WO2022121552A1 - Procédés de traitement et d'envoi de paquets, terminal, dispositif de communication et support de stockage informatique - Google Patents

Procédés de traitement et d'envoi de paquets, terminal, dispositif de communication et support de stockage informatique Download PDF

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Publication number
WO2022121552A1
WO2022121552A1 PCT/CN2021/127537 CN2021127537W WO2022121552A1 WO 2022121552 A1 WO2022121552 A1 WO 2022121552A1 CN 2021127537 W CN2021127537 W CN 2021127537W WO 2022121552 A1 WO2022121552 A1 WO 2022121552A1
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WO
WIPO (PCT)
Prior art keywords
network slice
network
packet
terminal
identifier
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Application number
PCT/CN2021/127537
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English (en)
Chinese (zh)
Inventor
杨海城
郭海林
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中兴通讯股份有限公司
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Publication of WO2022121552A1 publication Critical patent/WO2022121552A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control

Definitions

  • the embodiments of the present application relate to, but are not limited to, the field of mobile communications, and specifically relate to, but are not limited to, message processing, sending methods, terminals, communication devices, and computer storage media.
  • Network slicing is a method of on-demand networking.
  • 5G communication network connection features that can adapt to the needs of different fields will be provided to achieve on-demand network supply.
  • a terminal supports simultaneous access to multiple network slices (for example, access to a maximum of 8 network slices defined in the 3GPP (3rd Generation Partnership Project) protocol), the IP address of each network slice They may be allocated independently, and the allocation of IP addresses may not be controlled by the operator but be allocated by the enterprise that purchases the slices.
  • IP address conflicts may occur. Once a network slice IP address conflict occurs, the terminal will not be able to use the desired network slice, which will lead to a large number of complaints and may even affect the commercial process of network slice.
  • the packet processing, sending method, terminal, communication device, and computer storage medium provided by the embodiments of the present application aim to solve one of the related technical problems at least to a certain extent, including that after the IP addresses of network slices conflict, the terminal cannot perform normal operations. network communication problems.
  • an embodiment of the present application provides a packet processing method, which is applied to a terminal, including: when the IP addresses of the first network slice applied for by the terminal and the accessed second network slice are the same, accessing the first network slice a network slice, and configure a network interface different from the network interface of the second network slice for the first network slice; receive a first packet sent by the network side, where the first packet includes a network slice identifier, The network slice identifier corresponds to the first network slice or the second network slice; the first packet is distributed to the network interface configured by the corresponding network slice according to the network slice identifier.
  • An embodiment of the present application further provides a method for sending a message, which is applied to a network-side device, including: filling a first message sent to a terminal with a network slice identifier, where the network slice identifier is the same as the current access value of the terminal.
  • the first network slice and the second network slice correspond to the same IP address; the first packet is sent to the terminal.
  • An embodiment of the present application further provides a terminal, including a processor, a memory, and a communication bus; the communication bus is used to implement connection and communication between the processor and the memory; the processor is used to execute one or more stored in the memory.
  • a terminal including a processor, a memory, and a communication bus; the communication bus is used to implement connection and communication between the processor and the memory; the processor is used to execute one or more stored in the memory.
  • a computer program to implement the steps of the message processing method as described above.
  • An embodiment of the present application further provides a communication device, the communication device is set on the network side, and includes a processor, a memory, and a communication bus; the communication bus is used to implement connection and communication between the processor and the memory; the processor uses to execute one or more computer programs stored in the memory, so as to realize the steps of the above-mentioned message sending method.
  • Embodiments of the present application further provide a computer storage medium, where the computer storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the above-mentioned message The steps of the processing method or the message sending method as described above.
  • FIG. 1 is a schematic flowchart of a message processing method according to Embodiment 1 of the present application
  • FIG. 2 is a schematic diagram of an IP packet format according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic diagram of the classification of IP header option fields according to Embodiment 1 of the present application.
  • FIG. 4 is a schematic diagram of the format of an IP header option field according to Embodiment 1 of the present application.
  • FIG. 5 is a schematic flowchart of a message sending method according to Embodiment 1 of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal according to Embodiment 2 of the present application.
  • FIG. 7 is a schematic flowchart 1 of a message processing by the terminal in FIG. 6 according to Embodiment 2 of the present application;
  • FIG. 8 is a second schematic flowchart of the packet processing by the terminal in FIG. 6 according to Embodiment 2 of the present application;
  • FIG. 9 is a schematic structural diagram of a network side device according to Embodiment 2 of the present application.
  • FIG. 10 is a schematic flowchart of packet sending by the network-side device in FIG. 9 according to Embodiment 2 of the present application;
  • FIG. 11 is a schematic structural diagram of a terminal according to Embodiment 3 of the present application.
  • FIG. 12 is a schematic structural diagram of a communication device according to Embodiment 3 of the present application.
  • An embodiment of the present application provides a method for processing a message.
  • the method is applied to a terminal. Referring to FIG. 1, the method includes:
  • IP address of the first network slice applied for by the terminal is the same as the IP address of the accessed second network slice, access the first network slice, and configure the network interface for the first network slice and the second network slice different network interfaces;
  • a network interface After the terminal is connected to the operator's network, a network interface will be virtualized, and the IP address assigned by the core network will be configured on this network interface. Generally speaking, the IP addresses assigned to each network interface should be different from each other. In some cases, if the IP addresses of network slices conflict (that is, two or more network interfaces are assigned the same IP address), The terminal will refuse to access the requested network slice. However, in this embodiment, if the terminal applies for the first network slice and is assigned the same IP address as one or several already accessed second network slices, the terminal still accesses the network slice, and the terminal accesses the network slice for later access. The first network slice is configured with a different network interface than the network interface of the second network slice.
  • network interface 0 For example, if network slice A is currently accessed, and network interface 0 is configured corresponding to network slice A; if when applying for network slice B, the IP address assigned to the terminal by the network side is the same as the IP address corresponding to network slice A, At this point an IP address conflict occurs. If in some cases, the terminal refuses to access network slice B, and in this example, network interface 1 is configured for network slice B, it can be understood that network interface 0 and network interface 1 are different network interfaces.
  • routing rule 0 is also configured for network slice A
  • routing rule 1 is configured for network slice B.
  • routing rule 0 and routing rule 1 are also different.
  • S102 Receive a first packet sent by the network side, where the first packet includes a network slice identifier, and the network slice identifier corresponds to the first network slice or the second network slice;
  • the network slice identifier should specifically correspond to a certain network slice in at least two network slices in which an IP address conflict occurs. It should be noted that the network slice identifier in this embodiment can only uniquely correspond to one network slice. However, there may be multiple network slice identifiers corresponding to the same network slice. It should be understood that, for a network slice in which no IP address conflict occurs, the first packet sent by the network side may not include the network slice identifier, but normal communication can be achieved according to the normal packet processing flow. This embodiment It is not limited whether the packets of the network slice without IP address conflict must carry the network slice identifier.
  • the network slice identifier includes at least one of the following: a protocol data unit session identifier (Protocol Data Unit session id, PDU session id), an application identifier (Application ID, APP ID), and a network interface suffix.
  • a protocol data unit session identifier Protocol Data Unit session id, PDU session id
  • an application identifier Application ID, APP ID
  • a network interface suffix is, for example, the suffix of the network interface 0 is "0", and the suffix of the network interface 1 is "1”.
  • the network slice identifier can represent which network slice corresponds to the first packet, thereby providing a method other than an IP address to determine to which corresponding network interface the first packet should be distributed. Way. It should be noted that the network slice identifier in the first packet is added by the device on the network side before sending the first packet.
  • the network slice identifier corresponds to a certain network slice currently accessed by the terminal, so the first packet should be distributed to the network interface corresponding to the network slice.
  • the first packet is distributed to network interface 0 corresponding to network slice A.
  • the terminal includes a mapping table between network slice identifiers and network interfaces, and distributing the first packet to the corresponding network interface according to the network slice identifiers includes:
  • the target network interface is queried in the mapping table according to the network slice identifier, and the first packet is distributed to the target network interface.
  • the mapping table may be dynamically maintained according to the actual network slice of the terminal and the access and configuration of the corresponding network interface, and the target network interface is the network interface correctly corresponding to the current first packet.
  • the packet processing method further includes, when sending the second packet to the network side, filling in the network slice identifier in the second packet sent by the terminal to the network side;
  • the first packet refers to the packet sent by the network side to the terminal
  • the second packet refers to the packet sent by the terminal to the network side.
  • the second packet does not carry the above-mentioned network slice identifier when sending the second packet to the network side
  • the second packet can still be delivered to the corresponding network side device normally.
  • the network slice identifier can also be filled in the second packet, which enables the network side device to easily obtain the relevant information of the network slice.
  • the network side device may directly extract the network slice identifier filled in when the terminal sends the second packet to the network side, and directly fill the network slice identifier into the first packet when sending the first packet to the terminal.
  • the network slice identifier is specifically filled in the option field of the IP header of the first packet, and the option field of the IP header can increase the function of the packet and can be used to support measures such as troubleshooting, measurement, and security.
  • the format of the IP packet is illustrated, wherein the option field of the IP header consists of three parts: option code, option length and option data. Please refer to FIG. 3 and FIG. 4 , which illustrate the classification of the option fields and the format of the option fields in the IP header.
  • the network slice identifier is filled into the option data in the option field of the IP header. It can be understood that, whether it is the first packet received by the terminal or the second packet sent by the terminal, the corresponding network slice identifiers can be respectively filled in the option fields of the IP headers of the above two packets.
  • the packet processing method in this embodiment of the present application still allows access to the first network slice with the same IP address applied for for the terminal (that is, the IP address conflict of the network slice occurs), and configures it with the second network slice with the same IP address
  • the network interface with different network interfaces receives the first packet sent by the network side, where the first packet includes a network slice identifier, and distributes the first packet to the corresponding network interface according to the network slice identifier.
  • the embodiment of the present application also provides a method for sending a message.
  • the method is applied to a network side device, and the network side device may be a communication device arranged on the network side. Please refer to FIG. 5 , and the method includes:
  • S201 Fill in a network slice identifier in the first packet sent to the terminal, where the network slice identifier corresponds to the first network slice or the second network slice currently accessed by the terminal; the first network slice in this embodiment corresponds to the second network slice.
  • the slices have the same IP address, and the network slice identifier is filled in the first packet, so that after receiving the first packet, the terminal can confirm to which network interface the first packet should be distributed according to the network slice identifier, Therefore, even when an IP address conflict occurs in the network slice of the terminal, conditions for normal communication and interaction can be provided for the terminal.
  • the network slice identifier may be filled in the first packet sent to the terminal only after a conflict of IP addresses of the network slice occurs at the terminal.
  • the network slice identifier can also be filled in in any case, and the terminal determines whether the network interface to be distributed needs to be determined according to the network slice identifier.
  • the network slice identifier when the network slice identifier is filled in the second packet sent by the terminal, it indicates that the terminal may be in a situation where the IP addresses of the network slices conflict, so the terminal sends the network slice identifier to the terminal.
  • the first packet is also filled with a network slice identifier, and the network slice corresponding to the network slice identifier corresponds to the same network slice as the network slice identifier in the second packet sent by the terminal.
  • a network slice identifier is only Corresponds to a network slice, but a network slice can be identified by multiple network slices. Alternatively, it can be determined by any other method that the terminal may have a conflict of IP addresses of the network slice or directly receives a related request, and then fill in the network slice identifier in the first packet sent to the terminal through this step S201.
  • the network slice identifier filled in the first packet sent to the terminal by the network side includes at least one of the following: a protocol data unit session identifier (Protocol Data Unit session id, PDU session id), an application ID (Application ID, APP ID), network interface suffix.
  • the network slice identifier is specifically populated in the options field of the IP header. In this embodiment, the network slice identifier is filled into the option data in the option field of the IP header.
  • the first packet is sent to the terminal, and the sending process of the first packet may be in any manner.
  • the packet sending method of the embodiment of the present application is applied to a network side device.
  • the terminal can confirm the identification according to the network slice identifier. It can determine which network interface the first packet should be distributed to. Therefore, in some implementation processes, including but not limited to, even when an IP address conflict occurs in the network slice of the terminal, conditions for normal communication and interaction can be provided for the terminal. The effect is beneficial to avoid the problem that the terminal cannot normally perform network communication after the IP address of the network slice conflicts, and is beneficial to improve the user experience.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the terminal includes a slice management module 11 , a connection management module 12 , a monitoring module 13 , an IP packet filling module 14 , a sending module 15 , and an IP packet parsing module 16 .
  • the slice management module 11 is configured to apply for, maintain, and release network slices.
  • the connection management module 12 is configured to configure the network interface, and in this embodiment, other configurations such as routing rules can also be configured.
  • the monitoring module 13 is configured to monitor whether there is a second packet sent to the network side, and whether the first packet sent from the network side is received.
  • the IP packet filling module 14 is configured to fill in the network slice identifier in the option field of the IP header of the second packet.
  • the sending module 15 is configured to send the second packet filled with the network slice identifier to the network side.
  • the IP packet parsing module 16 is configured to parse out the network slice identifier from the option field of the IP header of the first packet, and distribute the first packet to the correct network interface according to the network slice identifier.
  • the process of processing the first packet by the terminal in this example includes:
  • the slice management module 11 applies to the network side for network slice A, and the network side allocates a corresponding IP address to the terminal;
  • the slice management module 11 matches the corresponding S-NSSAI (Single Network Slice) in the URSP (UE Route Selection Policy, UE Route Selection Policy) rule list according to the DNN (Data Network Name, data network name). Selection Assistance Information, single network slice selection auxiliary information), and then initiate a PDU (Protocol Data Unit, protocol data unit) session creation request to the network side, and the S-NSSAI is carried in the signaling.
  • the network side replies to accept the establishment of the PDU session, and completes the process of establishing the PDU session.
  • connection management module 12 configures the network interface rmnet_data0 and the routing rule route0;
  • the network interface rmnet_data0 and the routing rule route0 correspond to the network slice A.
  • the slice management module 11 applies to the network side for the network slice B, and the network side allocates the same IP address to the terminal as in step S301;
  • connection management module 12 configures the network interface rmnet_data1 and the routing rule route1;
  • the network interface rmnet_data1 and the routing rule route1 correspond to the network slice B.
  • step S303 when it is found in step S303 that there is a network slice assigned the same IP address, it will not access network slice B, but in this example, the terminal still accesses the network and configures network interfaces and routing rules for it. It can be understood that the network interface rmnet_data1 and the routing rule route1 configured in this step are respectively different from the network interface rmnet_data0 and the routing rule route0 in step S302.
  • the monitoring module 13 monitors whether there is a first message from the network side, and if so, executes step S306, otherwise executes step S307;
  • the IP packet parsing module 16 parses the network slice identifier from the first packet, and distributes the first packet to the correct network interface according to the network slice identifier;
  • the IP packet parsing module 16 maintains a mapping table of network slice identifiers and network interfaces locally in the terminal, and after parsing the network slice identifiers, distributes the first packet to the correct network interface according to the mapping table.
  • a flow of the second packet sent by the terminal to the network side is illustrated. It should be noted that the following steps should be performed after the terminal has applied for network slicing, that is, for example, after the above-mentioned steps S301, S302, S303 and S304.
  • step S405 the monitoring module 13 monitors whether there is a second message sent to the network side, and if so, executes step S406, otherwise executes step S408;
  • the IP packet filling module 14 fills in the network slice identifier in the option field of the IP header of the second packet;
  • the sending module 15 sends the second message filled with the network slice identifier to the network side;
  • the manner of sending the second packet to the network side may be any manner including the existing manner.
  • this embodiment also shows a network-side device.
  • the network-side device may be a communication device disposed on the network side.
  • the steps of the packet sending method in the embodiment of the present application may be performed by a network-side device in the network-side device.
  • One or more modules execute.
  • the network-side device includes a monitoring module 23 , an IP packet filling module 24 , and a sending module 25 .
  • the monitoring module 23 in the network-side device is configured to monitor whether there is a first packet sent to the terminal.
  • the IP packet filling module 24 is configured to fill in the network slice identifier in the option field of the IP header of the first packet.
  • the sending module 25 is configured to send the filled first message to the terminal.
  • the process of sending packets by the network-side device in this example includes:
  • the monitoring module 23 monitors whether there is a first message sent to the terminal, if so, executes step S502, otherwise executes step S504;
  • the IP packet filling module 24 fills in the network slice identifier in the first packet
  • the sending module 25 sends the first message filled with the network slice identifier to the terminal;
  • module division manner of the terminal or the network side device shown in the above example of this embodiment may be arbitrary.
  • the packet processing method of the embodiment of the present application when the IP addresses allocated by the network slice conflict, the corresponding network interface can still be found according to the network slice identifier in the first packet sent by the network side device, thus ensuring that the network communication to improve user experience.
  • the network slice identifier is filled in the first packet sent to the terminal, so that the terminal can obtain valid information other than the IP address to confirm the outgoing network interface, and provide normal communication interaction for the terminal.
  • This embodiment also provides a terminal, as shown in FIG. 11 , which includes a processor 111, a memory 112, and a communication bus 113, wherein:
  • the communication bus 113 is used to realize the connection communication between the processor 111 and the memory 112;
  • the processor 111 is configured to execute one or more computer programs stored in the memory 112 to implement at least one step in the packet processing methods in the first and second embodiments above.
  • This embodiment also provides a communication device, the communication device is set on the network side, as shown in FIG. 12 , which includes a processor 121, a memory 122 and a communication bus 123, wherein:
  • the communication bus 123 is used to realize the connection communication between the processor 121 and the memory 122;
  • the processor 121 is configured to execute one or more computer programs stored in the memory 122 to implement at least one step in the method for sending a message in the first embodiment and the second embodiment.
  • the present embodiments also provide a computer storage medium comprising volatile volatile memory implemented in any method or technology for storage of information such as computer readable instructions, data structures, computer program modules or other data or non-volatile, removable or non-removable media.
  • Computer storage media include but are not limited to RAM (Random Access Memory, random access memory), ROM (Read-Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read only memory), Flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory), Digital Versatile Disc (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
  • RAM Random Access Memory
  • ROM Read-Only Memory
  • EEPROM Electrically Erasable Programmable read only memory
  • Flash memory or other memory technology
  • CD-ROM Compact Disc Read-Only Memory
  • the computer storage medium in this embodiment may be used to store one or more computer programs, and the one or more computer programs stored therein may be executed by a processor to implement the packet processing methods in the first and second embodiments above or At least one step of the message sending method.
  • the IP address conflict including but not limited to the occurrence of network slices in the terminal can be implemented according to Network slicing identifies the technical effect of completing normal communication and improves user experience.
  • the functional modules/units in the system, and the device can be implemented as software (which can be implemented by computer program codes executable by a computing device). ), firmware, hardware, and their appropriate combination.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively.
  • Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • communication media typically embodies computer readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery, as is well known to those of ordinary skill in the art medium. Therefore, the present application is not limited to any particular combination of hardware and software.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne des procédés de traitement et d'envoi de paquets, ainsi qu'un terminal, un dispositif de communication et un support de stockage informatique. Lorsqu'une adresse de protocole Internet (désigné ci-après IP) d'une première tranche de réseau appliquée par un terminal est identique à une adresse IP d'une seconde tranche de réseau déjà accessible, accéder à la première tranche de réseau et configurer, pour la première tranche de réseau, une interface réseau différente d'une interface réseau de la seconde tranche de réseau (S101) ; recevoir un premier paquet envoyé par un côté réseau, le premier paquet comprenant un identifiant de tranche de réseau, et l'identifiant de tranche de réseau correspondant à la première tranche de réseau ou à la seconde tranche de réseau à laquelle accède actuellement le terminal (S102) ; et distribuer le premier paquet à l'interface réseau configurée pour la tranche de réseau correspondante selon l'identifiant de tranche de réseau (S103).
PCT/CN2021/127537 2020-12-07 2021-10-29 Procédés de traitement et d'envoi de paquets, terminal, dispositif de communication et support de stockage informatique WO2022121552A1 (fr)

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CN202011439030.4 2020-12-07

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108833181A (zh) * 2018-06-25 2018-11-16 北京邮电大学 Ng-cn网络切片系统及网络切片选择方法
WO2020043275A1 (fr) * 2018-08-28 2020-03-05 Huawei Technologies Co., Ltd. Partage inter-tranches dans des réseaux centraux 5g
CN111698725A (zh) * 2020-06-23 2020-09-22 腾讯科技（深圳）有限公司 动态确定网络切片的方法及电子设备
US20200366607A1 (en) * 2019-05-14 2020-11-19 Vmware, Inc. Slice-based routing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108833181A (zh) * 2018-06-25 2018-11-16 北京邮电大学 Ng-cn网络切片系统及网络切片选择方法
WO2020043275A1 (fr) * 2018-08-28 2020-03-05 Huawei Technologies Co., Ltd. Partage inter-tranches dans des réseaux centraux 5g
US20200366607A1 (en) * 2019-05-14 2020-11-19 Vmware, Inc. Slice-based routing
CN111698725A (zh) * 2020-06-23 2020-09-22 腾讯科技（深圳）有限公司 动态确定网络切片的方法及电子设备

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