WO2023185678A1 - 一种分流处理方法、设备及存储介质 - Google Patents

一种分流处理方法、设备及存储介质 Download PDF

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Publication number
WO2023185678A1
WO2023185678A1 PCT/CN2023/083700 CN2023083700W WO2023185678A1 WO 2023185678 A1 WO2023185678 A1 WO 2023185678A1 CN 2023083700 W CN2023083700 W CN 2023083700W WO 2023185678 A1 WO2023185678 A1 WO 2023185678A1
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Prior art keywords
information
domain
smf
visited domain
visited
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PCT/CN2023/083700
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English (en)
French (fr)
Inventor
李永竞
王丹
孙滔
陆璐
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2023185678A1 publication Critical patent/WO2023185678A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H04W8/065—Registration at serving network Location Register, VLR or user mobility server involving selection of the user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Definitions

  • FIG 1 is a schematic diagram of the fifth-generation mobile communications (5th-Generation, 5G) network architecture in the case of Home Routed (HR) roaming.
  • Figure 2 is a schematic diagram of the interfaces between network functions in the case of HR roaming.
  • the 5G network architecture is divided into Roaming and non-roaming scenarios, roaming scenarios are divided into local breakout (LBO) roaming and HR roaming scenarios.
  • LBO local breakout
  • the 5G network architecture under HR roaming is shown in Figure 1.
  • Visited Public Land Mobile Network Visited Public Land Mobile Network
  • HPLMN Home Public Land Mobile Network
  • Edge computing is one of the important key technologies of 5G networks. Edge computing can be supported by the uplink classifier (ULCL) to achieve local offloading capabilities.
  • ULCL uplink classifier
  • UE user equipment
  • DN data network
  • UPF User Plane Function
  • UPF serves as a user plane function and can be used as a ULCL uplink classification
  • the server is inserted into the Protocol Data Unit (PDU) session by the Session Management Function (SMF) to perform data offloading.
  • PDU Protocol Data Unit
  • SMF Session Management Function
  • the ULCL connects two or more different UPFs as PDU Session Anchor (PSA), and each PSA can be connected to a different data network.
  • PSA PDU Session Anchor
  • the present disclosure provides a offload processing method, equipment and storage medium to solve the problem that there is no solution to support the use of edge computing capabilities in Home Routed roaming scenarios.
  • a method of sending information including:
  • the SMF of the home domain sends one or a combination of the following information to the SMF of the visited domain:
  • the EAS information of the visited domain The EAS information of the visited domain, the ECS address of the visited domain, the related information of the visited domain AF, the SMF local distribution information authorized to the visited domain, and the distribution policy.
  • the EAS information of the visited domain in the information is used to configure the visited domain EASDF in the SMF of the visited domain.
  • Implementation further includes:
  • the home domain SMF receives the fifth information sent by the visited domain SMF.
  • the fifth information includes one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for local offloading capability in the visited domain.
  • the EAS information of the visited domain received by the SMF in the visited domain is obtained by the SMF in the home domain from the NEF in the home domain.
  • the SMF of the visited domain receives the relevant information of the AF of the visited domain, and the SMF of the home domain obtains it from the PCF of the home domain.
  • the SMF of the home domain obtains sixth information from the UDM of the home domain, and the sixth information indicates local offloading.
  • the SMF in the visited domain After the SMF in the visited domain receives the first information sent by the NF in the home domain, it performs local offloading.
  • the NF of the home domain is SMF, or PCF, or UDM.
  • Implementation further includes:
  • the SMF of the visited domain sends the traffic offload policy to the UPF of the visited domain.
  • local diversion is carried out, including:
  • the first information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • the SMF of the visited domain sends EAS information to the visited domain EASDF.
  • a business request processing method including:
  • the UPF of the visited domain receives the second information initiated by the UE and sends the second information to the SMF of the home domain.
  • the second information is sent to the SMF of the home domain, passing through the SMF of the visited location or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • Implementation further includes:
  • the UPF of the visited domain sends the second information to the DNS server of the visited domain for processing.
  • Implementation further includes:
  • the UPF of the visited domain After receiving the DNS feedback, the UPF of the visited domain returns the feedback information to the UE through the ULCL of the visited domain.
  • a PCF selection method including:
  • the SMF of the visited domain searches for the PCF in the visited domain, and performs SM Policy Association with the PCF or triggers SM Policy Association Modification.
  • the SMF of the visited domain searches for the visited domain PCF in the context of a Home Routed PDU session.
  • Implementation further includes:
  • Implementation further includes:
  • the SMF of the visited domain performs ULCL insertion or update based on the third information, and selects the DNS server of the visited domain based on the third information.
  • the third information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • a diversion method including:
  • the SMF of the visited domain receives the fourth information from the PCF of the visited domain or the SMF of the home domain;
  • the ULCL in the visited domain of the terminal device is inserted or updated, and the DNS server in the visited domain of the terminal device is discovered.
  • the fourth information is sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify message.
  • the fourth information is sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • the fourth information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • a home domain SMF including:
  • Processor used to read the program in the memory and perform the following processes:
  • EAS information of the visited domain ECS address of the visited domain, related information of the visited domain AF, SMF local distribution information authorized to the visited domain, and distribution policy;
  • Transceiver used to receive and send data under the control of a processor.
  • the EAS information of the visited domain in the information is used to configure the visited domain EASDF in the SMF of the visited domain.
  • Implementation further includes:
  • Receive fifth information sent by the visited domain SMF where the fifth information includes one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for local offloading capability in the visited domain.
  • the EAS information of the visited domain received by the SMF in the visited domain is obtained by the SMF in the home domain from the NEF in the home domain.
  • the received information about the AF of the visited domain is obtained by the SMF of the home domain from the PCF of the home domain.
  • sixth information is obtained from the UDM of the home domain, and the sixth information indicates local offloading.
  • a home domain SMF including:
  • the SMF sending module of the home domain is used to send one or a combination of the following information to the SMF of the visited domain when a Home Routed PDU session is established or modified:
  • the EAS information of the visited domain The EAS information of the visited domain, the ECS address of the visited domain, the related information of the visited domain AF, the SMF local distribution information authorized to the visited domain, and the distribution policy.
  • the SMF sending module of the home domain is further configured to send the EAS information of the visited domain in the information of the SMF configuration of the visited domain EASDF.
  • Implementation further includes:
  • the SMF receiving module of the home domain is configured to receive the fifth information sent by the SMF of the visited domain.
  • the fifth information includes one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support.
  • Supports EASDF capability indicating that it supports local offloading capability in the visited domain.
  • the SMF sending module of the home domain is further configured to send the received EAS information of the visited domain obtained by the SMF of the home domain from the NEF of the home domain.
  • the SMF sending module of the home domain is further used to obtain the relevant information of the AF of the visited domain received by the SMF of the home domain from the PCF of the home domain.
  • the SMF receiving module of the home domain is further configured to obtain sixth information from the UDM of the home domain, where the sixth information indicates local offloading.
  • a SMF for visiting domains including:
  • Processor used to read the program in the memory and perform the following processes:
  • Transceiver used to receive and send data under the control of a processor.
  • the NF of the home domain is SMF, or PCF, or UDM.
  • Implementation further includes:
  • local diversion is carried out, including:
  • Insert or update the ULCL according to the first information and select a local DNS server according to the first information.
  • the first information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • EAS information is sent to the visited domain EASDF.
  • EAS information is obtained from the SMF in the home domain, or from the NEF in the visited domain, or from other NFs in the visited domain.
  • a SMF for visiting domains including:
  • the SMF offload module of the visited domain is used to perform local offloading after receiving the first information sent by the NF of the home domain.
  • the NF of the home domain is SMF, or PCF, or UDM.
  • Implementation further includes:
  • the SMF sending module of the visited domain is used by the SMF of the visited domain to send the offloading policy to the UPF of the visited domain.
  • the SMF offload module of the visited domain is further used for local offloading, including:
  • Insert or update the ULCL according to the first information and select a local DNS server according to the first information.
  • the first information includes one of the following information or a combination thereof:
  • the SMF sending module of the visited domain is further used to send EAS information to the visited domain EASDF.
  • EAS information is obtained from the SMF in the home domain, or from the NEF in the visited domain, or from other NFs in the visited domain.
  • a UPF for visiting domains including:
  • Processor used to read the program in the memory and perform the following processes:
  • Transceiver used to receive and send data under the control of a processor.
  • the second information is sent to the SMF of the home domain, passing through the SMF of the visited location or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • Implementation further includes:
  • the second information is sent to the DNS server of the visited domain for processing.
  • Implementation further includes:
  • the feedback information is returned to the UE through the ULCL of the visited domain.
  • a UPF for visiting domains including:
  • the UPF sending module of the visited domain is configured to receive the second information initiated by the UE and send the second information to the SMF of the home domain.
  • the UPF sending module of the visited domain is further configured to send the second information to the SMF of the home domain, passing through the SMF of the visited domain or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • the UPF sending module of the visited domain is further used to send the second information to the DNS server of the visited domain for processing.
  • the UPF sending module of the visited domain is further used to return the feedback information to the UE through the ULCL of the visited domain after receiving the DNS feedback.
  • a SMF for visiting domains including:
  • Processor used to read the program in the memory and perform the following processes:
  • Transceiver used to receive and send data under the control of a processor.
  • the search for the visited domain PCF is performed in the context of the Home Routed PDU session.
  • Implementation further includes:
  • the third information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • a SMF for visiting domains including:
  • the SMF selection module of the visited domain is used to find the PCF in the visited domain, and perform SM Policy Association with the PCF or trigger SM Policy Association Modification.
  • the SMF selection module of the visited domain is further used to find the visited domain PCF in the case of Home Routed PDU session.
  • the SMF receiving module of the visited domain is used to receive the third information sent by the PCF of the visited domain for ULCL insertion or update in the visited domain.
  • the SMF selection module of the visited domain is further used to insert or update the ULCL based on the third information, and select the DNS server of the visited domain based on the third information.
  • the third information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • a SMF for visiting domains including:
  • Processor used to read the program in the memory and perform the following processes:
  • the ULCL in the visited domain of the terminal device is inserted or updated, and the DNS server in the visited domain of the terminal device is discovered;
  • Transceiver used to receive and send data under the control of a processor.
  • the fourth information is sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify message.
  • the fourth information is sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • the fourth information includes one of the following information or a combination thereof:
  • a SMF for visiting domains including:
  • the SMF receiving module of the visited domain is used to receive the fourth information from the PCF of the visited domain or the SMF of the home domain in the case of Home Routed PDU session;
  • the SMF processing module of the visited domain is used to insert or update the ULCL in the visited domain of the terminal device according to the fourth information, and discover the DNS server in the visited domain of the terminal device.
  • the SMF receiving module of the visited domain is further configured to receive the fourth information sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify message.
  • the SMF receiving module of the visited domain is further configured to receive the fourth information of the SMF sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • DNAI application information
  • EAS information application service identification information
  • a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above method is implemented.
  • the current technology does not describe how to use edge computing capabilities in HR roaming scenarios.
  • the technical solution provided by the embodiment of the present disclosure solves how to use edge computing capabilities in Home Routed roaming scenarios, including Edge Application Server (EAS). ) or the discovery of the Edge Application Server deployment environment (Edge Host Environment, EHE).
  • EHE contains or is equal to the EAS instance.
  • the UE accesses the EAS, it can be considered that the UE has accessed or accessed the EHE, and how to access the EHE within the VPLMN.
  • Performing local routing of traffic fills the research gap in related technologies.
  • Figure 1 is a schematic diagram of the 5G network architecture in the context of Home Routed roaming in the background technology
  • Figure 2 is a schematic diagram of the interfaces between network functions in the context of HR roaming in the background technology
  • Figure 3 is a schematic flowchart of the implementation of the information sending method on the HSMF side in an embodiment of the present disclosure
  • Figure 4 is a schematic flow chart of the implementation of the shunt method on the VSMF side in an embodiment of the present disclosure
  • Figure 5 is a schematic flow chart of the implementation of the service request processing method on the VUPF side in the embodiment of the present disclosure
  • Figure 6 is a schematic flowchart of the implementation flow of the PCF selection method on the VSMF side in an embodiment of the present disclosure
  • Figure 7 is a schematic flow chart of the implementation of the shunt method on the VSMF side in the embodiment of the present disclosure
  • Figure 8 is a schematic diagram of the implementation architecture of Embodiment 1 in the embodiment of the present disclosure.
  • Figure 9 is a schematic flowchart of the diversion implementation process in Embodiment 1 of the present disclosure.
  • Figure 10 is a schematic diagram of the implementation architecture of Embodiment 2 in the embodiment of the present disclosure.
  • Figure 11 is a schematic diagram of the flow implementation process of Embodiment 2 of the present disclosure.
  • Figure 12 is a schematic diagram of the implementation architecture of Embodiment 3 in the embodiment of the present disclosure.
  • Figure 13 is a schematic diagram of the three-division implementation process in the embodiment of the present disclosure.
  • Figure 14 is a schematic diagram of the flow implementation process of Example 4 in the embodiment of the present disclosure.
  • Figure 15 is a schematic structural diagram of the SMF of the home domain in the embodiment of the present disclosure.
  • Figure 16 is a schematic structural diagram of the SMF of the visited domain in an embodiment of the present disclosure.
  • Figure 17 is a schematic diagram of the UPF structure of the visited domain in an embodiment of the present disclosure.
  • Figure 18 is a schematic structural diagram of the SMF of the visited domain in an embodiment of the present disclosure.
  • Figure 19 is a schematic structural diagram of the SMF of the visited domain in an embodiment of the present disclosure.
  • edge computing focuses more on accessing local services and is not combined with roaming scenarios.
  • 3GPP 3rd Generation Partnership Project
  • roaming In this scenario, how the UE uses edge computing capabilities to discover edge application servers and use local offload capabilities to access local services in the visited location becomes a problem that needs to be solved.
  • edge computing capabilities are mostly used in roaming scenarios in LBO roaming scenarios.
  • DNN Data Network Names
  • edge application servers Edge Application servers
  • EAS edge application servers
  • EHE Edge Host Environment
  • EHE contains or is equal to the EAS instance.
  • the UE accesses the EAS, it can be equally considered that the UE has accessed or accessed EHE, and how to route traffic locally within the VPLMN.
  • H in the name represents the home location, for example, HSMF is the home location SMF, V represents the visiting location, such as VPCF is the visiting location PCF, and the others are similar.
  • HSMF is the home location SMF
  • V represents the visiting location, such as VPCF is the visiting location PCF, and the others are similar.
  • VPLMN is the visited domain of the terminal device
  • HPLMN is the home domain of the terminal device
  • VAF is the AF of the visited domain.
  • CP control plane, control surface
  • UE user entity, user entity;
  • NEF network exposure function, capability exposure function
  • NRF network repository function, network registration function, execution of network function (Network Function, NF) service management;
  • AF application function, application function. It can be a third-party application or the operator's self-operated business. If it is a third-party application, AF needs to interact with PCF or UDM through NEF;
  • PDU session Protocol data unit session
  • SMF session management function, session management function
  • AMF access and mobility management function, access and mobility management function
  • UPF user plane function, user plane function
  • UDM unified data management, unified data management functions.
  • Figure 3 is a schematic diagram of the implementation process of the information sending method on the HSMF side. As shown in the figure, it includes:
  • Step 301 When the home routing PDU session is established or modified, the SMF of the home domain sends one or a combination of the following information to the SMF of the visited domain of the terminal device:
  • EAS information of the visited domain EAS information of the visited domain
  • ECS Edge Configuration Server
  • related information of the visited domain AF SMF local offloading information authorized to the visited domain
  • offloading policy EAS information of the visited domain
  • EAS information refers to EAS deployment information and/or other EAS related information.
  • EAS information can be EAS deployment information (EAS deployment information), and/or other EAS-related information, which is related information describing the edge application server and can be used for the discovery of edge application servers and can be used for the edge application server discovery function (Edge Application Server Discovery) Function, EASDF) configuration, SMF can obtain relevant information of the Data Network Service (Data Network Service, DNS) server from this information;
  • EAS deployment information EAS deployment information
  • EAS-related information which is related information describing the edge application server and can be used for the discovery of edge application servers and can be used for the edge application server discovery function (Edge Application Server Discovery) Function, EASDF) configuration
  • SMF can obtain relevant information of the Data Network Service (Data Network Service, DNS) server from this information;
  • DNS Data Network Service
  • AF related information can include external application identifiers, application service identifiers, data network access identifiers (DN Access Identifier, DNAI), related routing configuration file identifiers, N6 traffic routing information, EAS deployment information, etc.
  • external application identifiers application service identifiers
  • data network access identifiers DN Access Identifier, DNAI
  • routing configuration file identifiers N6 traffic routing information
  • EAS deployment information etc.
  • the information is sent through first information, and the first information is used for PDU session request establishment or update.
  • the information may be sent through a PDU session establishment request (Nsmf_PDUSession_Create Request) or a PDU session update request (Nsmf_PDUSession_Update Request).
  • Nsmf_PDUSession_Create Request a PDU session establishment request
  • Nsmf_PDUSession_Update Request a PDU session update request
  • the EAS information of the visited domain of the terminal device in the information is used for the SMF of the visited domain.
  • EAS information can be used by VSMF to configure the visited domain EASDF.
  • Implementation further includes:
  • the home domain SMF receives the fifth information sent by the visited domain SMF.
  • the fifth information includes one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for local offloading capability in the visited domain.
  • the fifth information may be or contain at least one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for the local offloading capability in the visited domain.
  • the fifth information when the fifth information only contains the authorization to request local offloading in the visited domain, then the fifth information is the authorization to request local offloading in the visited domain;
  • the fifth information only contains an indication of supporting the EASDF capability, then the fifth information is an indication of supporting the EASDF capability;
  • the fifth information is an indication that the local offloading capability in the visited domain is supported.
  • the EAS information of the visited domain of the terminal device received by the SMF of the visited domain is obtained by the SMF of the home domain from the NEF of the home domain.
  • the SMF of the visited domain receives the relevant information of the AF of the visited domain, and the SMF of the home domain obtains it from the PCF of the home domain.
  • the home domain AF sends AF related information to the home domain NEF through the AF request.
  • the AF related information can affect the traffic routing of the session and can include external application identification, application service identification, DNAI, related routing configuration file identification, and N6 traffic routing. information, EAS deployment information, etc.
  • the home domain NEF stores the AF request information in the home domain unified data repository (UDR).
  • the home domain PCF subscribes to the changes in the AF request and receives notifications from the home domain UDR.
  • the notification contains the AF request information.
  • the home domain AF directly sends the AF request to the home domain PCF.
  • the PCF generates a corresponding policy based on the AF request and sends the policy information to the home domain SMF.
  • the policy information contains AF-related information.
  • the SMF of the home domain obtains sixth information from the UDM of the home domain, and the sixth information may indicate local offloading.
  • Figure 4 is a schematic diagram of the implementation process of the shunt method on the VSMF side, as shown in the figure, including:
  • Step 401 After receiving the first information sent by the NF in the home domain, the SMF in the visited domain performs local offloading.
  • the NF of the home domain may be SMF, PCF, or UDM.
  • it may further include:
  • the SMF of the visited domain sends the offloading policy to the UPF of the visited domain through the N4session (N4 session) message, and instructs the UPF of the visited domain to identify the service flow.
  • local diversion is carried out, including:
  • the SMF of the visited domain inserts or updates the ULCL based on the first information, and selects a local DNS server based on the first information.
  • the SMF of the visited domain sends EAS information to the visited domain EASDF.
  • EAS information is obtained from the SMF in the home domain, or from the NEF in the visited domain, or from other NFs in the visited domain.
  • FIG. 5 is a schematic diagram of the implementation process of the service request processing method on the VUPF side. As shown in the figure, it includes:
  • Step 501 The UPF of the visited domain receives the second information initiated by the UE, and sends the second information to the SMF of the home domain.
  • the transmission and reception in the implementation may be direct transmission and reception, or may be indirect transmission and reception, for example, through one or more network elements forwarding.
  • the second information is sent to the SMF of the home domain, passing through the SMF of the visited location or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • it may further include:
  • the UPF of the visited domain sends the second information to the DNS server of the visited domain for processing.
  • it may further include:
  • the UPF of the visited domain After receiving the DNS feedback, the UPF of the visited domain returns the feedback information to the UE through the ULCL of the visited domain.
  • Figure 6 is a schematic diagram of the implementation process of the PCF selection method on the VSMF side. As shown in the figure, it includes:
  • Step 601 The SMF of the visited domain searches for the PCF in the visited domain, and associates the session management policy with the PCF or triggers session management policy association modification.
  • the SMF of the visited domain searches for the visited domain PCF in the context of a Home Routed PDU session.
  • session management policy association is SM Policy Association
  • session management policy association modification is SM Policy Association Modification.
  • the SMF of the visited domain finds a PCF in the visited domain of the terminal device to perform subscription query or update, and performs SM Policy Association Establishment with the PCF or triggers SM Policy Association Modification. (Policy association modification).
  • it may further include:
  • the third information sent by the PCF of the visited domain is sent by the PCF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • it may further include:
  • the SMF of the visited domain performs ULCL insertion or update based on the third information, and selects the DNS server of the visited domain based on the third information.
  • the third information includes one or a combination of the following information:
  • DNAI application information
  • EAS information application service identification information
  • Figure 7 is a schematic diagram of the implementation process of the shunt method on the VSMF side, as shown in the figure, including:
  • Step 701 The SMF of the visited domain receives the fourth information from the PCF of the visited domain or the SMF of the home domain in the case of a home routing PDU session;
  • Step 702 Perform ULCL insertion in the visited domain of the terminal device according to the fourth information or Update, discovery of DNS servers within the visited domain of the terminal device.
  • the fourth information is sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify (data management notification) message.
  • the fourth information is sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify (session management policy control update notification) message.
  • Npcf and Nudr are two different interfaces. The specific meanings of the Npcf and Nudr interfaces can be found in the definitions in the 3Gpp standard protocol, which will not be described again in this application.
  • the fourth information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • the main problem solved by the solution is how to use edge computing capabilities in Home Routed roaming scenarios, including the discovery of edge application servers (Edge Application Server, EAS) or edge application server deployment environments (Edge Host Environment, EHE), and how to use them within VPLMN. Perform local routing of traffic.
  • EAS Edge Application Server
  • EHE Edge Host Environment
  • FIG. 8 is a schematic diagram of the implementation architecture of Embodiment 1.
  • HPLMN knows the deployment information of the EAS of the relevant VPLMN.
  • the HPLMN application function Application Function, AF
  • AF Application Function
  • AF-HNEF home NEF; NEF: Network Exposure Function
  • VEASDF Visit EASDF; EASDF: Edge Application Server Discovery Function
  • ULCL and PSA perform local offloading within the VPLMN.
  • FIG. 9 is a schematic diagram of the offload implementation process of Embodiment 1. As shown in the figure, the offload implementation under this architecture may include:
  • the EDI information of VPLMN is passed from VAF (AF of VPLMN) to HAF (HPLMN AF) or configured on the HAF according to the operator agreement;
  • HAF brings the received VPLMN EDI information to HNEF through Nnef_EAS Deployment_Create/Update request (Nnef interface_EAS deployment_create/update request);
  • HNEF processes and checks whether HAF is authorized to request and other related operations
  • HNEF stores VPLMN EDI information in HUDR (home UDR; UDR: Unified Data Repository), through Nudr_DM_Create/Update request (Nudr_DM_Create/Update request; DM: Unified Data Management Entity, Unified Data Management);
  • HNEF replies to HAF Nnef_EAS Deployment_Create/Update response (Nnef interface_EAS Deployment_Create/Update response);
  • HNEF finds that the EDI information has been updated, and sends the updated VPLMN EDI information to HSMF that has previously subscribed to the service through Nnef_EAS Deployment_Notify (Nnef interface_EAS deployment_notification);
  • HSMF sends the EDI information of the VPLMN and the policy-related subscription information obtained from the HPCF (Home PCF), including the offloading capability of the VSMF and the service resolution capability of the VUPF, to the VSMF;
  • HPCF Home PCF
  • VSMF configures EASDF based on the received EDI information
  • EAS discovery process After the UE initiates a service request, SMF discovers EAS based on the DNS reply returned by EASDF and dynamically inserts ULCL and Local PDU Session Anchor (LPSA) for local offloading.
  • LPSA Local PDU Session Anchor
  • FIG. 10 is a schematic diagram of the implementation architecture of Embodiment 2. As shown in the figure, under this architecture, for some special application services, when HPLMN knows the EAS deployment of VPLMN, the AF of HPLMN The EDI information of VPLMN is passed to VSMF through the AF-HNEF-HSMF-VSMF path. VSMF configures EASDF according to the EDI information. If the relevant information of AF is modified after the session is established, VAF will update the DN Access Identifier.
  • DNAI) information, EAS information and other AF-related information are sent to HAF, and the AF influence (AF influence) process is used through the VAF-HAF-HPCF (Home PCF; PCF: Policy Control Function)-HSMF-VSMF path Brought to VSMF, VSMF finds the corresponding local DNS server (local DNS server), ULCL and LPSA based on the DNAI information and/or EAS information in the AF request, and performs local offloading within the VPLMN.
  • VAF-HAF-HPCF Home PCF; PCF: Policy Control Function
  • FIG 11 is a schematic diagram of the offload implementation process in Embodiment 2. As shown in the figure, the offload implementation under this architecture may include:
  • VAF sends DNAI information, EAS information and other AF-related information to HAF;
  • HAF delivers the information requested by AF (including DNAI information and/or EAS information, AF service identification, etc.) to HSMF through the AF influencing routing process;
  • HSMF sends the above information to VSMF; if during this process, VSMF receives the above information sent by HSMF and the EDI information of VPLMN at the same time, VSMF will perform subsequent ULCL UPF selection and DNS query. When, the most recently received information is given priority to determine the ULCL UPF and the corresponding local DNS server;
  • VSMF selects and inserts ULCL UPF based on DNAI information, and finds the corresponding local DNS server;
  • UE initiates DNS query through ULCL and PSA;
  • VUPF forwards the DNS message to the local DNS server for processing and receives the query results
  • VUPF returns the query results to the UE through VUPF (ULCL), which is subsequently used for EAS discovery.
  • FIG 12 is a schematic diagram of the implementation architecture of Embodiment 3. As shown in the figure, under this architecture, when HPLMN When the EAS information of the VPLMN is not known, when the UE requests a service, the VUPF sends the request to the HSMF through HUPF or VSMF and instructs the service server to be local. The HSMF authorizes the VSMF to perform local offloading. The VSMF goes to the VNEF to request the latest EDI information, and according to the EDI Information configures VEASDF, and VSMF dynamically inserts ULCL and PSA based on the DNS query results returned by VEASDF to perform local offloading within the VPLMN.
  • FIG. 13 is a schematic diagram of the three-fold implementation process of the embodiment. As shown in the figure, the triage implementation under this architecture may include:
  • VAF sends the EDI information to VNEF through the EAS information configuration process and stores it in VUDR.
  • steps 1-6 of Embodiment 1 please refer to steps 1-6 of Embodiment 1;
  • the UE initiates a request service to the VUPF
  • VUPF forwards the request to HUPF and indicates that the service requested by the UE is within the VPLMN;
  • VUPF forwards the request to VSMF, indicating that the service requested by the UE is within the VPLMN, and local offloading within the VPLMN is required;
  • VSMF forwards the request to HSMF
  • HSMF authorizes VSMF to perform local offloading
  • VSMF goes to VNEF to query the EDI information of VPMN and obtains the latest EDI from NEF;
  • VSMF selects EASDF and configures VEASDF according to the latest EDI
  • the EAS discovery process searches for EAS based on the information returned by VEASDF.
  • HPLMN does not know the EAS information of VPLMN.
  • a new interface is added between VPCF and VSMF.
  • VUPF sends the request to HSMF through HUPF or VSMF and instructs the service server to be local.
  • HSMF authorizes VSMF to perform local offloading.
  • VSMF performs local offloading according to VAF.
  • the DNAI information issued by the AF influence process is inserted into the ULCL and PSA and finds the local DNS server for local distribution within the VPLMN.
  • FIG 14 is a schematic diagram of the offload implementation process in Embodiment 4. As shown in the figure, the offload implementation under this architecture Implementations may include:
  • Steps 0-4 are the same as steps 0-4 of Example 3;
  • Steps 5-9 are the AF influencing routing process.
  • the purpose is to send VAF-related information to VSMF.
  • the steps are the same as step 2 of the second embodiment.
  • the details can be as follows:
  • VAF creates an AF request to VNEF, which carries VAF’s DNAI information and/or EAS information;
  • VNEF stores and updates information (DNAI information and/or EAS information, etc.) to VUDR;
  • VNEF responds to the VAF request
  • VUDR initiates a Nudr_DM_Notify (Npcf_data management notification, also known as data management function modification) message to VPCF and sends the DNAI information to VPCF;
  • VPCF sends DNAI to VSMF through the Npcf_SM Policy Control_UpdateNotify (Npcf_SM policy control update notification; SM: Session Management; Session Management) message; during the HR session establishment process, VSMF selects a PCF in the VPLMN as the SM PCF;
  • VSMF performs ULCL selection and insertion based on DNAI information and/or EAS information, and performs EAS discovery based on the local DNS server.
  • embodiments of the present disclosure also provide an SMF in the home domain, a UPF in the visited domain, an SMF in the visited domain, and a computer-readable storage medium. Due to the problem-solving principles and information sending and offloading methods of these devices, are similar, so the implementation of these devices can be referred to the implementation of the method, and repeated details will not be repeated.
  • FIG. 15 is a schematic diagram of the SMF structure of the home domain. As shown in the figure, the SMF includes:
  • the processor 1500 is used to read the program in the memory 1520 and perform the following processes:
  • the EAS information of the visited domain the ECS (Edge Configuration Server) address of the visited domain, the related information of the visited domain AF, the SMF local distribution information authorized to the visited domain, and the distribution policy;
  • Transceiver 1510 for receiving and transmitting data under the control of processor 1500.
  • the EAS information of the visited domain in the information is used to configure the visited domain EASDF in the SMF of the visited domain.
  • Implementation further includes:
  • Receive fifth information sent by the visited domain SMF where the fifth information includes one of the following contents or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for local offloading capability in the visited domain.
  • the EAS information of the visited domain received by the SMF in the visited domain is obtained by the SMF in the home domain from the NEF in the home domain.
  • the received information about the AF of the visited domain is obtained by the SMF of the home domain from the PCF of the home domain.
  • sixth information is obtained from the UDM of the home domain, and the sixth information indicates local offloading.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1500 and various circuits of the memory represented by memory 1520 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1510 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1500 when performing operations.
  • the embodiment of the present disclosure also provides a home domain SMF, including:
  • the SMF sending module of the home domain is used to send one or a combination of the following information to the SMF of the visited domain when a Home Routed PDU session is established or modified:
  • the EAS information of the visited domain The EAS information of the visited domain, the ECS (Edge Configuration Server) address of the visited domain, the related information of the visited domain AF, the SMF local distribution information authorized to the visited domain, and the distribution policy.
  • the SMF sending module of the home domain is further configured to send the EAS information of the visited domain in the information of the SMF configuration of the visited domain EASDF.
  • Implementation further includes:
  • the SMF receiving module of the home domain is configured to receive the fifth information sent by the SMF of the visited domain.
  • the fifth information includes one of the following or a combination thereof: authorization for local offloading in the visited domain, indicating support for the EASDF capability, indicating support for the visiting domain Domain local offload capability.
  • the SMF sending module of the home domain is further configured to send the received EAS information of the visited domain obtained by the SMF of the home domain from the NEF of the home domain.
  • the SMF sending module of the home domain is further used to obtain the relevant information of the AF of the visited domain received by the SMF of the home domain from the PCF of the home domain.
  • the SMF receiving module of the home domain is further configured to obtain sixth information from the UDM of the home domain, where the sixth information indicates local offloading.
  • each part of the above-described device is divided into various modules or units by function and described separately.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • FIG 16 is a schematic diagram of the SMF structure of the visited domain. As shown in the figure, the SMF includes:
  • the processor 1600 is used to read the program in the memory 1620 and perform the following processes:
  • Transceiver 1610 for receiving and transmitting data under the control of processor 1600.
  • the NF of the home domain is SMF, or PCF, or UDM.
  • Implementation further includes:
  • local diversion is carried out, including:
  • Insert or update the ULCL according to the first information and select a local DNS server according to the first information.
  • the first information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • EAS information is sent to the visited domain EASDF.
  • EAS information is obtained from the SMF in the home domain, or from the NEF in the visited domain, or from other NFs in the visited domain.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1600 and various circuits of the memory represented by memory 1620 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1610 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 can store data used by the processor 1600 when performing operations.
  • the embodiment of this disclosure also provides an SMF for a visited domain, including:
  • the SMF offload module of the visited domain is used to perform local offloading after receiving the first information sent by the NF of the home domain.
  • the NF of the home domain is SMF, or PCF, or UDM.
  • Implementation further includes:
  • the SMF sending module of the visited domain is used by the SMF of the visited domain to send the offloading policy to the UPF of the visited domain.
  • the SMF offload module of the visited domain is further used for local offloading, including:
  • Insert or update the ULCL according to the first information and select a local DNS server according to the first information.
  • the first information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • the SMF sending module of the visited domain is further used to send EAS information to the visited domain EASDF.
  • EAS information is obtained from the SMF in the home domain, or from the NEF in the visited domain, or from other NFs in the visited domain.
  • each part of the above-described device is divided into various modules or units by function and described separately.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • FIG 17 is a schematic diagram of the UPF structure of the visited domain. As shown in the figure, the UPF includes:
  • the processor 1700 is used to read the program in the memory 1720 and perform the following processes:
  • Transceiver 1710 for receiving and transmitting data under the control of processor 1700.
  • the second information is sent to the SMF of the home domain, passing through the SMF of the visited location or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • Implementation further includes:
  • the second information is sent to the DNS server of the visited domain for processing.
  • Implementation further includes:
  • the feedback information is returned to the UE through the ULCL of the visited domain.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1700 and various circuits of the memory represented by memory 1720 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1710 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 can store data used by the processor 1700 when performing operations.
  • the embodiment of this disclosure also provides a UPF for the visited domain, including:
  • the UPF sending module of the visited domain is used to receive the second information initiated by the UE and send the second information SMF sent to the home domain.
  • the UPF sending module of the visited domain is further configured to send the second information to the SMF of the home domain, passing through the SMF of the visited domain or the UPF of the home domain.
  • the second information is a DNS query message for discovery of the edge application server.
  • the UPF sending module of the visited domain is further used to send the second information to the DNS server of the visited domain for processing.
  • the UPF sending module of the visited domain is further used to return the feedback information to the UE through the ULCL of the visited domain after receiving the DNS feedback.
  • each part of the above-described device is divided into various modules or units by function and described separately.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • FIG. 18 is a schematic diagram of the SMF structure of the visited domain. As shown in the figure, the SMF includes:
  • the processor 1800 is used to read the program in the memory 1820 and perform the following processes:
  • Transceiver 1810 for receiving and transmitting data under the control of processor 1800.
  • the search for the visited domain PCF is performed in the context of the Home Routed PDU session.
  • Implementation further includes:
  • Implementation further includes:
  • the third information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1800 and various types of memories represented by memory 1820. Circuits are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1810 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1820 can store data used by the processor 1800 when performing operations.
  • the embodiment of this disclosure also provides an SMF for a visited domain, including:
  • the SMF selection module of the visited domain is used to search for the PCF in the visited domain, and perform SM Policy Association with the PCF or trigger SM Policy Association Modification.
  • the SMF selection module of the visited domain is further used to find the visited domain PCF in the case of Home Routed PDU session.
  • Implementation further includes:
  • the SMF receiving module of the visited domain is used to receive the third information sent by the PCF of the visited domain for ULCL insertion or update in the visited domain.
  • the SMF selection module of the visited domain is further used to insert or update the ULCL based on the third information, and select the DNS server of the visited domain based on the third information.
  • the third information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • each part of the above-described device is divided into various modules or units by function and described separately.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • FIG 19 is a schematic diagram of the SMF structure of the visited domain. As shown in the figure, the SMF includes:
  • the processor 1900 is used to read the program in the memory 1920 and perform the following processes:
  • the ULCL in the visited domain of the terminal device is inserted or updated, and the terminal device Discovery of DNS servers in the accessed domain;
  • Transceiver 1910 for receiving and transmitting data under the control of processor 1900.
  • the fourth information is sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify message.
  • the fourth information is sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • the fourth information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1900 and various circuits of the memory represented by memory 1920 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1910 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 1900 is responsible for managing the bus architecture and general processing, and the memory 1920 can store data used by the processor 1900 when performing operations.
  • the embodiment of this disclosure also provides an SMF for a visited domain, including:
  • the SMF receiving module of the visited domain is used to receive the fourth information from the PCF of the visited domain or the SMF of the home domain in the case of Home Routed PDU session;
  • the SMF processing module of the visited domain is used to insert or update the ULCL in the visited domain of the terminal device according to the fourth information, and discover the DNS server in the visited domain of the terminal device.
  • the SMF receiving module of the visited domain is further configured to receive the fourth information sent by the UDR of the visited domain to the PCF of the visited domain through the Nudr_DM_Notify message.
  • the SMF receiving module of the visited domain is further configured to receive the fourth information of the SMF sent by the PCF of the visited domain to the SMF of the visited domain through the Npcf_SMPolicyControl_UpdateNotify message.
  • the fourth information includes one of the following information or a combination thereof:
  • DNAI application information
  • EAS information application service identification information
  • each part of the above-described device is divided into various modules or units by function and described separately.
  • the functions of each module or unit can be implemented in the same or multiple software or hardware.
  • Embodiments of the present disclosure also provide a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the above method is implemented.
  • HSMF sends at least one of the following information to VSMF through Nsmf_PDUSession_Create Request: VPLMN's EAS information, VAF's DNAI information, instructions authorizing VSMF to perform local offloading in VPLMN, VSMF's offloading capability, VUPF The ability to identify flows.
  • VUPF After receiving the service request initiated by the UE, VUPF recognizes that the service belongs to the VPLMN and forwards the request to HUPF or VSMF. After receiving the request, HUPF or VSMF forwards it to HSMF.
  • VSMF finds the PCF in the VPLMN for subscription query or update, and selects a PCF to perform SM Policy Association Establishment or SMF initiated SM Policy Association Modification.
  • the PCF is selected as the VSM PCF of VSMF.
  • VPCF sends the DNAI information issued by VAF to VSMF.
  • VSMF receives DNAI information from VPCF or HPCF and performs ULCL selection and insertion within VPLMN based on this information.
  • embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.
  • a computer-usable storage media including, but not limited to, magnetic disk storage, optical storage, and the like
  • These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions
  • the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
  • Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

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Abstract

本申请公开了一种分流处理方法、设备及存储介质，包括：在Home Routed PDU会话建立或修改时，所述归属域的SMF将以下信息之一或者其组合发送给所述拜访域的SMF：拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。拜访域的SMF收到归属域的NF发送的第一信息后，进行本地分流。拜访域的UPF接收到UE发起的第二信息，将第二信息发送至归属域的SMF。拜访域的SMF查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification。

Description

一种分流处理方法、设备及存储介质
相关申请的交叉引用
本公开主张在2022年03月29日在中国提交的中国专利申请No.202210325973.7的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，特别涉及一种分流处理方法、设备及存储介质。
背景技术
图1为归属地路由(Home Routed，HR)漫游情况下第五代移动通信(5th-Generation，5G)网络架构示意图，图2为HR漫游情况下网络功能间的接口示意图，5G网络架构分为漫游和非漫游场景，漫游场景分为本地疏导(Local Breakout，LBO)漫游和HR漫游场景。HR漫游情况下5G网络架构如图1所示。
其拜访公共陆地移动网络(Visited Public Land Mobile Network，VPLMN)和归属地公共陆地移动网络(Home Public Land Mobile Network，HPLMN)的网络功能间的接口如图2所示。
边缘计算是5G网络的重要关键技术之一，边缘计算可以由上行链路分类器(Uplink Classifier，ULCL)支持，从而实现本地分流的能力。在没有边缘计算之前，用户设备(User Equipment，UE)访问应用时，数据流需要通过用户面功能(User Plane Function，UPF)进入数据网络(Data Network，DN)中。如果在部署边缘计算节点，可以将应用部署在本地的边缘计算平台上，通过ULCL分流功能将用户访问该应用的数据流分流到本地，减少核心网的负担。
5G核心网网络中，UPF作为用户面功能，可以作为ULCL上行链路分类 器由会话管理功能实体(Session Management Function，SMF)插入协议数据单元(Protocol Data Unit，PDU)会话中进行数据分流作用。当插入ULCL后，ULCL连接两个或多个不同的UPF作为PDU会话锚点(PDU Session Anchor，PSA)，每个PSA可以连接到不同的数据网络。
相关技术的不足在于，在Home Routed漫游场景下，目前没有方案能够支持使用边缘计算能力。
发明内容
本公开提供了一种分流处理方法、设备及存储介质，用以解决在Home Routed漫游场景下，没有方案能够支持使用边缘计算能力的问题。
本公开提供以下技术方案：
一种信息发送方法，包括：
在Home Routed PDU会话建立或修改时，所述归属域的SMF将以下信息之一或者其组合发送给所述拜访域的SMF：
拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
实施中，所述信息中拜访域的EAS信息用于拜访域的SMF配置拜访域EASDF。
实施中，进一步包括：
归属域SMF接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
实施中，拜访域的SMF收到的拜访域的EAS信息，是由归属域的SMF从归属域的NEF获取的。
实施中，拜访域的SMF收到的拜访域的AF的相关信息，是由归属域的SMF从归属域的PCF获取的。
实施中，归属域的SMF从归属域的UDM获取第六信息，所述第六信息指示进行本地分流。
一种分流方法，包括：
拜访域的SMF收到归属域的NF发送的第一信息后，进行本地分流。
实施中，归属域的NF为SMF，或PCF，或UDM。
实施中，进一步包括：
拜访域的SMF将分流策略发送给拜访域的UPF。
实施中，进行本地分流，包括：
拜访域的SMF根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，所述第一信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
实施中，拜访域的SMF将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
一种业务请求处理方法，包括：
拜访域的UPF接收到UE发起的第二信息，将第二信息发送至归属域的SMF。
实施中，所述将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，进一步包括：
拜访域的UPF将第二信息发送给拜访域的DNS服务器进行处理。
实施中，进一步包括：
拜访域的UPF在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
一种PCF选择方法，包括：
拜访域的SMF查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification。
实施中，拜访域的SMF查找拜访域PCF，是在Home Routed PDU会话情况下查找的。
实施中，进一步包括：
接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
实施中，进一步包括：
拜访域的SMF根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS server。
实施中，所述第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种分流方法，包括：
拜访域的SMF在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新，终端设备的拜访域内的DNS server的发现。
实施中，第四信息是拜访域的UDR通过Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
实施中，第四信息是拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种归属域的SMF，包括：
处理器，用于读取存储器中的程序，执行下列过程：
在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发 送给所述拜访域的SMF：
拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略；
收发机，用于在处理器的控制下接收和发送数据。
实施中，所述信息中拜访域的EAS信息用于拜访域的SMF配置拜访域EASDF。
实施中，进一步包括：
接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
实施中，拜访域的SMF收到的拜访域的EAS信息，是由归属域的SMF从归属域的NEF获取的。
实施中，收到的拜访域的AF的相关信息，是由归属域的SMF从归属域的PCF获取的。
实施中，从归属域的UDM获取第六信息，所述第六信息指示进行本地分流。
一种归属域的SMF，包括：
归属域的SMF发送模块，用于在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发送给所述拜访域的SMF：
拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
实施中，归属域的SMF发送模块进一步用于发送用于拜访域的SMF配置拜访域EASDF的所述信息中拜访域的EAS信息。
实施中，进一步包括：
归属域的SMF接收模块，用于接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支 持EASDF能力，指示支持在拜访域本地分流能力。
实施中，归属域的SMF发送模块进一步用于发送由归属域的SMF从归属域的NEF获取的收到的拜访域的EAS信息。
实施中，归属域的SMF发送模块进一步用于由归属域的SMF从归属域的PCF获取的收到的拜访域的AF的相关信息。
实施中，归属域的SMF接收模块进一步用于从归属域的UDM获取第六信息，所述第六信息指示进行本地分流。
一种拜访域的SMF，包括：
处理器，用于读取存储器中的程序，执行下列过程：
收到归属域的NF发送的第一信息后，进行本地分流；
收发机，用于在处理器的控制下接收和发送数据。
实施中，归属域的NF为SMF，或PCF，或UDM。
实施中，进一步包括：
将分流策略发送给拜访域的UPF。
实施中，进行本地分流，包括：
根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，所述第一信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
实施中，将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
一种拜访域的SMF，包括：
拜访域的SMF分流模块，用于收到归属域的NF发送的第一信息后，进行本地分流。
实施中，归属域的NF为SMF，或PCF，或UDM。
实施中，进一步包括：
拜访域的SMF发送模块，用于拜访域的SMF将分流策略发送给拜访域的UPF。
实施中，拜访域的SMF分流模块进一步用于在进行本地分流时，包括：
根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，所述第一信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
实施中，拜访域的SMF发送模块进一步用于将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
一种拜访域的UPF，包括：
处理器，用于读取存储器中的程序，执行下列过程：
接收到UE发起的第二信息，将第二信息发送至归属域的SMF；
收发机，用于在处理器的控制下接收和发送数据。
实施中，所述将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，进一步包括：
将第二信息发送给拜访域的DNS服务器进行处理。
实施中，进一步包括：
在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
一种拜访域的UPF，包括：
拜访域的UPF发送模块，用于接收到UE发起的第二信息，将第二信息发送至归属域的SMF。
实施中，拜访域的UPF发送模块进一步用于将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，拜访域的UPF发送模块进一步用于将第二信息发送给拜访域的DNS服务器进行处理。
实施中，拜访域的UPF发送模块进一步用于在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
一种拜访域的SMF，包括：
处理器，用于读取存储器中的程序，执行下列过程：
查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification；
收发机，用于在处理器的控制下接收和发送数据。
实施中，查找拜访域PCF，是在Home Routed PDU会话情况下查找的。
实施中，进一步包括：
接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
实施中，进一步包括：
根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS server。
实施中，所述第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种拜访域的SMF，包括：
拜访域的SMF选择模块，用于查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification。
实施中，拜访域的SMF选择模块进一步用于在Home Routed PDU会话情况下查找拜访域PCF。
实施中，进一步包括：
拜访域的SMF接收模块，用于接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
实施中，拜访域的SMF选择模块进一步用于根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS server。
实施中，所述第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种拜访域的SMF，包括：
处理器，用于读取存储器中的程序，执行下列过程：
在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设备的拜访域内的DNS server的发现；
收发机，用于在处理器的控制下接收和发送数据。
实施中，第四信息是拜访域的UDR通过Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
实施中，第四信息是拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种拜访域的SMF，包括：
拜访域的SMF接收模块，用于在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
拜访域的SMF处理模块，用于根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设备的拜访域内的DNS server的发现。
实施中，拜访域的SMF接收模块进一步用于接收拜访域的UDR通过Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
实施中，拜访域的SMF接收模块进一步用于接收拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的第四信息。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现上述方法。
本公开有益效果如下：
当前技术中没有描述如何在HR漫游场景下使用边缘计算功能，本公开实施例提供的技术方案中，解决了如何在Home Routed漫游场景下使用边缘计算能力，包括边缘应用服务器(Edge Application Server，EAS)或者边缘应用服务器部署环境(Edge Host Environment，EHE)的发现，此处，EHE包含或者等于EAS实例，当UE接入EAS时，可以同等认为UE已经接入或者访问EHE，以及如何在VPLMN内进行流量的本地路由，填补了相关技术中的研究空白。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本公开的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1为背景技术中Home Routed漫游情况下5G网络架构示意图；
图2为背景技术中HR漫游情况下网络功能间的接口示意图；
图3为本公开实施例中HSMF侧的信息发送方法实施流程示意图；
图4为本公开实施例中VSMF侧的分流方法实施流程示意图；
图5为本公开实施例中VUPF侧的业务请求处理方法实施流程示意图；
图6为本公开实施例中VSMF侧的PCF选择方法实施流程示意图；
图7为本公开实施例中VSMF侧的分流方法实施流程示意图；
图8为本公开实施例中实施例一的实施架构示意图；
图9为本公开实施例中实施例一分流实施流程示意图；
图10为本公开实施例中实施例二的实施架构示意图；
图11为本公开实施例中实施例二分流实施流程示意图；
图12为本公开实施例中实施例三的实施架构示意图；
图13为本公开实施例中实施例三分流实施流程示意图；
图14为本公开实施例中实施例四分流实施流程示意图；
图15为本公开实施例中本公开实施例中归属域的SMF结构示意图；
图16为本公开实施例中拜访域的SMF结构示意图；
图17为本公开实施例中拜访域的UPF结构示意图；
图18为本公开实施例中拜访域的SMF结构示意图；
图19为本公开实施例中拜访域的SMF结构示意图。
具体实施方式
发明人在发明过程中注意到：
在第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)5G网络架构标准研究中，由于边缘计算更多的是注重访问本地业务，没有和漫游场景相结合，然而随着网络的发展，在漫游场景下，UE如何使用边缘计算的能力，发现边缘应用服务器并使用本地分流能力访问拜访地的本地业务成为需要解决的问题。
当前在漫游场景下使用边缘计算能力更多的是在LBO的漫游场景。然而由于终端对数据网络名(Data Network Name，DNN)数量的支持有限，以及实际部署网络的需求，如何在HR漫游场景下使用边缘计算功能成为亟需解决的问题。
基于此，本公开实施例提供的技术方案，解决的问题就是如何在Home Routed漫游场景下使用边缘计算能力，包括边缘应用服务器(Edge Application  Server，EAS)或者边缘应用服务器部署环境(Edge Host Environment，EHE)的发现，实施例提供的方案中，EHE包含或者等于EAS实例，当UE接入EAS时，可以同等认为UE已经接入或者访问EHE，以及如何在VPLMN内进行流量的本地路由。
下面结合附图对本公开的具体实施方式进行说明。
在说明过程中，将分别从归属地SMF(Home SMF，HSMF)、拜访地SMF(Visited SMF，VSMF)、拜访地UPF(Visited UPF，VUPF)、与拜访地PCF(Visited PCF，VPCF；PCF：策略控制功能实体，Policy Control Function)侧的实施进行说明，然后还将给出它们配合实施的实例以更好地理解本公开实施例中给出的方案的实施。这样的说明方式并不意味着它们必须配合实施、或者必须单独实施，实际上，当它们分开实施时，其也各自解决自身一侧的问题，而它们结合使用时，会获得更好的技术效果。
为便于说明区别，名称中的H代表归属地，如HSMF为归属地SMF，V代表拜访地，如VPCF为拜访地PCF，其他类似。又例如：
VPLMN为所述终端设备的拜访域，HPLMN为所述终端设备的归属域，VAF为拜访域的AF。
实施例中将会涉及的功能实体主要如下：
CP:control plane，控制面；
UP：user plane，用户面；
UE：user entity，用户实体；
NEF：network exposure function，能力开放功能；
NRF：network repository function，网络注册功能，执行网络功能(Network Function，NF)服务的管理；
AF：application function，应用功能。可以是第三方的应用，也可以是运营商的自营业务。如果是第三方应用，AF需要通过NEF与PCF或UDM交互；
PDU session：Protocol data unit会话；
SMF：session management function，会话管理功能；
AMF：access and mobility management function，接入及移动性管理功能；
UPF：user plane function，用户面功能；
UDM：unified data management，统一数据管理功能。
图3为HSMF侧的信息发送方法实施流程示意图，如图所示，包括：
步骤301、在归属地路由PDU会话建立或修改时，所述归属域的SMF将以下信息之一或者其组合发送给所述终端设备拜访域的SMF：
拜访域的EAS信息、拜访域的边缘配置服务(Edge Configuration Server，ECS)地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
其中，EAS信息指EAS部署信息和/或其他EAS相关信息。
EAS信息可以是EAS部署信息(EAS deployment information)，和/或其他EAS相关信息，是描述边缘应用服务器的相关信息，可用于边缘应用服务器的发现，可用于边缘应用服务器发现功能(Edge Application Server Discovery Function，EASDF)的配置，SMF可以从该信息获取数据网络业务(Data Network Service，DNS)服务器的相关信息；
AF的相关信息可以包括外部应用标识、应用服务标识、数据网络接入标识(DN Access Identifier，DNAI)、相关路由配置文件标识、N6流量路由信息、EAS部署信息等。
实施中，所述信息是通过第一信息发送的，第一信息是用于PDU会话请求建立或更新的。
具体的，所述信息可以是通过PDU会话建立请求(Nsmf_PDUSession_Create Request)或PDU会话更新请求(Nsmf_PDUSession_Update Request)发送的。
实施中，所述信息中终端设备的拜访域的EAS信息用于拜访域的SMF 配置拜访域EASDF。
具体的，EAS信息可以用于VSMF对拜访域EASDF进行配置。
实施中，进一步包括：
归属域SMF接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
第五信息可以是或包含以下内容至少之一或其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
例如，当第五信息只包含请求在拜访域本地分流的授权时，则第五信息为请求在拜访域本地分流的授权；
当第五信息只包含指示支持EASDF能力时，则第五信息是支持EASDF能力的指示；
当第五信息只包含指示支持在拜访域本地分流能力时，则第五信息是支持在拜访域本地分流能力的指示。
实施中，拜访域的SMF收到的终端设备的拜访域的EAS信息，是由归属域的SMF从归属域的NEF获取的。
实施中，拜访域的SMF收到的拜访域的AF的相关信息，是由归属域的SMF从归属域的PCF获取的。
具体的，归属域AF通过AF请求向归属域NEF发送AF相关信息，AF的相关信息可以影响会话的流量路由，可以包括外部应用标识、应用服务标识、DNAI、相关路由配置文件标识、N6流量路由信息、EAS部署信息等。归属域NEF将AF请求信息存储在归属域统一数据存储库(Unified Data Repository，UDR)中，归属域PCF订阅AF请求的变化，并从归属域UDR接收通知，通知中包含AF请求信息。或者归属域AF直接将AF请求发送给归属域PCF。PCF根据AF请求生成对应的策略，并将策略信息发送给归属域SMF，策略信息中包含AF的相关信息。
实施例中归属域的SMF从归属域的UDM获取第六信息，所述第六信息可指示进行本地分流。
图4为VSMF侧的分流方法实施流程示意图，如图所示，包括：
步骤401、拜访域的SMF收到归属域的NF发送的第一信息后，进行本地分流。
实施中，归属域的NF可以为SMF，或PCF，或UDM。
实施中，还可以进一步包括：
拜访域的SMF将分流策略通过N4session(N4会话)消息发送给拜访域的UPF，并指示拜访域的UPF识别业务流。
实施中，进行本地分流，包括：
拜访域的SMF根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，拜访域的SMF将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
图5为VUPF侧的业务请求处理方法实施流程示意图，如图所示，包括：
步骤501、拜访域的UPF接收到UE发起的第二信息，将第二信息发送至归属域的SMF。
实施中的发送与接收可以是直接的发送与接收，也可以是间接地，例如通过一个或多个网元转发来发送和接收。
实施中，所述将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，还可以进一步包括：
拜访域的UPF将第二信息发送给拜访域的DNS服务器进行处理。
实施中，还可以进一步包括：
拜访域的UPF在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
图6为VSMF侧的PCF选择方法实施流程示意图，如图所示，包括：
步骤601、拜访域的SMF查找拜访域内的PCF，并与该PCF进行会话管理策略关联或者触发会话管理策略关联修改。
实施中，拜访域的SMF查找拜访域PCF，是在Home Routed PDU会话情况下查找的。其中，会话管理策略关联即SM Policy Association，会话管理策略关联修改即SM Policy Association Modification。
具体的，拜访域的SMF在Home Routed PDU会话建立过程中，找到终端设备的拜访域内的一个PCF进行订阅查询或更新，与该PCF进行SM Policy Association Establishment(策略关联建立)或者触发SM Policy Association Modification(策略关联修改)。
实施中，还可以进一步包括：
接收拜访域的PCF发送的第三信息，用于终端设备的拜访域内的ULCL的插入或更新。
实施中，拜访域的PCF发送的第三信息，是拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送的。
实施中，还可以进一步包括：
拜访域的SMF根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS服务器(server)。
实施中，第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
图7为VSMF侧的分流方法实施流程示意图，如图所示，包括：
步骤701、拜访域的SMF在归属地路由PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
步骤702、根据所述第四信息进行终端设备的拜访域内的ULCL插入或 更新,终端设备的拜访域内的DNS服务器的发现。
实施中，第四信息是拜访域的UDR通过Nudr_DM_Notify(数据管理通知)消息发送给拜访域的PCF的第四信息。
实施中，第四信息是拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify(会话管理策略控制更新通知)消息发送给拜访域的SMF的。Npcf和Nudr为两种不同接口，Npcf和Nudr接口具体含义可参见3Gpp标准协议中的定义，本申请中不再赘述。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
方案主要解决的问题是如何在Home Routed漫游场景下使用边缘计算能力，包括边缘应用服务器(Edge Application Server，EAS)或者边缘应用服务器部署环境(Edge Host Environment，EHE)的发现，以及如何在VPLMN内进行流量的本地路由。下面通过实施例进行说明。
实施例一：
图8为实施例一的实施架构示意图，如图所示，在该架构下，针对某些应用服务，HPLMN知道相关的VPLMN的EAS的部署信息。HPLMN的应用功能(Application Function，AF)将VPLMN的EAS部署信息(EAS deployment information，EDI)通过AF-HNEF(归属地NEF；NEF：网络能力开放功能，Network Exposure Function)-HSMF-VSMF路径传递给VSMF，VSMF根据EDI信息配置VEASDF(拜访EASDF；EASDF：边缘应用服务器发现功能，Edge Application Server Discovery Function)，会话建立后，VSMF根据VEASDF返回的数据网络业务(Data Network Service，DNS)查询结果动态插入ULCL和PSA，进行VPLMN内的本地分流。
图9为实施例一分流实施流程示意图，如图所示，在该架构下的分流实施可以包括：
1、VPLMN的EDI信息由VAF(VPLMN的AF)传递给HAF(HPLMN 的AF)或根据运营商协议配置在HAF上；
2、HAF将接收到的VPLMN的EDI信息通过Nnef_EAS Deployment_Create/Update request(Nnef接口_EAS部署_创建/更新请求)带给HNEF；
3、HNEF进行处理，检查HAF是否被授权请求等相关操作；
4、HNEF将VPLMN EDI信息存储在HUDR(归属地UDR；UDR：统一数据存储库，Unified Data Repository)中，通过Nudr_DM_Create/Update request(Nudr_DM_创建/更新请求；DM：统一数据管理实体，Unified Data Management)；
5、HUDR回复HNEF Nudr_DM_Create/Update response(Nudr_DM_创建/更新响应)；
6、HNEF回复HAF Nnef_EAS Deployment_Create/Update response(Nnef接口_EAS部署_创建/更新响应)；
7、HNEF发现EDI信息有更新，向之前已经订阅该服务的HSMF通过Nnef_EAS Deployment_Notify(Nnef接口_EAS部署_通知)发送更新的VPLMN的EDI信息；
8、在Home Routed漫游PDU会话建立过程中，HSMF将VPLMN的EDI信息，以及从HPCF(归属地PCF)获取的策略相关签约信息包括VSMF的分流能力、VUPF进行业务解析能力发送给VSMF；
9、VSMF根据收到的EDI信息对EASDF进行配置；
EAS发现流程：在UE发起业务请求后，SMF根据EASDF返回的DNS回复来发现EAS并动态插入ULCL，本地PDU会话锚点(Local PDU Session Anchor，LPSA)，进行本地分流。
实施例二：
图10为实施例二的实施架构示意图，如图所示，在该架构下，针对某些特殊应用服务，HPLMN知道VPLMN的EAS部署的情况下，HPLMN的AF 将VPLMN的EDI信息通过AF-HNEF-HSMF-VSMF路径传递给VSMF，VSMF根据EDI信息配置EASDF，会话建立后若AF的相关信息发生修改，那么VAF将更新的数据网络接入标识(DN Access Identifier，DNAI)信息、EAS信息等AF相关信息发送给HAF，并采用AF影响(AF influence)流程通过VAF-HAF-HPCF(归属地PCF；PCF：策略控制功能，Policy Control Function)-HSMF-VSMF路径带给VSMF，VSMF根据AF请求中的DNAI信息和/或EAS信息等找到对应的本地DNS服务器(local DNS server)和ULCL和LPSA，并进行VPLMN内的本地分流。
图11为实施例二分流实施流程示意图，如图所示，在该架构下的分流实施可以包括：
1、VAF将DNAI信息、EAS信息等AF相关信息发送给HAF；
2、HAF通过AF影响路由流程将AF请求的信息(包括DNAI信息和/或EAS信息，AF服务标识等)下发给HSMF；
3、在Home Routed PDU会话建立过程中，HSMF将上述信息发送给VSMF；若在此过程中，VSMF同时收到HSMF发送上述信息和VPLMN的EDI信息，则VSMF在后续的ULCL UPF选择和DNS查询时，优先以最近收到的信息来确定ULCL UPF，以及对应的本地DNS服务器；
4、VSMF根据DNAI信息进行ULCL UPF的选择和插入，并找到对应的本地DNS服务器；
5、UE通过ULCL、PSA发起DNS查询；
6、VUPF(PSA)将DNS消息转发给本地DNS服务器进行处理，并收到查询结果；
7、VUPF(PSA)将查询结果通过VUPF(ULCL)返回给UE，后续用于EAS发现。
实施例三
图12为实施例三的实施架构示意图，如图所示，在该架构下，当HPLMN 不知道VPLMN的EAS信息时，UE请求业务时，VUPF通过HUPF或VSMF将请求发送给HSMF，并指示业务服务器在本地，HSMF授权VSMF进行本地分流，VSMF去VNEF请求最新的EDI信息，并根据EDI信息对VEASDF进行配置，VSMF根据VEASDF返回的DNS查询结果动态插入ULCL和PSA，进行VPLMN内的本地分流。
图13为实施例三分流实施流程示意图，如图所示，在该架构下的分流实施可以包括：
0、VAF通过EAS信息配置流程将EDI信息发送给VNEF并存储在VUDR中，其具体流程可参考实施例一的步骤1-6；
1、UE向VUPF发起请求业务；
2a、VUPF将请求转发给HUPF，并指示UE请求的业务在VPLMN内；
2b、VUPF将请求转发给VSMF，指示UE请求的业务在VPLMN内，需要进行VPLMN内的本地分流；
3a、在发生2a的情况下，HUPF将请求转发给HSMF；
3b、在发生2b的情况下，VSMF将请求转发给HSMF；
4、HSMF授权VSMF进行本地分流；
5、VSMF去VNEF查询VPMN的EDI信息，并从NEF获取最新EDI；
6、VSMF选择EASDF并根据最新的EDI配置VEASDF；
EAS发现流程，根据VEASDF返回的信息查找EAS。
实施例四
HPLMN不知道VPLMN的EAS信息，新增加VPCF与VSMF间的接口，UE请求业务时，VUPF通过HUPF或VSMF将请求发送给HSMF，并指示业务服务器在本地，HSMF授权VSMF进行本地分流，VSMF根据VAF的AF influence流程下发的DNAI信息插入ULCL和PSA并寻找local DNS server进行VPLMN内的本地分流。
图14为实施例四分流实施流程示意图，如图所示，在该架构下的分流实 施可以包括：
步骤0-4与实施例3的步骤0-4相同；
步骤5-9为AF影响路由流程，目的是VAF的相关信息发送给VSMF，其步骤与实施例二的第2步骤相同，具体可以如下：
5、VAF向VNEF创建AF请求，其中携带VAF的DNAI信息和/或EAS信息；
6、VNEF向VUDR存储、更新信息(DNAI信息和/或EAS信息等)；
7、VNEF回复VAF请求；
8、VUDR向VPCF发起Nudr_DM_Notify(Npcf_数据管理通知，也可称数据管理功能修改)消息，将DNAI信息发送给VPCF；
9、VPCF通过Npcf_SM Policy Control_UpdateNotify(Npcf_SM策略控制更新通知；SM：会话管理；Session Management)消息将DNAI发送给VSMF；在HR会话建立过程中VSMF在VPLMN中选择一个PCF作为SM PCF；
10、VSMF根据DNAI信息和/或EAS信息等进行ULCL选择和插入并根据local DNS server进行EAS的发现。
基于同一发明构思，本公开实施例中还提供了一种归属域的SMF、拜访域的UPF、拜访域的SMF、及计算机可读存储介质，由于这些设备解决问题的原理与信息发送、分流方法相似，因此这些设备的实施可以参见方法的实施，重复之处不再赘述。
在实施本公开实施例提供的技术方案时，可以按如下方式实施。
图15为归属域的SMF结构示意图，如图所示，SMF中包括：
处理器1500，用于读取存储器1520中的程序，执行下列过程：
在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发送给所述拜访域的SMF：
拜访域的EAS信息、拜访域的ECS(Edge Configuration Server)地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略；
收发机1510，用于在处理器1500的控制下接收和发送数据。
实施中，所述信息中拜访域的EAS信息用于拜访域的SMF配置拜访域EASDF。
实施中，进一步包括：
接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
实施中，拜访域的SMF收到的拜访域的EAS信息，是由归属域的SMF从归属域的NEF获取的。
实施中，收到的拜访域的AF的相关信息，是由归属域的SMF从归属域的PCF获取的。
实施中，从归属域的UDM获取第六信息，所述第六信息指示进行本地分流。
其中，在图15中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1500代表的一个或多个处理器和存储器1520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1510可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1500负责管理总线架构和通常的处理，存储器1520可以存储处理器1500在执行操作时所使用的数据。
本公开实施例中还提供了一种归属域的SMF，包括：
归属域的SMF发送模块，用于在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发送给所述拜访域的SMF：
拜访域的EAS信息、拜访域的ECS(Edge Configuration Server)地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
实施中，归属域的SMF发送模块进一步用于发送用于拜访域的SMF配置拜访域EASDF的所述信息中拜访域的EAS信息。
实施中，进一步包括：
归属域的SMF接收模块，用于接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
实施中，归属域的SMF发送模块进一步用于发送由归属域的SMF从归属域的NEF获取的收到的拜访域的EAS信息。
实施中，归属域的SMF发送模块进一步用于由归属域的SMF从归属域的PCF获取的收到的拜访域的AF的相关信息。
实施中，归属域的SMF接收模块进一步用于从归属域的UDM获取第六信息，所述第六信息指示进行本地分流。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
图16为拜访域的SMF结构示意图，如图所示，SMF中包括：
处理器1600，用于读取存储器1620中的程序，执行下列过程：
收到归属域的NF发送的第一信息后，进行本地分流；
收发机1610，用于在处理器1600的控制下接收和发送数据。
实施中，归属域的NF为SMF，或PCF，或UDM。
实施中，进一步包括：
将分流策略发送给拜访域的UPF。
实施中，进行本地分流，包括：
根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，所述第一信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
实施中，将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
其中，在图16中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1600代表的一个或多个处理器和存储器1620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1600负责管理总线架构和通常的处理，存储器1620可以存储处理器1600在执行操作时所使用的数据。
本公开实施例中还提供了一种拜访域的SMF，包括：
拜访域的SMF分流模块，用于收到归属域的NF发送的第一信息后，进行本地分流。
实施中，归属域的NF为SMF，或PCF，或UDM。
实施中，进一步包括：
拜访域的SMF发送模块，用于拜访域的SMF将分流策略发送给拜访域的UPF。
实施中，拜访域的SMF分流模块进一步用于在进行本地分流时，包括：
根据第一信息进行ULCL的插入或更新，根据第一信息选择本地DNS服务器。
实施中，所述第一信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
实施中，拜访域的SMF发送模块进一步用于将EAS信息发送给拜访域EASDF。
实施中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
图17为拜访域的UPF结构示意图，如图所示，UPF中包括：
处理器1700，用于读取存储器1720中的程序，执行下列过程：
接收到UE发起的第二信息，将第二信息发送至归属域的SMF；
收发机1710，用于在处理器1700的控制下接收和发送数据。
实施中，所述将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，进一步包括：
将第二信息发送给拜访域的DNS服务器进行处理。
实施中，进一步包括：
在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
其中，在图17中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1700代表的一个或多个处理器和存储器1720代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1710可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1700负责管理总线架构和通常的处理，存储器1720可以存储处理器1700在执行操作时所使用的数据。
本公开实施例中还提供了一种拜访域的UPF，包括：
拜访域的UPF发送模块，用于接收到UE发起的第二信息，将第二信息 发送至归属域的SMF。
实施中，拜访域的UPF发送模块进一步用于将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
实施中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
实施中，拜访域的UPF发送模块进一步用于将第二信息发送给拜访域的DNS服务器进行处理。
实施中，拜访域的UPF发送模块进一步用于在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
图18为拜访域的SMF结构示意图，如图所示，SMF中包括：
处理器1800，用于读取存储器1820中的程序，执行下列过程：
查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification；
收发机1810，用于在处理器1800的控制下接收和发送数据。
实施中，查找拜访域PCF，是在Home Routed PDU会话情况下查找的。
实施中，进一步包括：
接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
实施中，进一步包括：
根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS server。
实施中，所述第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
其中，在图18中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1800代表的一个或多个处理器和存储器1820代表的存储器的各种 电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1810可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1800负责管理总线架构和通常的处理，存储器1820可以存储处理器1800在执行操作时所使用的数据。
本公开实施例中还提供了一种拜访域的SMF，包括：
拜访域的SMF选择模块，用于查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification。
实施中，拜访域的SMF选择模块进一步用于在Home Routed PDU会话情况下查找拜访域PCF。
实施中，进一步包括：
拜访域的SMF接收模块，用于接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
实施中，拜访域的SMF选择模块进一步用于根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的DNS server。
实施中，所述第三信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
图19为拜访域的SMF结构示意图，如图所示，SMF中包括：
处理器1900，用于读取存储器1920中的程序，执行下列过程：
在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设 备的拜访域内的DNS server的发现；
收发机1910，用于在处理器1900的控制下接收和发送数据。
实施中，第四信息是拜访域的UDR通过Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
实施中，第四信息是拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
其中，在图19中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1900代表的一个或多个处理器和存储器1920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1900负责管理总线架构和通常的处理，存储器1920可以存储处理器1900在执行操作时所使用的数据。
本公开实施例中还提供了一种拜访域的SMF，包括：
拜访域的SMF接收模块，用于在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
拜访域的SMF处理模块，用于根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设备的拜访域内的DNS server的发现。
实施中，拜访域的SMF接收模块进一步用于接收拜访域的UDR通过Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
实施中，拜访域的SMF接收模块进一步用于接收拜访域的PCF通过Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的第四信息。
实施中，所述第四信息包括以下信息之一或者其组合：
DNAI、应用信息、EAS信息、应用服务标识信息。
为了描述的方便，以上所述装置的各部分以功能分为各种模块或单元分别描述。当然，在实施本公开时可以把各模块或单元的功能在同一个或多个软件或硬件中实现。
本公开实施例中还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现上述方法。
具体实施可以参见上述信息发送、分流方法的实施。
综上所述，本公开实施例提供的技术方案中：
在Home Routed PDU会话建立过程中，HSMF将以下至少一种信息通过Nsmf_PDUSession_Create Request发送给VSMF:VPLMN的EAS信息、VAF的DNAI信息、授权VSMF在VPLMN内进行本地分流的指示、VSMF的分流能力、VUPF识别流的能力。
VSMF根据HSMF的指示进行本地分流。
VUPF在接收到UE发起的业务请求后，识别出该业务属于VPLMN内，将该请求转发至HUPF或VSMF，HUPF或VSMF收到该请求后将其转发给HSMF。
在Home Routed PDU会话建立过程中，VSMF找到VPLMN内的PCF进行订阅查询或更新，并选择一个PCF，进行SM Policy Association Establishment或者SMF initiated SM Policy Association Modification，该PCF被选为VSMF的VSM PCF。
在Home Routed PDU会话情况下，VPCF将VAF下发的DNAI信息发送给VSMF。
在Home Routed PDU会话情况下，VSMF从VPCF或HPCF接收到DNAI信息，并根据该信息进行VPLMN内的ULCL选择和插入。
当前技术中没有描述如何在HR漫游场景下使用边缘计算功能，本方案需要解决了如何在Home Routed漫游场景下使用边缘计算能力，包括边缘应 用服务器EAS(Edge Application Server)或者边缘应用服务器部署环境EHE(Edge Host Environment)的发现，此处，EHE包含或者等于EAS实例，当UE接入EAS时，可以同等认为UE已经接入或者访问EHE，以及如何在VPLMN内进行流量的本地路由，填补了相关技术中的研究空白。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (38)

  1. 一种信息发送方法，包括：
    在归属地路由协议数据单元Home Routed PDU会话建立或修改时，归属域的会话管理功能SMF将以下信息之一或者其组合发送给拜访域的SMF：
    拜访域的边缘应用服务器EAS信息、拜访域的边缘配置服务器ECS地址、拜访域应用功能AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
  2. 如权利要求1所述的方法，其中，所述信息中拜访域的EAS信息用于拜访域的SMF配置拜访域边缘应用服务器发现功能EASDF。
  3. 如权利要求1所述的方法，进一步包括：
    归属域SMF接收拜访域SMF发送的第五信息，所述第五信息包括以下内容之一或者其组合：在拜访域本地分流的授权，指示支持EASDF能力，指示支持在拜访域本地分流能力。
  4. 如权利要求1所述的方法，其中，拜访域的SMF收到的拜访域的EAS信息，是由归属域的SMF从归属域的网络能力开放功能NEF获取的。
  5. 如权利要求1所述的方法，其中，拜访域的SMF收到的拜访域的AF的相关信息，是由归属域的SMF从归属域的策略控制功能PCF获取的。
  6. 如权利要求1所述的方法，进一步包括：
    归属域的SMF从归属域的统一数据管理功能UDM获取第六信息，所述第六信息指示进行本地分流。
  7. 一种分流方法，包括：
    拜访域的SMF收到归属域的网络功能NF发送的第一信息，进行本地分流。
  8. 如权利要求7所述的方法，其中，归属域的NF为SMF，或PCF，或UDM。
  9. 如权利要求7所述的方法，进一步包括：
    拜访域的SMF将分流策略发送给拜访域的用户面功能UPF。
  10. 如权利要求7所述的方法，其中，进行本地分流，包括：
    拜访域的SMF根据第一信息进行上行分类器ULCL的插入或更新，根据第一信息选择本地数据网络业务DNS服务器。
  11. 如权利要求7或10所述的方法，其中，所述第一信息包括以下信息之一或者其组合：
    数据网络接入标识DNAI、应用信息、EAS信息、应用服务标识信息。
  12. 如权利要求7所述的方法，其中，拜访域的SMF将EAS信息发送给拜访域EASDF。
  13. 如权利要求12所述的方法，其中，EAS信息是从归属域的SMF获取的，或者是从拜访域的NEF获取的，或者是从拜访域其他NF获取的。
  14. 一种业务请求处理方法，包括：
    拜访域的UPF接收到用户设备UE发起的第二信息，将第二信息发送至归属域的SMF。
  15. 如权利要求14所述的方法，其中，所述将第二信息发送至归属域的SMF，中间经过拜访地的SMF或归属地的UPF。
  16. 如权利要求14所述的方法，其中，第二信息是用于边缘应用服务器的发现的DNS查询消息。
  17. 如权利要求14所述的方法，进一步包括：
    拜访域的UPF将第二信息发送给拜访域的DNS服务器进行处理。
  18. 如权利要求17所述的方法，进一步包括：
    拜访域的UPF在接收到DNS反馈后，将反馈的信息通过拜访域的ULCL返回UE。
  19. 一种PCF选择方法，包括：
    拜访域的SMF查找拜访域内的PCF，并与该PCF进行会话管理策略关 联SM Policy Association或者触发会话管理策略关联修改SM Policy Association Modification。
  20. 如权利要求19所述的方法，其中，拜访域的SMF查找拜访域PCF，是在Home Routed PDU会话情况下查找的。
  21. 如权利要求19所述的方法，进一步包括：
    接收拜访域的PCF发送的第三信息，用于拜访域内的ULCL插入或更新。
  22. 如权利要求21所述的方法，进一步包括：
    拜访域的SMF根据第三信息进行ULCL插入或更新，根据第三信息选择拜访域的数据网络业务服务DNS server。
  23. 如权利要求21至22任一所述的方法，其中，所述第三信息包括以下信息之一或者其组合：
    DNAI、应用信息、EAS信息、应用服务标识信息。
  24. 一种分流方法，包括：
    拜访域的SMF在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
    根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设备的拜访域内的DNS server的发现。
  25. 如权利要求24所述的方法，其中，第四信息是拜访域的UDR通过数据管理通知Nudr_DM_Notify消息发送给拜访域的PCF的第四信息。
  26. 如权利要求24所述的方法，其中，第四信息是拜访域的PCF通过会话管理策略控制更新通知Npcf_SMPolicyControl_UpdateNotify消息发送给拜访域的SMF的。
  27. 如权利要求24至26任一所述的方法，其中，所述第四信息包括以下信息之一或者其组合：
    DNAI、应用信息、EAS信息、应用服务标识信息。
  28. 一种归属域的SMF，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发送给拜访域的SMF：
    拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略；
    收发机，用于在处理器的控制下接收和发送数据。
  29. 一种归属域的SMF，包括：
    归属域的SMF发送模块，用于在Home Routed PDU会话建立或修改时，将以下信息之一或者其组合发送给拜访域的SMF：
    拜访域的EAS信息、拜访域的ECS地址、拜访域AF的相关信息、授权拜访域的SMF本地分流的信息、分流策略。
  30. 一种拜访域的SMF，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    收到归属域的NF发送的第一信息后，进行本地分流；
    收发机，用于在处理器的控制下接收和发送数据。
  31. 一种拜访域的SMF，包括：
    拜访域的SMF分流模块，用于收到归属域的NF发送的第一信息后，进行本地分流。
  32. 一种拜访域的UPF，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    接收到UE发起的第二信息，将第二信息发送至归属域的SMF；
    收发机，用于在处理器的控制下接收和发送数据。
  33. 一种拜访域的UPF，包括：
    拜访域的UPF发送模块，用于接收到UE发起的第二信息，将第二信息发送至归属域的SMF。
  34. 一种拜访域的SMF，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification；
    收发机，用于在处理器的控制下接收和发送数据。
  35. 一种拜访域的SMF，包括：
    拜访域的SMF选择模块，用于查找拜访域内的PCF，并与该PCF进行SM Policy Association或者触发SM Policy Association Modification。
  36. 一种拜访域的SMF，包括：
    处理器，用于读取存储器中的程序，执行下列过程：
    在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
    根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新,终端设备的拜访域内的DNS server的发现；
    收发机，用于在处理器的控制下接收和发送数据。
  37. 一种拜访域的SMF，包括：
    拜访域的SMF接收模块，用于在Home Routed PDU会话情况下，从拜访域的PCF或归属域的SMF接收第四信息；
    拜访域的SMF处理模块，用于根据所述第四信息进行终端设备的拜访域内的ULCL插入或更新，终端设备的拜访域内的DNS server的发现。
  38. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至27任一所述方法。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108366380A (zh) * 2017-01-26 2018-08-03 中兴通讯股份有限公司 一种支持多归属协议数据单元会话的策略控制方法及装置
US20200260525A1 (en) * 2019-02-13 2020-08-13 Telefonaktiebolaget Lm Ericsson (Publ) Secondary Authorization at PDU Session Establishment at Home Routed Roaming
CN111586668A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 发送终端策略的方法、装置和系统
CN111586114A (zh) * 2020-04-24 2020-08-25 腾讯科技（深圳）有限公司 业务协同处理方法及相关设备
WO2021047448A1 (zh) * 2019-09-09 2021-03-18 中国移动通信有限公司研究院 会话管理方法及设备
CN114125808A (zh) * 2021-11-29 2022-03-01 中国联合网络通信集团有限公司 一种边缘应用服务器的发现方法及装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108366380A (zh) * 2017-01-26 2018-08-03 中兴通讯股份有限公司 一种支持多归属协议数据单元会话的策略控制方法及装置
US20200260525A1 (en) * 2019-02-13 2020-08-13 Telefonaktiebolaget Lm Ericsson (Publ) Secondary Authorization at PDU Session Establishment at Home Routed Roaming
CN111586668A (zh) * 2019-02-15 2020-08-25 华为技术有限公司 发送终端策略的方法、装置和系统
WO2021047448A1 (zh) * 2019-09-09 2021-03-18 中国移动通信有限公司研究院 会话管理方法及设备
CN111586114A (zh) * 2020-04-24 2020-08-25 腾讯科技（深圳）有限公司 业务协同处理方法及相关设备
CN114125808A (zh) * 2021-11-29 2022-03-01 中国联合网络通信集团有限公司 一种边缘应用服务器的发现方法及装置

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