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WO2021179648A1 - Procédé de transfert de données dans une communication par fibre optique et dispositif associé - Google Patents

Procédé de transfert de données dans une communication par fibre optique et dispositif associé Download PDF

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Publication number
WO2021179648A1
WO2021179648A1 PCT/CN2020/127464 CN2020127464W WO2021179648A1 WO 2021179648 A1 WO2021179648 A1 WO 2021179648A1 CN 2020127464 W CN2020127464 W CN 2020127464W WO 2021179648 A1 WO2021179648 A1 WO 2021179648A1
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Prior art keywords
slice
target service
service
downlink message
target
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Ceased
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PCT/CN2020/127464
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English (en)
Chinese (zh)
Inventor
刘晓斌
胡海涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0086—Network resource allocation, dimensioning or optimisation

Definitions

  • This application relates to the field of communication technology, and in particular to a data forwarding method and related devices in optical fiber communication.
  • traffic classification technology needs to be used to classify traffic.
  • traffic and traffic resources are controlled to provide different levels of services.
  • One method of traffic identification is to classify the traffic according to the PRI field in the virtual local area network (VLAN) frame header.
  • the length of the PRI field is 3 bits, which can represent 8 priority levels, and the values are 7, 6, 5, 4, 3, 2, 1, and 0 in descending order of priority.
  • the priority identification of each service the corresponding level of service quality can be obtained, such as service delay, jitter, and available bandwidth.
  • one type of business may include multiple sub-types of business, and different sub-types of business have different requirements for service quality.
  • the eight levels of service quality can no longer meet the actual business's demand for service quality.
  • the present application provides a data forwarding method and related devices in optical fiber communication, which can create a network slice for a target service, and schedule service data through the network slice, so as to meet the service quality requirements of the target service.
  • the first aspect provides a data forwarding method in optical fiber communication.
  • a slice of a target service is created, and the target service is a virtual reality service or a high-definition video live broadcast service; a downlink message sent by a broadband network gateway is received; When one or more of the five-tuple information of the downlink message is found in the information table, the downlink message is added to the slice of the target service; after obtaining the downlink message from the slice of the target service, the downlink message is sent to the optical Network terminal.
  • slicing is also called network slicing.
  • the high-definition video live broadcast service is a live video service with a resolution greater than 2K, such as a 4K live broadcast service or an 8K live broadcast service or higher resolution live broadcast service.
  • the 4K resolution adopted by the 4K live broadcast service is 4K resolution, which means that the pixel value of each row in the horizontal direction reaches or is close to 4096.
  • a network slice can be created for the target business, and the data of the target business can be scheduled through the network slice, so as to meet the service quality requirements of the target business.
  • the above method can create network slices for virtual reality services, network slices for high-definition video live broadcast services, and network slices for two services, and then use the two network slices to forward virtual reality service packets or high-definition video live broadcast services. Message.
  • the order in which the network slices of the two services are created is not limited, and they can be created one after the other or at the same time.
  • the above data forwarding method further includes: receiving an uplink packet sent by an optical network terminal before creating a slice of the target service; when five of the uplink packets are found in the preset information table. When one or more of the tuple information is used, a slice of the target business is created. This provides a way to create a network slice of the target service. In addition, network slices can be pre-created for the target service without the need for uplink messages.
  • adding the message to the slice of the target service includes: determining the target queue corresponding to the priority of the message; adding the message to the target queue; and obtaining the message from the slice of the target service.
  • the text includes: getting a message from the target queue.
  • the slice of the target service includes multiple queues, and each queue corresponds to a priority one-to-one.
  • the number of queues included in the target service slice is not limited. When the target service slice includes 8 queues and the priority identifier is also 8, the message can be added to the corresponding queue according to the priority.
  • the data forwarding method further includes: when one or more of the five-tuple information of the downlink message is not found in the preset information table, indicating that the downlink message If it does not belong to the target service, add the downlink message to the slice of the non-target service; obtain the downlink message from the slice of the non-target service; and send the downlink message to the optical network terminal.
  • Non-target business refers to business other than the target business.
  • non-target services can be scheduled in a network slice according to priority.
  • the scheduling priority of the slice of the target service is higher than the scheduling priority of the slice of the non-target service.
  • the target business can be prioritized to meet the service quality requirements of the target business.
  • the scheduling priority of the network slicing of the virtual reality service may be higher than, equal to, or lower than the network slicing of the high-definition video live broadcast service.
  • a data forwarding device in a second aspect, includes a first interface, a processing unit, and a second interface processing unit, configured to create a slice of a target service, the target service being a virtual reality service or a high-definition video live broadcast service; the first interface , Is used to receive the downlink message sent by the broadband network gateway; the processing unit is used to add the downlink message to the target service when one or more of the five-tuple information of the downlink message is found in the preset information table The slicing of the target service; the downlink packet is obtained from the slicing of the target service; the second interface is used to send the downlink packet to the optical network terminal.
  • the data forwarding device may specifically be an optical line terminal.
  • the first interface may be an Ethernet interface.
  • the second interface may be a passive optical fiber network interface. The number of Ethernet interfaces and passive optical network interfaces can be one or more.
  • the second interface is also used to receive the uplink packet sent by the optical network terminal; the processing unit is specifically used to find the quintuple of the uplink packet in the preset information table When one or more items in the information, create a slice of the target business.
  • the slice of the target service includes multiple queues, and each queue corresponds to a priority one-to-one; the processing unit is specifically configured to determine the target queue corresponding to the priority of the downlink packet ; Add the downlink message to the target queue; obtain the downlink message from the target queue.
  • the processing unit is further configured to add one or more of the quintuple information of the downlink message in the preset information table, adding the downlink message Slices of non-target services; Obtain downlink messages from slices of non-target services; Send downlink messages to the optical network terminal.
  • the scheduling priority of the slice of the target service is higher than the scheduling priority of the non-target service.
  • a third aspect provides a computer-readable storage medium in which a computer program is stored, which when running on a computer, causes the computer to execute the data forwarding method described in the first aspect.
  • the fourth aspect provides a computer program, which when running on a computer, causes the computer to execute the data forwarding method described in the first aspect.
  • a fifth aspect provides a chip system that includes a processor for supporting an optical line terminal to implement the functions involved in the above aspects, for example, sending or processing data and/or information involved in the above methods.
  • the chip system further includes a memory, and the memory is used to store necessary program instructions and data for the optical line terminal.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • FIG. 1 is a schematic diagram of the optical fiber communication system in this application.
  • FIG. 2 is a flow chart of the data forwarding method in this application.
  • FIG. 3 is another signaling interaction diagram of the data forwarding method in this application.
  • Figure 4 is a schematic structural diagram of the data forwarding device in this application.
  • FIG. 1 is a schematic diagram of an optical fiber communication system.
  • the optical fiber communication system may include a user terminal 101, an optical network terminal (optical network terminal, ONT) 20, an optical line terminal (OLT) 30, a broadband network gateway (broadband network gateway, BNG) 40, and services. Server 50 etc.
  • ONT optical network terminal
  • ONT optical line terminal
  • BNG broadband network gateway
  • the user terminal 10 sends information, such as service information or user information, to the ONT 20.
  • the ONT 20 sends the above information to the OLT 30, and the OLT 30 classifies the above information according to service types, and then sends the above information to various service servers 50 through the BNG 40.
  • the service server 50 may provide one or more services, such as a video service, an audio service, a real-time communication service, and a batch transmission service.
  • the service data is dispatched and sent to the ONT 20, and the ONT 20 will send it to the user terminal 10.
  • the OLT can also implement device-based network element management and service-based security management and configuration management. Not only can it monitor and manage devices and ports, but it can also perform service activation and user status monitoring, and it can also allocate bandwidth according to the quality of service (QoS) or service level agreement (SLA) requirements of different users , As well as management and ranging of the ONT.
  • QoS quality of service
  • SLA service level agreement
  • BNG40 can also be used for bandwidth control.
  • the user terminal 10 may also be referred to as a terminal device, terminal, user equipment, electronic device, and so on.
  • the user terminal 10 may specifically be a digital TV, a personal computer, a mobile phone, a tablet computer, a virtual reality (VR) device, and the like.
  • One method classifies traffic according to the PRI field in the 802.1p domain of the virtual local area network (VLAN) frame header.
  • the length of the PRI field is 3 bits (bit), which can indicate a total of 8 priority levels.
  • the values are 7, 6, 5, 4, 3, 2, 1, and 0 in the order of priority, with different priorities Identifies different levels of service quality requirements.
  • the service can obtain the corresponding delay, jitter and available bandwidth.
  • the correspondence between the service type and the Ethernet priority can be as shown in Table 1:
  • Another method of traffic classification is to classify traffic according to the type of service (Tos) field of the IP message.
  • the Tos field includes 3 bits and can only represent 8 priority levels, so that only 8 types of services can be distinguished.
  • Another method of traffic classification is to classify the traffic based on the TC value of the IPv6 packet.
  • Another method of traffic classification is to classify traffic based on the EXP domain value of a multi-protocol label switching (multiprotocol label switching, MPLS) message. All of the above traffic classification methods can only distinguish limited types of business traffic.
  • MPLS multi-protocol label switching
  • video services include sub-categories such as VR services, high-definition video live broadcast services, and interactive Internet TV (IPTV) services.
  • IPTV Internet TV
  • VR services require lower latency.
  • the VR service flow and the IPTV service flow are scheduled together.
  • the IPTV service quality requirement is met, and it is difficult to meet the service quality requirement of the VR service (for example, the delay requirement).
  • scheduling high-definition video live service traffic and IPTV service traffic together will also be difficult to meet the delay requirements of the high-definition video live service.
  • this application classifies traffic according to IP quintuples, and then creates network slices for VR services or HD video live broadcast services, and uses network slices to schedule VR services Or high-definition video live broadcast service traffic to meet its service quality requirements.
  • the method for data forwarding performed by an optical line terminal is described in detail below. Referring to FIG. 2, an embodiment of the data forwarding method in this application includes:
  • Step 201 Create a slice of the target service, where the target service is a virtual reality service or a high-definition video live broadcast service.
  • slices are also called network slices.
  • Network slicing can provide an end-to-end virtual network, including not only the network, but also computing and storage functions. Network slicing can not only achieve service isolation, but also isolate the services of different users. You can create network slices for virtual reality services, you can also create network slices for high-definition video live broadcast services, and you can also create network slices for two services separately. The order in which the network slices of the two services are created is not limited, and they can be created one after the other or at the same time.
  • Step 202 Receive a downlink message sent by the broadband network gateway.
  • the broadband network gateway can receive the downlink message sent by the service server, and then send the downlink message to the optical line terminal.
  • Step 203 When one or more of the quintuple information of the downlink message is found in the preset information table, the downlink message is added to the slice of the target service.
  • the quintuple information includes: source IP address, source port number, destination IP address, destination port number, and protocol identifier.
  • the preset information table stores the server IP address of the target service, and when the source IP address of the downlink message is the server IP address of the target service, it is determined that the downlink message belongs to the target service message.
  • the preset information table stores the IP address of the user terminal. When the destination IP address of the downlink message is the IP address of the aforementioned user terminal, it is determined that the downlink message belongs to the target service message.
  • the preset information table stores a protocol identifier corresponding to the target service. When the downlink message carries the protocol identifier, it is determined that the downlink message belongs to the target service message.
  • the preset information table stores the source port number corresponding to the target service. When the source port number of the downlink message is consistent with the source port number stored in the preset information table, it indicates that the downlink message belongs to the message of the target service. In another example, the preset information table stores the destination port number corresponding to the target object. When the destination port number of the downlink message is consistent with the destination port number stored in the preset information table, it indicates that the downlink message belongs to the message of the target service.
  • the above describes the method for judging whether the downlink message belongs to the target service message according to one item in the quintuple information.
  • This application can also judge whether the downlink message belongs to the target service message according to multiple items in the quintuple information.
  • the information contained in the preset information table can be set according to actual judgment conditions, which is not limited in this application.
  • Step 204 Obtain a downlink message from the slice of the target service.
  • Step 205 Send the downlink message to the optical network terminal.
  • a network slice is created for the target service, so that the target service is separated from the non-target service.
  • the data of the target service is scheduled through network slicing, so that when non-target services are scheduled, the transmission of the target service will not be affected, thereby meeting the service quality requirements of the target service.
  • the above data forwarding method further includes: receiving an uplink message sent by an optical network terminal;
  • Creating a slice of the target service includes: creating a slice of the target service when one or more of the quintuple information of the uplink message is found in the preset information table.
  • the uplink message may be a service request or service data.
  • the preset information table When one or more of the five-tuple information of the uplink message is found in the preset information table, it means that the uplink message belongs to the message of the target service. At this time, a slice of the target service is created to facilitate the transmission of the target service. Subsequent messages.
  • the preset information table stores the address of the server IP of the target service.
  • the destination IP address of the uplink message is the address of the server IP of the target service, it is determined that the uplink message belongs to the message of the target service.
  • the preset information table stores the IP address of the user terminal.
  • the source IP address of the uplink message is the IP address of the user terminal, it is determined that the uplink message belongs to the message of the target service.
  • the preset information table stores a protocol identifier corresponding to the target service. When the uplink message carries the protocol identifier, it is determined that the uplink message belongs to the message of the target service.
  • the preset information table stores the source port number corresponding to the target service.
  • the preset information table stores the destination port number corresponding to the target service.
  • the uplink message carries the destination port number, it is determined that the uplink message belongs to the message of the target service.
  • optical line terminal can pre-create network slices for the target service without the need for uplink messages.
  • Adding the downlink message to the target service slice includes: determining the target queue corresponding to the priority of the downlink message; adding the downlink message to the target queue;
  • Obtaining the message from the slice of the target service includes: obtaining the downlink message from the target queue.
  • the slice of the target service includes multiple queues, and each queue corresponds to a priority one-to-one.
  • the message can be added to the queue according to the priority.
  • a VR service may include multiple sub-category services, and the service quality requirements of each sub-category service are different from those of other sub-category services. In this way, its sub-category services can be scheduled through 8 priority levels to meet the service quality requirements of its sub-category services.
  • the methods for setting the queue, adding to the queue, and exiting the queue can refer to the relevant description of the VR service slicing, which will not be repeated here.
  • the slice of the target service includes a queue.
  • the packets of the target service are scheduled through a queue.
  • the slice of the target service includes multiple queues, and each queue corresponds to multiple priorities.
  • the priority identifiers can be divided into 4 groups, for example, the first group includes priority 0 and priority 1, and the second group includes priority 2 and Priority 3, the third group includes priority 4 and priority 5, and the second group includes priority 6 and priority 7, so that a group of priority packets are added to a queue.
  • the priority included in each group can also be set in other ways, which is not limited in this application.
  • the above data forwarding method further includes: receiving an uplink message sent by an optical network terminal; when the quintuple information of the uplink message is found in the preset information table, The uplink message is added to the slice of the target service, the uplink message is obtained from the slice, and the uplink message is sent to the broadband network gateway. In this way, the uplink message can be transmitted through the slice of the target service. In another example, the uplink message may not be forwarded through the slice of the target service, but is directly sent by the optical line terminal to the broadband network gateway.
  • the foregoing data forwarding method further includes: when one or more of the five-tuple information of the downlink message is not found in the preset information table, adding the downlink message to the non-target service Slicing; Obtain the downlink message from the slice of the non-target service; Send the downlink message to the optical network terminal.
  • non-target services refer to services other than the target services.
  • the quintuple information of the downlink message is not found in the preset information table, it means that the downlink message does not belong to the target service, so the downlink message is added to the slice of the non-target service.
  • the downlink message can be added to the corresponding queue in the slice of the non-target service according to the priority. In this way, the target service and the non-target service are scheduled through different slices, which can ensure the independence of scheduling, so as to meet the service quality requirements of different services.
  • the scheduling priority of the slice of the target service is higher than the scheduling priority of the slice of the non-target service. In this way, the target business can be prioritized to meet the service quality requirements of the target business.
  • the scheduling priority of the network slicing of the virtual reality service may be higher than, equal to, or lower than the network slicing of the high-definition video live broadcast service.
  • an embodiment of the data forwarding method in this application includes:
  • Step 301 The user terminal sends the virtual reality service request to the optical network terminal.
  • Step 302 The optical line terminal receives the virtual reality service request sent by the optical network terminal.
  • Step 303 When the destination IP address carried in the virtual reality service request is found in the preset information table, the optical line terminal creates a slice of the virtual reality service.
  • Step 304 The optical line terminal sends the virtual reality service request to the broadband network gateway.
  • Step 305 The broadband network gateway forwards the virtual reality service request to the service server.
  • the service server can handle virtual reality services.
  • Step 306 The service server obtains virtual reality service data according to the virtual reality service request.
  • Step 307 The service server sends the virtual reality service data to the broadband network gateway.
  • Step 308 The broadband network gateway sends the virtual reality service data to the optical line terminal.
  • Step 309 When the source IP address of the virtual reality service data is found in the preset information table, the optical line terminal adds the virtual reality service data to the slice of the virtual reality service.
  • Step 310 The optical line terminal obtains virtual reality service data from the slice of the virtual reality service.
  • Step 311 The optical line terminal sends the virtual reality service data to the optical network terminal.
  • Step 312 The optical network terminal sends the virtual reality service data to the user terminal.
  • This method can effectively guarantee the service quality requirements of virtual reality services through network slicing.
  • the virtual reality service request, the virtual reality service data, the source IP address, the destination IP address, etc. are all illustrative examples, and are not intended to limit the application.
  • the present application provides a data forwarding device capable of implementing the data forwarding method in the embodiment shown in FIG. 2 or FIG. 3.
  • the data forwarding device may be an optical line terminal.
  • the data forwarding apparatus 400 includes a first interface 401, a processing unit 402, and a second interface 403:
  • the processing unit 402 is configured to create a slice of a target service, where the target service is a virtual reality service or a high-definition video live broadcast service;
  • the first interface 401 is used to receive a downlink message sent by a broadband network gateway;
  • the processing unit 402 is configured to, when one or more of the five-tuple information of the downlink message is found in the preset information table, add the downlink message to the slice of the target service; obtain the downlink message from the slice of the target service ;
  • the second interface 403 is used to send downlink packets to the optical network terminal.
  • the first interface 401 may be an Ethernet (ethernet, ETH) interface
  • the second interface 403 may be a passive optical network (PON) interface
  • the number of PON interfaces and ETH interfaces may be one or Multiple.
  • the second interface 403 is also used to receive uplink packets sent by the optical network terminal;
  • the processing unit 402 is specifically configured to create a slice of the target service when one or more of the quintuple information of the uplink packet is found in the preset information table.
  • the slice of the target service includes multiple queues, and each queue corresponds to a priority one-to-one;
  • the processing unit 402 is specifically configured to determine the target queue corresponding to the priority of the downlink message; add the downlink message to the target queue; and obtain the downlink message from the target queue.
  • the processing unit 402 is further configured to, when one or more of the quintuple information of the downlink message is not found in the preset information table, add the downlink message to the slice of the non-target service; from the slice of the non-target service Obtain the downlink message in the process; send the downlink message to the optical network terminal.
  • the scheduling priority of the slice of the target service is higher than the scheduling priority of the non-target service.
  • the present application provides a computer-readable storage medium in which a computer program is stored. When it runs on a computer, the computer can execute what is executed by the optical line terminal in the embodiment shown in FIG. 2 or FIG. 3 step.
  • the present application also provides a product including a computer program, which when running on a computer, enables the computer to execute the steps performed by the optical line terminal in the embodiment shown in FIG. 2 or FIG. 3 above.
  • the data forwarding device in this application may specifically be a chip in an optical line terminal.
  • the chip includes a processing unit and a communication unit.
  • the processing unit may be a processor, for example, and the communication unit may be an input/output interface, or a pin. Or circuits, etc.
  • the processing unit can execute the computer-executed instructions stored in the storage unit, so that the optical line terminal executes the data forwarding method in the embodiment shown in FIG. 2 or FIG. 3.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc.
  • the storage unit may also be a storage unit located outside the chip in the wireless access device, such as Read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.
  • ROM Read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit, a microprocessor, an application specific integrated circuit (ASIC) or one or more programs used to control the execution of the method in the first aspect. integrated circuit.
  • the device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physically separate.
  • the physical unit can be located in one place or distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the connection relationship between the modules indicates that they have a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.
  • this application can be implemented by means of software plus necessary general hardware.
  • it can also be implemented by dedicated hardware including dedicated integrated circuits, dedicated CPUs, dedicated memory, Dedicated components and so on to achieve.
  • all functions completed by computer programs can be easily implemented with corresponding hardware.
  • the specific hardware structures used to achieve the same function can also be diverse, such as analog circuits, digital circuits or special-purpose circuits. Circuit etc.
  • software program implementation is a better implementation in more cases.
  • the technical solution of this application essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a computer floppy disk. , U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., including several instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute the methods described in each embodiment of this application .
  • a computer device which can be a personal computer, server, or network device, etc.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • wired such as coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

L'invention concerne un procédé de transfert de données dans une communication par fibre optique consistant à : créer une tranche d'un service cible, le service cible étant un service de réalité virtuelle ou un service de diffusion vidéo en direct à haute définition ; recevoir un paquet en liaison descendante envoyé par une passerelle de réseau à large bande ; lorsqu'un ou plusieurs éléments dans des informations de quintuple du paquet en liaison descendante sont trouvés à partir d'une table d'informations prédéfinie, ajouter le paquet en liaison descendante dans la tranche du service cible ; obtenir le paquet en liaison descendante à partir de la tranche du service cible ; et envoyer le paquet en liaison descendante à un terminal de réseau optique. Le procédé peut créer une tranche de réseau pour le service cible et planifier des données de service au moyen de la tranche de réseau, de façon à satisfaire les exigences de qualité de service du service cible. La présente demande concerne en outre un dispositif de transfert de données pour la mise en œuvre du procédé de transfert de données.
PCT/CN2020/127464 2020-03-11 2020-11-09 Procédé de transfert de données dans une communication par fibre optique et dispositif associé Ceased WO2021179648A1 (fr)

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CN202010165877.1 2020-03-11
CN202010165877.1A CN113395612B (zh) 2020-03-11 2020-03-11 一种光纤通信中的数据转发方法以及相关装置

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