WO2022151206A1 - Procédé de communication, et dispositif de réseau - Google Patents

Procédé de communication, et dispositif de réseau Download PDF

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Publication number
WO2022151206A1
WO2022151206A1 PCT/CN2021/071854 CN2021071854W WO2022151206A1 WO 2022151206 A1 WO2022151206 A1 WO 2022151206A1 CN 2021071854 W CN2021071854 W CN 2021071854W WO 2022151206 A1 WO2022151206 A1 WO 2022151206A1
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WIPO (PCT)
Prior art keywords
network element
user plane
plane function
function network
interface
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PCT/CN2021/071854
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English (en)
Chinese (zh)
Inventor
周润泽
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华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202180051556.1A priority Critical patent/CN115918240A/zh
Priority to PCT/CN2021/071854 priority patent/WO2022151206A1/fr
Publication of WO2022151206A1 publication Critical patent/WO2022151206A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers

Definitions

  • the present application relates to the field of communication, and more particularly, to a communication method and network device.
  • SMF Session Management Function
  • UPF User Plane Function
  • the functions of UPF are gradually becoming stronger. For example, it can analyze the user's business status, including: whether the traffic is abnormal, whether the delay caused by network congestion changes greatly, Whether the delay satisfies the service experience, etc.
  • NWDAF Network Data Analytics Funtion
  • the present application provides a communication method and network device, which can realize other network elements other than SMF types to control UPF network elements, and UPF network elements can operate in isolation based on different configurations of SMF network elements and other types of network elements, and process the same report in parallel. This allows multiple types of controllers to control the same UPF network element.
  • a first aspect provides a communication method, comprising: a session management function network element acquiring an interface identifier; the session management function network element sending the address of the user plane function network element and the interface identifier to a first network element, the The interface identifier is used by the first network element to determine the interface corresponding to the interface identifier, and the address of the user plane function network element and the interface corresponding to the interface identifier are used by the first network element to control the user plane function network element.
  • the interface corresponding to the interface identifier is a message interface newly added by the user plane functional network element, including: a message exit and/or a message entry.
  • the session management function network element can obtain the interface identifier and send the address of the user plane function network element and the interface identifier to the first network element, so that the first network element can realize the address of the user plane function network element through the first network element.
  • the interface corresponding to the interface identifier controls the user plane function network element.
  • the user plane functional network elements can operate in isolation based on the different configurations of the session management function network elements and other types of network elements, and process the same packet in parallel, thereby enabling multiple types of controllers to control the user plane function network elements.
  • the session management function network element sends first information to the user plane function network element, where the first information is used to indicate the user plane function network element meta-assigns the interface identifier.
  • acquiring the interface identifier by the session management function network element includes: the session management function network element receiving the interface identifier from the user plane function network element.
  • the session management function network element sends the interface identifier to the user plane function network element.
  • the session management function network element receives capability indication information from the user plane function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by the network element of the first type, and the The network element of the first type is a network element other than the session management function type.
  • the network elements of the first type may include: an access management function (Access and Mobility Management Function, AMF), a network data analysis function NWDAF, a policy control function (policy control function, PCF), a group management function ( Group Management Function (GMF), Network Expsorue Function (NEF), Unified Data Management (UDM), Media Function (MF), Network Repository Function (NRF), Authentication Different types of Control Plane Function (CPF) network elements such as Authentication Server Function (AUSF), Binding Support Function (BSF), Network Data Analysis (NWDA), etc.
  • AMF Access and Mobility Management Function
  • NWDAF policy control function
  • PCF policy control function
  • GMF Group Management Function
  • NEF Network Expsorue Function
  • UDM Unified Data Management
  • MF Media Function
  • NRF Network Repository Function
  • CPF Control Plane Function
  • AUSF Authentication Server Function
  • BSF Binding Support Function
  • NWDA Network Data Analysis
  • the session management function network element receives a request message from the first network element, where the request message is used to request to control the user plane function network element.
  • the request message includes at least one of the following information: an identifier of the user plane function network element, a service area covered by the user plane function network element, and a session identifier of the user equipment.
  • a second aspect provides a communication method, comprising: a user plane function network element receiving a packet detection rule and a packet processing rule corresponding to the first network element from a first network element, where the first network element is A network element of a non-session management function type; the user plane function network element receives a packet through an interface corresponding to the first network element; the user plane function network element detects the packet according to the packet detection rule , and process the message according to the message processing rule.
  • the user plane function network element receives the packet detection rule and the packet processing rule corresponding to the first network element from the first network element, and according to the packet detection rule and the packet processing rule The packets are detected and processed respectively, so that the first network element can control the user plane function network element through the interface corresponding to the address of the user plane function network element and the interface identifier.
  • the user plane functional network elements can operate in isolation based on the different configurations of the session management function network elements and other types of network elements, and process the same packet in parallel, thereby enabling multiple types of controllers to control the user plane function network elements.
  • the user plane function network element receives first information from the session management function network element, where the first information is used to indicate allocation of the user plane function network element The interface identifier of the interface.
  • the user plane function network element sends the interface identifier of the interface to the session management function network element.
  • the user plane function network element receives the interface identifier of the interface from the session management function network element.
  • the user plane function network element sends capability indication information to the session management function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by the network element of the first type, and the The network element of the first type is a network element of a non-session management function type.
  • a third aspect provides a communication method, comprising: a first network element receiving an address and an interface identifier of a user plane function network element from a session management function network element; the first network element determining the interface according to the interface identifier Identifies the corresponding interface; the first network element is used by the first network element to control the user plane function network element according to the address of the user plane function network element and the interface corresponding to the interface identifier; the first network element controls the user plane function network element; The network element sends a packet detection rule and a packet processing rule corresponding to the first network element to the user plane function network element, where the first network element is a network element of a non-session management function type.
  • the first network element receives the address and interface identifier of the user plane function network element from the session management function network element, and sends a report corresponding to the first network element to the user plane function network element.
  • the message detection rule and the message processing rule can realize that the first network element controls the user plane function network element through the interface corresponding to the address of the user plane function network element and the interface identifier.
  • the user plane functional network elements can operate in isolation based on the different configurations of the session management function network elements and other types of network elements, and process the same packet in parallel, thereby enabling multiple types of controllers to control the user plane function network elements.
  • the first network element sends a request message to the session management function network element, where the request message is used to request the first network element to request the control Describe the user plane functional network elements.
  • the request message includes at least one of the following information: an identifier of the user plane function network element, a service area covered by the user plane function network element, and a session identifier of the user equipment.
  • a network device comprising: a processing unit for acquiring an interface identifier; a transceiver unit for sending an address of a user plane function network element and the interface identifier to a first network element, the user plane The address of the functional network element and the interface identifier are used by the first network element to control the user plane functional network element through the interface corresponding to the interface identifier.
  • the transceiver unit is further configured to send first information to the user plane function network element, where the first information is used to indicate the user plane function
  • the network element assigns the interface identifier
  • the processing unit is configured to receive the interface identifier from the user plane function network element through the transceiver unit.
  • the transceiver unit is further configured to send the interface identifier to the user plane function network element.
  • the transceiver unit is further configured to receive capability indication information from the user plane function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by a network element of the first type,
  • the first type of network element is a network element of a non-session management function type.
  • the transceiver unit is further configured to receive a request message from the first network element, where the request message is used to request to control the user plane function network element.
  • the request message includes at least one of the following information: an identifier of the user plane function network element, a service area covered by the user plane function network element, and a session identifier of the user equipment.
  • a network device comprising: a transceiver unit configured to receive a packet detection rule and a packet processing rule corresponding to the first network element from a first network element, wherein the first network element is a network element of a non-session management function type; the transceiver unit is further configured to receive a message through an interface corresponding to the first network element; a processing unit is configured to detect the message according to the message detection rule, and The message is processed according to the message processing rule.
  • the transceiver unit is further configured to receive first information from a session management function network element, where the first information is used to indicate the user plane function network element An interface identifier for the interface is assigned.
  • the transceiver unit is further configured to send the interface identifier of the interface to the session management function network element.
  • the transceiver unit is further configured to receive an interface identifier of the interface from the session management function network element.
  • the transceiver unit is further configured to send capability indication information to the session management function network element, where the capability indication information is used to indicate that the user plane function network element can be controlled by a network element of the first type,
  • the first type of network element is a network element of a non-session management function type.
  • a network device comprising: a transceiver unit, configured to receive an address and an interface identifier of a user plane function network element from a session management function network element; a processing unit, configured to determine the interface according to the interface identifier identify the corresponding interface; the processing unit is further configured to control the user plane function network element according to the address of the user plane function network element and the interface identifier; the transceiver unit is further configured to send the user plane function network element to the user plane
  • the functional network element sends a packet detection rule and a packet processing rule corresponding to the first network element, where the first network element is a network element of a non-session management function type.
  • the transceiver unit is further configured to send a request message to the session management function network element, where the request message is used to request the first network element to request The user plane functional network element is controlled.
  • the request message includes at least one of the following information: an identifier of the user plane function network element, a service area covered by the user plane function network element, and a session identifier of the user equipment.
  • a network device including a transceiver, a processor, and a memory, where the processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory A computer program, causing the network device to execute the method in the first aspect or any possible implementation manner of the first aspect, or the method in the second aspect or any possible implementation manner of the second aspect, or the third aspect or the method in any possible implementation manner of the third aspect.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the network device further includes a transmitter (transmitter) and a receiver (receiver).
  • a communication device comprising: a unit for implementing the method in the first aspect or any possible implementation manner of the first aspect; or a unit for implementing the second aspect or any possible implementation manner of the second aspect A method in an implementation manner; or a method for implementing the third aspect or any possible implementation manner of the third aspect.
  • a communication system including: a network device for performing the method in the first aspect or any possible implementation manner of the first aspect; or for performing the second aspect or the second aspect as described above A method in any possible implementation manner of the aspect; or for performing the method in any of the above-mentioned third aspect or any possible implementation manner of the third aspect.
  • a tenth aspect provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program or code, and when the computer program or code runs on a computer, causes the computer to execute the above-mentioned first aspect or A method in any possible implementation manner of the first aspect, a method in any possible implementation manner of the second aspect or the second aspect, and a method in the third aspect or any possible implementation manner of the third aspect.
  • a chip comprising at least one processor coupled to a memory for storing a computer program, the processor for invoking and executing the computer program from the memory, such that
  • the network device on which the chip system is installed executes the method in the first aspect or any possible implementation manner of the first aspect, the second aspect or the method in any possible implementation manner of the second aspect, and the third aspect or the method in any possible implementation manner of the second aspect.
  • the method in any of the three possible implementations.
  • the chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • a twelfth aspect provides a computer program product, the computer program product comprising: computer program code, when the computer program code is run by a network device, the network device is made to perform the above-mentioned first aspect or the first aspect A method in any possible implementation manner, a method in any possible implementation manner of the second aspect or the second aspect, and a method in the third aspect or any possible implementation manner of the third aspect.
  • the UPF can implement other types of control plane network elements other than the SMF type to control the UPF, and the UPF can operate in isolation based on the different configurations of the SMF network element and other network elements, and process the same packet in parallel, thereby Implement multiple types of controllers to control the same UPF.
  • FIG. 1 is a schematic diagram of an example of the communication system of the present application.
  • FIG. 2 is a schematic diagram of an example of a communication scenario of the present application.
  • FIG. 3 is a schematic diagram of an example of a communication method to which the present application is applied.
  • FIG. 4 is a schematic diagram of an example of message processing logic to which the present application is applied.
  • FIG. 5 is a schematic diagram of another example of the communication method to which the present application is applied.
  • FIG. 6 is a schematic diagram of another example of the communication method to which the present application is applied.
  • FIG. 7 is a schematic diagram of an example of a communication device to which the present application is applied.
  • FIG. 8 is a schematic diagram of another example of a communication device to which the present application is applied.
  • FIG. 9 is a schematic diagram of another example of a communication device to which the present application is applied.
  • FIG. 10 is a schematic diagram of an example of a network device to which the present application is applied.
  • FIG. 11 is a schematic diagram of another example of a network device to which the present application is applied.
  • FIG. 12 is a schematic diagram of another example of a network device to which the present application is applied.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • General Packet Radio Service General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G system or New Radio New Radio, NR
  • V2V Vehicle to Vehicle
  • V2I Vehicle to Infrastructure
  • V2P Vehicle to Pedestrian
  • V2N Vehicle to Network
  • FIG. 1 is a network architecture applied to an embodiment of the present application, and each network element that may be involved in the network architecture will be described separately.
  • Terminal device 110 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of terminals, mobile stations, MS), terminal (terminal), user equipment (user equipment, UE), soft terminal and so on. For example, water meters, electricity meters, sensors, etc.
  • (Radio Access Network, (R)AN) network element 120 used to provide network access functions for authorized terminal equipment in a specific area, and can use different quality according to the level of terminal equipment, service requirements, etc. transmission tunnel.
  • the (R)AN network element can manage wireless resources, provide access services for terminal equipment, and then complete the forwarding of control signals and terminal equipment data between the terminal equipment and the core network.
  • the (R)AN network element can also be understood as a traditional network. in the base station.
  • network element may also be referred to as an entity, software, equipment, device, or module, etc., which is not particularly limited in this application.
  • the description of “network element” is omitted in some descriptions.
  • the (R)AN network element is abbreviated as (R)AN, in this case, the “(R)AN ”)AN network element” should be understood as (R)AN network element network element or (R)AN entity or (R)AN AN software, hereinafter, the description of the same or similar situations is omitted.
  • User plane function network element 130 used for packet routing and forwarding, and quality of service (Quality of Service, QoS) processing of user plane data, and the like.
  • QoS Quality of Service
  • the user plane network element may be a user plane function UPF network element.
  • the user plane network element may still be the UPF network element, or may have other names, which are not limited in this application.
  • Data network network element 140 used to provide a network for transmitting data.
  • the data network element may be a data network (Data Network, DN) network element.
  • the data network element may still be a DN network element, or may have other names, which are not limited in this application.
  • Access management network element 150 mainly used for mobility management and access management, etc., and can be used to implement other functions in the mobility management entity (Mobility Management Entity, MME) function except for session management, for example, legal Monitoring and access authorization/authentication functions.
  • MME Mobility Management Entity
  • the access management network element may be an access management function AMF network element.
  • the access management network element may still be an AMF network element, or may have other names, which are not limited in this application.
  • Session management network element 160 mainly used for session management, Internet Protocol (IP) address allocation and management of terminal devices, selection of the endpoints and downlinks of interfaces that can manage user plane functions, policy control and charging functions data notification, etc.
  • IP Internet Protocol
  • the session management network element may be a session management function SMF network element.
  • the session management network element may still be an SMF network element, or may have other names, which are not limited in this application.
  • Policy control network element 170 a unified policy framework for guiding network behavior, providing policy rule information and the like for control plane functional network elements (eg, AMF, SMF network elements, etc.).
  • control plane functional network elements eg, AMF, SMF network elements, etc.
  • the policy control network element may be a Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF) network element.
  • Policy and Charging Rules Function Policy and Charging Rules Function
  • PCRF Policy and Charging Rules Function
  • the policy control network element may be a policy control function PCF network element.
  • the policy control network element may still be the PCF network element, or may have other names, which are not limited in this application.
  • Network storage function network element 180 used to maintain real-time information of all network function services in the network.
  • the network storage network element may be a network registration function NRF network element.
  • the network storage network element may still be an NRF network element, or may have other names, which are not limited in this application.
  • Application network element 190 used to perform data routing affected by the application, access network element with open functions, and interact with the policy framework to perform policy control and the like.
  • the application network element may be an application function (Application Function, AF) network element.
  • AF Application Function
  • the application network element may still be the AF network element, or may have other names, which are not limited in this application.
  • Data management network element 1100 used for processing terminal equipment identification, access authentication, registration, and mobility management.
  • the data management network element may be a unified data management UDM network element.
  • the unified data management may still be a UDM network element, or may have other names, which are not limited in this application.
  • Group management network element 1200 used to be responsible for the creation and member management of a mobile network local area network (LAN), for example, a 5G LAN group (specifically, a terminal device group).
  • LAN mobile network local area network
  • 5G LAN group specifically, a terminal device group.
  • the group management network element may also be a group management function GMF network element.
  • network element may also be referred to as an entity, a device, an apparatus, or a module, etc., which is not particularly limited in this application.
  • SMF SMF network element
  • SMF entity SMF entity
  • network elements or functions may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (eg, a cloud platform).
  • the N2 interface is the reference point of the RAN network element 20 and the AMF network element 160, and is used for sending non-access stratum (NAS) messages;
  • the N3 interface is the RAN network element 120 and the UPF.
  • the reference point between the network elements 130 is used to transmit data on the user plane, etc.;
  • the N4 interface is the reference point between the SMF network element 170 and the UPF network element 130, used to transmit, for example, the tunnel identification information of the N3 connection, the data cache indication information, and information such as downlink data notification messages;
  • the N6 interface is the reference point between the UPF network element 130 and the DN network element 140, which is used to transmit data on the user plane;
  • the N9 interface is the connection between the UPF network element 130 and another UPF network element reference points, etc.
  • control plane network elements to control UPF also requires the establishment of a connection between the two, such as establishing a connection at the device granularity, or establishing a connection between devices, or using a service interface and an air interface to realize the connection between the two.
  • the scope of the SBA is limited to the control plane network elements of the core network, excluding the user plane function UPF network elements. Moreover, the interfaces N3, N9, N6, and N4 supported by UPF are not service interfaces. As can be seen from the above architecture diagram, the network element devices that can be connected to the UPF include SMF, RAN, DN and another UPF.
  • each network element included in the communication system listed above is only an exemplary illustration, and the present application is not limited to this.
  • it may also include but not limited to:
  • Authentication service network element used for authentication service and key generation to realize two-way authentication of terminal equipment, supports a unified authentication framework, and can be an authentication server function AUSF network element;
  • Network open function network element It is used for the services and capabilities provided by the secure open 3GPP network function, which can be open internally or open to a third party, etc. It can be a network open function network element NEF;
  • Network slice selection function network element used to select a set of network slice instances for the user equipment, determine the allowed network slice selection assistance information (Network Slice Selection Assistance Information, NSSAI), and determine the AMF set that can serve the user equipment, which can be slice selection Function network element (Network Slice Selection Function, NSSF);
  • NSSAI Network Slice Selection Assistance Information
  • NSSF Network Slice Selection Function
  • Binding support function BSF network element used to find the PCF associated with the session
  • NWDA network elements used to collect and store information from terminal equipment, RAN network elements, and other network entities (eg, AMF network elements), analyze this information, and generate contextual information about users ( It can be considered as the information of the application layer), and distribute the information of the application layer, etc.
  • network function entities such as AMF, SMF, PCF, GMF, and UDM are called network function (Network Function, NF) network elements; or, in other network architectures, AMF, SMF, PCF
  • AMF, SMF, PCF A set of network elements such as , GMF and UDM can be called control plane function CPF network elements.
  • FIG. 2 shows a schematic block diagram of another example architecture involved in the present application.
  • the SMF and other network elements control the UPF through the configuration parameter A and the configuration parameter B, respectively, and the UPF executes the actions specified in the configuration parameter A and the configuration parameter B respectively, that is, mainly user plane packet processing.
  • the other network elements may be other types of control plane network elements other than SMF in the 5G network architecture, or other new network elements introduced with the evolution of the 5G architecture.
  • the UPF's processing of packets based on the configuration parameter A and the processing of the packets based on the configuration parameter B are run in isolation, that is, for different control plane network elements to control the UPF, the UPF is different. message interface.
  • the rules for packet processing in the configuration parameter A and the configuration parameter B may be the same or different, which is not limited in this application.
  • both the configuration parameter A and the configuration parameter B may include one of the following: a packet detection rule (Packet Detection Rule, PDR), a quality of service enforcement rule (Quality of Service Enforcement Rule, QER), a usage reporting rule ( Usage Reporting Rule, URR), multi-access rule (Multi-Access Rule, MAR) and forwarding action rule (Forwarding Action Rule, FAR), these five types of rules are UPF rules for packet processing, all from SMF configuration. In the logic of processing packets in UPF, PDR and FAR are required packet processing rules, and others are optional.
  • PDR Packet Detection Rule
  • QER Quality of Service Enforcement Rule
  • URR Usage Reporting Rule
  • MAR multi-access Rule
  • FAR Forwarding Action Rule
  • the PDR is used to indicate that when receiving a packet from the outside, the UPF uses the PDR to match the information in the packet, such as using the IP address in the packet header. Only when a certain PDR matches the information of the packet, the packet will continue to be processed according to the actions specified in the configuration parameters; otherwise, the packet will be discarded.
  • the FAR is used to instruct the UPF how to process the message.
  • the defined actions include: forwarding, buffering, discarding, copying, and so on.
  • a FAR is associated with a PDR, that is, if the information of the packet matches the PDR, the FAR associated with the PDR is executed.
  • a possible implementation manner includes: the SMF initiates an N4 association establishment request to the UPF; the UPF sends an N4 association establishment response to the SMF.
  • the establishment of a connection at the device granularity is the first step in establishing communication between the SMF and the UPF, and this step is used for the SMF to obtain information such as the identifier, capability, and load status of the UPF.
  • a possible implementation includes: the SMF triggers the establishment of a Packet Data Unit (PDU) session or relocates the UPF; the SMF initiates an N4 session establishment request to the UPF; the UPF sends an N4 session establishment response to the SMF; SMF and other network functions interaction.
  • PDU Packet Data Unit
  • the SMF can configure session-granularity packet processing rules for the UPF only after a device-granularity connection is established. It should be noted here that the protocol used by the SMF to control the UPF is the Packet Forwarding Control Protocol (PFCP) protocol.
  • PFCP Packet Forwarding Control Protocol
  • the UPF is generally relayed through the SMF to realize the control of the UPF, that is, the SMF will combine the control requests of other network elements with its own service logic to realize the configuration of the UPF.
  • IP 5-tuple including source IP address, destination IP address, protocol number, source port, and destination port.
  • PFD Packet Flow Detection
  • the AF hopes to configure the PFD on the UPF to identify the packets related to the server AF.
  • the current configuration process is that the AF first sends the PFD to the SMF, and then the SMF configures the PFD to the UPF, so that the server AF can control the UPF.
  • a possible implementation includes: when the SMF receives an AF configuration request, triggering to provide or delete a PFD set belonging to an application ID; the SMF sends a PFD management request to the UPF; and the UPF sends a PFD management response to the SMF.
  • the embodiments of the present application describe various embodiments in conjunction with core network equipment, wherein the functions of the core network are mainly to provide user connection, user management, and service bearer, as the bearer network provides an interface to an external network.
  • the establishment of a user connection includes functions such as mobility management (Mobile Management, MM), call management (Connection Management, CM), switching/routing, and recording notification.
  • User management includes user description, quality of service (QoS), user communication records (accounting), virtual home environment (Virtual Home Environment, VHE) and security (corresponding security measures provided by the authentication center include security for mobile services) management and security handling of access to external networks).
  • Bearer connections include access to external public switched telephone networks (PSTNs), external circuit data networks and packet data networks, the internet and intranets, and mobile phone text messages from the mobile network itself Service (Short Message Service, SMS) server and so on.
  • PSTNs public switched telephone networks
  • SMS Short Message Service
  • the basic services that the core network can provide include mobile office, e-commerce, communications, entertainment services, travel and location-based services, telemetry, simple messaging (monitoring and control), and so on.
  • the core network device may include: access and mobility management function AMF, session management function SMF, policy control function PCF, user plane function UPF and other functional units, these functional units can work independently, or can be combined in Some control functions are realized together, such as: AMF, SMF and PCF can be combined as a management device to complete access control and mobility management functions such as access authentication, security encryption, location registration of terminal devices, and user Session management functions such as establishment, release, and modification of plane transmission paths, as well as functions of analyzing some slice-related data (such as congestion) and terminal equipment-related data.
  • the embodiments of the present application are applied to a communication system including at least one forwarding device and multiple core network devices.
  • the following describes in detail how other network elements control the UPF in the embodiments of the present application with reference to the accompanying drawings.
  • the embodiments of the present application may include implementing SMF-controlled UPF, PCF-controlled UPF, NWDAF-controlled UPF, and the like.
  • UPF mainly provides service processing functions of the user plane, including service routing, packet forwarding, anchoring function, QoS mapping and execution, uplink identification and routing to the data network, downlink packet buffering and downlink data.
  • Incoming notification triggers, connection to external data network, etc.
  • the present application takes the apparatuses SMF and UPF as examples to describe the method for controlling the UPF by the non-SMF type control plane network element.
  • the SMF described later in this application can be replaced by a session management function network element, and the UPF can be replaced by a user plane function network element.
  • the device is a chip in an SMF or a chip in a UPF entity, reference may be made to the specific description that the device is a SMF entity and a UPF entity, and the description will not be repeated.
  • FIG. 3 is a schematic diagram of an example of a communication method to which the present application is applied. As shown in Figure 3, the implementation step 300 includes:
  • the session management function network element acquires the interface identifier.
  • acquiring the interface identifier may include: the session management function network element determines the interface identifier by itself, where the interface identifier corresponds to the first network element. That is to say, the session management function network element assigns an interface identifier to the user plane function network element based on the communication establishment of the device granularity, and sends the interface identifier to the user plane function network element through the following steps, so as to inform the user plane function network element of the interface identifier. The element configures the interface corresponding to the first network element.
  • the first network element refers to a network element of a non-session management function type.
  • the first network element may be an access management function AMF, a network data analysis function NWDAF, a policy control function PCF, a group management function GMF, a network opening function NEF, a unified data management UDM, a media function MF, a network registration function NRF, Authentication server function AUSF, binding support function BSF, network data analysis NWDA and other different types of control plane functions CPF network elements.
  • the interface corresponding to the interface identifier is a newly added packet interface of the user plane functional network element, including packet egress and/or packet entry.
  • acquiring the interface identifier may further include: the session management function network element receives the interface identifier from the user plane function network element, that is, the user plane function network element allocates the interface identifier by itself, and The interface identifier is sent to the session function management network element, where the interface identifier corresponds to the first network element.
  • the session management function network element may send first information to the user plane function network element, where the first information is used to instruct the user plane function network element to assign the above-mentioned interface identifier, that is, a new message
  • the interface corresponds to the first network element.
  • the first information may include one of the following: the identifier of the first network element, or the address of the first network element; a codeword (codeword), service requirements and service types of the first network element; or, a message Data size, whether the message is encrypted, etc.
  • the address of the first network element may include an IP address and a media access control address (Media Access Control Address, MAC) of the first network element.
  • the session management function network element may determine, according to the first information, user plane function network elements that the first network element can control. Among them, the code word can be used as a kind of password for mutual detection between multiple devices.
  • the user plane function network element may send capability indication information to the session management function network element, where the capability indication information is used to indicate that the user plane function network element can be used by one or more network elements of the first type. Meta control. It should be noted that the network element of the first type is a network element of a non-session management function type.
  • the capability indication information may include: the user plane function network element reports charging information, time, etc. to a device other than the SMF type, such as: a charging function (Charging Function, CHF) network element; or a user plane function
  • the network element reports the user service status analysis to devices other than the SMF type, such as the network data analysis function NWDAF network element.
  • the user service status analysis includes at least one of: whether the traffic is abnormal, whether the degree of delay change caused by network congestion is severe, and whether the delay satisfies the service experience and other functions.
  • the capability indication information may indicate a specific type of device to which the user plane function network element can report.
  • the first network element may send a request message to the session management function network element, where the request message is used to request to control the user plane function network element.
  • the first network element may select the session management function network element based on at least one of the coverage area of the service, the camping area of the UE, and the jurisdiction of the first network element.
  • the request message may include at least one of the following: the identifier of the user plane function network element (UPF ID), the service area (service area) covered by the user plane function network element, and the session identifier of the user equipment (UE session ID) .
  • UPF ID the identifier of the user plane function network element
  • service area service area covered by the user plane function network element
  • session ID session identifier of the user equipment
  • the request message sent by the first network element includes the UPF ID, it means that the first network element explicitly informs the session management function network element which user plane function network element it wants to control. At this time, the session management function network element will The corresponding user plane function network element can be found out.
  • the first network element may not know which user plane function network element corresponds to the first network element.
  • the session management function network element can find one or more user plane function network elements in the service area, and select one of the user plane network elements to be controlled by the first network element.
  • the session management function network element manages the user plane management network element corresponding to the specific session. Just find out.
  • the UE session ID also known as the identifier of the PDU session, or the session ID, the session identifier
  • the session ID is used to mark a session of a user equipment, and the session of the user equipment is composed of one or more user plane function networks.
  • the meta is responsible for implementing the user plane connection of the session. Therefore, the UE session ID can be associated with one or more user plane functional network elements.
  • the session management function network element sends the address and interface identifier of the user plane function network element to the first network element, and correspondingly, the first network element receives the address and interface identifier of the user plane function network element from the session management function network element.
  • the interface identifier is used by the first network element to determine the interface corresponding to the interface identifier, and the interface corresponding to the address of the user plane function network element and the interface identifier is used by the first network element to control the user plane function network element.
  • the user plane management network element can flexibly interact with the first network element device, and does not need to be forwarded by the session management function network element, reducing signaling. forwarding delay.
  • the session management function network element may also send at least one of an identifier (UPF ID) and a codeword (codeword) of the user plane management network element to the first network element.
  • UPF ID an identifier
  • codeword codeword
  • the first network element sends the packet detection rule PDR and the packet processing rule (Packet Handle Rule, PHR) to the user plane management network element.
  • the user plane functional network element receives the packet detection rule PDR from the first network element and the packet processing rule PHR.
  • packet processing rules PHR may include quality of service enforcement rules QER, usage reporting rules URR, multi-access rules MAR and forwarding action rules FAR, etc.
  • QER quality of service enforcement rules
  • URR usage reporting rules
  • MAR multi-access rules
  • FAR forwarding action rules
  • the first network element may also send a codeword to the user plane management network element.
  • the code word can be used as a kind of password for mutual detection between multiple devices.
  • the user plane functional network element receives downlink/uplink packets.
  • the user equipment UE sends an uplink message to the user plane functional network element, and/or the data network DN sends a downlink message to the user plane functional network element; correspondingly, the user plane functional network element receives the uplink message from the user equipment UE message, and/or receive downlink messages from the data network DN.
  • uplink message/downlink message can be performed through radio resource control (Radio Resource Control, RRC) signaling, media access control management unit (Media Access Control, Control Element, MAC CE), physical layer signaling (for example: PDCCH) in at least one way.
  • RRC Radio Resource Control
  • MAC CE media access control management unit
  • PDCCH physical layer signaling
  • the user plane functional network element detects uplink/downlink packets according to the packet detection rule PDR, and processes the uplink/downlink packets according to the packet processing rule PHR.
  • FIG. 4 is a schematic diagram showing an example of internal processing logic when a user plane functional network element receives a packet in from the outside.
  • the user plane function network element may include two layers of interfaces, for example, the first layer interface and the second layer interface, the external packet #1 first passes through the first layer interface, and then the user plane function network element will copy the The packet #1 goes to the Layer 2 interface. Assume that the Layer 2 interface of the user plane function network element has two pairs of packet entry and exit.
  • Packet entry and exit #A is used for the session function management network element (for example: SMF network element) to control the user plane function network element.
  • the packet entrance and exit #B is used for the first network element (for example: NWDAF network element) to control the user plane function network element. That is, the user plane management network element copies the packet #1 to the packet entry #A and the packet entry #B respectively, detects the packet #1 according to the PDR#A of the packet entry #A, and detects the packet #1 according to the packet entry #A.
  • the PDR#B of #B detects the packet #1, for example, by using the IP address in the packet header.
  • the user plane function NE detects the packet #1 according to the packet processing rule PDR#A and the packet processing rule PDR#B respectively, it detects from two different entrances, namely, the packet entrance# A and packet entry #B, these two packet entries are isolated, and the user plane function NE processes the same packet #1 in parallel through these two packet entries.
  • packet egress #A and packet egress #B are also isolated. That is to say, each control plane NE installed on the user plane functional NE has an independent packet interface.
  • the user plane functional NE isolates the SMF NE and the NWDAF NE respectively configured with the rule parameter PDR#A and PDR#B.
  • the packet detection rule #A and the packet detection rule #B may be the same or different, which is not limited in this application.
  • the packet detection rule PDR#B matches the packet #1, it means that the packet #1 corresponds to the NWDAF network element.
  • the user plane function network element executes the corresponding packet processing rule for the packet #1.
  • PHR#B such as forwarding, copying, etc., so as to realize the NWDAF network element to control the user plane management function network element.
  • the above-mentioned packet processing rule PHR may include MAR, FAR, QER, URR, etc.
  • the packet entry and the packet exit may exist simultaneously or independently, which is not limited in this application.
  • the NWDAF network element executes the packet detection rule #B and the packet processing rule #B on the packet #1, so that the NWDAF network element can control the user plane function network element.
  • the user plane functional network elements can process the same data packet in parallel based on the packet detection rule #A corresponding to the SMF network element and the packet detection rule #B corresponding to the NWDAF network element, respectively.
  • the user plane functional network elements are separated from the different configurations of the SMF network element and the NWDAF network element, thereby enabling different types of controllers to control the same user plane functional network element.
  • FIG. 5 is a schematic diagram of a method for controlling UPF#A by a control plane network element #A in a core network according to an embodiment of the present application.
  • UPF#A take UPF#A's own determination of the interface identifier corresponding to network element #A as an example, where UPF#A is used as a forwarding device, SMF#A is used as a control device, and network element #A can be a computer in the core network.
  • Other control plane network elements such as the network element CHF with the charge function, the network element with the policy control function PCF, and the NWDAF.
  • the implementation step 500 includes:
  • UPF#A ie, an example of a user plane function network element
  • SMF#A ie, an example of a session management function network element
  • SMF#A receives the capability from UPF#A Indication information #A.
  • the capability indication information #A is used to indicate that the UPF #A can be controlled by other types of network elements (eg, network element #A).
  • network element #A is a non-session management function type network element.
  • the type of the network element #A may include: AMF, NWDAF, PCF, GMF, NEF, UDM, MF, NRF, AUSF, BSF, NWDA and other different types of control plane function CPF network elements.
  • the capability indication information may include: the user plane functional network element reports charging information, time, etc. to devices other than the SMF type, such as the charging function CHF network element; or the user plane functional network element reports the user service Status analysis is reported to devices other than SMF types, such as: network data analysis function NWDAF network element, etc.
  • the analysis of user service status includes: whether the traffic is abnormal, whether the degree of delay change caused by network congestion is severe, whether the delay meets at least one of the functions such as service experience.
  • the network element #A (ie, an example of the first network element) sends the request message #A to the SMF #A, and accordingly, the SMF #A receives the request message #A from the network element #A.
  • the request message #A is used by the network element #A to request to control the UPF #A.
  • the network element #A may select the SMF #A based on at least one of the coverage area of the service, the camping area of the UE, and the jurisdiction of the network element #A.
  • the request message #A may include at least one of the following: identification information (UPF ID) of UPF #A, a service area (service area) covered by UPF #A, and a session identifier (UE session ID) of the user equipment.
  • UPF ID identification information
  • service area service area covered by UPF #A
  • UE session ID session identifier
  • SMF#A determines the UPF#A used for the control of network element #A according to the received request message #A.
  • the request message #A sent by network element #A includes the service area covered by UPF #A, for network element #A, it may not know which UPF network element corresponds to this network element #A. At this time, SMF#A can find one or more UPF network elements in the service area, and select one of the UPF#A network elements to be controlled by network element #A.
  • the request message #A sent by the network element #A includes the UE session ID, it means that the network element #A wishes to control a specific session of a user equipment.
  • SMF#A will send the UPF#A network element corresponding to the specific session. Just find out.
  • the UE session ID also known as the identifier of the PDU session, or the session ID, the session identifier
  • the session ID is used to mark a session of a user equipment
  • the session of the user equipment is composed of one or more user plane function networks.
  • the meta is responsible for implementing the user plane connection of the session. Therefore a UE session ID can be associated with one or more UPFs.
  • SMF#A sends the first information #A to UPF#A, and accordingly, UPF#A receives the first information #A from SMF#A.
  • the first information #A is used to instruct the UPF #A to allocate an interface identifier corresponding to the network element #A, that is, a new message interface, and the message interface corresponds to the network element #A. That is to say, at this time, UPF#A can have two sets of packet interfaces, one for SMF#A and the other for NE #A.
  • the first information #A may include one of the following: the identifier of network element #A, or the address of network element #A; a codeword (codeword), service requirements and service type of network element #A; or, Packet data size, whether the packet is encrypted, etc.
  • the address of the network element #A may include the IP address and the media access control address MAC of the network element #A.
  • the SMF#A can determine the controllable UPF#A for the network element #A according to the first information #A.
  • the code word can be used as a kind of password for mutual detection between multiple devices.
  • UPF#A determines the interface identifier corresponding to network element #A, and sends the interface identifier to SMF#A, and accordingly, SMF#A receives the interface identifier from UPF#A.
  • the interface identifier corresponds to network element #A.
  • SMF#A sends the address and interface identifier of UPF#A to network element #A, and correspondingly, network element #A receives the address and interface identifier of UPF#A from SMF#A.
  • the interface identifier is used by the network element #A to determine the interface corresponding to the interface identifier, and the interface corresponding to the address of the UPF#A and the interface identifier is used by the network element #A to control the UPF#A network element.
  • the interface corresponding to the interface identifier is the newly added packet interface of the UPF#A network element, including the packet exit and/or the packet entry.
  • the SMF#A may also send at least one of an identifier (UPF ID) and a codeword (codeword) of the UPF#A to the network element #A.
  • UPF ID an identifier
  • codeword codeword
  • the network element #A sends the packet detection rule PDR and the packet processing rule PHR corresponding to the network element #A to the UPF #A.
  • the UPF #A receives the packet detection rule PDR and the packet from the network element #A Processing rule PHR.
  • packet processing rules PHR may include quality of service enforcement rules QER, usage reporting rules URR, multi-access rules MAR and forwarding action rules FAR, etc.
  • QER quality of service enforcement rules
  • URR usage reporting rules
  • MAR multi-access rules
  • FAR forwarding action rules
  • the network element #A may also send a codeword to the UPF #A.
  • the code word can be used as a kind of password for mutual detection between multiple devices.
  • UPF#A installs the packet detection rule PDR at the entry of the newly added packet, and/or installs the packet processing rule PHR at the exit of the newly added packet.
  • the newly added message exit and/or the newly added message entry both correspond to network element #A.
  • the packet detection rule PDR corresponds to the newly added packet entry, that is, the PDR is used to instruct UPF#A to detect the packet information associated with network element #A. If the packet is related to the user's IP address, the packets related to the specific user's IP address in the UPF#A match are sufficient.
  • the message processing rule PHR corresponds to the newly added message export, that is, the PHR is used to instruct UPF#A to which corresponding controller to send the processed message.
  • the PHR may also include other additional processing information, for example, used to indicate the granularity in which the UPF#A performs information statistics, and the like.
  • UE sends an uplink packet to UPF#A through an interface corresponding to network element #A, and accordingly, UPF#A receives an uplink data packet from user equipment UE through an interface corresponding to network element #A.
  • the data network DN sends a downlink data packet to the UPF#A through the interface corresponding to the network element #A, and accordingly, the UPF#A receives the downlink data packet from the data network DN through the interface corresponding to the network element #A.
  • uplink messages and/or downlink messages in steps S581 and S582 may be transmitted by at least one of radio resource control RRC signaling, medium access control management unit MAC CE, and physical layer signaling.
  • UPF#A detects the uplink packet and/or the downlink packet according to the packet detection rule PDR, and processes the uplink packet and/or the downlink packet according to the packet processing rule PHR.
  • the number of message interfaces depends on the number of controllers requesting to control UPF#A, that is, one controller corresponds to a pair of message interfaces of UPF#A.
  • the SMF#A network element instructs the UPF#A to allocate the newly added packet interface corresponding to the network element #A, and the UPF#A sends the newly added interface identifier to the SMF#A, so that the non-SM#A type Other types of control plane network elements can control the UPF#A.
  • UPF#A can isolate different configuration parameters of SMF#A network element and network element #A, realize parallel processing of the same data packet, and then realize that different types of multi-controllers control the same UPF#A.
  • FIG. 6 is a schematic diagram of a method for controlling UPF #a by a control plane network element #a in a core network according to an embodiment of the present application.
  • this implementation takes SMF#a assigning an interface identifier to UPF#a as an example.
  • the main difference from the above step 500 is that SMF #a may not send the first information to UPF #a, and SMF #a may determine the interface identification information corresponding to network element #a by itself, and send the interface identification to UPF #a.
  • the implementation step 600 includes:
  • UPF#a ie, an example of a user plane function network element
  • SMF#a ie, an example of a session management function network element
  • SMF#a receives the capability from UPF#a Indication information #a.
  • the network element #a (ie, an example of the first network element) sends the request message #a to the SMF #a, and correspondingly, the SMF #a receives the request message #a from the network element #a.
  • the SMF #a determines the UPF #a used for the control of the network element #a according to the request message #a.
  • steps S610 to S630 reference may be made to the descriptions of the foregoing steps S510 to S530, which are not repeated here for brevity.
  • SMF#a determines the interface identifier corresponding to the network element #a, that is, SMF#a adds a new interface identifier for the UPF#a distribution packet, and the interface identifier is used by the network element #a to determine the interface corresponding to the interface identifier.
  • a new message interface is added for NE #a to control UPF#a. The newly added message interface identifier corresponds to the network element #a.
  • SMF#a determines the interface identifier corresponding to NE #a based on the device granularity connection between SMF#a and UPF#a. Therefore, SMF#a has a The number information, identification information, etc. of the message interface) is determined, and the SMF#a can realize the allocation of the newly added message interface identifier for the UPF#a.
  • SMF#a sends the interface identifier to UPF#a, and correspondingly, UPF#a receives the interface identifier from UPF#a, where the interface identifier corresponds to network element #a.
  • S660, SMF#a sends the address and interface identifier of UPF#a to network element #a, and correspondingly, network element #a receives the address and interface identifier of UPF#a from SMF#a.
  • the network element #a sends the packet detection rule PDR and the packet processing rule PHR corresponding to the network element #a to the UPF #a.
  • the UPF #a receives the packet detection rule PDR and the packet from the network element #a Processing rule PHR.
  • the network element #a is a network element of a non-session management function type.
  • UPF#a installs the packet detection rule PDR at the entry of the newly added packet, and/or installs the packet processing rule PHR at the packet exit.
  • the newly added message exit and the newly added message entry both correspond to network element #a.
  • the UE sends an uplink packet to UPF#a through an interface corresponding to network element #a, and accordingly, UPF#a receives an uplink data packet from the user equipment UE through an interface corresponding to network element #a.
  • the data network DN sends a downlink data packet to the UPF #a through the interface corresponding to the network element #a, and accordingly, the UPF #a receives the downlink data packet from the data network DN through the interface corresponding to the network element #a.
  • UPF#a detects the upstream message and/or the downstream message according to the message detection rule PDR, and processes the upstream message and/or the downstream message according to the message processing rule PHR.
  • steps S660 to S693 reference may be made to the descriptions of the foregoing steps S550 to S590, which are not repeated here for brevity.
  • the interface identifier of the newly added message corresponding to the network element #a is determined by the UPF#a, and the identifier of the newly added message interface is sent to the SMF#a, so that other types of control planes other than SM#a
  • the network element controls the UPF#a.
  • UPF#a can isolate different configuration parameters of SMF#a network element and network element #a, realize parallel processing of the same data packet, and further realize that different types of multi-controllers control the same UPF#a.
  • FIG. 7 is a schematic diagram of a communication apparatus 10 (which may also be a network device, such as SMF#A) applicable to this embodiment of the present application.
  • the communication device 10 includes: a transceiver unit 11 and a processing unit 12 .
  • the processing unit 12 is used to obtain the interface identifier.
  • the transceiver unit 11 is configured to send the address and interface identifier of the user plane function network element to the first network element, where the interface identifier is used by the first network element to determine the interface corresponding to the interface identifier, the address and interface of the user plane function network element The identifier is used by the first network element to control the user plane function network element.
  • the communication apparatus 10 may correspond to the session function management network element in the method 300/500/600 of the method 300/500/600 for the first network element to control the user plane function management network element according to the embodiment of the present application, and the communication apparatus 10 may include a method for executing A module (or unit) of a method performed by a network device in the method 300/500/600 of the method 300/500/600 for the first network element to control the user plane function management network element in FIG. 3/FIG. 5/FIG.
  • each module (or unit) and the above-mentioned other operations and/or functions in the communication device 10 are used to implement the method 300/500 of the first network element controlling the user plane function in FIG. 3/FIG. 5/FIG. 6, respectively, for managing network elements /600 corresponding process.
  • the transceiver unit 11 is configured to execute S320 in the methods 300/500/600, or S510, S520, S540, S541 and S550, or S610, S620, S650 and S660;
  • the processing unit 12 is configured to execute the methods 300/500/ S310 in 600, or S530, or S630 and S640.
  • the process of each module (or unit) performing the above-mentioned corresponding steps has been described in detail in the methods 300/500/600, and for the sake of brevity, it will not be repeated here.
  • FIG. 7 It should be understood that the structure of the apparatus 10 illustrated in FIG. 7 is only a possible form, and should not constitute any limitation to the embodiments of the present application. This application does not exclude the possibility of other forms of network equipment that may appear in the future.
  • the communication apparatus 10 may correspond to the first network element in the foregoing method embodiments to control the network equipment of the user plane function network element, and the above and other aspects of each module (or unit) in the communication apparatus 10 may be controlled
  • the management operations and/or functions are respectively to implement the corresponding steps of the foregoing methods, so the beneficial effects in the foregoing method embodiments can also be realized.
  • FIG. 8 is a schematic diagram of a communication apparatus 20 (which may also be a network device, such as UPF#A) applicable to this embodiment of the present application.
  • the communication device 20 includes: a transceiver unit 21 and a processing unit 22 .
  • the transceiver unit 21 is configured to receive a packet detection rule and a packet processing rule corresponding to the first network element from a first network element, where the first network element is a network element of a non-session management function type.
  • the transceiver unit 21 is further configured to receive packets through the interface corresponding to the first network element.
  • the processing unit 22 is configured to detect the message according to the message detection rule, and process the message according to the message processing rule.
  • the communication apparatus 20 may correspond to the user plane function network element in the method 300/500/600 for the first network element to control the user plane function network element according to the embodiment of the present application, and the communication apparatus 20 may include a method for executing the diagram 3/ The module (or unit) of the method performed by the network device of the method 300/500/600 for the first network element to control the user plane function network element in FIG. 5/ FIG. 6 .
  • each module (or unit) and the above-mentioned other operations and/or functions in the communication device 20 are respectively for realizing the method 300/500/ of the first network element in FIG. 3/FIG. 5/FIG. 6 controlling the user plane function network element. 600 corresponding process.
  • the transceiving unit 21 is configured to perform S330 and S340 in the methods 300/500/600, or S510, S540, S541, S560 and S581 and S582, or S610, S650, S670, S691 and S692;
  • the processing unit 22 is configured to Perform S350, or S570 and S590, or S680 and S693 in the method 300/500/600.
  • the process of each module (or unit) performing the above-mentioned corresponding steps has been described in detail in the methods 300/500/600, and for the sake of brevity, it will not be repeated here.
  • FIG. 8 It should be understood that the structure of the apparatus 20 illustrated in FIG. 8 is only a possible form, and should not constitute any limitation to the embodiments of the present application. This application does not exclude the possibility of other forms of network equipment that may appear in the future.
  • the communication apparatus 20 may correspond to the first network element in the foregoing method embodiments to control the network equipment of the user plane function network element, and the above and other aspects of each module (or unit) in the communication apparatus 20 may be controlled
  • the management operations and/or functions are respectively to implement the corresponding steps of the foregoing methods, so the beneficial effects in the foregoing method embodiments can also be realized.
  • processing module in the embodiments of the present application may be implemented by a processor
  • transceiver module or unit
  • transceiver may be implemented by a transceiver
  • FIG. 9 is a schematic diagram of a communication apparatus 30 (which may also be a network device, such as network element #A) applicable to this embodiment of the present application.
  • the communication device 30 includes: a transceiver unit 31 and a processing unit 32 .
  • the transceiver unit 31 is configured to receive the address and interface identifier of the user plane function network element from the session management function network element;
  • the processing unit 32 is configured to determine the interface corresponding to the interface identifier according to the interface identifier;
  • the processing unit 32 is further configured to control the user plane function network element according to the interface corresponding to the address of the user plane function network element and the interface identifier; the transceiver unit 31 is further configured to send a message corresponding to the first network element to the user plane function network element
  • the packet detection rules and packet processing rules are based on the packet detection rules and packet processing rules, wherein the first network element is a network element of a non-session management function type.
  • the communication apparatus 30 may correspond to other types of control plane network elements of a non-session management function type in the method 300/500/600 for the first network element to control a user plane function network element according to the embodiment of the present application, and the communication The apparatus 30 may include a module (or unit) for performing the method performed by the network device of the method 300/500/600 of the first network element controlling the user plane function network element in FIG. 3/FIG. 5/FIG. 6.
  • each module (or unit) and the above-mentioned other operations and/or functions in the network device 30 are respectively to implement the method 300/500/ of the first network element in FIG. 3/FIG. 5/FIG. 6 to control the user plane function network element. 600 corresponding process.
  • the transceiver unit 31 is configured to perform S320 and S330, or S520, S550 and S560, or S620, S660 and S670 in the methods 300/500/600.
  • the process of each module (or unit) performing the above-mentioned corresponding steps has been described in detail in the methods 300/500/600, and for the sake of brevity, it will not be repeated here.
  • the communication apparatus 30 may correspond to the first network element in the foregoing method embodiments to control the network equipment of the user plane function network element, and the above and other aspects of the various modules (or units) in the communication apparatus 30 may be controlled
  • the management operations and/or functions are respectively to implement the corresponding steps of the foregoing methods, so the beneficial effects in the foregoing method embodiments can also be realized.
  • processing module in the embodiments of the present application may be implemented by a processor
  • transceiver module or unit
  • transceiver may be implemented by a transceiver
  • FIG. 10 is a schematic diagram of a communication device (also referred to as a network device) 40 provided by an embodiment of the present application.
  • the device 40 may be a network device (eg, SMF) or a chip Or a circuit, such as a chip or circuit that can be provided in a network device.
  • a network device eg, SMF
  • a chip or circuit such as a chip or circuit that can be provided in a network device.
  • the apparatus 40 may include a processor 41 (ie, an example of a processing unit) and a memory 42 .
  • the memory 42 is used for storing instructions
  • the processor 41 is used for executing the instructions stored in the memory 42, so that the apparatus 40 implements the network device (for example, SMF) in the above method (for example, the method 300 or the method 500 or the method 600). steps to perform.
  • the network device for example, SMF
  • the device 40 may also include an input port 43 (ie, an example of a communication unit) and an output port 44 (ie, another example of a communication unit). It should be understood that the processor 41, the memory 42, the input port 43 and the output port 44 can communicate with each other through an internal connection path to transmit control and/or data signals.
  • an input port 43 ie, an example of a communication unit
  • an output port 44 ie, another example of a communication unit.
  • the processor 41, the memory 42, the input port 43 and the output port 44 can communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory 42 is used to store a computer program, and the processor 41 can be used to call and run the computer program from the memory 42 to control the input port 43 to receive signals, and control the output port 44 to send signals to complete the network device in the above method. A step of.
  • the memory 42 may be integrated in the processor 41 or may be provided separately from the processor 41 .
  • the input port 43 is a receiver
  • the output port 44 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 43 is an input interface
  • the output port 44 is an output interface
  • the functions of the input port 43 and the output port 44 can be considered to be realized by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 41 can be considered to be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.
  • a general-purpose computer may be used to implement the network device provided in the embodiments of the present application.
  • the program codes that will implement the functions of the processor 41 , the input port 43 and the output port 44 are stored in the memory 42 , and the general-purpose processor implements the functions of the processor 41 , the input port 43 and the output port 44 by executing the codes in the memory 42 .
  • the processor 41 is configured to acquire the interface identifier.
  • the output port 44 is used to send the address and interface identifier of the user plane function network element to the first network element, the interface identifier is used by the first network element to determine the interface corresponding to the interface identifier, the address and interface of the user plane function network element The identifier is used by the first network element to control the user plane function network element.
  • the apparatus 40 is configured in or is itself a session management function entity SMF.
  • modules or units in the apparatus 40 listed above are only exemplary descriptions, and the modules or units in the apparatus 40 may be used to perform actions or processes performed by the network equipment in the above method 300 or 500 or 600 For the process, here, in order to avoid redundant description, the detailed description thereof is omitted.
  • the processor 41 may perform the actions performed by the SMF in the above S530 or S630 and S640.
  • SoC system-on-chip
  • all or part of the functions of the device 40 are implemented by SoC technology, for example, by a network device function chip, the network device
  • the function chip integrates a processor, a memory, a communication interface and other devices, and the program related to the network equipment functions is stored in the memory, and the processor executes the program to realize the related functions of the base station.
  • the network device function chip can also read the external memory of the chip to realize the related functions of the base station.
  • FIG. 11 is a schematic diagram of a communication device (also referred to as a network device) 50 provided by an embodiment of the present application.
  • the device 50 may be a network device (for example, UPF) or a chip Or a circuit, such as a chip or circuit that can be provided in a network device.
  • the apparatus 50 may include a processor 51 (ie, an example of a processing unit) and a memory 52 .
  • the memory 52 is used for storing instructions
  • the processor 51 is used for executing the instructions stored in the memory 52, so that the apparatus 50 implements the network device (for example, UPF) in the above method (for example, the method 300 or the method 500 or the method 600 ). steps to perform.
  • the network device for example, UPF
  • the apparatus 50 may further include an input port 53 (ie, an example of a communication unit) and an output port 54 (ie, another example of a communication unit). It should be understood that the processor 51, the memory 52, the input port 53 and the output port 54 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • an input port 53 ie, an example of a communication unit
  • an output port 54 ie, another example of a communication unit.
  • the processor 51, the memory 52, the input port 53 and the output port 54 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory 52 is used to store a computer program, and the processor 51 can be used to call and run the computer program from the memory 52 to control the input port 53 to receive signals, control the output port 54 to send signals, and complete the network device in the above method. A step of.
  • the memory 52 may be integrated in the processor 51 or may be provided separately from the processor 51 .
  • the input port 53 is a receiver
  • the output port 54 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 53 is an input interface
  • the output port 54 is an output interface
  • the functions of the input port 53 and the output port 54 can be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 51 can be considered to be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.
  • a general-purpose computer may be used to implement the network device provided by the embodiments of the present application.
  • the program codes that will implement the functions of the processor 51 , the input port 53 and the output port 54 are stored in the memory 52 .
  • the input port 53 is used to receive a packet detection rule and a packet processing rule corresponding to the first network element from the first network element, where the first network element is a network element with a non-session management function type .
  • the input port 53 is also used for receiving packets through the interface corresponding to the first network element.
  • the processor 51 is configured to detect the message according to the message detection rule, and process the message according to the message processing rule.
  • the apparatus 50 is configured in or is a user plane functional entity UPF.
  • modules or units in the apparatus 50 listed above are only exemplary descriptions, and the modules or units in the apparatus 50 can be used to perform actions or processes performed by the network equipment in the above method 300 or 500 or 600 For the process, here, in order to avoid redundant description, the detailed description thereof is omitted.
  • the processor 51 may perform the actions performed by the UPF in the above-mentioned S350, or S570 and S590, or S680 and S693.
  • SoC system-on-chip
  • all or part of the functions of the device 50 are implemented by SoC technology, for example, by a network device function chip
  • the network device The function chip integrates a processor, a memory, a communication interface and other devices, and the program related to the network equipment functions is stored in the memory, and the processor executes the program to realize the related functions of the base station.
  • the network device function chip can also read the external memory of the chip to realize the related functions of the base station.
  • FIG. 11 the structure of the apparatus 50 illustrated in FIG. 11 is only a possible form, and should not constitute any limitation to the embodiments of the present application. This application does not exclude the possibility of other forms of base station structures that may appear in the future.
  • FIG. 12 is a schematic diagram of a communication device (also referred to as a network device) 60 provided by an embodiment of the present application.
  • the device 60 may be a network device (for example, other network element other NF), It can also be a chip or circuit, such as a chip or circuit that can be provided in a network device.
  • the apparatus 60 may include a processor 61 (ie, an example of a processing unit) and a memory 62 .
  • the memory 62 is used for storing instructions
  • the processor 61 is used for executing the instructions stored in the memory 62, so that the apparatus 60 implements the network device (for example, other network devices) in the above method (for example, the method 300 or the method 500 or the method 600). element) steps to perform.
  • the device 60 may also include an input port 63 (ie, an example of a communication unit) and an output port 64 (ie, another example of a communication unit). It should be understood that the processor 61, the memory 62, the input port 63 and the output port 64 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • an input port 63 ie, an example of a communication unit
  • an output port 64 ie, another example of a communication unit.
  • the processor 61, the memory 62, the input port 63 and the output port 64 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory 62 is used to store a computer program, and the processor 61 can be used to call and run the computer program from the memory 62 to control the input port 63 to receive signals, control the output port 64 to send signals, and complete the network device in the above method. A step of.
  • the memory 62 can be integrated in the processor 61 or can be provided separately from the processor 61 .
  • the input port 63 is a receiver
  • the output port 64 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the input port 63 is an input interface
  • the output port 64 is an output interface
  • the functions of the input port 63 and the output port 64 can be considered to be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processor 61 can be considered to be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.
  • a general-purpose computer may be used to implement the network device provided in the embodiments of the present application.
  • the program codes to realize the functions of the processor 61 , the input port 63 and the output port 64 are stored in the memory 62 , and the general-purpose processor implements the functions of the processor 61 , the input port 63 and the output port 64 by executing the codes in the memory 62 .
  • the input port 63 is used to receive the address and interface identifier of the user plane function network element from the session management function network element;
  • the processor 61 is configured for the first network element to determine the interface corresponding to the interface identifier according to the interface identifier,
  • the processor 61 is further configured for the first network element to control the user plane function network element according to the address of the user plane function network element and the interface corresponding to the interface identifier.
  • the output port 64 is used to send the packet detection rule and the packet processing rule corresponding to the first network element to the user plane functional network element, where the first network element is a network element of a non-session management function type.
  • the device 60 is configured in or is itself a controller of other types than the SMF type.
  • each module or unit in the above-listed apparatus 60 is merely illustrative, and each module or unit in the apparatus 60 may be used to perform each action or process performed by the network device in the above method 300 or 500 or 600 For the process, here, in order to avoid redundant description, the detailed description thereof is omitted.
  • SoC system-on-chip
  • all or part of the functions of the device 60 are implemented by SoC technology, for example, by a network device function chip, the network device
  • the function chip integrates a processor, a memory, a communication interface and other devices, and the program related to the network equipment functions is stored in the memory, and the processor executes the program to realize the related functions of the base station.
  • the network device function chip can also read the external memory of the chip to realize the related functions of the base station.
  • the embodiment of the present application further provides a communication system, which includes the aforementioned at least one forwarding device and one or more than one network device.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM Double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by wire (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device may be components.
  • One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution, and the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, removable hard disk, read only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes.

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  • Computer Networks & Wireless Communication (AREA)
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  • Communication Control (AREA)

Abstract

La présente application concerne un procédé et un appareil de communication. Le procédé comprend les étapes suivantes: un élément de réseau de fonction de gestion de session (SMF) obtient un identifiant d'interface; l'élément de réseau SMF transmet une adresse d'un élément de réseau de fonction de plan utilisateur (UPF) et l'identifiant d'interface à un premier élément de réseau, l'identifiant d'interface étant utilisé par le premier élément de réseau pour déterminer une interface correspondant à l'identifiant d'interface, et l'adresse de l'élément de réseau UPF et l'interface correspondant à l'identifiant d'interface étant utilisé par le premier élément de réseau pour commander l'élément de réseau UPF. Lors du procédé de communication de modes de réalisation selon la présente invention, pour une fonction UPF, d'autres types d'éléments de réseau de plan de commande d'un type non-SMF peuvent commander l'élément de réseau UPF, et l'élément de réseau UPF peut fonctionner isolément sur la base de différentes configurations de l'élément de réseau SMF et d'autres éléments de réseau, et traiter un même paquet en parallèle, de sorte que de multiples types de dispositifs de commande commandent un même élément de réseau UPF.
PCT/CN2021/071854 2021-01-14 2021-01-14 Procédé de communication, et dispositif de réseau WO2022151206A1 (fr)

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CN110662308A (zh) * 2018-06-30 2020-01-07 华为技术有限公司 一种通信方法及装置
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