normal recording period.
  • Step 36 Determine whether the number of times the suspected long-light ONU detection reaches a preset threshold
  • Step 37 If the preset threshold is reached, it is determined that the number of suspected long-lighting ONUs is greater than the second preset threshold, and the suspected long-emitting ONU is used as the long-lighting ONU. If the preset threshold is not reached, Then go to step 32.
  • Step 38 The above-mentioned long-lighting ONU is reported to the network management system or other operation and maintenance platform through an alarm or notification message.
  • the detection method of the long-light-emitting optical network unit in the embodiment of the present invention after detecting the ONU failure alarm, permanently allocates a time slot for each ONU connected to the OLT, and records the ONU identifier of each ONU and the allocated time slot of the ONU. Corresponding relationship between the two ends; performing long-light signal detection processing on the ONU, acquiring a time slot range corresponding to the ONU long-lighting signal; determining the suspicious fault ONU set according to the above correspondence relationship and the time slot range, and detecting the long in the suspicious fault ONU set Illuminated ONU.
  • the ONU is fixedly allocated time slots, so that the relationship between the ONU identifier and the time slot is relatively fixed, and the ONU set affected by the fault can be determined, and the long-illuminated ONU can be conveniently and quickly realized in the ONU set affected by the fault.
  • the detection and positioning solves the problem that the xPON system in the related art is difficult to locate the long-lighting ONU due to the dynamic change of the ONU uplink authorization slot.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • an embodiment of the present invention further provides a detecting device for a long-light-emitting optical network unit, which can be applied to an optical line terminal OLT, and the detecting device includes:
  • the distribution module 41 is configured to, after detecting the ONU failure alarm of the optical network unit, allocate a time slot to each ONU connected to the OLT, and record the ONU identifier of each of the ONUs and the time slot allocated to the ONU.
  • the OLT can detect that the OLT detects the ONU fault alarm.
  • a time slot is fixedly allocated for each ONU connected to the OLT, a time slot is allocated for each ONU connected under the PON port that receives the fault alarm.
  • the obtaining module 42 is configured to perform long illuminating signal detection processing on the ONU, and acquire a time slot range corresponding to the ONU long illuminating signal;
  • a determining module 43 configured to set a pair according to the ONU identifier and the allocated time slot of the ONU Corresponding to the slot range corresponding to the ONU long illuminating signal, determining a suspicious fault ONU set;
  • the first detecting module 44 is configured to detect a long-lighting ONU in the suspected fault ONU set.
  • the detecting device of the long-light-emitting optical network unit of the embodiment of the present invention includes:
  • the first obtaining submodule 431 is configured to acquire, in the fixed allocated time slot, a long illuminating signal time slot in the time slot range;
  • the second obtaining sub-module 432 is configured to acquire an ONU identifier corresponding to the long-lighting signal time slot according to the correspondence between the ONU identifier and the allocated time slot of the ONU;
  • the first determining submodule 433 is configured to determine the suspicious fault ONU set according to the ONU identifier corresponding to the long lighting signal slot.
  • the detecting device of the long-light-emitting optical network unit of the embodiment of the present invention may further include:
  • the recording module 45 is configured to record the uplink and downlink information and the ONU error information of each ONU according to a preset recording cycle period.
  • the first detecting module 44 is configured to set the uplink and downlink information and the ONU error information of each ONU according to an abnormal recording period and a normal recording period.
  • the long-lighting ONU is detected in the suspicious fault ONU set, and the abnormal recording period is a recording period in which the ONU long-lighting signal is detected, and the normal recording period is a recording period in which the ONU long-lighting signal is not detected.
  • the first detecting module 44 may include:
  • the third obtaining submodule 441 is configured to compare the ONU error information of the ONU in the normal recording period with the ONU error information of the ONU in the abnormal recording period, in the suspicious fault ONU set Obtaining, in the first ONU set, that the difference value of the ONU error information is smaller than the first preset threshold;
  • the fourth obtaining submodule 442 is configured to acquire, in the suspicious fault ONU set, the positive in the normal recording period and the ONU uplink and offline information in the abnormal recording period. a second ONU set that is online during a normal recording period and that remains online during an abnormal recording period and a third ONU set that is dropped during the normal recording period and remains offline during an abnormal recording period;
  • the second determining sub-module 443 is configured to obtain a suspect long-lighting ONU according to the first ONU set, the second ONU set, and the third ONU set;
  • the third determining sub-module 444 is configured to use the suspected long-lighting ONU as the long-lighting ONU if the number of times the suspected long-lighting ONU is the same ONU is greater than the second preset threshold in the multiple suspected long-lighting ONU detection.
  • the second determining sub-module 443 may include:
  • the first determining unit 4431 is configured to: if the first ONU set is empty, use the ONU in the third ONU set as a suspect long-light ONU;
  • the second determining unit 4432 is configured to: if the intersection of the first ONU set and the second ONU set is not empty, use the intersection of the first ONU set and the second ONU set as a suspect long-light ONU .
  • the detecting device of the long-light-emitting optical network unit of the embodiment of the present invention may further include:
  • the sending module 46 is configured to report the long-lighting ONU to the network element management system after the first detecting module detects the long-lighting ONU in the suspected faulty ONU set, so that the network element management system The long-emitting ONU performs fault processing.
  • the device is a device corresponding to the foregoing method embodiment, and all implementations in the foregoing method embodiments are applicable to the embodiment of the device, and the same technical effects can be achieved.
  • Embodiments of the present invention also provide an optical line terminal, including the detection device of the long-light-emitting optical network unit as described above.
  • the method, the device and the optical line terminal of the long-light-emitting optical network unit of the embodiment of the present invention automatically allocate a time slot for each ONU connected to the OLT, and record the ONU identifier of each ONU.
  • the ONU is assigned a correspondence relationship between time slots; performing long-light signal detection processing on the ONU to acquire a time slot range corresponding to the ONU long-lighting signal; determining a suspicious fault ONU set according to the above correspondence relationship and the time slot range and in the suspicious fault A long-lighting ONU is detected in the ONU set.
  • the ONU is fixedly allocated time slots, so that the relationship between the ONU identifier and the time slot is relatively fixed, and the ONU set affected by the fault can be determined, and the long-illuminated ONU can be conveniently and quickly realized in the ONU set affected by the fault.
  • the detection and positioning solves the problem that the xPON system in the related art is difficult to locate the long-lighting ONU due to the dynamic change of the ONU uplink authorization slot.

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Abstract

一种长发光光网络单元的检测方法、装置及光线路终端，其中，该方法包括：检测到ONU故障告警后，为与OLT通信连接的每个ONU固定分配一时隙，记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；根据ONU标识与该ONU被分配时隙之间的对应关系及ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；在可疑故障ONU集合中检测出长发光ONU。

Description

一种长发光光网络单元的检测方法、装置及光线路终端 技术领域
本文涉及但不限于通信应用的技术领域，尤其涉及一种长发光光网络单元的检测方法、装置及光线路终端。
背景技术
在无源光网络的xPON网络中，常见组网系统一般由网元管理系统(Element Management System，EMS)，光线路终端(optical line terminal，OLT)、光分配网络(Optical Distribution Network，ODN)和若干个光网络单元(Optical Network Unit，ONU)组成，OLT作为中心局端设备通过ODN网络连接汇聚多个ONU设备，ONU设备实现用户业务的接入，实现数据业务和配置管理等功能。xPON网络作为“点对多点”的拓扑结构：从OLT到ONU的传输方向为下行方向，下行方向采用广播方式发送数据，由ONU根据数据标识判断数据是否有效并决定接收或丢弃；从ONU到OLT的传输方向为上行方向，上行方向采用时分多址接入方式(Time Division Multiple Access，TDMA)，ONU必须根据OLT分配的上行带宽时隙(Bandwidth Map，Bwmap)来发送上行突发Burst信号。
在xPON网络中，在OLT控制下以PON口为单位为每个ONU分配一个唯一的标识作为ONU的链路标识，如以太无源光网络(Ethernet Passive Optical Network，EPON)系统中采用逻辑链路标记(Logical Link Identifier，LIID)作为ONU的唯一标识，如无源光接入系统(Gigabit-Capable PON，GPON)中采用ONU标识(ONU Identifier，ID)作为ONU的唯一标识。在ONU有上行数据需要发送时，xPON局端设备根据该ONU标识为ONU分配授权时隙。
在上述xPON网络中，ONU在OLT控制分配(基于ONU标识)的不同上行时隙发送数据，各个时隙之间互相独立。当OLT某PON口下的某些ONU工作异常，在不属于自己的授权时隙内发送数据时，将对该PON口使用正常分配时隙工作的ONU上行发送数据造成干扰。导致无法恢复出正常数据，产 生上行丢包；并可能导致测距异常，出现环路时延漂移；导致相关受干扰ONU离线。
由于xPON OLT采用动态的带宽分配方式且ONU标识一般也是动态分配的，因此导致ONU授权时隙是动态变化的，使得长发光ONU的影响范围是不确定的，导致检测定位长发光ONU十分困难。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供一种长发光光网络单元的检测方法、装置及光线路终端，可以解决xPON系统中由于ONU上行授权时隙动态变化导致长发光ONU定位难的问题。
本文提供了一种长发光光网络单元的检测方法，应用于光线路终端OLT，所述检测方法包括：
检测到光网络单元ONU故障告警后，为与光线路终端OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；
对所述ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；
根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；
在所述可疑故障ONU集合中检测出长发光ONU。
可选地，上述检测方法中，所述根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合，包括：
在为与所述OLT通信连接的每个ONU固定分配的时隙中，获取处于所述ONU长发光信号对应的时隙范围内的长发光信号时隙；
根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述 长发光信号时隙对应的ONU标识；
根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
可选地，上述检测方法中，在所述检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个所述ONU的ONU标识与该ONU被分配时隙之间的对应关系的步骤前，还包括：
按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
可选地，上述检测方法中，所述在所述可疑故障ONU集合中检测出长发光ONU，包括：
根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，所述异常的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
可选地，上述检测方法中，所述根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，包括：
将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合；
根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合；
根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU；
若在多次长发光信号检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
可选地，上述检测方法中，所述根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU，包括：
若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；
若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
可选地，上述检测方法中，在所述可疑故障ONU集合中检测出长发光ONU后，还包括：
将所述长发光ONU上报给网元管理系统，使所述网元管理系统对所述长发光ONU进行故障处理。
本文还公开了一种长发光光网络单元的检测装置，包括：
分配模块，设置为检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；
获取模块，设置为对所述ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；
确定模块，设置为根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；
第一检测模块，设置为在所述可疑故障ONU集合中检测出长发光ONU。
可选地，上述检测装置中，所述确定模块包括：
第一获取子模块，设置为在与所述OLT通信连接的每个ONU固定分配的时隙中，获取处于所述ONU长发光信号对应的时隙范围内的长发光信号时隙；
第二获取子模块，设置为根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述长发光信号时隙对应的ONU标识；
第一确定子模块，设置为根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
可选地，上述检测装置，还包括：
记录模块，设置为按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
可选地，上述检测装置中，所述第一检测模块在所述可疑故障ONU集合 中检测出长发光ONU包括：
根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，所述异常的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
可选地，上述检测装置中，所述第一检测模块包括：
第三获取子模块，设置为将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合；
第四获取子模块，设置为根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合；
第二确定子模块，设置为根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU；
第三确定子模块，设置为若多次长发光信号检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
可选地，上述检测装置中，所述第二确定子模块包括：
第一确定单元，设置为若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；
第二确定单元，设置为若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
可选地，上述检测装置，还包括：
发送模块，设置为在所述第一检测模块在所述可疑故障ONU集合中检测出长发光ONU后，将所述长发光ONU上报给网元管理系统，使所述网元管 理系统对所述长发光ONU进行故障处理。
本文还公开了一种光线路终端，包括如上所述的长发光光网络单元的检测装置。
本发明实施例的长发光光网络单元的检测方法，检测到ONU故障告警后，为与OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；根据上述对应关系及时隙范围，确定可疑故障ONU集合并在可疑故障ONU集合中检测出长发光ONU。本发明实施例为ONU固定分配时隙，使得ONU标识与时隙之间的关系相对固定，能够确定受故障影响的ONU集合，能够在受故障影响的ONU集合中方便快捷地实现长发光ONU的检测与定位，解决了xPON系统中由于ONU上行授权时隙动态变化导致长发光ONU定位难的问题。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例的长发光光网络单元的检测方法的第一种工作流程图；
图2为本发明实施例的长发光光网络单元的检测方法的第二种工作流程图；
图3为本发明实施例的长发光光网络单元的检测方法的第三种工作流程图；
图4为本发明实施例的长发光光网络单元的检测装置的结构框图。
本发明的实施方式
下文中将结合附图对本文的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
实施例一：
如图1所示，本发明实施例的长发光光网络单元的检测方法，包括如下步骤11至14：
步骤11：OLT检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系。其中，OLT的某一个或多个PON(无源光纤网络)口收到故障告警时，即可以认为OLT检测到ONU故障告警。为与所述OLT通信连接的每个ONU固定分配一时隙时，是为收到故障告警的PON口下连接的每个ONU分配时隙。
可选地，本发明实施例中，OLT可以按照预定检测周期对ONU进行故障检测，在检测到ONU故障告警后，为故障告警ONU对应PON口所连接的每个ONU固定分配一时隙。可选地，这里的故障告警可以为ONU上行误码告警、往返时延RTT漂移或其他预设告警信息。
可选地，可以根据预设分配策略为每个所述ONU分配固定时隙，其中，该预设分配策略包括但不限于：每个ONU所分配时隙对应的带宽值大于该ONU历史平均流量记录，同一PON口所分配时隙对应的带宽总额不超过该PON口的物理限制等。
在一个可选实施例中，ONU标识与该ONU被分配时隙之间的对应关系可以包括：EPON系统中LLID与被分配时隙之间的对应关系及GPON系统中ONUID与被分配时隙之间的对应关系，且ONU标识与该ONU被分配时隙之间的对应关系在长发光信号检测期间保持固定。
可选地，在无需进行ONU故障检测时，可以恢复OLT所采用的动态带宽分配方式。
步骤12：对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围。
可选地，在上述每个ONU固定分配一时隙之后，启动长发光信号检测， 根据PON周期性扫描光接收机的接收指示信号(包括但不限于PON光模块的SD信号、或长发光检测计数)，获取ONU长发光信号涉及的时隙范围。
步骤13：根据ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合。
可选地，在所固定分配的时隙中，获取处于所述时隙范围内的长发光信号时隙；然后根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述长发光信号时隙对应的ONU标识；根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
可选地，可疑故障ONU集合可以包括长发光ONU及受长发光故障影响的ONU。
步骤14：在所述可疑故障ONU集合中检测出长发光ONU。
在一个可选实施例中，可以根据预先按照指定周期记录的ONU的上下线信息及ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU。
本发明实施例的长发光光网络单元的检测方法，检测到ONU故障告警后，为与OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；根据上述对应关系及时隙范围，确定可疑故障ONU集合并在可疑故障ONU集合中检测出长发光ONU。本发明实施例为ONU固定分配时隙，使得ONU标识与时隙之间的关系相对固定，能够确定受故障影响的ONU集合，能够在受故障影响的ONU集合中方便快捷地实现长发光ONU的检测与定位，解决了相关技术中xPON系统由于ONU上行授权时隙动态分配导致长发光ONU定位难的问题。
实施例二：
如图2所示，本发明实施例的长发光光网络单元的检测方法，包括如下步骤21至25：
步骤21：按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
可选地，在本发明实施例中，OLT局端设备可以按照预设的记录周期并以PON口为单位记录ONU的上下线信息及在线ONU误码信息。例如，可以根据长发光信号的检测结果记录ONU的上下线信息及ONU误码信息。在当前的记录周期内未检测到长发光信号时，将此周期内相关ONU信息计入正常的记录周期的信息；当检测到长发光信号时，将此周期内相关ONU信息计入异常的记录周期的信息。可选地，本发明实施例中还可以根据预设策略制定并更新正常的记录周期内的ONU相关信息及异常的记录周期内的ONU相关信息，该预设策略包括但不限于在多个记录周期未检测到长发光信号时，更新正常的记录周期内的ONU相关信息，如，用最新的正常的记录周期内的ONU相关信息替换之前正常的记录周期内的ONU相关信息；检测到长发光信号时，更新异常的记录周期内的ONU相关信息，如，用最新异常的记录周期内的ONU相关信息替换之前异常的记录周期内的ONU相关信息。通过上述记录方法，能够用最小的系统资源记录所有可能需要用到的历史信息，达到节省内存空间的目的。
步骤22：检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个所述ONU的ONU标识与该ONU被分配时隙之间的对应关系。
其中，OLT的某一个或多个PON(无源光纤网络)口收到故障告警时，即可以认为OLT检测到ONU故障告警。为与所述OLT通信连接的每个ONU固定分配一时隙时，是为收到故障告警的PON口下连接的每个ONU分配时隙。
步骤23：对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围。
步骤24：根据ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合。
其中，本实施例的步骤22-24与第一实施例的步骤11-13相同，此处不再赘述。
步骤25：根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU， 所述异常的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
在一个可选实施例中，将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合。
此处，若正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息的ONU误码信息差异值大于第一预设阈值，则说明该ONU为非长发光ONU。
接着，根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合。
若根据异常的记录周期内的ONU上下线信息判断出可疑故障ONU集合中的某一ONU在该异常的记录周期内出现掉线，则说明该ONU为非长发光ONU。
根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU。
例如，若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
若多次疑似长发光ONU检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
可选地，本发明实施例中，在确定出长发光ONU后，可以将长发光ONU及所述可疑故障ONU集合中的其他ONU通过告警或通知消息上报给网元管理系统(或网管及其他运维平台)，并携带其在PON口下的ONU历史注册认证信息表中的信息，使得网元管理系统根据一定策略并结合用户账号信息， 主动远程隔离或查找位置并现场处理。其中，上述ONU历史注册认证信息表由OLT进行维护，其内容包括但不限于LLID/ONUID、ONU类型、mac地址、序列号(Serial Number，SN)、逻辑链路标识(logical onu identifier，Loid)。
本发明实施例中，OLT维护以PON口为单位维护ONU上线历史信息表，通过RTT漂移或ONU上行误码告警启动长发光检测，由OLT改变上行时隙分配方式使长发光故障影响范围相对固定，并通过相关策略定位长发光ONU，解决了相关技术中xPON动态时隙授权机制下的长发光ONU影响范围不确定，并使得长发光ONU定位困难的问题。另外，由于本发明实施例的检测方法是在软硬件基础上采取软件方式来实现对长发光ONU的检测定位，因此更加简单和灵活，解决问题的成本也较低。
下面结合图3来说明本发明实施例的长发光光网络单元ONU的检测流程，步骤如下步骤31至38：
步骤31：OLT按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
步骤32：若检测到ONU故障告警，则为故障告警ONU对应PON口所连接的每个ONU固定分配一时隙，并记录每个所述ONU的ONU标识与该ONU被分配时隙之间的对应关系。
其中，OLT的某一个或多个PON(无源光纤网络)口收到故障告警时，即可以认为OLT检测到ONU故障告警。为与所述OLT通信连接的每个ONU固定分配一时隙时，是为收到故障告警的PON口下连接的每个ONU分配时隙。
步骤33：启动长发光信号检测，根据PON周期性扫描光接收机的接收指示信号，记录长发光信号涉及的时隙范围。
步骤34：根据上述对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合。
步骤35：根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在可疑故障ONU集合中检测出疑似长发光ONU。
步骤36：判断疑似长发光ONU检测次数是否达到预设门限值；
步骤37：若达到预设门限值，则判断疑似长发光ONU为同一ONU的次数大于第二预设阈值，则将该疑似长发光ONU作为长发光ONU，若未达到预设门限值，则跳转到步骤32。
步骤38：将上述长发光ONU通过告警或通知消息上报网管或其他运维平台。
本发明实施例的长发光光网络单元的检测方法，检测到ONU故障告警后，为与OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；根据上述对应关系及时隙范围，确定可疑故障ONU集合并在可疑故障ONU集合中检测出长发光ONU。本发明实施例为ONU固定分配时隙，使得ONU标识与时隙之间的关系相对固定，能够确定受故障影响的ONU集合，能够在受故障影响的ONU集合中方便快捷地实现长发光ONU的检测与定位，解决了相关技术中xPON系统由于ONU上行授权时隙动态变化导致长发光ONU定位难的问题。
实施例三：
如图4所示，本发明的实施例还提供了一种长发光光网络单元的检测装置，可以应用于光线路终端OLT，所述检测装置包括：
分配模块41，设置为检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个所述ONU的ONU标识与该ONU被分配时隙之间的对应关系；
其中，OLT的某一个或多个PON(无源光纤网络)口收到故障告警时，即可以认为OLT检测到ONU故障告警。为与所述OLT通信连接的每个ONU固定分配一时隙时，是为收到故障告警的PON口下连接的每个ONU分配时隙。
获取模块42，设置为对所述ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；
确定模块43，设置为根据所述ONU标识与该ONU被分配时隙之间的对 应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；
第一检测模块44，设置为在所述可疑故障ONU集合中检测出长发光ONU。
可选地，本发明实施例的长发光光网络单元的检测装置，所述确定模块43包括：
第一获取子模块431，设置为在所固定分配的时隙中，获取处于所述时隙范围内的长发光信号时隙；
第二获取子模块432，设置为根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述长发光信号时隙对应的ONU标识；
第一确定子模块433，设置为根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
可选地，本发明实施例的长发光光网络单元的检测装置，所述检测装置还可以包括：
记录模块45，设置为按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
本发明实施例的长发光光网络单元的检测装置，所述第一检测模块44设置为据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，所述异常的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
可选地，本发明实施例的长发光光网络单元的检测装置，所述第一检测模块44可以包括：
第三获取子模块441，设置为将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合；
第四获取子模块442，设置为根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正 常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合；
第二确定子模块443，设置为根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU；
第三确定子模块444，设置为若多次疑似长发光ONU检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
可选地，本发明实施例的长发光光网络单元的检测装置，所述第二确定子模块443可以包括：
第一确定单元4431，设置为若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；
第二确定单元4432，设置为若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
可选地，本发明实施例的长发光光网络单元的检测装置，所述检测装置还可以包括：
发送模块46，设置为所述第一检测模块在所述可疑故障ONU集合中检测出长发光ONU之后，将所述长发光ONU上报给网元管理系统，使所述网元管理系统对所述长发光ONU进行故障处理。
需要说明的是，该装置是与上述方法实施例对应的装置，上述方法实施例中所有实现方式均适用于该装置的实施例中，也能达到相同的技术效果。
本发明实施例还提供了一种光线路终端，包括如上所述的长发光光网络单元的检测装置。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分 步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的模块/单元可以采用硬件的形式实现，例如通过集成电路来实现其相应功能，也可以采用软件功能模块的形式实现，例如通过处理器执行存储于存储器中的程序指令来实现其相应功能。本申请不限制于任何特定形式的硬件和软件的结合。
工业实用性
本发明实施例的长发光光网络单元的检测方法、装置及光线路终端，检测到ONU故障告警后，为与OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；对ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；根据上述对应关系及时隙范围，确定可疑故障ONU集合并在可疑故障ONU集合中检测出长发光ONU。本发明实施例为ONU固定分配时隙，使得ONU标识与时隙之间的关系相对固定，能够确定受故障影响的ONU集合，能够在受故障影响的ONU集合中方便快捷地实现长发光ONU的检测与定位，解决了相关技术中xPON系统由于ONU上行授权时隙动态变化导致长发光ONU定位难的问题。

Claims (15)

  1. 一种长发光光网络单元的检测方法，包括：
    检测到光网络单元ONU故障告警后，为与光线路终端OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；
    对所述ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；
    根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；
    在所述可疑故障ONU集合中检测出长发光ONU。
  2. 根据权利要求1所述的长发光光网络单元的检测方法，其中，所述根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合，包括：
    在为与所述OLT通信连接的每个ONU固定分配的时隙中，获取处于所述ONU长发光信号对应的时隙范围内的长发光信号时隙；
    根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述长发光信号时隙对应的ONU标识；
    根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
  3. 根据权利要求1所述的长发光光网络单元的检测方法，其中，在所述检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个所述ONU的ONU标识与该ONU被分配时隙之间的对应关系的步骤前，还包括：
    按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
  4. 根据权利要求3所述的长发光光网络单元的检测方法，其中，所述在所述可疑故障ONU集合中检测出长发光ONU，包括：
    根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和 ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，所述异常的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
  5. 根据权利要求4所述的长发光光网络单元的检测方法，其中，所述根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，包括：
    将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合；
    根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合；
    根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU；
    若在多次长发光信号检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
  6. 根据权利要求5所述的长发光光网络单元的检测方法，其中，所述根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU，包括：
    若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；
    若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
  7. 根据权利要求1至6任一项所述的长发光光网络单元的检测方法，其中，在所述可疑故障ONU集合中检测出长发光ONU后，还包括：
    将所述长发光ONU上报给网元管理系统，使所述网元管理系统对所述长 发光ONU进行故障处理。
  8. 一种长发光光网络单元的检测装置，包括：
    分配模块，设置为检测到光网络单元ONU故障告警后，为与所述OLT通信连接的每个ONU固定分配一时隙，并记录每个ONU的ONU标识与该ONU被分配时隙之间的对应关系；
    获取模块，设置为对所述ONU进行长发光信号检测处理，获取与ONU长发光信号对应的时隙范围；
    确定模块，设置为根据所述ONU标识与该ONU被分配时隙之间的对应关系及所述ONU长发光信号对应的时隙范围，确定可疑故障ONU集合；
    第一检测模块，设置为在所述可疑故障ONU集合中检测出长发光ONU。
  9. 根据权利要求8所述的长发光光网络单元的检测装置，其中，所述确定模块包括：
    第一获取子模块，设置为在与所述OLT通信连接的每个ONU固定分配的时隙中，获取处于所述ONU长发光信号对应的时隙范围内的长发光信号时隙；
    第二获取子模块，设置为根据所述ONU标识与该ONU被分配时隙之间的对应关系，获取与所述长发光信号时隙对应的ONU标识；
    第一确定子模块，设置为根据与所述长发光信号时隙对应的ONU标识，确定可疑故障ONU集合。
  10. 根据权利要求8所述的长发光光网络单元的检测装置，还包括：
    记录模块，设置为按照预设的记录周期周期记录每个ONU的上下线信息和ONU误码信息。
  11. 根据权利要求10所述的长发光光网络单元的检测装置，其中，所述第一检测模块在所述可疑故障ONU集合中检测出长发光ONU包括：
    根据异常的记录周期内及正常的记录周期内每个ONU的上下线信息和ONU误码信息，在所述可疑故障ONU集合中检测出长发光ONU，所述异常 的记录周期为检测到ONU长发光信号的记录周期，所述正常的记录周期为未检测到ONU长发光信号的记录周期。
  12. 根据权利要求11所述的长发光光网络单元的检测装置，其中，所述第一检测模块包括：
    第三获取子模块，设置为将所述正常的记录周期内ONU的ONU误码信息与所述异常的记录周期内该ONU的ONU误码信息进行比对处理，在所述可疑故障ONU集合中获取ONU误码信息差异值小于第一预设阈值的第一ONU集合；
    第四获取子模块，设置为根据所述正常的记录周期内及所述异常的记录周期内的ONU上下线信息，在所述可疑故障ONU集合中获取在所述正常的记录周期内上线并且在异常的记录周期内保持在线状态的第二ONU集合及在所述正常的记录周期内掉线并且在异常的记录周期内保持离线状态的第三ONU集合；
    第二确定子模块，设置为根据所述第一ONU集合、所述第二ONU集合和所述第三ONU集合，得到疑似长发光ONU；
    第三确定子模块，设置为若多次长发光信号检测中，检测出的疑似长发光ONU为同一ONU的次数大于第二预设阈值，将所述疑似长发光ONU作为长发光ONU。
  13. 根据权利要求12所述的长发光光网络单元的检测装置，其中，所述第二确定子模块包括：
    第一确定单元，设置为若所述第一ONU集合为空，则将所述第三ONU集合中的ONU作为疑似长发光ONU；
    第二确定单元，设置为若所述第一ONU集合和所述第二ONU集合的交集不为空，则将所述第一ONU集合和所述第二ONU集合的交集作为疑似长发光ONU。
  14. 根据权利要求8至13任一项所述的长发光光网络单元的检测装置，还包括：
    发送模块，设置为在所述第一检测模块在所述可疑故障ONU集合中检测出长发光ONU后，将所述长发光ONU上报给网元管理系统，使所述网元管理系统对所述长发光ONU进行故障处理。
  15. 一种光线路终端，包括如权利要求8-14任一项所述的长发光光网络单元的检测装置。
PCT/CN2016/091619 2016-03-30 2016-07-25 一种长发光光网络单元的检测方法、装置及光线路终端 WO2017166546A1 (zh)

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