WO2024055782A1 - Procédé d'inscription pour unité de réseau optique, et terminal de ligne optique, unité de réseau optique et support - Google Patents

Procédé d'inscription pour unité de réseau optique, et terminal de ligne optique, unité de réseau optique et support Download PDF

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Publication number
WO2024055782A1
WO2024055782A1 PCT/CN2023/111966 CN2023111966W WO2024055782A1 WO 2024055782 A1 WO2024055782 A1 WO 2024055782A1 CN 2023111966 W CN2023111966 W CN 2023111966W WO 2024055782 A1 WO2024055782 A1 WO 2024055782A1
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Prior art keywords
onu
line terminal
optical line
volt
registration
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PCT/CN2023/111966
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English (en)
Chinese (zh)
Inventor
王乐
薛涛
毛祖金
徐振坤
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中兴通讯股份有限公司
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Publication of WO2024055782A1 publication Critical patent/WO2024055782A1/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
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems

Definitions

  • the present disclosure relates to the field of optical communication technology, and in particular to a registration method of an optical network unit, an optical line terminal, an optical network unit, and a computer-readable storage medium.
  • optical line terminal In Gigabit-capable Passive Optical Network (GPON, Gigabit-capable Passive Optical Network), optical line terminal (OLT, Optical Line Terminal) serves as central office equipment, and an OLT downstream passive optical network (PON, Passive Optical Network) port can Connect and manage multiple optical network units (ONU, Optical Network Unit) to provide end users with services such as Internet access, interactive Internet TV (IPTV), and voice transmission based on Internet Protocol (VoIP, Voice over Internet Protocol).
  • IPTV interactive Internet TV
  • VoIP Voice over Internet Protocol
  • One physical OLT can be virtualized into multiple virtual optical line terminals (vOLT, virtual Optical Line Terminal), so that the physical OLT can be used as an open hardware platform. Multiple vOLTs share the hardware resources of the same physical OLT and can realize dynamic resources Allocation can help simplify the network structure, shorten service deployment time, realize resource sharing between departments or operators, and can also save physical hardware resource costs.
  • embodiments of the present disclosure provide a registration method for an optical network unit ONU, which is applied to an optical line terminal OLT configured with at least one virtual optical line terminal vOLT, including: when any of the virtual optical line terminal vOLT obtains When sending the registration message of the optical network unit ONU, the content of the virtual optical line terminal label carried in the registration message is verified.
  • the virtual optical line terminal label is used to mark the virtual optical line terminal vOLT to which the optical network unit ONU belongs.
  • the identification and when the content of the virtual optical line terminal tag is consistent with the identification of the current virtual optical line terminal vOLT, register the optical network unit ONU to the current virtual optical line terminal vOLT. .
  • embodiments of the present disclosure provide a registration method for an optical network unit ONU, which is applied to an optical network unit ONU and includes: generating a registration message, the registration message carrying a virtual optical line terminal label, and the virtual optical line terminal label used to mark the identifier of the virtual optical line terminal vOLT to which the optical network unit ONU belongs; and send the registration message.
  • an optical line terminal including:
  • a memory with at least one computer program stored thereon.
  • the at least one processor implements the optical network unit described in the first aspect of the embodiment of the present disclosure (ONU) registration method.
  • an optical network unit including:
  • a memory with at least one computer program stored thereon.
  • the at least one processor implements the optical network unit described in the second aspect of the embodiment of the present disclosure (ONU) registration method.
  • an embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the registration of the optical network unit ONU described in the first aspect of the embodiment of the present disclosure is implemented.
  • Figure 1 is a flow chart of a registration method for an optical network unit in an embodiment of the present disclosure
  • Figure 2 is a schematic diagram of a network architecture in an embodiment of the present disclosure
  • Figure 3 is a flow chart of some steps in a registration method for an optical network unit in an embodiment of the present disclosure
  • Figure 4 is a flow chart of some steps in a registration method for an optical network unit in an embodiment of the present disclosure
  • Figure 5 is a flow chart of a registration method for an optical network unit in an embodiment of the present disclosure
  • Figure 6 is a flow chart of some steps in a registration method for an optical network unit in an embodiment of the present disclosure
  • Figure 7 is a block diagram of an optical line terminal in an embodiment of the present disclosure.
  • Figure 8 is a block diagram of an optical network unit in an embodiment of the present disclosure.
  • the ONU discovery and registration mechanism includes: an unregistered ONU sends its serial number (SN, Serial Number) to the OLT, and the OLT receives the serial number of the unregistered ONU and adds it to its unregistered ONU list.
  • OLT operation and maintenance personnel can issue ONU registration commands to unregistered ONUs based on the unregistered ONU list to complete ONU registration management.
  • a physical OLT is virtualized into multiple vOLTs and multiple vOLTs share the same physical PON port, when a new ONU is connected to the physical PON port, it is impossible to automatically determine which vOLT the new ONU should belong to.
  • one solution is to plan in advance which vOLT each newly connected ONU belongs to from the perspective of the ONU.
  • the specific implementation is to manually configure the ONU with a certain serial number.
  • a certain vOLT was discovered.
  • this solution relies on manual configuration by operation and maintenance personnel, and needs to know the serial number of each ONU or the number segment of the ONU serial number in advance.
  • the number of ONU serial numbers is large, especially when the ONU serial number does not exist.
  • manual configuration operations are difficult, seriously affecting the efficiency of ONU registration management; in addition, during the ONU registration process, operation and maintenance personnel may still operate terminals that do not belong to themselves, such as registering ONUs that do not belong to themselves to their own vOLT. It is easy to cause information leakage between different vOLTs.
  • an embodiment of the present disclosure provides an ONU registration method, which is applied to an optical line terminal OLT configured with at least one vOLT.
  • the registration method includes S11 and S12.
  • any of the vOLTs obtains the registration message of the ONU, verify the content of the virtual optical line terminal label carried in the registration message.
  • the virtual optical line terminal label is used to mark the vOLT to which the ONU belongs. logo.
  • a physical OLT can be virtualized into one or more vOLTs, and different vOLTs have different identities.
  • the OLT may include a shared physical port shared by multiple vOLTs, may also include a non-shared physical port, or may include both a shared physical port and a non-shared physical port.
  • the physical port is a PON port.
  • the registration message can be obtained by the vOLT from a shared physical port, or it can be obtained by the vOLT from a non-shared physical port. The embodiment of the present disclosure does not impose any special limitations on this.
  • the ONU sends a registration message to the OLT.
  • the registration message carries a virtual optical line terminal label (vOLT label) marked with the identity of the vOLT to which the ONU belongs.
  • vOLT label virtual optical line terminal label
  • Each vOLT configured in the OLT obtains
  • the content of the virtual optical line terminal label is verified, and the ownership of the ONU is determined by judging whether the content of the virtual optical line terminal label is consistent with the identity of the vOLT. Only the vOLT whose identity is consistent with the content of the virtual optical line terminal label can be Process registration messages.
  • vOLT can directly identify the ONU it belongs to, which improves the convenience of ONU registration management; vOLT only registers the ONU it belongs to, avoiding information leakage between different vOLTs and improving information security; in addition, Since the number of vOLTs configured in the OLT is limited, and the identification of vOLTs is usually regular, it is easier to determine the ownership of an ONU based on the identification of vOLTs than based on the serial number of the ONU, further improving the convenience of ONU registration and management. It improves the efficiency of ONU registration management.
  • FIG 2 there is a shared physical port in the OLT that is shared by multiple vOLTs.
  • the ONU can access the OLT through a shared physical port, or it can access the OLT through a non-shared physical port.
  • the embodiments of the present disclosure do not impose special limitations on this.
  • Figure 2 only shows the scenario where an ONU is connected to multiple vOLTs through a shared physical port.
  • the registration message may be received through a shared physical port shared by multiple vOLTs, or may be received through a non-shared physical port.
  • the vOLT can only verify the content of the virtual optical line terminal label of the registration message received from the shared physical port, and does not verify the registration message received from the non-shared physical port.
  • one vOLT may correspond to multiple physical ports, and the multiple physical ports may include shared physical ports and For non-shared physical ports, vOLT can also verify the contents of the virtual optical line terminal tag of the registration message received from the shared physical port and the registration message received from the non-shared physical port.
  • the embodiments of the present disclosure do not impose special limitations on this.
  • the verification of the content of the virtual optical line terminal label carried in the registration message includes S111 and S112.
  • S111 Determine whether the registration message is received from a shared physical port, and multiple virtual optical line terminals share the shared physical port.
  • the registration message received from the shared physical port is verified, and the registration message received from the non-shared physical port is not verified. , which can ensure that the vOLT only registers the ONU to which it belongs, avoiding information leakage between different vOLTs and improving information security; at the same time, registration messages received from non-shared physical ports are not verified, which is beneficial to saving vOLT Computing resources can also improve the registration efficiency of ONUs connected through non-shared physical ports.
  • the registration messages received from the shared physical port and the non-shared physical port are verified, which can ensure that the vOLT only registers the Registering the ONU avoids information leakage between different vOLTs and improves information security. It also avoids registering the ONU to the wrong vOLT due to connecting the ONU through the wrong non-shared physical port, which is helpful to further improve information security.
  • the embodiment of the present disclosure does not place special restrictions on how to process the registration message when the content of the virtual optical line terminal tag is inconsistent with the identification of the current vOLT. For example, when the content of the optical line terminal tag is inconsistent with the identification of the current vOLT, the registration message can be discarded.
  • the ONU registration method further includes S13.
  • the OLT opens a common upstream quiet window through the BWMap field of the downstream GTC frame. All unregistered ONUs can send the ONU's serial number to the OLT in this blank window.
  • the newly online ONU puts its serial number in the Serial_Number_ONU PLOAM message and sends it to the OLT.
  • the OLT adds the serial number of the newly online ONU to the OLT's unregistered ONU list, and then issues the ONU registration command according to the unregistered ONU list to complete ONU registration management.
  • the registration message is used by the ONU to send its serial number to the vOLT, so that the vOLT can register and manage the ONU according to the ONU discovery and registration mechanism defined in the current standard.
  • the registration message is a Serial_Number_ONU PLOAM message.
  • the virtual optical line terminal label is defined in the Serial_Number_ONU PLOAM message, and in the virtual optical line terminal label Mark the identity of the vOLT to which the ONU belongs.
  • the embodiment of this disclosure does not make any special limitations on how to define the virtual optical line terminal label in the Serial_Number_ONU PLOAM message.
  • the second byte of the Serial_Number_ONU PLOAM message represents the Message ID field, and the first three bits of the Message ID field are not clearly defined.
  • the virtual optical line terminal label is defined in the first three bits of the Message ID field.
  • the Serial_Number_ONU PLOAM message includes a Message ID field, and at least one of the first three bits of the Message ID field is defined as the virtual optical line terminal label.
  • any one of the first bit, second bit, and third bit of the Message ID field can be defined as the virtual optical line terminal label, or the first bit, second bit, and second bit of the Message ID field can be defined as the virtual optical line terminal label. Any two of the bit and the third bit are defined as the virtual optical line terminal label, and the first three bits of the Message ID field can also be defined as the virtual optical line terminal label.
  • defining at least one of the first three bits of the Message ID field as a virtual optical line terminal label can be compatible with current standards, reduce the difficulty of upgrading OLT and vOLT, and improve compatibility.
  • the ONU registration method further includes S14.
  • an OLT is virtualized into 8 vOLTs, numbered from 0 to 7, and each vOLT is assigned a number as an identifier.
  • the embodiment of the present disclosure does not place special limitations on the registration process of registering the optical network unit to the current virtual optical line terminal.
  • the registration message is a Serial_Number_ONU PLOAM message
  • the vOLT that identifies the content consistent with the virtual optical line terminal label performs the ONU registration process in accordance with current standards.
  • the registration message is a new PLOAM message
  • the new PLOAM message carries the virtual optical line terminal label
  • a new PLOAM message is defined as a registration message, and the new PLOAM message is different from the PLOAM message interacted between the OLT and ONU in the ONU discovery and registration process defined by current standards.
  • the new PLOAM message carries the vOLT label, which is used to mark the identification (vOLT ID) of the vOLT to which the ONU belongs.
  • the ONU registration method further includes: when any vOLT obtains the serial number of the ONU, adding the serial number of the ONU to the unregistered ONU list of the current vOLT; and in the virtual optical line If the content of the terminal label is inconsistent with the identification of the current vOLT, the ONU serial number is deleted from the unregistered ONU list of the current vOLT.
  • the ONU puts its serial number in the Serial_Number_ONU PLOAM message, and sends the Serial_Number_ONU PLOAM message to the OLT configured with at least one vOLT.
  • Each vOLT in the OLT receives the Serial_Number_ONU PLOAM message to obtain the serial number of the ONU.
  • the ONU When the content of the virtual optical line terminal label is consistent with the identity of the current vOLT, the ONU is registered according to the ONU discovery and registration process defined by the current standard; when the content of the virtual optical line terminal label is inconsistent with the identity of the current vOLT In this case, delete the ONU's serial number from the current vOLT's unregistered ONU list, making the ONU invisible to operation and maintenance personnel. This prevents the ONU from registering to the wrong vOLT.
  • an embodiment of the present disclosure provides a registration method for an optical network unit, which is applied to the optical network unit and includes S21 and S22.
  • the ONU sends a registration message to the OLT.
  • the registration message carries a virtual optical line terminal label (vOLT label) marked with the identity of the vOLT to which the ONU belongs.
  • vOLT label virtual optical line terminal label
  • Each vOLT configured in the OLT obtains
  • the content of the virtual optical line terminal label is verified, and the ownership of the ONU is determined by judging whether the content of the virtual optical line terminal label is consistent with the identity of the vOLT. Only the vOLT whose identity is consistent with the content of the virtual optical line terminal label can be Process registration messages.
  • vOLT can directly identify the ONU it belongs to, which improves the convenience of ONU registration management; vOLT only registers the ONU it belongs to, avoiding information leakage between different vOLTs and improving information security; in addition, Since the number of vOLTs configured in the OLT is limited, and the identification of vOLTs is usually regular, it is easier to determine the ownership of an ONU based on the identification of vOLTs than based on the serial number of the ONU, further improving the convenience of ONU registration and management. It improves the efficiency of ONU registration management.
  • the OLT opens a common upstream quiet window through the BWMap field of the downstream GTC frame. All unregistered ONUs can send the ONU's serial number to the OLT in this blank window.
  • the newly online ONU puts its serial number in the Serial_Number_ONU PLOAM message and sends it to the OLT.
  • the OLT adds the serial number of the newly online ONU to the OLT's unregistered ONU list, and then issues the ONU registration command according to the unregistered ONU list to complete ONU registration management.
  • the embodiment of this disclosure does not place any special restrictions on how the ONU determines the identity of the belonging vOLT.
  • the identity of the vOLT to which the ONU belongs can be determined based on a version customized by the operator; a configuration port can also be provided in the ONU, and the identity of the vOLT to which the ONU belongs can be configured through the configuration port.
  • the ONU registration method before generating the registration message (S21), the ONU registration method further includes S23.
  • the registration message is a new PLOAM message
  • the new PLOAM message carries the virtual optical line terminal label
  • the ONU puts its serial number in the Serial_Number_ONU PLOAM message and sends the Serial_Number_ONU PLOAM message to the OLT.
  • an embodiment of the present disclosure provides an optical line terminal (OLT), including: at least one processor 101; a memory 102 on which at least one computer program is stored.
  • OLT optical line terminal
  • processor 101 executes, at least one processor 101 implements the registration method of the optical network unit described in the first aspect of the embodiment of the present disclosure; at least one I/O interface 103 is connected between the processor 101 and the memory 102, configured In order to realize information interaction between the processor 101 and the memory 102.
  • the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.; the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically such as SDRAM, DDR etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I/O interface (read-write interface) 103 is connected between the processor 101 and the memory 102, and can realize processing
  • the information exchange between the device 101 and the memory 102 includes but is not limited to a data bus (Bus), etc.
  • processor 101 memory 102, and I/O interface 103 are connected to each other and, in turn, to other components of the computing device via bus 104.
  • an embodiment of the present disclosure provides an optical network unit ONU, including: at least one processor 201; a memory 202 with at least one computer program stored thereon.
  • at least one computer program is processed by at least one processor
  • at least one processor 201 implements the registration method of the optical network unit described in the second aspect of the embodiment of the present disclosure
  • at least one I/O interface 203 is connected between the processor 201 and the memory. 202, configured to realize information interaction between the processor 201 and the memory 202.
  • the processor 201 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.; the memory 202 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically such as SDRAM, DDR etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I/O interface (read-write interface) 203 is connected between the processor 201 and the memory 202, and can realize processing
  • the information exchange between the device 201 and the memory 202 includes but is not limited to a data bus (Bus), etc.
  • processor 201 memory 202, and I/O interface 203 are connected to each other and, in turn, to other components of the computing device via bus 204.
  • an embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the registration method of an optical network unit described in the first aspect of the embodiment of the present disclosure is implemented or At least one of the registration methods for optical network units described in the second aspect of the embodiments of this disclosure.
  • one OLT is virtualized into 8 vOLTs, numbered from 0 to 7, and each vOLT is assigned a number as an identifier.
  • the format of the PLOAM message exchanged between OLT and ONU contains 13 bytes (byte), and the second byte represents the Message ID field.
  • the first three bits of the Message ID field are defined as vOLT tags, which are used to mark the identification (vOLT ID) of the vOLT to which the ONU belongs.
  • an ONU When an ONU sends a PLOAM message, it marks the vOLT ID of the vOLT to which the ONU belongs in the vOLT tag of the PLOAM message, so that only the vOLT to which the ONU belongs can identify and process the PLOAM message, preventing the ONU from being discovered and registered by other vOLTs.
  • any vOLT in the OLT receives the PLOAM message from the shared PON port and verifies the content of the vOLT tag represented by the first three bits of the Message ID field; when the content of the vOLT tag matches Current vOLT When the IDs are consistent, the registration message is processed; when the content of the vOLT tag is inconsistent with the current vOLT ID, the registration message is discarded.
  • vOLT When vOLT receives a PLOAM message from a non-shared PON port, it can verify the first three bits of the Message ID field or not.
  • the ONU discovery and registration process includes steps 1 to 18.
  • the OLT sends a downlink GTC frame every 125 microseconds (us).
  • the ONU clears the local LOS/LOF and enters the O2 state from the O1 state.
  • the OLT sends the downstream Upstream_Overhead PLOAM message, which defines the preamble, delimiter, ONU equalization delay and other parameters of the upstream frame.
  • the ONU After receiving the Upstream_Overhead PLOAM message, the ONU sets the preamble, delimiter, equalization delay and other parameters of the upstream frame according to the content of the message, and enters the O3 state from the O2 state.
  • the OLT sends the downlink Extended_Burst_Length PLOAM message, which defines the uplink frame preamble length during ranging and the uplink frame preamble length during normal operation. A longer preamble is generally used during the ranging process, which is beneficial for the OLT to capture the uplink frame signal of the ONU.
  • the ONU After receiving the Extended_Burst_Length PLOAM message, the ONU sets the uplink frame preamble length during ranging and the uplink frame preamble length during normal operation according to the content in the message.
  • the OLT opens a common upstream quiet window through the BWMap field of the downstream GTC frame. All unregistered ONUs can send their serial numbers to the OLT in this blank window.
  • ONU puts its serial number in the Serial_Number_ONU PLOAM message.
  • the Message ID field of the Serial_Number_ONU PLOAM message is defined with a vOLT tag.
  • the vOLT tag is marked with the vOLT ID, and the Serial_Number_ONU PLOAM message is sent to the OLT.
  • any vOLT in the OLT receives the serial number of the ONU, it determines whether the serial number is received from the shared PON port. If so, it defines in the Message ID field Verify the vOLT tag to determine whether the vOLT ID field is consistent with the current vOLT; if consistent, assign an ONU ID to the ONU and send it to the ONU through the Assign_ONU_ID PLOAM message.
  • ONU receives the Assign_ONU_ID PLOAM message and enters the O4 state from the O3 state.
  • the OLT opens an upstream quiet window for a certain ONU ID through the BWMap field of the downstream GTC frame.
  • the ONU sends its own serial number to the OLT in this blank window for ranging.
  • the OLT After receiving the ONU's serial number, the OLT calculates the ONU's distance and equalization delay parameters. The equalization delay parameters are sent to the ONU through the Ranging_Time PLOAM message.
  • ONU receives the Ranging_Time PLOAM message, sets its own equilibrium delay value, and enters the O5 state from the O4 state.
  • the OLT needs to perform password verification on the ONU, it will send a Request_password PLOAM message, requiring the ONU to report its password.
  • ONU sends its password to the OLT through the Password PLOAM message.
  • the ONU password verification passes, and the OLT issues the Configure Port-ID PLOAM message to configure the ONU's OMCI management channel.
  • ONU sets the OMCI management channel. Through this management channel, the OLT can configure and manage the ONU's services.
  • the ONU registration process ends.
  • one OLT is virtualized into 8 vOLTs, numbered from 0 to 7, and each vOLT is assigned a number as the identification of the vOLT.
  • the new PLOAM message carries the vOLT label, which is used to mark the identification (vOLT ID) of the vOLT to which the ONU belongs.
  • the ONU puts its serial number in the Serial_Number_ONU PLOAM message and Send the Serial_Number_ONU PLOAM message to the OLT.
  • the ONU also sends the new PLOAM message carrying the vOLT label to the OLT.
  • vOLT After vOLT receives the Serial_Number_ONU PLOAM message, it adds the ONU to its own unregistered ONU list.
  • the vOLT After the vOLT receives the new PLOAM message carrying the vOLT label, it verifies the vOLT label to determine whether the vOLT ID field is consistent with the current vOLT. If they are consistent, the ONU will be registered to the current vOLT; if they are inconsistent, the serial number of the ONU will be deleted from the unregistered ONU list of the current vOLT, making the ONU invisible to operation and maintenance personnel, thereby avoiding ONU registration errors. vOLT.
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes volatile and nonvolatile media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. removable, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disk (DVD) or other optical disk storage, magnetic cassettes, tapes, disk storage or other magnetic storage devices, or may Any other medium used to store desired information and that can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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Abstract

La présente divulgation concerne un procédé d'inscription pour une unité de réseau optique (ONU). Le procédé est appliqué à un terminal de ligne optique (OLT), qui est configuré avec au moins un terminal virtuel de ligne optique (vOLT), et le procédé consistant à : lorsqu'un quelconque vOLT acquiert un message d'inscription d'une ONU, vérifier le contenu d'une étiquette de vOLT, qui est transporté dans le message d'inscription, l'étiquette de vOLT étant utilisée pour marquer un identifiant d'un vOLT auquel appartient l'ONU ; et lorsque le contenu de l'étiquette de vOLT coïncide avec un identifiant du vOLT actuel, inscrire l'ONU auprès du vOLT actuel. La présente invention concerne en outre un procédé d'inscription d'ONU pour une ONU, ainsi qu'un OLT, une ONU et un support de stockage lisible par ordinateur.
PCT/CN2023/111966 2022-09-16 2023-08-09 Procédé d'inscription pour unité de réseau optique, et terminal de ligne optique, unité de réseau optique et support WO2024055782A1 (fr)

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CN202211127750.6A CN117768810A (zh) 2022-09-16 2022-09-16 光网络单元的注册方法、光线路终端、光网络单元、介质
CN202211127750.6 2022-09-16

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