WO2022022014A1 - Procédé de contrôle de flux de qos et dispositif de communication - Google Patents

Procédé de contrôle de flux de qos et dispositif de communication Download PDF

Info

Publication number
WO2022022014A1
WO2022022014A1 PCT/CN2021/094349 CN2021094349W WO2022022014A1 WO 2022022014 A1 WO2022022014 A1 WO 2022022014A1 CN 2021094349 W CN2021094349 W CN 2021094349W WO 2022022014 A1 WO2022022014 A1 WO 2022022014A1
Authority
WO
WIPO (PCT)
Prior art keywords
network element
qos flow
pdb
session management
management network
Prior art date
Application number
PCT/CN2021/094349
Other languages
English (en)
Chinese (zh)
Inventor
李永翠
倪慧
孙海洋
Original Assignee
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022022014A1 publication Critical patent/WO2022022014A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to a QoS flow control method and a communication device.
  • the service area of the anchor session management network element refers to the is the sum of the service areas of all user plane network elements controlled by the anchor session management network element, and the intermediate session management network element for controlling the intermediate user plane network element is inserted.
  • the terminal device establishes a session with the data network to communicate with the data network through the intermediate user plane network element and the anchor user plane network element controlled by the anchor session management network element.
  • the quality of service (QoS) flow is the finest granularity of QoS differentiation in a session.
  • QoS quality of service
  • the embodiments of the present application provide a QoS flow control method and a communication device, which can facilitate the management of a first QoS flow and a first service flow branched from the first QoS flow, and can avoid duplication of anchor session management network element allocation QoS flow identifier.
  • an embodiment of the present application provides a QoS flow control method, which can be applied to a communication system, where the communication system can include an intermediate session management network element and an anchor session management network element.
  • the method may be executed by an intermediate session management network element in the communication system, or may be executed by a component of the intermediate session management network element (for example, a processor, a chip, or a chip system, etc.).
  • the QoS flow control method may include: an intermediate session management network element determines to offload a first service flow in a first QoS flow, the first QoS flow may include at least two service flows, and the at least two service flows include a first service flow. a business flow.
  • the intermediate session management network element further binds the first service flow branched from the first QoS flow to the second QoS flow, and assigns a QoS flow identifier to the second QoS flow.
  • the intermediate session management network element will send the QoS flow identifier allocated to the second QoS flow to the anchor session management network element, and the anchor session management network element can avoid assigning the second QoS flow identifier in the subsequent process of allocating the QoS flow identifier.
  • the QoS flow ID of the duplicate QoS flow ID is binds the first service flow branched from the first QoS flow to the second QoS flow, and assigns a QoS flow identifier to the second QoS flow.
  • the intermediate session management network element binds the first service flow branched from the first QoS flow to the second QoS flow, and assigns a QoS flow identifier to the second QoS flow, which can It is extremely convenient to manage the first QoS flow and the first service flow branched from the first QoS flow, for example, to manage the CN PDBs corresponding to the two QoS flows respectively.
  • the intermediate session management network element sends the QoS flow identifier allocated to the second QoS flow to the anchor session management network element, which can also prevent the anchor session management network element from assigning duplicate QoS flow identifiers.
  • the intermediate session management network element may determine a core network packet delay budget (Core Network Packet Delay Budget, CN PDB) corresponding to the second QoS flow, and assign the second QoS flow The corresponding CN PDB is sent to the access network device.
  • CN PDB Core Network Packet Delay Budget
  • the intermediate session management network element may determine the CN PDB corresponding to the second QoS flow according to the first CN PDB corresponding to the second QoS flow and the second CN PDB corresponding to the second QoS flow.
  • the first CN PDB corresponding to the second QoS flow may be the CN PDB between the access network device and the intermediate user plane network element through which the user plane connection of the second QoS flow passes, and the intermediate user plane network element is connected to the intermediate user plane network element.
  • the intermediate session management network element is connected.
  • the intermediate user plane network element may be an intermediate user plane network element connected to the access network device.
  • the second CN PDB corresponding to the second QoS flow may be the CN PDB between the intermediate user plane network element and the anchor user plane network element through which the user plane connection of the second QoS flow passes.
  • the element may be an anchor session management network element inserted by the intermediate session management network element for the outgoing first service flow.
  • the anchor user plane network element is connected to the intermediate session management network element and is controlled by the intermediate session management network element.
  • the access network device when the access network device sends the CN PDB corresponding to the second QoS flow to the access network device, it may be the correspondence between the QoS flow identifier of the second QoS flow and the CN PDB corresponding to the second QoS flow. The relationship is sent to the access network device.
  • the access network device can determine the packet delay budget (packet delay budget, PDB) corresponding to the second QoS flow according to the 5G QoS identifier (5G QoS identifier, 5QI) of the second QoS flow, and further according to the second QoS flow
  • the corresponding PDB and the CN PDB corresponding to the second QoS flow determine the access network packet delay budget (access network packet delay budget, AN PDB) corresponding to the second QoS flow.
  • the intermediate session management network element can determine the CN PDB corresponding to the second QoS flow, and send it to the access network device, which is convenient for the access network device to identify the QoS flow corresponding to the CN PDB, and also facilitates the access network device to determine the QoS flow corresponding to the CN PDB.
  • the intermediate session management network element receives indication information from the anchor session management network element, where the indication information may be used to instruct the intermediate session management network element to bind the first service flow to the the second QoS flow; alternatively, the indication information may instruct the intermediate session management network element to offload the first service flow; or, the indication information may further instruct the intermediate session management network element to assign a QoS flow identifier to the second QoS flow; or, The indication information may include a service data flow (service data flow, SDF) identifier of the first service flow, and the like.
  • service data flow service data flow, SDF
  • the anchor session network element can send the indication information to the intermediate session management network element to instruct the first service flow to be offloaded, without the intermediate session management network element making a decision, reducing the burden of the intermediate session management network element. load.
  • an embodiment of the present application provides a QoS flow control method, which can be applied to a communication system, where the communication system can include an intermediate session management network element and an anchor session management network element.
  • the method may be executed by the first session management network element, or may be executed by a component of the first session management network element (for example, a processor, a chip, or a chip system, etc.).
  • the first session management network element may be an intermediate session management network element or an anchor session management network element in the communication system.
  • the QoS flow control method may include: the first session management network element obtains the first CN PDB corresponding to the QoS flow, and the first CN PDB may be the CN PDB between the access network device and the intermediate user plane network element, wherein , the intermediate session management network element is connected to the intermediate user plane network element.
  • the intermediate user plane network element may be an intermediate user plane network element connected to the access network device.
  • the first session management network element obtains the second CN PDB corresponding to the QoS flow, and the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element.
  • the anchor point session management network element is connected to the anchor point user plane network element.
  • the access network equipment, the intermediate user plane network element and the anchor user plane network element may be the network elements through which the user plane connection of the QoS flow passes.
  • the first session management network element determines the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • acquiring the first CN PDB corresponding to the QoS flow by the first session management network element includes: the first session management network element receives from the intermediate session management network element The first CN PDB corresponding to the QoS flow.
  • acquiring the second CN PDB corresponding to the QoS flow by the first session management network element includes: the first session management network element receives from the anchor session management network element The second CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow can be determined by the intermediate session management network element or the anchor session management network element in the ETSUN scenario.
  • the first session management network element may also send the CN PDB corresponding to the QoS flow to the access network device.
  • the access network device can determine the PDB corresponding to the QoS flow according to the 5QI of the QoS flow, and further determine the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow is equal to the sum of the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • the first session management network element is an anchor session management network element
  • the anchor session management network element receives the first CN PDB corresponding to the QoS flow from the intermediate session management network element
  • the manner may be that the anchor session management network element may receive the first message from the intermediate session management network element, and the first message may include the first CN PDB corresponding to the QoS flow.
  • the intermediate session management network element may send the first CN PDB corresponding to the QoS flow to the anchor session management network element through the first message in the session modification process, or the Xn or N2 handover process or the service request process.
  • the first message may be a session update request message.
  • the intermediate session management network element can send the first CN PDB corresponding to the QoS flow to the anchor session management network element, such as the session modification process, the Xn or N2 handover process or the service request process, and the anchor point
  • the session management network element determines the CN PDB corresponding to the QoS flow. Therefore, in the ETSUN scenario, the anchor session management network element can quickly determine the CN PDB corresponding to the QoS flow, and improve the CN PDB determination efficiency.
  • the first session management network element is an anchor session management network element
  • the anchor session management network element receives the first CN PDB corresponding to the QoS flow from the intermediate session management network element
  • the manner may be that the anchor session management network element may receive a second message from the intermediate session management network element, the second message including the at least one 5G QoS identifier 5QI associated with the first topology and the at least one first CN PDB.
  • the correspondence may be issued in the form of a list, and one 5QI corresponds to one first CN PDB.
  • the first topology includes a topology combination between an access network device and an intermediate user plane network element through which the user plane connection of the QoS flow passes.
  • the intermediate user plane network element may be an intermediate user plane network element connected to the access network device.
  • the intermediate session management network element may send the above-mentioned corresponding relationship to the anchor session management network element through a second message in the session establishment process.
  • the second message may be a session creation request message.
  • the anchor session management network element may determine the first CN PDB corresponding to the QoS flow according to the 5QI of the QoS flow and the corresponding relationship. For example, the anchor session management network element selects the first CN PDB corresponding to the 5QI of the QoS flow from the corresponding relationship as the first CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow can be determined by the anchor session management network element in the session establishment process, for example.
  • the first session management network element is an intermediate session management network element
  • the intermediate session management network element receives the second CN PDB corresponding to the QoS flow from the anchor session management network element It may be that the intermediate session management network element receives a third message from the anchor session management network element, where the third message includes the second CN PDB corresponding to the QoS flow.
  • the anchor session management network element can send the second CN PDB corresponding to the QoS flow to the intermediate session management through the third message in the session establishment process, or the session modification process, or the Xn or N2 handover process or the service request process. network element.
  • the third message may be a session creation response message. If the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element in another process, the third message may be a session update response message.
  • the anchor session management network element can send the second CN PDB corresponding to the QoS flow to the intermediate session management network element, such as the session creation process, the session modification process, the Xn or N2 handover process, or the service request process.
  • the intermediate session management network element can quickly determine the CN PDB corresponding to the QoS flow, and improve the CN PDB determination efficiency.
  • an embodiment of the present application provides a QoS flow control method, which can be applied to a communication system, where the communication system can include an access network device, an intermediate session management network element, and an anchor session management network element.
  • the method may be executed by an access network device, or may be executed by a component of the access network device (for example, a processor, a chip, or a chip system, etc.).
  • the QoS flow control method may include: the access network device receives the first CN PDB corresponding to the QoS flow from the intermediate session management network element, and receives the second CN PDB corresponding to the QoS flow from the anchor session management network element, wherein the first CN PDB corresponding to the QoS flow is received from the anchor session management network element.
  • the first CN PDB is the CN PDB between the access network equipment and the intermediate user plane network element
  • the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element.
  • the intermediate session management network element is connected to the intermediate user plane network element
  • the anchor point session management network element is connected to the anchor point user plane network element.
  • the anchor session management network element determines the first CN PDB corresponding to the QoS flow, and sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element.
  • the anchor session management network element may create a session through a session.
  • the response message or the session update response message sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element.
  • the intermediate session management network element determines the second CN PDB corresponding to the QoS flow, and sends the second CN PDB corresponding to the QoS flow and the first CN PDB corresponding to the QoS flow received from the anchor session management network element to the access network. equipment.
  • the access network device may determine the PDB corresponding to the QoS flow according to the 5QI of the QoS flow; further, the access network device may determine the PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • the intermediate session management network element sends the first CN PDB corresponding to the QoS flow to the access network device, and the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the access network device network equipment, so that the access network equipment can accurately determine the AN PDB corresponding to the QoS flow.
  • the AN PDB corresponding to the QoS flow is equal to the value obtained by subtracting the first CN PDB corresponding to the QoS flow from the PDB corresponding to the QoS flow and subtracting the second CN PDB corresponding to the QoS flow .
  • an embodiment of the present application provides a communication apparatus, including each module or unit for executing the method of any one of the first aspect to the third aspect.
  • an embodiment of the present application provides a communication device, including a processor.
  • the processor is coupled to the memory and can be used to execute instructions in the memory to implement the method of any one of the first to third aspects above.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled to the communication interface.
  • an embodiment of the present application provides a processor, including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method of any one of the first to third aspects.
  • the above-mentioned processor may be one or more chips
  • the input circuit may be input pins
  • the output circuit may be output pins
  • the processing circuit may be transistors, gate circuits, flip-flops and various logic circuits, etc. .
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • an embodiment of the present application provides a processing apparatus, including a processor and a memory.
  • the processor is used to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter, so as to perform the method of any one of the first to third aspects.
  • 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 memory can be a non-transitory memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting manner of the memory and the processor.
  • ROM read only memory
  • sending CN PDB may be the process of outputting CN PDB from the processor
  • receiving CN PDB may be the process of processor receiving CN PDB.
  • the data output by the processor can be output to the transmitter, and the input data received by the processor can be from the receiver.
  • the transmitter and the receiver may be collectively referred to as a transceiver.
  • the processing device in the above seventh aspect may be one or more chips.
  • the processor in the processing device may be implemented by hardware or by software.
  • the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, implemented by reading software codes stored in a memory, which can Integrated in the processor, can be located outside the processor, independent existence.
  • an embodiment of the present application provides a computer program product, the computer program product includes: a computer program (also referred to as code, or an instruction), when the computer program is run, the computer executes the above-mentioned first step.
  • a computer program also referred to as code, or an instruction
  • the computer executes the above-mentioned first step.
  • an embodiment of the present application provides a readable storage medium, where the readable storage medium stores a computer program (also referred to as code, or instruction) when it runs on a computer, so that the above-mentioned first aspect is The method of any of the to third aspects is implemented.
  • a computer program also referred to as code, or instruction
  • an embodiment of the present application provides a communication system, including the foregoing intermediate session management network element and an anchor session management network element.
  • the communication system may further include an access network device.
  • a chip system in an eleventh aspect, includes a processor and an interface circuit, and the processor is configured to call and execute a computer program (also referred to as code, or instruction) stored in the memory from the memory to achieve
  • a computer program also referred to as code, or instruction
  • the chip system further includes a memory, and the memory is used for storing necessary program instructions and data.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • Fig. 1 is a 5G system architecture diagram under a kind of ETSUN scenario provided by this application;
  • FIGS. 2a to 2b are network architecture diagrams to which the embodiments of the present application are applicable;
  • FIG. 3 is a schematic flowchart of a QoS flow control method provided by the present application.
  • FIG. 4 is a schematic flowchart of a specific example of a QoS flow control method provided by the present application.
  • FIG. 5 is a schematic flowchart of a QoS flow control method provided by the present application.
  • FIG. 6 is a schematic flowchart of a specific example of a QoS flow control method provided by the present application.
  • FIG. 7 is a schematic flowchart of a QoS flow control method provided by the present application.
  • FIG. 8 is a schematic flowchart of a specific example of a QoS flow control method provided by the present application.
  • FIG. 9 is a schematic flowchart of a QoS flow control method provided by the present application.
  • FIG. 10 is a schematic flowchart of a specific example of a QoS flow control method provided by the present application.
  • FIG. 11 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a chip provided by an embodiment of the present application.
  • LTE long term evolution
  • UMTS universal mobile telecommunication system
  • 5G fifth generation
  • NR new radio
  • FIG. 1 shows a schematic diagram of a 5G system that can be applied to the ETSUN scenario of the present application.
  • the system can be divided into two parts: the access network and the core network.
  • the access network is used to implement functions related to wireless access, mainly including access network (AN) devices.
  • the access network devices can be radio access network (RAN) devices and other devices that access through the air interface. devices (such as WiFi).
  • RAN radio access network
  • the core network mainly includes the following key logical network elements: user plane function (UPF), intermediate user plane function (Intermediate UPF, I-UPF), access and mobility management function (AMF) ), session management function (session management function, SMF), intermediate session management function (Intermediate SMF, I-SMF), policy control function (policy control function, PCF), unified data management function (unified data management, UDM).
  • the system may also include user equipment (user equipment, UE), data network (data network, DN), and application function (application function, AF).
  • the interfaces between the network elements are shown in FIG. 1 . It should be understood that a service-based interface may also be used for communication between network elements.
  • system architecture may include at least one I-UPF and at least one I-SMF, and the figure includes one I-UPF and one I-SMF as an example for illustration.
  • Terminal devices may communicate with one or more core networks (CNs) via AN devices.
  • a terminal device may be referred to as an access terminal, terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless network device, user agent, or user equipment.
  • the terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld wireless communication capable Devices, computing devices or other devices connected to wireless modems, in-vehicle devices, wearable devices or the Internet of Things, end devices in vehicle networks, and any form of end device in future networks, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • An AN device is a device that accesses a terminal device to a wireless network, and may specifically be a base station.
  • the base station may include various forms of base stations, such as: a macro base station, a micro base station (also called a small station), a relay station, an access point, and the like.
  • a macro base station such as: a macro base station, a micro base station (also called a small station), a relay station, an access point, and the like.
  • AP access point
  • WLAN wireless local area network
  • GSM global system for mobile communications
  • code division multiple access code division multiple access
  • CDMA Code Division Multiple access
  • base station base transceiver station, BTS
  • WCDMA wideband code division multiple access
  • NodeB base station
  • NB can also be an evolved base station in LTE (Evolved Node B, eNB or eNodeB), or relay station or access point, or in-vehicle devices, wearable devices, and the next generation Node B (gNB) in 5G systems or future evolution of public land mobile networks (public land mobile network, PLMN) base station in the network, etc.
  • LTE evolved Node B, eNB or eNodeB
  • gNB next generation Node B
  • 5G systems public land mobile networks
  • PLMN public land mobile network
  • UDM has functions such as managing user contract data and generating user authentication information.
  • AMF is mainly responsible for UE registration management, UE connection management, UE reachability management, UE access authorization and access authentication, UE security functions, UE mobility management, and network slice selection. , SMF selection and other functions.
  • the AMF acts as the anchor point of the N1/N2 interface signaling connection and provides the SMF with the routing of N1/N2 interface session management (session management, SM) messages, and maintains and manages the state information of the UE.
  • AMF is a mobility management network element in the 5G system.
  • SMF is mainly responsible for all control plane functions of UE session management, including UPF selection and control, network interconnection protocol (IP) address allocation and management, session quality of service (QoS) management, from PCF Obtain policy and charging control (policy and charging control, PCC) policy, etc.
  • IP network interconnection protocol
  • QoS session quality of service
  • PCC policy and charging control
  • the SMF also acts as a termination point for the SM part of a non-access stratum (NAS) message.
  • NAS non-access stratum
  • the I-SMF is mainly responsible for the selection and control of the I-UPF.
  • PCF has functions such as providing policy rules to control plane functional entities.
  • AF which may be an application server, may belong to an operator or a third party.
  • UPF is mainly responsible for processing user packets, such as forwarding, charging, etc., and can be used as an anchor point for protocol data unit (PDU) session connection, that is, PDU session anchor (PSA session anchor, PSA). ), responsible for UE data packet filtering, data transmission/forwarding, rate control, generation of charging information, user plane QoS processing, uplink transmission authentication, transmission level verification, downlink data packet buffering, and downlink data notification triggering, etc.
  • PDU session anchor PDU session anchor
  • the UPF can also act as a branch point for a multi-homed PDU session.
  • I-UPF is mainly responsible for intermediate forwarding of packets.
  • the DN a network that provides data transmission services for users, such as IP Multi-media service (IMS), Internet, etc.
  • the DN can include an application server (AS), which is a software framework that provides an application running environment and is used to provide applications with services such as security, data, transaction support, load balancing, and large-scale distributed system management.
  • AS application server
  • the UE obtains the application message by communicating with the AS. It should be noted that the above-mentioned AF is the control plane of the AS.
  • a communication system to which the session management method of the embodiment of the present application can be applied may include more or less network elements or devices.
  • the device or network element in FIG. 1 may be hardware, software divided by functions, or a combination of the above two.
  • the devices or network elements in FIG. 1 may communicate with each other through other devices or network elements.
  • Figure 2a is a simplified system architecture diagram applicable to the present application.
  • the system architecture includes terminal equipment, access network equipment, intermediate user plane network elements, anchor point user plane network elements, and data network , access and mobility management equipment, intermediate session management network elements, anchor session management network elements.
  • the intermediate user plane network element in this embodiment of the present application may refer to a user plane network element connected to an access network device, the intermediate user plane network element is connected to an intermediate session management network element, and is controlled by the intermediate session management network element .
  • the anchor user plane network element in this embodiment of the present application may refer to a user plane network element connected to a data network, the anchor user plane network element is connected to the anchor session management network element, and is controlled by the anchor session management network element . It can be understood that one or more intermediate user plane network elements may exist between the access network device and the anchor point user plane network element, which is not limited in this embodiment of the present application.
  • the first CN PDB in this embodiment of the present application may refer to the CN PDB between the access network device and the intermediate user plane network element
  • the second CN PDB may refer to the relationship between the intermediate user plane network element and the anchor user plane network element CN PDB between.
  • the access network device may be the RAN in FIG. 1, the intermediate user plane network element may be the I-UPF connected to the RAN in FIG. 1, and the intermediate session management network element may be the one in FIG. 1.
  • I-SMF the I-UPF is controlled by the I-SMF.
  • the anchor user plane network element may be the UPF connected to the SMF in FIG. 1
  • the anchor session management network element may be the SMF in FIG. 1
  • the UPF is controlled by the SMF.
  • the first CN PDB may refer to the N3 CN PDB between the RAN and the I-UPF
  • the second CN PDB may refer to the N9 CN PDB between the I-UPF and the UPF.
  • the network element passed by the user plane connection of the QoS flow in the session may be the network element passed by Path 1.
  • the intermediate session management network element decides to insert the local session anchor user plane network element (Local PDU session anchor UPF, Local PSA UPF) as another anchor point user plane network element. It is abbreviated as L-UPF.
  • L-UPF local session anchor user plane network element
  • the intermediate session management network element is inserted into the offload point to implement offloading and sending of one or more service flows in the QoS flow to the local session anchor point user plane network element.
  • the same session of the terminal device has multiple different anchor user plane network elements.
  • the same session has anchor point user plane network element 1 and anchor point user plane network element 2.
  • Packets of different service flows in the same session can be distributed to different anchor user plane NEs.
  • packets of different service flows in the same session can be sent to the anchor user plane NE 1 through path 1, and sent to the anchor user plane NE 2 through path 2 respectively.
  • the branch point can be implemented in two ways: (1) branching point (BP) way, that is, inserting BP on user plane path 1; (2) uplink classifier (ULCL) way, That is, insert the ULCL implementation on the user plane path 1.
  • BP branching point
  • ULCL uplink classifier
  • the offload point may be an intermediate user plane network element through which the user plane connection of the QoS flow passes, or may also be a new intermediate user plane network element reselected by the intermediate session management network element.
  • the session of the terminal device has multiple anchor user plane network elements.
  • the offload point For the uplink service flow (uplink, UL), the offload point sends the received UL service flow to different anchor point user plane network elements according to the forwarding rules; for the downlink service flow Flow (downlink, DL), the offload point sends the DL service flow to the UE according to the forwarding rule.
  • QoS flow (for example: QoS Flow)
  • a PDU session can include one or more QoS flows.
  • a QoS flow identity (QFI) is used to identify a QoS flow; the user plane data with the same QFI in the PDU session will obtain the same forwarding processing (such as the same scheduling, the same admission threshold, etc. ).
  • the QoS flow may be controlled by the SMF, which may be pre-configured or established through a PDU session establishment or modification procedure.
  • the SMF can send the QoS rules (for example: QoS rule) of the QoS flow to the UE.
  • the QoS rules include QFI, packet filter set, etc.
  • the UE can classify and mark the upstream service flow according to the QoS rules, that is, the terminal
  • the device can associate the uplink data with the corresponding QoS flow according to the QoS rules.
  • the SMF can send the QoS profile (for example: QoS profile) of the QoS flow to the RAN.
  • the QoS profile includes 5QI, allocation and retention priority (ARP), guaranteed flow bit rate (GFBR), maximum Stream bit rate (maximum flow bit rate, MFBR), etc.
  • ARP allocation and retention priority
  • GFBR guaranteed flow bit rate
  • MFBR maximum Stream bit rate
  • One QoS document corresponds to one QFI.
  • the RAN can control the traffic flow according to the QoS profile.
  • the resource types of QoS flows can be divided into the following types: guaranteed bit rate (GBR) QoS flows, delay-critical GBR (for example: delay-critical GBR) QoS flows, and non-guaranteed bit rate Non-GBR QoS flows flow.
  • GBR guaranteed bit rate
  • Non-GBR QoS flows flow.
  • 5G QoS identifier (5G QoS identifier, 5QI)
  • 5QI is used to represent the 5G QoS characteristics of QoS flows
  • 5QI is a scalar, used to index a 5G QoS characteristics
  • QoS characteristics can include at least one of resource type, priority level, PDB, packet error rate, average window, etc. .
  • PDB refers to the upper limit of the delay of packet transmission between the terminal device and the anchor user plane network element.
  • the anchor user plane network element can refer to the UPF that terminates the N6 interface in the 5G system.
  • PDBs can be used to support scheduling and link layer function configuration, such as setting scheduling priority weights.
  • AN PDB refers to the upper limit of the delay of packet transmission between terminal equipment and access network equipment.
  • CN PDB refers to the upper limit of the delay of packet transmission between the access network equipment and the anchor user plane network element.
  • PDB is equal to the sum of AN PDB and CN PDB.
  • the CN PDB can be configured on the session management network element.
  • the session management network element can assign the CN corresponding to the QoS flow.
  • the PDB is sent to the access network device, and the access network device can obtain the PDB corresponding to the QoS flow according to the 5QI index of the QoS flow, and further determine the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the CN PDB in this embodiment of the present application may include a first CN PDB and a second CN PDB.
  • the first CN PDB may refer to the CN PDB between the access network device and the intermediate user plane network element
  • the second CN PDB may refer to the CN PDB between the intermediate user plane network element and the anchor user plane network element.
  • the CN PDB is equal to the sum of the first CN PDB and the second CN PDB.
  • the first CN PDB may be configured on an intermediate session management network element for controlling the intermediate user plane network element
  • the second CN PDB may be configured on an anchor session management network element for controlling the anchor user plane network element on the network element.
  • the uplink CN PDB and/or the downlink CN PDB may be configured separately, or the CN PDB may be configured regardless of the uplink and downlink configurations.
  • the uplink CN PDB and the downlink CN PDB may be configured. same. If the uplink CN PDB and/or the downlink CN PDB are configured, correspondingly, when determining the uplink AN PDB, the uplink PDB and the uplink CN PDB can be used for calculation. When determining the downlink AN PDB, the downlink PDB and the downlink CN PDB can be used for calculation.
  • FIG. 3 is a schematic flowchart of a QoS flow control method provided by an embodiment of the present application.
  • This embodiment relates to a scenario of performing traffic shunting in a communication system including an intermediate session management network element and an anchor session management network element
  • Figure 2b is an example of the network architecture for this scenario.
  • the method may include: S101, S102, and S103, and optionally, may further include S104, S105, and S106.
  • the execution sequence of S101, S102, S103, S104, S105, and S106 is not limited in this embodiment of the present application.
  • the QoS flow control method in this embodiment of the present application includes but is not limited to the following steps:
  • the intermediate session management network element determines to offload a first service flow in a first QoS flow, where the first QoS flow includes at least two service flows, and the at least two service flows include the first service flow .
  • the terminal device establishes a user plane connection for the session, and the session may be a Protocol Data Unit (Protocol Data Unit, PDU) session, and the user plane connection may pass through the terminal device, the access network device, the intermediate user plane network
  • the element, the anchor user plane network element and the data network may be the network elements passed by the path 1 in FIG. 2b.
  • the terminal device can access the data network through the user plane connection.
  • the intermediate user plane network element may be connected to and controlled by the intermediate session management network element.
  • the anchor user plane network element can be connected to and controlled by the anchor session management network element.
  • the session may include a first QoS flow, and the first QoS flow may include at least two service flows.
  • the intermediate session management network element may determine to offload the service flow in the first QoS flow. For example, when the intermediate session management network element detects that the terminal device moves to a location area corresponding to a data network access identifier (DNAI), it determines to offload the service flow in the first QoS flow.
  • the DNAI may be obtained by the intermediate session management network element from the anchor session management network element.
  • the intermediate session management network element can insert the local session anchor user plane network element (for example: Local PSA UPF) as another anchor point user plane network element, and report to the local session anchor point user
  • the plane network element initiates a session establishment process to establish a control relationship between the intermediate session management network element and the local session anchor user plane network element.
  • the intermediate session management network element further selects the offload point to realize the offloading of the service flow to the local session anchor point user plane network element.
  • the distribution point may be an intermediate user plane network element through which the user plane connection of the session passes, or may be an intermediate user plane network element reselected by the intermediate session management network element. If the offload point is an intermediate user plane network element reselected by the intermediate session management network element, the intermediate session management network element may initiate a session establishment process to the offload point to establish a connection between the intermediate session management network element and the offload point. control relationship.
  • the intermediate session management network element may determine to offload the first service flow in the first QoS flow according to the policy information associated with the session.
  • the intermediate session management network element may receive indication information from the anchor session management network element, and determine to offload the first service flow according to the indication information.
  • the indication information may instruct the intermediate session management network element to bind the first service flow to the second QoS flow; or, the indication information may instruct the intermediate session management network element to offload the first service flow; or, the The indication information may also instruct the intermediate session management network element to allocate a QoS flow identifier for the second QoS flow; or, the indication information may include a service data flow (service data flow, SDF) identifier of the first service flow, and the like.
  • the anchor session management network element may send the indication information to the intermediate session management network element through a session update response message, and further optionally, the session update response message may also include 5QI, QoS rules, and QoS documents.
  • the 5QI, QoS rules, and QoS documents in the session update response message may correspond to the first service flow.
  • the anchor session management network element may be based on the 5QI, QoS rules, and QoS documents of the first QoS flow. , and determine the 5QI, QoS rule and QoS document corresponding to the first service flow.
  • the 5QI, the QoS rule, and the QoS document in the session update response message may also correspond to the first QoS flow.
  • the intermediate session management network element may send a session update request message to the anchor session management network element, the session update request message. It may include offload indication information for indicating that the first QoS flow is offloaded.
  • the session update request message may include offload indication information inserted into the offload point, and the anchor point session management network element can be determined according to the offload indication information. Divide the first service flow.
  • the anchor session management network element may determine to offload the first service flow locally according to the policy information associated with the session received from the PCF and the DNAI list supported by the intermediate session management network element.
  • the policy information associated with the session may specifically be the corresponding relationship between DNAI and service flow.
  • the intermediate session management network element binds the first service flow to the second QoS flow, and allocates a QoS flow identifier to the second QoS flow;
  • the intermediate session management network element performs QoS flow binding (eg, QoS flow binding) on the first service flow, eg, binding the first service flow to the second QoS flow.
  • QoS flow binding eg, QoS flow binding
  • the intermediate session management network element allocates a QoS flow identifier to the second QoS flow.
  • the intermediate session management network element may determine the QoS rule, the QoS profile and the 5QI of the second QoS flow.
  • the QoS rule, QoS document and 5QI of the second QoS flow may be determined by the intermediate session management network element according to the 5QI, QoS rule and QoS document received from the anchor session management network element.
  • the QoS document of the second QoS flow may be the same as the QoS document of the first QoS flow; the QoS rules of the second QoS flow include the QoS flow identifier of the second QoS flow, the packet filter set corresponding to the first service flow set), etc.
  • the intermediate session management network element sends the QoS flow identifier to the anchor session management network element.
  • the intermediate session management network element may send a session update request message to the anchor session management network element, where the session update request message includes a QoS flow identifier allocated for the second QoS flow.
  • the anchor session management network element receives the QoS flow identifier, and when the QoS flow binding is performed subsequently, the anchor session management network element can be prevented from allocating duplicate QFIs.
  • the intermediate session management network element may also send the QoS flow identifier allocated for the second QoS flow to the access network device and the terminal device.
  • the intermediate session management network element may send the QoS flow identifier of the second QoS flow to the terminal device through the N1 SM information in the N1N2 message transmission request, and send the QoS flow identifier of the second QoS flow to the terminal device through the N2 SM information in the N1N2 message transmission request.
  • the identification is sent to the access network device.
  • the N1 SM information may also include the QoS rule of the second QoS flow sent to the terminal device; the N2 SM information may also include the QoS document of the second QoS flow sent to the access network device.
  • the intermediate session management network element determines the CN PDB corresponding to the second QoS flow.
  • the network elements through which the user plane connection of the second QoS flow passes may include terminal equipment, access network equipment, intermediate user plane network elements, and local session anchor user plane network elements, for example, it may be shown in Figure 2b
  • the network element that path 2 passes through may be shown in Figure 2b
  • the intermediate user plane network element may be a user plane network element connected to the access network device.
  • the intermediate session management network element can determine the CN PDB corresponding to the second QoS flow in the following two ways. It can be understood that the following two ways are only examples and do not constitute a limitation to this application:
  • Manner 1 The user plane connection between the access network device and the intermediate user plane network element and the user plane connection between the intermediate user plane network element and the local session anchor user plane network element are managed by the intermediate session management network element.
  • the first CN PDB configuration information and the second CN PDB configuration information may be configured on the intermediate session management network element.
  • the first CN PDB configuration information may include various topology combinations, the correspondence between each 5QI and each first CN PDB, and the various topological combinations may be each access network device and each control of the intermediate session management network element. Topological combination of intermediate user plane NEs. For example, it may be a topology combination, and one 5QI corresponds to one first CN PDB.
  • the configuration information of the second CN PDB may include various topology combinations, the correspondence between each 5QI and each second CN PDB, and the various topology combinations may be each intermediate user plane network element controlled by the intermediate session management network element and each intermediate user plane network element.
  • the topology combination of each local session anchor user plane network element controlled by the intermediate session management network element For example, it may be a topology combination, and one 5QI corresponds to one second CN PDB.
  • the intermediate session management network element may, according to the configuration information of the first CN PDB, the 5QI of the second QoS flow, and the access network device and the intermediate user plane network element through which the user plane connection of the second QoS flow passes, determine the corresponding network element of the second QoS flow.
  • First CN PDB The intermediate session management network element may determine the second CN PDB configuration information, the 5QI of the second QoS flow, and the intermediate user plane network element and the local session anchor user plane network element through which the user plane connection of the second QoS flow passes.
  • the second CN PDB corresponding to the QoS flow.
  • the 5QI of the second QoS flow may come from the anchor session management network element, or may also be obtained by the intermediate session management network element according to the policy of the session.
  • the intermediate session management network element may determine the CN PDB corresponding to the second QoS flow according to the first CN PDB corresponding to the second QoS flow and the second CN PDB corresponding to the second QoS flow.
  • the first CN PDB is N3 CN PDB
  • the second CN PDB is N9 CN PDB
  • the intermediate session management network element is I-SMF
  • the access network equipment is RAN
  • the intermediate user plane network element is I-UPF
  • the local session anchor The point user plane network element is L-UPF as an example to illustrate the determination of the CN PDB corresponding to the second QoS flow.
  • the I-SMF can be configured with N3 CN PDB configuration information and N9 CN PDB configuration information, where the N3 CN PDB configuration information It can be shown in Table 1, and the N9 CN PDB configuration information can be shown in Table 2.
  • the user plane connection of the second QoS flow passes through RAN2, I-UPF1 and L-UPF2, and the 5QI of the QoS flow is 5QI2, then the N3 CN PDB3 corresponding to the second QoS flow can be obtained from the index in Table 1.
  • the second QoS flow corresponding to N9 CN PDB3 is obtained from the index in Table 2.
  • the I-SMF determines that the CN PDB corresponding to the second QoS flow is the sum of N3 CN PDB3 and N9 CN PDB3.
  • CN PDB configuration information may be configured on the intermediate session management network element.
  • the CN PDB configuration information may include various topology combinations, the correspondence between each 5QI and each CN PDB, and the various topology combinations may be each access network device. and a topology combination between each intermediate user plane network element controlled by the intermediate session management network element and each local session anchor user plane network element controlled by the intermediate session management network element. For example, it can be a topology combination, and one 5QI corresponds to one CN PDB.
  • the intermediate session management network element may be based on the CN PDB configuration information, the 5QI of the second QoS flow, and the access network equipment through which the user plane of the second QoS flow is connected to the intermediate user plane network element and the local session anchor user plane network element, Determine the CN PDB corresponding to the second QoS flow.
  • the following continues to take the intermediate session management network element as I-SMF, the access network equipment as RAN, the intermediate user plane network element as I-UPF, and the local session anchor user plane network element as L-UPF as an example, to determine the second QoS
  • the CN PDB corresponding to the flow is described.
  • the CN PDB configuration information can be configured on the I-SMF, and the CN PDB configuration information can be shown in Table 3.
  • the user plane connection of the second QoS flow passes through RAN2, I-UPF1 and L-UPF2, and the 5QI of the QoS flow is 5QI2, then the I-SMF obtains the CN PDB3 corresponding to the second QoS flow from the index in Table 3.
  • the intermediate session management network element sends the CN PDB corresponding to the second QoS flow to the access network device.
  • the access network device determines the AN PDB corresponding to the second QoS flow according to the PDB corresponding to the second QoS flow and the CN PDB corresponding to the second QoS flow.
  • the intermediate session management network element may send the correspondence between the QoS flow identifier of the second QoS flow and the CN PDB corresponding to the second QoS flow to the access network device. Further optionally, the access network device may determine the PDB corresponding to the second QoS flow according to the 5QI of the second QoS flow, and determine the PDB corresponding to the second QoS flow and the CN PDB corresponding to the second QoS flow. The AN PDB corresponding to the second QoS flow.
  • the intermediate session management network element may also send the correspondence between the QoS flow identifier of the first QoS flow and the CN PDB corresponding to the first QoS flow to the access network device, and the access network device determines the first QoS flow.
  • AN PDB corresponding to a QoS flow may be determined by an intermediate session management network element, and for details, reference may be made to the descriptions in the embodiments of FIG. 7 and FIG. 8 .
  • the CN PDB corresponding to the first QoS flow may also be determined by the anchor session management network element. For details, refer to the descriptions in the embodiments of FIG. 5 and FIG. 6 .
  • the intermediate session management network element may also send the first CN PDB corresponding to the first QoS flow to the access network device, and the anchor session management network element may send the second CN PDB corresponding to the first QoS flow to the access network. device, and the AN PDB corresponding to the first QoS flow is determined by the access network device.
  • the terminal equipment is UE
  • the mobility management network element is AMF
  • the access network equipment is RAN
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the intermediate user plane network element is The element is I-UPF
  • the anchor user plane network element is UPF as an example.
  • the UE establishes a PDU session.
  • the user plane connection of the PDU session goes through UE, RAN, I-UPF, and UPF.
  • the I-UPF is controlled by the I-SMF
  • the UPF is controlled by the SMF.
  • the PDU session may include a first QoS flow.
  • the I-SMF decides to insert a local session anchor user plane network element (eg L-UPF) as another anchor point user plane network element of the session.
  • L-UPF local session anchor user plane network element
  • the I-SMF selects the L-UPF and initiates the N4 session establishment process to the L-UPF.
  • the I-SMF selects the offload point, where the offload point may be the I-UPF through which the user plane connection of the session passes, or the I-UPF reselected by the I-SMF, if the offload point is the I-SMF If selected again, the I-SMF may initiate an N4 session establishment procedure to the offload point.
  • the offload point may be the I-UPF through which the user plane connection of the session passes, or the I-UPF reselected by the I-SMF, if the offload point is the I-SMF If selected again, the I-SMF may initiate an N4 session establishment procedure to the offload point.
  • the I-SMF sends a session update request message to the SMF, where the session update request message may include indication information of the split point inserted by the I-SMF.
  • the session update request message may correspond to the serviced interface Nsmf_PDUSession_update_request.
  • the SMF updates the UPF, that is, the SMF initiates an N4 session modification process to the UPF.
  • the SMF may establish a downlink tunnel between the offload point and the UPF through the N4 session modification process. If the offload point in step S203 is not reselected by the I-SMF, the SMF may not initiate an N4 session modification procedure to the UPF.
  • the SMF sends a session update response message to the I-SMF.
  • the session update response message may include indication information, and the indication information may instruct the I-SMF to offload the first service flow, or the indication information may be an indication
  • the I-SMF binds the first service flow to the second QoS flow; alternatively, the indication information may instruct the I-SMF to assign a QoS flow identifier to the second QoS flow; alternatively, the indication information may further include the service of the first service flow
  • the data flow identifies SDF1.
  • the SMF may be the first service flow that is determined to be offloaded according to the policy information of the session.
  • the indication information may be the N4 information contained in the session update response message, and the I-SMF obtains the indication information by parsing the N4 information.
  • the indication information may be an existing parameter in the N4 information, such as The first service flow identifies SDF1.
  • the session update response message may further include indication information for instructing the I-SMF to parse the N4 information.
  • the indication information for instructing the I-SMF to offload the first service flow may not be included in the N4 information, for example, it may be included in the session update response message in parallel with the N4 information.
  • the session update response message may correspond to the serviced interface Nsmf_PDUSession_update_response.
  • the I-SMF determines to offload the first service flow to the local according to the indication information. Specifically, the I-SMF performs QoS flow binding (eg, QoS flow binding) on the first service flow, thereby binding the first service flow to the second QoS flow, and assigns a QoS flow identifier to the second QoS flow.
  • QoS flow binding eg, QoS flow binding
  • the I-SMF may send the QoS flow identifier allocated for the second QoS flow to the SMF, for example, the I-SMF sends a session update request message to the SMF, where the session update request message includes the QoS flow allocated for the second QoS flow logo.
  • the SMF performs QoS flow binding, it can avoid assigning duplicate QoS flow identifiers.
  • the I-SMF can determine the CN PDB corresponding to the second QoS flow according to the N3 CN PDB configuration information and the N9 CN PDB configuration information, or the I-SMF can determine the CN PDB corresponding to the second QoS flow according to the CN PDB configuration information CN PDB.
  • the specific determination method reference may be made to the description of step S104 in FIG. 3 , which will not be repeated here.
  • the I-SMF initiates an N4 session modification process to the L-UPF, for example, the information of the offload point is sent to the L-UPF through the N4 session modification process.
  • the I-SMF initiates an N4 session modification process to the offload point, for example, instructing the offload point to offload the first service flow to the L-UPF through the N4 session modification process.
  • the I-SMF sends an N1N2 message transmission request to the AMF, where the N1N2 message transmission request includes the PDU session identifier, the N2 SM information, and the N1 SM information, wherein the N1 SM information refers to the information about the session sent by the I-SMF to the UE, N2 SM information refers to the information about the session sent by the I-SMF to the RAN.
  • the N1N2 message transmission request may further include the CN PDB corresponding to the second QoS flow.
  • the CN PDB corresponding to the second QoS flow may be included in the N2 SM information.
  • the N2 SM information may further include a session identifier, a QoS flow identifier corresponding to the second QoS flow, a QoS document corresponding to the second QoS flow, and the like.
  • the N1 SM information may include a QoS rule corresponding to the second QoS flow and a QoS flow identifier corresponding to the second QoS flow.
  • the AMF sends an N2 PDU session request to the RAN, where the N2 PDU session request includes the N2 SM information and the NAS message.
  • the NAS message contains N1 SM information.
  • the communication system includes an anchor session management network element and an intermediate session management network element, the intermediate session management network element controls the intermediate user plane network element, and the anchor session management network element controls the anchor user. face network element.
  • the intermediate session management network element is configured with first CN PDB configuration information, the first CN PDB configuration information may include various topology combinations, the correspondence between each 5QI and each first CN PDB, and the various topology combinations may It is a topology combination between each access network device and each intermediate user plane network element controlled by the intermediate session management network element. For example, it may be a topology combination, and one 5QI corresponds to one first CN PDB.
  • the anchor session management network element is configured with second CN PDB configuration information, and the second CN PDB configuration information may include various topology combinations, the correspondence between each 5QI and each second CN PDB, and the various topology combinations It may be a topology combination between each intermediate user plane network element and each anchor point user plane network element controlled by the anchor point session management network element. For example, it may be a topology combination, and one 5QI corresponds to one second CN PDB.
  • the first CN PDB is N3 CN PDB
  • the second CN PDB is N9 CN PDB
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the access network equipment is RAN
  • the element is I-UPF
  • the anchor user plane network element is UPF as an example.
  • the first CN PDB configuration information configured on the I-SMF may be as shown in Table 4, which includes various topology combinations of each RAN and each I-UPF controlled by the I-SMF, each 5QI and each N3 CN Correspondence between PDBs.
  • the configuration information of the second CN PDB configured on the SMF may be as shown in Table 5.
  • the table 5 includes various topology combinations of each I-UPF and each UPF controlled by the SMF, and the relationship between each 5QI and each N9 CN PDB. Correspondence.
  • the first CN PDB configuration information is configured on the intermediate session management network element
  • the second CN PDB configuration information is configured on the anchor session management network element.
  • the intermediate session management network element can send the first CN PDB corresponding to the QoS flow to the anchor session management network element
  • the anchor session management network element determines the CN PDB corresponding to the QoS flow
  • the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the anchor session management network element can send the second CN PDB corresponding to the QoS flow to the intermediate session management network element, and the intermediate session management network element determines the CN PDB corresponding to the QoS flow ,
  • the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the intermediate session management network element may send the first CN PDB corresponding to the QoS flow to the access network device, and the anchor session management network element may send the second CN PDB corresponding to the QoS flow.
  • the access network device For the access network device, the access network device finally determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow, the first CN PDB corresponding to the QoS flow, and the second CN PDB corresponding to the QoS flow.
  • 2a and 2b may be two network architecture examples for implementing each embodiment, wherein, in the network architecture of the traffic distribution scenario shown in FIG. 2b, the QoS flow in this embodiment of the present application may refer to the QoS corresponding to path 1 flow.
  • FIG. 5 is a schematic flowchart of a QoS flow control method provided by an embodiment of the present application.
  • This embodiment relates to a communication system including an intermediate session management network element and an anchor session management network element.
  • the session management network element determines the CN PDB scenario, as shown in FIG. 5 , the method may include: S301, S302, and S303, and optionally, may also include S304 and S305.
  • the execution sequence of S301, S302, S303, S304, and S305 is not limited in this embodiment of the present application.
  • the QoS flow control method in this embodiment of the present application includes but is not limited to the following steps:
  • the intermediate session management network element sends the first CN PDB corresponding to the QoS flow to the anchor session management network element, where the first CN PDB is the CN PDB between the access network device and the intermediate user plane network element, wherein, The intermediate session management network element is connected to the intermediate user plane network element.
  • the intermediate session management network element can be based on the topological combination of the access network equipment and the intermediate user plane network element through which the user plane connection of the QoS flow passes, and the QoS
  • the 5QI of the flow and the configuration information of the first CN PDB configured on the intermediate session management network element determine the first CN PDB corresponding to the QoS flow.
  • the intermediate session management network element selects the first CN PDB corresponding to the topology combination and the 5QI of the QoS flow from the first CN PDB configuration information as the first CN PDB corresponding to the QoS flow.
  • the 5QI of the QoS flow obtained by the intermediate session management network element may be obtained during the session establishment process.
  • the anchor session management network element sends the 5QI of the QoS flow to the intermediate session management network element, or the intermediate session management network element obtains the 5QI of the QoS flow by parsing the QoS document corresponding to the QoS flow.
  • the intermediate session management network element sends the first CN PDB corresponding to the determined QoS flow to the anchor session management network element.
  • the intermediate session management network element may send the first CN PDB corresponding to the QoS flow to the anchor session management network element through the first message.
  • the intermediate session management network element may send the first CN PDB corresponding to the QoS flow to the anchor session management network element through the session modification process, the Xn or N2 handover process, or the service request process.
  • the first message may be a session update request message (for example: Nsmf_PDUSession_Update Request).
  • the first CN PDB is the N3 CN PDB
  • the intermediate session management network element is the I-SMF
  • the anchor session management network element is the SMF
  • the access network equipment is the RAN
  • the intermediate user plane network element is the I-UPF
  • the I-UPF is the intermediate user plane network element.
  • the first CN PDB configuration information configured on the SMF is Table 4 as an example. If the user plane connection of the QoS flow passes through RAN2 and I-UPF1, and the 5QI of the QoS flow is 5QI2, it is determined that the QoS flow corresponds to N3 CN PDB3.
  • the I-SMF can send the N3 CN PDB3 corresponding to the QoS flow to the SMF through the session update request message.
  • the intermediate session management network element can be based on the topological combination of the access network device and the intermediate user plane network element through which the user plane connection of the QoS flow passes and
  • the first CN PDB configuration information configured on the intermediate session management network element determines the first CN PDB list corresponding to the topology combination. For example, the intermediate session management network element selects the first CN PDB list corresponding to the topology combination from the first CN PDB configuration information.
  • the first CN PDB list may include a correspondence between at least one 5QI and at least one first CN PDB, wherein one 5QI may correspond to one first CN PDB.
  • the intermediate session management network element may send the first CN PDB list to the anchor session management network element through a second message.
  • the intermediate session management network element may send the first CN PDB list to the anchor session management network element through the session establishment process.
  • the second message may be a session creation request message (for example: Nsmf_PDUSession_Create Request).
  • the anchor session management network element receives the first CN PDB list, and when the anchor session management network element obtains the policy associated with the session from the PCF, it can determine the 5QI of the QoS flow included in the session.
  • the anchor session management network element further determines the first CN PDB corresponding to the QoS flow from the first CN PDB list according to the 5QI of the QoS flow.
  • the first CN PDB is the N3 CN PDB
  • the intermediate session management network element is the I-SMF
  • the anchor session management network element is the SMF
  • the access network equipment is the RAN
  • the intermediate user plane network element is the I-UPF
  • the I-UPF is the intermediate user plane network element.
  • the first CN PDB configuration information configured on the SMF is Table 4 as an example. If the user plane connection of the QoS flow passes through RAN2 and I-UPF1, since the 5QI of the QoS flow is not obtained, the I-SMF determines RAN2 and I from Table 4 according to the user plane connection of the QoS flow passing through RAN2 and I-UPF1.
  • the first CN PDB list corresponding to the UPF1 topology combination the first CN PDB list including the corresponding relationship between 5QI1 and N3 CN PDB2 and the corresponding relationship between 5QI2 and N3 CN PDB3.
  • the I-SMF may send the first CN PDB list to the SMF through a session creation request message.
  • the SMF obtains the policy associated with the session from the PCF, if it is determined that the 5QI of the QoS flow included in the session is 5QI1, it can be determined from the first CN PDB list that the N3 CN PDB corresponding to the QoS flow is N3 CN PDB2.
  • the anchor session management network element obtains a second CN PDB corresponding to the QoS flow, where the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element, wherein the anchor The point session management network element is connected to the anchor point user plane network element.
  • the anchor session management network element can manage the session management at the anchor point according to the topology combination of the intermediate user plane network element and the anchor user plane network element through which the user plane connection of the QoS flow passes, the 5QI of the QoS flow, and the configuration of the anchor point session management network.
  • the second CN PDB configuration information on the network element determines the second CN PDB corresponding to the QoS flow.
  • the anchor session management network element selects the second CN PDB corresponding to the topology combination and the 5QI of the QoS flow from the second CN PDB configuration information as the second CN PDB corresponding to the QoS flow.
  • the second CN PDB is the N9 CN PDB
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the intermediate user plane network element is I-UPF
  • the anchor user plane network element is UPF
  • the configuration information of the second CN PDB configured on the SMF is Table 5 as an example. If the user plane connection of the QoS flow passes through I-UPF1 and UPF1, and the 5QI of the QoS flow is 5QI2, it is determined that the QoS flow corresponds to N9 CN PDB2.
  • the anchor session management network element determines the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow is equal to the sum of the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • the first CN PDB corresponding to the QoS flow is N3 CN PDB3
  • the second CN PDB corresponding to the QoS flow is N9 CN PDB2
  • the CN PDB corresponding to the QoS flow is equal to the sum of N3 CN PDB3 and N9 CN PDB2.
  • steps S304 and S305 may also be included.
  • the anchor session management network element sends the CN PDB corresponding to the QoS flow to the access network device.
  • the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the anchor session management network element may send the CN PDB corresponding to the QoS flow to the intermediate session management network element through a session creation response message (for example: Nsmf_PDUSession_Create Response) in the session establishment process.
  • the CN PDB corresponding to the QoS flow may be included in the QoS profile (QoS profile) in the session creation response message.
  • the anchor session management network element can also send the CN PDB corresponding to the QoS flow to the intermediate session management network element through the session modification process, the Xn or N2 handover process, or the session update response message (for example: Nsmf_PDUSession_Update Response) in the service request process. .
  • the intermediate session management network element may send the CN PDB corresponding to the QoS flow to the access network device.
  • the access network device can obtain the PDB corresponding to the QoS flow according to the 5QI of the QoS flow. Further, the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the terminal equipment is UE
  • the mobility management network element is AMF
  • the access network equipment is RAN
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the intermediate user plane network element is The element is I-UPF
  • the anchor user plane network element is UPF as an example.
  • the first CN PDB configuration information configured on the I-SMF may be as shown in Table 4.
  • the second CN PDB configuration information configured on the SMF may be as shown in Table 5.
  • the UE sends a session establishment request message to the AMF, where the session establishment request message may be included in an uplink non-access stratum (non-access stratum, NAS) transmission message, and the NAS transmission message may also include UE ID, PDU Session ID.
  • NAS non-access stratum
  • AMF selects I-SMF and SMF.
  • the AMF sends a create session management context request message to the I-SMF, where the create session management context request message includes the UE ID, the PDU session identifier, the session establishment request message, and the SMF ID.
  • the create session management context request message may correspond to the service interface Nsmf_PDUSession_CreateSMContext request.
  • the I-SMF sends a create session management context response message to the AMF.
  • the create session management context response message may correspond to the service interface Nsmf_PDUSession_CreateSMContext response.
  • the I-SMF selects an I-UPF; the I-SMF initiates an N4 session creation process to the selected I-UPF.
  • the I-SMF sends a session creation request message to the SMF, where the session creation request message includes the UE ID, the I-SMF ID, the selected I-UPF ID, the PDU session identifier, and the N3 CN PDB list.
  • the N3 CN PDB list can be It is determined by the I-SMF according to the RAN and I-UPF through which the user plane connection of the QoS flow passes. For example, the I-SMF selects the N3 CN PDB list corresponding to the topological combination of RAN and I-UPF through which the user plane connection of the QoS flow passes from Table 4.
  • the session creation request message may correspond to the serviced interface Nsmf_PDUSession_Create request.
  • the SMF initiates a session management policy association establishment process to the PCF to acquire the session association policy.
  • the SMF obtains the 5QI of the QoS flow included in the session according to the policy associated with the session. It can be understood that the session may include at least one QoS flow, and the SMF may obtain 5QIs of one or more QoS flows in the at least one QoS flow, respectively.
  • the SMF selects the N3 CN PDB corresponding to the QoS flow from the N3 CN PDB list according to the 5QI of the QoS flow.
  • the SMF selects a UPF, and initiates an N4 session creation process to the selected UPF.
  • the SMF determines the N9 CN PDB corresponding to the QoS flow according to the combination of the I-UPF and the UPF topology through which the user plane connection of the QoS flow passes, and the 5QI of the QoS flow. For example, the SMF selects the topological combination of I-UPF and UPF through which the user plane connection of the QoS flow passes and the N9 CN PDB corresponding to the 5QI of the QoS flow from Table 5.
  • the SMF determines the CN PDB corresponding to the QoS flow according to the N3 CN PDB corresponding to the QoS flow and the N9 CN PDB corresponding to the QoS flow.
  • CN PDB N3 CN PDB+N9 CN PDB.
  • the SMF sends a session creation response message to the I-SMF, where the session creation response message includes the QoS rule of the QoS flow, the QoS document of the QoS flow, the QoS flow identifier of the QoS flow, and the CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow may also be included in the QoS document of the QoS flow.
  • the I-SMF sends an N1N2 message transmission request to the AMF, where the N1N2 message transmission request carries the PDU session identifier, N2 SM information, and N1 SM information.
  • the N1 SM information refers to the session-related information sent by the I-SMF to the UE
  • the N2 SM information refers to the session-related information sent by the I-SMF to the RAN.
  • the N1N2 message transmission request may also include the CN PDB corresponding to the QoS flow.
  • the N2 SM information may include the CN PDB corresponding to the QoS flow.
  • the N2 SM information may also include a session identifier, a QoS flow identifier corresponding to the QoS flow, and a QoS document corresponding to the QoS flow, and the like.
  • the N1 SM information may include QoS rules corresponding to QoS flows.
  • the AMF sends an N2 PDU session request to the RAN, where the N2 PDU session request includes the N2 SM information and the NAS message.
  • the NAS message contains N1 SM information.
  • S413 other steps of the session establishment flow. For example, air interface resource establishment, core network user plane path update, etc.
  • FIG. 7 is a schematic flowchart of a QoS flow control method provided by an embodiment of the present application.
  • This embodiment relates to a communication system including an intermediate session management network element and an anchor session management network element.
  • the management network element determines the CN PDB scenario, as shown in FIG. 7 , the method may include: S501, S502, S503, and optionally, may also include S504 and S505.
  • the execution sequence of S501, S502, S503, S504, and S505 is not limited in this embodiment of the present application.
  • the QoS flow control method in this embodiment of the present application includes but is not limited to the following steps:
  • the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element.
  • the anchor session management network element can manage the session management at the anchor point according to the topology combination of the intermediate user plane network element and the anchor user plane network element through which the user plane connection of the QoS flow passes, the 5QI of the QoS flow, and the configuration of the anchor point session management network.
  • the second CN PDB configuration information on the network element determines the second CN PDB corresponding to the QoS flow.
  • the anchor session management network element selects the second CN PDB corresponding to the topology combination and the 5QI of the QoS flow from the second CN PDB configuration information as the second CN PDB corresponding to the QoS flow.
  • the 5QI of the QoS flow may be obtained by the anchor session management network element from the policy associated with the session.
  • the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element.
  • the anchor session management network element may send the second CN PDB corresponding to the QoS flow to the intermediate session management network element through a third message in the session establishment process, or the session modification process, or the HO process, or the service request process.
  • the third message may be a session creation response message (for example: Nsmf_PDUSession_Create Response).
  • the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element through another process
  • the third message may be a session update response message (for example: Nsmf_PDUSession_Update Response).
  • the second CN PDB may be included in the QoS document and sent to the intermediate session management network element.
  • the intermediate session management network element obtains the second CN PDB by parsing the QoS document.
  • the second CN PDB is the N9 CN PDB
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the intermediate user plane network element is I-UPF
  • the anchor user plane network element is UPF
  • the configuration information of the second CN PDB configured on the SMF is Table 5 as an example. If the user plane connection of the QoS flow passes through I-UPF1 and UPF1, and the 5QI of the QoS flow is 5QI2, the SMF determines that the QoS flow corresponds to the N9 CN PDB2, and sends the N9 CN PDB2 to the I-SMF.
  • the intermediate session management network element obtains the first CN PDB corresponding to the QoS flow.
  • the intermediate session management network element may be based on the topology combination of the access network device and the intermediate user plane network element through which the user plane connection of the QoS flow passes, the 5QI of the QoS flow, and the configuration on the intermediate session management network element.
  • the first CN PDB configuration information determines the first CN PDB corresponding to the QoS flow.
  • the intermediate session management network element selects the first CN PDB corresponding to the topology combination and the 5QI of the QoS flow from the first CN PDB configuration information as the first CN PDB corresponding to the QoS flow.
  • the 5QI of the QoS flow obtained by the intermediate session management network element may be obtained during the session establishment process.
  • the anchor session management network element may send the 5QI of the QoS flow to the intermediate session management network element through the session creation response message in the session establishment process.
  • the first CN PDB is the N3 CN PDB
  • the intermediate session management network element is the I-SMF
  • the anchor session management network element is the SMF
  • the access network equipment is the RAN
  • the intermediate user plane network element is the I-UPF
  • the I-UPF is the intermediate user plane network element.
  • the first CN PDB configuration information configured on the SMF is Table 4 as an example. If the user plane connection of the QoS flow passes through RAN2 and I-UPF1, and the 5QI of the QoS flow is 5QI2, it is determined that the QoS flow corresponds to N3 CN PDB3.
  • the intermediate session management network element determines the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • the CN PDB corresponding to the QoS flow is equal to the sum of the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow.
  • the first CN PDB corresponding to the QoS flow is N3 CN PDB3
  • the second CN PDB corresponding to the QoS flow is N9 CN PDB2
  • the CN PDB corresponding to the QoS flow is equal to the sum of N3 CN PDB3 and N9 CN PDB2.
  • steps S504 and S505 may also be included.
  • the intermediate session management network element sends the CN PDB corresponding to the QoS flow to the access network device.
  • the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the intermediate session management network element may send the CN PDB corresponding to the QoS flow to the access network device, for example, the intermediate session management network element sends the CN PDB to the access network device through the N2 SM information in the N1N2 message transmission request network equipment.
  • the intermediate session management network element may include the CN PDB in the QoS document and send it to the access network device.
  • the access network device can obtain the PDB corresponding to the QoS flow according to the 5QI of the QoS flow. Further, the access network device determines the AN PDB corresponding to the QoS flow according to the PDB corresponding to the QoS flow and the CN PDB corresponding to the QoS flow.
  • the terminal device is UE
  • the mobility management network element is AMF
  • the access network device is RAN
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF as an example for description.
  • the intermediate user plane network element is an I-UPF
  • the anchor user plane network element is an UPF as an example for description.
  • the first CN PDB configuration information configured on the I-SMF may be as shown in Table 4.
  • the second CN PDB configuration information configured on the SMF may be as shown in Table 5.
  • the UE sends a session establishment request message to the AMF.
  • AMF selects I-SMF and SMF.
  • the AMF sends a Create Session Management Context Request message to the I-SMF.
  • the I-SMF sends a create session management context response message to the AMF.
  • the I-SMF selects an I-UPF; the I-SMF initiates an N4 session creation process to the selected I-UPF.
  • steps S601-S604 please refer to steps S401-S404 in the embodiment of FIG. 6, and details are not repeated here.
  • the I-SMF sends a session creation request message to the SMF, where the session creation request message includes the UE ID, the I-SMF ID, the selected I-UPF ID, and the PDU session identifier.
  • the session creation request message corresponds to the serviced interface Nsmf_PDUSession_Create request.
  • the SMF initiates a session management policy association establishment process to the PCF to acquire the session association policy.
  • the SMF obtains the 5QI of the QoS flow included in the session according to the policy associated with the session. It can be understood that the session may include at least one QoS flow, and the SMF may obtain 5QIs of one or more QoS flows in the at least one QoS flow, respectively.
  • the SMF selects a UPF, and initiates an N4 session creation process to the selected UPF.
  • the SMF determines the N9 CN PDB corresponding to the QoS flow according to the topological combination of I-UPF and UPF through which the user plane connection of the QoS flow passes, and the 5QI of the QoS flow. For example, the SMF selects the topological combination of I-UPF and UPF through which the user plane connection of the QoS flow passes and the N9 CN PDB corresponding to the 5QI of the QoS flow from Table 5.
  • the SMF sends a session creation response message to the I-SMF, where the session creation response message includes the QoS rule of the QoS flow, the QoS document of the QoS flow, the QoS flow identifier of the QoS flow, the 5QI of the QoS flow, and the N9 CN PDB corresponding to the QoS flow .
  • the N9 CN PDB corresponding to the QoS flow can also be included in the QoS document of the QoS flow. If the N9 CN PDB is included in the QoS document, the I-SMF can parse the QoS document to obtain the N9 CN corresponding to the QoS flow.
  • the 5QI of the QoS flow can also be included in the QoS document of the QoS flow, and the I-SMF can parse the QoS document to obtain the 5QI of the QoS flow.
  • the I-SMF determines the N3 CN PDB corresponding to the QoS flow according to the RAN and the I-UPF topology combination through which the user plane connection of the QoS flow passes, and the 5QI of the QoS flow. For example, the I-SMF selects the topological combination of the RAN and I-UPF through which the user plane connection of the QoS flow passes and the N3 CN PDB corresponding to the 5QI of the QoS flow from Table 4.
  • the I-SMF determines the CN PDB corresponding to the QoS flow according to the N3 CN PDB corresponding to the QoS flow and the N9 CN PDB corresponding to the QoS flow.
  • CN PDB N3 CN PDB+N9 CN PDB.
  • the I-SMF sends an N1N2 message transmission request to the AMF.
  • the AMF sends an N2 PDU session request to the RAN.
  • the I-SMF may include the CN PDB corresponding to the QoS flow in the QoS document and send it to the RAN.
  • S612 other steps of the session establishment flow. For example, air interface resource establishment, core network user plane path update, etc.
  • steps S610-S612 please refer to steps S411-S413 in the embodiment of FIG. 6, and details are not repeated here.
  • FIG. 9 is a schematic flowchart of a QoS flow control method provided by an embodiment of the present application.
  • This embodiment relates to an access network in a communication system including an intermediate session management network element and an anchor session management network element.
  • the device determines the scenario of the AN PDB according to the first CN PDB from the intermediate session management network element and the second CN PDB from the anchor session management network element, respectively.
  • the method may include: S701, S702, S703 and S704.
  • the execution sequence of S701, S702, S703, and S704 is not limited in this embodiment of the present application.
  • the QoS flow control method in this embodiment of the present application includes but is not limited to the following steps:
  • the intermediate session management network element sends the first CN PDB corresponding to the QoS flow to the access network device.
  • the anchor session management network element sends the second CN PDB corresponding to the QoS flow to the access network device.
  • the anchor session management network element may send the second CN PDB corresponding to the QoS flow to the access network device through the intermediate session management network element.
  • the anchor session management network element determines the first CN PDB corresponding to the QoS flow, and sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element.
  • the intermediate session management network element determines the second CN PDB corresponding to the QoS flow, and sends the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow to the access network device.
  • the method for determining the first CN PDB corresponding to the QoS flow by the anchor session management network element may refer to the description of S302 in the embodiment of FIG. 5, and the intermediate session management network element determines the method for determining the second CN PDB corresponding to the QoS flow.
  • the anchor session management network element may send the second CN PDB corresponding to the QoS flow to the intermediate session management network element through the fourth message in the session establishment process, or the session modification process, or the HO process, or the service request process.
  • the fourth message may be a session creation response message (for example: Nsmf_PDUSession_Create Response); if the anchor session The management network element sends the second CN PDB corresponding to the QoS flow to the intermediate session management network element through other processes, and the fourth message may be a session update response message (for example: Nsmf_PDUSession_Update Response).
  • the intermediate session management network element may also be the first CN PDB corresponding to the QoS flow and the second corresponding to the QoS flow through the fifth message in the session establishment process, or the session modification process, or the HO process, or the service request process.
  • the CN PDB is sent to the access and mobility management device, and the access and mobility management device sends the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow to the access network device through a sixth message.
  • the fifth message may be an N1N2 transmission request
  • the sixth message may be an N2 PDU session request.
  • the intermediate session management network element may also send the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow to the access network device through different messages, which are not limited in the embodiments of the present application.
  • the access network device determines the PDB corresponding to the QoS flow.
  • the access network device may determine the PDB corresponding to the QoS flow according to the 5QI of the QoS flow.
  • the access network device determines the AN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • the AN PDB corresponding to the QoS flow is equal to the value obtained by subtracting the first CN PDB corresponding to the QoS flow from the PDB corresponding to the QoS flow and subtracting the second CN PDB corresponding to the QoS flow.
  • the first CN PDB corresponding to the QoS flow is N3 CN PDB3
  • the second CN PDB corresponding to the QoS flow is N9 CN PDB2
  • AN PDB PDB-N3 CN PDB3-N9 CN PDB2.
  • the terminal equipment is UE
  • the mobility management network element is AMF
  • the access network equipment is RAN
  • the intermediate session management network element is I-SMF
  • the anchor session management network element is SMF
  • the intermediate user plane network The element is I-UPF
  • the anchor user plane network element is UPF as an example.
  • the first CN PDB configuration information configured on the I-SMF may be as shown in Table 4.
  • the second CN PDB configuration information configured on the SMF may be as shown in Table 5.
  • the UE sends a session establishment request message to the AMF.
  • AMF selects I-SMF and SMF.
  • the AMF sends a Create Session Management Context Request message to the I-SMF.
  • the I-SMF sends a create session management context response message to the AMF.
  • the I-SMF selects an I-UPF; the I-SMF initiates an N4 session creation process to the selected I-UPF.
  • steps S801-S804 please refer to steps S401-S404 in the embodiment of FIG. 6, and details are not repeated here.
  • the I-SMF sends a session creation request message to the SMF, where the session creation request message includes the UE ID, the I-SMF ID, the selected I-UPF ID, and the PDU session identifier.
  • the session creation request message corresponds to the serviced interface Nsmf_PDUSession_Create request.
  • the SMF initiates a session management policy association establishment process to the PCF to acquire the session association policy.
  • the SMF obtains the 5QI of the QoS flow included in the session according to the policy associated with the session. It can be understood that the session may include at least one QoS flow, and the SMF may obtain 5QIs of one or more QoS flows in the at least one QoS flow, respectively.
  • the SMF selects a UPF, and initiates an N4 session creation process to the selected UPF.
  • the SMF determines the N9 CN PDB corresponding to the QoS flow according to the topological combination of I-UPF and UPF through which the user plane connection of the QoS flow passes, and the 5QI of the QoS flow. For example, the SMF selects the topological combination of I-UPF and UPF through which the user plane connection of the QoS flow passes and the N9 CN PDB corresponding to the 5QI of the QoS flow from Table 5.
  • the SMF sends a session creation response message to the I-SMF, where the session creation response message includes the QoS rule of the QoS flow, the QoS document of the QoS flow, the QoS flow identifier of the QoS flow, the 5QI of the QoS flow, and the N9 CN PDB corresponding to the QoS flow .
  • the N9 CN PDB corresponding to the QoS flow may also be included in the QoS document of the QoS flow.
  • the 5QI of the QoS flow can also be included in the QoS document of the QoS flow, and the I-SMF can parse the QoS document to obtain the 5QI of the QoS flow.
  • the I-SMF determines the N3 CN PDB corresponding to the QoS flow according to the RAN and the I-UPF topology combination through which the user plane connection of the QoS flow passes, and the 5QI of the QoS flow. For example, the I-SMF selects the topological combination of the RAN and I-UPF through which the user plane connection of the QoS flow passes and the N3 CN PDB corresponding to the 5QI of the QoS flow from Table 4.
  • the I-SMF sends an N1N2 message transmission request to the AMF, where the N1N2 message transmission request includes N2 SM information and N1 SM information, and the N2 SM information includes the N3 CN PDB corresponding to the QoS flow and the N9 CN PDB corresponding to the QoS flow.
  • the AMF sends an N2 PDU session request to the RAN.
  • the N2 PDU session request may include N2 SM information, NAS messages.
  • the NAS message contains N1 SM information.
  • both the N3 CN PDB corresponding to the QoS flow and the N9 CN PDB corresponding to the QoS flow can be included in the QoS document and sent to the RAN.
  • the RAN determines the AN PDB corresponding to the QoS flow according to the N3 CN PDB corresponding to the QoS flow, the N9 CN PDB corresponding to the QoS flow, and the PDB corresponding to the 5QI of the QoS flow.
  • S813 other steps of the session establishment flow. For example, air interface resource establishment, core network user plane path update, etc.
  • the intermediate session management network element, the anchor session management network element, and the access network device include hardware structures and/or software modules corresponding to each function.
  • the units and method steps of each example described in conjunction with the embodiments disclosed in the present application can be implemented in the form of hardware, software, or a combination of hardware and software. Whether a function is performed by hardware, software, or computer software-driven hardware depends on the specific application scenarios and design constraints of the technical solution.
  • FIG. 11 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 900 may include a processing unit 910 and a transceiver unit 920 .
  • the processing unit 910 and the transceiver unit 920 may be software, hardware, or a combination of software and hardware.
  • the transceiver unit 920 may include a sending unit and a receiving unit, the sending unit is used to implement the sending function, the receiving unit is used to implement the receiving function, and the transceiver unit 920 may implement the sending function and/or the receiving function.
  • the transceiver unit can also be described as a communication unit.
  • the transceiver unit 920 may be configured to receive information sent by other devices, and may also be configured to send information to other devices.
  • the processing unit 910 may be used to perform internal processing of the device.
  • the communication apparatus 900 may correspond to the intermediate session management network element in the foregoing method embodiments, for example, the communication apparatus 900 may be an intermediate session management network element, or may be an intermediate session management network element in the intermediate session management network element. chip.
  • the communication apparatus 900 may include a unit for performing the operations performed by the intermediate session management network element in the above method embodiments, and each unit in the communication apparatus 900 is respectively used to implement the intermediate session management network element in the above method embodiments. The operation performed by the element.
  • the processing unit 910 is configured to determine to offload a first service flow in a first QoS flow, where the first QoS flow includes at least two service flows, and the at least two service flows include the first service flow. a business flow;
  • the processing unit 910 is further configured to bind the first service flow to a second QoS flow, and assign a QoS flow identifier to the second QoS flow;
  • the transceiver unit 920 is configured to send the QoS flow identifier to the anchor session management network element.
  • the communication apparatus 900 may correspond to the first session management network element, or may be a chip in the first session management network element.
  • the first session management network element may be an anchor session management network element or an intermediate session management network element. If the first session management network element is an anchor session management network element, the communication apparatus 900 may include a unit for performing the operations performed by the anchor session management network element in the above method embodiments, and the communication apparatus 900 The units in the above are respectively to implement the operations performed by the anchor session management network element in the above method embodiments.
  • the communication apparatus 900 may include a unit for performing the operations performed by the intermediate session management network element in the foregoing method embodiments, and the communication apparatus 900 Each unit is respectively to implement the operations performed by the intermediate session management network element in the foregoing method embodiments.
  • the processing unit 910 is configured to obtain the first CN PDB corresponding to the QoS flow, where the first CN PDB is the CN PDB between the access network device and the intermediate user plane network element, wherein the intermediate session management The network element is connected to the intermediate user plane network element;
  • the processing unit 910 is further configured to acquire the second CN PDB corresponding to the QoS flow, where the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element, wherein the The anchor session management network element is connected to the anchor user plane network element;
  • the processing unit 910 is further configured to determine the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow;
  • the processing unit 910 when the first session management network element is an anchor session management network element, the processing unit 910 is specifically configured to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element through the transceiver unit 920; Or, when the first session management network element is the intermediate session management network element, the processing unit 910 is specifically configured to receive the corresponding QoS flow from the anchor session management network element through the transceiver unit 920 The second CN PDB.
  • the communication apparatus 900 may correspond to the access network device in the above method embodiment, for example, the communication apparatus 900 may be an access network device or a chip in the access network device.
  • the communication apparatus 900 may include a unit for performing operations performed by the access network equipment in the above method embodiments, and each unit in the communication apparatus 900 is respectively used to implement the operations performed by the access network equipment in the above method embodiments. action performed.
  • the transceiver unit 920 is configured to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element, and receive the second CN PDB corresponding to the QoS flow from the anchor session management network element, wherein the first CN PDB corresponding to the QoS flow is received from the anchor session management network element.
  • a CN PDB is the CN PDB between the access network equipment and the intermediate user plane network element
  • the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element
  • the intermediate user plane network element The session management network element is connected to the intermediate user plane network element
  • the anchor session management network element is connected to the anchor user plane network element;
  • a processing unit 910 configured to determine the packet delay budget PDB corresponding to the QoS flow
  • the processing unit 910 is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • Text Delay Budget AN PDB is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • the transceiver unit 920 in the communication apparatus 900 may be an input/output interface.
  • the transceiver unit 920 in the communication apparatus 900 may correspond to the communication interface 1010 shown in FIG. 12
  • the processing unit 910 may correspond to the processor 1020 shown in FIG. 12 .
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application. It should be understood that the communication apparatus 1000 shown in FIG. 12 is only an example, and the communication apparatus in this embodiment of the present application may further include other modules or units, or include modules with functions similar to those of the respective modules in FIG. All modules in 12.
  • the communication device 1000 includes a communication interface 1010 and at least one processor 1020 .
  • the communication apparatus 1000 may correspond to any network element or device in an intermediate session management network element, an anchor session management network element, or an access network device.
  • At least one processor 1020 executes the program instructions, so that the communication apparatus 1000 implements the corresponding process of the method executed by the corresponding network element in the above method embodiments.
  • the communication apparatus 1000 may correspond to the intermediate session management network element in the above method embodiments, for example, the communication apparatus 100 may be an intermediate session management network element, or may be an intermediate session management network element in the intermediate session management network element. chip.
  • the communication apparatus 1000 may include components for performing the operations performed by the intermediate session management network element in the above method embodiments.
  • the processor 1020 is configured to determine to offload a first service flow in a first QoS flow, where the first QoS flow includes at least two service flows, and the at least two service flows include the first service flow. business flow;
  • the processor 1020 is further configured to bind the first service flow to a second QoS flow, and assign a QoS flow identifier to the second QoS flow;
  • the communication interface 1010 is configured to send the QoS flow identifier to the anchor session management network element.
  • the communication apparatus 1000 may correspond to the first session management network element, or may be a chip in the first session management network element.
  • the first session management network element may be an anchor session management network element or an intermediate session management network element. If the first session management network element is an anchor session management network element, the communication apparatus 1000 may include components for performing the operations performed by the anchor session management network element in the foregoing method embodiments, and the communication apparatus 1000 The components in the above are respectively to implement the operations performed by the anchor session management network element in the above method embodiments.
  • the communication apparatus 1000 may include components for performing the operations performed by the intermediate session management network element in the above method embodiments, and the communication apparatus 1000 Each component is respectively to implement the operations performed by the intermediate session management network element in the foregoing method embodiments.
  • the processor 1020 is configured to acquire the first CN PDB corresponding to the QoS flow, where the first CN PDB is the CN PDB between the access network device and the intermediate user plane network element, wherein the intermediate session management The network element is connected to the intermediate user plane network element;
  • the processor 1020 is further configured to acquire the second CN PDB corresponding to the QoS flow, where the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element, wherein the The anchor session management network element is connected to the anchor user plane network element;
  • the processor 1020 is further configured to determine the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow;
  • the processor 1020 when the first session management network element is an anchor session management network element, the processor 1020 is specifically configured to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element through the communication interface 1010; Or, when the first session management network element is the intermediate session management network element, the processor 1020 is specifically configured to receive the QoS flow corresponding to the QoS flow from the anchor session management network element through the communication interface 1010 The second CN PDB.
  • the communication apparatus 1000 may correspond to the access network device in the above method embodiment, for example, the communication apparatus 1000 may be an access network device or a chip in the access network device.
  • the communication apparatus 1000 may include components for performing the operations performed by the access network device in the above method embodiments.
  • the communication interface 1010 is configured to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element, and receive the second CN PDB corresponding to the QoS flow from the anchor session management network element, wherein the first CN PDB corresponding to the QoS flow is received from the anchor session management network element.
  • a CN PDB is the CN PDB between the access network equipment and the intermediate user plane network element
  • the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element
  • the intermediate user plane network element The session management network element is connected to the intermediate user plane network element
  • the anchor session management network element is connected to the anchor user plane network element;
  • a processor 1020 configured to determine a packet delay budget PDB corresponding to the QoS flow
  • the processor 1020 is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • Text Delay Budget AN PDB is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • the communication apparatus 1000 may further include a memory.
  • the memory may store program instructions, and at least one processor 1020 may read the program instructions stored in the memory and execute the program instructions.
  • the communication device may be a chip or a chip system
  • the chip 2000 shown in FIG. 13 includes a processor 2001 and an interface 2002 .
  • the number of processors 2001 may be one or more, and the number of interfaces 2002 may be multiple. It should be noted that the respective functions of the processor 2001 and the interface 2002 can be implemented by hardware design, software design, or a combination of software and hardware, which is not limited here.
  • the processor 2001 is configured to determine to offload the first service flow in the first QoS flow, so The first QoS flow includes at least two service flows, and the at least two service flows include the first service flow;
  • the processor 2001 is further configured to bind the first service flow to a second QoS flow, and assign a QoS flow identifier to the second QoS flow;
  • the interface 2002 is configured to send the QoS flow identifier to the anchor session management network element.
  • the processor 2001 is configured to acquire the first CN PDB corresponding to the QoS flow, where the first CN PDB is an access network device and an intermediate CN PDB between user plane network elements, wherein the intermediate session management network element is connected to the intermediate user plane network element;
  • the processor 2001 is further configured to acquire the second CN PDB corresponding to the QoS flow, where the second CN PDB is the CN PDB between the intermediate user plane network element and the anchor user plane network element, wherein the The anchor session management network element is connected to the anchor user plane network element;
  • the processor 2001 is further configured to determine the CN PDB corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow and the second CN PDB corresponding to the QoS flow;
  • the processor 2001 when the first session management network element is an anchor session management network element, the processor 2001 is specifically configured to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element through the interface 2002; or , when the first session management network element is the intermediate session management network element, the processor 2001 is specifically configured to receive the first session management network element corresponding to the QoS flow through the interface 2002 from the anchor session management network element 2 CN PDB.
  • the interface 2002 is used to receive the first CN PDB corresponding to the QoS flow from the intermediate session management network element, and receive the The second CN PDB corresponding to the QoS flow, wherein the first CN PDB is the CN PDB between the access network device and the intermediate user plane network element, and the second CN PDB is the intermediate user plane network element and the anchor CN PDB between point user plane network elements, the intermediate session management network element is connected to the intermediate user plane network element, and the anchor point session management network element is connected to the anchor point user plane network element;
  • a processor 2001 configured to determine a packet delay budget PDB corresponding to the QoS flow
  • the processor 2001 is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • Text Delay Budget AN PDB is further configured to determine the access network report corresponding to the QoS flow according to the first CN PDB corresponding to the QoS flow, the second CN PDB corresponding to the QoS flow, and the PDB corresponding to the QoS flow.
  • the chip further includes a memory 2003, where the memory 2003 is used to store necessary program instructions and data.
  • the processor in this embodiment of the present application 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), application specific integrated circuits (application specific integrated circuits) 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 present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer is made to execute any of the foregoing method embodiments.
  • a communication system in another embodiment, is also provided.
  • the communication system includes an intermediate session management network element and an anchor session management network element.
  • the communication system may further include an access network device.
  • the intermediate session management network element and the anchor session management network element may be the intermediate session management network element and the anchor session management network element provided in any of the embodiments in FIG. 3 to FIG. Steps performed by corresponding network elements in any of the embodiments in FIG. 10 ; and/or, the access network device may be the access network device provided in any of the embodiments in FIG. 3 to FIG. 10 , and used to execute the steps in FIGS. Steps performed by the access network device in any embodiment.
  • An embodiment of the present application further provides a processing apparatus, including a processor and an interface, where the processor is configured to execute the method in any of the foregoing method embodiments.
  • the above processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), a general-purpose processor, a digital signal processor (DSP), an 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, can also be system on chip (system on chip, SoC), can also be central processing It can be a central processor unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (MCU) , it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • FPGA field programmable gate array
  • FPGA field programmable gate
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a 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
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • 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-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can 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. When the computer instructions are loaded and 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, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (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 includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state discs, SSD)) etc.
  • the intermediate session management network element, the anchor session management network element or the access network equipment in each of the above apparatus embodiments and the intermediate session management network element, the anchor session management network element or the access network equipment in the method embodiments completely correspond to, Corresponding steps are performed by corresponding modules or units, for example, a communication unit (transceiver) performs the steps of receiving or sending in the method embodiment, and other steps except sending and receiving may be performed by a processing unit (processor). For functions of specific units, reference may be made to corresponding method embodiments.
  • the number of processors may be one or more.
  • 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, 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 or thread of execution, and a component may be localized on one computer or distributed among 2 or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, pass a signal through a local system based on a signal having one or more data packets (such as data from two components interacting with another component between a local system, a distributed system, or a network, such as the Internet interacting with other systems through signals). or remote process to communicate.
  • a signal having one or more data packets (such as data from two components interacting with another component between a local system, a distributed system, or a network, such as the Internet interacting with other systems through signals). or remote process to communicate.
  • B corresponding to A indicates that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean that B is only determined according to A, and B may also be determined according to A and/or other information.
  • an item includes one or more of the following: A, B, and C
  • the item can be any of the following: A; B, unless otherwise specified. ;C;A and B;A and C;B and C;A,B and C;A and A;A,A and A;A,A and B;A,A and C,A,B and B;A , C and C; B and B, B, B and B, B, B and C, C and C; C, C and C, and other combinations of A, B and C.
  • a total of three elements of A, B and C are used as examples above to illustrate the optional items of the item.
  • the intermediate session management network element, the anchor session management network element, or the access network device may perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the present application Embodiments may also perform other operations or variations of the various operations. In addition, various steps may be performed in different orders presented in the embodiments of the present application, and may not be required to perform all the operations in the embodiments of the present application.
  • 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 stand-alone 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.
  • 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: a U disk, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk and other media that can store program codes.

Landscapes

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

Abstract

La présente invention concerne un procédé de contrôle de flux de QoS et un dispositif. Le procédé de contrôle de flux de QoS comprend les étapes suivantes : un élément de réseau de gestion de session intermédiaire détermine la séparation d'un premier flux de service vis-à-vis d'un premier flux de QoS, le premier flux de QoS comprenant au moins deux flux de service, et lesdits deux flux de service ou plus comprenant le premier flux de service ; l'élément de réseau de gestion de session intermédiaire lie le premier flux de service à un second flux de QoS, et attribue un identifiant de flux de QoS au second flux de QoS ; et l'élément de réseau de gestion de session intermédiaire envoie l'identifiant de flux de QoS à un élément de réseau de gestion de session d'ancrage. Des modes de réalisation de la présente invention permettent une gestion pratique d'un premier flux de QoS et d'un premier flux de service séparé du premier flux de QoS, et peut empêcher qu'un élément de réseau de gestion de session d'ancrage attribue des identifiants de flux de QoS en double.
PCT/CN2021/094349 2020-07-31 2021-05-18 Procédé de contrôle de flux de qos et dispositif de communication WO2022022014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010769550.5A CN114071574B (zh) 2020-07-31 2020-07-31 QoS流控制方法及通信装置
CN202010769550.5 2020-07-31

Publications (1)

Publication Number Publication Date
WO2022022014A1 true WO2022022014A1 (fr) 2022-02-03

Family

ID=80036817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/094349 WO2022022014A1 (fr) 2020-07-31 2021-05-18 Procédé de contrôle de flux de qos et dispositif de communication

Country Status (2)

Country Link
CN (1) CN114071574B (fr)
WO (1) WO2022022014A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11528635B2 (en) * 2021-01-12 2022-12-13 Verizon Patent And Licensing Inc. Method and system for radio resource management and network slicing
WO2023169011A1 (fr) * 2022-03-11 2023-09-14 华为技术有限公司 Procédé et appareil de communication, et dispositif
WO2024012205A1 (fr) * 2022-07-15 2024-01-18 华为技术有限公司 Procédé, dispositif et système de communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117062145A (zh) * 2022-05-05 2023-11-14 华为技术有限公司 一种QoS控制方法和对应装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018171588A1 (fr) * 2017-03-24 2018-09-27 电信科学技术研究院有限公司 Procédé et dispositif de communication
CN109392023A (zh) * 2017-08-10 2019-02-26 北京三星通信技术研究有限公司 一种数据流的操作控制的方法及设备
CN110062426A (zh) * 2019-04-02 2019-07-26 腾讯科技（深圳）有限公司 通信方法、装置、计算机可读介质及电子设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110035437B (zh) * 2018-01-11 2021-02-23 电信科学技术研究院 一种用户面数据安全保护方法及装置
CN110166407B (zh) * 2018-02-12 2020-10-23 华为技术有限公司 QoS流处理方法、设备及系统
CN110351777B (zh) * 2018-04-03 2022-12-06 华为技术有限公司 指示业务分流的方法和装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018171588A1 (fr) * 2017-03-24 2018-09-27 电信科学技术研究院有限公司 Procédé et dispositif de communication
CN109392023A (zh) * 2017-08-10 2019-02-26 北京三星通信技术研究有限公司 一种数据流的操作控制的方法及设备
CN110062426A (zh) * 2019-04-02 2019-07-26 腾讯科技（深圳）有限公司 通信方法、装置、计算机可读介质及电子设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "New solution for KI#6", 3GPP DRAFT; S2-1900542_23.725 SOLUTION FOR KI6, vol. SA WG2, 15 January 2019 (2019-01-15), Kochi, India, pages 1 - 2, XP051590209 *
ZTE: "L-SMF clarification for solution 16: I-UPF insertion and L-SMF/L-UPF selection", 3GPP DRAFT; S2-186603 CLARIFICATION ON L-SMF IN SOLUTION 16, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG2, 26 June 2018 (2018-06-26), Vilnius, Lithuania, pages 1 - 3, XP051538077 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11528635B2 (en) * 2021-01-12 2022-12-13 Verizon Patent And Licensing Inc. Method and system for radio resource management and network slicing
US20230075476A1 (en) * 2021-01-12 2023-03-09 Verizon Patent And Licensing Inc. Method and system for radio resource management and network slicing
US11985537B2 (en) 2021-01-12 2024-05-14 Verizon Patent And Licensing Inc. Method and system for radio resource management and network slicing
WO2023169011A1 (fr) * 2022-03-11 2023-09-14 华为技术有限公司 Procédé et appareil de communication, et dispositif
WO2024012205A1 (fr) * 2022-07-15 2024-01-18 华为技术有限公司 Procédé, dispositif et système de communication

Also Published As

Publication number Publication date
CN114071574A (zh) 2022-02-18
CN114071574B (zh) 2023-12-15

Similar Documents

Publication Publication Date Title
JP7118237B2 (ja) 通信方法及び通信装置
US11917498B2 (en) Communication method and communications apparatus
WO2022022014A1 (fr) Procédé de contrôle de flux de qos et dispositif de communication
WO2020063317A1 (fr) Procédé et appareil de communication
WO2018161796A1 (fr) Procédé et appareil de traitement de connexion dans un scénario à accès multiple
US11064388B2 (en) Traffic distribution method through multi-access network in a network and network entity performing the same
WO2020200066A1 (fr) Procédé, système et appareil d'acquisition de paramètre de latence de paquet de données
US20220217611A1 (en) Service Configuration Method, Communication Apparatus, and Communication System
WO2021032131A1 (fr) Procédé et appareil de rapport d'informations de plan d'utilisateur
US11871273B2 (en) Systems and methods for user plane handling
US11178194B2 (en) Packet data unit session establishment method and network entity performing the same
KR102469973B1 (ko) 통신 방법 및 장치
US10893574B2 (en) Packet data unit session release method and network entity performing the same
WO2019100882A1 (fr) Procédé, dispositif et système de traitement de session
KR20230007473A (ko) 슬라이스 액세스 방법, 디바이스 및 시스템
WO2019201322A1 (fr) Procédé de communication et dispositif associé
US20220103482A1 (en) Maximum data burst volume (mdbv) determining method, apparatus, and system
WO2019196788A1 (fr) Procédé de communication et appareil de communication
WO2020073899A1 (fr) Procédé et appareil de transmission de données
WO2022052798A1 (fr) Procédé et appareil de commande de qos, et support de stockage lisible par processeur
US20230422016A1 (en) Network access method and apparatus
CN110138685B (zh) 一种通信方法及装置
WO2021147672A1 (fr) Procédé de traitement de session et dispositif de communication
WO2023138547A1 (fr) Procédé et appareil d'envoi d'informations de tunnel
WO2023143270A1 (fr) Procédé et appareil de communication

Legal Events

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

Ref document number: 21850944

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21850944

Country of ref document: EP

Kind code of ref document: A1