WO2021235769A1 - Procédé et dispositif de prise en charge de communication déterministe pour terminal dans un réseau de communication mobile - Google Patents

Procédé et dispositif de prise en charge de communication déterministe pour terminal dans un réseau de communication mobile Download PDF

Info

Publication number
WO2021235769A1
WO2021235769A1 PCT/KR2021/005991 KR2021005991W WO2021235769A1 WO 2021235769 A1 WO2021235769 A1 WO 2021235769A1 KR 2021005991 W KR2021005991 W KR 2021005991W WO 2021235769 A1 WO2021235769 A1 WO 2021235769A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
network
smf
request
entity
Prior art date
Application number
PCT/KR2021/005991
Other languages
English (en)
Korean (ko)
Inventor
한윤선
문상준
정상수
Original Assignee
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자 주식회사 filed Critical 삼성전자 주식회사
Publication of WO2021235769A1 publication Critical patent/WO2021235769A1/fr

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present disclosure relates to a method of providing deterministic communication in a mobile communication system.
  • Deterministic communication is a communication method that guarantees delivery of network traffic to be transmitted and received by the terminal within a specific time limit. It relates to a method of delivering factors to support such communication, and an apparatus and method for configuring a network to deliver traffic within a specific time range using these factors.
  • the 5G communication system or the pre-5G communication system is called a 4G network after (Beyond 4G Network) communication system or an LTE (Long Term Evolution) system after (Post LTE) system.
  • 5G communication systems are being considered for implementation in very high frequency (mmWave) bands (eg, 60 gigabytes (60 GHz) bands).
  • mmWave very high frequency
  • FD-MIMO Full Dimensional MIMO
  • array antenna, analog beam-forming, and large scale antenna technologies are being discussed.
  • an evolved small cell in the 5G communication system, an evolved small cell, an advanced small cell, a cloud radio access network (cloud RAN), an ultra-dense network (ultra-dense network) , Device to Device communication (D2D), wireless backhaul, moving network, cooperative communication, Coordinated Multi-Points (CoMP), and reception interference cancellation Technology development is underway.
  • cloud RAN cloud radio access network
  • ultra-dense network ultra-dense network
  • D2D Device to Device communication
  • wireless backhaul moving network
  • cooperative communication Coordinated Multi-Points (CoMP)
  • CoMP Coordinated Multi-Points
  • FQAM Hybrid Frequency Shift Keying and Quadrature Amplitude Modulation
  • SWSC Sliding Window Superposition Coding
  • ACM Advanced Coding Modulation
  • FBMC Filter Bank Multi Carrier
  • NOMA Non Orthogonal Multiple Access
  • SCMA Sparse Code Multiple Access
  • the 5G system is considering support for various services compared to the existing 4G system.
  • the most representative services are enhanced mobile broadband (eMBB), ultra-reliable and low latency communication (URLLC), and massive device-to-device communication service (mMTC). machine type communication), next-generation broadcast service (eMBMS: evolved multimedia broadcast/multicast Service), and the like.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable and low latency communication
  • mMTC massive device-to-device communication service
  • eMBMS evolved multimedia broadcast/multicast Service
  • the system providing the URLLC service may be referred to as a URLLC system
  • the system providing the eMBB service may be referred to as an eMBB system.
  • service and system may be used interchangeably.
  • the URLLC service is a service that is newly considered in the 5G system, unlike the existing 4G system, and has ultra-high reliability (eg, about 10 -5 packet error rate) and low latency (eg, compared to other services). about 0.5 msec) requirement to be satisfied.
  • the URLLC service may need to apply a shorter transmission time interval (TTI) than the eMBB service, and various operation methods are being considered using this.
  • TTI transmission time interval
  • IoT Internet of Things
  • IoE Internet of Everything
  • M2M Machine Type Communication
  • MTC Machine Type Communication
  • IoT an intelligent IT (Internet Technology) service that collects and analyzes data generated from connected objects and creates new values in human life can be provided.
  • IoT is the field of smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliance, advanced medical service, etc. can be applied to
  • 5G communication such as sensor network, machine to machine (M2M), and machine type communication (MTC) is being implemented by techniques such as beamforming, MIMO, and array antenna.
  • M2M machine to machine
  • MTC machine type communication
  • cloud RAN cloud radio access network
  • Various embodiments of the present disclosure include a method of transmitting network traffic within a specific time limit in a situation in which a mobile communication terminal communicates with a server or other terminal located in an external network.
  • traffic generated in the network is delivered in the best effort manner within the limits allowed by resources. In such a structure, it cannot be guaranteed that the forwarded traffic will be delivered within a specific time.
  • the QoS control method provided by the mobile communication network is used, only the guaranteed traffic used by the specific traffic and the maximum delivery time of a single packet or data of a specific size are guaranteed.
  • the network can solve this problem by recognizing the type of traffic and delay related requirements, and scheduling network resources to deliver it.
  • the present disclosure includes a method and apparatus for recognizing such a traffic type and delay related requirements in a network, and a method and apparatus for configuring a network so that traffic transmitted and received by a terminal can be delivered within a specific range time.
  • the present invention for solving the above problems is a method of a policy control function (PCF) entity in a wireless communication system, a protocol data unit (PDU) session establishment request from a terminal Receiving, from the received session management function (SMF) entity, a first message including a deterministic communication (DC) request for transmitting and receiving time sensitive traffic, the DC request to the terminal Determining whether to accept, if it is determined to accept the DC request for the terminal, determining support information for supporting the vision sensitive traffic, and transmitting a second message including the determined support information to the SMF entity may include the step of
  • a policy control function (PCF) entity is a session management function that receives a protocol data unit (PDU) session establishment request from a transceiver and a terminal.
  • SMF controlling the transceiver to receive a first message including a deterministic communication (DC) request for transmitting and receiving time sensitive traffic from an entity, and determining whether to accept the DC request to the terminal,
  • DC deterministic communication
  • a control unit for controlling the transceiver to determine support information for supporting the visual sensitive traffic, and to transmit a second message including the determined support information to the SMF entity may include
  • the mobile communication network should analyze the purpose and service requirements of each terminal to maintain an optimized configuration.
  • the characteristics of each terminal must be identified, and the network must be operated to continuously provide the desired level of services at the minimum cost through optimization and automation of configuration and management.
  • the present invention includes a method for transmitting network traffic among various services used through a mobile communication system, allowing time-sensitive traffic to be delivered within a time range required by the service.
  • time-sensitive traffic In particular, for professional audio, video, and image-related services, time-related requirements are strictly required for traffic delivery.
  • the existing 5G mobile communication system it is composed of devices such as bridges that support time sensitive networks such as 802.1Q and 802.1ACC described in IEEE, and TSN AF (Time Sensitive Network Application Function), which is a special application server. ), time synchronization and deterministic communication were possible only when the related function was supported.
  • a method and apparatus for enabling support of deterministic communication (DC) for supporting transmission of time-sensitive data are included. can do. Through this, traffic can be transferred between terminals or between a terminal and an external server within a specific time without special external devices, thereby satisfying related service requirements at low cost without distributing special network equipment to the outside.
  • DC deterministic communication
  • FIG. 1 shows the configuration of a mobile communication system and an entity located outside the network for the disclosure of the present invention.
  • Figure 2 shows the configuration of a network entity for the reception of visual sensitive traffic for the purpose of the disclosure of the present invention.
  • PCF policy control function
  • FIG. 4 illustrates a procedure in which the PCF accommodates visual sensitive traffic by using network analysis information for missing or erroneous factors based on subscriber information according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a method of supporting visually sensitive traffic by using factors transmitted by AF and network analysis information according to an embodiment of the present invention.
  • FIG. 6 is a diagram illustrating a method in which the SMF transmits information of visual sensitive traffic to a base station by using network analysis information to efficiently manage resources according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating a structure of network entities according to an embodiment of the present invention.
  • each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions.
  • These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions.
  • These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory.
  • the instructions stored in the flowchart block(s) produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s).
  • the computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for performing the functions described in the flowchart block(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in blocks to occur out of order. For example, two blocks shown one after another may in fact be performed substantially simultaneously, or it is possible that the blocks are sometimes performed in the reverse order according to the corresponding function.
  • ' ⁇ unit' used in this embodiment means software or hardware components such as FPGA or ASIC, and ' ⁇ unit' performs certain roles.
  • ' ⁇ part' is not limited to software or hardware.
  • ' ⁇ ' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors.
  • ' ⁇ ' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components and ' ⁇ units' may be combined into a smaller number of components and ' ⁇ units' or further separated into additional components and ' ⁇ units'.
  • components and ' ⁇ units' may be implemented to play one or more CPUs in a device or secure multimedia card.
  • ' ⁇ unit' may include one or more processors.
  • the radio access network New RAN NR
  • the core network packet core 5G System, or 5G Core Network, or NG Core: Next Generation Core
  • 5G System or 5G Core Network
  • NG Core Next Generation Core
  • 3GPP 3rd Generation Partnership Project Long Term Evolution
  • 5G Long Term Evolution
  • NR Long Term Evolution
  • LTE Long Term Evolution
  • a term for identifying an access node used in the following description, a term for a network entity (network entity), a term for messages, a term for an interface between network entities, and various identification information
  • a term for identifying an access node used in the following description, a term for a network entity (network entity), a term for messages, a term for an interface between network entities, and various identification information
  • the present disclosure relates to a method for supporting the operation of an unmanned aerial vehicle in a mobile communication system conforming to the 3GPP standard, and the devices or objects described below may interact to achieve the object of the invention.
  • FIG. 1 shows the configuration of a mobile communication system and an entity located outside the network for the disclosure of the present invention.
  • FIG. 1 A configuration diagram of interaction using a service based interface of each element is shown in FIG. 1 .
  • AMF (access and mobility management function) 120 is a device for managing access and mobility of a terminal (terminal, user equipment (UE)) 110, and the terminal 110 is a base station (RAN) radio access network), a base station, an evolved node B (eNB), and a next generation node B (gNB) 115 through the terminal-to-core network endpoint that connects to other devices in the core network.
  • Functions provided by the AMF 120 include, for example, registration of the terminal 110, connection, reachability, mobility management, access confirmation/authentication, and mobility event generation. may be included.
  • the SMF (session management function) 130 performs a PDU (protocol data unit) session management function of the terminal 110 .
  • the SMF 130 is a session management function through establishment, modification, and release of a session and maintaining a tunnel between a user plane function (UPF) 125 and a data network (DN) 135 required for this, the terminal 110 ) IP (internet protocol) address allocation and management function, ARP (address resolution protocol) proxy function, user plane selection and control, traffic processing control in UPF 125, charging data collection control, etc. can do.
  • IP internet protocol
  • ARP address resolution protocol
  • the policy control function (PCF) 140 determines and provides policies for access/mobility and session management applied by the AMF 120 and the SMF 130 .
  • the PCF 140 may manage the behavior of the entire network, and may provide policies to be implemented to network functions (NFs) constituting the control plane.
  • the PCF 140 may access a unified data repository (UDR) to access information related to policy decision.
  • UDR unified data repository
  • the network exposure function (NEF) 160 is responsible for transmitting or receiving events occurring in the mobile communication network and supporting functions (capabilities) to the outside.
  • the NEF 160 performs functions such as a function of securely provisioning information of an external application to the core network, conversion of internal/external information, and redistribution after storing a function received from another NF in the UDR.
  • the unified data management (UDM) 155 and the unified data repository (UDR) are independent network functions, but in this embodiment, their functions and roles are similarly used and described at the same time.
  • UDM 155 for example, generation of AKA authentication information for 3GPP security, processing of a user identifier (User ID), reverse concealment of a secured user identifier (Subscriber Concealed ID, SUPI), management of a list of NFs currently supporting the UE , subscriber information (subscription) management, short message (SMS) management, and the like.
  • the UDR may, for example, perform a function of storing and providing subscriber information managed by the UDM 155 , structured data for exposure, and application data related to the NEF 160 or service.
  • a user plane function (UPF) 125 serves to process actual user data, and delivers packets generated by the terminal 110 to an external data network or transmits data introduced from an external data network to the terminal 110 It handles the packet so that it can be delivered.
  • the main functions provided by the UPF 125 include, for example, performing an anchor role between radio access technologies, providing connectivity with PDU sessions and external data networks, packet routing and forwarding, packet inspection, Functions such as user plane policy application, traffic usage report generation, buffering, etc. may be included.
  • the network data analytics function (NWDAF) 150 collects events or information occurring within the network, and uses an analysis tool or a tool such as machine learning to perform statistics, prediction, and recommendation related to specific information. ) information can be transmitted to NF, AF, OAM, etc.
  • NWDAF 150 may perform functions such as collection of data from NF/AF/OAM, NWDAF service registration and metadata exposure, and providing network analysis information to NF/AF.
  • UCMF UE radio capability management function
  • PLMN public land mobile network
  • AF (application function) 145 performs a function of interworking with the core network of 3GPP to provide a service.
  • the AF 145 can be largely divided into a reliable case (trusted) and an untrusted case, and the AF 145 having reliability is located inside the core network without a separate intermediate function such as the NEF 160 .
  • the functions provided by the AF 145 include application influence on traffic routing, utilization of network information exposure functions, interaction with a policy framework for policy control, and IP multimedia subsystem (IMS) related functions. interactions, etc.
  • IMS IP multimedia subsystem
  • An operation, administration and maintenance is a device for managing the entire mobile communication network including a base station and a core network.
  • the OAM may perform functions related to operation, management, maintenance, provisioning, and troubleshooting of a communication network.
  • OAM can monitor and set the functions of each base station or core network to operate smoothly according to design and policy.
  • OAM is a concept that encompasses all management-related tools and procedures, and does not refer to a specific device, but may include all tools, software, and procedures used by a network manager for management.
  • NW-TT network time translator
  • DS-TT device side time translator
  • TSN AF network time translator
  • existing methods and procedures for handling time-sensitive traffic could be supported only when an external data network (external DN) composed of special network devices capable of handling time-sensitive traffic defined by IEEE existed.
  • the mobile communication network models the section between the terminal 110 and the UPF 125 including the NW-TT as one TSN bridge. Therefore, the 5G mobile communication core network is also managed as one node supporting TSN.
  • the 5G core network should be able to control and set the control delivered by the CNC (central network control) that manages the TSN domain.
  • TSN AF which maps to the existing form, is essential.
  • the operation performed by TSN AF is performed in two major ways: delivering QoS-related requirements required in the user plane data transfer section between the terminal 110 and the UPF 125, and transferring information related to bridge configuration. Therefore, in order to perform the operation of TSN in the existing core network, TSN AF must exist.
  • the IEEE TSN network-related technology described above is an Ethernet-based technology and cannot support traffic generated from general IP-based services and applications. Therefore, in order to process the visual sensitive traffic to overcome this limitation, whether the visual sensitive traffic is supported through the general AF 145 rather than the TSN AF, and whether the external network is targeted for a general data network other than a network supporting TSN Requirements are emerging. In addition, the need to provide visual sensitive traffic between terminals connected to a mobile communication network by extending the existing support only for communication with an external data network is also required.
  • the present disclosure includes a method and apparatus for supporting, in a mobile communication network, traffic having a time-related requirement to be transmitted and received in a terminal.
  • the embodiments included in the present disclosure include a method of delivering quality of service requirement information for activating visual sensitive traffic of a terminal and a method of setting up a network using this information.
  • information related to service requirements is stored in the network in the form of subscriber information or similar in the network
  • AF explicitly delivers information about a specific terminal, or when traffic requirements are not delivered, it is inferred and methods and devices for using them.
  • the information delivery method and the utilization method follow the embodiment described above.
  • the configuration of such a mobile communication network is illustrated in FIG. 2 .
  • Information exchange and control signal exchange between the aforementioned entities may use procedures, interfaces, and protocols defined in the 3GPP standard specification document.
  • all terms included in the present disclosure are not limited by the 3GPP terms and names, and may be equally applied to systems and devices conforming to other standards.
  • the 3GPP will mainly target the communication standard set by the standard, but the main gist of the present disclosure is not far from the scope of the present disclosure even in other communication systems having a similar technical background. It can be applied with some modifications within the scope of the present disclosure, which will be possible at the judgment of those of ordinary skill in the art of the present disclosure.
  • the NWDAF may deliver analysis information or prediction information related to traffic characteristics of a specific terminal or service, and may additionally provide information for identifying a service demand level for each terminal.
  • the network operator or an entity in charge of the network operator may change or add the configuration of the network and the base station in a form that facilitates the acceptance of traffic for the smooth use of the service for the terminals.
  • users and operators can satisfy network performance requirements necessary for using the service.
  • it can be utilized to optimize network resources and configuration by utilizing the characteristics of traffic. As a result, it is possible to bring about the same effect as maximizing the quality of service perceived by the user.
  • the first embodiment discloses a method for providing a visual sensitive traffic requirement using user subscriber information.
  • Figure 2 shows the configuration of a network entity for the reception of visual sensitive traffic for the purpose of the disclosure of the present invention.
  • the UDM 255 and the UDR store information such as user subscription data, group configuration information, virtual network information, etc. in the 5G mobile communication system, and the AMF 220 and the SMF ( When a network function (hereinafter, NF) such as 230) intends to provide a service to a specific terminal 210 or 213, such information may be referred to.
  • the service provided by the UDM 255 provides functions such as subscriber information management of the terminal, SMS management, user authentication, and security-related information management, and the information is stored and used in the UDR.
  • network functions having a special purpose such as the UDM 255 , the PCF 240 , and the NEF 260 , can directly use the service. Therefore, although the UDM 255 and the UDR are independent network NFs, in this embodiment, their functions and roles are similarly used and described at the same time.
  • the embodiment of the present disclosure may be divided into three stages.
  • the first step is to determine whether the specific service traffic needs support for the visual sensitive traffic.
  • the second step is to identify quality of service (QoS) requirements to support visual sensitive traffic.
  • QoS quality of service
  • NFs are controlled or configured to satisfy the identified service quality requirements for transmission/reception traffic of a specific terminal.
  • QoS flow is used as the minimum unit to support QoS in 5GS, and network traffic classified as the same QoS flow is processed at the same QoS level and processed inside the mobile communication network.
  • QoS flow ID (hereinafter, QFI) may be used as an identifier for distinguishing QoS flows.
  • QoS flows can be characterized by a QoS profile delivered to the AN, a QoS rule delivered to the terminals 210 and 213 , and a packet detection rule (hereinafter referred to as PDR) installed in the UPF 225 .
  • the QoS profile may include different QoS parameters according to the type of QoS flow, but may typically include a 5G QoS indicator (5QI) and an allocation and retention priority (ARP).
  • 5QI may include information on the characteristics of the quality of service provided by the QoS flow.
  • resource type, priority, packet delay budget, packet error rate, averaging window, maximum data burst volume can be defined.
  • ARP includes information related to the importance or priority of QoS flows, and according to ARP, processing can be performed according to the resource occupation priority of QoS flows or preemption of other QoS flow resources.
  • guaranteed flow bitrate, maximum flow bitrate, maximum packet loss rate, etc. may be included in the QoS profile.
  • factors expressing the QoS requirements of time-sensitive traffic include a deterministic communication indication, a traffic direction, a maximum/minimum delay time, and a maximum instantaneous traffic transmission amount. (maximum/average data burst volume), traffic profile, periodic indication, periodic time, burst traffic arrival time, averaging window, priority ), survival time, and the like. A description of each factor is shown in [Table 1] below. Additionally, QoS-related factors may additionally include a combination of a user identifier such as SUPI or GIPI and an application ID or traffic descriptor for service identification in order to limit a specific terminal or service.
  • a user identifier such as SUPI or GIPI
  • an application ID or traffic descriptor for service identification in order to limit a specific terminal or service.
  • a traffic QoS requirement of a specific terminal may be included, and a traffic QoS requirement of a specific service may include only a service identifier. Therefore, in the case of a specific service occurring within a specific terminal, it can be expressed as a combination of a user identifier and a service identifier.
  • S-NSSAI single network slice selection assistance information
  • DNN data network name
  • Table 1 below discloses QoS-related factors for accommodating visual sensitive traffic, according to an embodiment.
  • QoS related factors Explanation User Identifier Used to limit specific users of traffic, SUPI (Subscription User Permeant Identifier) or GPSI (Generic Public Subscription Identifier) may be used representatively.
  • SUPI Subscribescription User Permeant Identifier
  • GPSI Generic Public Subscription Identifier
  • a terminal of a specific group When a terminal of a specific group is to be used, it may be expressed as an internal/external group identifier.
  • Service Identifier An identifier to identify a particular service. It can be used through application ID or traffic descriptor.
  • S-NSSAI and Data Network Name (DNN) Slice and DNN combination to which the QoS requirements of the UE should be applied. Whether to accept time-sensitive traffic (Deterministic Communication Indication) Whether traffic originating from a specific terminal and service has time-sensitive requirements.
  • Traffic direction/ flow direction Uplink/downlink direction of traffic to be transmitted/received from the terminal.
  • Maximum/Minimum delay The maximum/minimum delay time between the terminal and the UPF required by the traffic generated by the terminal. Depending on the nature of the traffic, only maximum or minimum latency may be included.
  • Instantaneous Maximum/Average Traffic Volume (Maximum Burst Data Volume) The maximum or average amount of traffic occurring within a given average interval. Burst data duration Duration of traffic that the terminal sends periodically periodic indication An expression of whether the generated traffic is periodic. Periodic time Time or repeating period between periodic traffic Traffic Arrival Time Time of occurrence of periodic traffic.
  • Target Point Application point of time-related factors such as traffic arrival time (eg RAN, UE, etc.) Averaging window The time interval in which the instantaneous peak traffic volume is measured. Yes, 1 second. priority Relative priority to other traffic or QoS flows. survival time A time interval during which delay or loss of packets of an application or terminal is allowed. For example, if packets are typically sent every 1 second and allow no packets or delays of up to 3 seconds, then 3 seconds is the survival time.
  • traffic arrival time eg RAN, UE, etc.
  • survival time A time interval during which delay or loss of packets of an application or terminal is allowed. For example, if packets are typically sent every 1 second and allow no packets or delays of up to 3 seconds, then 3 seconds is the survival time.
  • FIG. 3 is a diagram illustrating a procedure in which the PCF accepts visual sensitive traffic based on subscriber information according to an embodiment of the present invention.
  • FIG. 3 A procedure for starting in this embodiment is shown in FIG. 3 . It is assumed that the terminal 301 has already performed a previous step such as registration in the 5G mobile communication network, and the pre-processing procedure follows the standard specification defined by 3GPP.
  • the terminal 301 may transmit a message for a PDU session establishment request to the network in order to transmit traffic.
  • the terminal 301 may include the S-NSSAI and DNN combination in the request.
  • the terminal 301 may additionally transmit a factor related to a deterministic communication (hereinafter DC) request to the network.
  • DC deterministic communication
  • factors used for PDU session establishment defined in the 3GPP standard may be included in the message.
  • the DC request may be used for the purpose of requesting that the currently requested PDU session will be used for DC performance.
  • the S-NSSAI and DNN are a specific combination configured on the network to handle visual sensitive traffic, the DC request can be omitted.
  • DC is a communication method that guarantees that the target traffic is delivered within a specific delay time range.
  • the delay time range may be preset.
  • the DC may be a communication method that can ensure that any traffic is delivered within the preset time range.
  • the PDU session establishment request may be transmitted to the AMF 303 via the (R)AN 302 .
  • the AMF 303 may select the SMF 304 that can provide related settings by referring to the S-NSSAI, the DNN factor, and the DC request included in the PDU session request. At this time, the selected SMF 304 should be able to provide a function for DC, which will be described later.
  • TACAI time sensitive communication assist information
  • step 330 the AMF 303 creates the SMF 304 and the SM context selected in step 320 to deliver the PDU session request of the terminal 301, and transmits the request of the terminal 301 to the SMF 304. .
  • the SMF 304 may receive subscriber information related to the user's session from the UDM 305 .
  • the received subscriber information may include some of the QoS related information for DC provision exemplified in [Table 1].
  • a factor for whether the user can use DC may be included in the subscriber information representatively.
  • the information on whether the DC can be used may be used to determine whether to accept or reject the establishment of a PDU session. If the user is not allowed to use DC-related, the SMF 304 may reject the PDU session establishment request. For example, the SMF 304 may reject the PDU session establishment request immediately upon confirming that the DC-related use is not permitted.
  • the SMF 304 can replace the DC support indication by checking whether the S-NSSAI and DNN are available.
  • the SMF 304 may select the PCF 306 to receive a DC and a PCC rule related to the session from the PCF 306 .
  • the SMF 304 may select the corresponding PCF 306 by utilizing the S-NSSAI, DNN, and additionally DC request.
  • the SMF 304 may select the PCF 306 based on at least one of S-NSSAI, DNN, or DC request.
  • the SMF 304 may request SM policy establish from the selected PCF 306 in order to receive session-related rules and policies.
  • the requesting user identifier, DNN, S-NSSAI, DC request, and other related factors defined in 3GPP may be transmitted together to the PCF 306 .
  • the PCF 306 may deliver a default PCC (default PCC) rule to the SMF 304 .
  • the PCF 306 may immediately forward a default PCC (default PCC) rule to the SMF 304 to reduce the time of policy-related decisions.
  • the PCF 306 that has received the SM policy-related request from the SMF 304 in step 360 may acquire user information through the UDR 305 .
  • the PCF 306 may also acquire QoS requirement related information for the visual sensitive traffic exemplified in Table 1 above from the UDR 305 .
  • the PCF 306 determines the current/predicted network situation and traffic QoS such as UPF load, UE throughput, current network service level (QoS level), and UE satisfaction (service experience). It may be determined whether the DC request requested by the terminal 301 is currently acceptable in consideration of whether the requirement is currently acceptable. If the PCF 306 decides to support the visual sensitive traffic, the following information may be included in the PCC rule for the requested PDU session in order to satisfy the QoS requirements and efficient delivery of traffic. For 5QI, a value that satisfies the QoS requirements of the received traffic in step 360 should be selected.
  • QoS level current network service level
  • service experience UE satisfaction
  • time sensitive communication assist information for efficient scheduling of traffic to be transmitted and received by the terminal 301 and securing resources may be calculated.
  • the TSCAI may include a flow direction, a burst arrival time, a periodic time, and the like.
  • survival time may be included in addition to the previously defined TSCAI.
  • the survival time may be a time interval in which delay or loss of packets of an application or terminal is allowed. Also, according to another embodiment, it may be a number rather than a time. For example, the number of survivors may be the number of packets for which delay or loss of packets of an application or terminal is allowed.
  • the survival time and the survival interval may be expressed in units other than the time and number.
  • the 5QI and TSCAI can be calculated through the information obtained in step 360.
  • the PCF 306 may transmit the 5QI and the TSCAI calculated in step 370 to the SMF 304 as part of the PCC rule.
  • the factors defined in the existing 3GPP may be transmitted together.
  • the SMF 304 may establish an N4 session with the UPF 307 according to the standard defined by 3GPP and set related factors. In this process, detailed rules may be set to satisfy the 5QI selected in step 380 .
  • the SMF 304 delivers information about the PDU session to the (R)AN 302 according to the procedure defined by 3GPP, and in this process, the TSCAI calculated in step 380 may be delivered. Additionally, a PDU session request acknowledgment message may also be delivered to the terminal 301 .
  • the second embodiment discloses an apparatus and method for utilizing characteristics of visual sensitive traffic using network analysis information.
  • FIG. 4 illustrates a procedure in which the PCF accommodates visually sensitive traffic by using network analysis information for missing or erroneous factors based on subscriber information according to an embodiment of the present invention.
  • the present disclosure may include an apparatus and method for utilizing network analysis information provided by NWDAF to support QoS requirements of traffic generated from a specific terminal or application service.
  • NWDAF network analysis information
  • the network analyzes the traffic generated from the terminal or a specific service to determine the QoS requirements. can be guessed
  • information to be set rather than direct QoS requirements such as whether DC is supported or whether S-NSSAI or DNN is configured cannot be guessed through analysis.
  • FIG. 4 A procedure for starting in this embodiment is shown in FIG. 4 . It is assumed that the terminal 401 has already performed a previous step such as registration in the 5G mobile communication network, and the pre-processing procedure follows the standard specification defined by 3GPP.
  • the terminal 401 transmits a message for a PDU session establishment request to the network in order to transmit traffic.
  • the terminal 401 may include the S-NSSAI and DNN combination in the request, and may additionally transmit a factor related to the deterministic communication (DC) request to the network.
  • factors used for PDU session establishment defined in the 3GPP standard may be included in the message.
  • the DC request may be used for the purpose of requesting that the currently requested PDU session will be used for DC performance.
  • the S-NSSAI and DNN are a specific combination configured on the network to handle visual sensitive traffic, the DC request can be omitted.
  • DC is a communication method that guarantees that the target traffic is delivered within a specific delay time range.
  • the PDU session establishment request is transmitted to the AMF 403 via the (R)AN 402 .
  • the AMF 403 may select an SMF 404 that can provide related settings by referring to the S-NSSAI, DNN factor, and DC request included in the PDU session request.
  • the selected SMF 404 should be able to provide a function for DC, which will be described later.
  • the AMF 403 selects the SMF 404, the TACAI generation and delivery function, and the possibility of accessing information on DC-related user information of the terminal should be considered.
  • step 420 the AMF 403 creates the SMF 404 and the SM context selected in step 415 to deliver the PDU session request of the terminal 401, and transmits the request of the terminal 401 to the SMF 404. .
  • the SMF 404 may obtain subscriber information related to the user's session from the UDM 405.
  • the received subscriber information includes some of the QoS-related information for DC provision exemplified in [Table 1] above.
  • a factor for whether the user can use DC (DC support indication) may be typically included in the subscriber information, and information on whether the DC is available is used to determine whether to accept or reject PDU session establishment can be
  • the SMF 404 may reject the PDU session establishment request.
  • the SMF 304 may reject the PDU session establishment request immediately upon confirming that the DC-related use is not permitted.
  • the SMF 304 can replace the DC support indication by checking whether the S-NSSAI and DNN are available.
  • the SMF 404 may select the PCF 406 to receive the DC and session-related PCC rules from the PCF 406 .
  • the SMF 404 may select the corresponding PCF 406 by utilizing the S-NSSAI, DNN, and additionally DC request.
  • the SMF 404 may request SM policy establish from the selected PCF 406 in order to receive session-related rules and policies.
  • the requesting user identifier, DNN, S-NSSAI, DC request, and other related factors defined in 3GPP may be transmitted to the PCF 406 together.
  • the PCF 406 may deliver a default PCC (default PCC) rule to the SMF 404 .
  • the PCF 406 may immediately forward a default PCC (default PCC) rule to the SMF 404 in order to reduce the time of decision related to the policy.
  • the PCF 406 may bring the user information through the UDR 405.
  • the PCF 406 may also obtain the QoS requirement related information for the visual sensitive traffic exemplified in [Table 1] from the UDR 405.
  • QoS-related factors excluding identifiers from the information in [Table 1] may be obtained, and some or all of them may be absent.
  • the PCF 406 may determine to acquire such information in the form of network analysis information through a past record or real-time learning when the factor necessary for accommodating the visual sensitive traffic is not acquired in step 440 . Additionally, the PCF 406 periodically requests traffic analysis information to check the accuracy of the factors or whether the factors are changed, in addition to the case where the service traffic-related analysis information is omitted, and the current QoS requirement factors can be used for comparison purposes.
  • the PCF 406 may request network analysis information from the NWDAF 407 to collect characteristics of the visual sensitive traffic and QoS-related requirements.
  • the requested information can be requested in the form of a combination of a user identifier, an application identifier, a slice identifier, a data network name, etc. corresponding to the identifiers in [Table 1] described above.
  • step 455 the NWDAF 408 receiving the request from the PCF 406 transmits the analysis information to the corresponding SMF 404 or UPF 407 to collect data from the SMF 404 or UPF 407 to generate analysis information.
  • step 455 may not be executed according to the judgment of the NWDAF 408 .
  • Information collected by the NWDAF 408 to analyze the characteristics of the visual sensitive traffic from the SMF 404 or the UPF 407 may be as shown in Table 2 below. The method used for collection may be based on the event exposure framework defined by 3GPP or may be collected through its own method.
  • the SMF 404 receiving the information request from the NWDAF 408 may add rules related to traffic processing such as PDR, FAR, QER, URR, etc. to the UPF 407 in order to collect events or data for the requested target. .
  • PCF ID received from AF, used to distinguish the service provider of the application and the QoS flow to be applied IP filter information (IP filter information)
  • IP filter information IP filter information
  • PCF Information received from AF used to distinguish service data flow delivered to a specific service.
  • Media/Application Bandwidth Media/Application Bandwidth
  • Location Information AMF Current location information.
  • Data Network Name SMF/PCF The name of the network providing the service.
  • QoS Flow Id QFI
  • PCF QoS Flow Identifier
  • QoS Flow Bit Rate SMF GFBR (Guaranteed Flow Bit Rate)/MFBR (Maximum Flow Bit Rate) information of QoS Flow QoS Flow Packet Delay
  • QoS Flow packet delay information QoS Flow Packet Error Rate SMF Error rate information of QoS Flow packet Traffic Usage Report UPF/SMF Traffic usage information by UE Packet Inter arrival time/ /Inactivity timer SMF Inter-arrival time between packets of traffic or a time period without packet transmission after a specific point in time (e.g. the last burst data)
  • Flow Direction SMF Classification of traffic in uplink or downlink direction Detection of first packet SMF Time of first packet detection or next packet detection after a specific event (e.g. last burst data)
  • the NWDAF 408 collects information necessary for analysis with the SMF 404 and other NFs, and then transmits the analysis result on the characteristics of the requested visual sensitive traffic to the PCF 406 based on the collected information. have.
  • the transmitted information may be similar to or the same as the factors exemplified in [Table 1] above.
  • the NWDAF 408 may predict and transmit a time for the next data burst or may transmit a time for the most recently detected time. A plurality of such time information is transmitted at once in the form of a list, and the PCF 406 may be used to calculate a time point at which the first QoS rule is applied.
  • the PCF 406 determines the current/predicted network status and traffic QoS such as UPF load, UE throughput, current network service level (QoS level), and UE satisfaction (service experience). It may be determined whether the DC request requested by the terminal 401 is currently acceptable in consideration of whether the requirement is currently acceptable. If the PCF 406 decides to support the visual sensitive traffic, the following information may be included in the PCC rule for the requested PDU session in order to satisfy the QoS requirements and efficient delivery of traffic. 5QI should be selected so as to satisfy the QoS requirements of the traffic received in step 460. In the (R) AN 402 , the TSCAI for efficient scheduling of traffic to be transmitted/received by the terminal 401 and resource security may be calculated.
  • QoS level current network service level
  • service experience UE satisfaction
  • the TSCAI may include a flow direction, a burst arrival time, a periodic time, and the like. In the present disclosure, survival time may be included in addition to the previously defined TSCAI. These 5QI and TSCAI can be calculated through the information obtained in step 460 . If the information obtained in step 460 does not match with the information previously obtained from the subscriber information, the PCF 406 may perform the above-described process by correcting the existing information based on the information obtained in step 460 .
  • step 470 the PCF 406 transfers the 5QI and TSCAI calculated in step 465 to the SMF 404 as part of the PCC rule.
  • the factors defined in the existing 3GPP may be transmitted together.
  • the SMF 404 may establish an N4 session with the UPF 407 according to the standard defined by 3GPP and set related factors. In this process, detailed rules may be set to satisfy the 5QI selected in step 465 .
  • step 480 the SMF 404 delivers information about the PDU session to the (R)AN 402 according to the procedure defined by 3GPP, and in this process, the TSCAI calculated in step 465 may be delivered. Additionally, a PDU session request acknowledgment message may also be delivered to the terminal 401 .
  • the third embodiment discloses a method of correcting errors in factors transmitted by AF.
  • FIG. 5 is a diagram illustrating a method of supporting visually sensitive traffic by using factors transmitted by AF and network analysis information according to an embodiment of the present invention.
  • AF may request analysis information on specific traffic and support related to visual sensitive traffic from the network.
  • AF may have information about a specific application or a specific terminal in advance, and the transmitted information may provide some or all of the information, or may provide factors including some errors.
  • the present embodiment includes an apparatus and method for guessing or correcting an error by using analysis information of the NWDAF when there is an omission or error in the visually sensitive traffic transmitted by the AF.
  • the AF 508 managing a specific terminal or service may request the network to support the visual sensitive traffic and related settings.
  • the request may be forwarded to the PCF 506 through the NEF 508 .
  • the AF 508 may directly request a QoS-related setting for the session. This process can occur before the terminal 501 establishes a PDU session or while using the session.
  • the terminal 501 transmits a message for a PDU session establishment request to the network in order to transmit traffic.
  • the terminal 501 may include the S-NSSAI and DNN combination in the request, and may additionally transmit a factor related to the deterministic communication (DC) request to the network.
  • factors used for PDU session establishment defined in the 3GPP standard may be included in the message.
  • the DC request may be used for the purpose of requesting that the currently requested PDU session will be used for DC performance.
  • the S-NSSAI and DNN are a specific combination configured on the network to handle visual sensitive traffic, the DC request can be omitted.
  • DC is a communication method that guarantees that the target traffic is delivered within a specific delay time range.
  • the PDU session establishment request may be transmitted to the AMF 503 via the (R)AN 502 .
  • the AMF 503 may select the SMF 504 that can provide related settings by referring to the S-NSSAI, DNN factor, and DC request included in the PDU session request. At this time, the selected SMF 504 must be able to provide a function for DC, which will be described later.
  • the AMF 503 selects the SMF 504, the TACAI generation and delivery function, and the possibility of accessing information on DC-related user information of the terminal should be considered.
  • the AMF 503 creates the SMF 504 and the SM context selected in step 520 to deliver the PDU session request of the terminal 501, and transmits the request of the terminal 501 to the SMF 504. .
  • the SMF 504 may obtain subscriber information related to the user's session from the UDM 505 .
  • the received subscriber information may include some of the QoS related information for DC provision exemplified in [Table 1].
  • a factor for whether the user can use DC (DC support indication) may be typically included in the subscriber information, and information on whether the DC is available is used to determine whether to accept or reject PDU session establishment can be
  • the SMF 504 may reject the PDU session establishment request.
  • the SMF 504 may reject the PDU session establishment request immediately after confirming that the DC-related use is not allowed.
  • the SMF 504 may replace the DC support indication by checking whether the S-NSSAI and DNN are available.
  • the SMF 504 may select the PCF 506 to receive the PCC rule related to the DC and the session from the PCF 506.
  • the SMF 504 may select the corresponding PCF 506 by utilizing the S-NSSAI, DNN, and additionally DC request.
  • the SMF 504 may request SM policy establish from the selected PCF 506 in order to receive session-related rules and policies.
  • the requesting user identifier, DNN, S-NSSAI, DC request, and other related factors defined in 3GPP may be transmitted to the PCF 506 together.
  • the PCF 506 may immediately transmit a default PCC (default PCC) rule to the SMF 504 in order to reduce the time of decision related to the policy.
  • the PCF 506 that has received the SM policy-related request from the SMF 504 may acquire user information through the UDR 505.
  • the PCF 506 may also acquire QoS requirement related information for the time sensitive traffic exemplified in [Table 1] from the UDR 505.
  • QoS-related factors excluding identifiers from the information in [Table 1] may be obtained, and there may be cases in which some or all of them are absent.
  • the factors obtained at this time may be factors delivered by the AF 508 in step 510 .
  • the PCF 506 may determine to acquire such information in the form of network analysis information through a past record or real-time learning when it is not obtained because a factor necessary to accommodate the visual sensitive traffic does not exist. In addition, the PCF 506 periodically requests the analysis information of the traffic to check whether the accuracy of the factors or whether the factors are changed, in addition to the case where the traffic-related analysis information of the service is omitted, can be used for comparison purposes.
  • the PCF 506 may receive the analysis information by requesting the network analysis information from the NWDAF in order to collect the characteristics of the visual sensitive traffic and QoS-related requirements.
  • This process may be the same as steps 450 to 460 of the second embodiment described above.
  • the requested information can be requested in the form of a combination of a user identifier, an application identifier, a slice identifier, a data network name, etc. corresponding to the identifiers in [Table 1] described above.
  • the PCF 506 determines the current/predicted network status and traffic QoS such as UPF load, UE throughput, current network service level (QoS level), and UE satisfaction (service experience). It may be determined whether the DC request requested by the terminal 501 is currently acceptable in consideration of whether the requirement is currently acceptable. If the PCF 506 decides to support the time-sensitive traffic, the following information may be included in the PCC rule for the requested PDU session in order to satisfy the QoS requirements and efficient delivery of traffic. 5QI should be selected so as to satisfy the QoS requirements of the traffic received in step 540. In the (R) AN 502 , the TSCAI for efficient scheduling of traffic to be transmitted and received by the terminal 501 and securing resources may be calculated.
  • QoS level current network service level
  • service experience UE satisfaction
  • the TSCAI may include a flow direction, a burst arrival time, a periodic time, and the like. In the present disclosure, survival time may be included in addition to the previously defined TSCAI.
  • These 5QI and TSCAI can be calculated through the information obtained in step 540 . If the information obtained in step 540 and the information previously obtained from the subscriber information do not match, the PCF 506 may perform the above-described process by correcting the existing information based on the information obtained in step 540 .
  • step 550 the PCF 506 transfers the 5QI and TSCAI calculated in step 545 to the SMF 504 as part of the PCC rule.
  • the factors defined in the existing 3GPP may be transmitted together.
  • the SMF 504 may establish an N4 session with the UPF 507 according to the standard defined by 3GPP and set related factors. In this process, detailed rules may be set to satisfy the 5QI selected in step 545 .
  • the SMF 504 delivers information about the PDU session to the (R)AN 502 according to the procedure defined by 3GPP, and in this process, the TSCAI calculated in step 545 may be delivered. Additionally, a PDU session request acknowledgment message may also be delivered to the terminal 501 .
  • the fourth embodiment discloses a method for the SMF to deliver traffic information to (R)AN for efficient traffic delivery.
  • FIG. 6 is a diagram illustrating a method in which the SMF transmits information of visual sensitive traffic to a base station by using network analysis information to efficiently manage resources according to an embodiment of the present invention.
  • the transmitted and received traffic may be processed according to the basic traffic processing rule set by the network operator.
  • the network detects it and transmits it to the (R)AN, so that the service experience for the traffic can be improved without subscribing to the service for the visually sensitive traffic.
  • network usage efficiency can be improved by supporting efficient scheduling of traffic whose characteristics have been identified from the network point of view. A procedure for disclosing this embodiment is shown in FIG. 6 .
  • the terminal 601 transmits a message for a PDU session establishment request to the network in order to transmit traffic.
  • the terminal 601 may include the S-NSSAI and DNN combination in the request, and may additionally transmit a factor related to the deterministic communication (DC) request to the network.
  • the terminal 601 may transmit a message including at least one of S-NSSAI, DNN, or DC request-related factors to the network.
  • factors used for PDU session establishment defined in the 3GPP standard may be included in the message.
  • the PDU session establishment request may be transmitted to the AMF 603 via the (R)AN 602 .
  • the AMF 603 may select the SMF 604 that may provide related settings with reference to the S-NSSAI, DNN factor, and DC request included in the PDU session request.
  • the AMF 603 may generate the SMF 604 and the SM context selected in step 615 to deliver the PDU session request of the terminal 601, and transmit the request of the terminal 601 to the SMF 604. .
  • the SMF 604 may obtain subscriber information related to the user's session from the UDM 605 .
  • the received subscriber information may include some of the QoS related information for DC provision exemplified in [Table 1].
  • the SMF 604 may select the PCF 606 to receive the PCC rule related to the DC and the session from the PCF 606. At this time, the SMF 604 may select the corresponding PCF 606 by utilizing the S-NSSAI, DNN, and additionally DC request. To receive session related rules and policies, SMF 604 may request SM policy establish from selected PCF 606 . In this case, the requesting user identifier, DNN, S-NSSAI, and other related factors defined in 3GPP may be transmitted to the PCF 606 together.
  • the PCF 606 may deliver a default PCC (default PCC) rule to the SMF 604 . For example, the PCF 606 may immediately forward a default PCC (default PCC) rule to the SMF 604 to reduce the time of policy-related decisions.
  • the SMF 604 may determine to make a request for the traffic characteristics of the terminal 601 related to the currently requested PDU session. In this case, the SMF 604 may use a portion of the data obtained in step 630, and may make this determination based on the fact that the traffic of the terminal 601 has a specific pattern through expected UE behaviors. .
  • the SMF 604 may request network analysis information from the NWDAF 608 in order to collect characteristics of visual sensitive traffic and QoS-related requirements.
  • the requested information can be requested in the form of a combination of a user identifier, an application identifier, a slice identifier, and a data network name corresponding to the identifiers in [Table 1].
  • the NWDAF 608 receiving the request from the SMF 604 sends the SMF 604 or UPF 607 to the corresponding SMF 604 or UPF 607 to collect data from the SMF 604 or UPF 607 to generate analysis information.
  • the information collected by the NWDAF 608 to analyze the characteristics of the visual sensitive traffic from the SMF 604 or the UPF 607 may be as shown in [Table 2] above.
  • the method used for collection may be based on the event exposure framework defined by 3GPP or may be collected through its own method.
  • the SMF 604 receiving the information request from the NWDAF 608 may add traffic processing related rules such as PDR, FAR, QER, and URR to the UPF 607 in order to collect events or data for the requested target. .
  • the NWDAF 608 collects the information necessary for analysis with the SMF 604 and other NFs, and based on the collected information, the analysis result on the characteristics of the requested visual sensitive traffic can be delivered to the PCF 606. have.
  • the transmitted information may be similar to or the same as the factors exemplified in [Table 1] above.
  • the NWDAF 608 may predict and transmit a time for the next data burst or may transmit a time for the most recently detected time. A plurality of such time information is transmitted at once in the form of a list, and the PCF 606 may use it to calculate a time to apply the first change.
  • the SMF 604 may determine the calculated TSCAI and survival time based on the information obtained in step 650 . For example, the SMF 604 may calculate the TSCAI and survival time.
  • the SMF 604 may establish an N4 session with the UPF 607 and set related factors.
  • the SMF 604 delivers information about the PDU session to the (R)AN 602 according to the procedure defined by 3GPP, and in this process, the TSCAI calculated in step 655 may be delivered. Additionally, a PDU session request acknowledgment message may also be delivered to the terminal 601 .
  • FIG. 7 is a diagram illustrating a structure of network entities according to an embodiment of the present invention.
  • the network entity of the present invention is a concept including a network function according to system implementation.
  • the network entity disclosed in FIG. 7 is a policy control function (PCF) entity, a session management function (SMF) entity, and a network data analytics function (NWDAF) entity.
  • PCF policy control function
  • SMF session management function
  • NWDAF network data analytics function
  • AF application function
  • the network entity may include a transceiver 710 , a control unit 720 , and a storage unit 730 .
  • the controller 720 may be defined as a circuit or an application specific integrated circuit or at least one processor.
  • the transceiver 710 may transmit/receive signals to and from other network entities.
  • the transceiver 710 may receive, for example, system information from a base station, and may receive a synchronization signal or a reference signal.
  • the controller 720 may control the overall operation of the network entity according to the embodiment proposed in the present invention. For example, the controller 720 may control a signal flow between blocks to perform an operation according to the procedure described above with reference to FIGS. 1 to 6 .
  • the control unit 720 includes a DC request for transmitting and receiving time sensitive traffic from the SMF entity receiving the PDU session establishment request from the terminal. Controls the transceiver 710 to receive, determines whether to accept the DC request to the terminal, and determines whether to accept the DC request to the terminal, determining support information for supporting the visual sensitive traffic and may control the transceiver 710 to transmit a second message including the determined assistance information to the SMF entity.
  • the controller 720 transmits a third message requesting user information to the server in response to receiving the first message, and QoS (quality of service) related information for supporting the visual sensitive traffic from the server Controls the transceiver 710 to receive a fourth message including can be controlled
  • the DC may be characterized as a communication method that guarantees that any traffic is delivered within a preset delay time range.
  • the controller 720 transmits a fifth message requesting network analysis information to a network data analytics function (NWDAF) entity, and at least one network function (NF) entity from the NWDAF.
  • NWDAF network data analytics function
  • the transceiver 710 may be controlled to receive a sixth message including the network analysis information determined based on information collected from .
  • a seventh message including QoS-related information may be transmitted from the AF entity to the server before or during the PDU session formation.
  • the SMF receives at least one of single network slice selection assistance information (S-NSSAI), data network name (DNN), or DC request from the terminal, and based on at least one of the received NSSAI, DNN or DC request.
  • S-NSSAI single network slice selection assistance information
  • DNN data network name
  • DC request from the terminal
  • the controller 720 may receive the first message through the transceiver 710 .
  • the second message may further include survival time information, which is information about a time for which delay or loss of an arbitrary packet is permitted.
  • the network analysis information determined based on information collected from at least one NF entity from the NWDAF is transmitted to the SMF, and the visual sensitive traffic by the SMF Support information for supporting the .
  • the storage unit 730 may store at least one of information transmitted and received through the transceiver 710 and information generated through the control unit 720 .
  • the storage unit 730 may store information required for service detection according to the above-described embodiment.
  • the network entity may be any one of a terminal, a base station, AMF, SMF, UPF, NF, NEF, PCF, NWDAF, UDM, UDR, AF, and DN.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne une technique de communication permettant de faire converger une technologie IdO avec un système de communication 5G afin de prendre en charge un débit de transfert de données supérieur à celui d'un système 4G, et un système associé. La présente invention peut s'appliquer à des services intelligents (par exemple, des maisons intelligentes, des bâtiments intelligents, des villes intelligentes, des voitures intelligentes ou des voitures connectées, les soins de santé, l'éducation numérique, le commerce de détail, des services liés à la sécurité et à la sûreté, etc.), sur la base de la technologie de communication 5G et de la technologie associée à l'IdO. Une NWDAF selon un mode de réalisation de la présente divulgation peut transmettre des informations d'analyse ou des informations de prévision relatives à des caractéristiques de trafic d'un terminal ou d'un service spécifique et, en outre, fournit des informations pour identifier un niveau de service requis par chaque terminal.
PCT/KR2021/005991 2020-05-20 2021-05-13 Procédé et dispositif de prise en charge de communication déterministe pour terminal dans un réseau de communication mobile WO2021235769A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0060497 2020-05-20
KR1020200060497A KR20210143563A (ko) 2020-05-20 2020-05-20 이동통신 네트워크에서 단말에 Deterministic Communication을 지원하는 방법 및 장치

Publications (1)

Publication Number Publication Date
WO2021235769A1 true WO2021235769A1 (fr) 2021-11-25

Family

ID=78698017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/005991 WO2021235769A1 (fr) 2020-05-20 2021-05-13 Procédé et dispositif de prise en charge de communication déterministe pour terminal dans un réseau de communication mobile

Country Status (2)

Country Link
KR (1) KR20210143563A (fr)
WO (1) WO2021235769A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114125924A (zh) * 2021-11-30 2022-03-01 中国联合网络通信集团有限公司 Tsn业务的处理方法、装置及计算机可读存储介质
CN114205866A (zh) * 2021-12-10 2022-03-18 中国电信股份有限公司 确定性信息上报、下发方法、装置、存储介质及电子设备
WO2023213418A1 (fr) * 2022-05-04 2023-11-09 Lenovo (Singapore) Pte. Ltd Procédé permettant de prendre en charge des réseaux déterministes dans un réseau de communication sans fil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024010267A1 (fr) * 2022-07-07 2024-01-11 인텔렉추얼디스커버리 주식회사 Procédure de modification de session pdu pour trafic industriel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020035130A1 (fr) * 2018-08-14 2020-02-20 Huawei Technologies Co., Ltd. Qualité de service sensible au temps dans des systèmes de communication

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020035130A1 (fr) * 2018-08-14 2020-02-20 Huawei Technologies Co., Ltd. Qualité de service sensible au temps dans des systèmes de communication

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; System architecture for the 5G System (5GS); Stage 2 (Release 16)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 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. V16.4.0, 27 March 2020 (2020-03-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 430, XP051861090 *
NOKIA, NOKIA SHANGHAI BELL, HUAWEI, HISILICON, ERICSSON, VIVO: "Introducing support for UE and UPF Residence Time for TSC Deterministic QoS", 3GPP DRAFT; S2-1906753-WASS2-1904081-TSC-RESIDENCE_TIME_UPDATED-23.501CR_V6, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. Xian; 20190408 - 20190412, 22 May 2019 (2019-05-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051744110 *
NOKIA, NOKIA SHANGHAI BELL, QUALCOMM, SAMSUNG: "Introducing support TSC Deterministic QoS", 3GPP DRAFT; S2-1902855-TSC-QOS_INTRO-23.501CR_V1, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. Santa Cruz - Tenerife, Spain; 20190225 - 20190301, 1 March 2019 (2019-03-01), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051611234 *
NOKIA, NOKIA SHANGHAI BELL: "Update to Support TSAI for TSC Deterministic QoS", 3GPP DRAFT; S2-1904622-WASS2-1903652-TSC-TSAI_UPDATE-23.501CR_V4, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, no. Xian; 20190408 - 20190412, 11 April 2019 (2019-04-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051703785 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114125924A (zh) * 2021-11-30 2022-03-01 中国联合网络通信集团有限公司 Tsn业务的处理方法、装置及计算机可读存储介质
CN114125924B (zh) * 2021-11-30 2023-05-30 中国联合网络通信集团有限公司 Tsn业务的处理方法、装置及计算机可读存储介质
CN114205866A (zh) * 2021-12-10 2022-03-18 中国电信股份有限公司 确定性信息上报、下发方法、装置、存储介质及电子设备
WO2023213418A1 (fr) * 2022-05-04 2023-11-09 Lenovo (Singapore) Pte. Ltd Procédé permettant de prendre en charge des réseaux déterministes dans un réseau de communication sans fil

Also Published As

Publication number Publication date
KR20210143563A (ko) 2021-11-29

Similar Documents

Publication Publication Date Title
WO2021235769A1 (fr) Procédé et dispositif de prise en charge de communication déterministe pour terminal dans un réseau de communication mobile
WO2019194630A1 (fr) Procédé et appareil aptes à prendre en charge des communications dans un système 5g
US20220150166A1 (en) Methods and apparatuses for supporting a local area network (lan)
WO2021141348A1 (fr) Procédé et appareil de fourniture d'une pluralité de réseaux virtuels pour une application unique dans un réseau de communication mobile
WO2021091266A1 (fr) Procédé et dispositif pour fournir des informations d'analyse de réseau pour une sélection d'indice rfsp dans un réseau de communication mobile
WO2019035638A1 (fr) Procédé de vérification d'une modification d'un type de connexion sans fil d'un terminal dans un serveur d'applications tiers
WO2021235793A1 (fr) Procédé et appareil pour gérer une qualité de service dans un système de communication sans fil
WO2021141337A1 (fr) Procédé et appareil pour prendre en charge un réseautage sensible au temps entièrement distribué dans un système de communication mobile
WO2018230941A1 (fr) Procédé d'accès à un réseau de terminal, et procédé et appareil pour la prise en charge de mobilité et de distribution de données
WO2022025666A1 (fr) Procédé et dispositif d'utilisation simultanée de tranches de réseau
US11564187B2 (en) Method and device for supporting configuration of time synchronization network in mobile communication network
WO2022082724A1 (fr) Procédé et appareil pour une prise en charge de service de multidiffusion dans un réseau sensible au temps
WO2021096325A1 (fr) Procédé et appareil pour améliorer une précision de contrôle de tranche de réseau dans un système de communication sans fil
WO2021045531A1 (fr) Appareil et procédé d'automatisation de réseau dans un système de communication sans fil
WO2012030156A2 (fr) Procédé et appareil adaptés pour paramétrer des données de contrôle de connexion d'un terminal dans un système de communication mobile
WO2015018194A1 (fr) Procédé et dispositif d'établissement de tunnel
US11057757B2 (en) Techniques for providing subscriber-specific routing of a roaming user equipment in a visited communication network
WO2021141295A1 (fr) Procédé et dispositif de mise à jour d'informations de support de communication sensible au temps dans un système de communication mobile
WO2022005037A1 (fr) Procédé et dispositif de fourniture d'informations d'analyse de réseau dans un réseau de communication sans fil
WO2021235901A1 (fr) Procédé et appareil pour prendre en charge la mobilité pour la collecte et l'analyse de données de réseau dans un réseau de communication sans fil
WO2022025669A1 (fr) Appareil et procédé de prise en charge d'un interfonctionnement par découpage en tranches
WO2021167250A1 (fr) Dispositif et procédé de prise en charge de tsc dans un réseau de communication sans fil
WO2016167592A1 (fr) Procédé et appareil de communication avec un réseau local sans fil dans un système de communication mobile
WO2023075418A1 (fr) Procédé et appareil de fourniture de tranche de réseau dans un système de communication sans fil
WO2023214752A1 (fr) Procédé et appareil pour déterminer un modèle d'apprentissage automatique sur la base d'informations de congestion de réseau dans un système de communication sans fil

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21809189

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21809189

Country of ref document: EP

Kind code of ref document: A1