WO2023163571A1 - Dispositif de prise en charge de tranche de réseau et procédé de prise en charge associé - Google Patents

Dispositif de prise en charge de tranche de réseau et procédé de prise en charge associé Download PDF

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Publication number
WO2023163571A1
WO2023163571A1 PCT/KR2023/002805 KR2023002805W WO2023163571A1 WO 2023163571 A1 WO2023163571 A1 WO 2023163571A1 KR 2023002805 W KR2023002805 W KR 2023002805W WO 2023163571 A1 WO2023163571 A1 WO 2023163571A1
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WO
WIPO (PCT)
Prior art keywords
network slice
network
slice
interface
virtual
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PCT/KR2023/002805
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English (en)
Korean (ko)
Inventor
유동호
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주식회사 넷큐브
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Publication of WO2023163571A1 publication Critical patent/WO2023163571A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • 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
    • H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • 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
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present invention relates to an apparatus for supporting a network slice in a 5th generation mobile communication (5G) system.
  • 5G 5th generation mobile communication
  • a network slice support device and method capable of running a network slice dedicated app without installing separate agent software.
  • the 5th generation mobile communication service which is currently being standardized, is undergoing technological developments such as significantly faster speed and ultra-low latency than the existing 4th generation LTE.
  • the 5th generation mobile communication system introduces a virtualized network architecture to accommodate these vertical applications, and through this, a network slice, a virtual closed network that meets high network conditions such as high resolution and high speed, is created for each vertical application service. can be assigned to each.
  • 5G applications can be operated based on a virtual dedicated mobile communication network for user terminals while ensuring the performance required for each application through end-to-end traffic separation and resource separation.
  • 5G is used as a mobile communication network to provide services through a network slice that guarantees a specific speed and quality of service, or to implement a network slice such as internal WIFI of a specific institution using a closed network with enhanced security. possible.
  • network slice agent software In order to use these network slicing-based applications, network slice agent software must be loaded and run in a terminal with 5G capabilities.
  • the network slice agent software should be supported at the OS level of the terminal, but if the OS manufacturer does not support it, it is difficult to install the network slice agent software, so there is a problem that the network slice dedicated app cannot be operated. .
  • a technical problem to be achieved by the present invention is to provide a device and method for supporting a network slice service with high compatibility without support from an OS manufacturer and installation of network slice agent software in a network slice supporting device.
  • the present invention provides a network supporting device and method capable of dynamically responding to updated and added network slice services.
  • an apparatus for supporting a network slice of a user terminal provides a destination for each slice of a network slice dedicated app installed in the user terminal based on the network slice information provided from the 5G core network.
  • a virtual network interface that creates a PDU session according to an IP address
  • a slice connection management unit configured to configure routing and PDU sessions of the virtual network interface for each slice using the network slice information
  • a network manager that configures routing of virtual network interfaces to respective data networks (DNs) for mobile edge computing
  • DNs data networks
  • the network slice support device may be implemented by being integrated with a 5G modem device.
  • the network slice support device may be connected to the user terminal through a PCI interface.
  • the network slice support device may be connected to the user terminal through at least one of a USB interface, a wired LAN, and a wireless LAN.
  • the virtual network interface performs a function of a virtual network adapter for each network slice, and may perform routing of a packet of a network slice dedicated app to a corresponding network slice.
  • the network slice agent periodically or aperiodically receives network slice information used by a network slice dedicated app from a User Equipment Route Selection Policy (URSP), and the network slice information is information about a PDU session of a network slice can include
  • URSP User Equipment Route Selection Policy
  • packets delivered through the PDU session may be delivered by a User Plane Function (UPF) included in each data network.
  • UPF User Plane Function
  • a method for supporting a network slice of a user terminal using a network slice supporting apparatus implemented by being integrated with a 5G modem includes receiving network slice information from a User Equipment Route Selection Policy (URSP) of a 5G core network. ; Identifying a slice service corresponding to the driven network slice-only app; selecting a virtual interface corresponding to the identified network slice; Routing packets of the network slice dedicated app using the selected virtual interface; and establishing a PDU session for the network slice service.
  • URSP User Equipment Route Selection Policy
  • the network slice service may be identified based on the destination IP address.
  • the network slice information received from the URSP may be received periodically or aperiodically and continuously updated.
  • a user terminal can easily use a network slice by internally or externally connecting a network slice support device.
  • a user terminal can receive a network slicing function and a 5G mobile communication function from one device. Therefore, it is possible to use the network slice service by accessing the 5G specialized network as it is using the existing terminal in use.
  • a user terminal equipped with a network slice support device can be used as a dedicated terminal for a network slice for a 5G specialized network.
  • FIG. 1 is a diagram illustrating an operation outline of an apparatus for supporting a network slice according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the configuration of a network slice support apparatus according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating that a network slice supporting device according to an embodiment of the present invention establishes a PDU session.
  • FIG. 4 is a signal flow diagram illustrating the operation of a method for supporting a network slice according to an embodiment of the present invention.
  • a “module” includes a unit composed of hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit.
  • a module can be an integral part or a minimal unit or part thereof that performs one or more functions.
  • the module may be composed of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • TS23.501 of 3GPP (3rd Generation Partnership Project), which establishes the 5th generation mobile communication system standards, describes network slicing to support vertical applications (3gpp TS23.501 chapter 5.15) and each vertical application system has its own network It presents a technical standard (3gpp TS23.501 chapter 5.15.10) that can manage subscribers accessing slice through its own authentication system.
  • a network slice is a network specialized in provisioning that satisfies a specific quality of service.
  • FIG. 1 is a diagram illustrating an operation outline of an apparatus for supporting a network slice according to an embodiment of the present invention.
  • the user terminal 10 is a device for using the network slice service, and includes devices such as a smart phone, tablet PC, laptop PC, and desktop PC, and can communicate with the network slice support device 100 to be described later through a communication interface. Including any device with
  • the user terminal 10 may use the network slice by installing the network slice dedicated app 11 .
  • the network slice dedicated app 11 may be a plurality, and each may be used for a different dedicated network slice service.
  • the network slice support device 100 When the network slice support device 100 attempts connection and communication through the destination IP address of the service to be accessed by the network slice dedicated app 11 in the user terminal 10, the network slice dedicated virtual virtual network slice matching the corresponding destination IP address.
  • a PDU session is established through a corresponding network slice through a network interface.
  • the network slice support device 100 provides a dedicated virtual network interface that exclusively processes each network slice and is integrally implemented with a 5G modem.
  • the network slice support device 100 may be implemented in the form of a built-in 5G modem that communicates through the PCI interface of the user terminal 10 or in the form of a dongle that communicates through the USB interface.
  • the network slice support device 100 in the form of a 5G modem may be connected to one or more user terminals through a wired LAN or a wireless LAN in the form of a router.
  • the mobile communication network 20 is a mobile communication network conforming to the 5G communication standard.
  • the 5G mobile communication network 20 may include the base station 21 and the AUSF 22, PCF 23, SMF 24, AMF 25, and UPF 26 in units of network functions.
  • AMF Access and Mobility Function
  • AUSF Authentication Server Function 22 performs user terminal authentication using subscriber authentication data.
  • a Session Management Function (SMF) 24 manages session maintenance/release for a plurality of connection sessions, and a Policy Control Function (PCF) 23 determines policies related to mobility and session management.
  • SMF Session Management Function
  • PCF Policy Control Function
  • a user plane function (UPF) 26 transfers a packet transmitted from a user terminal to a data network (DN).
  • the UPF 26 may transmit packets to a plurality of data networks, or may be provided in each data network to transmit packets.
  • a User Equipment Route Selection Policy (URSP) 27 may provide the network slice supporting device 100 with information about a PDU session of a network slice that a network slice-dedicated app should use. Information on the PDU session of the network slice provided by the URSP 27 is periodically provided so that the network slice supporting device 100 can be continuously updated.
  • URSP User Equipment Route Selection Policy
  • the network slice service system 300 may be any service system providing a service satisfying a specific quality of service.
  • a streaming service providing multimedia content a service dedicated to autonomous driving, a smart factory IoT service, and a virtual internal closed network service implemented in a 5G mobile communication network may be applicable.
  • FIG. 2 is a block diagram showing an apparatus 100 for supporting a network slice according to an embodiment of the present invention.
  • the network slice support device 100 may be integrated by having a configuration with a 5G modem supporting 5G telecommunications (not shown).
  • the network slice support device 100 includes a virtual network interface 110 , a slice connection management unit 120 , a network manager 130 , and a network slice agent 140 .
  • the virtual network interface 110 may be created based on network slice information provided from the 5G core network through the network slice agent 140.
  • the virtual network interface 100 performs routing for each destination of each data network using the network slice information.
  • the virtual network interface 110 performs a function of a kind of virtual network adapter that creates and maintains a PDU session according to a destination IP address.
  • the network slice dedicated apps (A1, A2, A3) create a PDU session according to the destination IP address for each slice to use the network slice service.
  • the virtual network 110 creates slice virtual interfaces V1 , V2 , and V3 for each slice and performs routing to an appropriate network slice service.
  • the slice connection management unit 120 configures routing and PDU sessions of the virtual network interface 110 for each slice by using the network slice information.
  • the network manager 130 configures routing of each data network DN for mobile edge computing of each slice.
  • the network slice agent 130 may initially access the 5G mobile communication network and download authentication and network slice information.
  • Network slice authentication and initial network slice information may be provided from a network slice onboarding system (NSOS) or a network slicing selection function (NSSF).
  • NSOS network slice onboarding system
  • NSSF network slicing selection function
  • the network slice agent 130 may periodically/non-periodically receive information about a PDU session of a network slice to be used by a network slice dedicated app from a User Equipment Route Selection Policy (URSP) 27 .
  • URSP User Equipment Route Selection Policy
  • the network slice support device 100 is interconnected with the configuration of the 5G modem to provide a virtual interface suitable for the slice-only app, thereby maintaining and maintaining a PDU session by accessing the network slice service without a separate operation.
  • a session related to a communication request to a destination IP address unrelated to the network slice service can be established using general-purpose 5G mobile communication.
  • FIG. 3 is a diagram illustrating that a network slice supporting device according to an embodiment of the present invention establishes a PDU session.
  • the user terminal 10 includes network slice-only apps A1 to An, and is connected to the slice support device 100 as an internal or external interface.
  • An internal interface such as a PCI interface may be used as the interface, and in this case, it may be installed in the user terminal 10 in the form of a 5G modem built into the network slice support device 100.
  • the interface is a USB interface, and the network slice support device 100 may be implemented in a dongle form.
  • the network slice support device 100 in the form of a 5G modem may be connected to one or more user terminals through a wired LAN or a wireless LAN in the form of a router.
  • the virtual network interface 110 of the network slice support device 100 forms slice virtual interfaces (V1 to Vn) for each network slice-only app (A1 to An) and connects the 5G mobile communication network 20 through the 5G air interface. connected to
  • the 5G mobile communication network 20 processes each network slice through the slice processing instance of the base station of the access network, establishes a plurality of PDU sessions using AMF and SMF UPF of the core network, and delivers the packet to the data network .
  • the created PDU session creates a tunnel for a service dedicated to a network slice, and the PDU session supports distribution of data of a virtual private network based on a network slice.
  • a network slice can be created by a virtual private network that provides 8K high-quality media streaming, and high-quality media streaming with a corresponding quality can be provided.
  • a dedicated network capable of accessing an internal closed network of an institution or company is created, and it is also possible to create a PDU session having access rights to a specific folder of the closed network.
  • FIG. 4 is a signal flow diagram illustrating the operation of a method for supporting a network slice according to an embodiment of the present invention.
  • the network slice support device 100 receives network slice information from the URSP 27.
  • the network slice information includes both policy information of a user terminal using the network slice service and information necessary for establishing a slice and PDU session.
  • the network slice information is provided periodically/aperiodically even after being initially provided so that the network support device 100 can update information for establishing a new network slice and PDU session.
  • the network slice information is received by the network slice agent of the network slice support device 100, and then slice virtual interface selection is supported.
  • the slice service is identified in step S110.
  • the slice service can be identified through a destination IP that can be identified by a virtual network interface.
  • step S120 the network slice support device selects a virtual interface for the identified network slice using the virtual network interface.
  • step S130 packets are routed from the corresponding network slice dedicated app using the selected virtual interface.
  • step S150 a PDU session for a network slice service through a 5G mobile communication network is established.
  • the specific operation of establishing a PDU session is to establish a plurality of PDU sessions using a slice processing instance of an access network and AMF, SMF UPF of a core network, and transmit packets to a data network.
  • the created PDU session creates a tunnel for a service dedicated to a network slice, and the PDU session supports distribution of data of a virtual private network based on a network slice.
  • the network slice support device 100 is implemented integrally with a 5G modem, and it is possible to support a 5G network slice service through a combination through an interface without OS support.
  • a computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.
  • Program instructions recorded on a computer-readable recording medium may be specially designed and configured for the embodiment of the present invention, or may be known and usable to those skilled in the art in the field of computer software.
  • Computer-readable recording media include magnetic recording media such as hard disks, floppy disks and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, ROMs, RAMs, and flash memories.
  • Program instructions include machine language codes generated by a compiler and high-level language codes that can be executed on a computer using an interpreter.
  • the hardware may be configured to act as one or more software modules to process the method according to the present invention and vice versa.
  • the method according to an embodiment of the present invention may be executed in an electronic device in the form of program instructions.
  • Electronic devices include portable communication devices such as smart phones and smart pads, computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, and home appliances.
  • a method according to an embodiment of the present invention may be provided by being included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product may be distributed in the form of a machine-readable recording medium or online through an application store. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a storage medium such as a manufacturer's server, an application store server, or a relay server's memory.
  • Each component for example, a module or program, according to an embodiment of the present invention may be composed of one or more sub-components, and some of these sub-components may be omitted or other sub-components may be added.
  • Some components may be integrated into one entity and perform the same or similar functions performed by each corresponding component prior to integration. Operations performed by modules, programs, or other components according to embodiments of the present invention are executed sequentially, in parallel, iteratively, or heuristically, or at least some operations are executed in a different order, are omitted, or other operations are added. It can be.

Abstract

Un dispositif de prise en charge de tranche de réseau d'un terminal utilisateur selon la présente invention comprend : une interface de réseau virtuel pour générer une session PDU selon une adresse IP de destination pour chaque tranche d'une application dédiée à une tranche de réseau installée dans le terminal utilisateur, sur la base d'informations de tranche de réseau fournies par un réseau central 5G ; une unité de gestion de connexion de tranche pour configurer une session PDU et un routage de l'interface de réseau virtuel pour chaque tranche à l'aide des informations de tranche de réseau ; un gestionnaire de réseau pour configurer chaque routage de réseau de données (DN) pour l'interface de réseau virtuel, pour un calcul de bord mobile ; et un agent de tranche de réseau pour recevoir de manière périodique/de manière apériodique, en provenance du réseau central 5G, les informations de tranche de réseau qui doivent être utilisées par l'application dédiée à une tranche de réseau, et mettre à jour celles-ci.
PCT/KR2023/002805 2022-02-28 2023-02-28 Dispositif de prise en charge de tranche de réseau et procédé de prise en charge associé WO2023163571A1 (fr)

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KR10-2022-0025958 2022-02-28

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Citations (4)

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Publication number Priority date Publication date Assignee Title
KR20200118204A (ko) * 2018-02-13 2020-10-14 후아웨이 테크놀러지 컴퍼니 리미티드 데이터 루트 선택 방법 및 장치
WO2021233148A1 (fr) * 2020-05-21 2021-11-25 华为技术有限公司 Procédé, dispositif et système d'accès à une tranche de réseau
WO2021238554A1 (fr) * 2020-05-29 2021-12-02 中兴通讯股份有限公司 Procédé d'accès à une tranche de réseau, dispositif électronique et support de stockage
KR20210151744A (ko) * 2017-06-19 2021-12-14 삼성전자주식회사 네트워크 가상화 및 세션 관리 방법 및 장치

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KR20210151744A (ko) * 2017-06-19 2021-12-14 삼성전자주식회사 네트워크 가상화 및 세션 관리 방법 및 장치
KR20200118204A (ko) * 2018-02-13 2020-10-14 후아웨이 테크놀러지 컴퍼니 리미티드 데이터 루트 선택 방법 및 장치
WO2021233148A1 (fr) * 2020-05-21 2021-11-25 华为技术有限公司 Procédé, dispositif et système d'accès à une tranche de réseau
WO2021238554A1 (fr) * 2020-05-29 2021-12-02 中兴通讯股份有限公司 Procédé d'accès à une tranche de réseau, dispositif électronique et support de stockage

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"3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; System architecture for the 5G System (5GS); Stage 2 (Release 17)", 3GPP STANDARD; 3GPP TS 23.501, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. V17.3.0, 23 December 2021 (2021-12-23), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 559, XP052083263 *

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