WO2017079894A1 - Procédé de commande d'unité de réseau optique indésirable, appareil associé, et réseau optique passif - Google Patents

Procédé de commande d'unité de réseau optique indésirable, appareil associé, et réseau optique passif Download PDF

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Publication number
WO2017079894A1
WO2017079894A1 PCT/CN2015/094192 CN2015094192W WO2017079894A1 WO 2017079894 A1 WO2017079894 A1 WO 2017079894A1 CN 2015094192 W CN2015094192 W CN 2015094192W WO 2017079894 A1 WO2017079894 A1 WO 2017079894A1
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WIPO (PCT)
Prior art keywords
onu
wavelength terminal
wavelength
terminal
interference signal
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PCT/CN2015/094192
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English (en)
Chinese (zh)
Inventor
赵殿博
高波
高建河
彭桂开
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华为技术有限公司
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Priority to PCT/CN2015/094192 priority Critical patent/WO2017079894A1/fr
Publication of WO2017079894A1 publication Critical patent/WO2017079894A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a rogue optical network unit management method and related equipment and a passive optical network.
  • Passive Optical Network (PON) technology is a point-to-multipoint optical fiber transmission and access technology.
  • the downlink generally adopts the broadcast mode
  • the uplink generally adopts the time division multiple access method, and can flexibly form a topology structure such as a tree type, a star type, and a bus type.
  • TWDM-PON-Time and Wavelength-Division Multiplexed-PON (WDM) is the technology choice for next-generation fiber access.
  • WDM-PON technology can help network operators achieve open source and throttling.
  • FIG. 1 shows a topology of a TWDM-PON.
  • the TWDM-PON structure shown in FIG. 1 includes an optical network unit (ONU) 103 on the user side, an optical distribution network 102, and an optical line terminal (OLT).
  • the OLT may include multiple One wavelength terminal (CT, channel terminal) 101, CT101a, and the like.
  • CT One wavelength terminal
  • Passive means that the optical distribution network (ODN) does not contain any active electronic devices and electronic power sources, all of which are composed of passive components such as optical splitters, so they are managed. The cost of maintenance is lower.
  • the ONU provides a user-side interface for the TWDM-PON. If the ONU directly provides the user port function (for example, an Ethernet user port used by a personal computer), the ONU can also be called an optical network terminal (ONT, Optical). Network Terminal).
  • the ONUs mentioned below refer to ONUs and ONTs unless otherwise specified.
  • the ODN is used to connect the OLT and the ONU for distributing or multiplexing signals between the OLT and the ONU.
  • the OLT provides a network side interface for the TWDM-PON, and the OLT connects one or more ODNs.
  • the OLT to the ONU is called downlink; otherwise, it is uplinked from the ONU to the OLT.
  • TWDM-PON supports multiple pairs of working wavelengths (such as 4 pairs or 8 pairs) under the same ODN; OLT can send and receive multiple pairs of wavelengths at the same time; ONU can only send and receive a pair of wavelengths at the same time, but ONU can be at different wavelengths Switch between.
  • CTs of different wavelengths are allowed to be located at different locations, for example, in different central office rooms (CO, Central Office), boards or chassis.
  • CO central office rooms
  • CO Central Office
  • the TWDM-PON is a multi-wavelength system
  • the rogue ONU refers to an ONU that does not emit light at a predetermined time slot or a predetermined wavelength, wherein An ONU that does not emit light at a prescribed wavelength may also be referred to as a cross-wavelength flowing ONU. How to identify the rogue ONU in a feasible and effective manner is an important technical subject to be studied by those skilled in the art.
  • the embodiment of the invention provides a rogue ONU management method and related equipment and a PON, so as to be able to effectively identify the rogue ONU.
  • a first aspect of the present invention provides a control method for a rogue optical network unit ONU, including: a first wavelength terminal that detects an interference signal broadcasts an ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate a wavelength terminal that detects an interference signal. Terminating an uplink bandwidth grant of the ONU that generates the interference signal; the first wavelength terminal terminates an uplink bandwidth grant of the remaining ONUs other than the first ONU that generates the interference signal; the first wavelength terminal broadcasts the first interference detection request message, The first interference detection request message is used to indicate that the wavelength terminal performs interference signal detection; and the first wavelength terminal receives the first interference detection result from the second wavelength terminal for responding to the first interference detection request message. a message, and the first interference detection result message indicates that the second wavelength terminal detects the presence of an interference signal, and the first wavelength terminal determines that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates the interference signal.
  • Upstream bandwidth grant of the ONU after the first wavelength terminal terminates generating an uplink bandwidth grant of the remaining ONUs other than the first ONU among the interference signal ONUs, if the indication from the second wavelength terminal is received, the second After the wavelength terminal detects the first interference detection result message of the interference signal, the first ONU may be initially determined to be a rogue ONU, because the first wavelength terminal is terminated according to the termination of the interference of the other wavelength terminal at the first wavelength terminal.
  • the interference signals before and after the upstream bandwidth grant of the remaining ONUs other than the first ONU are Whether or not the first ONU is a rogue ONU, the mechanism can effectively determine whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU.
  • the method further includes: the first wavelength terminal terminates an uplink bandwidth grant of the first ONU, and sends a second interference detection request to the second wavelength terminal.
  • Determining, by the first wavelength terminal, that the first ONU is a rogue ONU includes: receiving, at the first wavelength terminal, a second interference detection from the second wavelength terminal for responding to the second interference detection request message And the first wavelength terminal determines that the first ONU is a rogue ONU, in a case that the second interference detection result message indicates that the second wavelength terminal detects that the interference signal disappears.
  • the first wavelength terminal terminates the uplink bandwidth grant of the first ONU, and broadcasts or unicasts the interference detection request message again, and uses the second interference detection result message to further confirm whether the first ONU is a rogue ONU.
  • this double confirmation mechanism it is beneficial to improve the recognition accuracy of the rogue ONU.
  • the method further includes: the first wavelength terminal isolating the first ONU.
  • the first bandwidth terminal terminates the uplink bandwidth grant of the remaining ONUs other than the first ONU that generates the interference signal, and the first wavelength terminal terminates the remaining ONU except the first ONU that generates the burst message loss LOBi alarm. Upstream bandwidth authorization.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • a second aspect of the present invention provides a control method for a rogue optical network unit ONU, including: a first wavelength terminal that detects an interference signal sends an ONU silence message to a second wavelength terminal, where the ONU silence message indicates the second The wavelength terminal terminates the uplink bandwidth grant of the first ONU that generates the interference signal;
  • the first wavelength terminal detects that the interference signal disappears, the first wavelength terminal sends an interference detection result message indicating that the detected interference signal disappears to the second wavelength terminal, and the interference detection result message is
  • the second wavelength terminal is configured to determine that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the first ONU that generates the interference signal by indicating the second wavelength terminal, and generates the interference signal according to the termination of the second wavelength terminal.
  • the first ONU is a rogue ONU is inferred whether the first ONU is a rogue ONU before or after the uplink bandwidth authorization of the first ONU, and this mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the comparison. Effectively identify rogue ONUs.
  • the method before the first wavelength terminal sends the ONU silence message to the second wavelength terminal, the method further includes: the first wavelength terminal is terminated. Upstream bandwidth grant of the ONU that interferes with the signal;
  • the sending, by the first wavelength terminal, the ONU silence message to the second wavelength terminal includes: when the first wavelength terminal detects that the interference signal still exists, the first wavelength terminal sends an ONU silence message to the second wavelength terminal.
  • the first wavelength terminal terminates the uplink bandwidth authorization of the ONU that generates the interference signal, which is beneficial to minimize the ONU pair that generates the interference signal attached to the second wavelength terminal.
  • the influence of the detection result is further beneficial to further improve the accuracy and efficiency of identifying the rogue ONU.
  • the method further includes: receiving, by the first wavelength terminal, a burst message loss LOBi alarm notification message sent by the second wavelength terminal, where the LOBi alarm notification message is used to indicate that the second wavelength terminal detects an attachment to the second wavelength terminal.
  • the ONU of the second wavelength terminal generates a LOBI alarm.
  • the method before the first wavelength terminal receives the LOBi alarm notification message sent by the second wavelength terminal, the method further includes: the first wavelength terminal broadcasts a rogue ONU diagnostic request, and the LOBi alarm notification message is used to respond to the rogue ONU diagnostic request.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • a control method for a rogue optical network unit ONU includes:
  • the first wavelength terminal that detects the interference signal broadcasts an ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal;
  • the first wavelength terminal terminates generating an uplink bandwidth grant of the first ONU among the interference signals ONU;
  • the first wavelength detection terminal receives the first interference detection result message from the second wavelength terminal, and the first interference detection result message indicates that the second wavelength terminal detects that the interference signal disappears, the first wavelength terminal Determining that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal (such as the LOBI alarm) initiates the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates the interference signal.
  • the uplink bandwidth grant of the ONU after the first wavelength terminal terminates generating the uplink bandwidth grant of the first ONU among the interference signal ONUs, if receiving the indication from the second wavelength terminal, the second wavelength terminal detects that the interference signal disappears
  • the first interference detection result message may be used to determine that the first ONU is a rogue ONU, because the first wavelength terminal is based on the interference of the upstream bandwidth of the first ONU that terminates the interference signal generated by the other wavelength terminal at the first wavelength terminal. Whether the signal is lost or not, to infer whether the first ONU is a rogue ONU, this mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU.
  • the method further includes: the first wavelength terminal broadcasts an ONU silence message, and the first interference detection result message is received by the second wavelength terminal by the ONU silent message Then send it.
  • the first interference detection result message is used to respond to the ONU silence message
  • the interference detection result indicates that the second wavelength terminal detects that the interference signal disappears after the uplink bandwidth authorization of the ONU that generated the interference signal is terminated based on the rogue ONU diagnosis request.
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message disappear;
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message There is an indication that the interference signal disappears after receiving the ONU silence message.
  • the method further includes: the first wavelength terminal isolating the first ONU.
  • a fourth aspect of the present invention provides a control method for a rogue optical network unit ONU, including:
  • the first wavelength terminal that detects the interference signal broadcasts an ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal;
  • the first wavelength terminal sends an ONU enable message to the second wavelength terminal, where the ONU enable message indicates that the second wavelength terminal enables the uplink bandwidth grant of the first ONU that generates the interference signal;
  • the first wavelength terminal detects that an interference signal exists, the first wavelength terminal sends, to the second wavelength terminal, an interference detection result message indicating that the interference signal is detected, and the interference detection result message is the second
  • the wavelength terminal is configured to determine that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate that the interference signal is detected (for example, the LOBY alarm).
  • the wavelength terminal terminates an uplink bandwidth grant of the ONU that generates an interference signal (eg, a LOBI alarm), and the first wavelength terminal instructs the second wavelength terminal to enable the generation of the interference signal by transmitting an ONU enable message to the second wavelength terminal.
  • the first wavelength terminal After the uplink bandwidth grant of the ONU, the first wavelength terminal performs interference signal detection, and the first wavelength terminal sends an interference indicating that the interference signal is detected to the second wavelength terminal, if the interference signal is detected to exist.
  • the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU, and it can be seen that the mechanism can effectively determine whether the first ONU is a rogue ONU, thereby facilitating More effective identification of rogue ONUs.
  • the method before or after the first wavelength terminal sends the ONU enable message to the second wavelength terminal, the method further includes: the first wavelength The terminal terminates the uplink bandwidth grant of the ONU that generates the interference signal;
  • the sending, by the first wavelength terminal, the ONU enable message to the second wavelength terminal includes: when the first wavelength terminal detects that the interference signal disappears, the first wavelength terminal sends an ONU enable message to the second wavelength terminal.
  • the method further includes: receiving the burst sent by the second wavelength terminal The message is lost to the LOBi alarm notification message, wherein the LOBi alarm notification message is used to indicate that the second wavelength terminal detects that the ONU attached to the second wavelength terminal generates a LOBi alarm.
  • the interference detection result message is used by The first ONU is isolated by triggering the second wavelength terminal.
  • a fifth aspect of the present invention provides a control method for a rogue optical network unit ONU, including:
  • the first wavelength terminal that detects the interference signal broadcasts an ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal;
  • the first wavelength terminal receives an interference detection request message from a second wavelength terminal, where the interference detection request message is used to indicate that the first wavelength terminal performs interference signal detection, where the interference detection request message is received by the second wavelength terminal. Transmitting an uplink bandwidth grant of the first ONU that generates the interference signal;
  • the first wavelength terminal detects the interference signal triggered by the interference detection request message, the first wavelength terminal sends an interference detection result message indicating that the interference signal is detected to the second wavelength terminal, where the interference The detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, and indicates that the wavelength terminal that detects the interference signal (such as the LOBI alarm) terminates to generate the interference signal.
  • the upstream bandwidth grant of the ONU (such as the LOBI alarm)
  • the first wavelength terminal sends an indication to the second wavelength terminal that the interference signal is detected.
  • An interference detection result message where the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU, and the interference detection request message is enabled by the second wavelength terminal to generate an interference signal.
  • whether the first ONU is a rogue ONU can be inferred according to whether the second wavelength terminal enables the interference signal of the uplink bandwidth authorization of the first ONU that generates the interference signal.
  • the mechanism can effectively judge whether the first ONU is a rogue ONU, which is beneficial to the more effective one. Do a rogue ONU.
  • the method before the first wavelength terminal receives the interference detection request message from the second wavelength terminal, or Before the triggering of the message is performed to detect the interference signal, the method further includes: the first wavelength terminal terminating the uplink bandwidth grant of the ONU that generates the interference signal.
  • the interference detection result message is used to trigger the first wavelength terminal to be the first An ONU is isolated.
  • a sixth aspect of the present invention provides a control method for a rogue optical network unit ONU, including:
  • the first wavelength terminal detecting the interference signal broadcasts the ONU diagnosis request
  • the first wavelength terminal receives an interference detection request message from a second wavelength terminal, where the interference detection request message is used to indicate that the first wavelength terminal performs interference signal detection, where the interference detection request message is received by the second wavelength terminal. Transmitting after the uplink bandwidth grant of the first ONU that generates the interference signal is terminated;
  • the first wavelength terminal detects that the interference signal disappears under the trigger of the interference detection request message, the first wavelength terminal sends an interference detection result message indicating that the detection of the interference signal disappears to the second wavelength terminal.
  • the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the method before the first wavelength terminal receives the interference detection request message from the second wavelength terminal, or the first wavelength terminal is in the interference detection Before the triggering of the request message to perform the interference signal detection, the method further includes: the first wavelength terminal terminating the uplink bandwidth grant of the ONU that generates the interference signal.
  • the interference detection result message is used to trigger the second wavelength terminal to be the first An ONU is isolated.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, and if the interference is detected by the interference detection request message from the second wavelength terminal, the interference is detected.
  • the ONU because the interference detection request message is sent by the second wavelength terminal to terminate the uplink bandwidth of the first ONU that generates the interference signal Before or after the right is transmitted, whether the first ONU is a rogue ONU can be inferred according to whether the second wavelength terminal terminates the change of the interference signal before and after the uplink bandwidth authorization of the first ONU that generated the interference signal, and the mechanism is effective. It is judged whether the first ONU is a rogue ONU, and thus it is advantageous to identify the rogue ONU more effectively.
  • a seventh aspect of the present invention provides a wavelength terminal, including:
  • a sending unit configured to broadcast a rogue ONU diagnostic request after detecting the interference signal, where the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth grant of the ONU that generates the interference signal;
  • control unit configured to terminate an uplink bandwidth grant of the remaining ONUs other than the first ONU that generate the interference signal
  • the sending unit is further configured to broadcast a first interference detection request message, where the first interference detection request message is used to indicate that the wavelength terminal performs interference signal detection;
  • a determining unit configured to: if a first interference detection result message for responding to the first interference detection request message from the second wavelength terminal is received, and the first interference detection result message indicates the second wavelength terminal An interference signal is detected to be present, and the first ONU is determined to be a rogue ONU.
  • a ninth aspect of the present invention provides a passive optical network, including:
  • the wavelength terminal is any wavelength terminal provided by the embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a TWDM-PON according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a rogue ONU management method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of several message formats according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart diagram of another rogue ONU management method according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart diagram of another rogue ONU management method according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic flowchart diagram of another rogue ONU management method according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic flowchart of another rogue ONU management method according to an embodiment of the present disclosure.
  • FIG. 13 to FIG. 15 are schematic diagrams of several wavelength terminals according to an embodiment of the present invention.
  • the embodiment of the invention provides a rogue ONU management method and related equipment and a PON, so as to be able to effectively identify the rogue ONU.
  • each network device on the central office side may include one or more CTs, and each CT manages one wavelength pair, including one upstream wavelength channel and one downlink wavelength channel, and is connected.
  • the ONUs of any one of the CTs share the pair of upstream and downstream wavelength channels by time sharing.
  • the ONUs corresponding to different CTs use WDM to transmit data.
  • the CT101 of the OLT manages the upstream wavelength channel of ⁇ 1 and the downstream wavelength channel of ⁇ 2, and the ONU1-ONUn belonging to the CT1 management uses this wavelength channel pair ( ⁇ 1, ⁇ 2) to perform data communication with CT1.
  • Each CT is multiplexed into a trunk fiber by a wavelength division multiplexer WDM, and then transmitted through a splitter fiber to each ONU to which each OLT belongs.
  • the data sent by each CT is sent to each ONU through the broadcast mode.
  • the subordinates belonging to the ONU receive the number of the CT-issued messages through the wavelength filter of the ONU. According to this, the data sent to other CTs is filtered.
  • the uplink direction of the ONU to the OLT and the ONUs belonging to the respective CTs share the uplink wavelength channel and the CTs of the respective affiliates through the time division mode for data communication.
  • the ONUs connected under the CTs are different in the DC mode of the subordinates, and the wavelength division method is adopted.
  • the CT is a type of terminal used by the OLT to manage the wavelength of the ONU, and may be a logical management device or a physical management device.
  • Each CT may be located on a board or a chassis of the OLT. It can also be located in a board or a chassis of a different OLT. Its main function is to manage the wavelength channel function between the OLT and the ONUs under the OLT. Multiple CTs can belong to one OLT or belong to different OLTs.
  • the OLT the following embodiment mainly takes an OLT with multiple CT terminals as an example, but is not limited to the application scenario.
  • the rogue ONU defined in the ITU-T G.989.3 standard mainly includes the following three types.
  • the first type of rogue ONUs cross-slot ONUs, that is, such rogue ONUs do not emit light on their own time slots, such rogue ONUs will generate LOBi alarm.
  • the second type of rogue ONU is a cross-wavelength ONU, that is, such rogue ONUs do not send and receive data on their own wavelength channels (ie, do not emit light at a specified wavelength), such rogue ONUs also generate LOBI alarms, such rogue ONUs can be called trans-wavelengths. Rogue ONU.
  • the third type of rogue ONU is not adjusted to the target wavelength channel when the OLT spontaneously adjusts the wavelength channel. This type of rogue ONU does not require an alarm, and the OLT is generally aware that the ONU cannot be normal due to the error of the OLT's adjusted wavelength channel. Send and receive data.
  • the solution of the embodiment of the present invention mainly discusses how to effectively identify the technical problem of the cross-wavelength rogue ONU (the second type of rogue ONU).
  • the rogue ONU specifically refers to a cross-wavelength flowing ONU.
  • the CT attached to the rogue ONU is referred to as a source CT (SourceCT), and the SourceCT is used to manage the wavelength channel of the OLT on the SourceOLT; the ONU affected by the rogue ONU
  • the attached CT is called Affected CT, and AffectedCT is used on the Affected OLT to manage the wavelength channel of the OLT.
  • Source OLT and Affected OLT are only convenient descriptions. Two OLTs selected from multiple OLTs and OLTs that are assumed to be affected by rogue ONUs are defined as Source OLTs.
  • Source OLT manages wavelengths under the OLT through its own SourceCT. Channel and other functions.
  • the Affected OLT is defined as an OLT affected by the rogue ONU, and the Affected OLT manages the functions of the wavelength channel under the OLT through its own Affected CT.
  • the rogue ONU will cause the SourceCT to detect the LOBi (Loss Burst for ONU i) alarm of its attached ONU i, that is, the CT is checked at the working wavelength. No signal is detected and an alarm message is generated.
  • LOBi Liss Burst for ONU i
  • AffectedCT may detect an interference signal in the presence of a rogue ONU.
  • the interference signal of the embodiment of the present invention may be, for example, a LOBi alarm, a LOPCi (Loss of PLOAM channel with ONU i) alarm or an OMCI signal loss of the ONU i, unless otherwise specified. (LOOCi, Loss of OMCI channel with ONU i) alarms, etc.
  • PLOAM Physical Layer Operation and Maintenance
  • the following discusses how to identify the technical implementation of rogue ONU in some scenarios.
  • FIG. 2 is a schematic flowchart diagram of a method for controlling a rogue ONU according to an embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 2 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal sends an ONU silence message to the second wavelength terminal.
  • the ONU silence message indicates that the second wavelength terminal terminates the uplink bandwidth grant of the first ONU that generated the interference signal.
  • the second wavelength terminal receives the ONU silence message from the first wavelength terminal, and the second wavelength terminal terminates the first ONU that generates an interference signal (eg, a LOBI alarm, etc.) under the indication of the ONU silence message.
  • an interference signal eg, a LOBI alarm, etc.
  • the first ONU may be one of the ONUs or any one of the at least one ONUs that are associated with the second wavelength terminal, and the ONU silence message may or may not carry the identifier of the first ONU.
  • the ONU silent message carries the identifier of the first ONU, it indicates that the ONU specifies which ONU the ONU needs to be silent, and the ONU silence message does not carry the identifier of the first ONU.
  • the first wavelength terminal does not specify which ONU the ONU needs to be silent.
  • the first wavelength terminal If the first wavelength terminal detects that the interference signal disappears, the first wavelength terminal sends an interference detection result message indicating that the detected interference signal disappears to the second wavelength terminal.
  • interference signal disappears means that the interference signal has undergone a change process from yes to no.
  • the interference detection result message may be used by the second wavelength terminal to determine that the first ONU is a rogue ONU. Specifically, since the interference detection result message indicates that the first wavelength terminal detects that the interference signal disappears, it may be stated that before the second wavelength terminal terminates the uplink bandwidth authorization of the first ONU that generates the interference signal, After the first wavelength terminal terminates the uplink bandwidth grant of the first ONU that generates the interference signal, the first wavelength terminal detects that the interference signal does not exist, that is, the first wavelength terminal detects the interference. The signal has changed from the beginning to the end.
  • the first wavelength terminal detects the change of the interference signal from the presence to the end, which is likely caused by the termination of the uplink bandwidth authorization of the first ONU that generates the interference signal by the second wavelength terminal. Then, it can be inferred that the first ONU is likely to be a rogue ONU.
  • the second wavelength terminal receives the interference detection result message.
  • the second wavelength terminal determines that the first ONU is a rogue ONU based on the interference detection result message.
  • the first wavelength terminal may isolate the first ONU.
  • the first wavelength terminal may isolate the first ONU by sending a Disable_SN PLOAM message to the first ONU.
  • the first wavelength terminal may also issue an alarm indicating that the first ONU is a rogue ONU, and the alarm may notify an administrator to perform a related operation.
  • the first wavelength terminal that detects the interference signal terminates the uplink bandwidth grant of the first ONU that generates the interference signal by instructing the second wavelength terminal, and generates interference according to the termination of the second wavelength terminal.
  • Whether the first ONU is a rogue ONU is inferred whether the first ONU is a rogue ONU before the uplink bandwidth of the first ONU of the signal is changed. This mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the comparison. It effectively identifies rogue ONUs.
  • the method may further include: the first wavelength terminal terminates the ONU that generates the interference signal. Upstream bandwidth authorization (ie, the first wavelength terminal terminates attached to itself) An upstream bandwidth grant is generated for some or all of the ONUs that are interfering with the signal).
  • the sending, by the first wavelength terminal, the ONU silence message to the second wavelength terminal may include: after the first wavelength terminal detects that the interference signal still exists (that is, after the first wavelength terminal terminates the uplink bandwidth authorization of the ONU that generates the interference signal, When it is detected that the interference signal has not disappeared, the first wavelength terminal transmits an ONU silence message to the second wavelength terminal.
  • the first wavelength terminal terminates the uplink bandwidth authorization of the ONU that generates the interference signal, which is beneficial to minimize the ONU pair that generates the interference signal attached to the second wavelength terminal.
  • the influence of the detection result is further beneficial to further improve the accuracy and efficiency of identifying the rogue ONU.
  • the method may further include: receiving the LOBi alarm sent by the second wavelength terminal. a notification message, wherein the LOBi alarm notification message is used to indicate that the second wavelength terminal detects that an ONU attached to the second wavelength terminal generates a LOBi alarm, and the first wavelength terminal may be based on the LOBi alarm notification message It is known that there is a potential one or more rogue ONUs in the ONUs attached to the second wavelength terminal.
  • the method may further include: the first wavelength terminal broadcasts a rogue ONU diagnostic request,
  • the LOBi alert notification message is responsive to the rogue ONU diagnostic request.
  • the rogue ONU diagnostic request may trigger each wavelength terminal (including the second wavelength terminal) that the ONU generates the LOBi alarm to send a LOBi alarm notification message to the first wavelength terminal, thereby facilitating the first wavelength terminal to be based on the LOBI alarm notification.
  • the message learns that the ONUs under those wavelength terminals generate LOBi alarms, and the ONUs that generate LOBi alarms attached to the wavelength terminals are potential rogue ONUs.
  • FIG. 3-a is a schematic flowchart of a control method of a rogue ONU according to an embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 3-a can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal on its own uplink wavelength broadcasts a rogue ONU diagnosis request.
  • the first wavelength terminal may terminate the uplink bandwidth grant of the ONU that generates the interference signal.
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal receives a rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • each wavelength terminal to which the ONU generates the LOBi alarm may send a LOBi alarm notification message to the first wavelength terminal.
  • each CT sharing the same ODN is a partner wavelength terminal (PeerCT).
  • the LOBi alert notification message is responsive to the rogue ONU diagnostic request.
  • the rogue ONU diagnosis request may trigger each wavelength terminal that has generated the LOBi alarm by the ONU to send a LOBi alarm notification message to the first wavelength terminal, thereby facilitating the first wavelength terminal to learn that the ONUs under the wavelength terminals are generated based on the LOBI alarm notification message.
  • the LOBi alarm, and the ONUs that generate the LOBI alarms attached to the corresponding wavelength terminals are potential rogue ONUs.
  • a possible message structure of the LOBi alarm notification message may be, for example, as shown in FIG. 3-c.
  • the LOBi alarm notification message carries the identifier and/or the total number of ONUs that have generated the LOBi alarm attached to the corresponding wavelength terminal. Wait.
  • the first wavelength terminal sends an ONU silence message to the ith wavelength terminal of the p wavelength terminals.
  • the ith wavelength terminal receives an ONU silence message from the first wavelength terminal, where the ONU silence message indicates that the wavelength terminal terminates the uplink bandwidth authorization of the ONU that generated the LOBi alarm. It is assumed that the number of ONUs that have generated the LOBI alarm attached to the i-th wavelength terminal is q.
  • the ith wavelength terminal terminates the uplink bandwidth grant of the jth ONU that generates the LOBi alarm, and starts the timer T1 (the duration of the timer T1 can be set according to actual needs).
  • the first wavelength terminal detects that the interference signal disappears, the first wavelength terminal ends to the ith wavelength
  • the terminal sends an interference detection result message, where the interference detection result message is used to indicate that the detected interference signal disappears.
  • a possible message structure of the interference detection result message may be exemplified in FIG. 3-e or FIG. 3-f.
  • the ith wavelength terminal receives the interference detection result message from the first wavelength terminal before the timer T1 arrives, and the interference detection result message is used to indicate that the first wavelength terminal detects that the interference signal disappears, and step S312 is performed. .
  • step S308 is performed.
  • the i-th wavelength terminal determines whether j is greater than q.
  • step S310 is performed.
  • the first wavelength terminal determines whether i is greater than p.
  • step S313 is performed.
  • the i-th wavelength terminal determines that the j-th ONU is a rogue ONU, and the i-th wavelength terminal sends a Disable_SN PLOAM message to the j-th ONU to isolate the j-th ONU.
  • the first wavelength terminal broadcasts a rogue ONU diagnosis end message.
  • the first wavelength terminal that detects the interference signal indicates the uplink bandwidth authorization of an ONU that generates an interference signal (for example, a LOBI alarm) by indicating that the terminal of a certain wavelength terminates, and according to the certain wavelength.
  • the terminal terminates the change of the interference signal before and after the uplink bandwidth authorization of an ONU of the interference signal to estimate whether the ONU is a rogue ONU.
  • This mechanism can effectively judge whether the ONU is a rogue ONU, thereby facilitating comparison. effective The rogue ONU is identified.
  • FIG. 4 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 4 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal broadcasts a rogue ONU diagnosis request.
  • Each partner wavelength terminal (including the second wavelength terminal) of the first wavelength terminal receives the rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • the second wavelength terminal transmits an interference detection request message to the first wavelength terminal before or after terminating the uplink bandwidth grant of the first ONU that generates the interference signal (eg, the LOBI alarm).
  • the interference detection request message is used to instruct the first wavelength terminal to perform interference signal detection.
  • the second wavelength terminal may generate any one of the wavelength terminals of the LOBi alarm for the associated ONU in each partner wavelength terminal of the first wavelength terminal.
  • a possible message structure of the scrambling detection request message may be exemplified in FIG. 3-h.
  • the first wavelength terminal receives an interference detection request message from the second wavelength terminal.
  • the interference detection request message is sent by the second wavelength terminal before or after the upstream bandwidth grant of the first ONU that terminates the interference signal is transmitted.
  • the interference detection request message is used to instruct the first wavelength terminal to perform interference signal detection.
  • the first wavelength terminal detects that the interference signal disappears under the trigger of the interference detection request message, the first wavelength terminal sends, to the second wavelength terminal, an interference detection result message indicating that the interference signal is detected to disappear. And the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the second wavelength terminal determines that the first ONU is a rogue ONU if receiving an interference detection result message indicating that the interference signal disappears from the first wavelength terminal.
  • the method before the first wavelength terminal receives the interference detection request message from the second wavelength terminal, or the first wavelength terminal is in the interference detection request message Before the triggering of the interference signal detection, the method further includes: the first wavelength terminal terminates an uplink bandwidth grant of the ONU that generates the interference signal.
  • the uplink bandwidth grant of the ONU that generates the interference signal in advance by the first wavelength terminal will be beneficial to reduce the interference of the first wavelength terminal to identify the rogue ONU.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • the second wavelength terminal may send a Disable_SN PLOAM message to the first ONU to isolate the first ONU.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by the broadcast rogue ONU diagnosis request, and is detected if triggered by the interference detection request message from the second wavelength terminal.
  • the interference signal disappears, and the first wavelength terminal sends an interference detection result message indicating that the detection of the interference signal disappears to the second wavelength terminal, where the interference detection result message is used by the second wavelength terminal to determine that the first ONU is.
  • the rogue ONU because the interference detection request message is sent by the second wavelength terminal before or after the uplink bandwidth grant of the first ONU that terminates the interference signal is generated, may terminate the uplink of the first ONU that generated the interference signal according to the second wavelength terminal.
  • Whether the first ONU is a rogue ONU is determined by whether the interference signal disappears before or after the bandwidth authorization. This mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU. .
  • FIG. 5 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 5 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal (such as the LOBI alarm) broadcasts the rogue ONU diagnosis request.
  • the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detected the interference signal terminates the uplink bandwidth grant of the ONU that generated the interference signal.
  • the partner wavelength terminal (PeerCT) of the first wavelength terminal can receive the rogue ONU diagnosis request broadcast by the first wavelength terminal, and each wavelength terminal of the partner wavelength terminal detects the upstream bandwidth of the ONU that generates the interference signal. Authorization.
  • the first wavelength terminal terminates an uplink bandwidth grant of a remaining ONU other than the first ONU that generates an interference signal.
  • the first wavelength terminal broadcasts a first interference detection request message, where the first interference detection is performed.
  • the request message is used to instruct the wavelength terminal to perform interference signal detection.
  • the partner wavelength terminal (PeerCT) of the first wavelength terminal may receive the first interference detection request message broadcast by the first wavelength terminal, and each partner wavelength terminal performs interference signal detection under the instruction of the first interference detection request message.
  • the first wavelength terminal receives the first interference detection result message for responding to the first interference detection request message from the second wavelength terminal, and the first interference detection result message indicates the first
  • the two-wavelength terminal detects that the interference signal exists, and the first wavelength terminal may determine that the first ONU is a rogue ONU.
  • the first wavelength terminal that detects the interference signal initiates the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates to generate the interference signal.
  • the first wavelength terminal terminates generating an uplink bandwidth grant of the remaining ONUs other than the first ONU among the interference signal ONUs, if the indication from the second wavelength terminal is received.
  • the second wavelength terminal detects that the first interference detection result message of the interference signal is present, and then the first ONU is initially determined to be a rogue ONU, because the first wavelength terminal is terminated according to the termination of the first wavelength terminal by the other wavelength terminal.
  • This mechanism can effectively determine whether the first ONU is a rogue ONU. In turn, it is advantageous to identify the rogue ONU more effectively.
  • the first wavelength terminal determines that the first ONU is before the rogue ONU, and after receiving the second wavelength terminal, is configured to respond to the first interference.
  • the method further includes: the first wavelength terminal terminates an uplink bandwidth grant of the first ONU, and sends a second interference detection request message to the second wavelength terminal.
  • the determining, by the first wavelength terminal, that the first ONU is a rogue ONU includes: receiving, at the first wavelength terminal, a second response from the second wavelength terminal for responding to the second interference detection request message When the second interference detection result message indicates that the second wavelength terminal detects that the interference signal disappears, the first wavelength terminal determines that the first ONU is a rogue ONU. In addition, if the second interference detection result message indicates If the second wavelength terminal detects the presence of an interference signal, then the first ONU may not be a rogue ONU.
  • the first wavelength terminal terminates the uplink bandwidth grant of the first ONU, and broadcasts or unicasts the interference detection request message again, and uses the second interference detection result message to further confirm whether the first ONU is a rogue ONU.
  • this double confirmation mechanism it is beneficial to improve the recognition accuracy of the rogue ONU.
  • the method further includes: the first wavelength terminal is to be the first The ONU is isolated.
  • the first wavelength terminal terminates an uplink bandwidth grant of the remaining ONU except the first ONU that generates the interference signal, where the first wavelength terminal terminates to generate a burst The upstream bandwidth grant of the remaining ONUs other than the first ONU that sent the message loss (LOBi) alarm.
  • LOBi message loss
  • FIG. 6 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 6 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal (such as the LOBI alarm) broadcasts an ONU diagnosis request, where the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal.
  • the partner wavelength terminal (PeerCT) of the first wavelength terminal receives the rogue ONU diagnosis request broadcast by the first wavelength terminal, and each wavelength terminal that detects the interference signal in each partner wavelength terminal terminates the uplink bandwidth authorization of the ONU that generates the interference signal. .
  • the first wavelength terminal terminates an uplink bandwidth authorization of an ONU that generates a LOBi alarm.
  • the first wavelength terminal terminates the uplink bandwidth grant of the p ONUs that generate the LOBi alarm.
  • the first wavelength terminal enables an uplink bandwidth grant of an i-th ONU among the p ONUs.
  • the first wavelength terminal broadcasts a first interference detection request message, where the first interference detection request message is used to instruct the wavelength terminal to perform interference signal detection.
  • the partner wavelength terminals of the first wavelength terminal receive the first interference detection request message broadcast by the first wavelength terminal. Each partner wavelength terminal performs interference signal detection under the direction of the first interference detection request message.
  • Each partner wavelength terminal transmits a first interference detection result message for responding to the first interference detection request message to the first wavelength terminal.
  • the first wavelength terminal receives a first interference detection result message from the partner wavelength terminal for responding to the first interference detection request message.
  • step S609 is performed.
  • step S610 is performed.
  • the first wavelength terminal determines that the i-th ONU is a rogue ONU.
  • the first wavelength terminal sends a Disable_SN PLOAM message to the i-th ONU to isolate the i-th ONU.
  • the first wavelength terminal determines whether i is greater than p.
  • step S605 is performed. If yes, step S612 is performed.
  • the first wavelength terminal broadcasts a rogue ONU diagnosis end message.
  • the first wavelength terminal that detects the interference signal initiates the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates to generate the interference signal.
  • the first wavelength terminal terminates generating an uplink bandwidth grant of the remaining ONUs other than the first ONU among the interference signal ONUs, if the indication from the second wavelength terminal is received.
  • the second wavelength terminal detects that the first interference detection result message of the interference signal is present, and then the first ONU is initially determined to be a rogue ONU, because the first wavelength terminal is terminated according to the termination of the first wavelength terminal by the other wavelength terminal.
  • the interference signals before and after the upstream bandwidth grant of the remaining ONUs other than the first ONU are Whether or not the first ONU is a rogue ONU, the mechanism can effectively determine whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU.
  • FIG. 7 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 7 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • a first wavelength terminal that detects an interference signal (such as a LOBI alarm) broadcasts an ONU diagnosis request, where the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates an uplink bandwidth authorization of the ONU that generates the interference signal.
  • an interference signal such as a LOBI alarm
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal receives a rogue ONU diagnosis request broadcast by the first wavelength terminal, and each wavelength terminal that detects the interference signal in each partner wavelength terminal terminates an uplink bandwidth authorization of the ONU that generates the interference signal. .
  • the first wavelength terminal terminates an uplink bandwidth authorization of an ONU that generates a LOBI alarm.
  • the first wavelength terminal terminates the uplink bandwidth grant of the p ONUs that generate the LOBi alarm.
  • the first wavelength terminal enables an uplink bandwidth grant of an i-th ONU among the p ONUs.
  • the first wavelength terminal broadcasts a first interference detection request message, where the first interference detection request message is used to indicate that the wavelength terminal performs interference signal detection.
  • the partner wavelength terminals of the first wavelength terminal receive the first interference detection request message broadcast by the first wavelength terminal. Each partner wavelength terminal performs interference signal detection under the direction of the first interference detection request message.
  • Each partner wavelength terminal transmits a first interference detection result message for responding to the first interference detection request message to the first wavelength terminal.
  • the first wavelength terminal receives a first interference detection result message from the partner wavelength terminal for responding to the first interference detection request message.
  • step S709 is performed.
  • step S713 is performed.
  • the first wavelength terminal terminates an uplink bandwidth grant of the i-th ONU, and broadcasts a second interference detection request message.
  • the second interference detection request message is used to instruct the wavelength terminal to perform interference signal detection.
  • the partner wavelength terminals of the first wavelength terminal receive the second interference detection request message broadcast by the first wavelength terminal. Each partner wavelength terminal performs interference signal detection under the direction of the second interference detection request message.
  • Each partner wavelength terminal transmits a second interference detection result message for responding to the second interference detection request message to the first wavelength terminal.
  • the first wavelength terminal receives a second interference detection result message from the partner wavelength terminal for responding to the second interference detection request message.
  • step S713 is performed;
  • step S712 is performed.
  • the first wavelength terminal may also send the second interference detection request message to the second wavelength terminal in step S710. In this case, other wavelength terminals may not perform interference detection again.
  • the first wavelength terminal determines that the i-th ONU is a rogue ONU.
  • the first wavelength terminal sends a Disable_SN PLOAM message to the i-th ONU to isolate the i-th ONU.
  • the first wavelength terminal determines whether i is greater than p.
  • step S705 is performed. If yes, step S715 is performed.
  • the first wavelength terminal broadcasts a rogue ONU diagnosis end message.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by the broadcast rogue ONU diagnosis request, and indicates the detection. Terminating the uplink bandwidth of the ONU that generates the interference signal to the wavelength terminal of the interference signal, the first wavelength terminal terminates generating the uplink bandwidth authorization of the remaining ONUs other than the first ONU among the interference signal ONUs, if received.
  • the first interference detection result message indicating that the second wavelength terminal detects the presence of the interference signal from the second wavelength terminal may determine that the first ONU is a rogue ONU, because the first wavelength terminal is based on other wavelength terminals.
  • the first wavelength terminal terminates the change of the interference signal before and after the uplink bandwidth grant of the remaining ONUs other than the first ONU of the interference signal, to infer whether the first ONU is a rogue ONU, and the mechanism can be effective. It is judged whether the first ONU is a rogue ONU, and thus it is advantageous to identify the rogue ONU more effectively.
  • the first wavelength terminal terminates the uplink bandwidth grant of the first ONU, and broadcasts the interference detection request message again, and further confirms whether the first ONU is a rogue ONU by using the second interference detection result message.
  • the double confirmation mechanism is beneficial to improve the recognition accuracy of the rogue ONU.
  • FIG. 8 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 8 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal broadcasts the current ONU diagnosis request, where the rogue ONU diagnosis request is used to indicate that the wavelength terminal that detects the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal.
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal may receive a rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • Each wavelength terminal in the partner wavelength terminal that detects the interference signal terminates the upstream bandwidth grant of the ONU that generated the interference signal.
  • the first wavelength terminal terminates generating an uplink bandwidth grant of the first ONU among the interference signals ONU.
  • the first wavelength detection terminal receives the first interference detection result message from the second wavelength terminal, and the first interference detection result message indicates that the second wavelength terminal detects that the interference signal disappears, the first The wavelength terminal determines that the first ONU is a rogue ONU.
  • the second wavelength terminal is one of the partner wavelength terminals of the first wavelength terminal.
  • the first wavelength terminal that detects the interference signal (such as the LOBI alarm) initiates the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates to generate the interference signal.
  • the first ONU may be initially determined to be a rogue ONU, because the first wavelength terminal is based on the upstream bandwidth authorization of the first ONU that terminates the interference signal generated by the other wavelength terminal at the first wavelength terminal. Whether the interference signal disappears or not, to infer whether the first ONU is a rogue ONU, this mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU.
  • the method further includes: the first wavelength terminal broadcasting an ONU silence message, The first interference detection result message is sent by the second wavelength terminal after receiving the ONU silence message.
  • the first interference detection result message is used to respond to the ONU silence message, where the interference detection result indicates that the second wavelength terminal is based on After the rogue ONU diagnostic request terminates the uplink bandwidth grant of the ONU that generated the interference signal, the detected interference signal disappears;
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message disappear;
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message Exist, after receiving the ONU silence message The interference signal was detected to disappear.
  • the method further includes: the first wavelength terminal is to be the first The ONU is isolated.
  • FIG. 9 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 9 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal (for example, the LOBI alarm) broadcasts a rogue ONU diagnosis request.
  • the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detected the interference signal terminates the uplink bandwidth grant of the ONU that generated the interference signal.
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal can receive a rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • Each wavelength terminal in the partner wavelength terminal that detects the interference signal terminates the upstream bandwidth grant of the ONU that generated the interference signal.
  • the first wavelength terminal broadcasts an ONU silence message.
  • the ONU silence message indicates that the first wavelength terminal will terminate the uplink bandwidth grant of an ONU among the ONUs that generate an interference signal (eg, a LOBI alarm).
  • the first wavelength terminal terminates generating an uplink bandwidth grant of an i-th ONU among the interference signal ONUs.
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal may receive an ONU silence message broadcast by the first wavelength terminal.
  • Each partner wavelength terminal may detect the interference signal triggered by the ONU silent message, and may send an interference detection result message indicating the interference detection result to the first wavelength terminal.
  • each partner wavelength terminal may start a timer after receiving the ONU silence message, detect the interference signal within the timer range, and send the interference indicating the interference detection result to the first wavelength terminal when the timer arrives. Test result message.
  • the first wavelength terminal receives a first interference detection result message from each partner wavelength terminal.
  • step S908 is performed.
  • step S909 is performed.
  • the first wavelength terminal determines that the i-th ONU is a rogue ONU.
  • the first wavelength terminal sends a Disable_SN PLOAM message to the i-th ONU to isolate the i-th ONU.
  • the first wavelength terminal determines whether i is greater than p.
  • step S904 is performed. If yes, step S911 is performed.
  • the first wavelength terminal broadcasts a rogue ONU diagnosis end message.
  • the first wavelength terminal that detects the interference signal (such as the LOBI alarm) initiates the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, indicating that the wavelength terminal detecting the interference signal terminates to generate the interference signal.
  • the first ONU may be initially determined to be a rogue ONU, because the first wavelength terminal is based on the upstream bandwidth authorization of the first ONU that terminates the interference signal generated by the other wavelength terminal at the first wavelength terminal. Whether the interference signal disappears or not, to infer whether the first ONU is a rogue ONU, this mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating the more effective identification of the rogue ONU.
  • FIG. 10 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 10 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal broadcasts a rogue ONU diagnosis request.
  • the rogue ONU diagnostic request is used to indicate that the wavelength termination of the detected interference signal (eg, LOBi alarm) is terminated
  • Upstream bandwidth grant for ONUs that generate interfering signals such as LOBI alarms.
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal can receive a rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • Each wavelength terminal in each partner wavelength terminal that detects an interference signal (eg, a LOBI alarm) terminates the upstream bandwidth grant of the ONU that generated the interference signal.
  • the first wavelength terminal sends an ONU enable message to the second wavelength terminal.
  • the ONU enable message indicates that the second wavelength terminal enables the uplink bandwidth grant of the first ONU that generates the interference signal.
  • the second wavelength terminal is one of the partner wavelength terminals of the first wavelength terminal.
  • the second wavelength terminal receives an ONU enable message from the first wavelength terminal.
  • the second wavelength terminal enables an uplink bandwidth grant of the first ONU that generates the interference signal under the indication of the ONU enable message.
  • the first wavelength terminal detects that an interference signal exists, the first wavelength terminal sends, to the second wavelength terminal, an interference detection result message indicating that the interference signal is detected, where the interference detection result message is The second wavelength terminal is configured to determine that the first ONU is a rogue ONU.
  • the second wavelength terminal receives the interference detection result message.
  • the second wavelength terminal determines that the first ONU is a rogue ONU based on the interference detection result message.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, and the rogue ONU diagnosis request is used to indicate that the interference signal is detected (for example, the LOBI alarm)
  • the wavelength terminal terminates the upstream bandwidth grant of the ONU that generates the interference signal (eg, the LOBi alarm), and the first wavelength terminal instructs the second wavelength terminal to enable the generation of the interference signal by transmitting an ONU enable message to the second wavelength terminal.
  • the first wavelength terminal After the uplink bandwidth authorization of the first ONU, the first wavelength terminal performs interference signal detection, and the first wavelength terminal sends an indication to the second wavelength terminal that the presence of the interference signal is detected, because the first wavelength terminal detects the presence of the interference signal.
  • Interference detection result message the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU, and it can be seen that the mechanism can effectively determine whether the first ONU is a rogue ONU, and further It is more effective in identifying rogue ONUs.
  • the first wavelength terminal is to the second wave Before the long terminal sends the ONU enable message, the method further includes: the first wavelength terminal terminating the uplink bandwidth grant of the ONU that generates the interference signal.
  • the sending, by the first wavelength terminal, the ONU enable message to the second wavelength terminal includes: when the first wavelength terminal detects that the interference signal disappears, the first wavelength terminal sends an ONU enable message to the second wavelength terminal.
  • the first wavelength terminal before the first wavelength terminal sends the ONU enable message to the second wavelength terminal, the first wavelength terminal terminates the uplink bandwidth grant of the ONU that generates the interference signal, which is beneficial to reduce the interference of the first wavelength terminal to identify the rogue ONU. .
  • the method further includes: receiving a burst message loss LOBi alarm notification message sent by the second wavelength terminal, where the LOBi alarm notification message is used to indicate that the second wavelength terminal detects an ONU generated by the second wavelength terminal The LOBi alarm.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • the second wavelength terminal may send a Disable_SN PLOAM message to the first ONU to isolate the first ONU.
  • FIG. 11 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 11 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal on its own uplink wavelength broadcasts a rogue ONU diagnostic request.
  • the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detects the interference signal (eg, the LOBi alarm) terminates the uplink bandwidth grant of the ONU that generates the interference signal (eg, the LOBi alarm).
  • Each partner wavelength terminal (PeerCT) of the first wavelength terminal may receive a rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • each wavelength terminal that the ONU generates the LOBi alarm may send a LOBi alarm notification message to the first wavelength terminal, and terminate the uplink bandwidth authorization of the ONU that generates the interference signal (such as the LOBI alarm).
  • the LOBi alert notification message is responsive to the rogue ONU diagnostic request.
  • the ONU diagnosis request can trigger the wavelength terminals of the ONU to generate the LOBi alarm to send the LOBi alarm notification message to the first wavelength terminal, so that the first wavelength terminal can learn that the ONUs under the wavelength terminals generate the LOBi alarm based on the LOBI alarm notification message.
  • the ONUs that generate the LOBI alarms attached to the corresponding wavelength terminals are potential rogue ONUs.
  • S1103 The first wavelength terminal terminates an uplink bandwidth grant of an ONU that generates an interference signal.
  • the first wavelength terminal sends an ONU enable message to the i-th wavelength terminal of the p wavelength terminals.
  • the ONU enable message indicates that the second wavelength terminal enables the uplink bandwidth grant of the first ONU that generates the interference signal.
  • the second wavelength terminal is one of the partner wavelength terminals of the first wavelength terminal.
  • the ith wavelength terminal receives an ONU enable message from the first wavelength terminal.
  • the ONU enable message indicates that the wavelength terminal enables the uplink bandwidth authorization of the ONU that generated the LOBi alarm.
  • the number of ONUs that have generated the LOBI alarm attached to the i-th wavelength terminal is q.
  • the ith wavelength terminal enables the uplink bandwidth grant of the jth ONU that generates the LOBi alarm and starts the timer T1 (the duration of the timer T1 can be set according to actual needs).
  • the first wavelength terminal If the first wavelength terminal detects that the interference signal exists, the first wavelength terminal sends an interference detection result message to the ith wavelength terminal, where the interference detection result message is used to indicate that the interference signal is detected to be present.
  • a possible message structure of the interference detection result message may be exemplified in FIG. 3-e or FIG. 3-f.
  • the ith wavelength terminal receives the interference detection result message from the first wavelength terminal before the timer T1 arrives, and the interference detection result message is used to indicate that the first wavelength terminal detects the presence of the interference signal, and step S1113 is performed. .
  • step S1109 is performed.
  • the i-th wavelength terminal determines whether j is greater than q.
  • step S1111 is performed.
  • S1112 The first wavelength terminal determines whether i is greater than p.
  • step S1114 is performed.
  • the i-th wavelength terminal determines that the j-th ONU is a rogue ONU, and the i-th wavelength terminal sends a Disable_SN PLOAM message to the j-th ONU to isolate the j-th ONU.
  • S1114 The first wavelength terminal broadcasts a rogue ONU diagnosis end message.
  • the first wavelength terminal that detects the interference signal after the wavelength terminal that detects the detection of the interference signal terminates the uplink bandwidth authorization of the ONU that generates the interference signal (for example, the LOBI alarm).
  • An ONU of an ONU that is enabled to generate an interference signal (such as a LOBI alarm) by indicating a certain wavelength terminal, and enabling an ONU that generates an interference signal (such as a LOBI alarm) according to the certain wavelength terminal.
  • this mechanism can effectively judge whether an ONU is a rogue ONU, thereby facilitating more effective identification. Rogue ONU.
  • the method before the first wavelength terminal sends an ONU enable message to the second wavelength terminal, the method further includes: the first wavelength terminal terminates generating an interference signal. Upstream bandwidth authorization for the ONU.
  • the sending, by the first wavelength terminal, the ONU enable message to the second wavelength terminal includes: The first wavelength terminal transmits an ONU enable message to the second wavelength terminal when detecting that the interference signal disappears.
  • the first wavelength terminal before the first wavelength terminal sends the ONU enable message to the second wavelength terminal, the first wavelength terminal terminates the uplink bandwidth grant of the ONU that generates the interference signal, which is beneficial to reduce the interference of the first wavelength terminal to identify the rogue ONU. .
  • the method further includes: receiving a burst message loss LOBi alarm notification message sent by the second wavelength terminal, where the LOBi alarm notification message is used to indicate that the second wavelength terminal detects an ONU generated by the second wavelength terminal The LOBi alarm.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • the second wavelength terminal may send a Disable_SN PLOAM message to the first ONU to isolate the first ONU.
  • FIG. 12 is a schematic flowchart diagram of a method for controlling a rogue ONU according to another embodiment of the present invention.
  • the control method of the rogue ONU corresponding to FIG. 12 can be implemented in the TWDM-PON of the architecture shown in FIG. 1, and can of course be implemented in its deformation architecture.
  • the first wavelength terminal that detects the interference signal broadcasts a rogue ONU diagnosis request.
  • the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detected the interference signal (such as the LOBI alarm) terminates the uplink bandwidth grant of the ONU that generates the interference signal (such as the LOBI alarm).
  • Each partner wavelength terminal (including the second wavelength terminal) of the first wavelength terminal receives the rogue ONU diagnosis request broadcast by the first wavelength terminal.
  • Each partner wavelength terminal of the first wavelength terminal (including the second wavelength terminal) terminates the upstream bandwidth grant of the ONU that generates the interference signal (eg, the LOBI alarm).
  • the device After the second wavelength terminal enables the uplink bandwidth grant of the first ONU that generates the interference signal (such as the LOBI alarm), the device sends an interference detection request message to the first wavelength terminal, where the interference detection request message is used to indicate the first wavelength terminal.
  • Interference signal detection After the second wavelength terminal enables the uplink bandwidth grant of the first ONU that generates the interference signal (such as the LOBI alarm), the device sends an interference detection request message to the first wavelength terminal, where the interference detection request message is used to indicate the first wavelength terminal.
  • the first wavelength terminal receives an interference detection request message from a second wavelength terminal, where the interference detection request message is used to indicate that the first wavelength terminal performs interference signal detection, where the interference detection request message is received by the second wavelength terminal. Enable the upstream bandwidth of the first ONU that generates the interference signal Send after the right.
  • the first wavelength terminal detects an interference signal triggered by the interference detection request message
  • the first wavelength terminal sends an interference detection result message indicating that the interference signal is detected to the second wavelength terminal.
  • the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the second wavelength terminal determines that the first ONU is a rogue ONU if receiving an interference detection result message indicating that an interference signal is detected from the first wavelength terminal.
  • the interference signal is detected before the first wavelength terminal receives the interference detection request message from the second wavelength terminal, or before the triggering of the interference detection request message is performed.
  • the method further includes: the first wavelength terminal terminating an uplink bandwidth grant of the ONU that generates the interference signal.
  • the interference detection result message is used to trigger the first wavelength terminal to isolate the first ONU.
  • the first wavelength terminal that detects the interference signal starts the rogue ONU diagnosis process by broadcasting the ONU diagnosis request, and indicates that the wavelength terminal that detects the interference signal (such as the LOBI alarm) terminates to generate the interference signal.
  • the upstream bandwidth grant of the ONU (such as the LOBI alarm)
  • the first wavelength terminal sends an indication to the second wavelength terminal that the interference signal is detected.
  • An interference detection result message where the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU, and the interference detection request message is enabled by the second wavelength terminal to generate an interference signal.
  • whether the first ONU is a rogue ONU can be inferred according to whether the second wavelength terminal enables the interference signal of the uplink bandwidth authorization of the first ONU that generates the interference signal.
  • the mechanism can effectively judge whether the first ONU is a rogue ONU, thereby facilitating more effective identification. Rogue ONU.
  • the names of the message names in the embodiments of the present invention are all exemplary.
  • the messages having these functions may also adopt other names, such as interference detection result messages, interference detection request messages, and rogue ONU diagnosis requests.
  • Messages, etc. may use other titles, but It uses that name, and the function of the message is still one or more of the corresponding functions including the examples of the embodiments of the present invention.
  • a wavelength terminal of FIG. 13 includes a transmitting unit 1310, a control unit 1320, and a determining unit 1330.
  • FIG. 13 may further include another wavelength terminal: a transmitting unit 1710, a control unit 1720, and a determining unit 1730.
  • the functions performed by the sending unit and the control unit are basically the same, but the functions performed by the determining unit are different.
  • two different wavelength terminals are described here by using FIG. Referring to the unit that performs the same function, for example, the sending unit 1310 and the sending unit 1710, the function of the sending unit 1310 is specifically described.
  • the sending unit 1710 the description of the sending unit 1310 is not described in detail.
  • the determining unit 1310 and The functions performed by the determining unit 1730 are different, and the differences in the respective functions are mainly described.
  • the function performed by the determining unit 1330 is: if the first interference detection result message for responding to the first interference detection request message from the second wavelength terminal is received, and the first interference detection result message indicates The second wavelength terminal detects that the interference signal exists, determines that the first ONU is a rogue ONU, and the determining unit 1730 functions to: if the first interference detection result message from the second wavelength terminal is received, and The first interference detection result message indicates that the second wavelength terminal detects that the interference signal disappears, and determines that the first ONU is a rogue ONU.
  • an embodiment of the present invention provides a wavelength terminal 1300, which may include:
  • the transmitting unit 1310 is configured to broadcast a rogue ONU diagnostic request after detecting the interference signal.
  • the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detected the interference signal terminates the uplink bandwidth grant of the ONU that generated the interference signal.
  • the control unit 1320 is configured to terminate an uplink bandwidth grant of the remaining ONUs other than the first ONU that generate the interference signal.
  • the sending unit 1310 is further configured to broadcast a first interference detection request message, where the first interference detection request message is used to instruct the wavelength terminal to perform interference signal detection.
  • the determining unit 1330 is configured to: if the first interference detection result message for responding to the first interference detection request message from the second wavelength terminal is received, and the first interference detection result message indicates the second wavelength
  • the terminal detects the presence of the interference signal, and determines that the first ONU is a rogue ONU.
  • control unit is further configured to terminate the uplink bandwidth authorization of the first ONU before the determining unit determines that the first ONU is a rogue ONU ;
  • the sending unit is further configured to send a second interference detection request message to the second wavelength terminal;
  • the determining unit is specifically configured to: receive, by the second wavelength terminal, a second interference detection result message for responding to the second interference detection request message, and the second interference detection result message indicates When the second wavelength terminal detects that the interference signal disappears, it is determined that the first ONU is a rogue ONU.
  • the wavelength terminal further includes: an isolation processing unit 1340, configured to isolate the first ONU after the determining unit determines that the first ONU is a rogue ONU.
  • control unit is specifically configured to terminate an uplink bandwidth grant of the remaining ONUs other than the first ONU that generate the LOBi alarm.
  • the embodiment of the invention further provides a wavelength terminal 1400, comprising:
  • a detecting unit 1410 configured to detect an interference signal
  • the sending unit 1420 is configured to send an ONU silence message to the second wavelength terminal after the detecting unit detects the interference signal, where the ONU silence message indicates that the second wavelength terminal terminates the first ONU that generates the interference signal. Upstream bandwidth authorization.
  • the sending unit 1420 is further configured to: after the detecting unit detects that the interference signal disappears, send an interference detection result message indicating that the detected interference signal disappears to the second wavelength terminal, where the interference detection result message is
  • the second wavelength terminal is configured to determine that the first ONU is a rogue ONU.
  • the wavelength terminal 1400 can also include:
  • the control unit 1430 is configured to terminate the uplink bandwidth authorization of the ONU that generates the interference signal before the sending unit sends the ONU silence message to the second wavelength terminal.
  • the sending unit is specifically configured to: after the control unit terminates the uplink bandwidth authorization of the ONU that generates the interference signal, the detecting unit detects that the interference signal still exists Next, an ONU silence message is sent to the second wavelength terminal.
  • the wavelength terminal further includes:
  • the receiving unit 1440 is configured to receive a burst message loss LOBi alarm notification message sent by the second wavelength terminal, before sending the ONU silence message to the second wavelength terminal, where the LOBi alarm notification message is used to indicate the
  • the two-wavelength terminal detects that the ONU attached to the second wavelength terminal generates a LOBI alarm.
  • the sending unit 1420 is further configured to: before receiving the LOBi alarm notification message sent by the second wavelength terminal, broadcast a rogue ONU diagnostic request, where the LOBi alarm notification message is used to respond to the rogue ONU diagnostic request.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention provides a wavelength terminal, including:
  • the functions performed by the memory 1530 in FIG. 15 have the same functions in the memory corresponding to the various wavelength terminals below, and are information such as some instruction codes for completing functions of the processor and the transceiver, or for storing. Some data on the bus.
  • the processor, memory, and transceiver communicate data over the bus.
  • the difference in the wavelength terminations protected by Figure 15 is primarily due to the different functions performed by the processor and the transceiver. For details, please refer to the specific description of the embodiments of the various wavelength terminals corresponding to FIG. 15 .
  • FIG. 13 For a specific structure diagram of the wavelength terminal, refer to FIG. 13 for a specific structural diagram of a wavelength terminal including a transmitting unit 1310, a control unit 1320, and a determining unit 1330.
  • the processor 1510 is configured to detect an interference signal.
  • the transceiver 1520 is the same as the function performed by the sending unit 1310, and is used for checking at the processor. Broadcasting an ONU diagnostic request after detecting the interference signal, the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detected the interference signal terminates the uplink bandwidth grant of the ONU that generates the interference signal; and is also used to broadcast the first interference detection request message, The first interference detection request message is used to instruct the wavelength terminal to perform interference signal detection.
  • the processor 1510 is the same as the function performed by the control unit 1320, and is further configured to terminate an uplink bandwidth grant of the remaining ONUs other than the first ONU that generate the interference signal; and if the transceiver receives the second wavelength terminal a first interference detection result message for responding to the first interference detection request message, and the first interference detection result message indicates that the second wavelength terminal detects the presence of an interference signal, and determines that the first ONU is Rogue ONU.
  • the processor is further configured to terminate an uplink bandwidth grant of the first ONU before determining that the first ONU is a rogue ONU;
  • the transceiver is further configured to send a second interference detection request message to the second wavelength terminal;
  • the processor is configured to receive, at the transceiver, a second interference detection from the second wavelength terminal for responding to the second interference detection request message And a result message, and the second interference detection result message indicates that the second ON terminal detects that the interference signal disappears, and determines that the first ONU is a rogue ONU.
  • the processor is further configured to isolate the first ONU after determining that the first ONU is a rogue ONU.
  • the processor is specifically configured to terminate generating a burst message in terminating an uplink bandwidth grant of a remaining ONU other than the first ONU that generates an interference signal.
  • an embodiment of the present invention further provides a wavelength terminal, including:
  • Processor 1610 memory 1630, and transceiver 1620.
  • the function of the memory is the same as that of the memory 1530 of FIG. 15, and details are not described herein again.
  • the wavelength terminal For a specific structure diagram of the wavelength terminal, reference may be made to the structural diagram of the wavelength termination including the detecting unit 1410, the transmitting unit 1420, the control unit 1430, and the receiving unit 1440 shown in FIG. 14 and the corresponding functions completed.
  • the processor 1610 is the same as the function performed by the detecting unit 1410, and is configured to perform interference signals. Detection.
  • the transceiver 1620 is the same as the function performed by the sending unit 1420, and is specifically configured to send an ONU silence message to the second wavelength terminal after the processor detects the interference signal, where the ONU silence message indicates the second
  • the wavelength termination terminates the upstream bandwidth grant of the first ONU that generated the interference signal.
  • the transceiver 1620 is further configured to: after the processor detects that the interference signal disappears, send an interference detection result message indicating that the detected interference signal disappears to the second wavelength terminal, where the interference detection result message is The second wavelength terminal is configured to determine that the first ONU is a rogue ONU.
  • the processor is further configured to: terminate an uplink bandwidth of an ONU that generates an interference signal before the transceiver sends an ONU silence message to the second wavelength terminal.
  • the transceiver is specifically configured to: after the processor terminates the uplink bandwidth authorization of the ONU that generates the interference signal, the processor detects that the interference signal still exists.
  • the ONU silent message is sent to the second wavelength terminal, and the function of the transceiver is the same as that performed by the control unit 1430.
  • the transceiver is further configured to perform a function corresponding to the receiving unit 1440, specifically, before receiving the ONU silence message to the second wavelength terminal, receiving the second The burst message sent by the wavelength terminal loses the LOBi alarm notification message, wherein the LOBi alarm notification message is used to indicate that the second wavelength terminal detects that the ONU attached to the second wavelength terminal generates a LOBi alarm.
  • the transceiver is further configured to: before receiving the LOBi alarm notification message sent by the second wavelength terminal, broadcast a rogue ONU diagnostic request, where the LOBi The alert notification message is used to respond to the rogue ONU diagnostic request.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides another wavelength terminal, including:
  • the sending unit 1710 is the same as the function performed by the sending unit 1310, and specifically participates in the function description of the sending unit 1310; the control unit 1720 and the control unit 1320 perform the same function, for details, see The functional description of the control unit 1310 will not be described here. .
  • the determining unit 1730 of the wavelength terminal is configured to: if the first interference detection result message from the second wavelength terminal is received, and the first interference detection result message indicates the second The wavelength terminal detects that the interference signal disappears, and determines that the first ONU is a rogue ONU.
  • the sending unit 1710 is further configured to broadcast an ONU silence message, where the first interference detection result message is sent by the second wavelength terminal after receiving the ONU silence message.
  • the first interference detection result message is used to respond to the ONU silence message.
  • the interference detection result indicates that the second wavelength terminal detects that the interference signal disappears after the uplink bandwidth authorization of the ONU that generated the interference signal is terminated based on the rogue ONU diagnosis request.
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message disappear;
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message There is an indication that the interference signal disappears after receiving the ONU silence message.
  • the wavelength terminal further includes: an isolation processing unit 1740, which performs the same function as that performed by the isolation processing unit 1340 of the wavelength termination 1300. For details, see isolation. The functions described by processing unit 1340.
  • an embodiment of the present invention further provides another wavelength terminal, wherein the wavelength terminal 1800
  • the wavelength terminal 1800 For a specific composition diagram, refer to another wavelength terminal shown in FIG. 17, including:
  • Processor 1810, memory 1830, and transceiver 1820 The memory 1830 is used to store information such as some instruction codes that complete the processor 1810 and the like, or to store some data on the bus.
  • the processor, memory, and transceiver communicate data over the bus.
  • the processor 1810 is the same as the function performed by another wavelength terminal provided in FIG. 13 and corresponds to each other. Specifically, the processing unit 1810 has the same functions as the control unit 1720 and the determining unit 1730 in FIG.
  • the function 1820 is the same as the function performed by the transmitting unit 1710 in FIG. details as follows:
  • the processor 1810 is configured to detect an interference signal.
  • the transceiver 1820 is specifically the same as the function performed by the wavelength terminal 13001710, and is configured to broadcast a rogue ONU diagnostic request after the processor 1810 detects the interference signal, the rogue ONU diagnostic request is used to indicate that the wavelength terminal detecting the interference signal is terminated.
  • the processor 1810 is specifically configured to perform the same function as the control unit 1720 of the wavelength terminal 1300 for terminating the uplink bandwidth grant of the first ONU among the interference signals ONU.
  • the processor 1810 is specifically configured to perform the same function as the determining unit 1730 of the wavelength terminal 1300, if the transceiver 1820 receives the first interference detection result message from the second wavelength terminal, and the first interference detection result message Instructing the second wavelength terminal to detect that the interference signal disappears, and determining that the first ONU is a rogue ONU.
  • the transceiver 1820 is further configured to broadcast an ONU silence message, where the first interference detection result message is sent by the second wavelength terminal after receiving the ONU silence message.
  • the first interference detection result message is used to respond to the ONU silence message.
  • the interference detection result indicates that the second wavelength terminal detects that the interference signal disappears after the uplink bandwidth authorization of the ONU that generated the interference signal is terminated based on the rogue ONU diagnosis request.
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message disappear;
  • the interference detection result indicates that the second wavelength terminal detects an interference signal after an uplink bandwidth grant of the ONU that generates the interference signal based on the rogue ONU diagnosis request, and before receiving the ONU silence message There is an indication that the interference signal disappears after receiving the ONU silence message.
  • the processor 1810 is further configured to: after determining that the first ONU is a rogue ONU, isolate the first ONU, the function described herein. It can also be seen that the functions performed by the isolation unit 1740 of FIG. 13 are the same.
  • an embodiment of the present invention further provides another wavelength terminal.
  • the wavelength terminal specifically includes:
  • the detecting unit 1910 is the same as the function performed by the detecting unit 1410 of the wavelength terminal 1400. For details, refer to the function description of the detecting unit 1410.
  • the sending unit 1920 is different from the function performed by the sending unit 1420, specifically for broadcasting a rogue ONU diagnostic request after detecting the interference signal, where the rogue ONU diagnostic request is used to indicate that the wavelength terminal detecting the interference signal terminates generating the interference signal. Upstream bandwidth authorization for the ONU.
  • the sending unit 1920 is further configured to send an ONU enable message to the second wavelength terminal.
  • the ONU enable message indicates that the second wavelength terminal enables an uplink bandwidth grant of the first ONU that generates the interference signal;
  • the sending unit 1920 is further configured to: if the detecting unit 1910 detects the presence of the interference signal after the sending unit 1920 sends the ONU enable message, send, to the second wavelength terminal, an interference detection result message indicating that the presence of the interference signal is detected, the interference The detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the wavelength terminal includes a control unit 1930.
  • the uplink bandwidth authorization of the ONU that generates the interference signal is terminated before or after the ONU enable message is sent to the second wavelength terminal.
  • the transmitting unit is configured to send an ONU enable message to the second wavelength terminal when the detecting unit 1910 detects that the interference signal disappears.
  • the wavelength terminal further includes a receiving unit 1940, configured to send, after the sending unit broadcasts the rogue ONU diagnostic request, the sending unit sends an ONU enable message to the second wavelength terminal. And receiving the burst message lost LOBi alarm notification message sent by the second wavelength terminal, where the LOBi alarm notification message is used to indicate that the second wavelength terminal detects that the ONU is attached to the second wavelength terminal. The LOBi alarm.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides another wavelength terminal, including:
  • the function performed by the memory 2030 is the same as that performed by the memory 1530 in FIG.
  • the specific processor 2010 corresponds to the detecting unit 1910 in FIG. 14, and the completed function is the same as that performed by the detecting unit 1910; the transceiver 2020 corresponds to the figure.
  • the transmitting unit 1920 in 14 and the completed function is the same as that digested by the transceiver 2020;
  • the processor 2010 is the same as the function performed by the detecting unit 1910, and is specifically configured to detect an interference signal.
  • the transceiver 2020 is the same as the function performed by the sending unit 1920, and is specifically configured to broadcast a rogue ONU diagnostic request after the processor 2010 detects the interference signal, where the rogue ONU diagnostic request is used to indicate that the wavelength terminal that detects the interference signal terminates.
  • the transceiver 2020 is further configured to send an ONU enable message to the second wavelength terminal.
  • the ONU enable message indicates that the second wavelength terminal enables an uplink bandwidth grant of the first ONU that generates the interference signal;
  • the transceiver 2020 is further configured to: if the processor 2010 detects that an interference signal exists after the transceiver 2020 sends the ONU enable message, send, to the second wavelength terminal, a dry indication that the presence of the interference signal is detected.
  • the interference detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • a part of the functions of the processor 2010 are the same as those performed by the control unit 1930, and are also used before or after the ONU enable message is sent to the second wavelength terminal.
  • the upstream bandwidth grant of the ONU that generated the interference signal is terminated.
  • the transceiver 2020 is configured to send an ONU enable message to the second wavelength terminal when the processor 2010 detects that the interference signal disappears.
  • the function performed by the transceiver 2020 is the same as that performed by the receiving unit 1940, and specifically, after the broadcast rogue ONU diagnosis request is performed, to the second wavelength terminal.
  • receiving a burst message loss LOBi alarm notification message sent by the second wavelength terminal where the LOBi alarm notification message is used to indicate that the second wavelength terminal detects that the second wavelength terminal is attached to the second
  • the ONU of the wavelength terminal generates a LOBI alarm.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides another wavelength terminal.
  • the wavelength terminal specifically includes:
  • the detecting unit 2110 is the same as the function performed by the detecting unit 1910, please refer to the function completed by the detecting unit 1410.
  • the sending unit 2120 is the same as the function performed by the sending unit 1420. For details, refer to the function performed by the sending unit 1420.
  • the receiving unit 2130 is different from the function performed by the receiving unit 1440, and is configured to receive an interference detection request message from the second wavelength terminal, where the interference detection request message is used to indicate that the wavelength terminal performs interference signal detection, where the interference detection request The message is sent by the second wavelength terminal after enabling the upstream bandwidth grant of the first ONU that generates the interference signal;
  • the sending unit 2120 is further configured to: if the detecting unit 2110 detects the interference signal triggered by the interference detection request message, send, to the second wavelength terminal, an interference detection result message indicating that the interference signal is detected, the interference detection result a message is used by the second wavelength terminal to determine the first
  • the ONU is a rogue ONU.
  • the wavelength terminal includes a control unit 2140, configured to receive an interference detection request message from a second wavelength terminal, or trigger on the interference detection request message.
  • the upstream bandwidth grant of the ONU that generated the interference signal is terminated before the interference signal detection is performed.
  • the interference detection result message is used to trigger the first wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides another wavelength terminal, including:
  • the processor 2210, the memory 2230, and the transceiver 2220, wherein the functions performed by the memory 2230 are the same as those performed by the memory 1530. For details, refer to the function description of the memory 1530.
  • wavelength terminal For a detailed structure of the wavelength terminal, refer to the corresponding description of the wavelength terminal including the processor 1510, the memory 1530, and the transceiver 1520.
  • the processor 2210 is the same as the processor 1510, and is specifically configured to detect an interference signal.
  • the transceiver 2220 is different from the function performed by the transceiver 1520, specifically for broadcasting a rogue ONU diagnostic request after the processor 2210 detects the interference signal, where the rogue ONU diagnostic request is used to indicate that the wavelength terminal detecting the interference signal terminates the interference.
  • the upstream bandwidth grant of the ONU of the signal is different from the function performed by the transceiver 1520, specifically for broadcasting a rogue ONU diagnostic request after the processor 2210 detects the interference signal, where the rogue ONU diagnostic request is used to indicate that the wavelength terminal detecting the interference signal terminates the interference.
  • the transceiver 2220 is further configured to receive an interference detection request message from the second wavelength terminal, where the interference detection request message is used to instruct the wavelength terminal 2200 to perform interference signal detection, where the interference detection request message is by the second wavelength terminal. Transmitting an uplink bandwidth grant of the first ONU that generates the interference signal;
  • the transceiver 2220 is further configured to: if the processor 2210 detects the interference signal triggered by the interference detection request message, send, to the second wavelength terminal, an interference detection result message indicating that the interference signal is detected, the interference detection result The message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the processor 2210 is further configured to: before the transceiver 2220 receives the interference detection request message from the second wavelength terminal, or in the interference detection request message. Terminate the ONU that generated the interference signal before triggering the interference signal detection Line bandwidth authorization.
  • the interference detection result message is used to trigger the first wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides a wavelength terminal, including:
  • the detecting unit 2310 is configured to detect the interference signal.
  • the transmitting unit 2320 is configured to broadcast the rogue ONU diagnostic request after detecting the interference signal.
  • the receiving unit 2330 is configured to receive an interference detection request message from the second wavelength terminal, where the interference detection request message is used to indicate that the wavelength terminal performs interference signal detection, where the interference detection request message is terminated by the second wavelength terminal. Sending after the upstream bandwidth of the first ONU of the interference signal is authorized;
  • the sending unit 2320 is further configured to: if the detecting unit 2310 detects that the interference signal disappears under the trigger of the interference detection request message, send, to the second wavelength terminal, an interference detection result message indicating that the detected interference signal disappears, the interference The detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the wavelength terminal includes a control unit 2340, where the receiving unit 2330 receives an interference detection request message from a second wavelength terminal, or in the interference detection.
  • the triggering of the request message terminates the upstream bandwidth grant of the ONU that generated the interference signal before the interference signal detection.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • an embodiment of the present invention further provides a wavelength terminal, including:
  • Processor 2410 memory 2430, and transceiver 2420.
  • memory 2430 For the function of the memory, please refer to the specific description of the memory 1530.
  • the processor 2410 is configured to detect an interference signal.
  • the transceiver 2420 is configured to broadcast a rogue ONU diagnostic request after detecting the interference signal.
  • the transceiver 2420 is further configured to receive an interference detection request message from the second wavelength terminal, where the interference detection request message is used to indicate that the wavelength terminal performs interference signal detection, where the interference detection is requested.
  • the request message is sent by the second wavelength terminal after terminating the uplink bandwidth grant of the first ONU that generates the interference signal;
  • the transceiver 2420 is further configured to: if the processor 2410 detects that the interference signal disappears under the trigger of the interference detection request message, send, to the second wavelength terminal, an interference detection result message indicating that the detection of the interference signal disappears, the interference The detection result message is used by the second wavelength terminal to determine that the first ONU is a rogue ONU.
  • the processor 2410 is further configured to: before the receiving unit 2330 receives the interference detection request message from the second wavelength terminal, or in the interference detection request message The upstream bandwidth grant of the ONU that generated the interference signal is terminated before triggering the interference signal detection.
  • the interference detection result message is used to trigger the second wavelength terminal to isolate the first ONU.
  • wavelength terminal For a detailed structural diagram of the wavelength terminal, please refer to the wavelength terminal of the detecting unit 2310, the transmitting unit 2320, the control unit 2340, and the receiving unit 2330 included in FIG.
  • the embodiment of the present invention further provides a passive optical network, including a wavelength termination, a wavelength division multiplexer, an optical network unit ONU, and an optical distribution network, where the wavelength terminal is connected to the optical distribution network by using the wavelength division multiplexer.
  • the optical network unit is connected to the optical distribution network; wherein the wavelength termination is any wavelength terminal provided by the foregoing embodiment of the present invention.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the steps of any one of the methods described in the foregoing method embodiments.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described above as separate components may or may not be physically separated.
  • the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the above-described integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, server or network device, etc., and in particular a processor in a computer device) to perform all or part of the steps of the above-described methods of various embodiments of the present invention.
  • the foregoing storage medium may include: a U disk, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), and the like. The medium of the code.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé de commande d'une unité de réseau optique (ONU) indésirable, un appareil associé, et un réseau optique passif. Dans la solution technique décrite dans un mode de réalisation de l'invention, après qu'un signal brouilleur a été détecté, un premier terminal de canal ordonne à un second terminal de canal de mettre un terme à l'octroi d'une bande passante amont à une première ONU générant le signal brouilleur, et déduit si la première ONU est une ONU indésirable ou non d'après l'existence ou la disparition du signal brouilleur avant et après la fin de l'octroi de la bande passante amont à la première ONU par le second terminal de canal. Ce mécanisme peut déterminer efficacement si la première ONU étant une ONU indésirable ou non, ce qui facilite l'identification effective d'une ONU indésirable. La solution technique fournie dans le mode de réalisation de l'invention facilite l'identification effective d'une ONU indésirable.
PCT/CN2015/094192 2015-11-10 2015-11-10 Procédé de commande d'unité de réseau optique indésirable, appareil associé, et réseau optique passif WO2017079894A1 (fr)

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PCT/CN2015/094192 WO2017079894A1 (fr) 2015-11-10 2015-11-10 Procédé de commande d'unité de réseau optique indésirable, appareil associé, et réseau optique passif

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CN114374900A (zh) * 2022-01-04 2022-04-19 烽火通信科技股份有限公司 分配标识符异常占用处理方法、装置、设备及存储介质
CN114640906A (zh) * 2020-11-28 2022-06-17 华为技术有限公司 传输调度的方法、装置、计算设备和存储介质

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US7778543B2 (en) * 2006-05-26 2010-08-17 Alcatel Lucent Passive optical network rogue optical network unit diagnostics
CN102201860A (zh) * 2010-03-24 2011-09-28 中兴通讯股份有限公司 光网络单元异常发光故障隔离系统及方法
CN102291270A (zh) * 2010-06-21 2011-12-21 中兴通讯股份有限公司 一种无源光网络中光网络单元的管理方法和系统
CN104660329A (zh) * 2013-11-21 2015-05-27 上海贝尔股份有限公司 一种在无源光网络中识别长发光流氓onu的方法

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US7778543B2 (en) * 2006-05-26 2010-08-17 Alcatel Lucent Passive optical network rogue optical network unit diagnostics
CN102201860A (zh) * 2010-03-24 2011-09-28 中兴通讯股份有限公司 光网络单元异常发光故障隔离系统及方法
CN102291270A (zh) * 2010-06-21 2011-12-21 中兴通讯股份有限公司 一种无源光网络中光网络单元的管理方法和系统
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Publication number Priority date Publication date Assignee Title
CN114640906A (zh) * 2020-11-28 2022-06-17 华为技术有限公司 传输调度的方法、装置、计算设备和存储介质
CN114374900A (zh) * 2022-01-04 2022-04-19 烽火通信科技股份有限公司 分配标识符异常占用处理方法、装置、设备及存储介质
CN114374900B (zh) * 2022-01-04 2023-05-12 烽火通信科技股份有限公司 分配标识符异常占用处理方法、装置、设备及存储介质

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