WO2023213322A1 - 迁移边缘应用服务器的方法、装置、网元及存储介质 - Google Patents

迁移边缘应用服务器的方法、装置、网元及存储介质 Download PDF

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Publication number
WO2023213322A1
WO2023213322A1 PCT/CN2023/092488 CN2023092488W WO2023213322A1 WO 2023213322 A1 WO2023213322 A1 WO 2023213322A1 CN 2023092488 W CN2023092488 W CN 2023092488W WO 2023213322 A1 WO2023213322 A1 WO 2023213322A1
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Prior art keywords
plmn
information
indication information
smf
eas
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PCT/CN2023/092488
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English (en)
French (fr)
Inventor
陶源
段小嫣
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大唐移动通信设备有限公司
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Publication of WO2023213322A1 publication Critical patent/WO2023213322A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/165Performing reselection for specific purposes for reducing network power consumption

Definitions

  • the present disclosure relates to the field of wireless communication technology, and in particular, to a method, device, network element and storage medium for migrating an edge application server.
  • the mobile communication system can allow one operating platform (Operator Platforms, OP) to deploy edge applications on other OPs, and contract users can obtain the application services of other OPs through the home OP.
  • the OP can belong to the same Public Land Mobile Network (PLMN) or a different PLMN.
  • PLMN Public Land Mobile Network
  • Embodiments of the present disclosure provide a method, device, network element and storage medium for migrating edge application servers to solve the defect in the existing technology that service continuity cannot be guaranteed when EAS is migrated between different PLMNs, and realize the migration of source Migrating the EAS to the target EAS of the second PLMN can ensure service continuity.
  • embodiments of the present disclosure provide a method for migrating an edge application server, which is applied to The first SMF includes:
  • Receive first indication information the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • sending second indication information to the second SMF in the second PLMN includes:
  • the second indication information Based on the first indication information, determine the second indication information, where the second indication information is used to instruct migration of the source EAS to the target EAS;
  • the first UPF is: a UPF that supports UL CL/BP or a UPF that supports PSA.
  • configuring a first routing rule to the first UPF in the first PLMN includes:
  • the first UPF is a UPF that supports UL CL/BP
  • the first routing rule is configured to the UPF that supports PSA based on the confirmation information sent by the second SMF.
  • the method before configuring the first routing rule to the UPF that supports UL CL/BP based on the confirmation information sent by the second SMF , the method also includes:
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • receiving the first indication information includes:
  • the receiving the first indication information includes:
  • the method further includes:
  • the second SMF After receiving the SMF selection information sent by the first AMF, the second SMF is determined.
  • the method before sending the second indication information to the second SMF in the second PLMN, the method further includes:
  • the second PLMN When the second PLMN is a visiting PLMN, send a third request message to the UDM of the first PLMN, where the third request message is used to request confirmation whether the UE can be authorized to access the second PLMN;
  • embodiments of the present disclosure also provide a method for migrating an edge application server, which is applied to the second SMF, including:
  • the second UPF is determined by the second SMF based on the second indication information, and the second routing rule is used to route uplink data to the target EAS;
  • the second indication information includes one or more of the following information:
  • inter-PLMN relocation indication inter-PLMN relocation indication
  • Second information EAS IP replacement information or information about the target EAS.
  • the method further includes:
  • a second UPF is inserted or reselected.
  • the method after receiving the second indication information sent by the first SMF of the first PLMN, the method further includes:
  • the second indication information includes the second information, and the second information is the EAS IP replacement information, configure the EAS IP replacement information to the second UPF.
  • the method after receiving the second indication information sent by the first SMF of the first PLMN, the method further includes:
  • a third routing rule is configured to the second UPF of the second PLMN, where the third routing rule is used to route downlink data to the first UPF in the first PLMN.
  • the confirmation information includes tunnel information corresponding to the second UPF.
  • embodiments of the present disclosure also provide a method for migrating edge application servers, applied to AF, including:
  • first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • sending the first indication information includes:
  • sending the first indication information includes:
  • the second information is sent to the first SMF of the first PLMN.
  • sending the first indication information includes:
  • the second information is sent to the UE through the application layer.
  • embodiments of the present disclosure also provide a method for migrating edge application servers, applied to PCF, including:
  • Receive first indication information the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • receiving the first indication information includes:
  • the method before sending the PCC rule carrying the first indication information to the first SMF of the first PLMN, the method further includes :
  • the second PLMN is a visited PLMN, it is determined that the UE can be authorized to access the visited PLMN.
  • PLMN the second PLMN is the PLMN where the target EAS is located;
  • a PCC rule carrying the first indication information is generated.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • embodiments of the present disclosure further provide a first SMF, including a memory, a transceiver, and a processor, wherein:
  • a memory used to store computer programs; a transceiver, used to send and receive data under the control of the processor; a processor, used to read the computer program in the memory and implement the migration described in the first aspect as above Steps of the Edge Application Server approach.
  • embodiments of the present disclosure also provide a second SMF, including a memory, a transceiver, and a processor, wherein:
  • a memory used to store computer programs; a transceiver, used to send and receive data under the control of the processor; a processor, used to read the computer program in the memory and implement the migration described in the second aspect as above Steps of the Edge Application Server approach.
  • embodiments of the present disclosure further provide an AF, including a memory, a transceiver, and a processor, wherein:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and implement the migration described in the third aspect as above Steps of the Edge Application Server approach.
  • embodiments of the present disclosure further provide a PCF, including a memory, a transceiver, and a processor, wherein:
  • Memory used to store computer programs
  • transceiver used to send and receive data under the control of the processor
  • processor used to read the computer program in the memory and implement the migration described in the fourth aspect as above Steps of the Edge Application Server approach.
  • embodiments of the present disclosure also provide a device for migrating an edge application server, applied to the first SMF, including:
  • a first receiving unit configured to receive first indication information, the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • a first sending unit configured to send second indication information to the second SMF in the second PLMN, where the second indication information is determined based on the first indication information
  • the first configuration unit after receiving the confirmation information sent by the second SMF, configures a first routing rule to the first UPF in the first PLMN, where the first routing rule is used to route uplink data to the first UPF.
  • the second UPF in the second PLMN is configured to route uplink data to the first UPF.
  • embodiments of the present disclosure also provide a device for migrating an edge application server, applied to the second SMF, including:
  • the second receiving unit is configured to receive the second instruction information sent by the first SMF of the first PLMN, where the second instruction information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • a second configuration unit configured to configure a second routing rule to a second UPF of the second PLMN based on the second indication information, where the second UPF is determined by the second SMF based on the second indication information.
  • the second routing rule is used to route uplink data to the target EAS;
  • the second sending unit is used to send confirmation information to the first SMF.
  • embodiments of the present disclosure also provide a device for migrating edge application servers, which is applied to AF, including:
  • a second acquisition unit configured to acquire first indication information, where the first indication information is used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the third sending unit is used to send the first indication information.
  • embodiments of the present disclosure also provide a device for migrating edge application servers, which is applied to PCF and includes:
  • a third receiving unit configured to receive first indication information, the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • a fourth sending unit configured to send the PCC rule carrying the first indication information to the first SMF of the first PLMN based on the first indication information.
  • embodiments of the present disclosure also provide a processor-readable storage medium, wherein the processing
  • the computer-readable storage medium stores a computer program, the computer program is used to cause the processor to perform the steps of the method for migrating an edge application server as described in the first aspect as described above or to perform the method as described in the second aspect as described above.
  • the first SMF by receiving the first instruction information, the first SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF
  • the second indication information may be sent to the second SMF in the second PLMN, so that the second SMF can determine the second UPF based on the second indication information, and then may send the second indication information to the first PLMN after receiving the confirmation information sent by the second SMF.
  • the first UPF in the configuration configures the first routing rule, and then the data sent by the user equipment with the destination address being the source EAS address or the destination address being the destination EAS address can be forwarded to the second UPF, and the uplink data can be routed to the destination EAS through the second UPF , the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • Figure 1 is one of the flow diagrams of a method for migrating an edge application server provided by an embodiment of the present disclosure
  • Figure 2 is a second schematic flowchart of a method for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 3 is a third schematic flowchart of a method for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 4 is a schematic flowchart No. 4 of a method for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 5 is a schematic diagram of an application scenario of the method for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 6 is a schematic flow chart of the method for migrating an edge application server provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic flowchart No. 6 of a method for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 8 is a schematic flow chart of the method for migrating an edge application server provided by an embodiment of the present disclosure.
  • Figure 9 is a schematic flowchart eight of a method for migrating edge application servers provided by an embodiment of the present disclosure.
  • Figure 10 is a schematic structural diagram of the first SMF provided by an embodiment of the present disclosure.
  • Figure 11 is a schematic structural diagram of a second SMF provided by an embodiment of the present disclosure.
  • Figure 12 is a schematic structural diagram of an AF provided by an embodiment of the present disclosure.
  • Figure 13 is a schematic structural diagram of a PCF provided by an embodiment of the present disclosure.
  • Figure 14 is one of the structural schematic diagrams of a device for migrating edge application servers provided by an embodiment of the present disclosure
  • Figure 15 is a second structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure.
  • Figure 16 is a third structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure.
  • Figure 17 is the fourth structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure.
  • Mobile Edge Computing (MEC) technology migrates computing storage capabilities and business service capabilities to the edge of the network, eliminating the need to transmit data back to the cloud as much as possible, reducing the number of Data include latency and network costs to and from the cloud.
  • 5G 5th Generation Mobile Communication Technology
  • the 5G MEC nodes provide an MEC application platform to implement the deployment of third-party applications. and management capabilities. Users can obtain services through the MEC application.
  • 5G defines an application function (Application Function, AF), which can send an AF request (Request) to the network exposure function (NEF) of the non-trusted domain or to the policy control function (Policy Control Function, PCF) of the trusted domain , which includes a series of parameters such as target data network name (DNN), application ID, N6 routing requirements, application location, etc.
  • PCF can generate policy and charging control rules (Policy and Charging Control Rule-PCC Rule) for the target protocol data unit (Protocol Data Unit, PDU) session (Session) business flow based on the information parameters provided by AF and combined with its own policy control. PCC), and select an appropriate user plane function (User Plan Function, UPF) for it through the Session Management Function (SMF).
  • Application Function Application Function
  • UPF Session Management Function
  • MEC provides functions such as application infrastructure resource orchestration, application instantiation, and application rule configuration. Therefore, when MEC is deployed in a 5G system, MEC can also act as an Application Function, interacting with the 5G system control plane on behalf of the application deployed on the MEC.
  • 5G international roaming networking can include two solutions: the first solution is the roaming routing/local breakout solution; the second solution is the home-routed solution.
  • the network architecture combined with edge computing in the 5G system local break out (LBO) roaming scenario can include two network architectures: the first network architecture, through the uplink data classifier (UL CL)/branching point (Branching) Point, BP) network architecture for accessing the edge computing server; the second network architecture is the network architecture for accessing the edge computing server without the participation of UL CL/BP.
  • UL CL uplink data classifier
  • BP branching point
  • SMF can control the data path of the PDU session to ensure that the PDU session can correspond to multiple N6 interfaces (the interface between UPF and DN) at the same time, each supporting PDU
  • the anchor point of the session provides different access paths to the same DN to realize local offloading, which can be achieved through the Uplink Classifier (UL CL) function and the Internet Protocol Version 6 (Internet Protocol Version 6, IPv6) multi-homing function.
  • UL CL Uplink Classifier
  • IPv6 Internet Protocol Version 6
  • BP point Branching Point
  • the mobile communication system can allow one OP to deploy edge applications provided by application providers (Application Providers) on another OP (there is a federation agreement between different OPs). It also allows one OP to deploy edge applications on other OPs, and contract users can obtain application services of other OPs through the home OP.
  • OPs can belong to the same PLMN or different PLMNs.
  • EAS relocation In related technologies, only migration between EAS deployed by different EHEs in the same PLMN is considered for EAS relocation.
  • AF can send EAS relocation instructions or target (target) Data Network Access Identifier (DNAI) and other information to NEF/PCF to trigger the session through the traffic influence mechanism.
  • DNAI Data Network Access Identifier
  • the present disclosure provides a method, device, network element and storage medium for migrating an edge application server, sending second instruction information to the second SMF in the second PLMN through the first SMF and sending the second instruction information to the second SMF in the first PLMN through the first SMF.
  • the first UPF configures the first routing rule, which can migrate the source EAS to the target EAS of the second PLMN and ensure service continuity.
  • the term "and/or” describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations.
  • the character "/” generally indicates that the related objects are in an "or” relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar to it.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet Wireless service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS Universal mobile telecommunication system
  • WiMAX microwave access
  • 5G New Radio, NR 5G New Radio
  • EPS Evolved Packet System
  • 5GS 5G system
  • EPS Evolved Packet System
  • 5GS 5G system
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc.
  • the names of terminal equipment may also be different.
  • the terminal equipment may be called User Equipment (UE).
  • UE User Equipment
  • Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (also known as a "cellular phone").
  • Wireless terminal equipment can also be called a system, Subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, Access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), and user device (user device) are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name.
  • Network equipment can be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal equipment and the rest of the access network, which can include the Internet. Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices also coordinate attribute management of the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (long term evolution, LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), or home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure.
  • network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes.
  • the centralized unit and distributed unit may also be arranged geographically separately.
  • Figure 1 is one of the flow diagrams of a method for migrating an edge application server provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a method for migrating an edge application server.
  • the execution subject may be a method in the first PLMN.
  • the method includes:
  • Step 101 Receive first indication information, the first indication information being used to instruct migration of the source EAS in the first PLMN to the target EAS of the second PLMN;
  • the first SMF in the first PLMN may receive first indication information. Based on the received first indication information, the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN. The target EAS migration of the second PLMN.
  • the first SMF is a network element in the first PLMN.
  • the first SMF may receive the first indication information from one or more functional entities.
  • Step 102 Send second indication information to the second SMF in the second PLMN, where the second indication information is determined based on the first indication information;
  • the first SMF may send the second SMF to the second SMF in the second PLMN. 2. Instruction information.
  • the first SMF may select the second SMF in one or more ways, and after determining the second SMF, may send the second indication information to the second SMF.
  • Step 103 After receiving the confirmation information sent by the second SMF, configure a first routing rule to the first UPF in the first PLMN.
  • the first routing rule is used to route uplink data to the second PLMN. Second UPF in.
  • the second SMF after sending the second indication information to the second SMF, in order to configure routing rules for the first UPF in the first PLMN, it is possible to wait to receive confirmation information sent by the second SMF. After receiving the confirmation information, it is possible to determine The second SMF has determined the second UPF and configured routing rules to the second UPF. Then the first SMF can configure the first routing rules to the first UPF.
  • the first routing rules can be used to route uplink data to the second PLMN.
  • the second UPF, the routing rules corresponding to the second UPF can be used to route uplink data to the target EAS, and migration of the source EAS to the target EAS of the second PLMN can be achieved.
  • the first SMF by receiving the first indication information, the first SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF can migrate to the third PLMN in the second PLMN.
  • the second SMF sends the second indication information, so that the second SMF can determine the second UPF based on the second indication information, and then can receive the confirmation sent by the second SMF.
  • the first routing rule After confirming the information, configure the first routing rule to the first UPF in the first PLMN, and then the data sent by the user equipment whose destination address is the source EAS address or whose destination address is the destination EAS address can be forwarded to the second UPF, through the second UPF uplink data can be routed to the target EAS, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • sending the second indication information to the second SMF in the second PLMN includes:
  • the second indication information Based on the first indication information, determine the second indication information, where the second indication information is used to instruct migration of the source EAS to the target EAS;
  • the first SMF may determine the second indication information based on the first indication information. , and then the second indication information can be sent to the second SMF in the second PLMN.
  • the second indication information can be the same as the first indication information, or the second indication information can also be different from the first indication information.
  • the second indication information can be Instructs to migrate the source EAS to the target EAS of the second PLMN.
  • the first SMF can determine the second indication information and send the second indication information to the second SMF, so that the second SMF can determine the second UPF based on the second indication information, and then can receive the confirmation information sent by the second SMF.
  • the first routing rule is configured to the first UPF in the first PLMN, and then the uplink data can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • the target EAS can ensure service continuity.
  • the first UPF is: a UPF that supports UL CL/BP or a UPF that supports PSA.
  • the second SMF after sending the second indication information to the second SMF, in order to configure routing rules for the first UPF in the first PLMN, it is possible to wait to receive confirmation information sent by the second SMF. After receiving the confirmation information, it is possible to determine The second SMF has determined the second UPF and configured routing rules to the second UPF, and then the first SMF can configure the first routing rules to the first UPF, where the first UPF can be a UPF that supports UL CL/BP.
  • the UPF can also be a PSA-enabled UPF.
  • the first SMF may configure the first routing rule to the first UPF in the first PLMN, Then, data sent by the user equipment whose destination address is the source EAS address or whose destination address is the target EAS address can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • the target EAS can ensure service continuity.
  • configuring the first routing rule to the first UPF in the first PLMN includes:
  • the first routing rule is configured to the first UPF; wherein the first UPF supports PSA or supports UL CL/BP.
  • configuring the first routing rule to the first UPF in the first PLMN includes:
  • the first UPF is a UPF that supports UL CL/BP
  • the first routing rule is configured to the UPF that supports PSA based on the confirmation information sent by the second SMF.
  • the second SMF after sending the second indication information to the second SMF, in order to configure routing rules for the first UPF in the first PLMN, it is possible to wait to receive confirmation information sent by the second SMF. After receiving the confirmation information, it is possible to determine The second SMF has determined the second UPF and configured routing rules to the second UPF. Then, when the first UPF is a UPF that supports UL CL/BP, the first SMF can configure the first SMF to the UPF that supports UL CL/BP. routing rules, or in the case where the first UPF is a UPF that supports PSA, the first SMF may configure the first routing rule to the UPF that supports PSA.
  • the first SMF can configure the first routing rule to the UPF that supports UL CL/BP, and then the data sent by the user equipment with the destination address being the source EAS address or the destination address being the destination EAS address can be forwarded to the second UPF, through the third
  • the uplink data of the second UPF can be routed to the target EAS, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • the method before configuring the first routing rule to the UPF supporting UL CL/BP based on the confirmation information sent by the second SMF, the method further includes:
  • the first UPF is a UPF that supports UL CL/BP
  • the first route is configured to the UPF that supports UL CL/BP.
  • the first SMF can insert or reselect a UPF that supports UL CL/BP, and then after receiving the confirmation information, it can determine that the second SMF has determined the second UPF and configured routing rules to the second UPF, and then the first SMF SMF can configure the first routing rule to UPF that supports UL CL/BP.
  • the first SMF can insert or reselect the UPF that supports UL CL/BP, and configure the first routing rule to the UPF that supports UL CL/BP, so that the destination address sent by the user equipment is the source EAS address or the destination address is the destination EAS
  • the data of the address can be forwarded to the second UPF, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the confirmation information sent by the second SMF includes tunnel information corresponding to the second UPF
  • configuring the first routing rule to the first UPF in the first PLMN includes:
  • the first routing rule is configured to the first UPF.
  • the second SMF After sending the second indication information to the second SMF, in order to configure routing rules for the first UPF in the first PLMN, it is possible to wait to receive confirmation information sent by the second SMF. After receiving the confirmation information, it is possible to determine The second SMF has determined the second UPF and configured routing rules to the second UPF;
  • the first SMF can configure the first routing rule to the first UPF based on the tunnel information corresponding to the second UPF.
  • the rules can be used to route uplink data to the second UPF in the second PLMN.
  • the routing rules corresponding to the second UPF can be used to route the uplink data to the target EAS, which can realize migration of the source EAS to the target EAS of the second PLMN.
  • the first SMF can configure the first routing rule to the first UPF in the first PLMN based on the tunnel information corresponding to the second UPF, and then the target address sent by the user equipment is Data whose source EAS address or destination address is the target EAS address can be forwarded to the second UPF.
  • the uplink data through the second UPF can be routed to the target EAS.
  • the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity. sex.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the first SMF in the first PLMN may receive first indication information, and the first indication information may include one or more types of information, based on the received first Based on the indication information, the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the first SMF may receive first indication information, which may include first information. Based on the received first indication information, the first SMF may determine that the source EAS needs to be transferred to the target EAS of the second PLMN. migrate.
  • the first SMF may receive first indication information, which may include second information. Based on the received first indication information, the first SMF may determine that the source EAS needs to be transferred to the target EAS of the second PLMN. migrate.
  • the first SMF may receive first indication information, which may include first information and second information. Based on the first information and the second information, the first SMF may determine that the source EAS needs to be forwarded to the second Target EAS migration of PLMN.
  • the first information may be an inter-PLMN migration indication, used to instruct the source EAS to migrate to the EAS of other PLMNs.
  • the first information may be the ID of the second PLMN, used to indicate migrating the source EAS to the EAS of the PLMN corresponding to the ID.
  • the second information may be EAS IP Replacement information
  • the EAS IP Replacement information may include the IP address, port number, etc. of the target EAS.
  • the second information may be information of the target EAS, and the information of the target EAS may include the IP address of the target EAS.
  • the second SMF may determine the second indication information based on the first indication information. For example, in the case where the first indication information includes the first information, it may be determined that the second indication information includes: an inter-PLMN relocation indication. For example, in the case where the first indication information includes the second information, it may be determined that the second indication information includes: EAS IP replacement information or target EAS information.
  • the first indication information may include one or more types of information.
  • the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF may migrate to the second PLMN.
  • the second SMF in the PLMN sends the second indication information, so that the second SMF can determine the second UPF based on the second indication information, and then can, after receiving the confirmation information sent by the second SMF, send the second indication information to the first SMF in the first PLMN.
  • the UPF configures the first routing rule, and then the uplink data can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • receiving the first indication information includes:
  • the first SMF in the first PLMN may receive the PCC rule carrying the first indication information, and may obtain the first indication information based on the PCC rule. Based on the first indication Information, the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the first indication information received through the PCF may include one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF may send the second SMF to the second SMF in the second PLMN.
  • Two indication information so that the second SMF can determine the second UPF based on the second indication information, and then configure the first routing rule to the first UPF in the first PLMN after receiving the confirmation information sent by the second SMF, and then
  • the uplink data can be forwarded to the second UPF, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the receiving the first indication information includes:
  • the first SMF in the first PLMN may receive the second information sent by the AF of the first PLMN, and based on the first indication information, the first SMF may determine that the first SMF needs to migrate the source EAS to the target EAS of the second PLMN.
  • the source EAS migrates to the target EAS of the second PLMN.
  • the second information can be obtained through the AF of the first PLMN.
  • the first SMF can determine that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF can migrate to the second PLMN.
  • the second SMF sends the second indication information, so that the second SMF can determine the second UPF based on the second indication information, and then can configure the first UPF in the first PLMN after receiving the confirmation information sent by the second SMF.
  • the uplink data can be forwarded to the second UPF, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the method further includes:
  • the second SMF After receiving the SMF selection information sent by the first AMF, the second SMF is determined.
  • the first SMF may be based on the The second information and the EAS deployment information (EAS deployment information) of the second PLMN determine the target DNAI (target DNAI), and then the first request message carrying the target DNAI can be sent to the first AMF of the first PLMN, and then after receiving the first After the AMF sends the information to select the SMF, the second SMF can be determined, where the first AMF can be the Access and Mobility Management Function (AMF) of the first PLMN.
  • EAS deployment information EAS deployment information
  • the method of sending the first request message to the first AMF of the first PLMN may be by calling Nsmf_PDUSession_SMContextStatusNotify.
  • the first SMF can select the second SMF and send the second indication information to the second SMF, so that the second SMF can determine the second UPF based on the second indication information, and then can determine the second UPF after receiving the second indication information.
  • the first routing rule is configured to the first UPF in the first PLMN, and then the uplink data can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be realized. Migrating to the target EAS of the second PLMN can ensure service continuity.
  • the method before determining the target DNAI based on the second information and the EAS deployment information of the second PLMN, the method further includes:
  • the first SMF can obtain the EAS deployment information of the second PLMN based on its local configuration
  • the first SMF obtains the EAS deployment information of the second PLMN by subscribing to the NEF of the first PLMN.
  • the first SMF can select the second SMF and send the second indication information to the second SMF, so that the second SMF can determine the second UPF based on the second indication information, and then can after receiving the confirmation information sent by the second SMF. , configure the first routing rule to the first UPF in the first PLMN, and then the uplink data can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • Target EAS can ensure service continuity.
  • the method before sending the second indication information to the second SMF in the second PLMN, the method further includes:
  • the second SMF After receiving the query information sent by the first NRF, the second SMF is determined.
  • the first SMF may send a message to the first NRF of the first PLMN. Send a second request message to request the first NRF to query the SMF in the second PLMN, and then after receiving the query information sent by the first NRF, the second SMF can be determined.
  • the first SMF can select the second SMF and send the second indication information to the second SMF, so that the second SMF can determine the second UPF based on the second indication information, and then can after receiving the confirmation information sent by the second SMF. , configure the first routing rule to the first UPF in the first PLMN, and then the uplink data can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • Target EAS can ensure service continuity.
  • the second PLMN is a visited PLMN or a home PLMN.
  • the first SMF in the first PLMN may receive first indication information. Based on the received first indication information, the first SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • Target EAS migration of the second PLMN where, when the second PLMN is the visited PLMN, the first PLMN may be the home PLMN, and when the second PLMN is the home PLMN, the first PLMN may be the visited PLMN.
  • the first SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the second PLMN can be a visiting PLMN or a home PLMN, and the first SMF can send the second indication to the second SMF. information, so that the second SMF can determine the second UPF based on the second indication information, and then after receiving the confirmation information sent by the second SMF, configure the first routing rule to the first UPF in the first PLMN, and then uplink data It can be forwarded to the second UPF, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the method before sending the second indication information to the second SMF in the second PLMN, the method further includes:
  • the second PLMN When the second PLMN is a visiting PLMN, send a third request message to the UDM of the first PLMN, where the third request message is used to request confirmation whether the UE can be authorized to access the second PLMN;
  • a third indication information may be sent to the Unified Data Management (UDM) of the first PLMN.
  • UDM Unified Data Management
  • request message after receiving the confirmation information of the UDM reply of the first PLMN, it can be determined that the UE can be authorized to access the second PLMN, and then the second indication information can be sent to the second SMF in the second PLMN.
  • the second PLMN when the second PLMN is a visited PLMN, it can be determined whether the UE can be authorized to access the second PLMN. If it is determined that the UE can be authorized to access the second PLMN, the second indication information can be sent to the second SMF, so that the second SMF can be authorized to access the second PLMN.
  • the second SMF can determine the second UPF based on the second indication information, and then can configure the first routing rule to the first UPF after receiving the confirmation information sent by the second SMF, and then the uplink data sent by the user equipment can be forwarded to the second UPF.
  • UPF, the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • the second PLMN is any one of one or more third PLMNs
  • the third PLMN is not the same as the first PLMN
  • the third PLMN includes one or more alternatives. EAS.
  • the third PLMN may be a PLMN including one or more candidate EASs.
  • the third PLMN and the first PLMN may be different from the first PLMN.
  • the second PLMN may be any one of the one or more third PLMNs.
  • An indication information may be used to instruct migration of the source EAS to the target EAS of the second PLMN.
  • the first SMF may learn that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the first SMF by receiving the first indication information, the first SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF can migrate to the third PLMN in the second PLMN.
  • the second SMF sends the second indication information, so that the second SMF can determine the second UPF based on the second indication information, and then configure the first UPF in the first PLMN after receiving the confirmation information sent by the second SMF. Routing rules, and then the data sent by the user equipment with the destination address being the source EAS address or the destination address being the destination EAS address can be forwarded to the second UPF.
  • the upstream data can be routed to the destination EAS through the second UPF, and the source EAS can be migrated to The target EAS of the second PLMN can ensure service continuity.
  • FIG 2 is a second schematic flowchart of a method for migrating an edge application server provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a method for migrating an edge application server.
  • the execution subject may be a method in the second PLMN.
  • the method includes.
  • Step 201 Receive second instruction information sent by the first SMF of the first PLMN, where the second instruction information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the second SMF in the second PLMN may receive the second indication information sent by the first SMF of the first PLMN, and based on the received second indication information, the The second SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the second SMF is a network element in the second PLMN.
  • Step 202 Configure a second routing rule to the second UPF of the second PLMN based on the second indication information.
  • the second UPF is determined by the second SMF based on the second indication information.
  • the second routing rule is used to route uplink data to the target EAS;
  • the second SMF may configure the second routing rule to the second UPF of the second PLMN, and may enable the second UPF routes the received upstream data to the target EAS.
  • Step 203 Send confirmation information to the first SMF.
  • the second SMF may send confirmation information to the first SMF.
  • the first SMF can determine that the second SMF has determined the second UPF and configured routing rules to the second UPF, and then the first SMF can configure the first UPF to the first UPF. Routing rules.
  • the first routing rules can be used to route uplink data to the second UPF in the second PLMN.
  • the second UPF can route the uplink data to the target EAS, which can realize migration of the source EAS to the target EAS of the second PLMN. .
  • the second SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then The second SMF can configure the second routing rule to the second UPF, and then can send confirmation information to the first SMF, so that the first SMF configures the first routing rule, and then the destination address sent by the user equipment is the source EAS address or the destination address is
  • the data at the target EAS address can be forwarded to the second UPF, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the second indication information includes one or more of the following information:
  • inter-PLMN relocation indication inter-PLMN relocation indication
  • Second information EAS IP replacement information or information about the target EAS.
  • the second SMF in the second PLMN may receive second indication information sent by the first SMF of the first PLMN, and the second indication information may include one or Based on a variety of information, based on the received second indication information, the second SMF may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the second SMF may receive second indication information, which may include the first information. Based on the received second indication information, the second SMF may determine that the source EAS needs to be transferred to the target EAS of the second PLMN. migrate.
  • the second SMF may receive second indication information, and the second indication information may include second information. Based on the received second indication information, the second SMF may determine that the source EAS needs to be transferred to the target EAS of the second PLMN. migrate.
  • the second SMF may receive second indication information, which may include first information and second information. Based on the first information and the second information, the second SMF may determine that the source EAS needs to be transferred to the second Target EAS migration of PLMN.
  • the first information may be an inter-PLMN migration indication, used to instruct the source EAS to migrate to the EAS of other PLMNs.
  • the second information may be EAS IP Replacement information
  • the EAS IP Replacement information may include the IP address, port number, etc. of the target EAS.
  • the second information may be information of the target EAS, and the information of the target EAS may include the IP address of the target EAS.
  • the second indication information may include one or more types of information.
  • the second SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the second SMF can configure the second UPF.
  • the second routing rule can then send confirmation information to the first SMF, so that the first SMF configures the first routing rule, and then the uplink data sent by the user equipment can be forwarded to the second UPF, and the uplink data can be routed to the second UPF through the second UPF.
  • the target EAS can migrate the source EAS to the target EAS of the second PLMN, ensuring service continuity.
  • the second indication information includes the second information
  • the second routing rule before configuring the second routing rule to the second UPF of the second PLMN based on the second indication information, the The above methods also include:
  • a second UPF is inserted or reselected.
  • the second SMF may insert or reselect the second UPF based on the second information, and further may based on the second indication information, Configure the second routing rule to the second UPF of the second PLMN.
  • the second SMF can insert or reselect the second UPF, and then can configure the second routing rule to the second UPF, and then can send the confirmation information to the first SMF to
  • the first SMF is configured with the first routing rule, so that the uplink data sent by the user equipment can be forwarded to the second UPF.
  • the uplink data can be routed to the target EAS through the second UPF, and migration of the source EAS to the target EAS of the second PLMN can be achieved. , which can ensure service continuity.
  • the method further includes:
  • the second indication information includes the second information, and the second information is the EAS IP replacement information, configure the EAS IP replacement information to the second UPF.
  • the second SMF may configure the EAS IP to the second UPF based on the second information. Replacement information.
  • the method further includes:
  • a third routing rule is configured to the second UPF of the second PLMN, where the third routing rule is used to route downlink data to the first UPF in the first PLMN.
  • the second SMF may send a request to the second UPF of the second PLMN.
  • Configuring the third routing rule can enable the second UPF to route the downlink data sent by the target EAS to the first UPF, and then the downlink data can be forwarded to the user equipment through the first UPF.
  • the second SMF can configure the second routing rule and the third routing rule to the second UPF, and then the data sent by the user equipment whose destination address is the source EAS address or whose destination address is the destination EAS address can be forwarded to the second UPF, through
  • the uplink data of the second UPF can be routed to the target EAS, and the downlink data can be routed to the first UPF through the second UPF and forwarded to the user equipment.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • the confirmation information includes tunnel information corresponding to the second UPF.
  • the second SMF can send confirmation information to the first SMF, and carry the second UPF in the confirmation message.
  • the corresponding tunnel information enables the first SMF to configure the first routing rule to the first UPF based on the tunnel information corresponding to the second UPF.
  • the confirmation information can be sent to the first SMF, and the confirmation information includes the tunnel information corresponding to the second UPF, so that the first SMF configures the first routing rule, and then the uplink data sent by the user equipment can be forwarded to the second UPF through the third UPF.
  • the uplink data of the second UPF can be routed to the target EAS, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • the second SMF can learn that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the second SMF can configure the second UPF with the second instruction information. Routing rules, and then can send confirmation information to the first SMF, so that the first SMF configures the first routing rules, and then the data sent by the user equipment with the destination address being the source EAS address or the destination address being the destination EAS address can be forwarded to the second UPF, the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • FIG 3 is a third schematic flowchart of a method for migrating an edge application server provided by an embodiment of the present disclosure. As shown in Figure 3, an embodiment of the present disclosure provides a method for migrating an edge application server, and the execution subject may be the first PLMN. AF. The method includes:
  • Step 301 Obtain first indication information, which is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the AF of the first PLMN may obtain first indication information, and the first indication information may be used to instruct the migration of the source EAS to the target EAS of the second PLMN.
  • the functional entity that receives the first indication information determines that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the above-mentioned AF may be a network element in the first PLMN.
  • the AF can determine that the source EAS is unavailable and needs to be migrated to an EAS deployed in other PLMNs.
  • the AF can, based on the UE's contract, The federated OP protocol (for example, there is a federation agreement between different OPs), whether the candidate EAS is currently available (for example, information obtained through application layer interaction) and other information determine the target EAS, and then the first indication information can be obtained.
  • Step 302 Send the first instruction information.
  • the AF may send the first indication information.
  • the AF of the first PLMN may send the first indication information to the first SMF through one or more functional entities.
  • the first SMF can receive the first indication information, and then the first SMF can determine that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF can The SMF can perform routing configuration, so that the data sent by the user equipment with the destination address being the source EAS address or the destination address being the target EAS address can be forwarded to the second UPF in the second PLMN, and the uplink data can be routed to the target EAS through the second UPF. .
  • the method for migrating an edge application server provided by the embodiment of the present disclosure can obtain the first indication information through AF and send the first indication information, so that the first SMF can determine the need to migrate the source EAS to the third
  • the target EAS of the second PLMN migrates and performs routing configuration, so that the uplink data can be forwarded to the second UPF in the second PLMN.
  • the uplink data can be routed to the target EAS through the second UPF, thus migrating the source EAS to the second PLMN.
  • Target EAS can ensure service continuity.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the AF of the first PLMN may obtain first indication information.
  • the first indication information may include one or more types of information.
  • the first indication information may be used for Instructing the source EAS to migrate to the target EAS of the second PLMN may enable the functional entity that receives the first indication information to determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the AF of the first PLMN may obtain the first indication information, and the first indication information may include the first information.
  • the AF may send the first indication information.
  • the AF of the first PLMN may obtain the first indication information, and the first indication information may include second information.
  • the AF may send the first indication information.
  • the AF of the first PLMN may obtain first indication information, which may include first information and second information.
  • first indication information may include first information and second information.
  • the AF may send the first instruction information.
  • the first information may be an inter-PLMN migration indication, used to instruct the source EAS to migrate to the EAS of other PLMNs.
  • the first information may be the ID of the second PLMN, used to indicate migrating the source EAS to the EAS of the PLMN corresponding to the ID.
  • the second information may be EAS IP Replacement information
  • the EAS IP Replacement information may include the IP address, port number, etc. of the target EAS.
  • the second information may be the target EAS information
  • the target EAS information may include the IP address of the target EAS.
  • the first SMF can determine the need to migrate the source EAS to the target EAS of the second PLMN and perform routing configuration, and then uplink
  • the data can be forwarded to the second UPF in the second PLMN, and the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • sending the first indication information includes:
  • the AF may send the first NEF of the first PLMN or the PCF of the first PLMN. an instruction message.
  • the first SMF can determine the need to migrate the source EAS to the target EAS of the second PLMN and perform routing configuration, and then the uplink data can be Forwarded to the second UPF in the second PLMN, the uplink data can be routed to the target EAS through the second UPF, migrating the source EAS to the target EAS of the second PLMN can be achieved, and service continuity can be ensured.
  • sending the first indication information includes:
  • the second information is sent to the first SMF of the first PLMN.
  • the AF may send a request to the first SMF of the first PLMN. Send a second message.
  • the first SMF can determine the need to migrate the source EAS to the target EAS of the second PLMN and perform routing configuration, and then the uplink data can be forwarded to the second PLMN.
  • the uplink data can be routed to the target EAS, and the source EAS can be migrated to the target EAS of the second PLMN, ensuring service continuity.
  • sending the first indication information includes:
  • the second information is sent to the UE through the application layer.
  • the second information can be sent to the UE through the application layer, so that the UE can learn that the source EAS needs to be transferred to the target EAS of the second PLMN. migrate.
  • the second information sent to the UE may include: EAS IP replacement information or target EAS information.
  • the UE can learn that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the method for migrating an edge application server provided by the embodiment of the present disclosure can obtain the first indication information through the AF and send the first indication information, so that the first SMF can determine the need to migrate the source EAS to the target EAS of the second PLMN and perform routing configuration. , and then the uplink data can be forwarded to the second UPF in the second PLMN. The uplink data can be routed to the target EAS through the second UPF. The source EAS can be migrated to the target EAS of the second PLMN, and service continuity can be ensured.
  • FIG 4 is a schematic flowchart No. 4 of a method for migrating an edge application server provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a method for migrating an edge application server.
  • the execution subject may be the first PLMN. PCF.
  • the method includes:
  • Step 401 Receive first indication information, the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the PCF of the first PLMN may receive first indication information. Based on the received first indication information, the PCF of the first PLMN may determine that the source EAS needs to be migrated to the second PLMN. 2. Target EAS migration of PLMN.
  • PCF may be a network element in the first PLMN.
  • the PCF of the first PLMN may receive the first indication information through one or more functional entities.
  • Step 402 Based on the first indication information, send the PCC rule carrying the first indication information to the first SMF of the first PLMN.
  • the PCF of the first PLMN may carry the first indication information in the PCC rule. and sends the PCC rules to the first SMF.
  • the first SMF can receive the first indication information, and then the first SMF can determine that the source EAS needs to be migrated to the target EAS of the second PLMN, and then the first SMF can The SMF can perform routing configuration, so that the data sent by the user equipment with the destination address being the source EAS address or the destination address being the target EAS address can be forwarded to the second UPF in the second PLMN, and the uplink data can be routed to the target EAS through the second UPF. .
  • the method for migrating an edge application server receives the first indication information through the PCF of the first PLMN and carries the first indication information in the PCC rule and sends it to the first SMF, so that the first SMF can determine the need to migrate the source
  • the EAS migrates to the target EAS of the second PLMN and performs routing configuration, and then the uplink data can be forwarded to the second UPF in the second PLMN.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • the target EAS of the second PLMN can ensure service continuity.
  • receiving the first indication information includes:
  • the PCF of the first PLMN may receive the first indication information sent by the AF or receive the first indication information sent by the NEF. Based on the received first indication information, the The PCF of one PLMN may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the PCF can receive the first indication information sent by the AF or NEF, and then can carry the first indication information in the PCC rule and send it to the first SMF, so that the first SMF can determine that the source EAS needs to be transferred to the target EAS of the second PLMN.
  • Migrate and configure routing so that the uplink data can be forwarded to the second UPF in the second PLMN.
  • the uplink data can be routed to the target EAS through the second UPF.
  • the source EAS can be migrated to the target EAS of the second PLMN, which can ensure Service Continuity.
  • the first SMF sent to the first PLMN carries the first indicator.
  • the method further includes:
  • the second PLMN is a visited PLMN
  • a PCC rule carrying the first indication information is generated.
  • a PCC carrying the first indication information may be generated based on the first indication information. rule, and then the PCC rule can be sent to the first SMF.
  • the second PLMN is a visited PLMN
  • a PCC rule carrying the first indication information can be generated, and then the PCC rule can be sent to the first SMF, so that the third PLMN can be authorized to access the visited PLMN.
  • An SMF determines that it is necessary to migrate the source EAS to the target EAS of the second PLMN and perform routing configuration, and then the uplink data can be forwarded to the second UPF in the second PLMN, and the uplink data can be routed to the target EAS through the second UPF, which can be achieved Migrating the source EAS to the target EAS of the second PLMN can ensure service continuity.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the PCF of the first PLMN may receive first indication information, and the first indication information may include one or more types of information, based on the received first indication information. , the PCF of the first PLMN may determine that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the PCF of the first PLMN may receive first indication information, which may include first information. Based on the received first indication information, the PCF of the first PLMN may determine that the source EAS needs to be forwarded to the second Target EAS migration of PLMN.
  • the PCF of the first PLMN may receive first indication information, which may include second information. Based on the received first indication information, the PCF of the first PLMN may determine that the source EAS needs to be forwarded to the second Target EAS migration of PLMN.
  • the PCF of the first PLMN may receive first indication information, and the first indication information may include first information and second information. Based on the first information and the second information, the PCF of the first PLMN It may be determined that the source EAS needs to be migrated to the target EAS of the second PLMN.
  • the first information may be an inter-PLMN migration indication, used to instruct the source EAS to migrate to the EAS of other PLMNs.
  • the first information may be the ID of the second PLMN, used to indicate migrating the source EAS to the EAS of the PLMN corresponding to the ID.
  • the second information may be EAS IP Replacement information
  • the EAS IP Replacement information may include the IP address, port number, etc. of the target EAS.
  • the second information may be information of the target EAS, and the information of the target EAS may include the IP address of the target EAS.
  • the PCF of the first PLMN may receive the first indication information including one or more types of information and carry the first indication information in the PCC rule and send it to the first SMF, which may cause the first SMF to determine that the source EAS needs to be forwarded to the first SMF.
  • the target EAS of the second PLMN migrates and performs routing configuration, so that the uplink data can be forwarded to the second UPF in the second PLMN.
  • the uplink data can be routed to the target EAS through the second UPF, thus migrating the source EAS to the second PLMN.
  • Target EAS can ensure service continuity.
  • the method for migrating an edge application server receives the first indication information through the PCF of the first PLMN and carries the first indication information in the PCC rule and sends it to the first SMF, so that the first SMF can determine the need to migrate the source
  • the EAS migrates to the target EAS of the second PLMN and performs routing configuration, and then the uplink data can be forwarded to the second UPF in the second PLMN.
  • the uplink data can be routed to the target EAS through the second UPF, and the source EAS can be migrated to the second PLMN.
  • the target EAS of the second PLMN can ensure service continuity.
  • FIG. 5 is a schematic diagram of an application scenario of the method for migrating an edge application server provided by an embodiment of the present disclosure.
  • the method for migrating an edge application server provided by an embodiment of the present disclosure can be applied to the scenario shown in FIG. 5 .
  • PLMN1 PLMN1
  • HPLMN home PLMN
  • OP1 provides EHE1 (edge hosting environment), and EHE1 includes EAS1 deployed by OP1 and EAS4 deployed by OP2.
  • PLMN2 PLMN2
  • PLMN2 can be a visiting PLMN (VPLMN)
  • OP2 provides EHE2
  • EHE2 includes EAS2 deployed by OP1 and EAS3 deployed by OP2.
  • the services provided by OP1 can be obtained through OP2.
  • HPLMN can include an Access Network (AN) entity/Radio Access Network (RAN) entity, an Access and Mobility Management Function (AMF) entity, and a Session Management Function (H) entity.
  • AN Access Network
  • AMF Access and Mobility Management Function
  • H Session Management Function
  • -SMF Session Management Function
  • H-UPF user plane function
  • H-PCF policy control function
  • AF application function
  • the H-SMF in HPLMN can be inserted into UL CL/BP H-UPF, and the H-SMF in HPLMN does not need to be inserted into UL CL/BP H-UPF.
  • VPLMN may include AN entity/RAN entity, access and mobility management function (AMF) entity, session management function (V-SMF) entity, user plane function (V-UPF) entity, and policy control function (V-PCF) entities and application function (AF) entities, etc.
  • AMF access and mobility management function
  • V-SMF session management function
  • V-UPF user plane function
  • V-PCF policy control function
  • AF application function
  • Figure 6 is the fifth flowchart of the method for migrating edge application servers provided by the embodiment of the present disclosure.
  • the target EAS can be deployed in PLMN1 (HPLMN) in Figure 5, and the V-SMF can be inserted into the UL CL/BP V- UPF and configure routing rules to forward data to the target EAS.
  • the method for migrating edge application servers provided by embodiments of the present disclosure may include: Step 600 to Step 607, where:
  • Step 600 establish LBO PDU session
  • the UE currently roams to PLMN2 (VPLMN), and the UE establishes an LBO PDU session to access EAS2 deployed by OP1 in PLMN2 to use edge services.
  • PLMN2 PLMN2
  • Step 601 AF obtains the first indication information and sends the first indication information
  • AF that is, AF (V-AF) in VPLMN
  • EAS for example, EAS1 deployed by OP1
  • AF can be based on the UE's contract, federated OP agreement (for example, there is a federation agreement between different OPs), whether the alternative EAS is currently available (for example, information obtained through application layer interaction), etc.
  • the information identifies the target EAS.
  • AF may send the first indication information to NEF by calling the Nnef_TrafficInfluence_Create or Nnef_TrafficInfluence_Update service operation, or may To send the first indication information to the PCF by calling Npcf_PolicyAuthorization_Create or Npcf_PolicyAuthorization_Update.
  • the first indication information sent may include one or more of the following information:
  • Inter-PLMN relocation used to indicate EAS relocation to a different PLMN
  • PLMN ID identification of the PLMN where the target EAS is located
  • Second information EAS IP replacement information or target EAS information.
  • AF can send EAS IP Replacement information (for example, target EAS IP address, port number, etc.) to the network.
  • EAS IP Replacement information for example, target EAS IP address, port number, etc.
  • the AF can send the target EAS information (such as target EAS IP address) to the network, and send the target EAS information to the UE through the application layer.
  • target EAS information such as target EAS IP address
  • Step 602 V-SMF receives the first indication information
  • the V-PCF may receive the first indication information from the NEF or AF, and then the V-PCF may generate a PCC rule including the first indication information.
  • the V-PCF may send the first indication information to the V-SMF by calling Npcf_SMPolicyControl_UpdateNotify, where the first indication information may include first information, and the first information may include inter-PLMN relocation or PLMN ID.
  • Step 603 V-SMF selects H-SMF
  • the process of the V-SMF selecting the H-SMF may be the process of the V-SMF discovering the H-SMF.
  • V-SMF can discover H-SMF in two ways.
  • the first way to discover H-SMF can include: if V-SMF can obtain HPLMN's EAS deployment information based on local configuration or V-SMF can Subscribing to NEF of VPLMN can obtain HPLMN's EAS deployment information, then V-SMF can determine the target DNAI based on the EAS deployment information and the second information in the first instruction information (for example, EAS IP replacement information or target EAS information), Then V-SMF can send the target DNAI to V-AMF by calling Nsmf_PDUSession_SMContextStatusNotify. Then V-AMF can select H-SMF based on target DNAI. H-SMF can send Nsmf_PDUSession_Context Request to V-SMF.
  • V-SMF can discover H-SMF in two ways, the second of which discovers H-SMF
  • the method may include: V-SMF can request discovery of H-SMF from the NRF (vNRF) in the VPLMN by calling Nnrf_NFDiscovery_Request (including the ID of the home PLMN (home PLMN ID), the ID of the visiting PLMN (serving PLMN ID)), and the vNRF NRF (hNRF) query in HPLMN, H-SMF can be found according to the query results.
  • Nnrf_NFDiscovery_Request including the ID of the home PLMN (home PLMN ID), the ID of the visiting PLMN (serving PLMN ID)
  • hNRF vNRF NRF
  • Step 604 V-SMF inserts or reselects UL CL/BP V-UPF, and sends the second indication information to H-SMF;
  • the V-SMF may send second indication information to the H-SMF through Nsmf_PDUSession_Update Request, where the second indication information may include first information and second information.
  • the first information may be inter-PLMN relocation
  • the second information may be inter-PLMN relocation. It can be EAS IP replacement information or target EAS information.
  • Step 605 H-SMF selects H-PSA UPF and configures routing rules
  • the H-SMF can insert or reselect the H-PSA UPF according to the second information in the second indication information (for example, EAS IP replacement information or target EAS information).
  • the second indication information for example, EAS IP replacement information or target EAS information.
  • the H-SMF can configure the routing rule to the H-PSA UPF.
  • the routing rule is used to send the data sent by the UE with the target address as the target EAS address to the target EAS.
  • H-SMF can configure EAS IP replacement information to H-PSA.
  • Step 606 H-SMF returns confirmation information to V-SMF;
  • H-SMF can reply confirmation information to V-SMF, and the confirmation information can include tunnel information (tunnel information) from uplink data to H-PSA UPF.
  • tunnel information tunnel information
  • Step 607 After receiving the H-SMF confirmation information, V-SMF configures routing rules to UL CL/BP V-UPF.
  • V-SMF after V-SMF receives the H-SMF confirmation information, it can configure routing rules to UL CL/BP V-UPF to forward the data sent by the UE with the destination address being the source EAS address or the destination address being the destination EAS address.
  • H-PSA UPF H-PSA UPF.
  • Figure 7 is a flow chart of a method for migrating edge application servers provided by an embodiment of the present disclosure.
  • Diagram 6 The target EAS can be deployed on PLMN1 (HPLMN) in Figure 5.
  • V-SMF does not need to insert UL CL/BP V-UPF.
  • Data can be forwarded to V-PSA UPF by configuring routing rules.
  • Target EAS as shown in Figure 7, the method for migrating edge application servers provided by the embodiment of the present disclosure may include: Step 700 to Step 707, wherein:
  • Step 700 establish LBO PDU session
  • the UE currently roams to PLMN2 (VPLMN), and the UE establishes an LBO PDU session to access EAS2 deployed by OP1 in PLMN2 to use edge services.
  • PLMN2 PLMN2
  • Step 701 AF obtains the first indication information and sends the first indication information
  • AF that is, AF (V-AF) in VPLMN
  • EAS for example, EAS1 deployed by OP1
  • AF can be based on the UE's contract, federated OP agreement (for example, there is a federation agreement between different OPs), whether the alternative EAS is currently available (for example, information obtained through application layer interaction), etc.
  • the information identifies the target EAS.
  • AF may send the first indication information to NEF by calling Nnef_TrafficInfluence_Create or Nnef_TrafficInfluence_Update service operation, or may send the first indication information to PCF by calling Npcf_PolicyAuthorization_Create or Npcf_PolicyAuthorization_Update.
  • the sent first indication information may include the following information One or more types of information:
  • Inter-PLMN relocation used to indicate EAS relocation to a different PLMN
  • PLMN ID identification of the PLMN where the target EAS is located
  • Second information EAS IP replacement information or target EAS information.
  • AF can send EAS IP Replacement information (for example, target EAS IP address, port number, etc.) to the network.
  • EAS IP Replacement information for example, target EAS IP address, port number, etc.
  • the AF can send the target EAS information (such as target EAS IP address) to the network, and send the target EAS information to the UE through the application layer.
  • target EAS information such as target EAS IP address
  • Step 702 V-SMF receives the first indication information
  • the V-PCF may receive the first indication information from the NEF or AF, and then the V-PCF may Generate a PCC rule including the first indication information.
  • the V-PCF may send the first indication information to the V-SMF by calling Npcf_SMPolicyControl_UpdateNotify, where the first indication information may include first information, and the first information may include inter-PLMN relocation or PLMN ID.
  • Step 703, V-SMF selects H-SMF
  • the process of the V-SMF selecting the H-SMF may be the process of the V-SMF discovering the H-SMF.
  • V-SMF can discover H-SMF in two ways.
  • the first way to discover H-SMF can include: if V-SMF can obtain HPLMN's EAS deployment information based on local configuration or V-SMF can Subscribing to NEF of VPLMN can obtain HPLMN's EAS deployment information, then V-SMF can determine the target DNAI based on the EAS deployment information and the second information in the first instruction information (for example, EAS IP replacement information or target EAS information), Then V-SMF can send the target DNAI to V-AMF by calling Nsmf_PDUSession_SMContextStatusNotify. Then V-AMF can select H-SMF based on target DNAI. H-SMF can send Nsmf_PDUSession_Context Request to V-SMF.
  • V-SMF can discover H-SMF in two ways.
  • the second way of discovering H-SMF can include: V-SMF can call Nnrf_NFDiscovery_Request (including home PLMN ID), visit The PLMN ID (serving PLMN ID)) requests the NRF (vNRF) in the VPLMN to discover the H-SMF, and the vNRF queries the NRF (hNRF) in the HPLMN.
  • the H-SMF can be discovered based on the query results.
  • Step 704 V-SMF sends the second indication information to H-SMF;
  • the V-SMF may send second indication information to the H-SMF through Nsmf_PDUSession_Update Request, where the second indication information may include first information and second information.
  • the first information may be inter-PLMN relocation
  • the second information may be inter-PLMN relocation. It can be EAS IP replacement information or target EAS information.
  • Step 705 H-SMF selects H-PSA UPF and configures routing rules
  • the H-SMF may insert or reselect the H-PSA UPF according to the second information in the second indication information (for example, EAS IP replacement information or target EAS information).
  • the second indication information for example, EAS IP replacement information or target EAS information.
  • the H-SMF can configure the routing rule to the H-PSA UPF.
  • the routing rule is used to send the data sent by the UE with the target address as the target EAS address to the target EAS.
  • H-SMF can configure EAS IP replacement information to H-PSA.
  • Step 706, H-SMF returns confirmation information to V-SMF
  • H-SMF can reply confirmation information to V-SMF, and the confirmation information can include tunnel information (tunnel information) from uplink data to H-PSA UPF.
  • tunnel information tunnel information
  • Step 707 After receiving the H-SMF confirmation information, V-SMF configures routing rules to UL CL/BP V-UPF.
  • V-SMF can configure the routing rule to the V-PSA UPF to forward the data sent by the UE with the destination address being the source EAS address or the destination address being the target EAS address to H-PSA UPF.
  • Figure 8 is the seventh flowchart of the method for migrating edge application servers provided by the embodiment of the present disclosure.
  • the target EAS can be deployed in PLMN2 (VPLMN) in Figure 5, and H-SMF can be inserted into UL CL/BP H- UPF and configure routing rules to forward data to the target EAS.
  • the method for migrating edge application servers provided by embodiments of the present disclosure may include: Step 800 to Step 807, where:
  • Step 800 establish a PDU session
  • the UE establishes a PDU session to access EAS1 deployed by OP1 in PLMN1 to use the edge service.
  • Step 801 AF obtains the first indication information and sends the first indication information
  • AF that is, AF (H-AF) in HPLMN
  • PLMN2 EAS for example, EAS2 deployed by OP1
  • AF can be based on the UE's contract, federated OP agreement (for example, there is a federation agreement between different OPs), whether the alternative EAS is currently available (for example, information obtained through application layer interaction), etc.
  • the information identifies the target EAS.
  • AF may send the first indication information to NEF by calling Nnef_TrafficInfluence_Create or Nnef_TrafficInfluence_Update service operation, or may send the first indication information to PCF by calling Npcf_PolicyAuthorization_Create or Npcf_PolicyAuthorization_Update.
  • the sent first indication information may include the following information One or more types of information:
  • Inter-PLMN relocation used to indicate EAS relocation to a different PLMN
  • PLMN ID identification of the PLMN where the target EAS is located
  • Second information EAS IP replacement information or target EAS information.
  • AF can send EAS IP Replacement information (for example, target EAS IP address, port number, etc.) to the network.
  • EAS IP Replacement information for example, target EAS IP address, port number, etc.
  • the AF can send the target EAS information (such as target EAS IP address) to the network, and send the target EAS information to the UE through the application layer.
  • target EAS information such as target EAS IP address
  • Step 802 H-SMF receives the first indication information
  • the H-PCF may receive the first indication information from the NEF or AF.
  • the H-PCF can determine whether the UE can be authorized to access the VPLMN based on the UE information. If it is determined that the UE can be authorized to access the VPLMN, the H-PCF can generate a PCC containing the first indication information. rule. H-PCF may send the first indication information to H-SMF by calling Npcf_SMPolicyControl_UpdateNotify, where the first indication information may include first information, and the first information may include inter-PLMN relocation or PLMN ID.
  • Step 803, H-SMF selects V-SMF
  • the process of H-SMF selecting V-SMF may be the process of H-SMF discovering V-SMF.
  • H-SMF can discover V-SMF in two ways.
  • the first way to discover V-SMF can include: if H-SMF can obtain the EAS deployment information of VPLMN based on local configuration or H-SMF can The NEF subscription to HPLMN can obtain the EAS deployment information of VPLMN, then H-SMF can determine the target DNAI based on the EAS deployment information and the second information in the first indication information (for example, EAS IP replacement information or target EAS information), Then H-SMF can be called by calling Nsmf_PDUSession_SMContextStatusNotify sends target DNAI to H-AMF. Furthermore, H-AMF can select V-SMF based on target DNAI. V-SMF can send Nsmf_PDUSession_Context Request to H-SMF.
  • H-SMF can discover V-SMF in two ways.
  • the second way of discovering V-SMF can include: H-SMF can visit the V-SMF by calling Nnrf_NFDiscovery_Request (including the home PLMN ID). The ID of the PLMN (serving PLMN ID)) requests the NRF (hNRF) in the HPLMN to discover the V-SMF, and the hNRF queries the NRF (vNRF) in the VPLMN. The V-SMF can be discovered according to the query results.
  • Step 804 H-SMF inserts or reselects UL CL/BP H-UPF, and sends the second indication information to V-SMF;
  • H-SMF may send second indication information to V-SMF through Nsmf_PDUSession_Update Request, where the second indication information may include first information and second information.
  • the first information may be inter-PLMN relocation
  • the second information may be inter-PLMN relocation. It can be EAS IP replacement information or target EAS information.
  • the H-SMF may request the UDM (H-UDM) in the HPLMN whether the UE can be authorized to access the VPLMN.
  • H-UDM UDM
  • Step 805 V-SMF selects V-PSA UPF and configures routing rule
  • the V-SMF can insert or reselect the V-PSA UPF according to the second information in the second indication information (for example, EAS IP replacement information or target EAS information).
  • the second indication information for example, EAS IP replacement information or target EAS information.
  • the V-SMF can configure the routing rule to the V-PSA UPF.
  • the routing rule is used to send the data sent by the UE with the target address as the target EAS address to the target EAS.
  • V-SMF can configure EAS IP replacement information to V-PSA.
  • V-SMF can reply confirmation information to H-SMF, and the confirmation information can include tunnel information (tunnel information) from uplink data to V-PSA UPF.
  • tunnel information tunnel information
  • Step 807 After receiving the V-SMF confirmation information, the H-SMF configures the UL CL/BP H-UPF Set routing rule.
  • H-SMF can configure routing rules to UL CL/BP H-UPF to forward the data sent by the UE with the destination address being the source EAS address or the destination address being the target EAS address.
  • V-PSA UPF V-PSA UPF.
  • Figure 9 is the eighth flowchart of the method for migrating edge application servers provided by the embodiment of the present disclosure.
  • the target EAS can be deployed in PLMN2 (VPLMN) in Figure 5, and H-SMF can not be inserted into UL CL/BP H -UPF, the data can be forwarded to the target EAS by configuring routing rules (routing rules) to the H-PSA UPF.
  • the method for migrating edge application servers provided by embodiments of the present disclosure may include: Step 900 to Step 907 ,in:
  • Step 900 establish a PDU session
  • the UE establishes a PDU session to access EAS1 deployed by OP1 in PLMN1 to use the edge service.
  • Step 901 AF obtains the first indication information and sends the first indication information
  • AF that is, AF (H-AF) in HPLMN
  • PLMN2 EAS for example, EAS2 deployed by OP1
  • AF can be based on the UE's contract, federated OP agreement (for example, there is a federation agreement between different OPs), whether the alternative EAS is currently available (for example, information obtained through application layer interaction), etc.
  • the information identifies the target EAS.
  • AF may send the first indication information to NEF by calling Nnef_TrafficInfluence_Create or Nnef_TrafficInfluence_Update service operation, or may send the first indication information to PCF by calling Npcf_PolicyAuthorization_Create or Npcf_PolicyAuthorization_Update.
  • the sent first indication information may include the following information One or more types of information:
  • Inter-PLMN relocation used to indicate EAS relocation to a different PLMN
  • PLMN ID identification of the PLMN where the target EAS is located
  • Second information EAS IP replacement information or target EAS information.
  • AF can replace the EAS IP Replacement information (e.g., target EAS IP address, port number, etc.) is sent to the network.
  • EAS IP Replacement information e.g., target EAS IP address, port number, etc.
  • the AF can send the target EAS information (such as target EAS IP address) to the network, and send the target EAS information to the UE through the application layer.
  • target EAS information such as target EAS IP address
  • Step 902 H-SMF receives the first indication information
  • the H-PCF may receive the first indication information from the NEF or AF.
  • the H-PCF can determine whether the UE can be authorized to access the VPLMN based on the UE information. If it is determined that the UE can be authorized to access the VPLMN, the H-PCF can generate a PCC containing the first indication information. rule. H-PCF may send the first indication information to H-SMF by calling Npcf_SMPolicyControl_UpdateNotify, where the first indication information may include first information, and the first information may include inter-PLMN relocation or PLMN ID.
  • Step 903 H-SMF selects V-SMF
  • the process of H-SMF selecting V-SMF may be the process of H-SMF discovering V-SMF.
  • H-SMF can discover V-SMF in two ways.
  • the first way to discover V-SMF can include: if H-SMF can obtain the EAS deployment information of VPLMN based on local configuration or H-SMF can Subscribing to HPLMN's NEF can obtain VPLMN's EAS deployment information, then H-SMF can determine the target DNAI based on the EAS deployment information and the second information in the first instruction information (for example, EAS IP replacement information or target EAS information), Then H-SMF can send the target DNAI to H-AMF by calling Nsmf_PDUSession_SMContextStatusNotify. Then H-AMF can select V-SMF based on target DNAI. V-SMF can send Nsmf_PDUSession_Context Request to H-SMF.
  • H-SMF can discover V-SMF in two ways.
  • the second way of discovering V-SMF can include: H-SMF can visit the V-SMF by calling Nnrf_NFDiscovery_Request (including the home PLMN ID). The ID of the PLMN (serving PLMN ID)) requests the NRF (hNRF) in the HPLMN to discover the V-SMF, and the hNRF queries the NRF (vNRF) in the VPLMN. The V-SMF can be discovered according to the query results.
  • Step 904 H-SMF sends the second indication information to V-SMF;
  • H-SMF may send second indication information to V-SMF through Nsmf_PDUSession_Update Request, where the second indication information may include first information and second information.
  • the first information may be inter-PLMN relocation
  • the second information may be inter-PLMN relocation. It can be EAS IP replacement information or target EAS information.
  • the H-SMF may request the UDM (H-UDM) in the HPLMN whether the UE can be authorized to access the VPLMN.
  • H-UDM UDM
  • Step 905 V-SMF selects V-PSA UPF and configures routing rules
  • the V-SMF can insert or reselect the V-PSA UPF according to the second information in the second indication information (for example, EAS IP replacement information or target EAS information).
  • the second indication information for example, EAS IP replacement information or target EAS information.
  • the V-SMF can configure the routing rule to the V-PSA UPF.
  • the routing rule is used to send the data sent by the UE with the target address as the target EAS address to the target EAS.
  • V-SMF can configure EAS IP replacement information to V-PSA.
  • Step 906 V-SMF returns confirmation information to H-SMF;
  • V-SMF can reply confirmation information to H-SMF, and the confirmation information can include tunnel information (tunnel information) from uplink data to V-PSA UPF.
  • tunnel information tunnel information
  • Step 907 After receiving the V-SMF confirmation information, H-SMF configures the routing rule to H-PSA UPF.
  • H-SMF can configure the routing rule to the H-PSA UPF to forward the data sent by the UE with the destination address being the source EAS address or the destination address being the target EAS address to the V-PSA UPF.
  • Figure 10 is a schematic structural diagram of the first SMF provided by an embodiment of the present disclosure.
  • the network side device includes a memory 1020, a transceiver 1000, and a processor 1010, where:
  • Memory 1020 is used to store computer programs; transceiver 1000 is used to send and receive data under the control of the processor 1010; processor 1010 is used to read the computer program in the memory 1020 and perform the following operations:
  • Receive first indication information the first indication information being used to instruct the source EAS of the first PLMN to Migrate to the target EAS of the second PLMN;
  • the transceiver 1000 is used to receive and send data under the control of the processor 1010.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1010 and various circuits of the memory represented by memory 1020 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.
  • the transceiver 1000 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1010 when performing operations.
  • the processor 1010 can be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • sending the second indication information to the second SMF in the second PLMN includes:
  • the second indication information Based on the first indication information, determine the second indication information, where the second indication information is used to instruct migration of the source EAS to the target EAS;
  • the first UPF is: a UPF that supports UL CL/BP or a UPF that supports PSA.
  • configuring the first routing rule to the first UPF in the first PLMN includes:
  • the first UPF is a UPF supporting UL CL/BP
  • the second SMF based on the second SMF Send the confirmation information to configure the first routing rule to the UPF that supports UL CL/BP
  • the first routing rule is configured to the UPF that supports PSA based on the confirmation information sent by the second SMF.
  • the operation before configuring the first routing rule to the UPF supporting UL CL/BP based on the confirmation information sent by the second SMF, the operation further includes:
  • configuring a first routing rule to the first UPF in the first PLMN includes:
  • the first routing rule is configured to the UPF supporting PSA.
  • the confirmation information sent by the second SMF includes tunnel information corresponding to the second UPF
  • configuring the first routing rule to the first UPF in the first PLMN includes:
  • the first routing rule is configured to the first UPF.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • receiving the first indication information includes:
  • the receiving indication information includes:
  • the operation further includes:
  • the first request message is used to request the first AMF to select the SMF in the second PLMN;
  • the second SMF After receiving the SMF selection information sent by the first AMF, the second SMF is determined.
  • the operation before determining the target DNAI based on the second information and the EAS deployment information of the second PLMN, the operation further includes:
  • the operation before sending the second indication information to the second SMF in the second PLMN, the operation further includes:
  • the second SMF After receiving the query information sent by the first NRF, the second SMF is determined.
  • the second PLMN is a visited PLMN or a home PLMN.
  • the operation before sending the second indication information to the second SMF in the second PLMN, the operation further includes:
  • the second PLMN When the second PLMN is a visiting PLMN, send a third request message to the UDM of the first PLMN, where the third request message is used to request confirmation whether the UE can be authorized to access the second PLMN;
  • the second PLMN is any one of one or more third PLMNs
  • the third PLMN is not the same as the first PLMN
  • the third PLMN includes one or more alternatives. EAS.
  • first SMF provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the first SMF, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Figure 11 is a schematic structural diagram of the second SMF provided by an embodiment of the present disclosure.
  • the network side device includes a memory 1120, a transceiver 1100, and a processor 1110, where:
  • Memory 1120 is used to store computer programs; transceiver 1100 is used to send and receive data under the control of the processor 1110; processor 1110 is used to read the computer program in the memory 1120 and perform the following operations:
  • the second UPF is determined by the second SMF based on the second indication information, and the second routing rule Rules are used to route upstream data to the target EAS;
  • the transceiver 1100 is used to receive and transmit data under the control of the processor 1110.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1110 and various circuits of the memory represented by memory 1120 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.
  • the transceiver 1100 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1110 when performing operations.
  • the processor 1110 can be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the second indication information includes one or more of the following information:
  • inter-PLMN relocation indication inter-PLMN relocation indication
  • Second information EAS IP replacement information or information about the target EAS.
  • the second indication information includes the second information
  • the second routing rule before configuring the second routing rule to the second UPF of the second PLMN based on the second indication information, the The above operations also include:
  • a second UPF is inserted or reselected.
  • the operation further includes:
  • the second indication information includes the second information, and the second information is the EAS IP replacement information, configure the EAS IP replacement information to the second UPF.
  • the operation further includes:
  • a third routing rule is configured to the second UPF of the second PLMN, where the third routing rule is used to route downlink data to the first UPF in the first PLMN.
  • the confirmation information includes tunnel information corresponding to the second UPF.
  • the above-mentioned second SMF provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the second SMF, and can achieve the same technical effect, which will not be discussed here.
  • the parts and beneficial effects in this embodiment that are the same as those in the method embodiment will be described in detail.
  • Figure 12 is a schematic structural diagram of an AF provided by an embodiment of the present disclosure.
  • the network side device includes a memory 1220, a transceiver 1200, and a processor 1210, where:
  • Memory 1220 is used to store computer programs; transceiver 1200 is used to send and receive data under the control of the processor 1210; processor 1210 is used to read the computer program in the memory 1220 and perform the following operations:
  • first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the transceiver 1200 is used to receive and transmit data under the control of the processor 1210.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1210 and various types of memories represented by memory 1220. 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.
  • the transceiver 1200 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1210 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1210 when performing operations.
  • the processor 1210 can be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • sending the first indication information includes:
  • sending the first indication information includes:
  • the second information is sent to the first SMF of the first PLMN.
  • sending the first indication information includes:
  • the second information is sent to the UE through the application layer.
  • Figure 13 is a schematic structural diagram of a PCF provided by an embodiment of the present disclosure.
  • the network side device includes a memory 1320, a transceiver 1300, and a processor 1310, where:
  • Memory 1320 used to store computer programs
  • transceiver 1300 used to operate on the processor Send and receive data under the control of 1310
  • processor 1310 used to read the computer program in the memory 1320 and perform the following operations:
  • Receive first indication information the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the transceiver 1300 is used to receive and send data under the control of the processor 1310.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1310 and various circuits of the memory represented by memory 1320 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.
  • the transceiver 1300 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1310 when performing operations.
  • the processor 1310 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device (CPLD), the processor can also adopt a multi-core architecture.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • FPGA field programmable gate array
  • CPLD Complex Programmable Logic Device
  • receiving the first indication information includes:
  • the operation before sending the PCC rule carrying the first indication information to the first SMF of the first PLMN, the operation further includes:
  • the second PLMN is a visited PLMN
  • a PCC rule carrying the first indication information is generated.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • Figure 14 is one of the structural schematic diagrams of a device for migrating edge application servers provided by an embodiment of the present disclosure. As shown in Figure 14, the device is applied to the first SMF and includes: a first receiving unit 1401, a first sending unit 1402 and First configuration unit 1403, where:
  • the first receiving unit 1401 is configured to receive first indication information, where the first indication information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the first sending unit 1402 is configured to send second indication information to the second SMF in the second PLMN, where the second indication information is determined based on the first indication information;
  • the first configuration unit 1403 after receiving the confirmation information sent by the second SMF, configures a first routing rule to the first UPF in the first PLMN.
  • the first routing rule is used to route uplink data to the first UPF.
  • the first sending unit is specifically used for:
  • the second indication information Based on the first indication information, determine the second indication information, where the second indication information is used to instruct migration of the source EAS to the target EAS;
  • the first UPF is: a UPF that supports UL CL/BP or a UPF that supports PSA.
  • the first configuration unit is specifically used for:
  • the first UPF is a UPF that supports UL CL/BP
  • the first routing rule is configured to the UPF that supports PSA based on the confirmation information sent by the second SMF.
  • the device further includes a first selection unit, the first selection unit is used for:
  • the confirmation information sent by the second SMF includes tunnel information corresponding to the second UPF, and the first configuration unit is specifically configured to:
  • the first routing rule is configured to the first UPF.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the first receiving unit is specifically used to:
  • the first receiving unit is specifically used to:
  • the first indication information includes the second information
  • the device further includes a first determining unit, and when the first indication information includes the second information, the second indication information is sent to the second SMF in the second PLMN.
  • the first determination unit was used for:
  • the second SMF After receiving the SMF selection information sent by the first AMF, the second SMF is determined.
  • the device further includes a first acquisition unit, and before determining the target DNAI based on the second information and the EAS deployment information of the second PLMN, the first acquisition unit is configured to:
  • the device further includes a second determination unit, and before sending the second indication information to the second SMF in the second PLMN, the second determination unit is configured to:
  • the second SMF After receiving the query information sent by the first NRF, the second SMF is determined.
  • the second PLMN is a visited PLMN or a home PLMN.
  • the device further includes a third determining unit, and before sending the second indication information to the second SMF in the second PLMN, the third determining unit is configured to:
  • the second PLMN When the second PLMN is a visiting PLMN, send a third request message to the UDM of the first PLMN, where the third request message is used to request confirmation whether the UE can be authorized to access the second PLMN;
  • the second PLMN is any one of one or more third PLMNs
  • the third PLMN is not the same as the first PLMN
  • the third PLMN includes one or more alternatives. EAS.
  • Figure 15 is the second structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure. As shown in Figure 15, the device is applied to the second SMF and includes: a second receiving unit 1501, a second configuration unit 1502 and The second sending unit 1503, where:
  • the second receiving unit 1501 is configured to receive the second instruction information sent by the first SMF of the first PLMN, where the second instruction information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the second configuration unit 1502 is configured to configure a second routing rule to the second UPF of the second PLMN based on the second indication information, where the second UPF is the second SMF based on the second indication information. It is determined that the second routing rule is used to route uplink data to the target EAS;
  • the second sending unit 1503 is configured to send confirmation information to the first SMF.
  • the second indication information includes one or more of the following information:
  • inter-PLMN relocation indication inter-PLMN relocation indication
  • Second information EAS IP replacement information or information about the target EAS.
  • the device further includes a second selection unit, and in the case where the second indication information includes the second information, based on the second indication information, the third selection unit of the second PLMN is selected.
  • the second selection unit is used to:
  • a second UPF is inserted or reselected.
  • the second configuration unit is further configured to:
  • the second indication information includes the second information, and the second information is the EAS IP replacement information, configure the EAS IP replacement information to the second UPF.
  • the second configuration unit is further configured to:
  • a third routing rule is configured to the second UPF of the second PLMN, where the third routing rule is used to route downlink data to the first UPF in the first PLMN.
  • the confirmation information includes tunnel information corresponding to the second UPF.
  • Figure 16 is the third structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure. As shown in Figure 16, the device is applied to AF and includes: a second acquisition unit 1601 and a third sending unit 1602, wherein:
  • the second acquisition unit 1601 is configured to acquire first indication information, where the first indication information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the third sending unit 1602 is used to send the first indication information.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • the third sending unit is specifically used for:
  • the third sending unit is specifically used for:
  • the second information is sent to the first SMF of the first PLMN.
  • the third sending unit is specifically used for:
  • the second information is sent to the UE through the application layer.
  • Figure 17 is the fourth structural schematic diagram of a device for migrating edge application servers provided by an embodiment of the present disclosure. As shown in Figure 17, the device is applied to PCF and includes: a third receiving unit 1701 and a fourth sending unit 1702, wherein:
  • the third receiving unit 1701 is configured to receive first indication information, where the first indication information is used to instruct the migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the fourth sending unit 1702 is configured to send the PCC rule carrying the first indication information to the first SMF of the first PLMN based on the first indication information.
  • the third receiving unit is specifically used for:
  • the device further includes a generating unit.
  • the generating unit Before sending the PCC rule carrying the first indication information to the first SMF of the first PLMN, the generating unit is specifically configured to:
  • the second PLMN is a visited PLMN
  • a PCC rule carrying the first indication information is generated.
  • the first indication information includes one or more of the following information:
  • inter-PLMN relocation indication and/or the ID of the second PLMN are first information: inter-PLMN relocation indication and/or the ID of the second PLMN.
  • Second information EAS IP replacement information or information about the target EAS.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above integrated units can be implemented in the form of hardware or software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .
  • embodiments of the present disclosure also provide a processor-readable storage medium.
  • the processor-readable storage medium stores a computer program.
  • the computer program is used to cause the processor to execute the methods provided by the above embodiments. Methods include, for example:
  • Receive first indication information the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the second UPF is determined by the second SMF based on the second indication information, and the second routing rule Rules are used to route upstream data to the target EAS;
  • first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • Receive first indication information the first indication information being used to instruct migration of the source EAS of the first PLMN to the target EAS of the second PLMN;
  • the processor-readable storage medium may be any available media or data storage device that the processor can access, including but not limited to magnetic storage (such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.
  • magnetic storage such as floppy disks, hard disks, tapes, magneto-optical disks (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)
  • 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
  • processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.
  • processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to
  • the instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

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Abstract

本公开实施例提供一种迁移边缘应用服务器的方法、装置、网元及存储介质,所述方法包括:接收第一指示信息,第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;向第二PLMN中的第二SMF发送第二指示信息;接收第二SMF发送的确认信息后,向第一PLMN中的第一UPF配置第一路由规则。本公开实施例通过接收第一指示信息,第一SMF向第二SMF发送第二指示信息,进而可以在接收到确认信息之后,向第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据路由至目标EAS。

Description

迁移边缘应用服务器的方法、装置、网元及存储介质
相关申请的交叉引用
本公开要求于2022年05月06日提交的申请号为202210488606.9,发明名称为“迁移边缘应用服务器的方法、装置、网元及存储介质”的中国专利申请的优先权,其通过引用方式全部并入本文。
技术领域
本公开涉及无线通信技术领域,尤其涉及一种迁移边缘应用服务器的方法、装置、网元及存储介质。
背景技术
移动通信系统通过引入联合操作平台(Federation of Operator Platforms),可以允许一个操作平台(Operator Platforms,OP)在其他OP部署边缘应用,并且签约用户可以通过归属OP获得其他OP的应用服务。OP可以属于同一公共陆地移动网络(Public Land Mobile Network,PLMN)或不同的PLMN。
相关技术中,仅考虑在相同PLMN中的不同边缘宿主环境(Edge Host Environment,EHE)部署的边缘应用服务器(Edge Application Server,EAS)之间迁移(relocation),而当EAS在不同PLMN(OP部署在不同PLMN)之间迁移时,无法保证服务连续性。
发明内容
本公开实施例提供一种迁移边缘应用服务器的方法、装置、网元及存储介质,用以解决现有技术中当EAS在不同PLMN之间迁移时,无法保证服务连续性的缺陷,实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
第一方面,本公开实施例提供一种迁移边缘应用服务器的方法,应用于 第一SMF,包括:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述向所述第二PLMN中的第二SMF发送第二指示信息,包括:
基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
向所述第二SMF发送所述第二指示信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
在所述第一UPF为支持UL CL/BP的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则;或者
在所述第一UPF为支持PSA的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持PSA的UPF配置所述第一路由规则。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则之前,所述方法还包括:
插入或重新选择支持UL CL/BP的UPF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述接收第一指示信息,包括:
接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述第一指示信息包括所述第二信息的情况下,所述接收第一指示信息,包括:
接收所述第一PLMN的AF发送的所述第二信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
第二方面,本公开实施例还提供一种迁移边缘应用服务器的方法,应用于第二SMF,包括:
接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规 则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
向所述第一SMF发送确认信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述第二指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述方法还包括:
基于所述第二信息,插入或重新选择第二UPF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述确认信息包括所述第二UPF对应的隧道信息。
第三方面,本公开实施例还提供一种迁移边缘应用服务器的方法,应用于AF,包括:
获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
发送所述第一指示信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述发送所述第一指示信息,包括:
向所述第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,向所述第一PLMN的第一SMF发送所述第二信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
第四方面,本公开实施例还提供一种迁移边缘应用服务器的方法,应用于PCF,包括:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述接收第一指示信息,包括:
接收所述第一PLMN的AF发送的所述第一指示信息;或者
接收所述第一PLMN的NEF发送的所述第一指示信息。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,在所述向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述方法还包括:
在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访 PLMN,所述第二PLMN为目标EAS所在PLMN;
基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
可选地,根据本公开一个实施例的迁移边缘应用服务器的方法,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
第五方面,本公开实施例还提供一种第一SMF,包括存储器,收发机,处理器,其中:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并实现如上所述第一方面所述的迁移边缘应用服务器的方法的步骤。
第六方面,本公开实施例还提供一种第二SMF,包括存储器,收发机,处理器,其中:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并实现如上所述第二方面所述的迁移边缘应用服务器的方法的步骤。
第七方面,本公开实施例还提供一种AF,包括存储器,收发机,处理器,其中:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并实现如上所述第三方面所述的迁移边缘应用服务器的方法的步骤。
第八方面,本公开实施例还提供一种PCF,包括存储器,收发机,处理器,其中:
存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并实现如上所述第四方面所述的迁移边缘应用服务器的方法的步骤。
第九方面,本公开实施例还提供一种迁移边缘应用服务器的装置,应用于第一SMF,包括:
第一接收单元,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第一发送单元,用于向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
第一配置单元,接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
第十方面,本公开实施例还提供一种迁移边缘应用服务器的装置,应用于第二SMF,包括:
第二接收单元,用于接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第二配置单元,用于基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
第二发送单元,用于向所述第一SMF发送确认信息。
第十一方面,本公开实施例还提供一种迁移边缘应用服务器的装置,应用于AF,包括:
第二获取单元,用于获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第三发送单元,用于发送所述第一指示信息。
第十二方面,本公开实施例还提供一种迁移边缘应用服务器的装置,应用于PCF,包括:
第三接收单元,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第四发送单元,用于基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
第十三方面,本公开实施例还提供一种处理器可读存储介质,所述处理 器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行如上所述第一方面所述的迁移边缘应用服务器的方法的步骤或执行如上所述第二方面所述的迁移边缘应用服务器的方法的步骤或执行如上所述第三方面所述的迁移边缘应用服务器的方法的步骤或执行如上所述第四方面所述的迁移边缘应用服务器的方法的步骤。
本公开实施例提供的迁移边缘应用服务器的方法、装置、网元及存储介质,通过接收第一指示信息,第一SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
附图说明
为了更清楚地说明本公开实施例或相关技术中的技术方案,下面将对实施例或相关技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本公开的一些实施例,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是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之一;
图2是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之二;
图3是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之三;
图4是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之四;
图5是本公开实施例提供的迁移边缘应用服务器的方法的应用场景示意图;
图6是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之五;
图7是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之六;
图8是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之七;
图9是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之八;
图10是本公开实施例提供的第一SMF的结构示意图;
图11是本公开实施例提供的第二SMF的结构示意图;
图12是本公开实施例提供的AF的结构示意图;
图13是本公开实施例提供的PCF的结构示意图;
图14是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之一;
图15是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之二;
图16是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之三;
图17是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之四。
具体实施方式
为了便于更加清晰地理解本公开各实施例,首先对一些相关的背景知识进行如下介绍。
移动边缘计算(Mobile Edge Computing,MEC)技术通过将计算存储能力与业务服务能力向网络边缘迁移,尽可能不用将数据回传到云端,减少数 据往返云端的等待时间和网络成本。基于第五代移动通信技术(5th Generation Mobile Communication Technology,5G)的分布式云基础设施,在边缘云化构建5G用户面和5G MEC节点,5G MEC节点提供MEC应用平台实现对第三方应用的部署和管理能力。用户可以通过MEC应用获得服务。
5G定义了应用功能(Application Function,AF),它可以向非授信域的网络开放功能(Network Exposure Function,NEF)或者向授信域的策略控制功能(Policy Control Function,PCF)发送AF请求(Request),其中包含目标数据网络名(Data Network Name,DNN)、应用ID、N6路由需求、应用位置等一系列参数。PCF可以根据AF提供的这些信息参数,结合自身策略控制,为目标协议数据单元(Protocol Data Unit,PDU)会话(Session)业务流生成策略与计费控制规则(Policy and Charging Control Rule-PCC Rule,PCC),并通过会话管理功能(Session Management Function,SMF)为其选择一个合适的用户面功能(User Plan Function,UPF)。MEC提供应用基础设施资源编排、应用实例化和应用规则配置等功能。因此,当MEC部署在5G系统中时,MEC也可以充当Application Function角色,代表部署在MEC上的应用与5G系统控制面交互。
5G国际漫游的组网可以包括两种方案:第一种方案,漫游地路由/本地疏导(Local Breakout)方案;第二种方案,归属路由(Home-Routed)方案。5G系统本地疏导(Local Break Out,LBO)漫游场景下结合边缘计算的网络架构可以包括两种网络架构:第一种网络架构,通过上行数据分类器(Uplink Classifier,UL CL)/分支点(Branching Point,BP)访问边缘计算服务器的网络架构;第二种网络架构,无UL CL/BP参与情况下的访问边缘计算服务器的网络架构。
为了支持选择性数据路由到数据网络(Data Network,DN),SMF可以控制PDU会话的数据路径,以保证PDU会话能够同时对应多个N6接口(UPF与DN之间的接口),每个支持PDU会话的锚点提供到同一个DN的不同接入路径,实现本地分流,可通过上行数据分类器(Uplink Classifier,UL CL)功能,互联网协议第6版(Internet Protocol Version 6,IPv6)多归属功能分 支点(Branching Point,BP),此架构称为会话疏导(session breakout)连接模型。
移动通信系统通过引入Federation of Operator Platforms,可以允许一个OP在另一个OP上部署由应用提供者(Application Providers)提供的边缘应用(不同OP之间有联合协议(federation agreement))。并且允许一个OP在其他OP部署边缘应用,并且签约用户可以通过归属OP获得其他OP的应用服务。OP可以属于同一PLMN或不同的PLMN。
相关技术中,对于EAS relocation仅考虑在相同PLMN中的不同EHE部署的EAS之间的迁移。当由于AF内部触发relocation时,AF可以发送EAS relocation指示或目标(target)数据网络接入标识(Data Network Access Identifier,DNAI)等信息到NEF/PCF,通过流量影响(traffic influence)机制触发会话的用户面重配置。
相关技术要求所有5G核心网(5G Core Network,5GC)功能实体(AF、SMF、UPF)等属于相同的PLMN,即非漫游场景的归属公用陆地移动网(Home Public Land Mobile Network,HPLMN)或LBO模式的拜访公用陆地移动网(Visited Public Land Mobile Network,VPLMN)。无法支持跨PLMN的relocation。并且相关技术中通过target DNAI来指示选择UPF,而DNAI为网络维护的信息,边缘服务提供商难以获得最新的DNAI。可见,相关技术难以支持跨PLMN的EAS relocation,并确保服务连续性。
为了克服上述缺陷,本公开提供一种迁移边缘应用服务器的方法、装置、网元及存储介质,通过第一SMF向第二PLMN中的第二SMF发送第二指示信息以及向第一PLMN中的第一UPF配置第一路由规则,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
本公开实施例中术语“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上,其它量词与之类似。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开一部分实施例,并不是全部的实施例。基于本公开中的实施例,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,都属于本公开保护的范围。
本公开实施例提供的技术方案可以适用于多种系统,尤其是5G系统。例如适用的系统可以是全球移动通讯(global system of mobile communication,GSM)系统、码分多址(code division multiple access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)通用分组无线业务(general packet radio service,GPRS)系统、长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)系统、高级长期演进(long term evolution advanced,LTE-A)系统、通用移动系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)系统、5G新空口(New Radio,NR)系统等。这多种系统中均包括终端设备和网络设备。系统中还可以包括核心网部分,例如演进的分组系统(Evloved Packet System,EPS)、5G系统(5GS)等。
本公开实施例涉及的终端设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中,终端设备的名称可能也不相同,例如在5G系统中,终端设备可以称为用户设备(User Equipment,UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为系统、 订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本公开实施例中并不限定。
本公开实施例涉及的网络设备,可以是基站,该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet Protocol,IP)分组进行相互更换,作为无线终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如,本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications,GSM)或码分多址接入(Code Division Multiple Access,CDMA)中的网络设备(Base Transceiver Station,BTS),也可以是带宽码分多址接入(Wide-band Code Division Multiple Access,WCDMA)中的网络设备(NodeB),还可以是长期演进(long term evolution,LTE)系统中的演进型网络设备(evolutional Node B,eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB),也可以是家庭演进基站(Home evolved Node B,HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等,本公开实施例中并不限定。在一些网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点和分布单元(distributed unit,DU)节点,集中单元和分布单元也可以地理上分开布置。
图1是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之一,如图1所示,本公开实施例提供一种迁移边缘应用服务器的方法,其执行主体可以为第一PLMN中的第一SMF。该方法包括:
步骤101,接收第一指示信息,所述第一指示信息用于指示将第一PLMN中的源EAS向第二PLMN的目标EAS迁移;
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN中的第一SMF可以接收第一指示信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可以理解的是,第一SMF是第一PLMN中的网元。
可选地,第一SMF可以从一个或多个功能实体接收第一指示信息。
步骤102,向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
具体地,在接收到第一指示信息之后,为了使第二SMF确定第二PLMN中的第二UPF以及向第二UPF配置路由规则,第一SMF可以向第二PLMN中的第二SMF发送第二指示信息。
可选地,第一SMF可以通过一种或多种方式选择第二SMF,在确定第二SMF之后,可以向第二SMF发送第二指示信息。
步骤103,接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
具体地,在向第二SMF发送第二指示信息之后,为了向第一PLMN中的第一UPF配置路由规则,可以等待接收第二SMF发送的确认信息,在接收到该确认信息之后,可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则,进而第一SMF可以向第一UPF配置第一路由规则,该第一路由规则可以用于将上行数据路由至第二PLMN中的第二UPF,第二UPF对应的路由规则可以用于将上行数据路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移。
可以理解的是,本公开实施例提供的迁移边缘应用服务器的方法还可以应用于迁移边缘应用。
本公开实施例提供的迁移边缘应用服务器的方法,通过接收第一指示信息,第一SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确 认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述向所述第二PLMN中的第二SMF发送第二指示信息,包括:
基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
向所述第二SMF发送所述第二指示信息。
具体地,在接收到第一指示信息之后,为了使第二SMF确定第二PLMN中的第二UPF以及向第二UPF配置路由规则,第一SMF可以基于第一指示信息,确定第二指示信息,进而可以向第二PLMN中的第二SMF发送第二指示信息,第二指示信息可以与第一指示信息相同,第二指示信息也可以与第一指示信息不相同,第二指示信息可以用于指示将源EAS向第二PLMN的目标EAS迁移。
因此,第一SMF可以确定第二指示信息并向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
具体地,在向第二SMF发送第二指示信息之后,为了向第一PLMN中的第一UPF配置路由规则,可以等待接收第二SMF发送的确认信息,在接收到该确认信息之后,可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则,进而第一SMF可以向第一UPF配置第一路由规则,其中,第一UPF可以是支持UL CL/BP的UPF,第一UPF还可以是支持PSA的UPF。
因此,第一SMF可以向第一PLMN中的第一UPF配置第一路由规则, 进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则;其中,所述第一UPF支持PSA或支持UL CL/BP。
可选地,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
在所述第一UPF为支持UL CL/BP的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则;或者
在所述第一UPF为支持PSA的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持PSA的UPF配置所述第一路由规则。
具体地,在向第二SMF发送第二指示信息之后,为了向第一PLMN中的第一UPF配置路由规则,可以等待接收第二SMF发送的确认信息,在接收到该确认信息之后,可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则,进而在第一UPF为支持UL CL/BP的UPF的情况下,第一SMF可以向支持UL CL/BP的UPF配置第一路由规则,或者在第一UPF为支持PSA的UPF的情况下,第一SMF可以向支持PSA的UPF配置第一路由规则。
因此,第一SMF可以向支持UL CL/BP的UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则之前,所述方法还包括:
插入或重新选择支持UL CL/BP的UPF。
具体地,在第一UPF为支持UL CL/BP的UPF的情况下,为了向支持UL CL/BP的UPF配置路由规则,在向支持UL CL/BP的UPF配置第一路由 规则之前,第一SMF可以插入或重新选择支持UL CL/BP的UPF,进而在接收到确认信息之后,可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则,进而第一SMF可以向支持UL CL/BP的UPF配置第一路由规则。
因此,第一SMF可以插入或重新选择支持UL CL/BP的UPF,以及向支持UL CL/BP的UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第二SMF发送的确认信息包括所述第二UPF对应的隧道信息,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
基于所述第二UPF对应的隧道信息,向所述第一UPF配置所述第一路由规则。
具体地,在向第二SMF发送第二指示信息之后,为了向第一PLMN中的第一UPF配置路由规则,可以等待接收第二SMF发送的确认信息,在接收到该确认信息之后,可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则;
具体地,在第二SMF发送的确认信息包括第二UPF对应的隧道信息的情况下,第一SMF可以基于第二UPF对应的隧道信息,向第一UPF配置第一路由规则,该第一路由规则可以用于将上行数据路由至第二PLMN中的第二UPF,第二UPF对应的路由规则可以用于将上行数据路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移。
因此,在接收到第二SMF发送的确认信息之后,第一SMF可以基于第二UPF对应的隧道信息,向第一PLMN中的第一UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN中的第一SMF可以接收第一指示信息,该第一指示信息可以包括一种或多种信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一SMF可以接收第一指示信息,该第一指示信息可以包括第一信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一SMF可以接收第一指示信息,该第一指示信息可以包括第二信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一SMF可以接收第一指示信息,该第一指示信息可以包括第一信息和第二信息,基于第一信息和第二信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是inter-PLMN迁移指示,用于指示将源EAS迁移至其他PLMN的EAS。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是第二PLMN的ID,用于指示将源EAS迁移至该ID对应的PLMN的EAS。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是EAS IP Replacement信息,该EAS IP Replacement信息可以包括目标EAS的IP地址,端口号等。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是目标EAS的信息,该目标EAS的信息可以包括目标EAS的IP地址。
可选地,在接收到第一指示信息之后,第二SMF可以基于第一指示信息确定第二指示信息。例如,在第一指示信息包括第一信息的情况下,可以确定第二指示信息包括:inter-PLMN迁移指示。例如,在第一指示信息包括第二信息的情况下,可以确定第二指示信息包括:EAS IP更换信息或目标EAS的信息。
因此,第一指示信息可以包括一种或多种信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述接收第一指示信息,包括:
接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN中的第一SMF可以接收携带有第一指示信息的PCC规则,基于PCC规则可以获取第一指示信息,基于第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,通过PCF接收的第一指示信息可以包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
因此,基于接收到的携带有第一指示信息的PCC规则,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述第一指示信息包括所述第二信息的情况下,所述接收第一指示信息,包括:
接收所述第一PLMN的AF发送的所述第二信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN中的第一SMF可以接收第一PLMN的AF发送的第二信息,基于第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
因此,可以通过第一PLMN的AF获取第二信息,基于接收到第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
具体地,为了选择第二PLMN中的第二SMF,在向第二PLMN中的第二SMF发送第二指示信息之前,在第一指示信息包括第二信息的情况下,第一SMF可以基于第二信息和第二PLMN的EAS部署信息(EAS deployment information),确定目标DNAI(target DNAI),进而可以向第一PLMN的第一AMF发送携带有目标DNAI的第一请求消息,进而在接收第一AMF发送的选择SMF的信息之后,可以确定第二SMF,其中,第一AMF可以是第一PLMN的接入与移动性管理功能(Access and Mobility Management Function,AMF)。
可选地,向第一PLMN的第一AMF发送第一请求消息的方式可以是通过调用Nsmf_PDUSession_SMContextStatusNotify的方式。
因此,第一SMF可以选择第二SMF以及向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二 SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI之前,所述方法还包括:
基于所述第一SMF的本地配置,获取所述第二PLMN的EAS部署信息;或者
通过向所述第一PLMN的NEF进行订阅的方式,获取所述第二PLMN的EAS部署信息。
具体地,为了获取第二PLMN的EAS部署信息,在确定目标DNAI之前,第一SMF可以基于其本地配置,获取第二PLMN的EAS部署信息;或
具体地,为了获取第二PLMN的EAS部署信息,在确定目标DNAI之前,第一SMF通过向第一PLMN的NEF进行订阅的方式,获取第二PLMN的EAS部署信息。
因此,第一SMF可以选择第二SMF以及向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
向所述第一PLMN的第一NRF发送第二请求消息,所述第二请求消息用于请求所述第一NRF查询所述第二PLMN中的SMF;
接收所述第一NRF发送的查询信息之后,确定所述第二SMF。
具体地,为了选择第二PLMN中的第二SMF,在向第二PLMN中的第二SMF发送第二指示信息之前,第一SMF可以向第一PLMN的第一NRF 发送第二请求消息,以请求第一NRF查询第二PLMN中的SMF,进而在接收第一NRF发送的查询信息之后,可以确定第二SMF。
因此,第一SMF可以选择第二SMF以及向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第二PLMN为拜访PLMN或归属PLMN。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN中的第一SMF可以接收第一指示信息,基于接收到的第一指示信息,第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,其中,在第二PLMN为拜访PLMN的情况下,第一PLMN可以为归属PLMN,在第二PLMN为归属PLMN的情况下,第一PLMN可以为拜访PLMN。
因此,通过接收第一指示信息,第一SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,第二PLMN可以是拜访PLMN或归属PLMN,第一SMF可以向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
具体地,在向第二PLMN中的第二SMF发送第二指示信息之前,在第二PLMN为拜访PLMN的情况下,可以向第一PLMN的统一数据管理(Unified Data Management,UDM)发送第三请求消息,接收到第一PLMN的UDM回复的确认信息之后,可以确定UE可授权接入第二PLMN,进而可以向第二PLMN中的第二SMF发送第二指示信息。
因此,在第二PLMN为拜访PLMN的情况下,可以确定UE是否可授权接入第二PLMN,若确定UE可授权接入第二PLMN,可以向第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一UPF配置第一路由规则,进而用户设备发送的上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第二PLMN为一个或多个第三PLMN中的任意一个,所述第三PLMN与所述第一PLMN不为同一个,所述第三PLMN包括一个或多个备选EAS。
具体地,第三PLMN可以是包括一个或多个备选EAS的PLMN,第三PLMN与第一PLMN不为同一个,第二PLMN可以是一个或多个第三PLMN中的任意一个PLMN,第一指示信息可以用于指示将源EAS向第二PLMN的目标EAS迁移,通过接收该第一指示信息,第一SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移。
本公开实施例提供的迁移边缘应用服务器的方法,通过接收第一指示信息,第一SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以向第二PLMN中的第二SMF发送第二指示信息,以使第二SMF可以基于第二指示信息确定第二UPF,进而可以在接收到第二SMF发送的确认信息之后,向第一PLMN中的第一UPF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
图2是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之二,如图2所示,本公开实施例提供一种迁移边缘应用服务器的方法,其执行主体可以为第二PLMN中的第二SMF。该方法包括。
步骤201,接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第二PLMN中的第二SMF可以接收第一PLMN的第一SMF发送的第二指示信息,基于接收到的第二指示信息,第二SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可以理解的是,第二SMF是第二PLMN中的网元。
步骤202,基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
具体地,在接收到第一SMF发送的第二指示信息之后,为了将上行数据路由至所述目标EAS,第二SMF可以向第二PLMN的第二UPF配置第二路由规则,可以使第二UPF将接收到的上行数据路由至目标EAS。
步骤203,向所述第一SMF发送确认信息。
具体地,在向第二UPF配置第二路由规则之后,为了使第一SMF向第一PLMN中的第一UPF配置路由规则,第二SMF可以向第一SMF发送确认信息。
可以理解的是,在向第一SMF发送确认信息之后,第一SMF可以确定第二SMF已确定第二UPF并已向第二UPF配置路由规则,进而第一SMF可以向第一UPF配置第一路由规则,该第一路由规则可以用于将上行数据路由至第二PLMN中的第二UPF,第二UPF可以将上行数据路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移。
本公开实施例提供的迁移边缘应用服务器的方法,通过接收第二指示信息,第二SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而 第二SMF可以向第二UPF配置第二路由规则,进而可以向第一SMF发送确认信息,以使第一SMF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
可选地,所述第二指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第二PLMN中的第二SMF可以接收第一PLMN的第一SMF发送的第二指示信息,该第二指示信息可以包括一种或多种信息,基于接收到的第二指示信息,第二SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第二SMF可以接收第二指示信息,该第二指示信息可以包括第一信息,基于接收到的第二指示信息,第二SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第二SMF可以接收第二指示信息,该第二指示信息可以包括第二信息,基于接收到的第二指示信息,第二SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第二SMF可以接收第二指示信息,该第二指示信息可以包括第一信息和第二信息,基于第一信息和第二信息,第二SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,在第二指示信息包括第一信息的情况下,第一信息可以是inter-PLMN迁移指示,用于指示将源EAS迁移至其他PLMN的EAS。
可选地,在第二指示信息包括第二信息的情况下,第二信息可以是EAS IP Replacement信息,该EAS IP Replacement信息可以包括目标EAS的IP地址,端口号等。
可选地,在第二指示信息包括第二信息的情况下,第二信息可以是目标EAS的信息,该目标EAS的信息可以包括目标EAS的IP地址。
因此,第二指示信息可以包括一种或多种信息,通过接收第二指示信息,第二SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而第二SMF可以向第二UPF配置第二路由规则,进而可以向第一SMF发送确认信息,以使第一SMF配置第一路由规则,进而用户设备发送的上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
可选地,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述方法还包括:
基于所述第二信息,插入或重新选择第二UPF。
具体地,为了向第二UPF配置路由规则,在第二指示信息包括第二信息的情况下,第二SMF可以基于第二信息,插入或重新选择第二UPF,进而可以基于第二指示信息,向第二PLMN的第二UPF配置第二路由规则。
因此,在第二指示信息包括第二信息的情况下,第二SMF可以插入或重新选择第二UPF,进而可以向第二UPF配置第二路由规则,进而可以向第一SMF发送确认信息,以使第一SMF配置第一路由规则,进而用户设备发送的上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
具体地,在接收到第二指示信息之后,在第二指示信息包括第二信息,且第二信息为EAS IP更换信息的情况下,第二SMF可以基于第二信息向第二UPF配置EAS IP更换信息。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
具体地,在接收到第一SMF发送的指示信息第二指示信息之后,为了将目标EAS发送的下行数据路由至第一PLMN中的第一UPF,第二SMF可以向第二PLMN的第二UPF配置第三路由规则,可以使第二UPF将目标EAS发送的下行数据路由至第一UPF,进而通过第一UPF下行数据可以被转发至用户设备。
因此,第二SMF可以向第二UPF配置第二路由规则和第三路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,下行数据可以通过第二UPF路由至第一UPF并被转发至用户设备,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
可选地,所述确认信息包括所述第二UPF对应的隧道信息。
具体地,为了使第一SMF可以基于确认信息进行路由配置,在向第二UPF配置第二路由规则之后,第二SMF可以向第一SMF发送确认信息,并在该确认消息中携带第二UPF对应的隧道信息,可以使第一SMF基于第二UPF对应的隧道信息,向第一UPF配置第一路由规则。
因此,可以向第一SMF发送确认信息,确认信息包括第二UPF对应的隧道信息,以使第一SMF配置第一路由规则,进而用户设备发送的上行数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
本公开实施例提供的迁移边缘应用服务器的方法,通过接收第二指示信息,第二SMF可以获知需要将源EAS向第二PLMN的目标EAS迁移,进而第二SMF可以向第二UPF配置第二路由规则,进而可以向第一SMF发送确认信息,以使第一SMF配置第一路由规则,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS向第二PLMN的目标EAS迁移,可以保证服务连续性。
图3是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之三,如图3所示,本公开实施例提供一种迁移边缘应用服务器的方法,其执行主体可以为第一PLMN的AF。该方法包括:
步骤301,获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN的AF可以获取第一指示信息,该第一指示信息可以用于指示将源EAS向第二PLMN的目标EAS迁移,可以使接收到该第一指示信息的功能实体确定需要将源EAS向第二PLMN的目标EAS迁移。
可以理解的是,上述AF可以是第一PLMN中的网元。
可选地,当发生EAS relocation(例如,由于源EAS负载、维护等问题,由AF内部触发),AF可以确定源EAS不可用需要迁移到部署在其他PLMN的EAS,AF可以根据UE的签约,federated OP协议(例如,不同OP之间有federation agreement),备选EAS当前是否可用(例如,通过应用层交互获得信息)等信息确定目标EAS,进而可以获取第一指示信息。
步骤302,发送所述第一指示信息。
具体地,在获取第一指示信息之后,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,AF可以发送该第一指示信息。
可选地,在获取第一指示信息之后,第一PLMN的AF可以通过一个或多个功能实体,将该第一指示信息发送至第一SMF。
可以理解的是,第一PLMN的AF发送第一指示信息之后,第一SMF可以接收到第一指示信息,进而第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以进行路由配置,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS。
本公开实施例提供的迁移边缘应用服务器的方法,通过AF获取第一指示信息以及发送该第一指示信息,可以使第一SMF确定需要将源EAS向第 二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN的AF可以获取第一指示信息,该第一指示信息可以包括一种或多种信息,该第一指示信息可以用于指示将源EAS向第二PLMN的目标EAS迁移,可以使接收到该第一指示信息的功能实体确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一PLMN的AF可以获取第一指示信息,该第一指示信息可以包括第一信息,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,AF可以发送该第一指示信息。
可选地,第一PLMN的AF可以获取第一指示信息,该第一指示信息可以包括第二信息,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,AF可以发送该第一指示信息。
可选地,第一PLMN的AF可以获取第一指示信息,该第一指示信息可以包括第一信息和第二信息,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,AF可以发送该第一指示信息。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是inter-PLMN迁移指示,用于指示将源EAS迁移至其他PLMN的EAS。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是第二PLMN的ID,用于指示将源EAS迁移至该ID对应的PLMN的EAS。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是EAS IP Replacement信息,该EAS IP Replacement信息可以包括目标EAS的IP地址,端口号等。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是目标 EAS的信息,该目标EAS的信息可以包括目标EAS的IP地址。
因此,通过AF获取包括一种或多种信息的第一指示信息以及发送该第一指示信息,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述发送所述第一指示信息,包括:
向所述第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
具体地,在获取第一指示信息之后,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,AF可以向第一PLMN的NEF或第一PLMN的PCF发送第一指示信息。
因此,通过AF获取包括第一指示信息以及向NEF或PCF发送该第一指示信息,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,向所述第一PLMN的第一SMF发送所述第二信息。
具体地,在获取第一指示信息之后,为了使第一PLMN的第一SMF接收到第一指示信息,在第一指示信息包括第二信息的情况下,AF可以向第一PLMN的第一SMF发送第二信息。
因此,通过AF获取包括第一指示信息以及发送该第一指示信息,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
具体地,在获取第一指示信息之后,在第一指示信息包括第二信息的情况下,可以通过应用层向UE发送第二信息,可以使UE获知需要将源EAS向第二PLMN的目标EAS迁移。
可选地,向UE发送的第二信息可以包括:EAS IP更换信息或目标EAS的信息。
因此,通过应用层向UE发送第二信息,可以使UE获知需要将源EAS向第二PLMN的目标EAS迁移。
本公开实施例提供的迁移边缘应用服务器的方法,通过AF获取第一指示信息以及发送该第一指示信息,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
图4是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之四,如图4所示,本公开实施例提供一种迁移边缘应用服务器的方法,其执行主体可以为第一PLMN的PCF。该方法包括:
步骤401,接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN的PCF可以接收第一指示信息,基于接收到的第一指示信息,第一PLMN的PCF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可以理解的是,上述PCF可以是第一PLMN中的网元。
可选地,第一PLMN的PCF可以通过一个或多个功能实体接收第一指示信息。
步骤402,基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
具体地,在接收到第一指示信息之后,为了使第一PLMN的第一SMF获知需要将源EAS向第二PLMN的目标EAS迁移,第一PLMN的PCF可以将第一指示信息携带在PCC规则中并将PCC规则发送给第一SMF。
可以理解的是,第一PLMN的PCF发送第一指示信息之后,第一SMF可以接收到第一指示信息,进而第一SMF可以确定需要将源EAS向第二PLMN的目标EAS迁移,进而第一SMF可以进行路由配置,进而用户设备发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS。
本公开实施例提供的迁移边缘应用服务器的方法,通过第一PLMN的PCF接收第一指示信息以及将第一指示信息携带在PCC规则中发送给第一SMF,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述接收第一指示信息,包括:
接收所述第一PLMN的AF发送的所述第一指示信息;或者
接收所述第一PLMN的NEF发送的所述第一指示信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN的PCF可以接收AF发送的第一指示信息或接收NEF发送的第一指示信息,基于接收到的第一指示信息,第一PLMN的PCF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
因此,PCF可以接收AF或NEF发送的第一指示信息,进而可以将第一指示信息携带在PCC规则中发送给第一SMF,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,在所述向所述第一PLMN的第一SMF发送携带有所述第一指 示信息的PCC规则之前,所述方法还包括:
在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访PLMN,所述第二PLMN为目标EAS所在PLMN;
基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
具体地,在接收到第一指示信息之后,在第二PLMN为拜访PLMN的情况下,若确定UE可授权接入拜访PLMN,则可以基于第一指示信息,生成携带有第一指示信息的PCC规则,进而可以向第一SMF发送该PCC规则。
因此,在第二PLMN为拜访PLMN的情况下,若确定UE可授权接入拜访PLMN,则可以生成携带有第一指示信息的PCC规则,进而可以将PCC规则发送给第一SMF,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
具体地,为了将源EAS迁移至第二PLMN的目标EAS,第一PLMN的PCF可以接收第一指示信息,该第一指示信息可以包括一种或多种信息,基于接收到的第一指示信息,第一PLMN的PCF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一PLMN的PCF可以接收第一指示信息,该第一指示信息可以包括第一信息,基于接收到的第一指示信息,第一PLMN的PCF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一PLMN的PCF可以接收第一指示信息,该第一指示信息可以包括第二信息,基于接收到的第一指示信息,第一PLMN的PCF可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,第一PLMN的PCF可以接收第一指示信息,该第一指示信息可以包括第一信息和第二信息,基于第一信息和第二信息,第一PLMN的PCF 可以确定需要将源EAS向第二PLMN的目标EAS迁移。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是inter-PLMN迁移指示,用于指示将源EAS迁移至其他PLMN的EAS。
可选地,在第一指示信息包括第一信息的情况下,第一信息可以是第二PLMN的ID,用于指示将源EAS迁移至该ID对应的PLMN的EAS。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是EAS IP Replacement信息,该EAS IP Replacement信息可以包括目标EAS的IP地址,端口号等。
可选地,在第一指示信息包括第二信息的情况下,第二信息可以是目标EAS的信息,该目标EAS的信息可以包括目标EAS的IP地址。
因此,第一PLMN的PCF可以接收包括一种或多种信息的第一指示信息以及将第一指示信息携带在PCC规则中发送给第一SMF,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
本公开实施例提供的迁移边缘应用服务器的方法,通过第一PLMN的PCF接收第一指示信息以及将第一指示信息携带在PCC规则中发送给第一SMF,可以使第一SMF确定需要将源EAS向第二PLMN的目标EAS迁移以及进行路由配置,进而上行数据可以被转发至第二PLMN中的第二UPF,通过第二UPF上行数据可以路由至目标EAS,可以实现将源EAS迁移至第二PLMN的目标EAS,可以保证服务连续性。
可选地,图5是本公开实施例提供的迁移边缘应用服务器的方法的应用场景示意图,本公开实施例提供的迁移边缘应用服务器的方法可以应用于如图5所示的场景。如图5所示,在PLMN1(PLMN1可以是归属PLMN(HPLMN))中,OP1提供EHE1(边缘宿主环境),EHE1包含OP1部署的EAS1和OP2部署的EAS4。而在PLMN2(PLMN2可以是拜访PLMN(VPLMN))中,OP2提供EHE2,EHE2包含OP1部署的EAS2和OP2部署的EAS3。当UE漫游 到PLMN2时,能通过OP2获取OP1提供的业务。
如图5所示,HPLMN可以包括接入网(Access Network,AN)实体/无线接入网(Radio Access Network,RAN)实体、接入与移动性管理功能(AMF)实体、会话管理功能(H-SMF)实体、用户面功能(H-UPF)实体、策略控制功能(H-PCF)实体和应用功能(AF)实体等。HPLMN中的H-SMF可以插入UL CL/BP H-UPF,HPLMN中的H-SMF也可以不插入UL CL/BP H-UPF。
如图5所示,VPLMN可以包括AN实体/RAN实体、接入与移动性管理功能(AMF)实体、会话管理功能(V-SMF)实体、用户面功能(V-UPF)实体、策略控制功能(V-PCF)实体和应用功能(AF)实体等。VPLMN中的V-SMF可以插入UL CL/BP V-UPF,VPLMN中的V-SMF也可以不插入UL CL/BP V-UPF。
可选地,图6是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之五,目标EAS可以部署于图5中的PLMN1(HPLMN),V-SMF可以插入UL CL/BP V-UPF并配置路由规则(routing rule)将数据转发至目标EAS,如图6所示,本公开实施例提供的迁移边缘应用服务器的方法可以包括:步骤600至步骤607,其中:
步骤600,建立LBO PDU会话;
具体地,UE当前漫游到PLMN2(VPLMN),UE建立LBO PDU会话接入PLMN2中由OP1部署的EAS2,以使用边缘服务。
步骤601,AF获取第一指示信息,以及发送第一指示信息;
可选地,当发生EAS relocation(例如,由于EAS负载、维护等问题,由AF内部触发),AF(也即VPLMN中的AF(V-AF))可以确定EAS2不可用需要迁移到部署在PLMN1的EAS(例如,OP1部署的EAS1),AF可以根据UE的签约,federated OP协议(例如,不同OP之间有federation agreement),备选EAS当前是否可用(例如,通过应用层交互获得信息)等信息确定目标EAS。
可选地,AF可以通过调用Nnef_TrafficInfluence_Create或Nnef_TrafficInfluence_Update服务操作将第一指示信息发送给NEF,或者可 以通过调用Npcf_PolicyAuthorization_Create或Npcf_PolicyAuthorization_Update将第一指示信息发送给PCF,所发送的第一指示信息可以包括以下信息中的一种或多种信息:
第一信息:inter-PLMN relocation(用于指示EAS relocation到不同PLMN)和/或PLMN ID(目标EAS所在的PLMN的标识);或
第二信息:EAS IP replacement信息或目标EAS的信息。
可选地,如果5GC支持EAS IP replacement,则AF可以将EAS IP Replacement信息(例如,目标EAS IP地址,端口号等)发送给网络。
可选地,AF可以将目标EAS的信息(如:目标EAS IP地址)发送给网络,以及通过应用层将目标EAS信息发送给UE。
步骤602,V-SMF接收第一指示信息;
可选地,V-PCF可以从NEF或AF接收第一指示信息,进而V-PCF可以生成包含第一指示信息的PCC规则。V-PCF可以通过调用Npcf_SMPolicyControl_UpdateNotify将第一指示信息发送给V-SMF,其中,第一指示信息可以包括第一信息,第一信息可以包括inter-PLMN relocation或PLMN ID。
步骤603,V-SMF选择H-SMF;
可选地,V-SMF选择H-SMF的过程可以是V-SMF发现H-SMF的过程。
可选地,V-SMF可以通过两种方式发现H-SMF,其中第一种发现H-SMF的方式可以包括:如果V-SMF基于本地配置可以获取到HPLMN的EAS deployment information或者V-SMF通过向VPLMN的NEF订阅可以获取到HPLMN的EAS deployment information,则V-SMF可以根据EAS deployment information和第一指示信息中第二信息(例如,EAS IP replacement信息或目标EAS的信息),确定target DNAI,进而V-SMF可以通过调用Nsmf_PDUSession_SMContextStatusNotify将target DNAI发送给V-AMF。进而V-AMF可以根据target DNAI选择H-SMF。H-SMF可以发送Nsmf_PDUSession_Context Request到V-SMF。
可选地,V-SMF可以通过两种方式发现H-SMF,其中第二种发现H-SMF 的方式可以包括:V-SMF可以通过调用Nnrf_NFDiscovery_Request(包括归属PLMN的ID(home PLMN ID),拜访PLMN的ID(serving PLMN ID))向VPLMN中的NRF(vNRF)请求发现H-SMF,vNRF向HPLMN中的NRF(hNRF)查询,根据查询结果可以发现H-SMF。
步骤604,V-SMF插入或重新选择UL CL/BP V-UPF,以及发送第二指示信息至H-SMF;
可选地,V-SMF可以通过Nsmf_PDUSession_Update Request发送第二指示信息到H-SMF,其中,第二指示信息可以包括第一信息和第二信息,第一信息可以是inter-PLMN relocation,第二信息可以是EAS IP replacement信息或目标EAS的信息。
步骤605,H-SMF选择H-PSA UPF,以及配置routing rule;
可选地,H-SMF可以根据第二指示信息中的第二信息(例如,EAS IP replacement信息或目标EAS的信息),进行插入或重新选择H-PSA UPF。
可选地,在插入或重新选择H-PSA UPF之后,H-SMF可以向H-PSA UPF配置routing rule,routing rule用于将UE发送的目标地址为目标EAS地址的数据发送至目标EAS。
可选地,如果H-SMF接收到的第二信息是EAS IP更换信息(EAS IP replacement information),则H-SMF可以向H-PSA配置EAS IP replacement information。
步骤606,H-SMF向V-SMF回复确认信息;
可选地,H-SMF可以向V-SMF回复确认信息,确认信息中可以包括上行数据到H-PSA UPF的隧道信息(tunnel information)。
步骤607,V-SMF接收到H-SMF确认信息后,向UL CL/BP V-UPF配置routing rule。
可选地,V-SMF接收到H-SMF确认信息以后,可以向UL CL/BP V-UPF配置routing rule,将UE发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据转发至H-PSA UPF。
可选地,图7是本公开实施例提供的迁移边缘应用服务器的方法的流程 示意图之六,目标EAS可以部署于图5中的PLMN1(HPLMN),V-SMF可以不插入UL CL/BP V-UPF,可以通过向V-PSA UPF配置路由规则(routing rule)将数据转发至目标EAS,如图7所示,本公开实施例提供的迁移边缘应用服务器的方法可以包括:步骤700至步骤707,其中:
步骤700,建立LBO PDU会话;
具体地,UE当前漫游到PLMN2(VPLMN),UE建立LBO PDU会话接入PLMN2中由OP1部署的EAS2,以使用边缘服务。
步骤701,AF获取第一指示信息,以及发送第一指示信息;
可选地,当发生EAS relocation(例如,由于EAS负载、维护等问题,由AF内部触发),AF(也即VPLMN中的AF(V-AF))可以确定EAS2不可用需要迁移到部署在PLMN1的EAS(例如,OP1部署的EAS1),AF可以根据UE的签约,federated OP协议(例如,不同OP之间有federation agreement),备选EAS当前是否可用(例如,通过应用层交互获得信息)等信息确定目标EAS。
可选地,AF可以通过调用Nnef_TrafficInfluence_Create或Nnef_TrafficInfluence_Update服务操作将第一指示信息发送给NEF,或者可以通过调用Npcf_PolicyAuthorization_Create或Npcf_PolicyAuthorization_Update将第一指示信息发送给PCF,所发送的第一指示信息可以包括以下信息中的一种或多种信息:
第一信息:inter-PLMN relocation(用于指示EAS relocation到不同PLMN)和/或PLMN ID(目标EAS所在的PLMN的标识);或
第二信息:EAS IP replacement信息或目标EAS的信息。
可选地,如果5GC支持EAS IP replacement,则AF可以将EAS IP Replacement信息(例如,目标EAS IP地址,端口号等)发送给网络。
可选地,AF可以将目标EAS的信息(如:目标EAS IP地址)发送给网络,以及通过应用层将目标EAS信息发送给UE。
步骤702,V-SMF接收第一指示信息;
可选地,V-PCF可以从NEF或AF接收第一指示信息,进而V-PCF可以 生成包含第一指示信息的PCC规则。V-PCF可以通过调用Npcf_SMPolicyControl_UpdateNotify将第一指示信息发送给V-SMF,其中,第一指示信息可以包括第一信息,第一信息可以包括inter-PLMN relocation或PLMN ID。
步骤703,V-SMF选择H-SMF;
可选地,V-SMF选择H-SMF的过程可以是V-SMF发现H-SMF的过程。
可选地,V-SMF可以通过两种方式发现H-SMF,其中第一种发现H-SMF的方式可以包括:如果V-SMF基于本地配置可以获取到HPLMN的EAS deployment information或者V-SMF通过向VPLMN的NEF订阅可以获取到HPLMN的EAS deployment information,则V-SMF可以根据EAS deployment information和第一指示信息中第二信息(例如,EAS IP replacement信息或目标EAS的信息),确定target DNAI,进而V-SMF可以通过调用Nsmf_PDUSession_SMContextStatusNotify将target DNAI发送给V-AMF。进而V-AMF可以根据target DNAI选择H-SMF。H-SMF可以发送Nsmf_PDUSession_Context Request到V-SMF。
可选地,V-SMF可以通过两种方式发现H-SMF,其中第二种发现H-SMF的方式可以包括:V-SMF可以通过调用Nnrf_NFDiscovery_Request(包括归属PLMN的ID(home PLMN ID),拜访PLMN的ID(serving PLMN ID))向VPLMN中的NRF(vNRF)请求发现H-SMF,vNRF向HPLMN中的NRF(hNRF)查询,根据查询结果可以发现H-SMF。
步骤704,V-SMF发送第二指示信息至H-SMF;
可选地,V-SMF可以通过Nsmf_PDUSession_Update Request发送第二指示信息到H-SMF,其中,第二指示信息可以包括第一信息和第二信息,第一信息可以是inter-PLMN relocation,第二信息可以是EAS IP replacement信息或目标EAS的信息。
步骤705,H-SMF选择H-PSA UPF,以及配置routing rule;
可选地,H-SMF可以根据第二指示信息中的第二信息(例如,EAS IP replacement信息或目标EAS的信息),进行插入或重新选择H-PSA UPF。
可选地,在插入或重新选择H-PSA UPF之后,H-SMF可以向H-PSA UPF配置routing rule,routing rule用于将UE发送的目标地址为目标EAS地址的数据发送至目标EAS。
可选地,如果H-SMF接收到的第二信息是EAS IP replacement information,则H-SMF可以向H-PSA配置EAS IP replacement information。
步骤706,H-SMF向V-SMF回复确认信息;
可选地,H-SMF可以向V-SMF回复确认信息,确认信息中可以包括上行数据到H-PSA UPF的隧道信息(tunnel information)。
步骤707,V-SMF接收到H-SMF确认信息后,向UL CL/BP V-UPF配置routing rule。
可选地,V-SMF接收到H-SMF确认信息以后,可以向V-PSA UPF配置routing rule,将UE发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据转发至H-PSA UPF。
可选地,图8是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之七,目标EAS可以部署于图5中的PLMN2(VPLMN),H-SMF可以插入UL CL/BP H-UPF并配置路由规则(routing rule)将数据转发至目标EAS,如图8所示,本公开实施例提供的迁移边缘应用服务器的方法可以包括:步骤800至步骤807,其中:
步骤800,建立PDU会话;
具体地,UE建立PDU会话接入PLMN1中由OP1部署的EAS1,以使用边缘服务。
步骤801,AF获取第一指示信息,以及发送第一指示信息;
可选地,当发生EAS relocation(例如,由于EAS负载、维护等问题,由AF内部触发),AF(也即HPLMN中的AF(H-AF))可以确定EAS1不可用需要迁移到部署在PLMN2的EAS(例如,OP1部署的EAS2),AF可以根据UE的签约,federated OP协议(例如,不同OP之间有federation agreement),备选EAS当前是否可用(例如,通过应用层交互获得信息)等信息确定目标EAS。
可选地,AF可以通过调用Nnef_TrafficInfluence_Create或Nnef_TrafficInfluence_Update服务操作将第一指示信息发送给NEF,或者可以通过调用Npcf_PolicyAuthorization_Create或Npcf_PolicyAuthorization_Update将第一指示信息发送给PCF,所发送的第一指示信息可以包括以下信息中的一种或多种信息:
第一信息:inter-PLMN relocation(用于指示EAS relocation到不同PLMN)和/或PLMN ID(目标EAS所在的PLMN的标识);或
第二信息:EAS IP replacement信息或目标EAS的信息。
可选地,如果5GC支持EAS IP replacement,则AF可以将EAS IP Replacement信息(例如,目标EAS IP地址,端口号等)发送给网络。
可选地,AF可以将目标EAS的信息(如:目标EAS IP地址)发送给网络,以及通过应用层将目标EAS信息发送给UE。
步骤802,H-SMF接收第一指示信息;
可选地,H-PCF可以从NEF或AF接收第一指示信息。
可选地,在接收到第一指示信息之后,H-PCF可以基于UE信息确定UE是否可授权接入VPLMN,如果确定UE可授权接入,则H-PCF可以生成包含第一指示信息的PCC规则。H-PCF可以通过调用Npcf_SMPolicyControl_UpdateNotify将第一指示信息发送给H-SMF,其中,第一指示信息可以包括第一信息,第一信息可以包括inter-PLMN relocation或PLMN ID。
步骤803,H-SMF选择V-SMF;
可选地,H-SMF选择V-SMF的过程可以是H-SMF发现V-SMF的过程。
可选地,H-SMF可以通过两种方式发现V-SMF,其中第一种发现V-SMF的方式可以包括:如果H-SMF基于本地配置可以获取到VPLMN的EAS deployment information或者H-SMF通过向HPLMN的NEF订阅可以获取到VPLMN的EAS deployment information,则H-SMF可以根据EAS deployment information和第一指示信息中第二信息(例如,EAS IP replacement信息或目标EAS的信息),确定target DNAI,进而H-SMF可以通过调用 Nsmf_PDUSession_SMContextStatusNotify将target DNAI发送给H-AMF。进而H-AMF可以根据target DNAI选择V-SMF。V-SMF可以发送Nsmf_PDUSession_Context Request到H-SMF。
可选地,H-SMF可以通过两种方式发现V-SMF,其中第二种发现V-SMF的方式可以包括:H-SMF可以通过调用Nnrf_NFDiscovery_Request(包括归属PLMN的ID(home PLMN ID),拜访PLMN的ID(serving PLMN ID))向HPLMN中的NRF(hNRF)请求发现V-SMF,hNRF向VPLMN中的NRF(vNRF)查询,根据查询结果可以发现V-SMF。
步骤804,H-SMF插入或重新选择UL CL/BP H-UPF,以及发送第二指示信息至V-SMF;
可选地,H-SMF可以通过Nsmf_PDUSession_Update Request发送第二指示信息到V-SMF,其中,第二指示信息可以包括第一信息和第二信息,第一信息可以是inter-PLMN relocation,第二信息可以是EAS IP replacement信息或目标EAS的信息。
可选地,在发送第二指示信息之前,H-SMF可以向HPLMN中的UDM(H-UDM)请求是否UE可授权接入VPLMN。
步骤805,V-SMF选择V-PSA UPF,以及配置routing rule;
可选地,V-SMF可以根据第二指示信息中的第二信息(例如,EAS IP replacement信息或目标EAS的信息),进行插入或重新选择V-PSA UPF。
可选地,在插入或重新选择V-PSA UPF之后,V-SMF可以向V-PSA UPF配置routing rule,routing rule用于将UE发送的目标地址为目标EAS地址的数据发送至目标EAS。
可选地,如果V-SMF接收到的第二信息是EAS IP replacement information,则V-SMF可以向V-PSA配置EAS IP replacement information。
步骤806,V-SMF向H-SMF回复确认信息;
可选地,V-SMF可以向H-SMF回复确认信息,确认信息中可以包括上行数据到V-PSA UPF的隧道信息(tunnel information)。
步骤807,H-SMF接收到V-SMF确认信息后,向UL CL/BP H-UPF配 置routing rule。
可选地,H-SMF接收到V-SMF确认信息以后,可以向UL CL/BP H-UPF配置routing rule,将UE发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据转发至V-PSA UPF。
可选地,图9是本公开实施例提供的迁移边缘应用服务器的方法的流程示意图之八,目标EAS可以部署于图5中的PLMN2(VPLMN),H-SMF可以不插入UL CL/BP H-UPF,可以通过向H-PSA UPF配置路由规则(routing rule)将数据转发至目标EAS,如图9所示,本公开实施例提供的迁移边缘应用服务器的方法可以包括:步骤900至步骤907,其中:
步骤900,建立PDU会话;
具体地,UE建立PDU会话接入PLMN1中由OP1部署的EAS1,以使用边缘服务。
步骤901,AF获取第一指示信息,以及发送第一指示信息;
可选地,当发生EAS relocation(例如,由于EAS负载、维护等问题,由AF内部触发),AF(也即HPLMN中的AF(H-AF))可以确定EAS1不可用需要迁移到部署在PLMN2的EAS(例如,OP1部署的EAS2),AF可以根据UE的签约,federated OP协议(例如,不同OP之间有federation agreement),备选EAS当前是否可用(例如,通过应用层交互获得信息)等信息确定目标EAS。
可选地,AF可以通过调用Nnef_TrafficInfluence_Create或Nnef_TrafficInfluence_Update服务操作将第一指示信息发送给NEF,或者可以通过调用Npcf_PolicyAuthorization_Create或Npcf_PolicyAuthorization_Update将第一指示信息发送给PCF,所发送的第一指示信息可以包括以下信息中的一种或多种信息:
第一信息:inter-PLMN relocation(用于指示EAS relocation到不同PLMN)和/或PLMN ID(目标EAS所在的PLMN的标识);或
第二信息:EAS IP replacement信息或目标EAS的信息。
可选地,如果5GC支持EAS IP replacement,则AF可以将EAS IP  Replacement信息(例如,目标EAS IP地址,端口号等)发送给网络。
可选地,AF可以将目标EAS的信息(如:目标EAS IP地址)发送给网络,以及通过应用层将目标EAS信息发送给UE。
步骤902,H-SMF接收第一指示信息;
可选地,H-PCF可以从NEF或AF接收第一指示信息。
可选地,在接收到第一指示信息之后,H-PCF可以基于UE信息确定UE是否可授权接入VPLMN,如果确定UE可授权接入,则H-PCF可以生成包含第一指示信息的PCC规则。H-PCF可以通过调用Npcf_SMPolicyControl_UpdateNotify将第一指示信息发送给H-SMF,其中,第一指示信息可以包括第一信息,第一信息可以包括inter-PLMN relocation或PLMN ID。
步骤903,H-SMF选择V-SMF;
可选地,H-SMF选择V-SMF的过程可以是H-SMF发现V-SMF的过程。
可选地,H-SMF可以通过两种方式发现V-SMF,其中第一种发现V-SMF的方式可以包括:如果H-SMF基于本地配置可以获取到VPLMN的EAS deployment information或者H-SMF通过向HPLMN的NEF订阅可以获取到VPLMN的EAS deployment information,则H-SMF可以根据EAS deployment information和第一指示信息中第二信息(例如,EAS IP replacement信息或目标EAS的信息),确定target DNAI,进而H-SMF可以通过调用Nsmf_PDUSession_SMContextStatusNotify将target DNAI发送给H-AMF。进而H-AMF可以根据target DNAI选择V-SMF。V-SMF可以发送Nsmf_PDUSession_Context Request到H-SMF。
可选地,H-SMF可以通过两种方式发现V-SMF,其中第二种发现V-SMF的方式可以包括:H-SMF可以通过调用Nnrf_NFDiscovery_Request(包括归属PLMN的ID(home PLMN ID),拜访PLMN的ID(serving PLMN ID))向HPLMN中的NRF(hNRF)请求发现V-SMF,hNRF向VPLMN中的NRF(vNRF)查询,根据查询结果可以发现V-SMF。
步骤904,H-SMF发送第二指示信息至V-SMF;
可选地,H-SMF可以通过Nsmf_PDUSession_Update Request发送第二指示信息到V-SMF,其中,第二指示信息可以包括第一信息和第二信息,第一信息可以是inter-PLMN relocation,第二信息可以是EAS IP replacement信息或目标EAS的信息。
可选地,在发送第二指示信息之前,H-SMF可以向HPLMN中的UDM(H-UDM)请求是否UE可授权接入VPLMN。
步骤905,V-SMF选择V-PSA UPF,以及配置routing rule;
可选地,V-SMF可以根据第二指示信息中的第二信息(例如,EAS IP replacement信息或目标EAS的信息),进行插入或重新选择V-PSA UPF。
可选地,在插入或重新选择V-PSA UPF之后,V-SMF可以向V-PSA UPF配置routing rule,routing rule用于将UE发送的目标地址为目标EAS地址的数据发送至目标EAS。
可选地,如果V-SMF接收到的第二信息是EAS IP replacement information,则V-SMF可以向V-PSA配置EAS IP replacement information。
步骤906,V-SMF向H-SMF回复确认信息;
可选地,V-SMF可以向H-SMF回复确认信息,确认信息中可以包括上行数据到V-PSA UPF的隧道信息(tunnel information)。
步骤907,H-SMF接收到V-SMF确认信息后,向H-PSA UPF配置routing rule。
可选地,H-SMF接收到V-SMF确认信息以后,可以向H-PSA UPF配置routing rule,将UE发送的目标地址为源EAS地址或目标地址为目标EAS地址的数据转发至V-PSA UPF。
图10是本公开实施例提供的第一SMF的结构示意图,如图10所示,所述网络侧设备包括存储器1020,收发机1000,处理器1010,其中:
存储器1020,用于存储计算机程序;收发机1000,用于在所述处理器1010的控制下收发数据;处理器1010,用于读取所述存储器1020中的计算机程序并执行以下操作:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS 向第二PLMN的目标EAS迁移;
向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
接收所述第二SMF发送的确认信息后,向第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
具体地,收发机1000,用于在处理器1010的控制下接收和发送数据。
其中,在图10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1010代表的一个或多个处理器和存储器1020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1000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,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1010负责管理总线架构和通常的处理,存储器1020可以存储处理器1010在执行操作时所使用的数据。
处理器1010可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
可选地,所述向所述第二PLMN中的第二SMF发送第二指示信息,包括:
基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
向所述第二SMF发送所述第二指示信息。
可选地,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
可选地,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
在所述第一UPF为支持UL CL/BP的UPF的情况下,基于所述第二SMF 发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则;或者
在所述第一UPF为支持PSA的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持PSA的UPF配置所述第一路由规则。
可选地,在所述基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则之前,所述操作还包括:
插入或重新选择支持UL CL/BP的UPF。
可选地,在所述第一UPF为支持PSA的UPF的情况下,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
基于所述第二SMF发送的确认信息,向所述支持PSA的UPF配置所述第一路由规则。
可选地,所述第二SMF发送的确认信息包括所述第二UPF对应的隧道信息,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
基于所述第二UPF对应的隧道信息,向所述第一UPF配置所述第一路由规则。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,所述接收第一指示信息,包括:
接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
可选地,在所述指示信息包括所述第二信息的情况下,所述接收指示信息,包括:
接收所述第一PLMN的AF发送的所述第二信息。
可选地,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述操作还包括:
基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求 消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
可选地,在所述基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI之前,所述操作还包括:
基于所述第一SMF的本地配置,获取所述第二PLMN的EAS部署信息;或者
通过向所述第一PLMN的NEF进行订阅的方式,获取所述第二PLMN的EAS部署信息。
可选地,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述操作还包括:
向所述第一PLMN的第一NRF发送第二请求消息,所述第二请求消息用于请求所述第一NRF查询所述第二PLMN中的SMF;
接收所述第一NRF发送的查询信息之后,确定所述第二SMF。
可选地,所述第二PLMN为拜访PLMN或归属PLMN。
可选地,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述操作还包括:
在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
可选地,所述第二PLMN为一个或多个第三PLMN中的任意一个,所述第三PLMN与所述第一PLMN不为同一个,所述第三PLMN包括一个或多个备选EAS。
在此需要说明的是,本公开实施例提供的上述第一SMF,能够实现上述执行主体为第一SMF的方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图11是本公开实施例提供的第二SMF的结构示意图,如图11所示,所述网络侧设备包括存储器1120,收发机1100,处理器1110,其中:
存储器1120,用于存储计算机程序;收发机1100,用于在所述处理器1110的控制下收发数据;处理器1110,用于读取所述存储器1120中的计算机程序并执行以下操作:
接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
向所述第一SMF发送确认信息。
具体地,收发机1100,用于在处理器1110的控制下接收和发送数据。
其中,在图11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1110代表的一个或多个处理器和存储器1120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1100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,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1110负责管理总线架构和通常的处理,存储器1120可以存储处理器1110在执行操作时所使用的数据。
处理器1110可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
可选地,所述第二指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述操作还包括:
基于所述第二信息,插入或重新选择第二UPF。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述操作还包括:
在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述操作还包括:
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
可选地,所述确认信息包括所述第二UPF对应的隧道信息。
在此需要说明的是,本公开实施例提供的上述第二SMF,能够实现上述执行主体为第二SMF的方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图12是本公开实施例提供的AF的结构示意图,如图12所示,所述网络侧设备包括存储器1220,收发机1200,处理器1210,其中:
存储器1220,用于存储计算机程序;收发机1200,用于在所述处理器1210的控制下收发数据;处理器1210,用于读取所述存储器1220中的计算机程序并执行以下操作:
获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
发送所述第一指示信息。
具体地,收发机1200,用于在处理器1210的控制下接收和发送数据。
其中,在图12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1210代表的一个或多个处理器和存储器1220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1200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,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1210负责管理总线架构和通常的处理,存储器1220可以存储处理器1210在执行操作时所使用的数据。
处理器1210可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,所述发送所述第一指示信息,包括:
向第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
可选地,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,向第一PLMN的第一SMF发送所述第二信息。
可选地,所述发送所述第一指示信息,包括:
在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
在此需要说明的是,本公开实施例提供的上述AF,能够实现上述执行主体为AF的方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图13是本公开实施例提供的PCF的结构示意图,如图13所示,所述网络侧设备包括存储器1320,收发机1300,处理器1310,其中:
存储器1320,用于存储计算机程序;收发机1300,用于在所述处理器 1310的控制下收发数据;处理器1310,用于读取所述存储器1320中的计算机程序并执行以下操作:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第一指示信息,向第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
具体地,收发机1300,用于在处理器1310的控制下接收和发送数据。
其中,在图13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1310代表的一个或多个处理器和存储器1320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1300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,这些传输介质包括无线信道、有线信道、光缆等传输介质。处理器1310负责管理总线架构和通常的处理,存储器1320可以存储处理器1310在执行操作时所使用的数据。
处理器1310可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD),处理器也可以采用多核架构。
可选地,所述接收第一指示信息,包括:
接收所述第一PLMN的AF发送的所述第一指示信息;或者
接收所述第一PLMN的NEF发送的所述第一指示信息。
可选地,在所述向第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述操作还包括:
在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访PLMN,所述第二PLMN为目标EAS所在PLMN;
基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
在此需要说明的是,本公开实施例提供的上述PCF,能够实现上述执行主体为PCF的方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图14是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之一,如图14所示,所述装置应用于第一SMF,包括:第一接收单元1401,第一发送单元1402和第一配置单元1403,其中:
第一接收单元1401,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第一发送单元1402,用于向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
第一配置单元1403,接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
可选地,所述第一发送单元具体用于:
基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
向所述第二SMF发送所述第二指示信息。
可选地,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
可选地,所述第一配置单元具体用于:
在所述第一UPF为支持UL CL/BP的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则;或者
在所述第一UPF为支持PSA的UPF的情况下,基于所述第二SMF发送的确认信息,向所述支持PSA的UPF配置所述第一路由规则。
可选地,所述装置还包括第一选择单元,所述第一选择单元用于:
在所述基于所述第二SMF发送的确认信息,向所述支持UL CL/BP的UPF配置所述第一路由规则之前,插入或重新选择支持UL CL/BP的UPF。
可选地,所述第二SMF发送的确认信息包括所述第二UPF对应的隧道信息,所述第一配置单元具体用于:
基于所述第二UPF对应的隧道信息,向所述第一UPF配置所述第一路由规则。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,所述第一接收单元具体用于:
接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
可选地,所述第一接收单元具体用于:
在所述第一指示信息包括所述第二信息的情况下,接收所述第一PLMN的AF发送的所述第二信息。
可选地,所述装置还包括第一确定单元,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述第一确定单元用于:
基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
可选地,所述装置还包括第一获取单元,在所述基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI之前,所述第一获取单元用于:
基于所述第一SMF的本地配置,获取所述第二PLMN的EAS部署信息;或者
通过向所述第一PLMN的NEF进行订阅的方式,获取所述第二PLMN 的EAS部署信息。
可选地,所述装置还包括第二确定单元,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述第二确定单元用于:
向所述第一PLMN的第一NRF发送第二请求消息,所述第二请求消息用于请求所述第一NRF查询所述第二PLMN中的SMF;
接收所述第一NRF发送的查询信息之后,确定所述第二SMF。
可选地,所述第二PLMN为拜访PLMN或归属PLMN。
可选地,所述装置还包括第三确定单元,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述第三确定单元用于:
在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
可选地,所述第二PLMN为一个或多个第三PLMN中的任意一个,所述第三PLMN与所述第一PLMN不为同一个,所述第三PLMN包括一个或多个备选EAS。
图15是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之二,如图15所示,所述装置应用于第二SMF,包括:第二接收单元1501,第二配置单元1502和第二发送单元1503,其中:
第二接收单元1501,用于接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第二配置单元1502,用于基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
第二发送单元1503,用于向所述第一SMF发送确认信息。
可选地,所述第二指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,所述装置还包括第二选择单元,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述第二选择单元用于:
基于所述第二信息,插入或重新选择第二UPF。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述第二配置单元还用于:
在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
可选地,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述第二配置单元还用于:
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
可选地,所述确认信息包括所述第二UPF对应的隧道信息。
图16是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之三,如图16所示,所述装置应用于AF,包括:第二获取单元1601和第三发送单元1602,其中:
第二获取单元1601,用于获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第三发送单元1602,用于发送所述第一指示信息。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
可选地,所述第三发送单元具体用于:
向所述第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
可选地,所述第三发送单元具体用于:
在所述第一指示信息包括所述第二信息的情况下,向所述第一PLMN的第一SMF发送所述第二信息。
可选地,所述第三发送单元具体用于:
在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
图17是本公开实施例提供的迁移边缘应用服务器的装置的结构示意图之四,如图17所示,所述装置应用于PCF,包括:第三接收单元1701和第四发送单元1702,其中:
第三接收单元1701,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
第四发送单元1702,用于基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
可选地,所述第三接收单元具体用于:
接收所述第一PLMN的AF发送的所述第一指示信息;或者
接收所述第一PLMN的NEF发送的所述第一指示信息。
可选地,所述装置还包括生成单元,在所述向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述生成单元具体用于:
在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访PLMN,所述第二PLMN为目标EAS所在PLMN;
基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
可选地,所述第一指示信息包括以下信息中的一种或多种信息:
第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
第二信息:EAS IP更换信息或所述目标EAS的信息。
需要说明的是,本公开实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个处理器可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是,本发明实施例提供的上述装置,能够实现上述方法实施例所实现的所有方法步骤,且能够达到相同的技术效果,在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面,本公开实施例还提供一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行上述各实施例提供的方法,例如包括:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF;
或例如包括:
接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
向所述第一SMF发送确认信息。
或例如包括:
获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
发送所述第一指示信息。
或例如包括:
接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备,包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
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。应理解可由计算机可执行指令实现流程图和/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。可提供这些计算机可执行指令到通用计算机、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。
这些处理器可执行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处理器可读存储器中,使得存储在该处理器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。
这些处理器可执行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 (76)

  1. 一种迁移边缘应用服务器的方法,应用于第一SMF,包括:
    接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
    接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二
    PLMN中的第二UPF。
  2. 根据权利要求1所述的迁移边缘应用服务器的方法,其中,所述向所述第二PLMN中的第二SMF发送第二指示信息,包括:
    基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
    向所述第二SMF发送所述第二指示信息。
  3. 根据权利要求1所述的迁移边缘应用服务器的方法,其中,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
  4. 根据权利要求3所述的迁移边缘应用服务器的方法,其中,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
    基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则。
  5. 根据权利要求4所述的迁移边缘应用服务器的方法,其中,在所述基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则之前,所述方法还包括:
    插入或重新选择支持UL CL/BP的UPF。
  6. 根据权利要求1所述的迁移边缘应用服务器的方法,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  7. 根据权利要求1或6所述的迁移边缘应用服务器的方法,其中,所述接收第一指示信息,包括:
    接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
  8. 根据权利要求6所述的迁移边缘应用服务器的方法,其中,在所述第一指示信息包括所述第二信息的情况下,所述接收第一指示信息,包括:
    接收所述第一PLMN的AF发送的所述第二信息。
  9. 根据权利要求6所述的迁移边缘应用服务器的方法,其中,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
    基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
    向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
    接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
  10. 根据权利要求1所述的迁移边缘应用服务器的方法,其中,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述方法还包括:
    在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
    接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
  11. 一种迁移边缘应用服务器的方法,应用于第二SMF,包括:
    接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
    向所述第一SMF发送确认信息。
  12. 根据权利要求11所述的迁移边缘应用服务器的方法,其中,所述第二指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  13. 根据权利要求12所述的迁移边缘应用服务器的方法,其中,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述方法还包括:
    基于所述第二信息,插入或重新选择第二UPF。
  14. 根据权利要求12所述的迁移边缘应用服务器的方法,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
    在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
  15. 根据权利要求11-14任一项所述的迁移边缘应用服务器的方法,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述方法还包括:
    基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
  16. 根据权利要求11-14任一项所述的迁移边缘应用服务器的方法,其中,所述确认信息包括所述第二UPF对应的隧道信息。
  17. 一种迁移边缘应用服务器的方法,应用于AF,包括:
    获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    发送所述第一指示信息。
  18. 根据权利要求17所述的迁移边缘应用服务器的方法,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  19. 根据权利要求17或18所述的迁移边缘应用服务器的方法,其中, 所述发送所述第一指示信息,包括:
    向所述第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
  20. 根据权利要求18所述的迁移边缘应用服务器的方法,其中,所述发送所述第一指示信息,包括:
    在所述第一指示信息包括所述第二信息的情况下,向所述第一PLMN的第一SMF发送所述第二信息。
  21. 根据权利要求18所述的迁移边缘应用服务器的方法,其中,所述发送所述第一指示信息,包括:
    在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
  22. 一种迁移边缘应用服务器的方法,应用于PCF,包括:
    接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
  23. 根据权利要求22所述的迁移边缘应用服务器的方法,其中,所述接收第一指示信息,包括:
    接收所述第一PLMN的AF发送的所述第一指示信息;或者
    接收所述第一PLMN的NEF发送的所述第一指示信息。
  24. 根据权利要求22所述的迁移边缘应用服务器的方法,其中,在所述向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述方法还包括:
    在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访PLMN,所述第二PLMN为目标EAS所在PLMN;
    基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
  25. 根据权利要求22-24任一项所述的迁移边缘应用服务器的方法,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  26. 一种第一SMF,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
    接收所述第二SMF发送的确认信息后,向第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
  27. 根据权利要求26所述的第一SMF,其中,所述向所述第二PLMN中的第二SMF发送第二指示信息,包括:
    基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
    向所述第二SMF发送所述第二指示信息。
  28. 根据权利要求26所述的第一SMF,其中,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
  29. 根据权利要求28所述的第一SMF,其中,所述向所述第一PLMN中的第一UPF配置第一路由规则,包括:
    基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则。
  30. 根据权利要求29所述的第一SMF,其中,在所述基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则之前,所述操作还包括:
    插入或重新选择支持UL CL/BP的UPF。
  31. 根据权利要求26所述的第一SMF,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  32. 根据权利要求26或31所述的第一SMF,其中,所述接收第一指示信息,包括:
    接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
  33. 根据权利要求31所述的第一SMF,其中,在所述第一指示信息包括所述第二信息的情况下,所述接收第一指示信息,包括:
    接收所述第一PLMN的AF发送的所述第二信息。
  34. 根据权利要求31所述的第一SMF,其中,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述操作还包括:
    基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
    向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
    接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
  35. 根据权利要求26所述的第一SMF,其中,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述操作还包括:
    在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
    接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接入所述第二PLMN。
  36. 一种第二SMF,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
    向所述第一SMF发送确认信息。
  37. 根据权利要求36所述的第二SMF,其中,所述第二指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  38. 根据权利要求37所述的第二SMF,其中,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述操作还包括:
    基于所述第二信息,插入或重新选择第二UPF。
  39. 根据权利要求37所述的第二SMF,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述操作还包括:
    在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
  40. 根据权利要求36-39任一项所述的第二SMF,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述操作还包括:
    基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
  41. 根据权利要求36-39任一项所述的第二SMF,其中,所述确认信息包括所述第二UPF对应的隧道信息。
  42. 一种AF,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    发送所述第一指示信息。
  43. 根据权利要求42所述的AF,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  44. 根据权利要求42或43所述的AF,其中,所述发送所述第一指示信息,包括:
    向第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
  45. 根据权利要求43所述的AF,其中,所述发送所述第一指示信息,包括:
    在所述第一指示信息包括所述第二信息的情况下,向第一PLMN的第一SMF发送所述第二信息。
  46. 根据权利要求43所述的AF,其中,所述发送所述第一指示信息,包括:
    在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
  47. 一种PCF,包括存储器,收发机,处理器:
    存储器,用于存储计算机程序;收发机,用于在所述处理器的控制下收发数据;处理器,用于读取所述存储器中的计算机程序并执行以下操作:
    接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    基于所述第一指示信息,向第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
  48. 根据权利要求47所述的PCF,其中,所述接收第一指示信息,包括:
    接收所述第一PLMN的AF发送的所述第一指示信息;或者
    接收所述第一PLMN的NEF发送的所述第一指示信息。
  49. 根据权利要求47所述的PCF,其中,在所述向第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述操作还包括:
    在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访 PLMN,所述第二PLMN为目标EAS所在PLMN;
    基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
  50. 根据权利要求47-49任一项所述的PCF,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  51. 一种迁移边缘应用服务器的装置,应用于第一SMF,包括:
    第一接收单元,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    第一发送单元,用于向所述第二PLMN中的第二SMF发送第二指示信息,所述第二指示信息是基于所述第一指示信息确定的;
    第一配置单元,接收所述第二SMF发送的确认信息后,向所述第一PLMN中的第一UPF配置第一路由规则,所述第一路由规则用于将上行数据路由至所述第二PLMN中的第二UPF。
  52. 根据权利要求51所述的迁移边缘应用服务器的装置,其中,所述第一发送单元具体用于:
    基于所述第一指示信息,确定所述第二指示信息,所述第二指示信息用于指示将所述源EAS向所述目标EAS迁移;
    向所述第二SMF发送所述第二指示信息。
  53. 根据权利要求51所述的迁移边缘应用服务器的装置,其中,所述第一UPF为:支持UL CL/BP的UPF或支持PSA的UPF。
  54. 根据权利要求53所述的迁移边缘应用服务器的装置,其中,所述第一配置单元具体用于:
    基于所述第二SMF发送的确认信息,向第一UPF配置所述第一路由规则。
  55. 根据权利要求54所述的迁移边缘应用服务器的装置,其中,所述装置还包括第一选择单元,所述第一选择单元用于:
    在所述基于所述第二SMF发送的确认信息,向第一UPF配置所述第一 路由规则之前,插入或重新选择支持UL CL/BP的UPF。
  56. 根据权利要求51所述的迁移边缘应用服务器的装置,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  57. 根据权利要求51或56所述的迁移边缘应用服务器的装置,其中,所述第一接收单元具体用于:
    接收携带有所述第一指示信息的PCC规则,所述PCC规则是所述第一PLMN的PCF生成的。
  58. 根据权利要求56所述的迁移边缘应用服务器的装置,其中,所述第一接收单元具体用于:
    在所述第一指示信息包括所述第二信息的情况下,接收所述第一PLMN的AF发送的所述第二信息。
  59. 根据权利要求56所述的迁移边缘应用服务器的装置,其中,所述装置还包括第一确定单元,在所述第一指示信息包括所述第二信息的情况下,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述第一确定单元用于:
    基于第二信息和所述第二PLMN的EAS部署信息,确定目标DNAI;
    向所述第一PLMN的第一AMF发送携带有所述目标DNAI的第一请求消息,所述第一请求消息用于请求所述第一AMF选择第二PLMN中的SMF;
    接收所述第一AMF发送的选择SMF的信息之后,确定所述第二SMF。
  60. 根据权利要求51所述的迁移边缘应用服务器的装置,其中,所述装置还包括第三确定单元,在所述向所述第二PLMN中的第二SMF发送第二指示信息之前,所述第三确定单元用于:
    在所述第二PLMN为拜访PLMN的情况下,向所述第一PLMN的UDM发送第三请求消息,所述第三请求消息用于请求确认UE是否可授权接入所述第二PLMN;
    接收所述第一PLMN的UDM回复的确认信息之后,确定UE可授权接 入所述第二PLMN。
  61. 一种迁移边缘应用服务器的装置,应用于第二SMF,包括:
    第二接收单元,用于接收第一PLMN的第一SMF发送的第二指示信息,所述第二指示信息用于指示将所述第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    第二配置单元,用于基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则,所述第二UPF是所述第二SMF基于所述第二指示信息确定的,所述第二路由规则用于将上行数据路由至所述目标EAS;
    第二发送单元,用于向所述第一SMF发送确认信息。
  62. 根据权利要求61所述的迁移边缘应用服务器的装置,其中,所述第二指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  63. 根据权利要求62所述的迁移边缘应用服务器的装置,其中,所述装置还包括第二选择单元,在所述第二指示信息包括所述第二信息的情况下,在所述基于所述第二指示信息,向所述第二PLMN的第二UPF配置第二路由规则之前,所述第二选择单元用于:
    基于所述第二信息,插入或重新选择第二UPF。
  64. 根据权利要求62所述的迁移边缘应用服务器的装置,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述第二配置单元还用于:
    在所述第二指示信息包括所述第二信息,且所述第二信息为所述EAS IP更换信息的情况下,向所述第二UPF配置所述EAS IP更换信息。
  65. 根据权利要求61-64任一项所述的迁移边缘应用服务器的装置,其中,在所述接收第一PLMN的第一SMF发送的第二指示信息之后,所述第二配置单元还用于:
    基于所述第二指示信息,向所述第二PLMN的第二UPF配置第三路由规则,所述第三路由规则用于将下行数据路由至所述第一PLMN中的第一UPF。
  66. 根据权利要求61-64任一项所述的迁移边缘应用服务器的装置,其中,所述确认信息包括所述第二UPF对应的隧道信息。
  67. 一种迁移边缘应用服务器的装置,应用于AF,包括:
    第二获取单元,用于获取第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    第三发送单元,用于发送所述第一指示信息。
  68. 根据权利要求67所述的迁移边缘应用服务器的装置,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  69. 根据权利要求67或68所述的迁移边缘应用服务器的装置,其中,所述第三发送单元具体用于:
    向所述第一PLMN的NEF或所述第一PLMN的PCF发送所述第一指示信息。
  70. 根据权利要求68所述的迁移边缘应用服务器的装置,其中,所述第三发送单元具体用于:
    在所述第一指示信息包括所述第二信息的情况下,向所述第一PLMN的第一SMF发送所述第二信息。
  71. 根据权利要求68所述的迁移边缘应用服务器的装置,其中,所述第三发送单元具体用于:
    在所述第一指示信息包括所述第二信息的情况下,通过应用层向UE发送所述第二信息。
  72. 一种迁移边缘应用服务器的装置,应用于PCF,包括:
    第三接收单元,用于接收第一指示信息,所述第一指示信息用于指示将第一PLMN的源EAS向第二PLMN的目标EAS迁移;
    第四发送单元,用于基于所述第一指示信息,向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则。
  73. 根据权利要求72所述的迁移边缘应用服务器的装置,其中,所述第 三接收单元具体用于:
    接收所述第一PLMN的AF发送的所述第一指示信息;或者
    接收所述第一PLMN的NEF发送的所述第一指示信息。
  74. 根据权利要求72所述的迁移边缘应用服务器的装置,其中,所述装置还包括生成单元,在所述向所述第一PLMN的第一SMF发送携带有所述第一指示信息的PCC规则之前,所述生成单元具体用于:
    在第二PLMN为拜访PLMN的情况下,确定UE可授权接入所述拜访PLMN,所述第二PLMN为目标EAS所在PLMN;
    基于所述第一指示信息,生成携带有所述第一指示信息的PCC规则。
  75. 根据权利要求72-74任一项所述的迁移边缘应用服务器的装置,其中,所述第一指示信息包括以下信息中的一种或多种信息:
    第一信息:inter-PLMN迁移指示和/或所述第二PLMN的ID;或
    第二信息:EAS IP更换信息或所述目标EAS的信息。
  76. 一种处理器可读存储介质,所述处理器可读存储介质存储有计算机程序,所述计算机程序用于使所述处理器执行权利要求1至25任一项所述的方法。
PCT/CN2023/092488 2022-05-06 2023-05-06 迁移边缘应用服务器的方法、装置、网元及存储介质 WO2023213322A1 (zh)

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CN111586670A (zh) * 2020-04-30 2020-08-25 腾讯科技(深圳)有限公司 用于实现业务连续性的方法及相关设备
WO2021083033A1 (zh) * 2019-10-30 2021-05-06 大唐移动通信设备有限公司 一种中间会话管理功能i-smf确定方法和设备
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