WO2019242731A1 - 数据处理方法和设备 - Google Patents

数据处理方法和设备 Download PDF

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Publication number
WO2019242731A1
WO2019242731A1 PCT/CN2019/092275 CN2019092275W WO2019242731A1 WO 2019242731 A1 WO2019242731 A1 WO 2019242731A1 CN 2019092275 W CN2019092275 W CN 2019092275W WO 2019242731 A1 WO2019242731 A1 WO 2019242731A1
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Prior art keywords
network
communication network
information
terminal
pdu session
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PCT/CN2019/092275
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English (en)
French (fr)
Inventor
柯小婉
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维沃移动通信有限公司
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Publication of WO2019242731A1 publication Critical patent/WO2019242731A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes

Definitions

  • Embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a data processing method and device.
  • 5G communication networks can provide vertical industry with a local area network (LAN) type private communication service to meet the communication needs of vertical industries.
  • LAN local area network
  • LAN services can refer to the provision of Internet Protocol (IP) or non-IP type private communication services on a 3rd Generation Partnership Project (3GPP) network system.
  • IP Internet Protocol
  • 3GPP 3rd Generation Partnership Project
  • Private Virtual Network is a private virtual network that supports LAN-type services.
  • the concepts of PVN and LAN may be mixed and can refer to private communication networks or private communication services.
  • Private communication networks can be divided into type-A networks and type-B networks, where the type-A network can be a communication network that is not used by the public (such as a 3GPP network), but the network can communicate with Carrier networks perform service continuity or roaming.
  • the terminal For a terminal of a type A network, the terminal may have two registrations, one is registered on the type A network and the other is registered on the operator's public land mobile network (PLMN) network.
  • PLMN public land mobile network
  • the type B network may be an isolated communication network (such as a 3GPP network) that does not interact with the operator network.
  • the private communication network as a private network transmission network in a vertical industry, can support the services in the private network of the terminals in the private network or realize the communication between the terminals of the private network.
  • the terminals of the vertical service can access the private communication network to communicate with each other or access the server of the vertical service.
  • Terminals in vertical industries may also access the operator's public network for public communications.
  • the problem of how the protocol data unit PDU session of the private communication service maintains continuity or roaming between the private communication network and the public communication network remains to be solved.
  • the purpose of the embodiments of the present disclosure is to provide a data processing method and device, which solves the problem of maintaining continuity or roaming of a PDU session of a private communication service between a private communication network and a public communication network.
  • an embodiment of the present disclosure provides a data processing method, which is applied to a first device, where the first device is a terminal or a first network element, and the method includes:
  • the first information includes one or more of the following: protocol data unit communication service type information of a PDU session, PDU session communication network information, PDU session slice information, terminal communication service type information, and terminal communication network Information, slice information of the terminal, slice communication service type information, and slice communication network information.
  • an embodiment of the present disclosure further provides a data processing method, which is applied to a second network element.
  • the method includes:
  • the first information includes one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, and terminal Slice information, slice communication service type information, and slice communication network information.
  • an embodiment of the present disclosure further provides a data processing method, which is applied to a third network element, and the method includes:
  • the second information includes one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • an embodiment of the present disclosure further provides a data processing method applied to a terminal.
  • the method includes:
  • the second information includes one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • an embodiment of the present disclosure further provides a first device, where the first device is a terminal or a first network element, and includes:
  • a first determining module configured to determine whether a predetermined condition is satisfied
  • a first sending module configured to send first information to a first target end when the predetermined condition is satisfied
  • the first information includes one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, and terminal Slice information, slice communication service type information, and slice communication network information.
  • an embodiment of the present disclosure further provides a second network element, including:
  • a first receiving module configured to receive first information
  • a first determining module configured to determine an operation of a PDU session of the terminal and / or determine a registration operation of the terminal according to the first information
  • the first information includes one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, and terminal Slice information, slice communication service type information, and slice communication network information.
  • an embodiment of the present disclosure further provides a third network element, including:
  • a second determining module configured to determine the second information according to one or more of a capability of the terminal, contract information of the terminal, communication network information of the first network, and communication network information of the second network;
  • a second sending module configured to send the second information to a second target end
  • the second information includes one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • an embodiment of the present disclosure further provides a terminal, including:
  • a second receiving module configured to receive second information
  • a third determining module configured to determine a PDU session operation according to the second information
  • the second information includes one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • an embodiment of the present disclosure further provides a terminal, including: a processor, a memory, and a program stored on the memory and executable on the processor.
  • a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor.
  • the program is executed by the processor, Implementing the steps of the data processing method according to the first aspect or the fourth aspect.
  • an embodiment of the present disclosure further provides a network element on a network side, including: a processor, a memory, and a program stored on the memory and executable on the processor, where the program is processed by the processor.
  • a network element on a network side, including: a processor, a memory, and a program stored on the memory and executable on the processor, where the program is processed by the processor.
  • an embodiment of the present disclosure further provides a computer-readable storage medium.
  • the computer-readable storage medium stores a program, and when the program is executed by a processor, the program is implemented as the first aspect, the second aspect, Steps of the data processing method according to the third aspect or the fourth aspect.
  • the network can distinguish the PDU session operation of the private communication service and the public communication service through the first information, can support the initiation and transfer of the private communication service under the public communication network, and guarantee the service experience of the private communication service.
  • FIG. 1 is a schematic structural diagram of a wireless communication system in a home routed mode in which a terminal of a first network roams to a second network;
  • FIG. 2 is a first flowchart of a data processing method according to an embodiment of the present disclosure
  • FIG. 3 is a second flowchart of a data processing method according to an embodiment of the present disclosure.
  • FIG. 4 is a third flowchart of a data processing method according to an embodiment of the present disclosure.
  • FIG. 5 is a fourth flowchart of a data processing method according to an embodiment of the present disclosure.
  • FIG. 6 is a fifth flowchart of a data processing method according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a process in which a terminal of a private communication network initiates a PDU session related to a private communication service in a public communication network according to an embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of a process of switching a terminal of a private communication network from a private communication network to a public communication network according to an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram of a process of a terminal of a private communication network switching from a public communication network to a private communication network according to an embodiment of the present disclosure
  • FIG. 10 is a schematic diagram of a process in which a terminal of a private communication network moves to a public communication network to initiate a location update, and requests to activate an existing PDU session of a private communication service according to an embodiment of the present disclosure
  • FIG. 11 is a schematic diagram of a process in which a terminal of a private communication network initiates a PDU session related to a private communication service under the private communication network according to an embodiment of the present disclosure
  • FIG. 12 is a schematic structural diagram of a first device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a second network element according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a third network element according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • 16 is a second schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of a network-side network element according to an embodiment of the present disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations or illustrations. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as more optional or advantageous than other embodiments or designs. Rather, the use of the words “exemplary” or “for example” is intended to present the relevant concept in a concrete manner.
  • the network element may be one of the following: a physical device, a network function, and a network unit.
  • the network element may include at least one of a CN network element and a RAN network element.
  • the private communication network may also be called a non-public communication network, a local area network (LAN), a private virtual network (PVN), an isolated communication network, a dedicated communication network, or other names. It should be noted that, the naming manner is not specifically limited in the embodiments of the present disclosure.
  • the core network element may include but is not limited to at least one of the following: core network equipment, core network nodes, core network functions, core network element, and mobility management entity (Mobility Management Entity) , MME), Access Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Service Gateway (serving GW, SGW), PDN Gateway (PDN GateWay), Policy Control Function (PCF), Policy and Charging Rule Function Unit (PCRF), GPRS Service Support Node (Serving GPRS Support Node, SGSN), Gateway GPRS Support Node (Gateway, GPRS, Support Node, GGSN) wireless access network equipment.
  • MME Mobility Management Entity
  • AMF Access Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PGW Service Gateway
  • PDN Gateway PDN Gateway
  • PCF Policy Control Function
  • PCRF Policy and Charging Rule Function Unit
  • GPRS Service Support Node Server GPRS Support Node, SGSN
  • the radio access network element may include but is not limited to at least one of the following: a radio access network device, a radio access network node, a radio access network function, a radio access network unit, and a 3GPP radio access network.
  • Network access non-3GPP wireless access network, centralized unit (CU), distributed unit (DU), base station, evolved base station (evolved Node B, eNB), 5G base station (gNB), wireless network Controller (Radio Network Controller, RNC), Base Station (NodeB), Non-3GPP InterWorking Function (N3IWF), Access Control (Access Controller, AC) node, Access Point (Access Point, AP) Device or wireless local area network (Wireless Local Area Networks, WLAN) node.
  • the base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE, and 5G base stations (gNB) are not limited in the embodiments of the present disclosure.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station
  • gNB 5G base stations
  • Scenario 1 For a protocol data unit (PDU) session of a private communication service when roaming.
  • PDU protocol data unit
  • a terminal of a type A network When a terminal of a type A network roams to a public communication network, it can initiate private communication services and public communication services.
  • a home routed method may be required to access the data network (DN) of the private network.
  • the PDU session of the public communication service can directly access the DN of the public communication network through the local User Plane Function (UPF), as shown in FIG. 1.
  • UPF User Plane Function
  • the private communication network may be a private virtual network deployed on the operator's network.
  • the public land mobile network (PLMN) identity to which the private communication network belongs may be the same as the PLMN identity of the public communication network. This is different from the roaming scenario between PLMNs.
  • the private communication network terminal establishes a PDU session for establishing a private communication service after roaming to the public communication network PLMN
  • the ⁇ Access Public Land Mobile Network (VPLMN), Single Slice Selection Assistant Information (S-NSSAI)> and its The mapped ⁇ Home Public Land Mobile Network (HPLMN), S-NSSAI>, access mobility management function (Access and Mobility Management Function (AMF)) can choose home session management through ⁇ HPLMN, S-NSSAI> Function (Home Session Management Function, H-SMF).
  • AMF Access and Mobility Management Function
  • AMF can choose to access the Session Management Function (V-SMF) through ⁇ VPLMN, S-NSSAI>.
  • a terminal of a private communication network may have both a home private communication network and a home public communication network.
  • the terminal reports only ⁇ VPLMN, S-NSSAI-3>, its mapped home private communication network ⁇ VPLMN, S-NSSAI-1>, the mapped home public communication network slice information ⁇ VPLMN, S-NSSAI-2> If it is not clear that the requested PDU session is a communication service type, the network does not know which slice information is used to select H-SMF.
  • the PDU session slice information is ⁇ HPLMN, S-NSSAI-1> and ⁇ HPLMN, S-NSSAI-2>. If neither the public communication network information or the private communication network information of the slice is distinguished, nor the requested PDU session is Whether it is a private communication service or a public communication service, it will make the network unclear what to do next.
  • V-SMF Voice Session Management Function
  • S-NSSAI-1 can be the S-NSSAI of the slice where the terminal is allowed to access public communication services or the S-NSSAI of the slice which allows private communication services to roam. If the type of communication service of the requested PDU session is unknown, the network does not know whether it is necessary to select H-SMF in the private communication network for the PDU session.
  • an implementation manner is to indicate a communication service type (private communication service or public communication service) requesting a PDU session.
  • the network can index slice information of the private communication network to which the terminal belongs or public communication to belong Network slice information.
  • the sliced public communication network type and private communication network type are indicated, that is, the terminal reports ⁇ HPLMN, public communication network S-NSSAI> and ⁇ HPLMN, private communication network S-NSSAI>.
  • V-SMF Voice Call Management Function
  • V- UPF User Plane function
  • V-SMF and V-UPF may not be selected for the PDU session. So switching from a private communication network to a public communication network is different from switching within a private communication network. But both are based on N2 interface switching.
  • the target AMF cannot identify whether V-SMF and H-SMF should be selected for the PDU session.
  • the UE context or the context of the PDU session may include slice information of the PDU session in the private communication network and / or slice information of the mapped public communication network.
  • a context description of a PDU session with slice information of a mapped public communication network may allow the PDU session to be transferred to the public communication network.
  • the target AMF selects a V-SMF for the PDU session.
  • Scenario 2 Whether to allow application traffic of PDU sessions or services of upper-layer applications to interoperate between private communication networks and public communication networks.
  • PDU sessions or traffic of private communication networks may allow transfer to public communication networks.
  • PDU sessions or application traffic of public communication services established under public communication networks transfer to private communication networks is not allowed.
  • the application of the private communication service is allowed to roam to the public communication network by configuring the private communication network slice information.
  • an application that allows roaming to the public communication network to configure the slice information of the private communication network and the slice information of the mapped public communication network.
  • Application of traffic will trigger the establishment of a PDU session.
  • the slice information of the PDU session has private communication network slice information and mapped public communication network slice information, it indicates that the PDU session is allowed to be transferred to the public communication network.
  • the existing application traffic that is not configured to map public communication network mapping slice information can still trigger the establishment of a PDU session and does not include S-NSSAI.
  • Terminal of type B the application of traffic is not allowed to access in the public communication network. In order to avoid that the terminal fails to transfer the PDU session subsequently or the radio access network fails to switch the PDU session.
  • the SMF when a PDU session of a private communication service is established in a private communication network, the SMF may clearly indicate whether the PDU session of the terminal or the radio access network terminal is allowed to access the public communication network.
  • the PCF can clearly indicate whether the terminal's application traffic is allowed to access the public communication network when configuring a policy for the terminal.
  • the terminal may decide whether to initiate a PDU session of the private communication service under the public communication network or to establish an existing PDU session of the private communication service.
  • the SMF may release the PDU session context or release the user plane connection of the PDU session.
  • an embodiment of the present disclosure provides a data processing method.
  • the method may be executed by a terminal and includes the following steps 201 and 202.
  • Step 201 The terminal determines whether a predetermined condition is satisfied
  • the method may further include: acquiring second information.
  • second information reference may be made to the description in the embodiment shown in FIG. 5, and details are not described herein again.
  • the predetermined condition may include one or more of the following:
  • the terminal requests activation of a PDU session under the second network
  • the terminal is transferred between the first network and the second network
  • the DN terminal that the terminal needs to access to the first private communication network connection needs to initiate a PDU session establishment of the private communication service.
  • the first network is a public communication network and the second network is a private communication network. In one embodiment, the first network is a private communication network and the second network is a public communication network. In one embodiment, The first network is a first private communication network, and the second network is a second private communication network.
  • the terminal may be a terminal of the first private communication network.
  • the terminal of the first private communication network may include at least one of the following: a terminal subscribed to the first private communication network, a terminal registered with the first private communication network, and a terminal of the type A first private communication network.
  • the PDU session is a PDU session of the first private communication network.
  • the PDU session of the first private communication network may include at least one of the following: a PDU session established on the first private communication network, a PDU session established on another network, and the PDU session accessing the first private network through home roaming Communications network.
  • allowing the terminal to initiate a service of the first network under the second network may include one or more of the following: allowing the terminal to initiate a private communication network service under a public communication network; allowing the terminal to initiate a public communication network or a second private communication network The first private communication network service is launched.
  • initiating a service of the first network under the second network refers to initiating a PDU session establishment request for the service of the first network under the second network.
  • allowing the PDU session to be transferred from the first network to the second network may include one or more of the following:
  • the PDU session carrying the application data flow is allowed to be transferred from the first network to the second network.
  • the PDU session may include one or more of the following: a PDU session of a private communication service, a PDU session established under a private communication network, and a PDU session established under a first private communication network.
  • the terminal may include at least one of the following: a terminal for a private communication service, a terminal for subscribing or registering a private communication network, and a terminal for subscribing or registering a first private communication network.
  • the application may include an application of a private communication service, an application of a private communication network, and an application of a first private communication network.
  • Step 202 When the predetermined condition is satisfied, the terminal sends the first information to the first target end;
  • the first information may include one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, The terminal's slice information, slice communication service type information, and slice communication network information.
  • step 201 when the determination result obtained in step 201 is that the predetermined condition is not satisfied, the process may be ended, or return to step 201 to continue to determine whether the predetermined condition is satisfied.
  • the first target end may be a radio access network (RAN) network element, a core network (CN) network element, AMF, SMF, PCF, of course, it is not limited to this.
  • RAN radio access network
  • CN core network
  • AMF Access Management Function
  • SMF Session Management Function
  • PCF Packet Control Function
  • the communication service type information of the PDU session, the communication service type information of the terminal, or the sliced communication service type information may include one or more of the following: private communication service indication information and public communication service indication information.
  • the communication network information of the PDU session, the communication network information of the terminal, or the sliced communication network information may include one or more of the following: communication network type information and communication network identification.
  • the communication network information of the PDU session is the communication network information of the network on which the PDU session is established.
  • the communication network information of the terminal is communication network information of a network to which the terminal has subscribed or registered.
  • the communication network information of the slice is communication network type information of a network to which the slice belongs.
  • the communication network type information may include one or more of the following: a private communication network, a public communication network, a type A private communication network, and a type B private communication network.
  • the communication network identification may be an identification of a private communication network or an identification of a public communication network.
  • the PDU session is an existing session established on a private communication network
  • the communication network information of the PDU session is the communication network information of the network of the established PDU session.
  • the terminal may indicate that a private communication network identifier for establishing a PDU session and / or a communication network type for establishing a PDU session is a private communication network.
  • the communication network type information may indicate a private communication network of type A or a private communication network of type B.
  • communication network information of the PDU session may be indicated.
  • the slice information of the terminal or the slice information of the PDU session may include one or more of the following: private communication network slice information, public communication network slice information, private communication network slice information, and private communication network slice information to map a public communication network. Slice information; and private communication network slice information mapped from public communication network slice information and public communication network slice information.
  • the private communication network slice information may include one or more of the following: allow the private communication network slice information, configure the private communication network slice information, and subscribe to the private communication network slice information.
  • the private communication network slice information may include one or more of the following: private communication service indication information, private communication network information, and private communication network slice identification information (such as S-NSSAI, NSSAI). Further, the private communication network information may include at least one of the following: a type A network and a type B network.
  • the first information can help the target network to know that the PDU session of the terminal is a PDU session of the private communication service. It needs to adopt the homer routing method, and it is necessary for the terminal to Private communication network slice information selects Home Network Function (H-NF), for example: H-SMF, H-UPF, or visits network function (Visited Network Function, V) according to public communication network slice information of PDU session mapping -NF), for example: V-SMF, V-UPF.
  • H-NF Home Network Function
  • H-UPF Visited Network Function, V
  • V Visitd Network Function
  • an embodiment of the present disclosure provides a data processing method.
  • the method may be executed by a first network element and includes the following steps 301 and 302.
  • Step 301 The first network element determines whether a predetermined condition is met
  • the first network element may include at least one of the following: a RAN network element, a CN network element, AMF, SMF, and PCF.
  • Step 302 When the predetermined condition is satisfied, the first network element sends the first information to the first target end;
  • the predetermined condition may include one or more of the following: the terminal is transferred from the first network to the second network.
  • the first network is a public communication network and the second network is a private communication network.
  • the first network is a private communication network and the second network is a public communication network.
  • the first network is a first private communication network, and the second network is a second private communication network.
  • the transfer of the terminal from the first network to the second network may include one or more of the following: the terminal is switched from the first network to the second network; the terminal is switched from the first network Redirect to a private communication network; and the terminal moves from a first network to a second network.
  • the first information can help the target network to know that the PDU session of the terminal is a PDU session of a private communication service.
  • a Homer routed method is needed, and the terminal needs to select H- NF, for example: H-SMF, H-UPF; or V-NF, for example: V-SMF, V-UPF, according to the public communication network slice information mapped in the PDU session.
  • an embodiment of the present disclosure provides a data processing method.
  • the method is executed by a second network element and includes the following steps 401 and 402.
  • Step 401 Receive first information.
  • the second network element may include at least one of the following: a RAN network element, a CN network element, AMF, SMF, and PCF.
  • the first information may refer to the description in the embodiment shown in FIG. 2, and details are not described herein again.
  • Step 402 determine the operation of the PDU session of the terminal and / or the registration operation of the terminal according to the first information
  • the operation of the PDU session may include one or more of the following:
  • An operation of selecting an H-NF for example, H-SMF, H-UPF
  • H-NF for example, H-SMF, H-UPF
  • V-NF for example, V-SMF, V-UPF
  • V-NF for example, V-SMF, V-UPF
  • the returned PDU session context does not include the PDU session context of the private communication service that does not allow switching.
  • the operation of the PDU session includes one or more of the following:
  • An operation of selecting an H-NF for example, H-SMF, H-UPF
  • H-NF for example, H-SMF, H-UPF
  • V-NF for example, V-SMF, V-UPF
  • the first network is a public communication network and the second network is a private communication network. In one embodiment, the first network is a private communication network and the second network is a public communication network. In one embodiment, The first network is a first private communication network, and the second network is a second private communication network.
  • the operation of the PDU session includes one or more of the following:
  • V-NF of the public communication network eg, V-SMF, V-UPF
  • V-SMF public communication network
  • V-UPF V-UPF
  • the PDU session context of the public communication service is not included in the returned PDU session context.
  • the operation of the PDU session includes one or more of the following:
  • V-NF for example, V-SMF, V-UPF
  • the returned PDU session context does not include the PDU session context of the second private communication network service.
  • the operation of selecting the H-NF (for example, H-SMF, H-UPF) of the private communication network for the PDU session according to the first information may include one or more of the following:
  • the first information indicates that the communication service type information of the PDU session is a private communication service
  • selecting H-NF for example: H-SMF, H-UPF
  • H-NF for example: H-SMF, H-UPF
  • H-NF for example: H-SMF, H-UPF
  • the H-NF (for example: H-SMF, H-UPF) is selected according to the slice information of the first network mapped by the slice information of the PDU session.
  • the H-NF of the private communication network is selected for the PDU session according to the first information.
  • H-SMF, H-UPF H-SMF, H-UPF
  • the first network is a public communication network and the second network is a private communication network. In one embodiment, the first network is a private communication network and the second network is a public communication network. In one embodiment, The first network is a first private communication network, and the second network is a second private communication network.
  • the terminal may be a terminal of the first private communication network.
  • the terminal of the first private communication network may include at least one of the following: a terminal subscribed to the first private communication network, a terminal registered with the first private communication network, and a terminal of the type A first private communication network.
  • the PDU session is a PDU session of the first private communication network.
  • the PDU session of the first private communication network may include at least one of the following: a PDU session established on the first private communication network, a PDU session established on another network, and the PDU session accessing the first private network by way of home roaming Communications network.
  • a home-routed PDU session operation related to the private communication network may be adopted.
  • the HomeRouted method can refer to selecting the H-SMF in the private communication network for the PDU session.
  • select H-UPF select H-UPF.
  • the PDU session of the private communication service is a data channel established on the terminal, the RAN network element, the V-UPF, and the H-UPF.
  • the domain name (DN) of the private communication network that the terminal can access.
  • the PDU session requested to be established is a PDU session of a private communication service
  • the SMF in the private communication network may be selected as the H-SMF for the PDU session according to the private communication network slice information in the first information.
  • V-SMF selects V-UPF
  • H-SMF selects H-UPF.
  • the PDU session is a PDU session of an existing private communication service.
  • the current PDU session is selected according to the mapped public communication network slice information in the first information.
  • V-SMF in the public communication network; the terminal moving into the public communication network may include at least one of the following: the terminal switches to the public communication network, the terminal redirects to the public communication network, and the terminal moves to the public communication network.
  • the PDU session is a PDU session of an existing private communication service.
  • the terminal is transferred to the private communication network, the current PDU session is deleted according to the mapped public communication network slice information in the first information.
  • V-SMF in public communication networks.
  • the first information can help the target network to know that the PDU session of the terminal is a PDU session of a private communication service.
  • a Homer routed method is needed, and the terminal needs to select H- based on the private communication network slice information of the PDU session.
  • NF for example: H-SMF, H-UPF, or V-NF, such as V-SMF, V-UPF, according to the public communication network slice information mapped in the PDU session.
  • an embodiment of the present disclosure provides a data processing method.
  • the method is executed by a third network element and includes the following steps 501 and 502.
  • Step 501 Determine the second information according to one or more of the capabilities of the terminal, the contract information of the terminal, the communication network information of the first network, and the communication network information of the second network.
  • the third network element may include at least one of the following: a RAN network element, a CN network element, AMF, SMF, and PCF.
  • the communication network information of the first network or the communication network information of the second network may include one or more of the following: communication network type information and a communication network identifier.
  • the communication network type information may include one or more of the following: a private communication network, a public communication network, a type A private communication network, and a type B private communication network.
  • the identification of the communication network may be an identification of a private communication network or an identification of a public communication network.
  • Step 502 Send the second information to the second target end, where the second information may include one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network. In one embodiment, the first network is a private communication network and the second network is a public communication network. In one embodiment, The first network is a first private communication network, and the second network is a second private communication network.
  • the second target end may be at least one of the following: a RAN network element, a terminal, and a CN network element.
  • the AMF sends the second information to the SMF.
  • the source RAN network element sends the second information to the target RAN network element; during the handover process, the source CN network element sends the second information to the target CN network element.
  • whether the terminal is allowed to initiate the service of the first network under the second network may include one or more of the following: whether the terminal is allowed to initiate the private communication network service under the public communication network; whether the terminal is allowed to be initiated on the public communication network or the second network
  • the first private communication network service is initiated under the private communication network.
  • initiating a service of the first network under the second network refers to initiating a PDU session establishment request for the service of the first network under the second network.
  • the PDU session may include one or more of the following: a PDU session of a private communication service, a PDU session established under a private communication network, and a PDU session established under a first private communication network.
  • whether the PDU session is allowed to be transferred from the first network to the second network may include one or more of the following:
  • the PDU session carrying the application data flow is allowed to be transferred from the first network to the second network.
  • the type B terminal, the PDU session of the type B terminal's private communication service, and / or the application data traffic of the type B terminal's private communication service are not allowed to transfer to the public communication network.
  • the PDU session of the private communication service may allow (or may not allow) the transfer to the public communication network.
  • PDU sessions for public communication services may not allow transfer to private communication networks.
  • the second information can help the RAN network element or the CN network element to decide whether to transfer the PDU session of the terminal and / or the terminal's private communication service to the public communication network; Can initiate private communication services under the public communication network; whether to allow the PDU session of the terminal's private communication service to transfer information to the public communication network and / or whether to allow the application's traffic of the terminal's private communication service to transfer to the public communication network Information to ensure service privacy and service experience for private communications services.
  • An execution subject of the method may be a terminal or a network element at a network side, and includes the following steps 601 and 602.
  • Step 601 Receive second information.
  • the terminal sends the second information from the RAN network element.
  • Step 602 Determine a PDU session operation according to the second information.
  • the PDU session operation may include one or more of the following:
  • the PDU session of the private communication service may be allowed (or not allowed) to be transferred to the public communication network.
  • PDU sessions for public communication services may not allow transfer to private communication networks.
  • the second information can help the RAN network element or the CN network element to decide whether to transfer the PDU session of the terminal and / or the terminal's private communication service to the public communication network; Can initiate private communication services under the public communication network; whether to allow the PDU session of the terminal's private communication service to transfer information to the public communication network and / or whether to allow the terminal's private communication service application traffic to be transferred to the public communication network Information to ensure service privacy and service experience for private communications services.
  • This example mainly describes a process in which a terminal of a private communication network initiates a PDU session related to a private communication service under a public communication network.
  • the process of establishing a PDU session includes the following steps 1 to 15.
  • Step 1 The terminal sends a non-access stratum (NAS) message to the AMF.
  • the NAS message includes a PDU session establishment request message.
  • the terminal determines that a PDU session related to a private communication service can be initiated on the public communication network according to the second information.
  • the second information reference may be made to the description in the embodiment shown in FIG. 5, and details are not described herein again.
  • the PDU session establishment request message or NAS message includes the first information.
  • the first information may refer to the description in the embodiment shown in FIG. 2.
  • the first information may include at least one of the following: public communication network slice information; mapped private communication network slice information, and communication service type information (indicating a private communication service). ).
  • Step 2 The AMF receives a PDU session establishment request message.
  • the AMF may select the V-SMF according to the first information (for example, public communication network slice information). Alternatively, the AMF may select the H-SMF according to the first information (for example, the mapped private communication network slice information). Alternatively, the AMF may map the private communication network slice information according to the first information (for example, public communication network slice information and private communication service indication information), and select H-SMF according to the private communication network slice information. The AMF can then send a request message to the selected V-SMF to create a Session Management (SM) context.
  • SM Session Management
  • the manner in which the AMF selects the SMF can be directly selected or selected through the NSSF.
  • the request message for creating the SM context includes one of the following: first information and information of the H-SMF.
  • Step 3 V-SMF selects V-UPF.
  • the V-SMF sends an N4 session establishment to the selected V-SMF.
  • Step 4 The V-SMF sends a SM context creation request to the H-SMF.
  • the SM creation context request message includes one of the following: the first information may refer to the description in the embodiment shown in FIG. 2, which is not described here again.
  • Step 5 The H-SMF registers the terminal to Unified Data Management (UDM). H-SMF can also obtain and order the contract data of the terminal.
  • UDM Unified Data Management
  • Step 6 The H-SMF obtains the policy of the terminal from the PCF.
  • Step 7 The H-SMF sends an N4 session establishment to the selected H-SMF.
  • Step 8 The H-SMF returns an SM session establishment response to the V-SMF.
  • Step 9 The V-SMF sends an N1N2 message to the AMF.
  • the N1N2 message contains the NAS message that the PDU session establishment accepts.
  • Step 10 The AMF sends a PDU session resource establishment request message to the RAN network element.
  • the N1N2 message contains the NAS message for the PDU session establishment.
  • Step 11 The RAN network element configures radio resources to the terminal and sends a PDU session establishment message to the terminal.
  • the terminal returns an RRC response to the RAN network element.
  • Step 12 The RAN network element returns a PDU session resource establishment response to the AMF.
  • Step 13 The AMF sends an SM context update request to the V-SMF.
  • Step 14 The V-SMF sends an N4 session update to the V-UPF.
  • Step 15 The V-SMF sends an SM context update response to the AMF.
  • the terminal of the private communication network may have both a private communication network service and a public communication network service.
  • the PDU session of the private communication service needs to access the private communication network through the public communication network (for example: H-SMF connected through V-SMF, and H-UPF connected through V-UPF). Access the private DN.
  • the PDU session of the public communication service can directly access the public DN through the public communication network (for example, V-SMF, V-UPF).
  • the establishment process of different PDU sessions under the same terminal is different. Therefore, by providing the terminal with the first information, the network can decide different PDU session operations.
  • Example 2 The terminal switches from a private communication network to a public communication network
  • the example mainly describes a process in which a terminal of a private communication network switches from a private communication network to a public communication network. Please refer to FIG. 8, which includes the following steps: 1 to 21.
  • Step 1 When a handover event occurs, the source RAN network element initiates an N2 handover.
  • Step 2 The RAN network element sends an N2 handover request to the source network.
  • Step 3 The source AMF sends a PDU session context request message to the H-SMF.
  • the H-SMF returns a PDU session context response to the source AMF.
  • the source AMF sends the first information to the H-SMF.
  • the first information may include at least one of the following: an instruction for switching from a private communication network to a public communication network, and an identification of a public communication network.
  • H-SMF can perform at least one of the following: not return the context of the corresponding PDU session, delete the context of the PDU session, release the user plane connection of the PDU session, suspend the PDU session .
  • the PDU session context response message includes the first information of the PDU session, and the description of the first information may refer to the foregoing method embodiment.
  • the first information may include at least one of the following: public communication network slice information, mapping Private communication network slice information.
  • Step 4 The source AMF sends a create context request to the target AMF.
  • the create context request message may include the first information of the PDU session.
  • the description of the first information may refer to the foregoing method embodiments.
  • the first information may include at least one of the following: public communication network slice information and mapped private communication network slice information.
  • Step 5 The target AMF receives the first message.
  • the AMF selects the V-SMF according to the first information (for example, public communication network slice information of the PDU session).
  • the first information for example, public communication network slice information of the PDU session.
  • the AMF sends a create SM context request to the selected V-SMF.
  • the AMF can select SMF directly or through NSSF.
  • Step 6 V-SMF selects V-UPF.
  • the V-SMF sends an N4 session establishment to the selected V-UPF.
  • Step 7 The V-SMF sends a create SM context response to the target AMF.
  • Step 8 The target AMF sends a handover request to the target RAN network element.
  • Step 9 The target RAN network element sends a handover request confirmation to the target AMF.
  • Step 10 The target AMF sends an update SM context request to the V-SMF. Request to update the RAN side address of the N3 interface of the PDU session.
  • Step 11 The V-SMF sends an N4 session update to the V-UPF.
  • Step 12 The V-SMF returns an update SM context response to the target AMF.
  • Step 13 The target AMF sends a create context response to the source AMF.
  • Step 14 The source AMF sends a handover command to the source RAN network element.
  • Step 15 The RAN network element sends an RRC message to the terminal.
  • the RRC message contains a handover command.
  • Step 16 The terminal accesses the target RAN network element.
  • Step 17 The target RAN network element sends a handover notification to the target AMF.
  • Step 18 The target AMF sends a handover completion to the source AMF.
  • Step 19 The source AMF sends an update SM context request message to the H-SMF.
  • the message requests to update the downlink AN channel information of the H-UPF.
  • Step 20 The H-SMF sends an N4 session modification to the H-UPF.
  • Step 21 The H-SMF sends an update SM context response to the source AMF.
  • data between the terminal and the DN is transmitted through the data channel between the target RAN network element, V-UPF, and H-UPF.
  • the session management signaling between the terminal and the H-SMF is transmitted between the target RAN network element, AMF and V-SMF.
  • Example 3 Switching from a public communication network to a private communication network
  • This example mainly describes the process of the terminal of the private communication network switching from the public communication network to the private communication network. Please refer to FIG. 9, which includes the following steps: 1 to 18.
  • Step 1 When a handover event occurs, the source RAN network element initiates an N2 handover.
  • Step 2 The RAN network element sends an N2 handover request to the source network.
  • Step 3 The source AMF selects the target AMF.
  • the source AMF sends a create context request to the target AMF.
  • the creation context request may include the first information of the PDU session.
  • the first information may include at least one of the following: public communication network slice information of the PDU session, private communication network slice information of the PDU session mapping, and communication service type information (private communication service or public communication service) of the PDU session.
  • Step 4 The target AMF sends an update SM context request to the H-SMF.
  • Step 5 The target AMF sends a handover request to the target RAN network element.
  • Step 6 The target RAN network element sends a handover request confirmation to the target AMF.
  • Step 7 The target AMF sends an update SM context request to the H-SMF. Request to update the RAN side address of the N3 interface of the PDU session.
  • Step 8 The H-SMF sends an N4 session update to the H-UPF.
  • Step 9 The H-SMF returns an update SM context response to the target AMF.
  • Step 10 The target AMF sends a create context response to the source AMF.
  • Step 11 The source AMF sends a handover command to the source RAN network element.
  • Step 12 The RAN network element sends an RRC message to the terminal.
  • the RRC message contains a handover command.
  • Step 13 The terminal accesses the target RAN network element.
  • Step 14 The target RAN network element sends a handover notification to the target AMF.
  • Step 15 The target AMF sends a handover completion to the source AMF.
  • Step 16 The source AMF sends a request to release the SM context to the V-SMF.
  • Step 17 The V-SMF sends an N4 session release to the V-UPF.
  • Step 18 The V-SMF sends a release SM context response to the source AMF.
  • data between the terminal and the DN is transmitted through the data channel between the target RAN network element and the H-UPF.
  • the session management signaling between the terminal and the H-SMF is transmitted between the target RAN network element and the AMF.
  • Example four requesting activation of a PDU session established on a private communication network in a public communication network
  • This example mainly describes a process in which a terminal of a private communication network moves into a public communication network to initiate a location update, and requests to activate an existing PDU session of the private communication network. Please refer to FIG. 10, which includes the following steps: 1 to 14.
  • Step 1 The terminal sends a registration request message to the target AMF through the RAN network element, and the request type may be registered mobile update.
  • the terminal requests activation of a user plane connection of a PDU session established on the private communication network.
  • the terminal determines that the PDU session related to the private communication service can be requested to be activated on the public communication network according to the second information. Further, for the second information, reference may be made to the description in the embodiment shown in FIG. 5, and details are not described herein again.
  • Step 2 The target AMF sends a terminal context transfer message to the source AMF.
  • Step 3 The source AMF requests the PDU session context from the H-SMF.
  • Step 4 The source AMF sends a terminal context transfer response message to the target AMF.
  • the terminal context transmission response message includes the first information of the PDU session.
  • first information may include at least one of the following: public communication network slice information, mapped private communication network slice information, and communication service type information of the PDU session (private communication service or public communication service).
  • Step 5 The target AMF initiates registration of the terminal with the UDM, explaining that the service AMF of the terminal is changed to the target AMF.
  • the target AMF may also obtain and / or subscribe to the subscription information of the terminal.
  • Step 6 The target AMF receives the first message.
  • the AMF selects the V-SMF according to the first information (such as public communication network slice information of the PDU session).
  • the first information such as public communication network slice information of the PDU session.
  • the AMF sends a create SM context request to the selected V-SMF.
  • the AMF can select SMF directly or through NSSF.
  • Step 7 V-SMF selects V-UPF.
  • the V-SMF sends an N4 session establishment to the selected V-UPF.
  • Step 8 The V-SMF sends a create SM context response to the target AMF.
  • Step 9 The target AMF sends a registration completion notification to the source AMF. Because the intermediate V-UPF is inserted, the message requests to update the downlink AN channel information of the H-UPF.
  • Step 10 The source AMF sends an update SM context request message to the H-SMF.
  • the message requests to update the downlink access network channel information of the H-UPF.
  • Step 11 The H-SMF sends an N4 session modification to the H-UPF.
  • Step 12 The H-SMF sends an update SM context response to the source AMF.
  • Step 13 The target AMF sends a registration acceptance message to the terminal.
  • Step 14 The terminal returns a registration completion message to the target AMF.
  • the data between the terminal and the DN is transmitted through the data channel between the target RAN network element and the H-UPF.
  • the session management signaling between the terminal and the H-SMF is transmitted between the target RAN network element and the AMF.
  • Example five PDU session establishment in a private network
  • This example mainly describes a process in which a terminal of a private communication network initiates a PDU session related to a private communication service under the private communication network.
  • the process of establishing a PDU session includes the following steps: 1 to 12.
  • Step 1 The terminal sends a NAS message to the AMF.
  • the NAS message includes a PDU session establishment request message.
  • the PDU session establishment request message or NAS message includes the first information.
  • the first information may include at least one of the following: private communication network slice information, mapped public communication network slice information, and communication service type information (indicating a private communication service).
  • Step 2 The AMF may select the SMF according to the first information (for example, private communication network slice information). The AMF can then send a request message to the selected SMF to create a session management context.
  • the first information for example, private communication network slice information
  • the manner in which the AMF selects the SMF can be directly selected or selected through the NSSF.
  • the request message for creating an SM context includes one of the following: first information.
  • Step 3 SMF selects UPF.
  • the SMF sends an N4 session establishment to the selected SMF.
  • Step 4 The SMF registers the terminal to the Unified Data Manager (UDM). SMF can also obtain and order the contract data of the terminal.
  • UDM Unified Data Manager
  • Step 5 The SMF obtains the policy of the terminal from the PCF.
  • Step 6 The SMF sends an N1N2 message to the AMF.
  • the N1N2 message contains the NAS message that the PDU session establishment accepts.
  • the NAS message or the PDU session establishment acceptance message includes second information.
  • Step 7 The AMF sends a PDU session resource establishment request message to the RAN network element.
  • the N1N2 message contains the NAS message for the PDU session establishment.
  • the PDU session resource establishment request message includes second information.
  • Step 8 The RAN network element configures radio resources to the terminal and sends a PDU session establishment message to the terminal.
  • the terminal returns an RRC response to the RAN network element.
  • Step 9 The RAN network element returns a PDU session resource establishment response to the AMF.
  • Step 10 The AMF sends an SM context update request to the MF.
  • Step 11 The SMF sends an N4 session update to the UPF.
  • Step 12 The SMF sends an SM context update response to the AMF.
  • the terminal or the RAN network element obtains information on whether the PDU session is allowed to be transferred to a public communication network or other private communication networks.
  • the embodiment of the present disclosure further provides a first device.
  • the first device may be a terminal or a first network element. Since the principle of solving the problem of the first device is similar to the data processing method in the embodiment of the present disclosure, the first device The implementation of the method can refer to the implementation of the method.
  • the first device 1200 includes:
  • a first sending module 1202 configured to send first information to a first target end when the predetermined condition is met;
  • the first information may include one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, The terminal's slice information, slice communication service type information, and slice communication network information.
  • the communication service type information of the PDU session, the communication service type information of the terminal or the sliced communication service type information may include one or more of the following: private communication service indication information and public communication service indication information.
  • the communication network information of the PDU session, the communication network information of the terminal, or the communication network information of the slice may include one or more of the following: communication network type information and communication network identification.
  • the communication network type information may include one or more of the following: a private communication network, a public communication network, a private communication network of type A, and a private communication network of type B.
  • the slice information of the terminal or the slice information of the PDU session may include one or more of the following: private communication network slice information; public communication network slice information; private communication network slice information and private communication network slice information mapped Public communication network slice information; and private communication network slice information mapped with public communication network slice information and public communication network slice information.
  • the private communication network slice information of the terminal may include one or more of the following: allowed private communication network slice information, configured private communication network slice information, and contracted private communication network slice information.
  • the first device when the first device is a terminal, the first device may further include:
  • a first obtaining module configured to obtain second information, where the second information includes one or more of the following: whether the terminal is allowed to initiate a service of the first network under the second network; and whether a PDU session is allowed from the first network Transfer to the second network; whether to allow application traffic to be transferred from the first network to the second network;
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • the predetermined condition may include one or more of the following:
  • the terminal initiates a PDU session establishment under the second network
  • the terminal requests activation of a PDU session under the second network
  • the terminal is transferred between the first network and the second network; the terminal needs to access a DN connected to the first private communication network; and,
  • the terminal needs to initiate a PDU session establishment of a private communication service
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • the predetermined condition may include one or more of the following:
  • the terminal is transferred from the first network to the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • the first device provided by the embodiment of the present disclosure can execute the foregoing method embodiments, and its implementation principles and technical effects are similar. This embodiment will not repeat them here.
  • a second network element is also provided in the embodiment of the present disclosure. Since the principle of the second network element to solve the problem is similar to the data processing method in the embodiment of the present disclosure, the implementation of the second network element can refer to the implementation of the method. The details are no longer described.
  • the second network element 1300 includes:
  • a first determining module 1302, configured to determine an operation of a PDU session of the terminal and / or determine a registration operation of the terminal according to the first information
  • the first information may include one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, The terminal's slice information, slice communication service type information, and slice communication network information.
  • the communication service type information of the PDU session, the communication service type information of the terminal, or the sliced communication service type information may include one or more of the following: private communication service indication information and public communication service indication information.
  • the communication network information of the PDU session, the communication network information of the terminal, or the sliced communication network information may include one or more of the following: communication network type information and communication network identification.
  • the communication network type information may include one or more of the following: a private communication network, a public communication network, a private communication network of type A, and a private communication network of type B.
  • the slice information of the terminal or the slice information of the PDU session may include one or more of the following: private communication network slice information; public communication network slice information; private communication network slice information and private communication network slice information mapped Public communication network slice information; and private communication network slice information mapped with public communication network slice information and public communication network slice information.
  • the private communication network slice information may include one or more of the following: allow private communication network slice information, configure private communication network slice information, and subscribe to private communication network slice information.
  • the operation of the PDU session may include one or more of the following:
  • An operation of selecting an H-NF for example, H-SMF, H-UPF
  • H-NF for example, H-SMF, H-UPF
  • V-NF for example, V-SMF, V-UPF
  • V-NF for example, V-SMF, V-UPF
  • the returned PDU session context does not include the PDU session context of the private communication service that does not allow switching.
  • the second network element provided by the embodiment of the present disclosure can execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • a third network element is also provided in the embodiment of the present disclosure. Since the principle of the third network element to solve the problem is similar to the data processing method in the embodiment of the present disclosure, the implementation of the third network element can refer to the method implementation, and repeat The details are no longer described.
  • the third network element 1400 includes:
  • a second determining module 1401, configured to determine the second information according to one or more of a capability of the terminal, contract information of the terminal, communication network information of the first network, and communication network information of the second network;
  • the second information may include one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • the third network element provided by the embodiment of the present disclosure can execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, which will not be repeated here in this embodiment.
  • the embodiment of the present disclosure also provides a terminal. Since the principle of the terminal to solve the problem is similar to the data processing method in the embodiment of the present disclosure, the implementation of the terminal can refer to the implementation of the method, and the duplicates are not described again.
  • the terminal 1500 includes:
  • a third determining module 1502 configured to determine a PDU session operation according to the second information
  • the second information may include one or more of the following:
  • the terminal is allowed to initiate a service of the first network under the second network
  • the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network and the second network is a public communication network; or the first network is a public communication network;
  • the network is a first private communication network, and the second network is a second private communication network.
  • the PDU session operation may include one or more of the following:
  • the terminal provided by the embodiment of the present disclosure can execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar. This embodiment will not repeat them here.
  • the terminal 1600 shown in FIG. 16 includes: at least one processor 1601, a memory 1602, at least one network interface 1604, and a user interface 1603.
  • Various components in the terminal 1000 are coupled together through a bus system 1005.
  • the bus system 1605 is used to implement connection and communication between these components.
  • the bus system 1605 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as the bus system 1605 in FIG. 16.
  • the user interface 1603 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball, a touch pad, or a touch screen).
  • a pointing device for example, a mouse, a trackball, a touch pad, or a touch screen.
  • the memory 1602 in the embodiment of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synlink DRAM, SLDRAM synchronous connection dynamic random access memory
  • Direct RAMbus RAM Direct RAMbus RAM
  • the memory 1602 stores the following elements, executable modules or data structures, or a subset of them, or their extended set: an operating system 16021 and an application program 16022.
  • the operating system 16021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
  • the application program 16022 includes various application programs, such as a media player (Player), a browser (Browser), and the like, and is used to implement various application services.
  • a program that implements the methods of the embodiments of the present disclosure may be contained in an application program 16022.
  • the program or instruction stored in the application 16022 can be implemented to implement the following steps: determining whether a predetermined condition is satisfied; and When the condition is predetermined, first information is sent to the first target end, where the first information includes one or more of the following: communication service type information of the protocol data unit PDU session, communication network information of the PDU session, and The slice information, the communication service type information of the terminal, the communication network information of the terminal, the slice information of the terminal, the communication service type information of the slice, and the communication network information of the slice.
  • the program or instruction stored in the application 16022 may be implemented, and the following steps are implemented when executed: receiving second information; Two pieces of information determine the operation of the PDU session; wherein the second information includes one or more of the following: whether the terminal is allowed to initiate the service of the first network under the second network; whether the PDU session is allowed to be transferred from the first network to the second network Whether to allow application data flow to be transferred from a first network to a second network; wherein the first network is a public communication network and the second network is a private communication network; or the first network is a private communication network, The second network is a public communication network; or the first network is a first private communication network and the second network is a second private communication network.
  • the terminal provided by the embodiment of the present disclosure can execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar. This embodiment will not repeat them here.
  • an embodiment of the present disclosure provides another network-side network element 1100, including a processor 1701, a transceiver 1702, a memory 1703, and a bus interface.
  • the processor 1701 may be responsible for managing the bus architecture and general processing.
  • the memory 1103 may store data used by the processor 1701 when performing operations.
  • the network-side network element 1700 may further include a program stored in the memory 1703 and executable on the processor 1101.
  • the program is implemented when executed by the processor 1701: determining whether a predetermined condition is satisfied; when the predetermined condition is satisfied, sending first information to a first target end; wherein the first information It includes one or more of the following: communication service type information of the protocol data unit PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, slice information of the terminal, The communication service type information of the slice and the communication network information of the slice.
  • the program when the program is executed by the processor 1701, the program is implemented to: receive the first information; determine the operation of the PDU session of the terminal and / or determine the registration operation of the terminal according to the first information; wherein, The first information includes one or more of the following: communication service type information of the PDU session, communication network information of the PDU session, slice information of the PDU session, communication service type information of the terminal, communication network information of the terminal, and slice of the terminal Information, slice communication service type information, and slice communication network information.
  • the program is implemented when executed by the processor 1701: according to one of the capabilities of the terminal, the contract information of the terminal, the communication network information of the first network, and the communication network information of the second network, or Multiple items, determining the second information; sending the second information to the second target end; wherein the second information includes one or more of the following: whether the terminal is allowed to initiate a service of the first network under the second network; Whether to allow PDU sessions to be transferred from the first network to the second network; whether to allow application data streams to be transferred from the first network to the second network; wherein the first network is a public communication network and the second network is a private communication network Or, the first network is a private communication network and the second network is a public communication network; or the first network is a first private communication network and the second network is a second private communication network.
  • the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 1701 and various circuits of the memory represented by the memory 1703 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, the embodiments of this disclosure will not further describe them.
  • the bus interface provides an interface.
  • the transceiver 1702 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
  • the network-side network element provided in the embodiment of the present disclosure can execute the foregoing method embodiments, and the implementation principles and technical effects are similar, which will not be repeated here in this embodiment.
  • the steps of the method or algorithm described in connection with the present disclosure may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions.
  • Software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, mobile hard disk, read-only optical disk, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • the ASIC can be located in a core network interface device.
  • the processor and the storage medium can also exist as discrete components in the core network interface device.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.
  • the embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present disclosure are described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowcharts and / or block diagrams, and combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions.
  • These computer program instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, so that instructions generated by the processor of the computer or other programmable data processing device may be used to Means for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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Abstract

本公开实施例提供一种数据处理方法和设备，该方法包括：判断是否满足预定条件；当满足所述预定条件时，向第一目标端发送第一信息；其中，所述第一信息包括以下一项或多项：协议数据单元PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。

Description

数据处理方法和设备
相关申请的交叉引用
本申请主张在2018年6月22日在中国提交的中国专利申请No.201810654483.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域，具体涉及一种数据处理方法和设备。
背景技术
许多垂直行业都有通信的需求，例如：铁路调度、自动化控制等。第五代移动通信技术(Fifth-generation，5G)通信网络可以为垂直行业提供一种局域网(Local Area Network，LAN)类型的私有通信服务，满足垂直行业的通信需求。
LAN服务可以是指在第三代合作伙伴计划(3-rd Generation Partnership Project，3GPP)网络系统上提供互联网协议(Internet Protocol，IP)或非IP类型的私有通信服务。
私有虚拟网络(Private Virtual Network，PVN)是一种支持LAN类型服务的私有虚拟网络。PVN和LAN的概念可能会混用，可以泛指私有通信网络或私有通信服务。私有通信网络可以分为类型A网络(type-A network)和类型B网络(type-B network)，其中类型A网络可以是一个不用于公众的通信网络(比如3GPP网络)，但是该网络可以与运营商网络进行服务连续性或漫游。对于类型A网络的终端，该终端可以有两个注册，一个注册在类型A网络，另一个注册在运营商公共陆地移动网络(Public Land Mobile Network，PLMN)的网络。类型B网络可以是一个不与运营商网络交互的隔离的通信网络(比如3GPP网络)。
私有通信网络作为垂直行业的私有网络传输网络，可以支持私有网络内的终端私有网络中业务或实现私有网络的终端之间的通信。
当通过运营商网络为垂直业务提供私有通信网络时，垂直业务的终端可 以接入私有通信网络进行相互通信或者访问垂直业务的服务器。垂直行业的终端还可能同时访问运营商的公众网络，进行公众通信业务。目前，私有通信服务的协议数据单元PDU会话如何在私有通信网络和公众通信网络之间保持连续性或漫游的问题仍有待解决。
发明内容
本公开实施例的目的在于提供一种数据处理方法和设备，解决私有通信服务的PDU会话在私有通信网络和公众通信网络之间保持连续性或漫游的问题。
第一方面，本公开实施例提供了一种数据处理方法，应用于第一设备，所述第一设备为终端或第一网元，所述方法包括：
判断是否满足预定条件；
当满足所述预定条件时，向第一目标端发送第一信息；
其中，所述第一信息包括以下一项或多项：协议数据单元PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
第二方面，本公开实施例还提供了一种数据处理方法，应用于第二网元，所述方法包括：
接收第一信息；
根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
第三方面，本公开实施例还提供了一种数据处理方法，应用于第三网元，所述方法包括：
根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；
向第二目标端发送所述第二信息；
其中，所述第二信息包括以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
第四方面，本公开实施例还提供了一种数据处理方法，应用于终端，所述方法包括：
接收第二信息；
根据所述第二信息确定PDU会话操作；
其中，所述第二信息包括以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
第五方面，本公开实施例还提供了一种第一设备，所述第一设备为终端或第一网元，包括：
第一判断模块，用于判断是否满足预定条件；
第一发送模块，用于当满足所述预定条件时，向第一目标端发送第一信息；
其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型 信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
第六方面，本公开实施例还提供了一种第二网元，包括：
第一接收模块，用于接收第一信息；
第一确定模块，用于根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
第七方面，本公开实施例还提供了一种第三网元，包括：
第二确定模块，用于根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；
第二发送模块，用于向第二目标端发送所述第二信息；
其中，所述第二信息包括以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
第八方面，本公开实施例还提供了一种终端，包括：
第二接收模块，用于接收第二信息；
第三确定模块，用于根据所述第二信息确定PDU会话操作；
其中，所述第二信息包括以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
第九方面，本公开实施例还提供了一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第一方面或第四方面所述的数据处理方法的步骤。
第十方面，本公开实施例还提供了一种网络侧网元，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第一方面、第二方面、第三方面或第四方面所述的数据处理方法的步骤。
第十一方面，本公开实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如第一方面、第二方面、第三方面或第四方面所述的数据处理方法的步骤。
本公开的实施例，网络通过第一信息可以区分私有通信服务和公众通信服务的PDU会话操作，可以支持在公众通信网络下私有通信服务的发起和转移，保障私有通信服务的服务体验。
附图说明
通过阅读下文可选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出可选实施方式的目的，而并不认为是对本公开的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为第一网络的终端漫游到第二网络的归属地路由(home routed)方式的无线通信系统的架构示意图；
图2为本公开实施例的数据处理方法的流程图之一；
图3为本公开实施例的数据处理方法的流程图之二；
图4为本公开实施例的数据处理方法的流程图之三；
图5为本公开实施例的数据处理方法的流程图之四；
图6为本公开实施例的数据处理方法的流程图之五；
图7为本公开实施例的私有通信网络的终端在公众通信网络下发起私有 通信业务相关的PDU会话的过程示意图；
图8为本公开实施例的私有通信网络的终端从私有通信网络切换到公众通信网络的过程示意图；
图9为本公开实施例的私有通信网络的终端从公众通信网络切换回私有通信网络的过程示意图；
图10为本公开实施例的私有通信网络的终端移入公众通信网络发起位置更新，并请求激活已有的私有通信业务的PDU会话的过程示意图；
图11为本公开实施例的私有通信网络的终端在私有通信网络下发起私有通信业务相关的PDU会话的过程示意图；
图12为本公开实施例的第一设备的结构示意图；
图13为本公开实施例的第二网元的结构示意图；
图14为本公开实施例的第三网元的结构示意图；
图15为本公开实施例的终端的结构示意图之一；
图16为本公开实施例的终端的结构示意图之二；
图17为本公开实施例的网络侧网元的结构示意图。
具体实施方式
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本公开实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更可选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本公开实施例中，网元可以是以下之一：实体设备、网络功能、网络单元。
在本公开实施例中，网元可以包含至少以下之一：CN网元、RAN网元。
本公开实施例中，私有通信网络也可以称为非公众通信网络、本地区域网络(LAN)、私有虚拟网络(PVN)、隔离的通信网络、专用的通信网络或其他命名。需要说明的是，在本公开实施例中对于命名方式不做具体限定。
本公开实施例中，核心网网元(CN网元)可以包含但不限于如下以下至少一项：核心网设备、核心网节点、核心网功能、核心网网元、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能(Access Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、服务网关(serving GW,SGW)、PDN网关(PDN Gate Way)、策略控制功能(Policy Control Function、PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、GPRS服务支持节点(Serving GPRS Support Node，SGSN)、网关GPRS支持节点(Gateway GPRS Support Node，GGSN)无线接入网设备。
在本公开实施例中，无线接入网网元可以包含但不限于以下至少一项：无线接入网设备、无线接入网节点、无线接入网功能、无线接入网单元、3GPP无线接入网、非3GPP无线接入网、集中单元(Centralized Unit，CU)、分布式单元(Distributed Unit，DU)、基站、演进型基站(evolved Node B，eNB)、5G基站(gNB)、无线网络控制器(Radio Network Controller，RNC)、基站(NodeB)、非3GPP互操作功能(Non-3GPP InterWorking Function，N3IWF)、接入控制(Access Controller，AC)节点、接入点(Access Point，AP)设备或无线局域网(Wireless Local Area Networks，WLAN)节点。
基站，可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNB或e-NodeB，evolutional Node B)及5G基站(gNB)，本公开实施例并不限定。
需要说明的是，本公开实施例涉及以下场景：
场景一、对于漫游时私有通信业务的协议数据单元(Protocol Data Unit，PDU)会话。
当类型A网络的终端漫游到公众通信网络时，可以发起私有通信业务和公众通信业务。对于私有通信业务的PDU会话，可能需要采用归属路由(Home  routed)的方式才能访问私有网络的数据网络(Data Network，DN)。而公众通信业务的PDU会话，则可以通过本地的用户平面功能(User Plane Function，UPF)直接接入公众通信网络的DN，参见图1。
私有通信网络可能是部署在运营商网络上的私有虚拟网络。私有通信网络归属的公共陆地移动网络(Public Land Mobile Network，PLMN)标识与公众通信网络的PLMN标识可能是一样的。这与PLMN之间的漫游的场景是不同的。
1)私有通信网络终端漫游到公众通信网络PLMN后建立私有通信服务的PDU会话建立
对于PLMN间漫游场景的PDU会话建立，通过PDU会话的<访问公共陆地移动网络(Visited Public Land Mobile Network，VPLMN)，单切片选择辅助信息(Single Network Slice Selection Assistance Information，S-NSSAI)>和其映射的<归属公用陆地移动网络(Home Public Land Mobile Network，HPLMN),S-NSSAI>，接入移动管理功能(Access and Mobility Management Function，AMF)可以通过<HPLMN，S-NSSAI>选择归属会话管理功能(Home Session Management Function，H-SMF)。AMF可以通过<VPLMN，S-NSSAI>选择访问会话管理功能(Visited Session Management Function，V-SMF)。但是私有通信网络的终端可能同时具有归属私有通信网络和归属公众通信网络。当终端仅上报<VPLMN，S-NSSAI-3>，其映射的归属私有通信网络<VPLMN，S-NSSAI-1>,映射的归属公众通信网络的切片信息<VPLMN，S-NSSAI-2>，如果不清楚请求的PDU会话是通信服务类型，网络不清楚采用哪个切片信息选择H-SMF。
同一PLMN下私有通信网络终端漫游到公众通信网络PLMN后建立私有通信服务的PDU会话建立。PDU会话的切片信息是<HPLMN，S-NSSAI-1>和<HPLMN，S-NSSAI-2>，如果既不区分切片的公众通信网络信息和私有通信网络信息，也不区分请求的PDU会话是为了私有通信服务还是公众通信服务，会导致网络不清楚下一步的操作。
-当终端上报<HPLMN，S-NSSAI-1>和<HPLMN，S-NSSAI-2>，如果是公众通信服务的PDU会话，网络会认为PLMN相同情况下，终端发 送了两个切片信息是错误操作。
-当终端上报<HPLMN，S-NSSAI-1>和<HPLMN，S-NSSAI-2>，如果是私有通信服务的PDU会话，网络不清楚采用哪个切片信息选择访问会话管理功能(Visited Session Management Function，V-SMF)，以及网络也不清楚采用哪个切片信息选择归属会话管理功能(Home Session Management Function，H-SMF)。
-当终端仅上报<HPLMN，S-NSSAI-1>，S-NSSAI-1可以是终端允许接入公众通信服务的切片的S-NSSAI或者是允许私有通信服务漫游的切片的S-NSSAI。如果不清楚请求的PDU会话的通信服务类型，网络不清楚是否需要为PDU会话选择私有通信网络中的H-SMF。
在本公开实施例中，一种实施方式是指示请求PDU会话的通信服务类型(私有通信服务或公众通信服务)通过不同的类型，网络可以索引终端归属的私有通信网络的切片信息或归属公众通信网络的切片信息。另一种实施方式中，指示切片的公众通信网络类型和私有通信网络类型，即终端上报<HPLMN，公众通信网络S-NSSAI>和<HPLMN，私有通信网络S-NSSAI>。
2)私有通信网络到公众通信网切换：
私有通信网络切换到公众通信网络时，需采用Home routed(归属地路由)的方式，要为私有通信网络的已有的PDU会话选择V-SMF，访问用户平面功能(Visited User plane Function，V-UPF)。而在私有通信网络内切换时，可以不为PDU会话选择V-SMF和V-UPF。所以私有通信网络切换到公众通信网络与私有通信网络内切换不同。但二者都是基于N2接口的切换。目标AMF无法识别是否应该为PDU会话选择V-SMF和H-SMF。
在本公开实施例中，UE上下文或PDU会话的上下文中可以包含PDU会话的在私有通信网络的切片信息和/或映射的公众通信网络的切片信息。具有映射的公众通信网络的切片信息的PDU会话的上下文说明可以允许PDU会话转移到公众通信网络。根据映射的公众通信网络的切片信息，目标AMF为PDU会话选择一个V-SMF。
场景二、是否允许PDU会话或上层应用的业务的应用数据流(traffic)在私有通信网络和公众通信网络之间互操作的应用traffic。
可以理解的是，可能不是所有的私有通信网络的PDU会话或应用traffic都允许转移到公众通信网络。对于在公众通信网络下建立的公众通信服务的PDU会话或应用traffic，不允许转移到私有通信网络。
在本公开实施例中，可以通过配置私有通信网络切片信息来指示是否允许私有通信服务的应用traffic漫游到公众通信网络。比如允许漫游到公众通信网络的应用traffic配置私有通信网络的切片信息和映射的公众通信网的切片信息。应用traffic会触发PDU会话的建立。PDU会话的切片信息具有私有通信网络切片信息和映射的公众通信网络切片信息时，则说明PDU会话允许转移到公众通信网络。
但是，现有的对没有配置映射公众通信网络映射切片信息(比如S-NSSAI)的应用traffic，仍然可以触发PDU会话的建立，且不包含S-NSSAI。例如：类型B的终端，应用traffic不允许在公众通信网络中接入。为了避免终端后续转移PDU会话失败或者无线接入网切换PDU会话失败。
-在本公开一种实施例中，私有通信服务的PDU会话在私有通信网络建立时，SMF可以明确指示终端或无线接入网终端的PDU会话是否允许接入公众通信网络。或者，PCF可以通过给终端配置策略时，明确指示终端的应用traffic是否允许接入公众通信网络。终端可以决定在公众通信网络下是否发起私有通信服务的PDU会话建立或激活已有的私有通信服务的PDU会话。
-在本公开另一种实施例中，对不允许切换的PDU会话，在终端从私有通信网络转移到公众通信网络时，SMF可以释放PDU会话上下文或者释放PDU会话的用户面连接。
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，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有作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。
参见图2，本公开实施例提供了一种数据处理方法，该方法的执行主体可以为终端，包括如下步骤201和202。
步骤201：终端判断是否满足预定条件；
在本公开的另一些实施例中，可选地，在步骤201之前方法还可以包括：获取第二信息。所述第二信息可参见如图5所示的实施例中的描述，此处不再赘述。
可选地，预定条件可以包括以下一项或多项：
允许终端在第二网络下发起第一网络的服务；
允许PDU会话从第一网络转移到第二网络；
允许应用数据流(traffic)从第一网络转移到第二网络；终端在第二网络下发起PDU会话建立；
终端在第二网络下请求激活PDU会话；
终端在第一网络和第二网络之间转移；
终端需要接入到第一私有通信网络连接的DN终端需要发起私有通信服务的PDU会话建立。
一种实施方式中，第一网络是公众通信网络，第二网络是私有通信网络；一种实施方式中，第一网络是私有通信网络，第二网络是公众通信网络；一种实施方式中，第一网络是第一私有通信网络，第二网络是第二私有通信网络。
一种实施方式中，终端可以是第一私有通信网络的终端。进一步地，第一私有通信网络的终端可以包含至少以下之一：签约了第一私有通信网络的终端、注册了第一私有通信网络的终端、类型A的第一私有通信网络的终端。
一种实施方式中，PDU会话是第一私有通信网络的PDU会话。进一步地，第一私有通信网络的PDU会话可以包含至少以下之一：在第一私有通信网络建立的PDU会话、在其他网络建立PDU会话且该PDU会话通过归属地漫游的方式接入第一私有通信网络。
进一步地，允许终端在第二网络下发起第一网络的服务可以包括以下一项或多项：允许终端在公众通信网络下发起私有通信网络服务；允许终端在公众通信网络或第二私有通信网络下发起第一私有通信网络服务。
一种实施方式中，在第二网络下发起第一网络的服务是指在第二网络下发起关于第一网络的服务的PDU会话建立请求。
进一步地，允许PDU会话从第一网络转移到第二网络可以包括以下一项 或多项：
允许将在第一网络下建立的PDU会话切换到第二网络；
允许在第一网络下请求激活和/或激活第二网络下建立的PDU会话(比如用户面连接)；
允许在公众通信网络下请求建立和/或建立的私有通信服务的PDU会话、允许在第二私有通信网络下请求建立和/或建立第一私有通信网络服务的PDU会话。
进一步地，当允许应用数据流(traffic)从第一网络转移到第二网络时，允许承载所述应用数据流的PDU会话从第一网络转移到第二网络。
一种实施方式中，所述PDU会话可以包含以下一项或多项：私有通信服务的PDU会话、私有通信网络下建立的PDU会话、第一私有通信网络下建立的PDU会话。
一种实施方式中，所述终端可以包含至少以下之一：私有通信服务的终端、签约或注册私有通信网络的终端、签约或注册第一私有通信网络的终端。
一种实施方式中，所述应用可以包含：私有通信服务的应用、私有通信网络的应用、第一私有通信网络的应用。
步骤202：当满足预定条件时，终端向第一目标端发送第一信息；
其中，所述第一信息可以包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、切片的通信网络信息。
可以理解的是，当步骤201得到的判断结果为不满足该预定条件时，可以结束流程，或者返回步骤201继续判断是否满足该预定条件。
在本公开的一些实施例中，第一目标端可以为无线接入网(Radio Access Network，RAN)网元、核心网(Core Network，CN)网元、AMF、SMF、PCF，当然并不限于此。
进一步地，PDU会话的通信服务类型信息、终端的通信服务类型信息或切片的通信服务类型信息可以包括以下一项或多项：私有通信服务指示信息和公众通信服务指示信息。
进一步地，PDU会话的通信网络信息、终端的通信网络信息或切片的通信网络信息可以包括以下一项或多项：通信网络类型信息和通信网络标识。一种实施方式中，PDU会话的通信网络信息是建立PDU会话的网络的通信网络信息。一种实施方式中，终端的通信网络信息是终端签约或注册的网络的通信网络信息。进一步地，切片的通信网络信息是切片归属的网络的通信网络类型信息。
可选地，通信网络类型信息可以包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、类型B的私有通信网络。
可选地，通信网络标识可以是私有通信网络的标识或公众通信网络的标识。
示例性地，PDU会话是已有的建立在私有通信网络的会话，PDU会话的通信网络信息是建立的PDU会话的网络的通信网络信息。终端可以指示建立PDU会话的私有通信网络标识和/或建立PDU会话的通信网络类型是私有通信网络。进一步地，上述通信网络类型信息可以指示类型A的私有通信网络或类型B的私有通信网络。一种实施方式中，在在公众通信网络或其他私有通信网络下进行激活已经建立的PDU会话的用户面连接时，可以指示PDU会话的通信网络信息。
进一步地，终端的切片信息或PDU会话的切片信息可以包括以下一项或多项：私有通信网络切片信息、公众通信网络切片信息、私有通信网络切片信息和私有通信网络切片信息映射的公众通信网络切片信息；以及公众通信网络切片信息和公众通信网络切片信息映射的私有通信网络切片信息。
在本公开的另一些实施例中，可选地，私有通信网络切片信息可以包括以下一项或多项：允许私有通信网络切片信息、配置私有通信网络切片信息和签约私有通信网络切片信息。
在本公开的一些实施例中，可选地，私有通信网络切片信息可以包括以下一项或多项：私有通信服务指示信息、私有通信网络信息和私有通信网络切片标识信息(比如S-NSSAI、NSSAI)。进一步地，私有通信网络信息可以包括以下至少一项：类型A网络、类型B网络。
可以理解的是，在切换场景下，通过第一信息，可以帮助目标网络知道 终端的PDU会话是私有通信服务的PDU会话，需要采用归属路由(Homer routed)的方式，需要为终端根据PDU会话的私有通信网络切片信息选择归属网络功能(Home Network Function，H-NF)，例如：H-SMF、H-UPF，或者根据PDU会话映射的公众通信网络切片信息选择访问网络功能(Visited Network Function，V-NF)，例如：V-SMF、V-UPF。
参见图3，本公开实施例提供了一种数据处理方法，该方法的执行主体可以为第一网元，包括如下步骤301和302。
步骤301：第一网元判断是否满足预定条件；
可选的，第一网元可以包含至少以下之一：RAN网元、CN网元、AMF、SMF、PCF。
步骤302：当满足预定条件时，第一网元向第一目标端发送第一信息；
可选地，所述第一信息可以参见如图2所述的实施例中的描述，此处不再赘述。
可选地，预定条件可以包括以下一项或多项：终端从第一网络转移到第二网络。一种实施方式中，第一网络是公众通信网络，第二网络是私有通信网络；一种实施方式中，第一网络是私有通信网络，第二网络是公众通信网络；一种实施方式中，第一网络是第一私有通信网络，第二网络是第二私有通信网络。
在本公开的另一些实施例中，可选地，终端从第一网络转移到第二网络可以包括以下一项或多项：终端从第一网络切换到第二网络；终端从第一网络被重定向到私有通信网络；以及终端从第一网络移动到第二网络。
在本公开实施例中，通过第一信息可以帮助目标网络知道终端的PDU会话是私有通信服务的PDU会话，需要采用Homer routed的方式，需要为终端根据PDU会话的私有通信网络切片信息选择H-NF，例如：H-SMF、H-UPF；或者根据PDU会话映射的公众通信网络切片信息选择V-NF，例如：V-SMF、V-UPF。
参见图4，本公开实施例提供了一种数据处理方法，该方法的执行主体为第二网元，包括如下步骤401和402。
步骤401：接收第一信息；
可选地，第二网元可以包含至少以下之一：RAN网元、CN网元、AMF、SMF、PCF。
可选地，所述第一信息可参见如图2所示的实施例中的描述，此处不再赘述。
步骤402：根据第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
可选地，PDU会话的操作可以包括以下一项或多项：
私有通信网络相关的归属路由(Home Routed)方式的PDU会话操作；
根据所述第一信息为所述PDU会话选择第一私有通信网络的H-NF(例如：H-SMF、H-UPF)的操作；
根据所述第一信息为所述PDU会话选择第二网络的V-NF(例如：V-SMF、V-UPF)的操作；
删除所述PDU会话的第二网络的V-NF(例如：V-SMF、V-UPF)的操作；
在返回的PDU会话上下文中不包含公众通信服务的PDU会话上下文；
在返回的PDU会话上下文中不包含不允许切换的私有通信服务的PDU会话上下文。
进一步地，当终端从第一网络转移到第二网络时，PDU会话的操作包括以下一项或多项：
根据第一信息为PDU会话选择第一网络的H-NF(例如：H-SMF、H-UPF)的操作；
根据第一信息为PDU会话选择第二网络的V-NF(例如：V-SMF、V-UPF)的操作。
一种实施方式中，第一网络是公众通信网络，第二网络是私有通信网络；一种实施方式中，第一网络是私有通信网络，第二网络是公众通信网络；一种实施方式中，第一网络是第一私有通信网络，第二网络是第二私有通信网络。
进一步地，当终端从公众通信网络转移到私有通信网络时，PDU会话的操作包括以下一项或多项：
删除私有通信服务的PDU会话的公众通信网络的V-NF(例如：V-SMF、 V-UPF)；
在返回的PDU会话上下文中不包含公众通信服务的PDU会话上下文。
进一步地，当终端从第二私有通信网络转移到第一私有通信网络时，PDU会话的操作包括以下一项或多项：
删除第一私有通信网络服务的PDU会话的第二私有通信网络的V-NF(例如：V-SMF、V-UPF)；
在返回的PDU会话上下文中不包含第二私有通信网络服务的PDU会话上下文。
进一步地，根据第一信息为PDU会话选择私有通信网络的H-NF(例如：H-SMF、H-UPF)的操作可以包括以下一项或多项：
当第一信息指示PDU会话的通信服务类型信息是私有通信服务时，根据PDU会话的切片信息映射的归属私有通信网络的切片信息选择H-NF(例如：H-SMF、H-UPF)；
当第一信息指示PDU会话的通信服务类型是公共通信服务时，根据PDU会话的切片信息映射的归属公共通信网络的切片信息选择H-NF(例如：H-SMF、H-UPF)；
当第一信息指示PDU会话是第一网络的PDU会话时，根据PDU会话的切片信息映射的第一网络的切片信息选择H-NF(例如：H-SMF、H-UPF)。
一种实施方式中，终端的访问网络是公众通信网络或第二私有通信网络，归属网络是私有通信网络或第一私有通信网络时，根据第一信息为PDU会话选择私有通信网络的H-NF(例如：H-SMF、H-UPF)。
一种实施方式中，第一网络是公众通信网络，第二网络是私有通信网络；一种实施方式中，第一网络是私有通信网络，第二网络是公众通信网络；一种实施方式中，第一网络是第一私有通信网络，第二网络是第二私有通信网络。
一种实施方式中，终端可以是第一私有通信网络的终端。进一步地，第一私有通信网络的终端可以包含至少以下之一：签约了第一私有通信网络的终端、注册了第一私有通信网络的终端、类型A的第一私有通信网络的终端。
一种实施方式中，PDU会话是第一私有通信网络的PDU会话。进一步 地，第一私有通信网络的PDU会话可以包含至少以下之一：在第一私有通信网络建立的PDU会话、在其他网络建立PDU会话且该PDU会话通过归属地漫游的方式接入第一私有通信网络。
在一种示例性的实施方式中，当确认PDU会话是私有通信网络中建立的PDU会话时，可以采用私有通信网络相关的Home Routed方式的PDU会话操作。其中Home Routed方式可以是指为PDU会话选择私有通信网络中的H-SMF。H-SMF再选择H-UPF。可以理解的是，私有通信服务的PDU会话在终端、RAN网元、V-UPF和H-UPF上建立的数据通道。通过私有通信服务的PDU会话，终端可以访问的私有通信网络域名(Domain Name，DN)。
在另一种示例性的实施方式中，请求建立的PDU会话是私有通信业务的PDU会话，可以根据第一信息中的私有通信网络切片信息为PDU会话选择私有通信网络内的SMF作为H-SMF；以及根据第一信息中的公众通信网络切片信息选择公众通信网络的SMF作为V-SMF。V-SMF选择V-UPF；H-SMF选择H-UPF。
在又一种示例性的实施方式中，PDU会话是已有私有通信业务的PDU会话，当终端转移到公众通信网络时，根据第一信息中的映射的公众通信网络切片信息为PDU会话选择当前公众通信网络中的V-SMF；终端移入公众通信网络可以包含以下至少一项：终端切换到公众通信网络，终端重定向到公众通信网络，终端移动到公众通信网络。
在又一种示例性的实施方式中，PDU会话是已有私有通信业务的PDU会话，当终端转移到私有通信网络时，根据第一信息中的映射的公众通信网络切片信息为PDU会话删除当前公众通信网络中的V-SMF。
在本公开实施例中，通过第一信息可以帮助目标网络知道终端的PDU会话是私有通信服务的PDU会话，需要采用Homer routed的方式，需要为终端根据PDU会话的私有通信网络切片信息选择H-NF，例如：H-SMF、H-UPF，或者根据PDU会话映射的公众通信网络切片信息选择V-NF，例如：V-SMF、V-UPF。
参见图5，本公开实施例提供了一种数据处理方法，该方法的执行主体为第三网元，包括如下步骤501和502。
步骤501：根据终端的能力、终端的签约信息、第一网络的通信网络信息、第二网络的通信网络信息中的一项或多项，确定第二信息；
可选地，第三网元可以包含至少以下之一：RAN网元、CN网元、AMF、SMF、PCF。
可选地，第一网络的通信网络信息或第二网络的通信网络信息可以包括以下一项或多项：通信网络类型信息和通信网络标识。进一步地，通信网络类型信息可以包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、类型B的私有通信网络。进一步地，通信网络标识可以是私有通信网络的标识或公众通信网络的标识。
步骤502：向第二目标端发送第二信息；其中第二信息可以包括以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流(traffic)从第一网络转移到第二网络；
一种实施方式中，第一网络是公众通信网络，第二网络是私有通信网络；一种实施方式中，第一网络是私有通信网络，第二网络是公众通信网络；一种实施方式中，第一网络是第一私有通信网络，第二网络是第二私有通信网络。
在本公开的一些实施例中，第二目标端可以为至少以下之一：RAN网元、终端、CN网元。一种实施方式下，AMF将第二信息发送给SMF。另一种实施方式中，在切换的过程中，源RAN网元将第二信息发送给目标RAN网元；在切换的过程中，源CN网元将第二信息发送给目标CN网元。
进一步地，是否允许终端在第二网络下发起第一网络的服务可以包括以下一项或多项：是否允许终端在公众通信网络下发起私有通信网络服务；是否允许终端在公众通信网络或第二私有通信网络下发起第一私有通信网络服务。一种实施方式中，在第二网络下发起第一网络的服务是指在第二网络下发起关于第一网络的服务的PDU会话建立请求。
进一步地，PDU会话可以包含以下一项或多项：私有通信服务的PDU会话、私有通信网络下建立的PDU会话、第一私有通信网络下建立的PDU 会话。
进一步地，是否允许PDU会话从第一网络转移到第二网络可以包括以下一项或多项：
是否允许将在第一网络下建立的PDU会话切换到第二网络；
是否允许在第一网络下请求激活和/或激活第二网络下建立的PDU会话(比如用户面连接)；
是否允许在公众通信网络下请求建立和/或建立的私有通信服务的PDU会话；
是否允许在第二私有通信网络下请求建立和/或建立第一私有通信网络服务的PDU会话。
进一步地，当允许应用数据流(traffic)从第一网络转移到第二网络时，允许承载所述应用数据流的PDU会话从第一网络转移到第二网络。
一种实施方式中，不允许类型B的终端、类型B的终端的私有通信服务的PDU会话和/或类型B的终端的私有通信服务的应用数据流(traffic)转移到公众通信网络。
可以理解的是，私有通信服务的PDU会话，可能允许(也可能不允许)转移到公众通信网络。公众通信服务的PDU会话可能不允许转移到私有通信网络。通过在本公开实施例，第二信息一方面可以帮助RAN网元或CN网元决定是否将终端和/或终端的私有通信服务的PDU会话转移到公众通信网络；另一方面可以帮助终端决定是否能够在公众通信网络下发起私有通信服务；是否允许终端的私有通信服务的PDU会话转移到公众通信网络的信息和/或是否允许终端的私有通信服务的应用数据流(traffic)转移到公众通信网络的信息，保障私有通信服务的服务私密性和服务体验。
参见图6，本公开实施例提供了一种数据处理方法，该方法的执行主体可以为终端或网络侧网元，包括如下步骤601和602。
步骤601：接收第二信息；
在一种示例性的实施方式中，终端从RAN网元发送的第二信息。
步骤602：根据第二信息确定PDU会话操作；
其中，第二信息可参见如图5所示的实施例中的描述，此处不再赘述。 可选地，PDU会话操作可以包括以下一项或多项：
是否将在第一网络下建立的PDU会话切换到第二网络；
是否在第一网络下请求激活和/或激活第二网络下建立的PDU会话(比如用户面连接)；
是否在公众通信网络下请求建立和/或建立的私有通信服务的PDU会话；
是否在第二私有通信网络下请求建立和/或建立第一私有通信网络服务的PDU会话。
在本公开实施例中，私有通信服务的PDU会话，可能允许(也可能不允许)转移到公众通信网络。公众通信服务的PDU会话可能不允许转移到私有通信网络。通过在本公开实施例，第二信息一方面可以帮助RAN网元或CN网元决定是否将终端和/或终端的私有通信服务的PDU会话转移到公众通信网络；另一方面可以帮助终端决定是否能够在公众通信网络下发起私有通信服务；是否允许终端的私有通信服务的PDU会话转移到公众通信网络的信息和/或是否允许终端的私有通信服务的应用数据流(traffic)转移到公众通信网络的信息，保障私有通信服务的服务私密性和服务体验。
示例一：PDU会话建立
本示例主要描述私有通信网络的终端在公众通信网络下发起私有通信业务相关的PDU会话的过程。请参阅图7，PDU会话建立的流程包括以下步骤1至15。
步骤1：终端向AMF发送非接入层(Non access stratum，NAS)消息。NAS消息中包含PDU会话建立请求消息。
可选地，终端根据第二信息确定可以在公众通信网络发起私有通信业务相关的PDU会话建立。进一步地，第二信息可参见如图5所示实施例中的描述，此处不再赘述。
可选地，PDU会话建立请求消息或NAS消息中包含第一信息。进一步地，第一信息可参见如图2所示实施例中的描述，比如可以包含以下至少一项：公众通信网络切片信息；映射的私有通信网络切片信息、通信服务类型信息(指示私有通信服务)。
步骤2：AMF收到PDU会话建立请求消息。
AMF可以根据第一信息(例如：公众通信网络切片信息)选择V-SMF。或者，AMF可以根据第一信息(例如：映射的私有通信网络切片信息)选择H-SMF。或者，AMF可以根据第一信息(例如：公众通信网络切片信息和私有通信服务指示信息)映射得到私有通信网络切片信息，并根据私有通信网络切片信息选择H-SMF。然后AMF可以向选择的V-SMF发送创建会话管理(Session Management，SM)上下文的请求消息。
可以理解的是，AMF选择SMF的方式可以是直接选择或者通过NSSF选择。
可选地，创建SM上下文的请求消息中包含以下之一：第一信息、H-SMF的信息。
步骤3：V-SMF选择V-UPF。V-SMF向选择的V-SMF发送N4会话建立。
步骤4：V-SMF向H-SMF发送创建SM上下文请求。
可选地，所述创建SM上下文请求消息中包含以下之一：第一信息，可参见图2所示的实施例中的描述，在此不再敷述。
步骤5：H-SMF注册终端到统一数据管理(Unified Data Manager，UDM)。H-SMF还可以获取、订购终端的签约数据。
步骤6：H-SMF从PCF获取终端的策略。
步骤7：H-SMF向选择的H-SMF发送N4会话建立。
步骤8：H-SMF向V-SMF返回SM会话建立响应。
步骤9：V-SMF向AMF发送N1N2消息。N1N2消息中包含PDU会话建立接受的NAS消息。
步骤10：AMF向RAN网元发送PDU会话资源建立请求消息。N1N2消息中包含PDU会话建立的NAS消息。
步骤11：RAN网元向终端配置无线资源并向终端发送PDU会话建立消息。
终端向RAN网元返回RRC响应。
步骤12：RAN网元向AMF返回PDU会话资源建立响应。
步骤13：AMF向V-SMF发送SM上下文更新请求。
步骤14：V-SMF向V-UPF发送N4会话更新。
步骤15：V-SMF向AMF发送SM上下文更新响应。
可以理解的是，私有通信网络的终端可能同时具有私有通信网络业务和公众通信网络业务。当私有通信网络终端接入公众通信网络时，私有通信业务的PDU会话需要通过公众通信网络接入私有通信网络(例如：通过V-SMF连接H-SMF，通过V-UPF连接H-UPF)来访问私有DN。公众通信业务的PDU会话可以直接通过公众通信网络(例如：V-SMF，V-UPF)就可以访问公众DN。同一终端下不同的PDU会话的建立过程是不同的。因此，通过终端提供第一信息，网络可以决定不同的PDU会话操作。
示例二：终端从私有通信网络切换到公众通信网络
示例主要描述私有通信网络的终端从私有通信网络切换到公众通信网络的过程。请参阅图8，如图8所示，包括以下步骤：1至21。
步骤1：当切换事件发生时，源RAN网元发起N2切换。
步骤2：RAN网元向源网络发送N2切换请求。
步骤3：源AMF向H-SMF发送PDU会话上下文请求消息。H-SMF向源AMF返回PDU会话上下文响应。
可选地，源AMF向H-SMF发送第一信息。
第一信息可参见如图2所示的实施例中的描述，例如：第一信息可以包含以下至少一项：私有通信网络到公众通信网络切换指示、公众通信网络的标识。对不允许切换到指定公众通信网络的PDU会话，H-SMF可以执行以下至少一项：不返回对应的PDU会话的上下文、删除PDU会话的上下文、释放PDU会话的用户面连接、挂起PDU会话。
可选地，PDU会话上下文响应消息中包含PDU会话的第一信息，该第一信息的描述可参照上述方法实施例，例如：第一信息可以包含以下至少一项：公众通信网络切片信息、映射的私有通信网络切片信息。
步骤4：源AMF向目标AMF发送创建上下文请求。
可选地，创建上下文请求消息中可以包含PDU会话的第一信息。该第一信息的描述可参照上述方法实施例，例如：第一信息可以包含以下至少一项：公众通信网络切片信息、映射的私有通信网络切片信息。
步骤5：目标AMF收到第一信息。
AMF根据第一信息(例如：PDU会话的公众通信网络切片信息)选择V-SMF。
AMF向选择的V-SMF发送创建SM上下文请求。
AMF选择SMF的方式可以是直接选择或者通过NSSF选择。
步骤6：V-SMF选择V-UPF。
V-SMF向选择的V-UPF发送N4会话建立。
步骤7：V-SMF向目标AMF发送创建SM上下文响应。
步骤8：目标AMF向目标RAN网元发送切换请求。
步骤9：目标RAN网元向目标AMF发送切换请求确认。
步骤10：目标AMF向V-SMF发送更新SM上下文请求。请求更新PDU会话的N3接口RAN侧地址。
步骤11：V-SMF向V-UPF发送N4会话更新。
步骤12：V-SMF向目标AMF返回更新SM上下文响应。
步骤13：目标AMF向源AMF向发送创建上下文响应。
步骤14：源AMF向源RAN网元发送切换命令。
步骤15：RAN网元向终端发送RRC消息。RRC消息中包含切换命令。
步骤16：终端接入目标RAN网元。
步骤17：目标RAN网元向目标AMF发送切换通知。
步骤18：目标AMF向源AMF发送切换完成。
步骤19：源AMF向H-SMF发送更新SM上下文请求消息。
由于插入中间V-UPF，所述消息中请求更新H-UPF的下行AN通道信息。
步骤20：H-SMF向H-UPF发送N4会话修改。
步骤21：H-SMF向源AMF发送更新SM上下文响应。
可以理解的是，切换完成后，终端与DN之间数据通过目标RAN网元、V-UPF和H-UPF之间的数据通道进行传送。终端与H-SMF之间的会话管理信令通过目标RAN网元、AMF和V-SMF之间进行传送。
示例三：从公众通信网络切换到私有通信网络
本示例主要描述私有通信网络的终端从公众通信网络切换回私有通信网 络的过程。请参阅图9，如图9所示，包括以下步骤：1至18。
步骤1：当切换事件发生时，源RAN网元发起N2切换。
步骤2：RAN网元向源网络发送N2切换请求。
步骤3：源AMF选择目标AMF。源AMF向目标AMF发送创建上下文请求。
可选地，创建上下文请求中可以包含PDU会话的第一信息。
该第一信息可参照如图2所示实施例中的描述。例如：第一信息可以包括以下至少一项：PDU会话的公众通信网络切片信息、PDU会话的映射的私有通信网络切片信息、PDU会话的通信服务类型信息(私有通信服务或公众通信服务)。
步骤4：目标AMF向H-SMF发送更新SM上下文请求。
步骤5：目标AMF向目标RAN网元发送切换请求。
步骤6：目标RAN网元向目标AMF发送切换请求确认。
步骤7：目标AMF向H-SMF发送更新SM上下文请求。请求更新PDU会话的N3接口RAN侧地址。
步骤8：H-SMF向H-UPF发送N4会话更新。
步骤9：H-SMF向目标AMF返回更新SM上下文响应。
步骤10：目标AMF向源AMF向发送创建上下文响应。
步骤11：源AMF向源RAN网元发送切换命令。
步骤12：RAN网元向终端发送RRC消息。RRC消息中包含切换命令。
步骤13：终端接入目标RAN网元。
步骤14：目标RAN网元向目标AMF发送切换通知。
步骤15：目标AMF向源AMF发送切换完成。
步骤16：源AMF向V-SMF发送释放SM上下文请求。
步骤17：V-SMF向V-UPF发送N4会话释放。
步骤18：V-SMF向源AMF发送释放SM上下文响应。
切换完成后，终端与DN之间数据通过目标RAN网元和H-UPF之间的数据通道进行传送。终端与H-SMF之间的会话管理信令通过目标RAN网元和AMF之间进行传送。
示例四：在公众通信网络请求激活在私有通信网络建立的PDU会话
本示例主要描述私有通信网络的终端移入公众通信网络发起位置更新，并请求激活已有的私有通信网络的PDU会话的过程。请参阅图10，如图10所示，包括以下步骤：1至14。
步骤1：终端通过RAN网元向目标AMF发送注册请求消息，请求类型可以为注册移动更新。可选的，所述注册请求中终端请求激活在私有通信网络建立的PDU会话的用户面连接。
可选地，终端根据第二信息确定可以在公众通信网络请求激活私有通信业务相关的PDU会话。进一步地，第二信息可参照如图5所示实施例中的描述，此处不再赘述。
步骤2：目标AMF向源AMF发送终端上下文传送消息。
步骤3：源AMF向H-SMF请求PDU会话上下文。
步骤4：源AMF向目标AMF发送终端上下文传送响应消息。
可选地，终端上下文传送响应消息中包含PDU会话的第一信息。该第一信息可参照如图2所示的实施例中的描述。例如：第一信息可以包括以下至少一项：公众通信网络切片信息、映射的私有通信网络切片信息、PDU会话的通信服务类型信息(私有通信服务或公众通信服务)。
步骤5：目标AMF向UDM发起关于终端的注册、说明终端的服务AMF变更为目标AMF。
可选地，目标AMF还可以获取和/或订购终端的签约信息。
步骤6：目标AMF收到第一信息。
可选地，AMF根据第一信息(比如PDU会话的公众通信网络切片信息)选择V-SMF。
AMF向选择的V-SMF发送创建SM上下文请求。
AMF选择SMF的方式可以是直接选择或者通过NSSF选择。
步骤7：V-SMF选择V-UPF。
可选地，V-SMF向选择的V-UPF发送N4会话建立。
步骤8：V-SMF向目标AMF发送创建SM上下文响应。
步骤9：目标AMF向源AMF发送注册完成通知。由于插入中间V-UPF， 所述消息中请求更新H-UPF的下行AN通道信息。
步骤10：源AMF向H-SMF发送更新SM上下文请求消息。
可选地，由于插入中间V-UPF，所述消息中请求更新H-UPF的下行接入网通道信息。
步骤11：H-SMF向H-UPF发送N4会话修改。
步骤12：H-SMF向源AMF发送更新SM上下文响应。
步骤13：目标AMF向终端发送注册接受消息。
步骤14：终端向目标AMF返回注册完成消息。
可以理解的是，终端位置更新到公众通信网络并激活私有通信服务的PDU会话后，终端与DN之间数据通过目标RAN网元和H-UPF之间的数据通道进行传送。终端与H-SMF之间的会话管理信令通过目标RAN网元和AMF之间进行传送。
示例五：私网内PDU会话建立
本示例主要描述私有通信网络的终端在私有通信网络下发起私有通信业务相关的PDU会话的过程。请参阅图11，PDU会话建立的流程包括以下步骤：1至12。
步骤1：终端向AMF发送NAS消息。NAS消息中包含PDU会话建立请求消息。
可选地，PDU会话建立请求消息或NAS消息中包含第一信息。进一步地，第一信息如图2实施例所述，比如可以包含以下至少一项：私有通信网络切片信息、映射的公众通信网络切片信息、通信服务类型信息(指示私有通信服务)。
步骤2：AMF可以根据第一信息(例如：私有通信网络切片信息)选择SMF。然后AMF可以向选择的SMF发送创建会话管理上下文的请求消息。
可以理解的是，AMF选择SMF的方式可以是直接选择或者通过NSSF选择。
可选地，创建SM上下文的请求消息中包含以下之一：第一信息。
步骤3：SMF选择UPF。SMF向选择的SMF发送N4会话建立。
步骤4：SMF注册终端到统一数据管理(Unified Data Manager，UDM)。 SMF还可以获取、订购终端的签约数据。
步骤5：SMF从PCF获取终端的策略。
步骤6：SMF向AMF发送N1N2消息。N1N2消息中包含PDU会话建立接受的NAS消息。
所述NAS消息或PDU会话建立接受消息中包含第二信息。
进一步地，第二信息参见如图5所示实施例中的描述，此处不再赘述。
步骤7：AMF向RAN网元发送PDU会话资源建立请求消息。N1N2消息中包含PDU会话建立的NAS消息。
所述PDU会话资源建立请求消息中包含第二信息。
进一步地，第二信息参见如图5所示实施例中的描述，此处不再赘述。
步骤8：RAN网元向终端配置无线资源并向终端发送PDU会话建立消息。
终端向RAN网元返回RRC响应。
步骤9：RAN网元向AMF返回PDU会话资源建立响应。
步骤10：AMF向MF发送SM上下文更新请求。
步骤11：SMF向UPF发送N4会话更新。
步骤12：SMF向AMF发送SM上下文更新响应。
通过本公开实施例，在PDU会话建立过程中，终端或RAN网元获得PDU会话是否允许转移到公众通信网络或其他私有通信网络的信息。
本公开实施例中还提供了一种第一设备，第一设备可以为终端或第一网元，由于第一设备解决问题的原理与本公开实施例中数据处理方法相似，因此该第一设备的实施可以参见方法的实施，重复之处不再敷述。
参见图12，该第一设备1200包括：
第一判断模块1201，用于判断是否满足预定条件；
第一发送模块1202，用于当满足所述预定条件时，向第一目标端发送第一信息；
其中，所述第一信息可以包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
可选地，所述PDU会话的通信服务类型信息、终端的通信服务类型信息或切片的通信服务类型信息可以包括以下一项或多项：私有通信服务指示信息和公众通信服务指示信息。
可选地，所述PDU会话的通信网络信息、终端的通信网络信息或切片的通信网络信息可以包括以下一项或多项：通信网络类型信息和通信网络标识。
可选地，所述通信网络类型信息可以包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、以及类型B的私有通信网络。
可选地，所述终端的切片信息或PDU会话的切片信息可以包括以下一项或多项：私有通信网络切片信息；公众通信网络切片信息；私有通信网络切片信息和私有通信网络切片信息映射的公众通信网络切片信息；以及公众通信网络切片信息和公众通信网络切片信息映射的私有通信网络切片信息。
可选地，所述终端的私有通信网络切片信息可以包括以下一项或多项：允许私有通信网络切片信息、配置私有通信网络切片信息和签约私有通信网络切片信息。
可选地，当所述第一设备为终端时，所述第一设备还可以包括：
第一获取模块，用于获取第二信息，所述第二信息包括以下一项或多项：是否允许所述终端在第二网络下发起第一网络的服务；是否允许PDU会话从第一网络转移到第二网络；是否允许应用数据流traffic从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
可选地，当所述第一设备为终端时，所述预定条件可以包括以下一项或多项：
允许所述终端在第二网络下发起第一网络的服务；
允许PDU会话从第一网络转移到第二网络；
允许应用traffic从第一网络转移到第二网络；
所述终端在第二网络下发起PDU会话建立；
所述终端在第二网络下请求激活PDU会话；
所述终端在第一网络和第二网络之间转移；所述终端需要接入到第一私有通信网络连接的DN；以及，
所述终端需要发起私有通信服务的PDU会话建立；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
可选地，当所述第一设备为第一网元时，所述预定条件可以包括以下一项或多项：
终端从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
本公开实施例提供的第一设备，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种第二网元，由于第二网元解决问题的原理与本公开实施例中数据处理方法相似，因此该第二网元的实施可以参见方法的实施，重复之处不再敷述。
参见图13，第二网元1300包括：
第一接收模块1301，用于接收第一信息；
第一确定模块1302，用于根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
其中，所述第一信息可以包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
可选地，所述PDU会话的通信服务类型信息、终端的通信服务类型信息或切片的通信服务类型信息可以包括以下一项或多项：私有通信服务指示信息和公众通信服务指示信息。
可选地，所述PDU会话的通信网络信息、终端的通信网络信息或切片的 通信网络信息可以包括以下一项或多项：通信网络类型信息和通信网络标识。
可选地，所述通信网络类型信息可以包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、以及类型B的私有通信网络。
可选地，所述终端的切片信息或PDU会话的切片信息可以包括以下一项或多项：私有通信网络切片信息；公众通信网络切片信息；私有通信网络切片信息和私有通信网络切片信息映射的公众通信网络切片信息；以及公众通信网络切片信息和公众通信网络切片信息映射的私有通信网络切片信息。
可选地，所述私有通信网络切片信息可以包括以下一项或多项：允许私有通信网络切片信息、配置私有通信网络切片信息和签约私有通信网络切片信息。
可选地，所述PDU会话的操作可以包括以下一项或多项：
私有通信网络相关的归属路由Home Routed方式的PDU会话操作；
根据所述第一信息为所述PDU会话选择第一私有通信网络的H-NF(例如：H-SMF、H-UPF)的操作；
根据所述第一信息为所述PDU会话选择第二网络的V-NF(例如：V-SMF、V-UPF)的操作；
删除所述PDU会话的第二网络的V-NF(例如：V-SMF、V-UPF)的操作；
在返回的PDU会话上下文中不包含公众通信服务的PDU会话上下文；以及
在返回的PDU会话上下文中不包含不允许切换的私有通信服务的PDU会话上下文。
本公开实施例提供的第二网元，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种第三网元，由于第三网元解决问题的原理与本公开实施例中数据处理方法相似，因此该第三网元的实施可以参见方法的实施，重复之处不再敷述。
参见图14，第三网元1400包括：
第二确定模块1401，用于根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；
第二发送模块1402，用于向第二目标端发送所述第二信息；
其中，所述第二信息可以包含以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
本公开实施例提供的第三网元，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例中还提供了一种终端，由于终端解决问题的原理与本公开实施例中数据处理方法相似，因此该终端的实施可以参见方法的实施，重复之处不再敷述。
参见图15，终端1500包括：
第二接收模块1501，用于接收第二信息；
第三确定模块1502，用于根据所述第二信息确定PDU会话操作；
其中，所述第二信息可以包含以下一项或多项：
是否允许终端在第二网络下发起第一网络的服务；
是否允许PDU会话从第一网络转移到第二网络；
是否允许应用数据流从第一网络转移到第二网络；
其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
可选地，所述PDU会话操作可以包括以下一项或多项：
是否将在所述第一网络下建立的PDU会话切换到所述第二网络；
是否在所述第一网络下请求激活和/或激活所述第二网络下建立的PDU会话；
是否在公众通信网络下请求建立和/或建立的私有通信服务的PDU会话；
是否在第二私有通信网络下请求建立和/或建立第一私有通信网络服务 的PDU会话。
本公开实施例提供的终端，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
如图16所示，图16所示的终端1600包括：至少一个处理器1601、存储器1602、至少一个网络接口1604和用户接口1603。终端1000中的各个组件通过总线系统1005耦合在一起。可理解，总线系统1605用于实现这些组件之间的连接通信。总线系统1605除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图16中将各种总线都标为总线系统1605。
其中，用户接口1603可以包括显示器、键盘或者点击设备(例如，鼠标，轨迹球(trackball)、触感板或者触摸屏等。
可以理解，本公开实施例中的存储器1602可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本公开实施例描述的系统和方法的存储器1602旨在包括但不限于这些和任意其它适合类型的存储器。
在一些实施方式中，存储器1602保存了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：操作系统16021和应用程序16022。
其中，操作系统16021，包含各种系统程序，例如框架层、核心库层、驱动层等，用于实现各种基础业务以及处理基于硬件的任务。应用程序16022，包含各种应用程序，例如媒体播放器(Media Player)、浏览器(Browser)等，用于实现各种应用业务。实现本公开实施例方法的程序可以包含在应用程序16022中。
在本公开的一些实施例中，通过调用存储器1602保存的程序或指令，具体的，可以是应用程序16022中保存的程序或指令，执行时实现以下步骤：判断是否满足预定条件；当满足所述预定条件时，向第一目标端发送第一信息；其中，所述第一信息包括以下一项或多项：协议数据单元PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
在本公开的另一些实施例中，通过调用存储器1602保存的程序或指令，具体的，可以是应用程序16022中保存的程序或指令，执行时实现以下步骤：接收第二信息；根据所述第二信息确定PDU会话操作；其中，所述第二信息包括以下一项或多项：是否允许终端在第二网络下发起第一网络的服务；是否允许PDU会话从第一网络转移到第二网络；是否允许应用数据流从第一网络转移到第二网络；其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
本公开实施例提供的终端，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
参见图17，本公开实施例提供了另一种网络侧网元1100，包括：处理器1701、收发机1702、存储器1703和总线接口。
其中，处理器1701可以负责管理总线架构和通常的处理。存储器1103可以存储处理器1701在执行操作时所使用的数据。
本公开实施例中，网络侧网元1700还可以包括：存储在存储器1703上并可在处理器1101上运行的程序。
在本公开的一些实施例中，该程序被处理器1701执行时实现：判断是否满足预定条件；当满足所述预定条件时，向第一目标端发送第一信息；其中，所述第一信息包括以下一项或多项：协议数据单元PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
在本公开的另一些实施例中，该程序被处理器1701执行时实现：接收第一信息；根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
在本公开的又一些实施例中，该程序被处理器1701执行时实现：根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；向第二目标端发送所述第二信息；其中，所述第二信息包括以下一项或多项：是否允许终端在第二网络下发起第一网络的服务；是否允许PDU会话从第一网络转移到第二网络；是否允许应用数据流从第一网络转移到第二网络；其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
在图17中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1701代表的一个或多个处理器和存储器1703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，本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机1702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。
本公开实施例提供的网络侧网元，可以执行上述方法实施例，其实现原 理和技术效果类似，本实施例此处不再赘述。
结合本公开公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本公开所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本公开的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本公开的具体实施方式而已，并不用于限定本公开的保护范围，凡在本公开的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本公开的保护范围之内。
本领域内的技术人员应明白，本公开实施例可提供为方法、系统、或计算机程序产品。因此，本公开实施例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，本公开实施例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、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开实施例是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图 中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开实施例进行各种改动和变型而不脱离本公开的范围。这样，倘若本公开实施例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 (26)

  1. 一种数据处理方法，应用于第一设备，所述第一设备为终端或第一网元，其中，所述方法包括：
    判断是否满足预定条件；
    当满足所述预定条件时，向第一目标端发送第一信息；
    其中，所述第一信息包括以下一项或多项：协议数据单元PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
  2. 根据权利要求1所述的方法，其中，所述PDU会话的通信服务类型信息、终端的通信服务类型信息或切片的通信服务类型信息包括以下一项或多项：私有通信服务指示信息和公众通信服务指示信息。
  3. 根据权利要求1所述的方法，其中，所述PDU会话的通信网络信息、终端的通信网络信息或切片的通信网络信息包括以下一项或多项：通信网络类型信息和通信网络标识。
  4. 根据权利要求3所述的方法，其中，所述通信网络类型信息包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、以及类型B的私有通信网络。
  5. 根据权利要求1所述的方法，其中，所述终端的切片信息或PDU会话的切片信息包括以下一项或多项：
    私有通信网络切片信息；公众通信网络切片信息；私有通信网络切片信息和私有通信网络切片信息映射的公众通信网络切片信息；以及公众通信网络切片信息和公众通信网络切片信息映射的私有通信网络切片信息。
  6. 根据权利要求5所述的方法，其中，所述私有通信网络切片信息包括以下一项或多项：允许私有通信网络切片信息、配置私有通信网络切片信息和签约私有通信网络切片信息。
  7. 根据权利要求1所述的方法，其中，当所述第一设备为终端时，在所述判断是否满足预定条件之前，所述方法还包括：
    获取第二信息，所述第二信息包括以下一项或多项：是否允许所述终端在第二网络下发起第一网络的服务；是否允许PDU会话从第一网络转移到第二网络；是否允许应用数据流traffic从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  8. 根据权利要求1至7中任一项所述的方法，其中，当所述第一设备为终端时，所述预定条件包括以下一项或多项：
    允许所述终端在第二网络下发起第一网络的服务；
    允许PDU会话从第一网络转移到第二网络；
    允许应用traffic从第一网络转移到第二网络；
    所述终端在第二网络下发起PDU会话建立；
    所述终端在第二网络下请求激活PDU会话；
    所述终端在第一网络和第二网络之间转移；
    所述终端需要接入到第一私有通信网络连接的数据网络DN；以及，
    所述终端需要发起私有通信服务的PDU会话建立；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  9. 根据权利要求1至7中任一项所述的方法，其中，当所述第一设备为第一网元时，所述预定条件包括以下一项或多项：
    终端从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  10. 一种数据处理方法，应用于第二网元，其中，所述方法包括：
    接收第一信息；
    根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
    其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
  11. 根据权利要求10所述的方法，其中，所述PDU会话的通信服务类型信息、终端的通信服务类型信息或切片的通信服务类型信息包括以下一项或多项：私有通信服务指示信息和公众通信服务指示信息。
  12. 根据权利要求10所述的方法，其中，所述PDU会话的通信网络信息、终端的通信网络信息或切片的通信网络信息包括以下一项或多项：通信网络类型信息和通信网络标识。
  13. 根据权利要求12所述的方法，其中，所述通信网络类型信息包括以下一项或多项：私有通信网络、公众通信网络、类型A的私有通信网络、以及类型B的私有通信网络。
  14. 根据权利要求10所述的方法，其中，所述终端的切片信息或PDU会话的切片信息包括以下一项或多项：
    私有通信网络切片信息；公众通信网络切片信息；私有通信网络切片信息和私有通信网络切片信息映射的公众通信网络切片信息；以及公众通信网络切片信息和公众通信网络切片信息映射的私有通信网络切片信息。
  15. 根据权利要求14所述的方法，其中，所述私有通信网络切片信息包括以下一项或多项：允许私有通信网络切片信息、配置私有通信网络切片信息和签约私有通信网络切片信息。
  16. 根据权利要求10至15中任一项所述的方法，其中，所述PDU会话的操作包括以下一项或多项：
    私有通信网络相关的归属路由Home Routed方式的PDU会话操作；
    根据所述第一信息为所述PDU会话选择第一私有通信网络的归属网络功能H-NF的操作；
    根据所述第一信息为所述PDU会话选择第二网络的访问网络功能V-NF的操作；
    删除所述PDU会话的第二网络的V-NF的操作；
    在返回的PDU会话上下文中不包含公众通信服务的PDU会话上下文；以及
    在返回的PDU会话上下文中不包含不允许切换的私有通信服务的PDU会话上下文。
  17. 一种数据处理方法，应用于第三网元，其中，所述方法包括：
    根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；
    向第二目标端发送所述第二信息；
    其中，所述第二信息包括以下一项或多项：
    是否允许终端在第二网络下发起第一网络的服务；
    是否允许PDU会话从第一网络转移到第二网络；
    是否允许应用数据流从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  18. 一种数据处理方法，应用于终端，其中，所述方法包括：
    接收第二信息；
    根据所述第二信息确定PDU会话操作；
    其中，所述第二信息包括以下一项或多项：
    是否允许终端在第二网络下发起第一网络的服务；
    是否允许PDU会话从第一网络转移到第二网络；
    是否允许应用数据流从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  19. 根据权利要求18所述的方法，其中，所述PDU会话操作包括以下一项或多项：
    是否将在所述第一网络下建立的PDU会话切换到所述第二网络；
    是否在所述第一网络下请求激活和/或激活所述第二网络下建立的PDU 会话；
    是否在公众通信网络下请求建立和/或建立的私有通信服务的PDU会话；
    是否在第二私有通信网络下请求建立和/或建立第一私有通信网络服务的PDU会话。
  20. 一种第一设备，其中，所述第一设备为终端或第一网元，包括：
    第一判断模块，用于判断是否满足预定条件；
    第一发送模块，用于当满足所述预定条件时，向第一目标端发送第一信息；
    其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
  21. 一种第二网元，包括：
    第一接收模块，用于接收第一信息；
    第一确定模块，用于根据所述第一信息，确定终端的PDU会话的操作和/或确定终端的注册操作；
    其中，所述第一信息包括以下一项或多项：PDU会话的通信服务类型信息、PDU会话的通信网络信息、PDU会话的切片信息、终端的通信服务类型信息、终端的通信网络信息、终端的切片信息、切片的通信服务类型信息、以及切片的通信网络信息。
  22. 一种第三网元，包括：
    第二确定模块，用于根据终端的能力、终端的签约信息、第一网络的通信网络信息和第二网络的通信网络信息中的一项或多项，确定第二信息；
    第二发送模块，用于向第二目标端发送所述第二信息；
    其中，所述第二信息包括以下一项或多项：
    是否允许终端在第二网络下发起第一网络的服务；
    是否允许PDU会话从第一网络转移到第二网络；
    是否允许应用数据流从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络； 或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  23. 一种终端，包括：
    第二接收模块，用于接收第二信息；
    第三确定模块，用于根据所述第二信息确定PDU会话操作；
    其中，所述第二信息包括以下一项或多项：
    是否允许终端在第二网络下发起第一网络的服务；
    是否允许PDU会话从第一网络转移到第二网络；
    是否允许应用数据流从第一网络转移到第二网络；
    其中，所述第一网络是公众通信网络，所述第二网络是私有通信网络；或者，所述第一网络是私有通信网络，所述第二网络是公众通信网络；或者，所述第一网络是第一私有通信网络，所述第二网络是第二私有通信网络。
  24. 一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，其中，所述程序被所述处理器执行时实现如权利要求1至9中任一项所述的数据处理方法的步骤；或者如权利要求18至19中任一项所述的数据处理方法的步骤。
  25. 一种网络侧网元，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，其中，所述程序被所述处理器执行时实现如权利要求1至9中任一项所述的数据处理方法的步骤；或者如权利要求10至16中任一项所述的数据处理方法的步骤；或者实现如权利要求17所述的数据处理方法的步骤。
  26. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有程序，所述程序被处理器执行时实现如权利要求1至9中任一项所述的数据处理方法的步骤；或者如权利要求18至19中任一项所述的数据处理方法的步骤；或者，实现如权利要求10至16中任一项所述的数据处理方法的步骤；或者实现如权利要求17所述的数据处理方法的步骤。
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