CN112655244A

CN112655244A - Service processing method, device and storage medium

Info

Publication number: CN112655244A
Application number: CN201880097282.8A
Authority: CN
Inventors: 刘建华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2021-04-13
Anticipated expiration: 2038-10-30
Also published as: CN112655244B; WO2020087308A1

Abstract

The invention discloses a service processing method, which comprises the following steps: the terminal equipment receives an indication allowing a first service to be accessed through a second network from a first network element, wherein the first network element belongs to a first network; when the terminal device establishes a session in the second network for the first service, first information and a second session identifier of the first service in the second network are carried in a first message; the first message is used for the terminal equipment to establish a session in the second network aiming at the first service. The embodiment of the invention also provides another service processing method, equipment and storage medium.

Description

Service processing method, device and storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a service processing method, a device, and a storage medium.

Background

For some services of a Public Land Mobile Network (PLMN), a terminal Equipment (UE) may obtain services through at least two networks; for example, the terminal device may obtain the service through the PLMN, or may obtain the service through a (Type-a Network, TAN) that can Access the PLMN in a Vertical Local Access Network (VLAN). Therefore, there is no effective solution for how to achieve service continuity for services that the UE has established within the PLMN when the UE moves from the coverage of one network to the coverage of another network.

Disclosure of Invention

To solve the foregoing technical problem, embodiments of the present invention provide a service processing method, device and storage medium, which implement service continuity of a service that a UE has established in one network when the UE moves from a coverage of one network to a coverage of another network.

In a first aspect, an embodiment of the present invention provides a service processing method, including: the terminal equipment receives an indication allowing a first service to be accessed through a second network from a first network element, wherein the first network element belongs to a first network; when the terminal device establishes a session in the second network for the first service, carrying first information and a second session (IDentity, ID) of the first service in the second network in a first message; the first message is used for the terminal equipment to establish a session in the second network aiming at the first service.

In a second aspect, an embodiment of the present invention provides a service processing method, including: the first core network element triggers the first service of the second network element based on the second information;

the second information includes: the first service maps a network Protocol (Internet Protocol, IP) address and an IP address corresponding to a first session identifier ID in a first network.

In a third aspect, an embodiment of the present invention provides a service processing method, where the method includes:

the second core network element acquires third information; the third information is used for migrating the first service from the first network to the second network, and the third information at least comprises: the method comprises the steps of obtaining a first session ID of a first service in a first network, an IP address corresponding to the first session ID and an IP address mapping relation.

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes: a receiving unit configured to receive an indication that a first service is allowed to be accessed through a second network from a first network element, the first network element belonging to a first network;

a first processing unit, configured to, when a session is established in the second network for the first service, carry first information and a second session identifier ID of the first service in the second network in a first message;

the first message is used for the terminal equipment to establish a session in the second network aiming at the first service.

In a fifth aspect, an embodiment of the present invention provides a first core network element, where the first core network element includes:

a second processing unit configured to trigger a first service of a second network element based on the second information;

the second information includes: and the first service has a mapping relation between the IP address and the IP address of the network protocol corresponding to the first session identification ID of the first network.

In a sixth aspect, an embodiment of the present invention provides a second core network element, where the second core network element includes:

a third processing unit configured to acquire third information; the third information is used for migrating the first service from the first network to the second network, and the third information at least comprises: a first session identification ID of the first service in a first network, a network protocol IP address corresponding to the first session ID, and an IP address mapping relation.

In a seventh aspect, an embodiment of the present invention provides a terminal device, including: the service processing method comprises a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is used for executing the steps of the service processing method executed by the terminal equipment when the computer program is run.

In an eighth aspect, an embodiment of the present invention provides a first core network element, including: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the service processing method executed by the first core network element when the processor runs the computer program.

In a ninth aspect, an embodiment of the present invention provides a second core network element, including: a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the service processing method executed by the second core network element when the processor runs the computer program.

In a tenth aspect, an embodiment of the present invention provides a storage medium, where an executable program is stored, and when the executable program is executed by a processor, the service processing method executed by the terminal device is implemented.

In an eleventh aspect, an embodiment of the present invention provides a storage medium, where an executable program is stored, and when the executable program is executed by a processor, the service processing method executed by the first core network element is implemented.

In a twelfth aspect, an embodiment of the present invention provides a storage medium, where an executable program is stored, and when the executable program is executed by a processor, the service processing method executed by the second core network element is implemented.

In the service processing method provided by the embodiment of the present invention, the terminal device receives an indication allowing the first service to access through the second network from the first network element in the first network, and when the terminal device establishes a session in the second network for the first service, the terminal device carries a second session ID of the first service in the second network and a first session ID of the first service in the first network, or carries the second session ID of the first service in the second network and an IP address of the first service in the first network; when the terminal equipment moves from the first network to the second network, the IP address of the first service when accessing the first network is still used when the first service accesses the second network, and the continuity of the service when the network accessed by the terminal equipment changes is realized.

Drawings

Fig. 1 is a schematic flow chart of a service acquisition process of a terminal device in the related art;

FIG. 2 is a block diagram of a communication system according to an embodiment of the present invention;

fig. 3 is a schematic view of an alternative processing flow of a service processing method applied to a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic view of an optional processing flow of a service processing method applied to a first core network element according to an embodiment of the present invention;

fig. 5 is a schematic view of an optional processing flow of a service processing method applied to a second core network element according to an embodiment of the present invention;

fig. 6 is a schematic processing flow diagram of a terminal device establishing a PDU Session in a first network according to an embodiment of the present invention;

fig. 7 is a schematic processing flow diagram for migrating a PDU Session from a first network to a second network according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a first core network element according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second core network element according to an embodiment of the present invention;

fig. 11 is a schematic diagram of a hardware component structure of an electronic device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and technical contents of the embodiments of the present invention can be understood in detail, a more particular description of the embodiments of the present invention will be rendered by reference to the appended drawings, which are included for purposes of illustration and not limitation.

Before describing the embodiments of the present invention in detail, the VLAN will be described in detail first. The need to support VLANs is introduced in 5G systems. The VLAN is divided into a TAN capable of accessing the PLMN and a (Type-b Network, TBN) incapable of accessing the PLMN according to whether the PLMN is accessed. For some services of PLMN, the UE may obtain services through PLMN or TAN, as shown in fig. 1: user Port Function (UPF) and UPF-a can access the same Data network (Data Net, DN); wherein, the network elements with the same PLMN and TAN functions may be shared.

The service processing method of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 2. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 2 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 2 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

As shown in fig. 3, the optional processing flow of the service processing method applied to the terminal device provided in the embodiment of the present invention includes the following steps:

step S201, the terminal device receives an indication from the first network element to allow the first service to access through the second network.

In some embodiments, the first network element is a Packet Control Function (PCF) entity, the first network element belongs to a first network, the first network is a PLMN network, and the second network is a TAN network.

Correspondingly, the terminal equipment obtains a first UE routing POLICY (UE Route SELECT POLICY, URSP) from the PCF entity; the URSP may include: the method comprises the steps that Single Network Slice Selection Assistance Information (S-NSSAI), a Data Network Name (DNN) and a first indication are respectively corresponding to Application identification (APP ID); the first indication is used for indicating that the business of the APP corresponding to the APP ID is allowed to access through the TAN, and may also include the TAN ID; or the first indication is used for indicating that the service of the APP corresponding to the APP ID is not allowed to access through the TAN, and may further include the TAN ID.

Step S202, when the terminal device establishes a session in the second network for the first service, the terminal device carries first information and a second session ID of the first service in the second network in a first message.

Here, the first message is used for the terminal device to establish a session in the second network for the first service.

In some embodiments, after the terminal device moves from the PLMN network to the TAN coverage and accesses the TAN network, the terminal device sends a first message to the second AMF; optionally, the first message is a first NAS message carrying a PDU Session Establishment Request; the first NAS message includes a second Session ID (Session ID2) corresponding to a second Session within the TAN network.

Optionally, the first NAS message further comprises a first Session identification ID (Session ID1) of the first service at the first network; each Session ID corresponds to an IP address, which has an IP address mapping relationship for characterizing the mapping relationship between IP addresses inside the operator network and IP addresses outside the operator network. The first NAS message may also indicate that the PDU Session was transferred from within the PLMN network. Based on the session identifier, a corresponding IP address can be obtained, where the IP address is used by the second SMF when the terminal device establishes the second session in the second network.

Optionally, the first NAS message further includes an IP address corresponding to a first session ID of the first service in the first network; at this time, the IP address of Session ID1 can be directly obtained without inquiring the correspondence between the Session ID and the IP address, and the IP address is used by the second SMF when the terminal device establishes the second Session in the second network.

Optionally, the first NAS message further includes a Request Type (requiring Type), DNN.

As shown in fig. 4, the optional processing flow of the service processing method applied to the first core network element provided in the embodiment of the present invention includes the following steps:

step S301, the first core network element triggers the first service of the second network element based on the second information.

Here, the first core network element belongs to a first network, the second network element is a server, and the first service is a registration service; the second information includes: the first service has a mapping relationship between an IP address and an IP address corresponding to a first Session ID (Session ID1) in the first network.

In some embodiments, when initiating a PDU Session setup for a first service of a first network, a terminal device sends a second NAS message to a first AMF, where the second NAS message includes a Session ID1, a Request Type ═ Initial, an S-NSSAI, a DNN, and a PDU Session Establishment Request. The first AMF triggers a session establishment service of a first core network element; and the first core network element inquires local configuration information, judges that the first service can be accessed through the TAN network according to the S-NSSAI and the DNN, and triggers the first service of the second network element when the service continuity of the first service needs to be maintained.

And when the first core network element triggers the first service of the second network element, the message sent to the second network element by the first core network element carries the IMSI, the Session ID1, the IP address and the mapping relation of the IP address.

Optionally, the first core network element is a first SMF of a first network, and the second network element is a Unified Data Manager (UDM).

In some embodiments, after step S301, the method further comprises:

the first core network element calls a registration service of the UDM, and the first core network element interacts with the UDM for information such as IMSI, Session ID1, S-NSSAI, DNN, IP address, and IP address mapping relation, so that the first core network element sends the Session ID1 to the terminal device to trigger a NIN 2Message Transfer service of the first AMF, so that the terminal device obtains a first Session ID1 of the first Session established in the first network from the first AMF.

As shown in fig. 5, the optional processing flow of the service processing method applied to the second core network element provided in the embodiment of the present invention includes the following steps:

step S401, the second core network element acquires the third information.

Here, the third information is used to migrate the first service from the first network to the second network, and the third information at least includes: the method comprises the steps of identifying a first session ID of a first service in a first network, an IP address corresponding to the first session ID and an IP address mapping relation.

In some embodiments, the obtaining, by the second core network element, the third information includes:

a second core network element receives a second message sent by a third network element, wherein the second message carries a second Session ID (Session ID2) of the first service in a second network; and triggering a second service of a second network element by a second core network element, where the second service is used to obtain a Session ID1 of the first service in the first network, an IP address corresponding to the Session ID1, and an IP address mapping relationship.

In some embodiments, the second core network element is a second SMF, the second SMF belongs to a second network, the third network element is a second AMF, the second network element is a UDM, the first network is a PLMN network, and the second network is a TAN network.

In some embodiments, after step S401, the method further comprises:

the second core network element invokes an N1N2messageTransfer service of the second AMF, which includes: IMSI, Session ID2, PDU Session Establishment Accept; the PDU Session Establishment Accept may not include an IP address; the second AMF sends a third NAS message to the UE based on the N1N2message transfer service, wherein the third NAS message comprises a Session ID2 and a PUD Session evidence Accept; at this time, the terminal device establishes a second session in the second network, and the IP address corresponding to the second session is still the IP address corresponding to the first session; namely, the first Session with Session ID1 in the first network is identified by the first service, and the same IP address is used for the second Session with Session ID2 in the second network, which ensures the continuity of the first service when the terminal device is handed over from the first network to the second network.

The schematic processing flow diagram of the terminal device establishing the PDU Session in the first network (PLMN) in the embodiment of the present invention, as shown in fig. 6, includes:

step S501, the terminal equipment is registered in PLMN.

Step S502, the terminal device obtains the URSP from the first PCF.

The system comprises S-NSSAI and DNN corresponding to a certain App ID, a first indication which indicates whether the service of the App can be accessed through a second network (TAN) and the TAN ID.

Step S503, the terminal equipment triggers PDU Session Establishment aiming at PLMN service, distributes Session ID1, and sends NAS message to the first AMF, wherein the NAS message comprises Session ID1, Request Type (Initial), S-NSSAI, DNN, PDU Session Establishment Request.

Step S504, the first AMF triggers a Session Establishment service of the first SMF, which includes IMSI, Session ID1, Request Type ═ Initial, S-NSSAI, DNN, PDU Session Establishment Request.

Step S505, the first SMF inquires the local configuration information, judges that the service can be accessed through the TAN according to the S-NSSAI and the DNN, and triggers the registration service of the UDM when the service continuity is needed, wherein the registration service comprises the mapping relation of IMSI, Session ID1, S-NSSAI, DNN, IP address and IP address. The UDM saves the above list of information in the UE SM Context. The mapping relation of the IP address is the mapping relation between the network IP address inside the operator network and the network IP address outside the operator network.

Step S506, the first SMF triggers an N1N2MessageTransfer service of the first AMF, which includes IMSI, Session ID1, PDU Session Establishment Accept.

Step S507, the first AMF sends an NAS message to the terminal device, where the NAS message includes Session ID1 and PDU Session Establishment Accept.

After the terminal equipment establishes the PDU Session under a first network (PLMN), the terminal equipment moves from the first network to a second network (TAN), and the corresponding PDU Session also needs to be moved to the TAN so as to ensure the continuity of the service; fig. 7 is a schematic diagram of a process flow for migrating a PDU Session from a first network to a second network, including:

step S601, after the terminal device moves to the coverage of the TAN and accesses the TAN network, the terminal device sends an NAS message carrying a PDU Session Establishment Request to the second AMF. Session ID2, Request Type, DNN of the Session included in the TAN in the NAS message; the PDU Session Establishment Request includes a PDU Session ID that needs to be switched to the TAN and is established in the PLMN, that is, Session ID1 in the above embodiment, and may further include a second indication that the PDU Session is transferred from the PLMN. Here, Session ID2 may be the same as or different from Session ID 1.

Step S602, the second AMF triggers a Session Establishment service of the second SMF, which includes IMSI, Session ID2, Request Type Existing, DNN, and PDU Session Establishment Request.

Step S603, the second SMF determines that the PDU Session is the PDU Session transferred from the PLMN according to the indication in the PDU Session Establishment Request or carries Session ID1, and the second SMF invokes the acquisition service of the second UDM to Request the subscription information related to Session management of the terminal device, where the subscription information includes IMSI and Session ID 1.

Step S604, the UDM inquires the mapping relation between the IP address and the IP address corresponding to the Session ID1 from the SM context of the terminal equipment according to the IMSI and the Session ID1, and responds the mapping relation between the IMSI and the Session ID1, the IP address and the IP address to the second SMF.

Step S605, the second SMF triggers the N1N2MessageTransfer service of the second AMF, where the service includes IMSI, Session ID2, PDU Session Establishment access, and the PDU Session Establishment access may not include IP address.

Step S606, the second AMF sends NAS message to the terminal device, where the NAS message includes Session ID2 and PDU Session Establishment Accept. The terminal device multiplexes the IP address corresponding to the Session ID1 into the IP address of the Session ID 2.

In the embodiment of the invention, when the terminal equipment moves from the first network to the second network, the IP address of the first service of the terminal equipment in the first network can be ensured to be the same as the IP address of the terminal equipment in the second network, thereby realizing the continuity of the service.

In the above embodiments of the present invention, the UDM may be managed by an operator, or may be managed by a third party.

An embodiment of the present invention further provides a terminal device, where a structure of the terminal device 800, as shown in fig. 8, includes:

a receiving unit 801 configured to receive an indication that a first service is allowed to access through a second network from a first network element, where the first network element belongs to a first network;

a first processing unit 802, configured to, when a session is established in the second network for the first service, carry first information and a second session ID of the first service in the second network in a first message; the first message is used for the terminal equipment to establish a session in the second network aiming at the first service.

In this embodiment of the present invention, the first information includes: and the first session ID of the first service in the first network or the IP address corresponding to the first session ID of the first service in the first network.

In this embodiment of the present invention, the receiving unit is configured to receive, from the first network element, a URSP, where the URSP includes an indication that the first service is allowed to be accessed through the second network.

In this embodiment of the present invention, the first message further includes a first indication, where the first indication is used to indicate that the session is migrated from the first network to the second network.

An embodiment of the present invention further provides a first core network element, where a schematic structural diagram of a composition of the first core network element 900 is shown in fig. 9, and the first core network element includes:

a second processing unit 901 configured to trigger a first service of a second network element based on the second information;

the second information includes: and the first service identifies the IP address corresponding to the ID in the first session of the first network and the mapping relation of the IP address.

An embodiment of the present invention further provides a second core network element, where a schematic structural diagram of a second core network element 1000 is shown in fig. 10, and the second core network element includes:

a third processing unit 1001 configured to acquire third information; the third information is used for migrating the first service from the first network to the second network, and the third information at least comprises: the method comprises the steps of obtaining a first session ID of a first service in a first network, an IP address corresponding to the first session ID and an IP address mapping relation.

In this embodiment of the present invention, the third processing unit 1001 is configured to receive a second message sent by a third network element, where the second message carries a second session ID of the first service in a second network.

The third processing unit 1001 is configured to trigger a second service of a second network element, where the second service is used to obtain a first session ID of the first service in a first network, an IP address corresponding to the first session ID, and an IP address mapping relationship.

It should be noted that the first core network element and the second core network element provided in the embodiment of the present invention have the same function, and the first core network element belongs to a first network, the second core network element belongs to a second network, and the first network and the second network are different networks.

The embodiment of the present invention further provides a terminal device, which includes a processor and a memory for storing a computer program capable of running on the processor, wherein the processor is configured to execute the steps of the service processing method executed by the terminal device when running the computer program.

The embodiment of the present invention further provides a first core network element, which includes a processor and a memory for storing a computer program capable of being executed on the processor, where the processor is configured to execute the steps of the service processing method executed by the network device when the processor executes the computer program.

The embodiment of the present invention further provides a second core network element, which includes a processor and a memory for storing a computer program capable of being executed on the processor, where the processor is configured to execute the steps of the service processing method executed by the network device when the processor executes the computer program.

Fig. 11 is a schematic diagram of a hardware structure of an electronic device (a terminal device, a first core network element, or a second core network element) according to an embodiment of the present invention, where the electronic device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704. The various components in the electronic device 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 11 as the bus system 705.

It will be appreciated that the memory 702 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. The non-volatile Memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic random access Memory (FRAM), Flash Memory (Flash Memory), magnetic surface Memory, optical Disc, or Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced Synchronous Dynamic Random Access Memory), Synchronous link Dynamic Random Access Memory (DRAM, Synchronous Dynamic Random Access Memory), Direct Memory (DRmb Random Access Memory). The memory 702 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The memory 702 in embodiments of the present invention is used to store various types of data in support of the operation of the electronic device 700. Examples of such data include: any computer program for operating on electronic device 700, such as application 7022. Programs that implement methods in accordance with embodiments of the present invention can be included within application program 7022.

The method disclosed in the above embodiments of the present invention may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The Processor 701 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 701 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 702, and the processor 701 may read the information in the memory 702 and perform the steps of the aforementioned methods in conjunction with its hardware.

In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, MPUs, or other electronic components for performing the foregoing methods.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the first core network element in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiments of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the second core network element in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

The present invention is 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.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.

Claims

A method of traffic processing, the method comprising:

the terminal equipment receives an indication allowing a first service to be accessed through a second network from a first network element, wherein the first network element belongs to a first network;

when the terminal equipment establishes a session in the second network for the first service, first information and a second session Identification (ID) of the first service in the second network are carried in a first message;

the first message is used for the terminal equipment to establish a session in the second network aiming at the first service.
The method of claim 1, wherein the first information comprises:

a first session ID of the first service in the first network, or a network protocol IP address corresponding to the first session ID of the first service in the first network.
The method of claim 1, wherein the receiving, by the terminal device from the first network element, the indication that the first service is allowed to be accessed through the second network comprises:

the terminal device receives a terminal device routing policy, URSP, from the first network element, the URSP including an indication that the first service is allowed to be accessed over the second network.
The method of any of claims 1 to 3, wherein the first message further comprises a first indication indicating that the session is migrated from the first network to the second network.
A method of traffic processing, the method comprising:

the first core network element triggers the first service of the second network element based on the second information;

the second information includes: and the first service has a mapping relation between the IP address and the IP address of the network protocol corresponding to the first session identification ID of the first network.
A method of traffic processing, the method comprising:

the second core network element acquires third information; the third information is used for migrating the first service from the first network to the second network, and the third information at least comprises: a first session identification ID of the first service in a first network, a network protocol IP address corresponding to the first session ID, and an IP address mapping relation.
The method of claim 6, wherein the obtaining, by the second core network element, third information comprises:

and the second core network element receives a second message sent by a third network element, wherein the second message carries a second session ID of the first service in a second network.
The method of claim 6, wherein the obtaining, by the second core network element, third information comprises:

and the second core network element triggers a second service of the second network element, and the second service is used for acquiring a first session ID of the first service in the first network, an IP address corresponding to the first session ID and an IP address mapping relation.
A terminal device, the terminal device comprising:

a receiving unit configured to receive an indication that a first service is allowed to be accessed through a second network from a first network element, the first network element belonging to a first network;

a first processing unit, configured to, when a session is established in the second network for the first service, carry first information and a second session identifier ID of the first service in the second network in a first message;

the first message is used for the terminal equipment to establish a session in the second network aiming at the first service.
The terminal device of claim 9, wherein the first information comprises:

a first session ID of the first service in the first network, or a network protocol IP address corresponding to the first session ID of the first service in the first network.
The terminal device of claim 9, wherein the receiving unit is configured to receive a terminal device routing policy, URSP, from the first network element, the URSP including an indication that the first traffic is allowed to be accessed through the second network.
The terminal device according to any of claims 9 to 11, wherein the first message further comprises a first indication indicating that the session is migrated from the first network to the second network.
A first core network element, the first core network element comprising:

a second processing unit configured to trigger a first service of a second network element based on the second information;

the second information includes: and the first service has a mapping relation between the IP address and the IP address of the network protocol corresponding to the first session identification ID of the first network.
A second core network element, the second core network element comprising:

a third processing unit configured to acquire third information; the third information is used for migrating the first service from the first network to the second network, and the third information at least comprises: a first session identification ID of the first service in a first network, a network protocol IP address corresponding to the first session ID, and an IP address mapping relation.
The second core network element according to claim 14, wherein the third processing unit is configured to receive a second message sent by a third network element, and the second message carries a second session ID of the first service in a second network.
The second core network element of claim 14, wherein the third processing unit is configured to trigger a second service of the second network element, and the second service is configured to obtain a first session ID of the first service in the first network, an IP address corresponding to the first session ID, and an IP address mapping relationship.
A terminal device comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to execute the steps of the service processing method according to any one of claims 1 to 4 when running the computer program.
A first core network element comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to execute the steps of the service processing method according to claim 5 when running the computer program.
A second core network element comprising a processor and a memory for storing a computer program capable of running on the processor, wherein,

the processor is configured to execute the steps of the service processing method according to any one of claims 6 to 8 when running the computer program.
A storage medium storing an executable program which, when executed by a processor, implements the business process method of any one of claims 1 to 4.
A storage medium storing an executable program which, when executed by a processor, implements the service processing method of claim 5.
A storage medium storing an executable program which, when executed by a processor, implements the business process method of any one of claims 6 to 8.