WO2022062733A1 - QoS流更新方法、设备及存储介质 - Google Patents

QoS流更新方法、设备及存储介质 Download PDF

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Publication number
WO2022062733A1
WO2022062733A1 PCT/CN2021/111534 CN2021111534W WO2022062733A1 WO 2022062733 A1 WO2022062733 A1 WO 2022062733A1 CN 2021111534 W CN2021111534 W CN 2021111534W WO 2022062733 A1 WO2022062733 A1 WO 2022062733A1
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qos flow
network element
ebi
update
arp
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PCT/CN2021/111534
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English (en)
French (fr)
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唐伟杰
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中兴通讯股份有限公司
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Publication of WO2022062733A1 publication Critical patent/WO2022062733A1/zh

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    • 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 application relates to the field of communication technologies, and in particular, to a QoS flow update method, device and storage medium.
  • An embodiment of the present application provides a QoS flow update method, which is applied to an AMF network element, including: receiving a first update request sent by an SMF network element, and updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request relationship, and send the first completion response to the SMF network element; receive the second update request triggered by the SMF network element based on the first completion response, and trigger the second update request to the RAN network element, so that the RAN network element responds to the second update request Update the ARP corresponding to the EBI of the QoS flow, and update the QoS flow.
  • Embodiments of the present application also provide a device, which includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing connection and communication between the processor and the memory, wherein the computer program When executed by the processor, the steps of the above-mentioned QoS flow update method are implemented.
  • Embodiments of the present application further provide a storage medium for computer-readable storage, where the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the above-mentioned QoS flow update method A step of.
  • FIG. 1 is a system architecture diagram of a communication system provided according to an embodiment of the present application.
  • FIG. 2 is an interactive schematic diagram of QoS flow update initiated by a PCF network element provided according to an embodiment of the present application
  • FIG. 3 is an interactive schematic diagram of QoS flow update initiated by a UDM network element provided according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for updating a QoS flow provided according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for updating a QoS flow provided according to another embodiment of the present application.
  • FIG. 6 is a schematic structural block diagram of a device provided according to an embodiment of the present application.
  • QoS refers to the collection of a series of technologies used to provide better service capabilities for network communications by using various basic technologies, so that users can obtain expected service levels in terms of throughput rate, delay jitter, delay, packet loss rate, etc.
  • the main purpose of the embodiments of the present application is to provide a QoS flow update method, device, and storage medium, which aim to reduce the frequency of interaction with the UE during the QoS flow update process, and make reasonable use of network resources.
  • Embodiments of the present application provide a QoS flow update method, device, and storage medium.
  • the QoS flow update method can be applied in the scenario of EPC (Evolved Packet Core, 4G core network) and 5G mutual switching.
  • EPC Evolved Packet Core, 4G core network
  • 5G mutual switching When the ARP of the QoS flow is changed due to the update of the QoS flow, the EBI of the QoS flow and the QoS of the QoS flow are changed by changing the EBI of the QoS flow.
  • the corresponding relationship between the ARPs of the flow, the ARP of the QoS flow is updated, so that there is no need to release and re-apply for the EBI of the QoS flow in the update process, to ensure that the EBI of the QoS flow remains unchanged, and reduce the interaction with the UE, Reasonable use of network resources.
  • FIG. 1 is a system architecture diagram of a communication system provided by an embodiment of the present application.
  • the QoS flow update method provided by the present application can be applied to the communication system shown in FIG. 1, and the communication system architecture includes 5G communication. system and 4G communication system.
  • the communication system includes UE, E-UERAN (Evolved UMTS Terrestrial Radio Access Network, evolved UMTS terrestrial radio access network, namely 4G radio access network), MME (Mobility Management Entity, mobility management entity), SGW (Serving Gateway, service gateway), UPF (User Plane Function, user plane function) + PGW-U (PDN Gateway User, PDN gateway user plane) collection, SMF (Session Management Function, session management function) + Collection of PGW-C (PDN Gateway Control, PDN Gateway Control Plane), PCF (Policy Control Function, Policy Control Function), HSS (Home Subscriber Server, Home Subscriber Server) + UDM (Unified Data Management, Unified Data Management) Collection , AMF (Access Management Function, access management function) and NG-RAN (Next Generation Radio Access Networks, 5G wireless access network).
  • E-UERAN Evolved UMTS Terrestrial Radio Access Network, evolved UMTS terrestrial radio access network, namely 4G radio access network
  • MME Mobility Management Entity
  • the S6a interface represents the communication interface between the MME and the HSS+UDM.
  • the S1-MME interface represents the communication interface between the MME and the E-TURAN.
  • the S1-U interface represents the communication interface between the E-TURAN and the SGW.
  • the S5-C interface represents the communication interface of the control plane between the SGW and the SMF+PGW-C.
  • the S5-U interface represents the communication interface of the user plane between the SGW and the UPF+PGW-U.
  • the N10 interface represents the communication interface between HSS+UDM and SMF+PGW-C.
  • the N11 interface represents the communication interface between the SMF+PGW-C and the AMF.
  • the N8 interface represents the communication interface between HSS+UDM and AMF.
  • the N15 interface represents the communication interface between the PCF and the AMF.
  • the N3 interface represents the communication interface between the UPF+PGW-U and the NG-RAN.
  • the N2 interface represents the communication interface between the NG-RAN and the AMF.
  • the N1 interface represents the communication interface between the AMF and the UE.
  • the N26 interface represents the communication interface between the MME and the AMF.
  • the UE may be a mobile phone, a computer, a handheld communication device, a handheld computing device, a vehicle-mounted device, a wearable device, a smart home device, and other devices used for communication on a wireless system.
  • E-UTRAN is a base station on the 4G side, through which the UE can access the 4G communication system;
  • NG-RAN is a base station on the 5G side, through which the UE can access the 5G communication system.
  • the MME is a 4G core network element, responsible for authentication, authorization, mobility management, and session management for the UE.
  • the SGW is a 4G core network element (core network gateway), responsible for data forwarding and downlink data storage.
  • UPF+PGW-U is the core network element shared by 4G and 5G, that is, the core network equipment jointly set up by 4G and 5G, including the functions of UPF and PGW-U.
  • the UPF is the user plane device of the 5G core network, which provides user plane services for the PDU (Protocol Data Unit) session of the UE.
  • the PGW-U is the user plane device of the 4G core network, and provides user plane services for the UE's PDN (Packet Data Network) connection.
  • UPF+PGW-U may also be referred to as PGW-U+UPF, as long as it is a device that includes UPF and PGW-U functions, it is the same as this device.
  • SMF+PGW-C is the core network element shared by 4G and 5G, that is, the core network equipment jointly set up by 4G and 5G, including the functions of SMF and PGW-C.
  • the SMF is the control plane device of the 5G core network, which provides control plane services for the PDU session of the UE; manages the PDU session of the 5G, manages the QoS of the 5G, is responsible for allocating an IP address for the UE, and is responsible for selecting the UPF for the UE.
  • PGW-C is the control plane device of the 4G core network, providing user plane services for the PDN connection of the UE; it is responsible for allocating an IP address to the UE and establishing an EPS bearer for the UE.
  • SMF+PGW-C can also be called PGW-C+SMF, as long as it is a device that includes SMF and PGW-C functions, it is the same as this device.
  • PCF is a 5G core network element, which is mainly responsible for providing policy rules and obtaining registration information related to policy decisions.
  • UDM+HSS is the core network element shared by 4G and 5G, that is, the core network equipment jointly set up by 4G and 5G, including HSS and UDM.
  • the HSS is a 4G core network device, which is used to save the user's subscription data.
  • UDM is a 5G core network device used to store user subscription data.
  • HSS+HSS can also be called HSS+UDM, as long as it is a device that includes HSS and UDM functions, it is the same as this device.
  • AMF is a 5G core network element, which is used to authenticate and authorize users and manage user mobility.
  • the N26 interface is used between the MME and the AMF to support the handover between the 5G network and the 4G network.
  • the 5G core network can configure EBI for the PDU session of the UE or the QoS flow in the PDU session.
  • FIG. 2 is a schematic diagram of interaction of a QoS flow update initiated by a PCF network element according to an embodiment of the present application.
  • the UE establishes a PDU session with the network, so that the UE is in a PDU session scenario.
  • the established session is marked to identify whether the session supports the mutual handover between EPC and 5G. For example, whether the PDU session supports the mutual handover between EPC and 5G can be indicated by modifying the field value in the session management policy of the PDU session.
  • the PDU session can be migrated to the EPC, and the PDN connection corresponding to the PDU session can be established in the EPC, and the QoS flow in the PDU session will be mapped to a PDN connection.
  • An EPS bearer is allocated, and an EBI, that is, an EPS bearer identifier, is allocated to the EPS bearer, so that the network and the UE can distinguish each EPS bearer.
  • the PCF network element triggers a QoS flow update request, wherein the ARP of the QoS flow changes.
  • the QoS flow in the PDU session will be updated, and the PCF network element triggers the QoS flow update based on the modification of the PDU session.
  • the QoS parameters in the QoS flow will change.
  • the QoS parameters include 5QI and ARP.
  • the SMF network element will trigger the first update request to request the ARP for the QoS flow. to update.
  • 5QI also known as 5G Qulity identity
  • ARP allocation and reservation priority
  • Priority defines the importance of UE resource requests. When system resources are limited, ARP determines whether a new QoS flow is Accepted or rejected.
  • the QoS flow may also include other QoS parameters.
  • QoS parameters For example, for NGBR QoS flow, it may also include reflection QoS attributes, and for GBR QoS flow, it may also include parameters such as guaranteed flow bit rate and maximum flow bit rate.
  • the SMF network element determines that the current PDU session supports the mutual handover between EPC and 5G, and sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element.
  • the SMF network element obtains the session management policy of the PDU session from the PCF network element, so as to determine whether the current PDU session supports the mutual handover between EPC and 5G according to the field value in the session management policy.
  • the SMF network element sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element, so that the AMF network element updates the QoS flow according to the first update request.
  • the SMF network element sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element, so that the AMF network element updates the QoS flow according to the first update request.
  • EBI EBI
  • the first update request includes the correspondence between the OLD ARP (historical ARP) and the EBI, and the correspondence between the NEW ARP (new ARP) to be applied for and the EBI.
  • the AMF network element updates the correspondence between the EBI and ARP of the QoS flow according to the received first update request, and sends a first completion response to the SMF network element after the update is completed.
  • the AMF network element After receiving the first update request, the AMF network element determines whether the new ARP in the first update request has a corresponding EBI. If there is no corresponding EBI, then according to the corresponding relationship between the new ARP and the EBI, the EBI corresponds to The historical ARP is updated to a new ARP to complete the update of the correspondence between the EBI and ARP of the QoS flow, and after the update is completed, the first completion response is returned to the SMF network element. The first completion response carries the corresponding relationship between the updated ARP and EBI.
  • the SMF network element triggers a second update request to the AMF network element according to the received first completion response.
  • the SMF network element After receiving the first completion response, the SMF network element judges that the EBI of the QoS flow has not changed according to the correspondence between the new ARP and EBI in the first completion response, and only needs to change the ARP in the QoS flow, that is, trigger the first
  • the second update request is sent to the AMF network element, wherein the second update request is a request to notify the network to change the ARP of the QoS flow, and the second update request carries the correspondence between the new ARP of the QoS flow that needs to be changed and the EBI.
  • the AMF network element triggers a second update request to the RAN network element, so that the RAN network element changes the ARP in the QoS flow based on the second update request.
  • the AMF network element sends a second update request to the RAN network element.
  • the second update request carries the new ARP of the QoS flow.
  • the RAN network element receives the second update request, the corresponding relationship between the new ARP of the QoS flow and the EBI is based on The EBI of the QoS flow and the corresponding ARP are changed, and after the change is completed, a second completion response is returned to the AMF network element.
  • the AMF network element returns the second completion response to the SMF network element.
  • the AMF network element returns the received second completion response to the SMF network element.
  • the SMF network element returns an update completion response to the PCF network element, indicating that the QoS flow update is completed.
  • the SMF network element After receiving the second completion response, the SMF network element considers that the QoS flow update is completed, and sends a third completion response to the PCF network element, indicating that the QoS flow update is completed.
  • FIG. 3 is a schematic diagram of interaction of another QoS flow update initiated by a UDM network element according to an embodiment of the present application.
  • the interaction process of the QoS flow update method is as follows:
  • the UE establishes a PDU session with the network, so that the UE is in a PDU session scenario.
  • the established session is marked to identify that the session supports the mutual handover between EPC and 5G. For example, whether the PDU session supports the mutual handover between EPC and 5G can be indicated by modifying the field value in the session management policy of the PDU session.
  • the PDU session can be migrated to the EPC, and the PDN connection corresponding to the PDU session can be established in the EPC, and the QoS flow in the PDU session will be mapped to a PDN connection.
  • An EPS bearer is allocated, and an EBI, that is, an EPS bearer identifier, is allocated to the EPS bearer, so that the network and the UE can distinguish each EPS bearer.
  • the UDM network element initiates a subscription update request for subscription QoS update to the SMF network element.
  • the UDM When the UDM initiates the update of the subscription QoS, it sends a subscription update request to the SMF network element, wherein the subscription update request includes the ARP of the subscription QoS.
  • the SMF network element triggers a QoS flow update request to the PCF network element based on the subscription update request.
  • the SMF network element triggers a QoS flow update request based on the subscription update request, and sends the QoS flow update request to the PCF network element, wherein the QoS flow update request includes a subscription QoS change parameter, and the change parameter includes ARP.
  • the PCF network element triggers a QoS flow update request, wherein the ARP of the QoS flow changes.
  • the QoS flow in the PDU session will be updated, and the PCF triggers the QoS flow update based on the modification of the PDU session.
  • the QoS parameters in the QoS flow will change.
  • the QoS parameters include 5QI and ARP.
  • the SMF network element will trigger the first update request to request the ARP for the QoS flow. to update.
  • 5QI also known as 5G Qulity identity
  • ARP allocation and reservation priority
  • Priority defines the importance of UE resource requests. When system resources are limited, ARP determines whether a new QoS flow is Accepted or rejected.
  • the QoS flow may also include other QoS parameters.
  • QoS parameters For example, for NGBR QoS flow, it may also include reflection QoS attributes, and for GBR QoS flow, it may also include parameters such as guaranteed flow bit rate and maximum flow bit rate.
  • the SMF network element determines that the current PDU session supports the mutual handover between EPC and 5G, and sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element.
  • the SMF network element obtains the session management policy of the PDU session from the PCF network element, so as to determine whether the current PDU session supports the mutual handover between EPC and 5G according to the field value in the session management policy.
  • the SMF network element sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element, so that the AMF network element updates the QoS flow according to the first update request.
  • the SMF network element sends a first update request to the AMF network element based on the QoS flow update request triggered by the PCF network element, so that the AMF network element updates the QoS flow according to the first update request.
  • EBI EBI
  • the first update request includes the correspondence between the OLD ARP (historical ARP) and the EBI, and the correspondence between the NEW ARP (new ARP) to be applied for and the EBI.
  • the AMF network element updates the correspondence between the EBI and ARP of the QoS flow according to the received first update request, and sends a first completion response to the SMF network element after the update is completed.
  • the AMF network element After receiving the first update request, the AMF network element determines whether the new ARP in the first update request has a corresponding EBI.
  • the corresponding historical ARP is updated to a new ARP to complete the update of the correspondence between the EBI of the QoS flow and the ARP, and after the update is completed, a first completion response is returned to the SMF network element.
  • the first completion response carries the corresponding relationship between the updated ARP and EBI.
  • the SMF network element triggers a second update request to the AMF network element according to the received first completion response.
  • the SMF network element After receiving the first completion response, the SMF network element judges that the EBI of the QoS flow has not changed according to the correspondence between the new ARP and EBI in the first completion response, and only needs to change the ARP in the QoS flow, that is, trigger the first
  • the second update request is sent to the AMF network element, wherein the second update request is a request to notify the network to change the ARP of the QoS flow, and the second update request carries the correspondence between the new ARP of the QoS flow that needs to be changed and the EBI.
  • the AMF network element triggers a second update request to the RAN network element, so that the RAN network element changes the ARP in the QoS flow based on the second update request.
  • the AMF network element sends a second update request to the RAN network element.
  • the second update request carries the new ARP of the QoS flow.
  • the RAN network element receives the second update request, the corresponding relationship between the new ARP of the QoS flow and the EBI is based on The EBI of the QoS flow and the corresponding ARP are changed, and after the change is completed, a second completion response is returned to the AMF network element.
  • the AMF network element returns the second completion response to the SMF network element.
  • the AMF network element returns the received second completion response to the SMF network element.
  • the SMF network element returns an update completion response to the PCF network element, indicating that the QoS flow update is completed.
  • the SMF network element After receiving the second completion response, the SMF network element considers that the QoS flow update is completed, and sends a third completion response to the PCF network element, indicating that the QoS flow update is completed.
  • FIG. 4 is a schematic flowchart of a method for updating a QoS flow provided by an embodiment of the present application.
  • the QoS flow update method includes steps S101 to S102.
  • Step S101 Receive a first update request sent by the SMF network element, update the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request, and send a first completion response to the SMF network element.
  • the AMF network element receives the first update request sent by the SMF network element, and then updates the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request, and sends a message to the QoS flow after the update is completed.
  • the SMF network element sends the first completion response.
  • the first update request received by the AMF network element may be triggered by the SMF network element in different scenarios.
  • receiving the first update request sent by the SMF network element includes: receiving the SMF network element based on the PCF network element.
  • the PCF network element triggers the update of the QoS flow. If the ARP in the QoS parameters of the QoS flow changes, the SMF network element will update the QoS flow triggered by the PCF network element to the AMF network element. The element sends a first update request, so that the AMF network element changes the corresponding relationship between the EBI and ARP of the QoS flow.
  • the SMF network element and the PCF network element will interact and confirm that the ARP in the QoS parameters of the subscribed QoS flow has changed, and the ARP needs to be updated.
  • the SMF network element will be based on the UDM.
  • the subscription QoS flow update triggered by the network element sends a first update request to the AMF network element, so that the AMF network element changes the corresponding relationship between the EBI and ARP of the QoS flow.
  • the SMF network element will obtain the session management policy of the PDU session from the PCF network element, so that according to the The field value in the session management policy is used to determine whether the corresponding PDU session supports the mutual handover between EPC and 5G. Only when it is determined that the PDU session supports the mutual handover between EPC and 5G, the first update request is sent to the AMF network element.
  • the AMF network element After receiving the first update request, the AMF network element will update the correspondence between the EBI of the QoS flow and the ARP based on the first update request.
  • the first update request includes the EBI of the QoS flow and the relationship between the EBI of the QoS flow and the ARP of the QoS flow. The correspondence between historical ARPs, and the correspondence between EBIs of QoS flows and new ARPs.
  • the first update request includes the correspondence between the EBI of the QoS flow that triggers the update and the historical ARP, and the correspondence between the EBI of the QoS flow and the new ARP that needs to be updated.
  • the AMF network element can send the first completion response to the SMF network element after updating the correspondence between the EBI of the QoS flow and the historical ARP. .
  • updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request includes: according to the correspondence between the EBI of the QoS flow and the new ARP, corresponding the EBI of the QoS flow
  • the historical ARP of the QoS flow is updated to the new ARP, and the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated.
  • the historical ARP corresponding to the EBI of the QoS flow can be updated to the new ARP according to the correspondence between the EBI of the QoS flow and the new ARP , to obtain the updated correspondence between the EBI of the QoS flow and the ARP, so as to complete the update of the correspondence between the EBI of the QoS flow and the ARP of the QoS flow.
  • the historical ARP corresponding to the EBI of the QoS flow is updated to a new ARP, and the corresponding relationship between the EBI and ARP of the QoS flow is directly updated.
  • the EBI of the QoS flow does not change, only the ARP of the QoS flow Changes have occurred, therefore, the EBI is kept the same during the update process, avoiding EBI reallocation.
  • Step S102 Receive a second update request triggered by the SMF network element based on the first completion response, and trigger the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • QoS flow is updated.
  • the SMF network element After the AMF network element sends the first completion response to the SMF network element, the SMF network element will trigger the second update request based on the first completion response, the AMF network element receives the second update request, and forwards the second update request to the RAN The network element enables the RAN network element to update the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • the second update request is used to notify the network to update the ARP of the QoS flow.
  • the second update request only carries the N2 message, that is, only sends the update message to the network through the N2 interface, and the update message includes the EBI corresponding to the QoS flow. the new ARP.
  • the RAN network element After the AMF network element forwards the second update request to the RAN network element, the RAN network element will update the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, and updates the QoS flow including: triggering the second update request to the RAN network element, make the RAN network element update the ARP corresponding to the EBI of the QoS flow in response to the second update request, and receive the second completion response indicated by the RAN network element; return the second completion response to the SMF network element, so that the SMF network element A third completion response is sent to the PCF network element to complete the update of the QoS flow.
  • the AMF network element sends the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request. Therefore, the RAN network element can update the ARP corresponding to the EBI of the QoS flow according to the new ARP corresponding to the EBI of the QoS flow, update the historical ARP to the new ARP, and generate a second completed ARP after the update is completed. In response, the second completion response is sent to the AMF network element.
  • the AMF network element returns the second completion response to the SMF network element, indicating that the network has completed the update of the ARP corresponding to the EBI of the QoS flow, and then the SMF network element will send the third completion response to the PCF network element, which identifies the third completion response.
  • the update of the QoS flow has been completed.
  • triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request includes: triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • the element updates the EBI of the QoS flow and the ARP corresponding to the EBI in response to the second update request.
  • the second update request may also include the correspondence between the EBI of the QoS flow and the new ARP.
  • the RAN network element may update both the EBI and the ARP of the QoS flow according to the second update request.
  • the AMF network element is used to receive the first update request sent by the SMF network element, and the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated based on the first update request, and After the update of the corresponding relationship is completed, a first completion response is sent to the SMF network element; then the second update request triggered by the SMF network element based on the first completion response is received, and the second update request is triggered to the RAN network element, so that the RAN network element responds
  • the ARP corresponding to the EBI of the QoS flow is updated according to the second update request, so as to update the QoS flow.
  • the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated, so that the EBI of the QoS flow remains unchanged, thereby reducing the information interaction with the UE during the update process and rationally using network resources.
  • FIG. 5 is a schematic flowchart of another QoS flow update method provided by an embodiment of the present application.
  • the QoS flow update method includes steps S201 to S203.
  • S201 Receive a first update request sent by an SMF network element, and update the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request.
  • the AMF network element receives the first update request sent by the SMF network element, and then updates the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request. Update the corresponding relationship with ARP, update the QoS flow, avoid the release and reallocation of the EBI in the QoS flow update process, ensure that the EBI of the QoS flow does not change, and reduce the interaction with the UE.
  • the first update request received by the AMF network element may be triggered by the SMF network element in different scenarios.
  • receiving the first update request sent by the SMF network element includes: receiving the SMF network element based on the PCF network element.
  • the PCF network element triggers the update of the QoS flow. If the ARP in the QoS parameters of the QoS flow changes, the SMF network element will update the QoS flow triggered by the PCF network element to the AMF network element. The element sends a first update request, so that the AMF network element changes the corresponding relationship between the EBI and ARP of the QoS flow.
  • the SMF network element and the PCF network element will interact and confirm that the ARP in the QoS parameters of the subscribed QoS flow has changed, and the ARP needs to be updated.
  • the SMF network element will be based on the UDM.
  • the subscription QoS flow update triggered by the network element sends a first update request to the AMF network element, so that the AMF network element changes the corresponding relationship between the EBI and ARP of the QoS flow.
  • the SMF network element will obtain the session management policy of the PDU session from the PCF network element, so that according to the The field value in the session management policy is used to determine whether the corresponding PDU session supports the mutual handover between EPC and 5G. Only when it is determined that the PDU session supports the mutual handover between EPC and 5G, the first update request is sent to the AMF network element.
  • the AMF network element After receiving the first update request, the AMF network element will update the correspondence between the EBI of the QoS flow and the ARP based on the first update request.
  • the first update request includes the EBI of the QoS flow and the relationship between the EBI of the QoS flow and the ARP of the QoS flow. The correspondence between historical ARPs, and the correspondence between EBIs of QoS flows and new ARPs.
  • the first update request includes the correspondence between the EBI of the QoS flow that triggers the update and the historical ARP, and the correspondence between the EBI of the QoS flow and the new ARP that needs to be updated.
  • the AMF network element can complete the EBI of the QoS flow and the QoS flow after updating the correspondence between the EBI of the QoS flow and the historical ARP. The correspondence between the ARPs is updated.
  • the method before updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request, includes: determining whether the new ARP has a corresponding EBI; when the new ARP does not have a corresponding EBI At the time, the step of updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request is performed.
  • the AMF network element After receiving the first update request, the AMF network element determines the correspondence between the EBI of the QoS flow and the new ARP according to the correspondence between the EBI of the QoS flow and the new ARP in the first update request. Whether the ARP already has a corresponding EBI, if there is no corresponding EBI, continue to perform the step of updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request.
  • updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request includes: according to the correspondence between the EBI of the QoS flow and the new ARP, corresponding the EBI of the QoS flow
  • the historical ARP of the QoS flow is updated to the new ARP, and the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated.
  • the historical ARP corresponding to the EBI of the QoS flow can be updated to the new ARP according to the correspondence between the EBI of the QoS flow and the new ARP , to obtain the updated correspondence between the EBI of the QoS flow and the ARP, so as to complete the update of the correspondence between the EBI of the QoS flow and the ARP of the QoS flow.
  • the historical ARP corresponding to the EBI of the QoS flow is updated to a new ARP, and the corresponding relationship between the EBI and ARP of the QoS flow is directly updated.
  • the EBI of the QoS flow does not change, only the ARP of the QoS flow Changes have occurred, therefore, the EBI is kept the same during the update process, avoiding EBI reallocation.
  • the AMF network element may send a first completion response to the SMF network element.
  • the first completion response carries the correspondence between the EBI of the updated QoS flow and the ARP of the QoS flow, that is, the correspondence between the EBI of the QoS flow and the new ARP.
  • the SMF network element After receiving the first completion response, the SMF network element determines whether the EBI of the QoS flow changes during the update process based on the correspondence between the EBI of the QoS flow and the new ARP.
  • S203 Receive a second update request triggered when the SMF network element determines that the EBI of the QoS flow does not change, and trigger the second update request to the RAN network element, so that the RAN network element updates the corresponding EBI of the QoS flow in response to the second update request ARP, to update the QoS flow.
  • the SMF network element When the SMF network element determines that the EBI of the QoS flow has not changed, it will trigger the second update request.
  • the AMF network element receives the second update request and forwards the second update request to the RAN network element, so that the RAN network element responds to the The second update request updates the ARP corresponding to the EBI of the QoS flow.
  • the second update request is used to notify the network to update the ARP of the QoS flow.
  • the second update request only carries the N2 message, that is, only sends the update message to the network through the N2 interface, and the update message includes the EBI corresponding to the QoS flow. the new ARP.
  • the RAN network element After the AMF network element forwards the second update request to the RAN network element, the RAN network element will update the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, and updates the QoS flow including: triggering the second update request to the RAN network element, make the RAN network element update the ARP corresponding to the EBI of the QoS flow in response to the second update request, and receive the second completion response indicated by the RAN network element; return the second completion response to the SMF network element, so that the SMF network element A third completion response is sent to the PCF network element to complete the update of the QoS flow.
  • the AMF network element sends the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request. Therefore, the RAN network element can update the ARP corresponding to the EBI of the QoS flow according to the new ARP corresponding to the EBI of the QoS flow, update the historical ARP to the new ARP, and generate a second completed ARP after the update is completed. In response, the second completion response is sent to the AMF network element.
  • the AMF network element returns the second completion response to the SMF network element, indicating that the network has completed the update of the ARP corresponding to the EBI of the QoS flow, and then the SMF network element will send the third completion response to the PCF network element, which identifies the third completion response.
  • the update of the QoS flow has been completed.
  • triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request includes: triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request.
  • the element updates the EBI of the QoS flow and the ARP corresponding to the EBI in response to the second update request.
  • the second update request may also include the correspondence between the EBI of the QoS flow and the new ARP.
  • the RAN network element may update both the EBI and the ARP of the QoS flow according to the second update request.
  • the AMF network element is used to receive the first update request sent by the SMF network element, and the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated based on the first update request, and After the update of the corresponding relationship is completed, a first completion response is sent to the SMF network element; then the second update request triggered by the SMF network element based on the first completion response is received, and the second update request is triggered to the RAN network element, so that the RAN network element responds
  • the ARP corresponding to the EBI of the QoS flow is updated according to the second update request, so as to update the QoS flow.
  • the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow is updated, so that the EBI of the QoS flow remains unchanged, thereby reducing the information exchange with the UE during the update process and rationally using network resources.
  • FIG. 6 is a schematic structural block diagram of a device provided by an embodiment of the present application.
  • the device 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected through a bus 303, such as an I2C (Inter-integrated Circuit) bus.
  • a bus 303 such as an I2C (Inter-integrated Circuit) bus.
  • the processor 301 is used to provide computing and control capabilities to support the operation of the entire device.
  • the processor 301 can be a central processing unit (Central Processing Unit, CPU), and the processor 301 can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC) ), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor can be a microprocessor or the processor can also be any conventional processor or the like.
  • the memory 302 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) magnetic disk, an optical disk, a U disk, a mobile hard disk, and the like.
  • ROM Read-Only Memory
  • the memory 302 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) magnetic disk, an optical disk, a U disk, a mobile hard disk, and the like.
  • FIG. 6 is only a block diagram of a part of the structure related to the embodiments of the present application, and does not constitute a limitation on the equipment to which the embodiments of the present application are applied.
  • a server may include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.
  • the processor is configured to run a computer program stored in the memory, and implement any one of the QoS flow update methods provided in the embodiments of the present application when the computer program is executed.
  • the processor is configured to run a computer program stored in the memory, and when executing the computer program, implement the following steps: receiving a first update request sent by an SMF network element, and based on the first update request Update the correspondence between the EBI of the QoS flow and the ARP of the QoS flow, and send a first completion response to the SMF network element; receive a second update request triggered by the SMF network element based on the first completion response , and trigger the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, and updates the QoS flow.
  • the first update request includes the correspondence between the EBI of the QoS flow and the historical ARP of the QoS flow, and the correspondence between the EBI of the QoS flow and the new ARP.
  • the processor when implementing the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow to be updated based on the first update request, is configured to realize: according to the correspondence between the EBI of the QoS flow and the new ARP , update the historical ARP corresponding to the EBI of the QoS flow to a new ARP, and complete the update of the correspondence between the EBI of the QoS flow and the ARP of the QoS flow.
  • the processor before implementing the corresponding relationship between the EBI of the QoS flow and the ARP of the QoS flow to be updated based on the first update request, is configured to: determine whether the new ARP has a corresponding EBI; when the new ARP When there is no corresponding EBI, the step of updating the correspondence between the EBI of the QoS flow and the ARP of the QoS flow based on the first update request is performed.
  • the processor when the processor implements sending the first completion response to the SMF network element, the processor is configured to: send the first completion response to the SMF network element, so that the SMF network element determines whether the EBI of the QoS flow is based on the first completion response. Change occurs; when receiving the second update request triggered by the SMF network element based on the first completion response, the processor is configured to implement: receiving the second update request triggered when the SMF network element determines that the EBI of the QoS flow does not change.
  • the processor when the processor receives the first update request sent by the SMF network element, the processor is configured to: receive the first update request sent by the SMF network element based on the QoS flow update triggered by the PCF network element; or receive the SMF network element. The element is based on the first update request sent by the subscription QoS flow update triggered by the UDM network element.
  • the processor when the processor triggers the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, and updates the QoS flow, it is used to achieve: Trigger the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, and receives the second completion response indicated by the RAN network element; returns the second completion response to the SMF network element, so that the SMF network element sends a third completion response to the PCF network element to complete the update of the QoS flow.
  • the processor when the processor implements triggering the second update request to the RAN network element, so that the RAN network element updates the ARP corresponding to the EBI of the QoS flow in response to the second update request, the processor is configured to implement: triggering the second update request to the RAN network element.
  • the RAN network element enables the RAN network element to update the EBI of the QoS flow and the ARP corresponding to the EBI in response to the second update request.
  • the embodiments of the present application further provide a storage medium for computer-readable storage, where the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the embodiments of the present application. Steps of any QoS flow update method provided in the specification.
  • the storage medium may be an internal storage unit of the device in the foregoing embodiment, such as a hard disk or a memory of the device.
  • the storage medium may also be an external storage device of the device, such as a pluggable hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card), etc. equipped on the device.
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

本申请实施例提供一种QoS流更新方法、设备及存储介质，属于通信技术领域。该方法包括：接收SMF网元发送的第一更新请求，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系，并向SMF网元发送第一完成响应；接收SMF网元基于第一完成响应触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新。

Description

QoS流更新方法、设备及存储介质
交叉引用
本申请基于申请号为“202011010653.X”、申请日为2020年09月23日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请涉及通信技术领域，尤其涉及一种QoS流更新方法、设备及存储介质。
背景技术
当QoS(Quality of Service，服务质量)流更新导致QoS流中的ARP(Allocation and Retention Priority，分配和保留优先级)发生变化时，需要进行EBI(EPS Bearer Identity，EPS承载标识)的释放和重新申请，才能够完成QoS流的更新，在此过程中，需要与UE(User Equipment，用户设备)进行交互，增加了与UE交互的频率，网络资源占用增加。
发明内容
本申请实施例提供一种QoS流更新方法，应用于AMF网元，包括：接收SMF网元发送的第一更新请求，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系，并向SMF网元发送第一完成响应；接收SMF网元基于第一完成响应触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新。
本申请实施例还提供一种设备，设备包括处理器、存储器、存储在存储器上并可被处理器执行的计算机程序以及用于实现处理器和存储器之间的连接通信的数据总线，其中计算机程序被处理器执行时，实现上述QoS流更新方法的步骤。
本申请实施例还提供一种存储介质，用于计算机可读存储，存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现上述QoS流更新方法的步骤。
附图说明
为了更清楚地说明本申请实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是根据本申请一个实施例提供的通信系统的系统架构图；
图2是根据本申请一个实施例提供的PCF网元发起的QoS流更新的交互示意图；
图3是根据本申请另一个实施例提供的UDM网元发起的QoS流更新的交互示意图；
图4是根据本申请一个实施例提供的QoS流更新方法的流程示意图；
图5是根据本申请另一个实施例提供的QoS流更新方法的流程示意图；
图6是根据本申请一个实施例提供的设备的结构示意框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
附图中所示的流程图仅是示例说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解、组合或部分合并，因此实际执行的顺序有可能根据实际情况改变。
应当理解，在此本申请说明书中所使用的术语仅仅是出于描述特定实施例的目的而并不意在限制本申请。如在本申请说明书和所附权利要求书中所使用的那样，除非上下文清楚地指明其它情况，否则单数形式的“一”、“一个”及“该”意在包括复数形式。
QoS指利用各种基础技术为网络通信提供更好的服务能力，使用户能够在吞吐率、延迟抖动、延迟、丢包率等方面获得预期服务水平所采取的一系列技术的集合。当QoS流(Quality of Service Flow)更新导致QoS流中的ARP发生变化时，需要进行EBI的释放和重新申请，才能够完成QoS流的更新，在此过程中，需要与UE进行交互，增加了与UE交互的频率，网络资源占用增加。
本申请实施例的主要目的在于提供一种QoS流更新方法、设备及存储介质，旨在减少QoS流更新过程中与UE的交互频率，合理利用网络资源。
本申请实施例提供一种QoS流更新方法、设备及存储介质。其中，该QoS流更新方法可应用在EPC(Evolved Packet Core，4G核心网)和5G互切换的场景中，当QoS流更新导致QoS流的ARP发生变化时，通过改变QoS流的EBI与该QoS流的ARP之间的对应关系，对QoS流的ARP进行更新，使得在更新过程中无需进行QoS流的EBI的释放与重新申请，保证QoS流的EBI不变，且减少了与UE的交互，合理使用网络资源。
请参照图1，图1为本申请实施例提供的一种通信系统的系统架构图，本申请提供的QoS流更新方法可应用于如图1所示的通信系统中，通信系统架构包括5G通信系统和4G通信系统。
如图1所示，该通信系统包括UE、E-UERAN(Evolved UMTS Terrestrial Radio Access Network，演进的UMTS陆地无线接入网，也即4G无线接入网)、MME(Mobility Management Entity，移动性管理实体)、SGW(Serving Gateway，服务网关)、UPF(User Plane Function，用户平面功能)+PGW-U(PDN Gateway User，PDN网关用户面)的合集、SMF(Session Management Function，会话管理功能)+PGW-C(PDN Gateway Control，PDN网关控制面)的合集、PCF(Policy Control Function，策略控制功能)、HSS(Home Subscriber Server，归属签约服务器)+UDM(Unified Data Management，统一数据管理)的合集、AMF(Access Management Function，接入管理功能)以及NG-RAN(Next Generation Radio Access Networks，5G无线接入网)。
其中，S6a接口表示MME与HSS+UDM之间的通信接口。S1-MME接口表示MME与E-TURAN 之间的通信接口。S1-U接口表示E-TURAN与SGW之间的通信接口。S5-C接口表示SGW与SMF+PGW-C之间的控制面的通信接口。S5-U接口表示SGW与UPF+PGW-U之间的用户面的通信接口。N10接口表示HSS+UDM与SMF+PGW-C之间的通信接口。N11接口表示SMF+PGW-C与AMF之间的通信接口。N8接口表示HSS+UDM与AMF之间的通信接口。N15接口表示PCF与AMF之间的通信接口。N3接口表示UPF+PGW-U与NG-RAN之间的通信接口。N2接口表示NG-RAN与AMF之间的通信接口。N1接口表示AMF与UE之间的通信接口。N26接口表示MME与AMF之间的通信接口。
其中，UE可以是手机、电脑、手持通信设备、手持计算设备、车载设备、可穿戴设备、智能家居设备以及用于在无线系统上进行通信的其他设备。
E-UTRAN为4G侧基站，UE通过该基站可以接入4G通信系统；NG-RAN为5G侧基站，UE通过该基站可以接入5G通信系统。
MME为4G核心网网元，负责对UE进行鉴权、授权，移动性管理，会话管理。
SGW为4G核心网网元(核心网网关)，负责数据的转发，下行数据存储等。
UPF+PGW-U为4G和5G共用的核心网网元，即4G和5G合设的核心网设备，包括UPF和PGW-U的功能。其中，UPF是5G核心网的用户面设备，为UE的PDU(协议数据单元，Protocol Data Unit)会话提供用户面服务。PGW-U是4G核心网的用户面设备，为UE的PDN(分组数据网络，Packet Data Network)连接提供用户面服务。UPF+PGW-U也可被称为PGW-U+UPF，只要是包含UPF和PGW-U功能的设备均与本设备相同。
SMF+PGW-C为4G和5G共用的核心网网元，即4G和5G合设的核心网设备，包括SMF和PGW-C的功能。其中，SMF是5G核心网的控制面设备，为UE的PDU会话提供控制面服务；对5G的PDU会话进行管理，对5G的QoS进行管理，负责为UE分配IP地址，负责为UE选择UPF。PGW-C为4G核心网的控制面设备，为UE的PDN连接提供用户面服务；负责为UE分配IP地址，为UE建立EPS承载。SMF+PGW-C也可被称为PGW-C+SMF，只要是包含SMF和PGW-C功能的设备均与本设备相同。
PCF为5G核心网网元，主要负责提供策略规则以及获取与策略决策相关的注册信息等。
UDM+HSS为4G和5G共用的核心网网元，即4G和5G合设的核心网设备，包括HSS和UDM。其中，HSS为4G核心网设备，用于保存用户的签约数据。UDM为5G核心网设备，用于保存用户的签约数据。UDM+HSS也可被称为HSS+UDM，只要是包含HSS和UDM功能的设备均与本设备相同。
AMF为5G核心网网元，用于对用户进行鉴权、授权，对用户的移动性进行管理。
MME和AMF之间采用N26接口以支持5G网络与4G网络间的切换，此时5G核心网可以为UE的PDU会话或PDU会话中的QoS流配置EBI。
为了便于理解，以下将结合图1中的通信系统对本申请的实施例提供的QoS流更新方法进行详细介绍，在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。需知，上述的通信系统并不构成对本申请实施例提供的QoS流更新方法应用场景的限定。
请参照图2，图2为本申请实施例提供的一种PCF网元发起的QoS流更新的交互示意图。
如图2所示，当PCF网元发起QoS流更新，触发EBI和ARP的更新时，该QoS流更新方法的交互过程具体为：
1、UE与网络建立PDU会话，使UE处在PDU会话场景下。
PDU会话的建立过程可参照现有的建立流程，在此不再赘述。在PDU会话建立时，对建立的该会话进行标记，以标识该会话是否支持EPC和5G的互切换。例如可以通过修改PDU会话的会话管理策略中的字段值来表示PDU会话是否支持EPC和5G的互切换。
对于支持EPC和5G的互切换的PDU会话，可以将该PDU会话迁移到EPC中，并在EPC中建立该PDU会话对应的PDN连接，并且，PDU会话中的QoS流会在PDN连接中映射一个EPS承载，并为该EPS承载分配一个EBI，也即EPS承载标识，以便于网络和UE对每个EPS承载进行区分。
2、PCF网元触发QoS流更新请求，其中，QoS流的ARP发生变化。
当UE或网络发起PDU会话的修改时，PDU会话中的QoS流会发生更新，PCF网元基于PDU会话的修改触发QoS流更新。当QoS流发生更新时，QoS流中的QoS参数会发生变化，其中，QoS参数包括5QI、ARP，当ARP发生变化时，SMF网元即会触发第一更新请求，以请求对QoS流的ARP进行更新。
其中，5QI，也即5G Qulity identity，用于索引一个5G QoS特性。ARP，也即分配和保留优先级，包含优先级、抢占能力、可被抢占等信息，优先级定义了UE资源请求的重要性，在系统资源受限时，ARP决定了一个新的QoS流是被接受还是被拒绝。
根据QoS流类型的不同，QoS流还可以包括其他的QoS参数。比如，对于NGBR QoS流还可以包括反射QoS属性，对于GBR QoS流还可以包括保证流比特率和最大流比特率等参数。
3、SMF网元确定当前PDU会话支持EPC和5G的互切换，基于PCF网元触发的QoS流更新请求向AMF网元发送第一更新请求。
SMF网元从PCF网元中获取PDU会话的会话管理策略，从而根据会话管理策略中的字段值来确定当前PDU会话是否支持EPC和5G的互切换。
若当前PDU会话支持EPC和5G的互切换，则SMF网元基于PCF网元触发的QoS流更新请求向AMF网元发送第一更新请求，以使AMF网元根据第一更新请求更新QoS流的EBI与ARP之间的对应关系。
其中，第一更新请求中包括OLD ARP(历史ARP)与EBI之间的对应关系，以及待申请的NEW ARP(新的ARP)与EBI之间的对应关系。
4、AMF网元根据接收到的第一更新请求更新QoS流的EBI与ARP之间的对应关系，并在更新完成后向SMF网元发送第一完成响应。
AMF网元接收到第一更新请求后，判断第一更新请求中的新的ARP是否存在对应的EBI，若不存在对应的EBI，则根据新的ARP与EBI之间的对应关系，将EBI对应的历史ARP更新为新的ARP，以完成QoS流的EBI与ARP之间的对应关系的更新，并在完成更新后，向SMF网元返回第一完成响应。其中，第一完成响应中携带更新完成的新的ARP与EBI之间的对应关系。
5、SMF网元根据接收到的第一完成响应触发第二更新请求至AMF网元。
SMF网元收到第一完成响应后，根据第一完成响应中新的ARP与EBI之间的对应关系判断QoS流的EBI未发生变化，只需要对QoS流中的ARP进行变更，即触发第二更新请求至AMF网元，其中，第二更新请求为通知网络对QoS流的ARP进行变更的请求，第二更新请求中携带需要变更的QoS流的新的ARP与EBI之间的对应关系。
6、AMF网元触发第二更新请求至RAN网元，使RAN网元基于该第二更新请求对QoS流中 的ARP进行变更。
AMF网元向RAN网元发送第二更新请求，第二更新请求中携带QoS流新的ARP，RAN网元接收到第二更新请求后，基于QoS流的新的ARP与EBI之间的对应关系对QoS流的EBI以及对应的ARP进行变更，并在变更完成后，向AMF网元返回第二完成响应。
7、AMF网元将第二完成响应返回至SMF网元。
AMF网元将接收到的第二完成响应返回至SMF网元。
8、SMF网元返回更新完成响应至PCF网元，表示QoS流更新完成。
SMF网元在接收到第二完成响应后，认为QoS流更新完成，向PCF网元发送第三完成响应，标识QoS流更新完成。
请参照图3，图3为本申请实施例提供的另一种UDM网元发起的QoS流更新的交互示意图。
如图3所示，当UDM网元发起签约QoS更新，触发EBI和ARP的更新时，该QoS流更新方法的交互过程具体为：
1、UE与网络建立PDU会话，使UE处在PDU会话场景下。
PDU会话的建立过程可参照现有的建立流程，在此不再赘述。在PDU会话建立时，对建立的该会话进行标记，以标识该会话支持EPC和5G的互切换。例如可以通过修改PDU会话的会话管理策略中的字段值来表示PDU会话是否支持EPC和5G的互切换。
对于支持EPC和5G的互切换的PDU会话，可以将该PDU会话迁移到EPC中，并在EPC中建立该PDU会话对应的PDN连接，并且，PDU会话中的QoS流会在PDN连接中映射一个EPS承载，并为该EPS承载分配一个EBI，也即EPS承载标识，以便于网络和UE对每个EPS承载进行区分。
2、UDM网元发起签约QoS更新的签约更新请求至SMF网元。
UDM发起签约QoS的更新时，向SMF网元发送签约更新请求，其中，签约更新请求中包括签约QoS的ARP。
3、SMF网元基于该签约更新请求触发QoS流更新请求至PCF网元。
SMF网元基于该签约更新请求触发QoS流更新请求，并将QoS流更新请求发送至PCF网元，其中，该QoS流更新请求中包括签约QoS的变化参数，变化参数中包括ARP。
4、PCF网元触发QoS流更新请求，其中，QoS流的ARP发生变化。
当UE或网络发起PDU会话的修改时，PDU会话中的QoS流会发生更新，PCF基于PDU会话的修改触发QoS流更新。当QoS流发生更新时，QoS流中的QoS参数会发生变化，其中，QoS参数包括5QI、ARP，当ARP发生变化时，SMF网元即会触发第一更新请求，以请求对QoS流的ARP进行更新。
其中，5QI，也即5G Qulity identity，用于索引一个5G QoS特性。ARP，也即分配和保留优先级，包含优先级、抢占能力、可被抢占等信息，优先级定义了UE资源请求的重要性，在系统资源受限时，ARP决定了一个新的QoS流是被接受还是被拒绝。
根据QoS流类型的不同，QoS流还可以包括其他的QoS参数。比如，对于NGBR QoS流还可以包括反射QoS属性，对于GBR QoS流还可以包括保证流比特率和最大流比特率等参数。
5、SMF网元确定当前PDU会话支持EPC和5G的互切换，基于PCF网元触发的QoS流更新请求向AMF网元发送第一更新请求。
SMF网元从PCF网元中获取PDU会话的会话管理策略，从而根据会话管理策略中的字段值来确定当前PDU会话是否支持EPC和5G的互切换。
若当前PDU会话支持EPC和5G的互切换，则SMF网元基于PCF网元触发的QoS流更新请求向AMF网元发送第一更新请求，以使AMF网元根据第一更新请求更新QoS流的EBI与ARP之间的对应关系。
其中，第一更新请求中包括OLD ARP(历史ARP)与EBI之间的对应关系，以及待申请的NEW ARP(新的ARP)与EBI之间的对应关系。
6、AMF网元根据接收到的第一更新请求更新QoS流的EBI与ARP之间的对应关系，并在更新完成后向SMF网元发送第一完成响应。
AMF网元接收到第一更新请求后，根据判断第一更新请求中的新的ARP是否存在对应的EBI，若不存在对应的EBI，则根据新的ARP与EBI之间的对应关系，将EBI对应的历史ARP更新为新的ARP，以完成QoS流的EBI与ARP之间的对应关系的更新，并在完成更新后，向SMF网元返回第一完成响应。其中，第一完成响应中携带更新完成的新的ARP与EBI之间的对应关系。
7、SMF网元根据接收到的第一完成响应触发第二更新请求至AMF网元。
SMF网元收到第一完成响应后，根据第一完成响应中新的ARP与EBI之间的对应关系判断QoS流的EBI未发生变化，只需要对QoS流中的ARP进行变更，即触发第二更新请求至AMF网元，其中，第二更新请求为通知网络对QoS流的ARP进行变更的请求，第二更新请求中携带需要变更的QoS流的新的ARP与EBI之间的对应关系。
8、AMF网元触发第二更新请求至RAN网元，使RAN网元基于该第二更新请求对QoS流中的ARP进行变更。
AMF网元向RAN网元发送第二更新请求，第二更新请求中携带QoS流新的ARP，RAN网元接收到第二更新请求后，基于QoS流的新的ARP与EBI之间的对应关系对QoS流的EBI以及对应的ARP进行变更，并在变更完成后，向AMF网元返回第二完成响应。
9、AMF网元将第二完成响应返回至SMF网元。
AMF网元将接收到的第二完成响应返回至SMF网元。
10、SMF网元返回更新完成响应至PCF网元，表示QoS流更新完成。
SMF网元在接收到第二完成响应后，认为QoS流更新完成，向PCF网元发送第三完成响应，标识QoS流更新完成。
请参照图4，图4为本申请实施例提供的一种QoS流更新方法的流程示意图。
如图4所示，该QoS流更新方法包括步骤S101至步骤S102。
步骤S101、接收SMF网元发送的第一更新请求，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系，并向SMF网元发送第一完成响应。
当QoS流发生更新时，AMF网元接收SMF网元发送的第一更新请求，然后基于第一更新请求更新QoS流的EBI与该QoS流的ARP之间的对应关系，并在更新完成后向SMF网元发送第一完成响应。通过对QoS流的EBI和ARP之间的对应关系的更新，对QoS流进行更新，避免QoS流更新过程中EBI的释放与重新分配，保证了QoS流在更新后其EBI不发生变化，减少与UE的交互。
AMF网元接收到的第一更新请求，可以是SMF网元在不同的场景下触发的，在一实施例 中，接收SMF网元发送的第一更新请求，包括：接收SMF网元基于PCF网元触发的QoS流更新发送的第一更新请求；或者接收SMF网元基于UDM网元触发的签约QoS流更新发送的第一更新请求。
当UE或网络发起PDU会话的修改时，PCF网元触发QoS流的更新，若该QoS流的QoS参数中的ARP发生变化，SMF网元会基于PCF网元触发的QoS流更新，向AMF网元发送第一更新请求，以使AMF网元进行该QoS流的EBI与ARP之间对应关系的变更。
当UDM网元发起签约QoS流更新时，SMF网元和PCF网元会进行交互，并确认该签约QoS流的QoS参数中的ARP发生变化，需要对ARP进行进行更新，SMF网元会基于UDM网元触发的签约QoS流更新，向AMF网元发送第一更新请求，以使AMF网元进行该QoS流的EBI与ARP之间对应关系的变更。
在具体实施过程中，在确定QoS流或签约QoS流的QoS参数中的ARP发生变化，需要对ARP进行进行更新后，SMF网元会从PCF网元中获取PDU会话的会话管理策略，从而根据会话管理策略中的字段值来确定对应的PDU会话是否支持EPC和5G的互切换。当确定PDU会话支持EPC和5G的互切换时，才向AMF网元发送第一更新请求。
AMF网元在接收到第一更新请求后，会基于第一更新请求更新QoS流的EBI与ARP之间的对应关系，在一实施例中，第一更新请求包括QoS流的EBI与QoS流的历史ARP之间的对应关系，以及QoS流的EBI与新的ARP之间的对应关系。
第一更新请求中包括触发更新的QoS流的EBI与历史ARP之间的对应关系，以及QoS流的EBI与需要申请更新的新的ARP之间的对应关系。AMF网元基于QoS流的EBI与需要申请更新的新的ARP之间的对应关系，对QoS流的EBI与历史ARP之间的对应关系进行更新后，即可向SMF网元发送第一完成响应。
在一实施例中，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系，包括：根据QoS流的EBI与新的ARP之间的对应关系，将QoS流的EBI对应的历史ARP更新为新的ARP，完成QoS流的EBI与QoS流的ARP之间的对应关系的更新。
在对QoS流的EBI与QoS流的ARP之间的对应关系进行更新时，可以根据QoS流的EBI与新的ARP之间的对应关系，将QoS流的EBI对应的历史ARP更新为新的ARP，得到更新后的QoS流的EBI与ARP之间的对应关系，从而完成对QoS流的EBI与QoS流的ARP之间的对应关系的更新。
由于在更新时，将QoS流的EBI对应的历史ARP更新为新的ARP，直接对QoS流的EBI与ARP之间的对应关系进行更新，QoS流的EBI未发生变化，仅是QoS流的ARP发生了变化，因此，在更新过程中保持了EBI的不变，避免了EBI的重新分配。
步骤S102、接收SMF网元基于第一完成响应触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新。
AMF网元在向SMF网元发送第一完成响应后，SMF网元即会基于第一完成响应触发第二更新请求，AMF网元接收第二更新请求，并将该第二更新请求转发至RAN网元，使RAN网元响应于第二更新请求对QoS流的EBI对应的ARP进行更新。
其中，第二更新请求用于通知网络对该QoS流的ARP进行更新，第二更新请求中仅携带N2消息，也即仅通过N2接口向网络发送更新消息，更新消息中包括QoS流的EBI对应的新 的ARP。
AMF网元将该第二更新请求转发至RAN网元后，RAN网元即会响应于第二更新请求对QoS流的EBI对应的ARP进行更新。
在一实施例中，触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新，包括：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，并接收RAN网元表示的第二完成响应；将第二完成响应返回至SMF网元，以使SMF网元发送第三完成响应至PCF网元，完成QoS流的更新。
AMF网元将第二更新请求发送至RAN网元，使RAN网元响应于第二更新请求，更新QoS流的EBI对应的ARP，其中，由于第二更新请求中包括了QoS流的EBI对应的新的ARP，因此，RAN网元可根据QoS流的EBI对应的新的ARP，对QoS流的EBI对应的ARP进行更新，将历史ARP更新为新的ARP，并在更新完成后产生第二完成响应，将第二完成响应发送至AMF网元。
AMF网元将第二完成响应返回至SMF网元，标识网络对QoS流的EBI对应的ARP的更新已经完成，然后SMF网元即会发送第三完成响应至PCF网元，第三完成响应标识QoS流的更新已经完成。
在一实施例中，触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，包括：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI和EBI对应的ARP。
第二更新请求中除了包括QoS流的EBI对应的新的ARP之外，还可以包括QoS流的EBI与新的ARP之间的对应关系。RAN网元可以根据第二更新请求对QoS流的EBI和ARP均进行更新。
上述实施例提供的QoS流更新方法，利用AMF网元接收SMF网元发送的第一更新请求，并基于该第一更新请求更新QoS流的EBI与该QoS流的ARP之间的对应关系，并在对应关系更新完成后向SMF网元发送第一完成响应；然后再接收SMF网元基于第一完成响应触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，以对QoS流进行更新。在更新过程中，对QoS流的EBI与该QoS流的ARP之间的对应关系进行更新，使得QoS流的EBI保持不变，从而减少更新过程中与UE的信息交互，合理利用网络资源。
请参照图5，图5为本申请实施例提供的另一种QoS流更新方法的流程示意图。
如图5所示，该QoS流更新方法包括步骤S201至S203。
S201、接收SMF网元发送的第一更新请求，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系。
当QoS流发生更新时，AMF网元接收SMF网元发送的第一更新请求，然后基于第一更新请求更新QoS流的EBI与该QoS流的ARP之间的对应关系，通过对QoS流的EBI和ARP之间的对应关系的更新，对QoS流进行更新，避免QoS流更新过程中EBI的释放与重新分配，保证了QoS流的EBI不发生变化，减少与UE的交互。
AMF网元接收到的第一更新请求，可以是SMF网元在不同的场景下触发的，在一实施例中，接收SMF网元发送的第一更新请求，包括：接收SMF网元基于PCF网元触发的QoS流更新发送的第一更新请求；或者接收SMF网元基于UDM网元触发的签约QoS流更新发送的第一 更新请求。
当UE或网络发起PDU会话的修改时，PCF网元触发QoS流的更新，若该QoS流的QoS参数中的ARP发生变化，SMF网元会基于PCF网元触发的QoS流更新，向AMF网元发送第一更新请求，以使AMF网元进行该QoS流的EBI与ARP之间对应关系的变更。
当UDM网元发起签约QoS流更新时，SMF网元和PCF网元会进行交互，并确认该签约QoS流的QoS参数中的ARP发生变化，需要对ARP进行进行更新，SMF网元会基于UDM网元触发的签约QoS流更新向AMF网元发送第一更新请求，以使AMF网元进行该QoS流的EBI与ARP之间对应关系的变更。
在具体实施过程中，在确定QoS流或签约QoS流的QoS参数中的ARP发生变化，需要对ARP进行进行更新后，SMF网元会从PCF网元中获取PDU会话的会话管理策略，从而根据会话管理策略中的字段值来确定对应的PDU会话是否支持EPC和5G的互切换。当确定PDU会话支持EPC和5G的互切换时，才向AMF网元发送第一更新请求。
AMF网元在接收到第一更新请求后，会基于第一更新请求更新QoS流的EBI与ARP之间的对应关系，在一实施例中，第一更新请求包括QoS流的EBI与QoS流的历史ARP之间的对应关系，以及QoS流的EBI与新的ARP之间的对应关系。
第一更新请求中包括触发更新的QoS流的EBI与历史ARP之间的对应关系，以及QoS流的EBI与需要申请更新的新的ARP之间的对应关系。AMF网元基于QoS流的EBI与需要申请更新的新的ARP之间的对应关系，对QoS流的EBI与历史ARP之间的对应关系进行更新后，即可完成对QoS流的EBI与QoS流的ARP之间的对应关系的更新。
在一实施例中，在基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系之前，包括：确定新的ARP是否存在对应的EBI；当新的ARP不存在对应的EBI时，执行基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系的步骤。
AMF网元在接收带第一更新请求后，根据第一更新请求中QoS流的EBI与新的ARP之间的对应关系，确定QoS流的EBI与新的ARP之间的对应关系中，新的ARP是否已经存在有对应的EBI，若不存在对应的EBI，则继续执行基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系的步骤。
在一实施例中，基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系，包括：根据QoS流的EBI与新的ARP之间的对应关系，将QoS流的EBI对应的历史ARP更新为新的ARP，完成QoS流的EBI与QoS流的ARP之间的对应关系的更新。
在对QoS流的EBI与QoS流的ARP之间的对应关系进行更新时，可以根据QoS流的EBI与新的ARP之间的对应关系，将QoS流的EBI对应的历史ARP更新为新的ARP，得到更新后的QoS流的EBI与ARP之间的对应关系，从而完成对QoS流的EBI与QoS流的ARP之间的对应关系的更新。
由于在更新时，将QoS流的EBI对应的历史ARP更新为新的ARP，直接对QoS流的EBI与ARP之间的对应关系进行更新，QoS流的EBI未发生变化，仅是QoS流的ARP发生了变化，因此，在更新过程中保持了EBI的不变，避免了EBI的重新分配。
S202、向SMF网元发送第一完成响应，使SMF网元基于第一完成响应确定QoS流的EBI是否发生变化。
AMF网元在完成对QoS流的EBI与QoS流的ARP之间的对应关系的更新后，即可向SMF 网元发送第一完成响应。其中，第一完成响应中携带更新完成的QoS流的EBI与QoS流的ARP之间的对应关系，也即QoS流的EBI与新的ARP之间的对应关系。
SMF网元在接收到第一完成响应后，基于QoS流的EBI与新的ARP之间的对应关系，来确定更新过程中QoS流的EBI是否发生变化。
S203、接收SMF网元确定QoS流的EBI未发生变化时触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新。
当SMF网元确定QoS流的EBI未发生变化时，即会触发第二更新请求，AMF网元接收第二更新请求，并将该第二更新请求转发至RAN网元，使RAN网元响应于第二更新请求对QoS流的EBI对应的ARP进行更新。
其中，第二更新请求用于通知网络对该QoS流的ARP进行更新，第二更新请求中仅携带N2消息，也即仅通过N2接口向网络发送更新消息，更新消息中包括QoS流的EBI对应的新的ARP。
AMF网元将该第二更新请求转发至RAN网元后，RAN网元即会响应于第二更新请求对QoS流的EBI对应的ARP进行更新。
在一实施例中，触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，对QoS流进行更新，包括：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，并接收RAN网元表示的第二完成响应；将第二完成响应返回至SMF网元，以使SMF网元发送第三完成响应至PCF网元，完成QoS流的更新。
AMF网元将第二更新请求发送至RAN网元，使RAN网元响应于第二更新请求，更新QoS流的EBI对应的ARP，其中，由于第二更新请求中包括了QoS流的EBI对应的新的ARP，因此，RAN网元可根据QoS流的EBI对应的新的ARP，对QoS流的EBI对应的ARP进行更新，将历史ARP更新为新的ARP，并在更新完成后产生第二完成响应，将第二完成响应发送至AMF网元。
AMF网元将第二完成响应返回至SMF网元，标识网络对QoS流的EBI对应的ARP的更新已经完成，然后SMF网元即会发送第三完成响应至PCF网元，第三完成响应标识QoS流的更新已经完成。
在一实施例中，触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，包括：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI和EBI对应的ARP。
第二更新请求中除了包括QoS流的EBI对应的新的ARP之外，还可以包括QoS流的EBI与新的ARP之间的对应关系。RAN网元可以根据第二更新请求对QoS流的EBI和ARP均进行更新。
上述实施例提供的QoS流更新方法，利用AMF网元接收SMF网元发送的第一更新请求，并基于该第一更新请求更新QoS流的EBI与该QoS流的ARP之间的对应关系，并在对应关系更新完成后向SMF网元发送第一完成响应；然后再接收SMF网元基于第一完成响应触发的第二更新请求，并触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，以对QoS流进行更新。在更新过程中，对QoS流的EBI与该QoS流的ARP之间的对应关系进行更新，使得QoS流的EBI保持不变，从而减少更新过程中与UE的信息交 互，合理利用网络资源。
请参阅图6，图6为本申请实施例提供的一种设备的结构示意性框图。
如图6所示，设备300包括处理器301和存储器302，处理器301和存储器302通过总线303连接，该总线比如为I2C(Inter-integrated Circuit)总线。
具体地，处理器301用于提供计算和控制能力，支撑整个设备的运行。处理器301可以是中央处理单元(Central Processing Unit，CPU)，该处理器301还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。其中，通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
具体地，存储器302可以是Flash芯片、只读存储器(ROM，Read-Only Memory)磁盘、光盘、U盘或移动硬盘等。
本领域技术人员可以理解，图6中示出的结构，仅仅是与本申请实施例方案相关的部分结构的框图，并不构成对本申请实施例方案所应用于其上的设备的限定，具体的服务器可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
其中，所述处理器用于运行存储在存储器中的计算机程序，并在执行所述计算机程序时实现本申请实施例提供的任意一种所述的QoS流更新方法。
在一实施例中，所述处理器用于运行存储在存储器中的计算机程序，并在执行所述计算机程序时实现如下步骤：接收SMF网元发送的第一更新请求，基于所述第一更新请求更新QoS流的EBI与所述QoS流的ARP之间的对应关系，并向所述SMF网元发送第一完成响应；接收所述SMF网元基于所述第一完成响应触发的第二更新请求，并触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI对应的ARP，对所述QoS流进行更新。
在一实施例中，第一更新请求包括QoS流的EBI与QoS流的历史ARP之间的对应关系，以及QoS流的EBI与新的ARP之间的对应关系。
在一实施例中，处理器在实现基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系时，用于实现：根据QoS流的EBI与新的ARP之间的对应关系，将QoS流的EBI对应的历史ARP更新为新的ARP，完成QoS流的EBI与QoS流的ARP之间的对应关系的更新。
在一实施例中，处理器在实现基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系之前，用于实现：确定新的ARP是否存在对应的EBI；当新的ARP不存在对应的EBI时，执行基于第一更新请求更新QoS流的EBI与QoS流的ARP之间的对应关系的步骤。
在一实施例中，处理器在实现向SMF网元发送第一完成响应时，用于实现：向SMF网元发送第一完成响应，使SMF网元基于第一完成响应确定QoS流的EBI是否发生变化；处理器在实现接收SMF网元基于第一完成响应触发的第二更新请求时，用于实现：接收SMF网元确定QoS流的EBI未发生变化时触发的第二更新请求。
在一实施例中，处理器在实现接收SMF网元发送的第一更新请求时，用于实现：接收SMF网元基于PCF网元触发的QoS流更新发送的第一更新请求；或者接收SMF网元基于UDM网元触发的签约QoS流更新发送的第一更新请求。
在一实施例中，处理器在实现触发第二更新请求至RAN网元，使RAN网元响应于第二更 新请求更新QoS流的EBI对应的ARP，对QoS流进行更新时，用于实现：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP，并接收RAN网元表示的第二完成响应；将第二完成响应返回至SMF网元，以使SMF网元发送第三完成响应至PCF网元，完成QoS流的更新。
在一实施例中，处理器在实现触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI对应的ARP时，用于实现：触发第二更新请求至RAN网元，使RAN网元响应于第二更新请求更新QoS流的EBI和EBI对应的ARP。
需要说明的是，所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，上述描述的设备的具体工作过程，可以参考前述QoS流更新方法实施例中的对应过程，在此不再赘述。
本申请实施例还提供一种存储介质，用于计算机可读存储，存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以实现如本申请实施例说明书提供的任一项QoS流更新方法的步骤。
其中，存储介质可以是前述实施例的设备的内部存储单元，例如设备的硬盘或内存。存储介质也可以是设备的外部存储设备，例如设备上配备的插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digital，SD)卡，闪存卡(Flash Card)等。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施例中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
应当理解，在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。以上，仅为本申请的具体 实施例，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种QoS流更新方法，应用于AMF网元，包括：
    接收SMF网元发送的第一更新请求，基于所述第一更新请求更新QoS流的EBI与所述QoS流的ARP之间的对应关系，并向所述SMF网元发送第一完成响应；
    接收所述SMF网元基于所述第一完成响应触发的第二更新请求，并触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI对应的ARP，对所述QoS流进行更新。
  2. 根据权利要求1所述的QoS流更新方法，其中，所述第一更新请求包括所述QoS流的EBI与所述QoS流的历史ARP之间的对应关系，以及所述QoS流的EBI与新的ARP之间的对应关系。
  3. 根据权利要求2所述的QoS流更新方法，其中，所述基于所述第一更新请求更新QoS流的EBI与所述QoS流的ARP之间的对应关系，包括：
    根据所述QoS流的EBI与新的ARP之间的对应关系，将所述QoS流的EBI对应的历史ARP更新为所述新的ARP，完成QoS流的EBI与所述QoS流的ARP之间的对应关系的更新。
  4. 根据权利要求2所述的QoS流更新方法，其中，在所述基于所述第一更新请求更新QoS流的EBI与所述QoS流的ARP之间的对应关系之前，包括：
    确定所述新的ARP是否存在对应的EBI；
    当所述新的ARP不存在对应的EBI时，执行所述基于所述第一更新请求更新QoS流的EBI与所述QoS流的ARP之间的对应关系的步骤。
  5. 根据权利要求1至4中任一项所述的QoS流更新方法，其中，所述向所述SMF网元发送第一完成响应，包括：
    向所述SMF网元发送第一完成响应，使所述SMF网元基于所述第一完成响应确定所述QoS流的EBI是否发生变化；
    所述接收所述SMF网元基于所述第一完成响应触发的第二更新请求，包括：
    接收所述SMF网元确定所述QoS流的EBI未发生变化时触发的第二更新请求。
  6. 根据权利要求1至5中任一项所述的QoS流更新方法，其中，所述接收SMF网元发送的第一更新请求，包括：
    接收SMF网元基于PCF网元触发的QoS流更新发送的第一更新请求；或者
    接收SMF网元基于UDM网元触发的签约QoS流更新发送的第一更新请求。
  7. 根据权利要求1至6中任一项所述的QoS流更新方法，其中，所述触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI对应的ARP，对所述QoS流进行更新，包括：
    触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI对应的ARP，并接收所述RAN网元表示的第二完成响应；
    将所述第二完成响应返回至所述SMF网元，以使所述SMF网元发送第三完成响应至PCF网元，完成所述QoS流的更新。
  8. 根据权利要求1至7中任一项所述的QoS流更新方法，其中，所述触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI对应的ARP， 包括：
    触发所述第二更新请求至RAN网元，使所述RAN网元响应于所述第二更新请求更新所述QoS流的EBI和所述EBI对应的ARP。
  9. 一种设备，所述设备包括处理器、存储器、存储在所述存储器上并可被所述处理器执行的计算机程序以及用于实现所述处理器和所述存储器之间的连接通信的数据总线，其中所述计算机程序被所述处理器执行时，实现如权利要求1至8中任一项所述的QoS流更新方法的步骤。
  10. 一种存储介质，用于计算机可读存储，所述存储介质存储有一个或者多个程序，所述一个或者多个程序可被一个或者多个处理器执行，以实现权利要求1至8中任一项所述的QoS流更新方法的步骤。
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