CN110636475A

CN110636475A - Data processing method and device

Info

Publication number: CN110636475A
Application number: CN201810654483.5A
Authority: CN
Inventors: 柯小婉
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-06-22
Filing date: 2018-06-22
Publication date: 2019-12-31
Anticipated expiration: 2038-06-22
Also published as: CN110636475B; WO2019242731A1

Abstract

The embodiment of the invention provides a data processing method and equipment, wherein the method comprises the following steps: judging whether a preset condition is met; when the preset condition is met, sending first information to a first target end; wherein the first information comprises one or more of: communication service type information of a protocol data unit, PDU, session, slice information of a PDU session, communication service type information of a terminal, communication network information of a terminal, slice information of a terminal, communication service type information of a slice, and communication network information of a slice. In the embodiment of the invention, 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 the transfer of the private communication service in the public communication network, and can ensure the service experience of the private communication service.

Description

Data processing method and device

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a data processing method and data processing equipment.

Background

Many vertical industries have communication requirements, such as: railway dispatching, automation control and the like. The Fifth generation mobile communication technology (5G) communication network can provide a Local Area Network (LAN) type private communication service for the vertical industry, and meet the communication requirements of the vertical industry.

The LAN service may refer to providing an Internet Protocol (IP) or non-IP type private communication service on a 3d Generation Partnership Project (3 GPP) network system.

A Private Virtual Network (PVN) is a Private Virtual Network that supports LAN-type services. The concepts of PVN and LAN may be mixed and may be broadly referred to as private communication networks or private communication services. Private communication networks can be divided into type a networks (type-a networks) and type B networks (type-a networks), where a type a network can be a communication network not used for the public (such as a 3GPP network), but which can be in service continuity or roaming with the operator network. For a terminal of type a Network, the terminal may have two registrations, one with the type a Network and the other with the Network of the operator Public Land Mobile Network (PLMN). A 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 is used as a private network transmission network of a vertical industry, and can support services in a terminal private network in the private network or realize communication between terminals of the private network.

When the private communication network is provided for the vertical service through the operator network, the terminals of the vertical service may access the private communication network to communicate with each other or access the server of the vertical service. Terminals in the vertical industry may also access the public network of the operator at the same time to perform public communication services. At present, it is not clear how a PDU session of a private communication service maintains continuity or roams between a private communication network and a public communication network.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a data processing method and apparatus, which solve the problem that a PDU session of a private communication service maintains continuity or roaming between a private communication network and a public communication network.

In a first aspect, a data processing method is provided, which is applied to a first device, where the first device is a terminal or a first network element, and the method includes:

judging whether a preset condition is met;

when the preset condition is met, sending first information to a first target end;

wherein the first information comprises one or more of: communication service type information of a protocol data unit, PDU, session, slice information of a PDU session, communication service type information of a terminal, communication network information of a terminal, slice information of a terminal, communication service type information of a slice, and communication network information of a slice.

In a second aspect, a data processing method is further provided, which is applied to a second network element, and the method includes:

receiving first information;

determining the operation of the PDU session of the terminal and/or determining the registration operation of the terminal according to the first information;

wherein the first information comprises one or more of: 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, slice information of the terminal, communication service type information of the slice, and communication network information of the slice.

In a third aspect, a data processing method is further provided, which is applied to a third network element, and the method includes:

determining second information according to one or more items of the capability of the terminal, the subscription information of the terminal, the communication network information of the first network and the communication network information of the second network;

sending the second information to a second target end;

wherein the second information comprises one or more of:

whether the terminal is allowed to initiate the service of the first network under the second network;

whether to allow a PDU session to be transferred from a first network to a second network;

whether to allow the application data stream 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; alternatively, the first network is a first private communication network and the second network is a second private communication network.

In a fourth aspect, a data processing method is further provided, which is applied to a terminal, and the method includes:

receiving second information;

determining PDU session operation according to the second information;

wherein the second information comprises one or more of:

In a fifth aspect, a first device is further provided, where the first device is a terminal or a first network element, and includes:

the first judgment module is used for judging whether a preset condition is met or not;

the first sending module is used for sending first information to a first target end when the preset condition is met;

In a sixth aspect, there is provided a second network element, including:

the first receiving module is used for receiving first information;

a first determining module, configured to determine, according to the first information, a PDU session operation of the terminal and/or a registration operation of the terminal;

A seventh aspect provides a third network element, including:

the second determining module is used for determining second information according to one or more items of the capability of the terminal, the subscription information of the terminal, the communication network information of the first network and the communication network information of the second network;

the second sending module is used for sending the second information to a second target end;

wherein the second information comprises one or more of:

In an eighth aspect, there is further provided a terminal, including:

the second receiving module is used for receiving second information;

a third determining module, configured to determine a PDU session operation according to the second information;

wherein the second information comprises one or more of:

In a ninth aspect, there is further provided a terminal, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data processing method according to the first or fourth aspect.

In a tenth aspect, there is further provided a network element on a network side, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data processing method according to the first, second, third or fourth aspect.

In an eleventh aspect, there is also provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the data processing method according to the first, second, third or fourth aspect.

According to the embodiment of the invention, 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 in the public communication network, and can guarantee the service experience of the private communication service.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic diagram of a wireless communication system in a home routed manner in which a terminal of a first network roams to a second network;

FIG. 2 is a flow chart of a data processing method according to an embodiment of the present invention;

FIG. 3 is a second flowchart of a data processing method according to an embodiment of the present invention;

FIG. 4 is a third flowchart of a data processing method according to an embodiment of the present invention;

FIG. 5 is a fourth flowchart of a data processing method according to an embodiment of the present invention;

FIG. 6 is a fifth flowchart of a data processing method according to an embodiment of the present invention;

fig. 7 is a schematic process diagram of a terminal of a private communication network initiating a PDU session related to a private communication service in a public communication network according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a process of switching a terminal of a private communication network from the private communication network to a public communication network according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a process of switching a terminal of a private communication network from a public communication network back to the private communication network according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a procedure in which a terminal of a private communication network moves into a public communication network to initiate location update and request to activate a PDU session of an existing private communication service according to an embodiment of the present invention;

fig. 11 is a schematic process diagram of a terminal of a private communication network initiating a PDU session related to a private communication service in the private communication network according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a first apparatus according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a second network element according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a third network element according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 16 is a second schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a network element on a network side according to an embodiment of the present invention.

Detailed Description

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In this embodiment of the present invention, the network element may be one of the following: entity device, network function, network element.

In the embodiment of the present invention, the network element may include at least one of the following: CN network element and RAN network element.

In embodiments of the present invention, a private communication network may also be referred to as a non-public communication network, a Local Area Network (LAN), a Private Virtual Network (PVN), an isolated communication network, a private communication network, or other nomenclature. It should be noted that the naming method in the embodiment of the present invention is not particularly limited.

In the embodiment of the present invention, the core network element (CN element) may include, but is not limited to, at least one of the following: a core network device, a core network Node, a core network Function, a core network element, a Mobility Management Entity (MME), an Access Mobility Management Function (AMF), a Session Management Function (SMF), a User Plane Function (UPF), a Serving Gateway (Serving GW, SGW), a PDN Gateway (PDN Gateway), a Policy control Function (Policy control Function, PCF), a Policy and Charging Rules Function (Policy and Charging Rules Function, PCRF), a GPRS service Support Node (Serving GPRS Support Node, SGSN), a Gateway (Gateway GPRS Support Node, GGSN), and a wireless Access network device.

In the embodiment of the present invention, the radio access network element may include, but is not limited to, at least one of the following: radio Access network equipment, a Radio Access network Node, a Radio Access network Function, a Radio Access network Unit, a 3GPP Radio Access network, a Non-3GPP Radio Access network, a Centralized Unit (CU), a Distributed Unit (DU), a base station, an evolved Node B (eNB), a 5G base station (gNB), a Radio Network Controller (RNC), a base station (NodeB), a Non-3GPP InterWorking Function (N-3 GPP InterWorking Function, N3IWF), an Access Controller (AC) Node, an Access Point (AP) device, or a Wireless Local Area Network (WLAN) Node.

The Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved node b (eNB or e-NodeB) in LTE, and a 5G Base Station (gNB), and the embodiment of the present invention is not limited thereto.

It should be noted that, the embodiment of the present invention relates to the following scenarios:

scenario one, Protocol Data Unit (PDU) session for private communication service during roaming.

When a terminal of a type a network roams to a public communication network, a private communication service and a public communication service can be initiated. For the PDU session of the private communication service, a Home routed (Home routed) mode may be required to access a 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 a local User Plane Function (UPF), see fig. 1.

The private communication network may be a private virtual network deployed on an operator 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 scenario of roaming between PLMNs.

1) PDU session establishment for establishing private communication service after private communication network terminal roams to public communication network PLMN

For the PDU Session establishment of the inter-PLMN roaming scenario, the Access Mobility Management Function (Access and Mobility Management Function, AMF) may select the Home Session Management Function (H-SMF) through the < Visited Public Land Mobile Network (VPLMN), Single-segment Selection Assistance Information (S-NSSAI) > of the PDU Session and the < Home Public Land Mobile Network (HPLMN), S-NSSAI > mapped thereto. The AMF may select to access a Session Management Function (V-SMF) via < VPLMN, S-NSSAI >. But a terminal of a private communication network may have both a home private communication network and a home public communication network. When the terminal only reports < VPLMN, S-NSSAI-3>, the home private communication network < VPLMN, S-NSSAI-1> mapped by the terminal and the slice information < VPLMN, S-NSSAI-2> mapped by the home public communication network, if the PDU conversation requested by the terminal is not clear as the communication service type, the network does not know which slice information to adopt to select the H-SMF.

And after the private communication network terminal under the same PLMN roams to the public communication network PLMN, PDU session establishment of the private communication service is established. The slice information of the PDU session is < HPLMN, S-NSSAI-1> and < HPLMN, S-NSSAI-2>, and if it is not discriminated between the sliced public communication network information and private communication network information, nor is it discriminated whether the requested PDU session is for a private communication service or a public communication service, it may cause the network to be unclear as to the next operation.

When the terminal reports < HPLMN, S-NSSAI-1> and < HPLMN, S-NSSAI-2>, if it is a PDU session of public communication service, the network considers that the PLMNs are the same, and the terminal sends two pieces of slice information, which is an error operation.

When the terminal reports < HPLMN, S-NSSAI-1> and < HPLMN, S-NSSAI-2>, if it is a PDU Session of a private communication service, the network does not know which slice information to use to select the Visited Session Management Function (V-SMF), and the network does not know which slice information to use to select the Home Session Management Function (H-SMF).

When the terminal only reports < HPLMN, S-NSSAI-1>, S-NSSAI-1 may be the S-NSSAI of a slice that the terminal allows to access public communication services or the S-NSSAI of a slice that allows roaming of private communication services. If it is not clear what type of communication service the PDU session is requested, it is not clear to the network whether the H-SMF in the private communication network needs to be selected for the PDU session.

In the embodiment of the present invention, one implementation is that the communication service type (private communication service or public communication service) indicating that the PDU session is requested may be, by different types, the network may index the slice information of the private communication network to which the terminal belongs or the slice information of the home public communication network. In another embodiment, the slice public communication network type and the slice private communication network type are indicated, that is, the terminal reports < HPLMN, public communication network S-NSSAI > and < HPLMN, private communication network S-NSSAI >.

2) Private communication network to public communication network handover:

when the private communication network is switched to the public communication network, a Home routed manner is adopted, and V-SMF is selected for the existing PDU session of the private communication network, so as to access a User plane function (V-UPF). Whereas in a handover within a private communication network, V-SMF and V-UPF may not be selected for the PDU session. The switching of the private communication network to the public communication network is different from the switching within the private communication network. But both are based on switching of the N2 interface. The target AMF cannot identify whether V-SMF and H-SMF should be selected for the PDU session.

In the embodiment of the present invention, the slicing information of the PDU session in the private communication network and/or the slicing information of the mapped public communication network may be included in the UE context or the context of the PDU session. The context specification of the PDU session with the slice information of the mapped public communication network may allow the PDU session to be transferred to the public communication network. And selecting one V-SMF for the PDU session by the target AMF according to the slice information of the mapped public communication network.

Scenario two, whether to allow an application data flow (traffic) of a PDU session or a service of an upper layer application to interoperate between a private communication network and a public communication network.

It will be appreciated that not all PDU sessions or application traffic of the private communication network may be allowed to be transferred to the public communication network. Transfer to a private communication network is not allowed for a PDU session or application traffic of a public communication service established under the public communication network.

In the embodiment of the present invention, whether to allow the application traffic of the private communication service to roam to the public communication network may be indicated by configuring the private communication network slice information. Such as slice information of the public communication network and slice information of the mapped public communication network allowing application traffic configuration private communication networks roaming to the public communication network. Applying traffic triggers the establishment of a PDU session. When the slice information of the PDU session has the slice information of the private communication network and the slice information of the mapped public communication network, the PDU session is allowed to be transferred to the public communication network.

However, the existing application traffic, which is not configured with mapping public communication network mapping slice information (such as S-NSSAI), can still trigger the establishment of a PDU session and does not contain S-NSSAI. For example: type B terminals, applying traffic, are not allowed to access in public communication networks. In order to avoid the failure of the terminal to transfer the PDU session subsequently or the failure of the wireless access network to switch the PDU session.

In one embodiment of the invention, when the PDU session of the private communication service is established in the private communication network, the SMF may explicitly indicate whether the PDU session of the terminal or the radio access network terminal is allowed to access the public communication network. Or, the PCF may explicitly indicate whether the application traffic of the terminal is allowed to access the public communication network by configuring the policy to the terminal. The terminal may decide whether to initiate a PDU session setup for the private communication service or activate an existing PDU session for the private communication service under the public communication network.

In another embodiment of the invention, for PDU sessions not allowed to be handed over, the SMF may release the PDU session context or release the user plane connection of the PDU session when the terminal is transferred from the private communication network to the public communication network.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2, an embodiment of the present invention provides a data processing method, where an execution subject of the method may be a terminal, and the method includes the following specific steps:

step 201: the terminal judges whether a preset condition is met;

in another embodiment of the present invention, optionally, before step 201, the method may further include: and acquiring second information. The second information may refer to the description in the embodiment shown in fig. 5, and is not described herein again.

Optionally, the predetermined condition may include one or more of:

allowing the terminal to initiate a service of the first network under the second network;

allowing the PDU session to be transferred from the first network to the second network;

allowing an application data flow (traffic) to be transferred from a first network to a second network; the terminal initiates PDU session establishment under a second network;

the terminal requests to activate the PDU session in the second network;

the terminal is transferred between the first network and the second network;

the DN terminal, which the terminal needs to access to the first private communication network connection, needs to initiate a PDU session setup for the private communication service.

In one embodiment, 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.

In one embodiment, the terminal may be a terminal of the first private communication network. Further, the terminal of the first private communication network may comprise at least one of: the terminal of the first private communication network is signed up, the terminal of the first private communication network is registered, and the terminal of the first private communication network of type A is registered.

In one embodiment, the PDU session is a PDU session of the first private communication network. Further, the PDU session of the first private communication network may contain at least one of: the PDU session established in the first private communication network, the PDU session established in other networks and the PDU session is accessed to the first private communication network in a home roaming mode.

Further, allowing the terminal to initiate the service of the first network under the second network may include one or more of: allowing the terminal to initiate a private communication network service under a public communication network; the terminal is allowed to initiate the first private communication network service under the public communication network or the second private communication network.

In one embodiment, initiating service of the first network under the second network refers to initiating a PDU session setup request for service of the first network under the second network.

Further, allowing the PDU session to be transferred from the first network to the second network may include one or more of:

allowing handover of a PDU session established under a first network to a second network;

allowing a request to activate a PDU session (such as a user plane connection) established under a first network and/or a second network;

PDU session allowing request for establishment and/or establishment of private communication service under public communication network,

The request to establish and/or establish a PDU session served by the first private communication network is allowed under the second private communication network.

Further, when an application data flow (traffic) is allowed to be transferred from a first network to a second network, a PDU session carrying the application data flow is allowed to be transferred from the first network to the second network.

In one embodiment, the PDU session may include one or more of: a PDU session of a private communication service, a PDU session established under a private communication network, a PDU session established under a first private communication network.

In one embodiment, the terminal may include at least one of: a terminal of a private communication service, a terminal of a contracted or registered private communication network, a terminal of a contracted or registered first private communication network.

In one embodiment, the application may comprise: an application of a private communication service, an application of a private communication network, an application of a first private communication network.

Step 202: when a preset condition is met, the terminal sends first information to a first target end;

wherein the first information may include one or more of: communication service type information of a PDU session, communication network information of a PDU session, slice information of a PDU session, communication service type information of a terminal, communication network information of a terminal, slice information of a terminal, communication service type information of a slice, communication network information of a slice.

It is understood that when the determination result obtained in step 201 is that the predetermined condition is not satisfied, the flow may be ended, or the flow returns to step 201 to continue determining whether the predetermined condition is satisfied.

In an embodiment of the present invention, the first target end may be a Radio Access Network (RAN) Network element, a Core Network (CN) Network element, an AMF, an SMF, and a PCF, but is not limited thereto.

Further, the communication service type information of the PDU session, the communication service type information of the terminal, or the communication service type information of the slice may include one or more of the following: private communication service indication information and public communication service indication information.

Further, 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: communication network type information and a communication network identification. In one embodiment, the communication network information of the PDU session is communication network information of a network that establishes the PDU session. In one embodiment, the communication network information of the terminal is communication network information of a network to which the terminal has subscribed or registered. Further, the communication network information of the slice is communication network type information of a network to which the slice belongs.

Optionally, the communication network type information may include one or more of: a private communication network, a public communication network, a private communication network of type a, a private communication network of type B.

Alternatively, the communication network identity may be an identity of a private communication network or an identity of a public communication network.

Illustratively, the PDU session is an existing session established in a private communication network, and the communication network information of the PDU session is communication network information of the network of the established PDU session. The terminal may indicate the private communication network identity of the PDU session to be established and/or the communication network type of the PDU session to be established is the private communication network. Further, the above communication network type information may indicate a private communication network of type a or a private communication network of type B. In one embodiment, the communication network information of the PDU session may be indicated when the user plane connection activating the established PDU session is conducted under a public communication network or other private communication network.

Further, the slice information of the terminal or the slice information of the PDU session may include one or more of: private communication network slice information, public communication network slice information, private communication network slice information and public communication network slice information mapped by the private communication network slice information; and private communication network slice information mapped by the public communication network slice information and the public communication network slice information.

In another embodiment of the invention, optionally the private communication network slice information may comprise one or more of: the private communication network slicing information is allowed, the private communication network slicing information is configured, and the private communication network slicing information is signed.

In one embodiment of the invention, optionally, the private communication network slice information may include one or more of: private communication service indication information, private communication network information, and private communication network slice identification information (e.g., S-NSSAI, NSSAI). Further, the private communication network information may comprise at least one of: type a networks, type B networks.

It can be understood that, in a handover scenario, through the first information, the target Network may be helped to know that the PDU session of the terminal is a PDU session of a private communication service, a Home routing (Home routed) mode needs to be adopted, and a Home Network Function (H-NF) needs to be selected for the terminal according to private communication Network slice information of the PDU session, for example: H-SMF, H-UPF, or select Visited Network Function (V-NF) according to the public communication Network slice information of PDU session mapping, such as: V-SMF and V-UPF.

Referring to fig. 3, an embodiment of the present invention provides a data processing method, where an execution subject of the method may be a first network element. The method comprises the following specific steps:

step 301: the first network element judges whether a predetermined condition is met;

optionally, the first network element may include at least one of: RAN network element, CN network element, AMF, SMF, PCF.

Step 302: when a preset condition is met, a first network element sends first information to a first target end;

optionally, the first information may refer to the description in the embodiment shown in fig. 2, and is not described herein again.

Optionally, the predetermined condition may include one or more of: the terminal is transferred from the first network to the second network. In one embodiment, 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.

In another embodiment of the invention, optionally, the transfer of the terminal from the first network to the second network may comprise one or more of: the terminal is switched from the first network to the second network; the terminal is redirected from the first network to the private communication network; and the terminal moving from the first network to the second network.

In the embodiment of the present invention, the first information may help the target network to know that the PDU session of the terminal is the PDU session of the private communication service, a home routed manner needs to be adopted, and an H-NF needs to be selected for the terminal according to the private communication network slice information of the PDU session, for example: H-SMF, H-UPF; or selecting the V-NF according to the public communication network slice information of the PDU session mapping, such as: V-SMF and V-UPF.

Referring to fig. 4, an embodiment of the present invention provides a data processing method, where an execution subject of the method is a second network element, and the method includes the following specific steps:

step 401: receiving first information;

optionally, the second network element may comprise at least one of: RAN network element, CN network element, AMF, SMF, PCF.

Step 402: determining the operation of the PDU session of the terminal and/or determining the registration operation of the terminal according to the first information;

optionally, the operation of the PDU session may include one or more of:

PDU session operation in Home routing (Home Routed) mode related to private communication network;

selecting an H-NF (such as H-SMF and H-UPF) of a first private communication network for the PDU session according to the first information;

selecting a V-NF (such as V-SMF and V-UPF) of a second network for the PDU session according to the first information;

deleting the operation of the V-NF (such as V-SMF and V-UPF) of the second network of the PDU session;

not including the PDU session context of the public communication service in the returned PDU session context;

the PDU session context of the private communication service not allowing handover is not included in the returned PDU session context.

Further, when the terminal is transferred from the first network to the second network, the operation of the PDU session includes one or more of:

selecting H-NF (such as H-SMF and H-UPF) of a first network for the PDU session according to the first information;

and selecting the operation of the V-NF (such as V-SMF and V-UPF) of the second network for the PDU session according to the first information.

Further, when the terminal is transferred from the public communication network to the private communication network, the operation of the PDU session includes one or more of:

V-NF (e.g., V-SMF, V-UPF) of a public communication network that deletes a PDU session of a private communication service;

the PDU session context of the public communication service is not included in the returned PDU session context.

Further, when the terminal is transferred from the second private communication network to the first private communication network, the operation of the PDU session includes one or more of:

deleting the V-NF (e.g., V-SMF, V-UPF) of the second private communication network of the PDU session serviced by the first private communication network;

the PDU session context of the second private communication network service is not included in the returned PDU session context.

Further, selecting an H-NF (e.g., H-SMF, H-UPF) of the private communication network for the PDU session based on the first information may include one or more of:

when 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) according to the slice information of the home private communication network mapped by the slice information of the PDU session;

when the first information indicates that the communication service type of the PDU session is the public communication service, selecting H-NF (for example, H-SMF, H-UPF) according to the slice information of the home public communication network mapped by the slice information of the PDU session;

when the first information indicates that the PDU session is a PDU session of the first network, H-NF (e.g., H-SMF, H-UPF) is selected according to slice information of the first network mapped by slice information of the PDU session.

In one embodiment, the visited network of the terminal is a public communication network or a second private communication network, and when the home network is a private communication network or a first private communication network, the H-NF (e.g., H-SMF, H-UPF) of the private communication network is selected for the PDU session according to the first information.

In an exemplary embodiment, when the PDU session is confirmed to be the PDU session established in the private communication network, the PDU session operation in the Home Routed manner related to the private communication network may be adopted. The Home Routed manner may refer to selecting an H-SMF in the private communication network for the PDU session. H-SMF is selected to be H-UPF. It is to be understood that the PDU session of the private communication service is a data channel established over the terminal, the RAN network element, the V-UPF and the H-UPF. A private communication network Domain Name (DN) that the terminal can access through a PDU session of the private communication service.

In another exemplary embodiment, the PDU session requested to be established is a PDU session of a private communication service, and 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; and selecting the SMF of the public communication network as the V-SMF according to the public communication network slice information in the first information. V-SMF selects V-UPF; H-SMF selects H-UPF.

In yet another exemplary embodiment, the PDU session is a PDU session of an existing private communication service, and when the terminal transfers to a public communication network, the V-SMF in the current public communication network is selected for the PDU session according to the mapped public communication network slice information in the first information; the movement of the terminal into the public communication network may comprise at least one of: the terminal is switched to the public communication network, the terminal is redirected to the public communication network, and the terminal moves to the public communication network.

In yet another exemplary embodiment, the PDU session is a PDU session of an existing private communication service, and when the terminal transfers to the private communication network, the V-SMF in the current public communication network is deleted for the PDU session according to the mapped public communication network slice information in the first information.

In the embodiment of the present invention, the first information may help the target network to know that the PDU session of the terminal is the PDU session of the private communication service, a home routed manner needs to be adopted, and an H-NF needs to be selected for the terminal according to the private communication network slice information of the PDU session, for example: H-SMF, H-UPF, or selecting V-NF according to public communication network slice information of PDU session mapping, such as: V-SMF and V-UPF.

Referring to fig. 5, an embodiment of the present invention provides a data processing method, where an execution subject of the method is a third network element, and the method includes the following specific steps:

step 501: determining second information according to one or more items of the capability of the terminal, the subscription information of the terminal, the communication network information of the first network and the communication network information of the second network;

optionally, the third network element may comprise at least one of: RAN network element, CN network element, AMF, SMF, PCF.

Optionally, the communication network information of the first network or the communication network information of the second network may include one or more of: communication network type information and a communication network identification. Further, the communication network type information may include one or more of: a private communication network, a public communication network, a private communication network of type a, a private communication network of type B. Further, the communication network identity may be an identity of a private communication network or an identity of a public communication network.

Step 502: sending second information to a second target end; wherein the second information may include one or more of:

whether to allow an application data flow (traffic) to be transferred from a first network to a second network;

In one embodiment of the invention, the second target terminal may be at least one of: RAN network element, terminal and CN network element. In one embodiment, the AMF sends the second message to the SMF. In another embodiment, in the handover process, the source RAN network element sends the second information to the target RAN network element; and in the switching process, the source CN network element sends the second information to the target CN network element.

Further, whether to allow the terminal to initiate the service of the first network under the second network may include one or more of: whether the terminal is allowed to initiate private communication network service under a public communication network; whether the terminal is allowed to initiate the first private communication network service under the public communication network or the second private communication network. In one embodiment, initiating service of the first network under the second network refers to initiating a PDU session setup request for service of the first network under the second network.

Further, a PDU session may contain one or more of the following: a PDU session of a private communication service, a PDU session established under a private communication network, a PDU session established under a first private communication network.

Further, whether to allow the transfer of the PDU session from the first network to the second network may include one or more of:

whether to allow handover of a PDU session established under a first network to a second network;

whether to allow a request to activate a PDU session (such as a user plane connection) established under a first network and/or a second network under a first network;

whether to allow a PDU session of a private communication service requested to be established and/or established under a public communication network;

whether or not to allow a request to establish and/or establish a PDU session served by the first private communication network under the second private communication network.

In one embodiment, the transfer of the type B terminal, the PDU session of the private communication service of the type B terminal and/or the application data flow (traffic) of the private communication service of the type B terminal to the public communication network is not allowed.

It will be appreciated that the PDU session of the private communication service may or may not allow transfer to the public communication network. A PDU session for a public communication service may not be allowed to be transferred to a private communication network. Through the embodiment of the invention, the second information can help the RAN network element or the CN network element to decide whether to transfer the terminal and/or the PDU session of the private communication service of the terminal to the public communication network; on the other hand, the terminal can be helped to decide whether the private communication service can be initiated under the public communication network; and whether the PDU session of the private communication service of the terminal is allowed to be transferred to the public communication network and/or whether an application data stream (traffic) of the private communication service of the terminal is allowed to be transferred to the public communication network, thereby ensuring the service privacy and the service experience of the private communication service.

Referring to fig. 6, an embodiment of the present invention provides a data processing method, where an execution subject of the method may be a terminal or a network element on a network side, and the specific steps are as follows:

step 601: receiving second information;

in an exemplary embodiment, the terminal sends the second information from the RAN network element.

Step 602: determining PDU session operation according to the second information;

the second information may refer to the description in the embodiment shown in fig. 5, and is not described herein again. Optionally, the PDU session operation may include one or more of:

whether to switch a PDU session established under a first network to a second network;

whether to request activation of a PDU session (such as a user plane connection) established under a second network under a first network and/or activation;

whether to request establishment and/or establishment of a PDU session for a private communication service under a public communication network;

whether or not to request establishment and/or establishment of a PDU session served by the first private communication network under the second private communication network.

In an embodiment of the invention, a PDU session of a private communication service may or may not be allowed to be transferred to a public communication network. A PDU session for a public communication service may not be allowed to be transferred to a private communication network. Through the embodiment of the invention, the second information can help the RAN network element or the CN network element to decide whether to transfer the terminal and/or the PDU session of the private communication service of the terminal to the public communication network; on the other hand, the terminal can be helped to decide whether the private communication service can be initiated under the public communication network; and whether the PDU session of the private communication service of the terminal is allowed to be transferred to the public communication network and/or whether an application data stream (traffic) of the private communication service of the terminal is allowed to be transferred to the public communication network, thereby ensuring the service privacy and the service experience of the private communication service.

Example one: PDU session establishment

This example mainly describes a procedure in which a terminal of a private communication network initiates a PDU session related to a private communication service under a public communication network. Referring to fig. 7, the process of PDU session establishment includes the following steps:

step 1: the terminal transmits a Non Access Stratum (NAS) message to the AMF. The NAS message includes a PDU session establishment request message.

Optionally, the terminal determines that the PDU session establishment related to the private communication service can be initiated in the public communication network according to the second information. Further, the second information may refer to the description in the embodiment shown in fig. 5, and is not described herein again.

Optionally, the PDU session setup request message or the NAS message includes the first information. Further, the first information may refer to the description in the embodiment shown in fig. 2, and may include at least one of the following items: public communication network slicing information; mapped private communication network slice information, communication service type information (indicating a private communication service).

Step 2: the AMF receives the PDU session setup request message.

The AMF may select the V-SMF based on the first information (e.g., public communication network slice information). Alternatively, the AMF may select the H-SMF based on the first information (e.g., the mapped private communication network slice information). Alternatively, the AMF may map the private communication network slice information according to the first information (e.g., public communication network slice information and private communication service indication information), and select the H-SMF according to the private communication network slice information. The AMF may then send a request message to the selected V-SMF to create a Session Management (SM) context.

It will be appreciated that the way in which AMF selects SMF may be either direct selection or selection by NSSF.

Optionally, the request message for creating the SM context includes one of the following: first information, information of H-SMF.

And step 3: V-SMF is selected from V-UPF. The V-SMF sends an N4 session establishment to the selected V-SMF.

And 4, step 4: the V-SMF sends a create SM context request to the H-SMF.

Optionally, the create SM context request message includes one of the following: the first information can be referred to the description of the embodiment shown in fig. 2, and will not be described here.

And 5: the H-SMF registers the terminal to Unified Data Manager (UDM). The H-SMF can also acquire and subscribe the subscription data of the terminal.

Step 6: and the H-SMF acquires the strategy of the terminal from the PCF.

And 7: the H-SMF sends an N4 session establishment to the selected H-SMF.

And 8: the H-SMF returns an SM session establishment response to the V-SMF.

And step 9: the V-SMF sends an N1N2 message to the AMF. The N1N2 message includes a PDU session setup accept NAS message.

Step 10: and the AMF sends a PDU session resource establishment request message to the RAN network element. The N1N2 message contains a NAS message for 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: and 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.

It will be appreciated that a terminal of a private communications network may have both private communications network traffic and public communications network traffic. When a private communication network terminal accesses a public communication network, a PDU session of a private communication service requires access to a private DN through the public communication network (e.g., H-SMF connected through V-SMF, H-UPF connected through V-UPF). The public DN may be accessed by a PDU session of a public communication service directly through a public communication network (e.g., V-SMF, V-UPF). The setup procedure for different PDU sessions under the same terminal is different. Thus, by the terminal providing the first information, the network can decide on different PDU session operations.

Example two: terminal switching from private communication network to public communication network

The examples mainly describe the procedure of a terminal of a private communication network switching from the private communication network to a public communication network. Referring to fig. 8, as shown in fig. 8, the method includes the following steps:

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.

And 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.

Optionally, the source AMF sends the first information to the H-SMF.

The first information can be seen in the description of the embodiment shown in fig. 2, for example: the first information may comprise at least one of: private communication network to public communication network handover indication, identity of public communication network. For PDU sessions that do not allow handover to a specified public communication network, the H-SMF may perform at least one of: not returning the context of the corresponding PDU conversation, deleting the context of the PDU conversation, releasing the user plane connection of the PDU conversation, and suspending the PDU conversation.

Optionally, the PDU session context response message includes first information of the PDU session, and the description of the first information may refer to the above method embodiment, for example: the first information may comprise at least one of: public communication network slice information, mapped private communication network slice information.

And 4, step 4: the source AMF sends a create context request to the target AMF.

Optionally, the create context request message may include first information of the PDU session. The description of the first information may refer to the above method embodiments, for example: the first information may comprise at least one of: public communication network slice information, mapped private communication network slice information.

And 5: the target AMF receives the first information.

The AMF selects the V-SMF according to the first information (for example: public communication network slice information of PDU conversation).

The AMF sends a create SM context request to the selected V-SMF.

The mode by which AMF selects SMF may be direct selection or selection by NSSF.

Step 6: V-SMF is selected from V-UPF.

The V-SMF sends an N4 session establishment to the selected V-UPF.

And 7: the V-SMF sends a create SM context response to the target AMF.

And 8: the target AMF sends a handover request to the target RAN network element.

And step 9: the target RAN network element sends a handover request acknowledgement to the target AMF.

Step 10: the target AMF sends an update SM context request to the V-SMF. Requesting to update the N3 interface RAN-side address 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 includes a handover command.

Step 16: and the terminal accesses the target RAN network element.

And step 17: and the target RAN network element sends a switching notice 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 due to the insertion of the intermediate V-UPF.

Step 20: the H-SMF sends the N4 session modification to the H-UPF.

Step 21: the H-SMF sends an update SM context response to the source AMF.

It is to be understood that after the handover is completed, data between the terminal and the DN is transmitted through the data path between the target RAN network element, the V-UPF, and the H-UPF. Session management signaling between the terminal and the H-SMF is communicated between the target RAN network element, the AMF and the V-SMF.

Example three: switching from a public communication network to a private communication network

This example mainly describes a procedure in which a terminal of a private communication network switches from a public communication network back to the private communication network. Referring to fig. 9, as shown in fig. 9, the method includes the following steps:

And step 3: the source AMF selects a target AMF. The source AMF sends a create context request to the target AMF.

Optionally, the create context request may include first information of the PDU session.

This first information may be referred to as described in the embodiment shown in fig. 2. For example: the first information may include at least one of: public communication network slice information of the PDU session, private communication network slice information of a mapping of the PDU session, communication service type information (private communication service or public communication service) of the PDU session.

And 4, step 4: the target AMF sends an update SM context request to the H-SMF.

And 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 acknowledgement to the target AMF.

And 7: the target AMF sends an update SM context request to the H-SMF. Requesting to update the N3 interface RAN-side address of the PDU session.

And 8: the H-SMF sends an N4 session update to the H-UPF.

And 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 includes a handover command.

Step 13: and the terminal accesses the target RAN network element.

Step 14: and the target RAN network element sends a switching notice to the target AMF.

Step 15: the target AMF sends a handover completion to the source AMF.

Step 16: the source AMF sends a release SM context request to the V-SMF.

And 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.

And after the switching is finished, the data between the terminal and the DN are transmitted through a data channel between the target RAN network element and the H-UPF. Session management signaling between the terminal and the H-SMF is communicated between the target RAN network element and the AMF.

Example four: requesting activation of PDU session established in private communication network at public communication network

This example mainly describes the procedure where a terminal of a private communication network moves into a public communication network to initiate a location update and requests activation of a PDU session of an existing private communication network. Referring to fig. 10, as shown in fig. 10, the method includes the following steps:

step 1: the terminal sends a registration request message to the target AMF through the RAN network element, and the request type can be registration mobility update. Optionally, the terminal requests to activate a user plane connection of a PDU session established in the private communication network in the registration request.

Optionally, the terminal determines that activation of the private communication service related PDU session can be requested in the public communication network according to the second information. Further, the second information may refer to the description in the embodiment shown in fig. 5, and is not described herein again.

Step 2: the target AMF sends a terminal context transfer message to the source AMF.

And step 3: the source AMF requests a PDU session context from the H-SMF.

And 4, step 4: the source AMF sends a terminal context transfer response message to the target AMF.

Optionally, the terminal context transfer response message includes the first information of the PDU session. This first information may be referred to as described in the embodiment shown in fig. 2. For example: the first information may include at least one of: public communication network slice information, mapped private communication network slice information, communication service type information (private communication service or public communication service) of the PDU session.

And 5: and the target AMF initiates registration of the terminal to the UDM and explains that the service AMF of the terminal is changed into the target AMF.

Optionally, the target AMF may also obtain and/or subscribe to subscription information of the terminal.

Step 6: the target AMF receives the first information.

Optionally, the AMF selects the V-SMF based on 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 mode by which AMF selects SMF may be direct selection or selection by NSSF.

And 7: V-SMF is selected from V-UPF.

Optionally, the V-SMF sends an N4 session setup to the selected V-UPF.

And 8: the V-SMF sends a create SM context response to the target AMF.

And step 9: the target AMF sends a registration completion notification to the source AMF. The message requests to update the downlink AN channel information of the H-UPF due to the insertion of the intermediate V-UPF.

Step 10: the source AMF sends an update SM context request message to the H-SMF.

Optionally, the message requests to update the downlink access network channel information of the H-UPF due to the insertion of the intermediate V-UPF.

Step 11: the H-SMF sends the 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 transmits a registration acceptance message to the terminal.

Step 14: and the terminal returns a registration completion message to the target AMF.

It will be appreciated that after the terminal location is updated to the public communication network and the PDU session for the private communication service is activated, data between the terminal and the DN is transferred over the data path between the target RAN network element and the H-UPF. Session management signaling between the terminal and the H-SMF is communicated between the target RAN network element and the AMF.

Example five: PDU session establishment in private network

This example mainly describes a procedure in which a terminal of a private communication network initiates a PDU session related to a private communication service under the private communication network. Referring to fig. 11, the PDU session establishment procedure includes the following steps:

step 1: the terminal sends a NAS message to the AMF. The NAS message includes a PDU session establishment request message.

Optionally, the PDU session setup request message or the NAS message includes the first information. Further, the first information is as described in the embodiment of fig. 2, and may include at least one of the following items: private communication network slice information, mapped public communication network slice information, communication service type information (indicating a private communication service).

Step 2: the AMF may select the SMF based on the first information (e.g., private communication network slice information). The AMF may then send a request message to the selected SMF to create a session management context.

Optionally, the request message for creating the SM context includes one of the following: the first information.

And step 3: SMF selects UPF. The SMF sends an N4 session setup to the selected SMF.

And 4, step 4: SMF registers terminals to Unified Data Manager (UDM). The SMF may also obtain and subscribe to subscription data of the terminal.

And 5: the SMF acquires the policy of the terminal from the PCF.

Step 6: the SMF sends an N1N2 message to the AMF. The N1N2 message includes a PDU session setup accept NAS message.

The NAS message or the PDU session establishment accept message includes second information.

Further, the second information is described in the embodiment shown in fig. 5, and is not described herein again.

And 7: and the AMF sends a PDU session resource establishment request message to the RAN network element. The N1N2 message contains a NAS message for PDU session establishment.

The PDU session resource establishment request message includes second information.

And 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.

And step 9: and 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.

By the embodiment of the invention, in the PDU session establishment process, the terminal or the RAN network element obtains the information whether the PDU session is allowed to be transferred to the public communication network or other private communication networks.

The embodiment of the present invention further provides a first device, where the first device may be a terminal or a first network element, and since a principle of the first device for solving the problem is similar to the data processing method in the embodiment of the present invention, reference may be made to implementation of the method for implementation of the first device, and repeated parts are not described again.

Referring to fig. 12, the first apparatus 1200 includes:

a first judging module 1201, configured to judge whether a predetermined condition is satisfied;

a first sending module 1202, configured to send first information to a first target when the predetermined condition is met;

wherein the first information may include one or more of: 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, slice information of the terminal, communication service type information of the slice, and communication network information of the slice.

Optionally, the communication service type information of the PDU session, the communication service type information of the terminal, or the communication service type information of the slice may include one or more of the following: private communication service indication information and public communication service indication information.

Optionally, 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 a communication network identification.

Optionally, the communication network type information may include one or more of: a private communication network, a public communication network, a private communication network of type a, and a private communication network of type B.

Optionally, 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 slicing information; public communication network slicing information; private communication network slice information and public communication network slice information mapped by the private communication network slice information; and private communication network slice information mapped by the public communication network slice information and the public communication network slice information.

Optionally, the private communication network slice information of the terminal may include one or more of: the private communication network slicing information is allowed, the private communication network slicing information is configured, and the private communication network slicing information is signed.

Optionally, 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 a first network under a second network; whether to allow a PDU session to be transferred from a first network to a second network; whether to allow the application data stream traffic to be transferred from the first network to the second network;

Optionally, when the first device is a terminal, the predetermined condition may include one or more of the following:

allowing the terminal to initiate a service of a first network under a second network;

allowing the transfer of the application traffic from the first network to the second network;

the terminal initiates PDU session establishment under a second network;

the terminal requests to activate the PDU session in a second network;

the terminal is transferred between a first network and a second network; the terminal needs to be accessed to a DN connected with a first private communication network; and the number of the first and second groups,

the terminal needs to initiate PDU session establishment of private communication service;

Optionally, when the first device is a first network element, 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 device provided in the embodiment of the present invention may execute the method embodiment described above, and the implementation principle and the technical effect are similar, which are not described herein again.

The embodiment of the present invention further provides a second network element, and as the principle of solving the problem of the second network element is similar to the data processing method in the embodiment of the present invention, the implementation of the second network element may refer to the implementation of the method, and repeated parts are not described again.

Referring to fig. 13, the second network element 1300 includes:

a first receiving module 1301, configured to receive first information;

a first determining module 1302, configured to determine, according to the first information, a PDU session operation of the terminal and/or a registration operation of the terminal;

Optionally, the private communication network slice information may include one or more of: the private communication network slicing information is allowed, the private communication network slicing information is configured, and the private communication network slicing information is signed.

Optionally, the operation of the PDU session may include one or more of:

PDU conversation operation in a Home routing mode related to a private communication network;

not including the PDU session context of the public communication service in the returned PDU session context; and

The second network element provided in the embodiment of the present invention may execute the foregoing method embodiment, and the implementation principle and technical effect are similar, which is not described herein again.

The embodiment of the present invention further provides a third network element, and as the principle of solving the problem of the third network element is similar to the data processing method in the embodiment of the present invention, the implementation of the third network element may refer to the implementation of the method, and repeated parts are not described again.

Referring to fig. 14, the third network element 1400 includes:

a second determining module 1401, configured to determine second information according to one or more of the capability of the terminal, subscription information of the terminal, communication network information of the first network, and communication network information of the second network;

a second sending module 1402, configured to send the second information to a second target;

wherein the second information may comprise one or more of:

The third network element provided in the embodiment of the present invention may execute the foregoing method embodiment, and the implementation principle and technical effect are similar, which is not described herein again.

The embodiment of the invention also provides a terminal, and as the principle of solving the problem of the terminal is similar to the data processing method in the embodiment of the invention, the implementation of the terminal can refer to the implementation of the method, and repeated parts are not repeated.

Referring to fig. 15, a terminal 1500 includes:

a second receiving module 1501, configured to receive second information;

a third determining module 1502, configured to determine a PDU session operation according to the second information;

wherein the second information may comprise one or more of:

Optionally, the PDU session operation may include one or more of:

whether to handover a PDU session established under the first network to the second network;

whether to request activation and/or activation of a PDU session established under the second network under the first network;

The terminal provided by the embodiment of the present invention can execute the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.

As shown in fig. 16, the terminal 1600 shown in fig. 16 includes: at least one processor 1601, memory 1602, at least one network interface 1604, and a user interface 1603. The various components in terminal 1000 are coupled together by a bus system 1005. It is understood that the bus system 1605 is used to enable connected 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. But for clarity of illustration the various buses are labeled in figure 16 as bus system 1605.

The user interface 1603 may include, among other things, a display, a keyboard or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It is to be understood that the memory 1602 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration, and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data rate Synchronous Dynamic random access memory (ddr DRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1602 of the subject systems and methods described in connection with embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 1602 holds the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 16021 and application programs 16022.

The operating system 16021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 16022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. Programs that implement methods in accordance with embodiments of the present invention may be included within application 16022.

In an embodiment of the present invention, by calling a program or an instruction stored in the memory 1602, specifically, a program or an instruction stored in the application 16022, the following steps are implemented when executed: judging whether a preset condition is met; when the preset condition is met, sending first information to a first target end; wherein the first information comprises one or more of: communication service type information of a protocol data unit, PDU, session, slice information of a PDU session, communication service type information of a terminal, communication network information of a terminal, slice information of a terminal, communication service type information of a slice, and communication network information of a slice.

In another embodiment of the present invention, by calling a program or an instruction stored in the memory 1602, specifically, a program or an instruction stored in the application 16022, the following steps are implemented when executed: receiving second information; determining PDU session operation according to the second information; wherein the second information comprises one or more of: whether the terminal is allowed to initiate the service of the first network under the second network; whether to allow a PDU session to be transferred from a first network to a second network; whether to allow the application data stream 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; alternatively, the first network is a first private communication network and the second network is a second private communication network.

Referring to fig. 17, an embodiment of the present invention provides another network element 1100, including: a processor 1701, a transceiver 1702, a memory 1703 and a bus interface.

Among other things, 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 in performing operations.

In this embodiment of the present invention, the network element 1700 on the network side may further include: a computer program stored on the memory 1703 and executable on the processor 1101.

In one embodiment of the invention, the computer program when executed by the processor 1701 implements: judging whether a preset condition is met; when the preset condition is met, sending first information to a first target end; wherein the first information comprises one or more of: communication service type information of a protocol data unit, PDU, session, slice information of a PDU session, communication service type information of a terminal, communication network information of a terminal, slice information of a terminal, communication service type information of a slice, and communication network information of a slice.

In another embodiment of the present invention, the computer program when executed by the processor 1701 implements: receiving first information; determining the operation of the PDU session of the terminal and/or determining the registration operation of the terminal according to the first information; wherein the first information comprises one or more of: 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, slice information of the terminal, communication service type information of the slice, and communication network information of the slice.

In yet another embodiment of the present invention, the computer program when executed by the processor 1701 implements: determining second information according to one or more items of the capability of the terminal, the subscription information of the terminal, the communication network information of the first network and the communication network information of the second network; sending the second information to a second target end; wherein the second information comprises one or more of: whether the terminal is allowed to initiate the service of the first network under the second network; whether to allow a PDU session to be transferred from a first network to a second network; whether to allow the application data stream 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; alternatively, the first network is a first private communication network and the second network is a second private communication network.

In fig. 17, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1701, and various circuits, represented by the memory 1703, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further in connection with embodiments of the present invention. The bus interface provides an interface. The transceiver 1702 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The network element on the network side provided by the embodiment of the present invention may execute the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer 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 above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A data processing method is applied to a first device, wherein the first device is a terminal or a first network element, and the method comprises the following steps:

judging whether a preset condition is met;

2. The method of claim 1, wherein the communication service type information of the PDU session, the communication service type information of the terminal, or the communication service type information of the slice comprises one or more of the following: private communication service indication information and public communication service indication information.

3. The method of claim 1, wherein the communication network information of the PDU session, the communication network information of the terminal, or the communication network information of the slice comprises one or more of: communication network type information and a communication network identification.

4. The method of claim 3, wherein the communication network type information comprises one or more of: a private communication network, a public communication network, a private communication network of type a, and a private communication network of type B.

5. The method of claim 1, wherein the slicing information of the terminal or the slicing information of the PDU session comprises one or more of the following:

private communication network slicing information; public communication network slicing information; private communication network slice information and public communication network slice information mapped by the private communication network slice information; and private communication network slice information mapped by the public communication network slice information and the public communication network slice information.

6. The method of claim 5, wherein the private communication network slice information comprises one or more of: the private communication network slicing information is allowed, the private communication network slicing information is configured, and the private communication network slicing information is signed.

7. The method according to claim 1, wherein when the first device is a terminal, before the determining whether the predetermined condition is satisfied, the method further comprises:

obtaining second information, wherein the second information comprises one or more of the following items: whether the terminal is allowed to initiate a service of a first network under a second network; whether to allow a PDU session to be transferred from a first network to a second network; whether to allow the application data stream traffic to be transferred from the first network to the second network;

8. The method according to any one of claims 1 to 7, wherein when the first device is a terminal, the predetermined condition comprises one or more of:

the terminal initiates PDU session establishment under a second network;

the terminal requests to activate the PDU session in a second network;

the terminal is transferred between a first network and a second network;

the terminal needs to be accessed to a data network DN connected with a first private communication network; and the number of the first and second groups,

9. The method according to any of claims 1 to 7, wherein when the first device is a first network element, the predetermined condition comprises one or more of:

the terminal is transferred from the first network to the second network;

10. A data processing method applied to a second network element, the method comprising:

receiving first information;

11. The method of claim 10, wherein the communication service type information of the PDU session, the communication service type information of the terminal, or the communication service type information of the slice comprises one or more of the following: private communication service indication information and public communication service indication information.

12. The method of claim 10, wherein the communication network information of the PDU session, the communication network information of the terminal, or the communication network information of the slice comprises one or more of: communication network type information and a communication network identification.

13. The method of claim 12, wherein the communication network type information comprises one or more of: a private communication network, a public communication network, a private communication network of type a, and a private communication network of type B.

14. The method of claim 10, wherein the slicing information of the terminal or the slicing information of the PDU session comprises one or more of the following:

15. The method of claim 14, wherein the private communication network slice information comprises one or more of: the private communication network slicing information is allowed, the private communication network slicing information is configured, and the private communication network slicing information is signed.

16. The method according to any of claims 10 to 15, wherein the operation of the PDU session comprises one or more of:

selecting an operation of a home network function H-NF of a first private communication network for the PDU session according to the first information;

selecting an operation of accessing a network function V-NF of a second network for the PDU session according to the first information;

deleting the operation of the V-NF of the second network of the PDU session;

17. A data processing method applied to a third network element, the method comprising:

sending the second information to a second target end;

wherein the second information comprises one or more of:

18. A data processing method is applied to a terminal, and is characterized in that the method comprises the following steps:

receiving second information;

determining PDU session operation according to the second information;

wherein the second information comprises one or more of:

19. The method of claim 18, wherein the PDU session operation comprises one or more of:

20. A first device, the first device being a terminal or a first network element, comprising:

21. A second network element, comprising:

the first receiving module is used for receiving first information;

22. A third network element, comprising:

wherein the second information comprises one or more of:

23. A terminal, comprising:

the second receiving module is used for receiving second information;

wherein the second information comprises one or more of:

24. A terminal, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data processing method according to any one of claims 1 to 9; or the steps of a data processing method as claimed in any one of claims 18 to 19.

25. A network side network element, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the data processing method according to any one of claims 1 to 9; or the steps of a data processing method according to any of claims 10 to 16; or steps of implementing a data processing method as claimed in claim 17.

26. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the data processing method according to any one of claims 1 to 9; or the steps of a data processing method according to any of claims 18 to 19; or, implementing the steps of a data processing method according to any one of claims 10 to 16; or steps of implementing a data processing method as claimed in claim 17.