WO2018090800A1 - Procédé, dispositif et système d'établissement de connexion - Google Patents

Procédé, dispositif et système d'établissement de connexion Download PDF

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Publication number
WO2018090800A1
WO2018090800A1 PCT/CN2017/107698 CN2017107698W WO2018090800A1 WO 2018090800 A1 WO2018090800 A1 WO 2018090800A1 CN 2017107698 W CN2017107698 W CN 2017107698W WO 2018090800 A1 WO2018090800 A1 WO 2018090800A1
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Prior art keywords
local
service
function entity
indication
address
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PCT/CN2017/107698
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English (en)
Chinese (zh)
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于游洋
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a connection establishment method, device, and system.
  • the 3GPP standards group developed the next generation mobile communication system (next generation system) network architecture at the end of 2016. It is a fifth generation (5rd generation, 5G) network architecture.
  • the architecture not only supports the wireless technology defined by the 3GPP standard group to access the 5G core network, but also supports the non-3GPP (non-3GPP) access technology to access the 5G core network.
  • the core network function of the 5G core network is divided into a user plane (UP) function and a control plane (CP) function.
  • the UP function entity is mainly responsible for packet data packet forwarding, quality of service (QoS) control, and accounting information statistics.
  • the CP function entity is responsible for delivering data packet forwarding policies and QoS control policies to the UP.
  • the established connection is a connection for a mobile service, and there is no connection establishment scheme for other services.
  • connection establishment method for the other services except the mobile service is not currently in the prior art.
  • the embodiment of the present application provides the following technical solutions:
  • the embodiment of the present application provides a connection establishment method, including: when a user equipment UE accesses a non-3rd generation partnership plan non-3GPP network, the control plane CP function entity acquires the service of the UE. And an authorization indication, the service authorization indication includes a local service authorization indication; the CP function entity acquires a local network protocol IP address of the UE according to the local service authorization indication; and the CP function entity sends the local IP address of the UE to the UE.
  • the problem of the connection establishment scheme for the services other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • the CP function entity acquires the local network protocol IP address of the UE according to the local service authorization indication, including: the CP function entity sends a non-3GPP access gateway N3G according to the local service authorization indication. At least one of the local service authorization indication, the local IP address request of the UE, or the local service policy information, the local service authorization indication, the local IP address request of the UE, or the local service policy information. For the N3G-GW to obtain the local IP address of the UE; the CP function entity receives the UE sent by the N3G-GW Local IP address.
  • the CP function entity may display the N3G-GW to allocate a local IP address to the UE, for example, send a local service authorization indication or a local IP address request of the UE to the N3G-GW, or implicitly indicate the N3G-GW.
  • the local IP address is allocated to the UE, for example, the local service policy information is sent to the N3G-GW, which is not specifically limited in this embodiment.
  • the local service policy information may include at least one of a local offload policy, a local service charging policy, or a local service QoS policy.
  • the local service charging policy may include a time-based charging statistics reporting policy or a traffic-based threshold class statistical information reporting policy;
  • the local service QoS policy may include a local service maximum bit rate MBR information or a local service guaranteed bit rate. GBR information.
  • the service authorization indication further includes a mobile service authorization indication; after the CP function entity obtains the service authorization indication of the UE, the method further includes: the CP function entity selects the UP function entity, and establishes for the UE The packet data unit PDU between the N3G-GW and the UP functional entity is connected. That is, the embodiment of the present application can not only establish the connection establishment of the local service, but also realize the connection establishment of the mobile service at the same time.
  • the CP function entity establishes a PDU connection between the N3G-GW and the UP function entity for the UE, including: the CP function entity acquires the full tunnel end identifier F-TEID of the UP function entity.
  • the F-TEID of the UP function entity includes an IP address of the UP function entity and a tunnel end point identifier TEID of the UP function entity; the CP function entity acquires an IP address of the UE; the CP function entity sends the UE to the UE And the F-TEID of the UP function entity is sent by the CP function entity to the N3G-GW, and the F-TEID of the UP function entity is stored by the N3G-GW; the CP function entity acquires the F of the N3G-GW - TEID, the F-TEID of the N3G-GW includes the IP address of the N3G-GW and the TEID of the N3G-GW; the CP function entity sends a PDU session update request message to the UP function entity, and the PDU session update request message carries The F-TEID of the N3G-GW is stored by the UP function entity for the F-TEID of the N3G-GW; the CP function entity receives the PDU session
  • the UE's IP address and mobile service indicate binding.
  • the local IP address of the UE is bound to the local service indication.
  • the embodiment of the present application does not specifically limit the binding form of the local IP address of the UE to the local service indication, and the binding form of the IP address of the UE and the mobile service indication, for example, two parameters may be defined in the attach response message.
  • One parameter is defined as the IP address of the mobile service, and one parameter is defined as the IP address of the local service; or, for example, it may be: four parameters are defined in the attach response message, one parameter is defined as the local IP address of the UE, and one parameter is used for The local IP address of the UE is indicated as the IP address of the local service; one parameter is defined as the IP address of the UE, and one parameter is used to indicate that the IP address of the UE is the IP address of the mobile service.
  • the method further includes: the CP function entity receiving the subscription data of the UE sent by the database entity, where the subscription data of the UE is used by the UE Access authorization and service authorization; the CP function entity obtains the service authorization indication of the UE, and the CP function entity determines the access authorization and service authorization of the UE according to the subscription data of the UE, and obtains the service authorization indication of the UE.
  • the service authorization indication of the UE may be obtained by the CP function entity according to the subscription data of the UE.
  • the CP function entity obtains the service authorization indication of the UE
  • the method includes: the CP function entity receives a service authorization indication of the UE sent by the database entity, where the service authorization indication of the UE is The subscription data of the UE is obtained after determining the access authorization and the service authorization of the UE, and the subscription data of the UE is used for the access authorization and service authorization of the UE. That is, in the embodiment of the present application, the database entity may obtain the service authorization indication of the UE according to the subscription data of the UE, and then send the service authorization indication of the UE to the CP function entity.
  • the subscription data of the UE is used for the access authorization and service authorization of the UE, and the method includes: the subscription data includes a network access mode parameter, where the network access mode parameter is set to a packet.
  • the switching domain or if the network access mode parameter is set to a packet switched domain or a voice service domain, or when there is non-3GPP subscription data, it indicates that the UE is allowed to access the core network from the currently accessed network, and the UE is allowed Use mobile and local businesses.
  • the subscription data of the UE is used for the access authorization and service authorization of the UE, and the method includes: the subscription data includes a network access mode parameter, where the network access mode parameter is set to a packet.
  • the switching domain or if the network access mode parameter is set to a packet switched domain or a voice service domain, or when there is non-3GPP subscription data, it indicates that the UE is allowed to access the core network from the currently accessed network, and the UE is allowed
  • the subscription service data further includes a local service authorization indication, it indicates that the UE is also allowed to use the local service; or if the subscription data does not include the local service unauthorized indication, the UE is also allowed to use the local service. .
  • the method further includes: the CP function entity receiving the current access type indication of the UE sent by the N3G-GW; the subscription data of the UE is used for access authorization and service authorization of the UE,
  • the method includes: the subscription data includes an access type indication, when the current access type indication is included in the access type indication, indicating that the UE is allowed to access the core network from the currently accessed network, and allowing the UE to use the mobile And the service data and the local service; or the subscription data includes an access type indication, when the current access type indication is included in the access type indication, indicating that the UE is allowed to access the core network from the currently accessed network, and Allowing the UE to use the mobile service, if the subscription data further includes a local service authorization indication, indicating that the UE is also allowed to use the local service; or if the subscription data does not include the local service unauthorized indication, indicating that the UE is also allowed Use local business.
  • the current access type indication is implemented by defining an access type parameter, or defining a transmission type parameter, or defining an access mode parameter, wherein the access type parameter or the parameter of the transmission type parameter
  • the value can be set to non-3GPP access, wireless fidelity WiFi access, local access, local home access, local enterprise access, or local public access; the parameter value of the access mode parameter can be set to be locally open. Mode, local closed mode, or local mixed mode.
  • the method before the CP function entity obtains the service authorization indication of the UE, the method further includes: the CP function entity receiving the local service request indication sent by the UE.
  • the CP function entity can send local service policy information or other information to the N3G-GW based on the local service request indication. That is to say, the CP functional entity sends the local service policy information or other information to the N3G-GW only after receiving the local service request indication.
  • the CP function entity can directly send the service policy information or other information to the N3G-GW, regardless of whether the UE needs local service policy information or other information, which can save the CP functional entity and the N3G.
  • the local service in the embodiment of the present application includes a fixed network service or a non-seamless wireless local area network WLAN offload service.
  • the embodiment of the present application provides a CP function entity, where the CP function entity has a function of implementing a CP function entity behavior in the foregoing method embodiment.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • an embodiment of the present application provides a CP functional entity, including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, and the processor is connected to the memory through the bus, when the CP When the functional entity is running, the processor executes the computer execution instruction stored in the memory to enable the CP function entity to execute A method of establishing a connection as in any one of the above first aspects.
  • an embodiment of the present application provides a computer storage medium for storing computer software instructions used by the CP functional entity, which includes a program designed to execute the foregoing aspects as a CP functional entity.
  • an embodiment of the present application provides a computer program, the computer program comprising instructions, when the computer program is executed by a computer, to cause a computer to perform the flow in the connection establishment method of any one of the above first aspects.
  • the embodiment of the present application provides a connection establishment method, including: when a user equipment UE accesses from a non-3rd generation partnership plan non-3GPP network, the non-3GPP access gateway N3G-GW receives Controlling at least one of a local service authorization indication of the UE, a local network protocol IP address request of the UE, or local service policy information sent by the CP function entity; the N3G-GW according to the local service authorization indication of the UE, the UE The at least one of the local IP address request or the local service policy information acquires a local IP address of the UE; the N3G-GW sends the local IP address of the UE to the CP function entity. Based on the solution, the problem of the connection establishment scheme for the services other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • the method further includes: receiving, by the N3G-GW, the local IP address of the UE sent by the CP function entity and a local service indication bound to the local IP address of the UE, and an IP address of the UE and a mobile service indication bound to the IP address of the UE; the N3G-GW sends the UE's local IP address to the UE and the UE The local service indication of the local IP address binding, and the IP address of the UE and the mobile service indication bound to the IP address of the UE.
  • the method further includes: receiving, by the N3G-GW, a service data packet sent by the UE, where the service data packet includes a source IP address; and determining, by the N3G-GW, the service data packet according to the source IP address. a mobile service data packet or a local service data packet; if the service data packet is a mobile service data packet, the N3G-GW sends the service data packet to the user plane UP functional entity; or, if the service data packet is a local service data packet, The N3G-GW sends the service data packet to the local service server.
  • the local service and the mobile service can be simultaneously provided for the UE, and a reasonable split between the two can be realized.
  • the method further includes: the N3G-GW receiving the IP address of the UE sent by the CP function entity; the N3G- The GW sends the IP address of the UE to the UE.
  • the method further includes: receiving, by the N3G-GW, a service data packet sent by the UE, where the service data packet includes an IP address of the UE, and a destination IP address, a destination port number, or a protocol type. At least one of the N3G-GW determines that the service data packet is mobile according to at least one of the destination IP address, the destination port number, or the protocol type, and the local configuration information or the local service policy information.
  • the N3G-GW sends the service data packet to the user plane UP functional entity; or, if the service data packet is a local service data packet, After the N3G-GW replaces the IP address of the UE with the local IP address of the UE, the service data packet is sent to the local service server; and the N3G-GW stores the correspondence between the IP address of the UE and the local IP address of the UE. relationship.
  • the UE obtains the IP address of the UE, whether the local service authorization or the mobile service authorization, and the UE does not need to perceive the service type.
  • the service data packet is sent to the N3G-GW, the source IP address of the service data packet is the same, which is the IP address of the UE, and the N3G-GW distinguishes the mobile service from the local service based on the destination IP address, the port number, or the protocol type. Data shunting is implemented, which simplifies the operation of the UE.
  • the method further includes: the N3G-GW receiving a downlink service data packet, where the downlink service data packet includes a local IP address of the destination UE; and the N3G-GW replaces the local IP address of the destination UE with After the IP address of the destination UE, the downlink service data packet is sent to the target UE.
  • the embodiment of the present application provides a non-3rd generation partnership plan non-3GPP access gateway N3G-GW, and the N3G-GW has a function of implementing the N3G-GW behavior in the foregoing method embodiment.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the embodiment of the present application provides a non-3rd generation partnership plan non-3GPP access gateway N3G-GW, including: a processor, a memory, a bus, and a communication interface; the memory is configured to store a computer execution instruction, The processor is connected to the memory through the bus, and when the N3G-GW is running, the processor executes the computer-executed instruction stored in the memory, so that the N3G-GW performs the connection establishment according to any one of the foregoing sixth aspects. method.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the non-3rd Generation Partnership Project non-3GPP access gateway N3G-GW, which is configured to execute the foregoing The program designed for the N3G-GW.
  • the embodiment of the present application provides a computer program, the computer program comprising instructions, when the computer program is executed by a computer, causing the computer to perform the flow in the connection establishment method of any one of the sixth aspects.
  • the embodiment of the present application provides a service establishment system, where the service establishment system includes a control plane CP function entity and a database entity; wherein, when the user equipment UE is connected from a non-3rd generation partnership program non-3GPP network In the case of the entry, the database entity obtains the subscription data of the UE, determines the access authorization and the service authorization of the UE according to the subscription data of the UE, and obtains the service authorization indication of the UE, and then sends the service of the UE to the CP function entity.
  • An authorization indication where the service authorization indication includes a local service authorization indication; the CP function entity receives a service authorization indication of the UE sent by the database entity, and obtains a local network protocol IP address of the UE according to the local service authorization indication, and obtains the UE Send the IP address of the UE.
  • FIG. 1 is a schematic diagram of a 5G network architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a computer device according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram 1 of interaction of a connection establishment method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram 2 of interaction of a connection establishment method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram 3 of interaction of a connection establishment method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram 4 of interaction of a connection establishment method according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram 1 of a CP functional entity according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram 2 of a CP functional entity according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram 1 of an N3G-GW according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram 2 of an N3G-GW according to an embodiment of the present application.
  • FIG. 1 it is a 5G network architecture provided by an embodiment of the present application.
  • the architecture not only supports the wireless technology defined by the 3GPP standard group to access the 5G core network, but also supports the non-3GPP access technology to access the 5G core network.
  • the access point accesses the 5G core network through a radio access network (RAN) access point.
  • the RAN access point communicates with the CP functional entity of the 5G core network through the next generation network interface (NG) 2, and communicates with the UP functional entity of the 5G core network through the NG3;
  • the 5G core network is accessed through a non-3GPP access gateway (N-3G-GW).
  • the N3G-GW includes an N3G-GW control plane (N3G-GW-C) and an N3G-GW user plane (N3G-GW-U).
  • the N3G-GW-C communicates with the CP functional entity of the 5G core network through the NG2, N3G-GW.
  • -U communicates with the UP functional entity of the 5G core network through NG3.
  • the CP function entity communicates with the application function (AF) entity of the 5G core network through the NG5, and sends a packet forwarding policy, a QoS control policy, and the like to the UP function entity through the NG4; the UP function entity passes the NG6. It communicates with the data network (DN) entity of the 5G core network, and is responsible for packet data packet forwarding, QoS control, and accounting information statistics.
  • AF application function
  • DN data network
  • the above 5G network architecture may further include a database entity for supporting the main body of an internet protocol (IP) multimedia subsystem (IP) network entity that processes or invokes the session.
  • IP internet protocol
  • IP internet protocol
  • User database It includes user profiles, performs user authentication and authorization, and provides information about the user's physical location, similar to the global system for mobile communication (GSM) home location register.
  • GSM global system for mobile communication
  • the functions provided by the database entity include the IP multimedia function, or the home location register (HLR) function required for the packet switched (PS) domain, and/or the HLR required for the call service (CS) domain.
  • the information that the database entity can process includes one or more of the following information: user identification, numbering and address information; user security information, ie network access control information for authentication and authorization; user positioning information, ie database entity support User registration, storage location information; user list information, etc.
  • the database entity is mainly used to provide the subscription data of the UE when the UE accesses from the non-3GPP network, and is used by the CP function entity or the database entity to determine the access authorization of the UE according to the subscription data.
  • Business authorization is mainly used to provide the subscription data of the UE when the UE accesses from the non-3GPP network, and is used by the CP function entity or the database entity to determine the access authorization of the UE according to the subscription data.
  • modules or network entities may be included in the foregoing 5G network architecture, which is not specifically limited in this embodiment of the present application.
  • the UE involved in the present application may include various handheld devices with wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem, and various forms.
  • UE mobile station
  • terminal terminal equipment
  • soft terminal terminal
  • the devices mentioned above are collectively referred to as user equipments or UEs.
  • the N3G-GW may also be replaced by a next generation packet data gateway (NG-PDG) or a non-3GPP interworking function (N3IWF) entity; It may be replaced with a home subscriber server (HSS) or a user subscription database (USD); the CP functional entity may also be replaced with a CP function, and the UP functional entity may be replaced with a UP. Function; or, the CP functional entity may be replaced by a CP, the UP functional entity may also be replaced by UP, etc., which are uniformly described herein, and will not be described below.
  • NG-PDG next generation packet data gateway
  • N3IWF non-3GPP interworking function
  • HSS home subscriber server
  • USD user subscription database
  • the CP functional entity may also be replaced with a CP function
  • the UP functional entity may be replaced with a UP. Function
  • the CP functional entity may be replaced by a CP
  • the UP functional entity may also be replaced by UP, etc.,
  • non-3GPP access may also be defined as a non-next Gen RAN access technology, that is, an access other than the next Gen RAN. It is not specifically limited in itself, and a unified description will be made here, and will not be described below.
  • any one of the above-mentioned 5G network architectures may be implemented by one physical device or multiple physical devices;
  • the functional nodes or network elements, such as the CP functional entity and the UP functional entity may be implemented by different physical devices, or may be implemented by the same physical device, which is not specifically limited in this embodiment of the present application. That is, it can be understood that any one of the above-mentioned 5G network architectures, such as a CP function entity or an UP function entity, may be a logical function module or a plurality of entities in the entity device.
  • a logical function module of the device is not specifically limited in this embodiment of the present application.
  • the CP functional entity and the N3G-GW in FIG. 1 can be implemented by the computer device (or system) in FIG. 2.
  • FIG. 2 is a schematic diagram of a computer device according to an embodiment of the present application.
  • the computer device 200 includes at least one processor 201, a communication bus 202, a memory 203, and at least one communication interface 204.
  • the processor 201 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the execution of the program of the present application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication bus 202 can include a path for communicating information between the components described above.
  • the communication interface 204 uses devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • devices such as any transceiver for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 203 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory 203 is used to store application code for executing the solution of the present application, and is controlled by the processor 201 for execution.
  • the processor 201 is configured to execute application code stored in the memory 203 to implement connection establishment of the present application.
  • processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG.
  • computer device 200 can include multiple processors, such as processor 201 and processor 208 in FIG. Each of these processors can be a single-CPU processor or a multi-core processor.
  • a processor herein may refer to one or more devices, circuits, and/or processing cores for processing data, such as computer program instructions.
  • computer device 200 may also include an output device 205 and an input device 206.
  • Output device 205 is in communication with processor 201 and can display information in a variety of ways.
  • the output device 205 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.
  • Input device 206 is in communication with processor 201 and can accept user input in a variety of ways.
  • input device 206 can be a mouse, keyboard, touch screen device or sensing device, and the like.
  • the computer device 200 described above can be a general purpose computer device or a special purpose computer device.
  • the computer device 200 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, an embedded device, or have FIG. A device of similar structure.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of computer device 200.
  • FIG. 3 is a schematic flowchart of a connection method provided by an embodiment of the present application. The description is based on the case where the UE accesses the non-3GPP network in the 5G network architecture shown in FIG. 1 , and relates to interaction between the UE, the N3G-GW, the UP functional entity, the CP functional entity, and the database entity. Including the following steps:
  • the UE establishes a connection with the non-3GPP access point, and sends an attach request message or an authentication request message (such as an extended authentication protocol (EAP) to the N3G-GW through the non-3GPP access point. a message) to cause the N3G-GW to receive the attach request message or the authentication request message.
  • an attach request message or an authentication request message such as an extended authentication protocol (EAP)
  • EAP extended authentication protocol
  • the N3G access point may be, for example, a wireless-fidelity (WiFi) access point (AP) or a WiFi access controller (Access Control, AC).
  • WiFi wireless-fidelity
  • AP access point
  • AC WiFi access controller
  • the foregoing attach request message or the authentication request message includes a UE identifier, where the UE identifier is an identity identifier when the UE accesses the network, that is, a network access identifier (NAI) of the UE.
  • NAI network access identifier
  • the UE identifier includes a UE temporary identifier or a UE permanent identifier.
  • the UE permanent identifier may be an international mobile subscriber identification number (IMSI).
  • the attach request message or the authentication request message may further include a local service request indication, where the local service request indication is used to request a local service.
  • the CP function entity can send local service policy information or other information to the N3G-GW based on the local service request indication. That is to say, the CP functional entity sends the local service policy information or other information to the N3G-GW only after receiving the local service request indication.
  • the CP function entity can directly send the service policy information or other information to the N3G-GW, regardless of whether the UE needs local service policy information or other information, which can save the CP functional entity and the N3G.
  • the local service in the embodiment of the present application includes but is not limited to a fixed network service or a non-seamless WLAN offload service. It can be understood by those skilled in the art that, in the embodiment of the present application, when the local service is specifically a fixed network service, the following “local” may be replaced by “fixed network”, for example, when the local service is specifically a fixed network service.
  • the local access described below is actually a fixed network access.
  • the following local home access is actually a fixed network home access, etc.; when the local service is specifically a non-seamless WLAN offload service (non-seamless WLAN) Offload), the following "local” can be replaced with "non-seamless WLAN offload”.
  • the local service is specifically a non-seamless WLAN offload service
  • the following local access actually For the non-seamless WLAN offload service access
  • the following local home access is actually a non-seamless WLAN offload service home access, and so on, which is uniformly described herein, and will not be described below.
  • the above-mentioned local service may also be defined as a non-seamless service.
  • the name of the application itself is not specifically limited, and is uniformly described herein, and details are not described herein again.
  • the following steps in the embodiment of the present application will be described by taking an example that the message sent by the UE to the N3G-GW is an attach request message.
  • the attachment request message may be replaced with an authentication request message, such as an EAP message, which is uniformly described herein, and is not described here.
  • the N3G-GW identifies an access identifier of the UE, and generates an indication of a current access type of the UE according to the access identifier.
  • the N3G-GW-U in the N3G-GW identifies the access identifier of the UE, and the access identifier may be, for example, an access point identifier or a circuit ID.
  • the N3G-GW-U also identifies the attach request message and sends the attach request message and the access identifier of the UE to the N3G-GW-C.
  • the N3G-GW-C receives the attach request message and the access identifier sent by the N3G-GW-U, and generates a corresponding access type indication based on the access identifier.
  • the embodiment of the present application does not specifically limit how the N3G-GW-C generates the access type indication, and the possible implementation manner may be, for example, the mapping between the access identifier and the access type indication configured in the N3G-GW, the N3G - GW-C generates a corresponding access type indication based on the access identifier and the corresponding relationship.
  • the implementation manner of the access type indication includes, but is not limited to, the following definition manners:
  • the access type indication is implemented by defining an access type parameter or defining a transmission type parameter.
  • the parameter value of the access type parameter or the transmission type parameter may be set to non-3GPP access, WiFi access, local access, local home access, local enterprise access, or local public access.
  • the access type indication is implemented by defining an access mode parameter.
  • the parameter value of the access mode parameter may be set to a local open mode, a local closed mode, or a local mixed mode.
  • the N3G-GW sends an NG2 interface message to the CP function entity, so that the CP function entity receives the NG2 interface message.
  • the NG2 interface message carries an attach request message sent by the UE and a current access type indication of the UE obtained in step S302.
  • the NG2 interface message may be, for example, a connection setup request message, or an NG2 message or an NG2 authentication (AUTH) request message or an uplink non-access stratum (NAS) transport (uplink NAS transport) request message, and the like. This embodiment of the present application does not specifically limit this.
  • the NG2 AUTH request message sent by the N3G-GW to the CP function entity in FIG. 3 is taken as an example of the NG2 AUTH request message.
  • the NG2 AUTH request message may be replaced by a connection establishment request message or an NG2 message or an uplink NAS transmission request message or other NG2 interface message, which is uniformly described herein, and details are not described herein again.
  • the CP function entity sends an authentication request to the database entity, so that the database entity receives the authentication request.
  • the authentication request may be a subscription data acquisition message or a update location request message, which is not specifically limited in this embodiment of the present application.
  • the above message includes the UE permanent identity.
  • the UE permanent identifier may be obtained by using the attach request message in step S301, or may be obtained according to the UE temporary identifier carried in the attach request message in step S301, which is not specifically limited in this embodiment of the present application.
  • the above-mentioned message may also carry an access type indication, which is not specifically limited in this embodiment of the present application.
  • the database entity acquires subscription data of the UE according to the permanent identifier of the UE, where the subscription data is used for access authorization and service authorization of the UE.
  • the subscription data is used for the access authorization and the service authorization of the UE, and specifically includes:
  • the subscription data includes a network access mode parameter, wherein if the network access mode parameter is set to a PS domain, or if the network access mode parameter is set to a packet switched domain (PS domain) Or a voice service domain (CS domain), or when there is non-3GPP subscription data, it means that the UE is allowed to access the core network from the currently accessed network, and allows the UE to use the mobile service and the local service.
  • PS domain packet switched domain
  • CS domain voice service domain
  • the subscription data is used for the access authorization and the service authorization of the UE, and specifically includes:
  • the subscription data includes a network access mode parameter, wherein if the network access mode parameter is set to a PS domain, or if the network access mode parameter is set to a PS domain Or the voice service domain (CS domain), or the presence of non-3GPP subscription data, indicates that the UE is allowed to access the core network from the currently accessed network, and allows the UE to use the mobile service. If the local service authorization indication is also included in the subscription, it indicates that the UE is also allowed to use the local service; or if the local service non-authorization indication is not included in the subscription, it indicates that the UE is also allowed to use the local service.
  • the subscription data is used for the access authorization and the service authorization of the UE, which may include:
  • the subscription data includes an access type indication, and when the access type indication includes the current access type indication of the UE carried in the authentication request in step S304, the user is allowed to access the core network from the currently accessed network. And allow the UE to use mobile services and local services.
  • the subscription data is used for the access authorization and the service authorization of the UE, which may include:
  • the subscription data includes an access type indication, and when the access type indication includes the current access type indication of the UE carried in the authentication request in step S304, the user is allowed to access the core network from the currently accessed network. And allow the UE to use the mobile service. If the local service authorization indication is also included in the subscription, it indicates that the UE is also allowed to use the local service; or if the local service non-authorization indication is not included in the subscription, it indicates that the UE is also allowed to use the local service.
  • the mobile service in the embodiment of the present application specifically refers to a service provided by a mobile operator
  • the local service specifically refers to a service provided by a local service operator or a fixed network operator, and is uniformly described herein. No longer.
  • the database entity sends an authentication response to the CP function entity, so that the CP function entity receives the authentication response.
  • the authentication response here may specifically be a subscription data response message; if the authentication request in step S304 is specifically an update location request (update location request)
  • the authentication response here may be an update location response message, which is not specifically limited in this embodiment of the present application. Among them, the above message includes subscription data.
  • the CP function entity determines, according to the subscription data of the UE, the access authorization and service authorization of the UE, and obtains a service authorization indication.
  • the service authorization indication in the embodiment of the present application may be at least one of a local service authorization indication or a mobile service authorization indication, that is, may be a local service authorization indication, may be a mobile service authorization indication, or may be a local service.
  • the authorization indication and the mobile service authorization indication are not specifically limited in this embodiment of the present application.
  • the CP function entity After the CP function entity obtains the service authorization indication, the CP function entity performs the following processing according to the service authorization indication:
  • the CP function entity sends an NG2 interface message to the N3G-GW according to the local service authorization indication, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message includes at least one of local service policy information, a local IP address request of the UE, or a local service authorization indication.
  • the local service policy information may include at least one of a local offload policy, a local service charging policy, or a local service QoS policy.
  • the local service charging policy may include a time-based charging statistics reporting policy or a traffic-based threshold class statistical information reporting policy;
  • the local service QoS policy may include a local service maximum bit rate (MBR) information, or Local service guarantee bit rate (GBR) information.
  • MLR local service maximum bit rate
  • GRR Local service guarantee bit rate
  • the NG2 interface message in step S303 is a connection establishment request message
  • the NG2 interface message in step S308a may be, for example, a connection establishment response message
  • the NG2 interface message in step S303 is an NG2 message
  • the NG2 in step S308a The interface message may be, for example, an NG2 message; if the NG2 interface message in step S303 is an NG2 authentication (AUTH) request message, the NG2 interface message in step S308a may be, for example, an NG2 AUTH response message; if NG2 in step S303
  • the interface message is an uplink NAS transmission request message, and the NG2 interface message in step S308a may be, for example, an uplink NAS transmission response message.
  • the S309a and the N3G-GW obtain at least one of the local service policy information, the local IP address request of the UE, or the local service authorization indication from the NG2 interface message, and according to the local service policy information, the local IP address request of the UE, or the local service authorization indication. At least one of the UEs obtains the local IP address of the UE.
  • the local IP address of the UE may be allocated by the N3G-GW to the UE.
  • the local IP address of the UE may be requested by the N3G-GW to the dynamic host configuration protocol (DHCP) server. This is not specifically limited.
  • DHCP dynamic host configuration protocol
  • the N3G-GW may store at least one of the local service policy information or the local service authorization indication; or If the NG2 interface message in the step S308a includes the local IP address request of the UE, the N3G-GW may generate a local service authorization indication according to the local IP address request of the UE and store the local service authorization indication, which is not specifically limited in this embodiment of the present application.
  • the N3G-GW sends an NG2 interface message to the CP function entity, so that the CP function entity receives the NG2 interface message.
  • the NG2 interface message carries the local IP address of the UE.
  • the NG2 interface message may be, for example, a connection setup request message, or an NG2 message or an NG2 AUTH request message or an uplink NAS transport request message, which is not specifically limited in this embodiment of the present application.
  • the NG2 AUTH request message sent by the N3G-GW to the CP function entity in FIG. 3 is taken as an example of the NG2 AUTH request message.
  • the NG2 AUTH request message may be replaced by a connection establishment request message or an NG2 message or an uplink NAS transmission request message or other NG2 interface message, which is uniformly described herein, and details are not described herein again.
  • the S311a, the CP function entity sends an NG2 interface message to the N3G-GW, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message encapsulates an attach response message.
  • the attachment response message includes the local IP address of the UE.
  • the NG2 interface message in step S308a may be, for example, a connection establishment response message; if the NG2 interface message in step S303 is an NG2 message, NG2 in step S308a
  • the interface message may be, for example, an NG2 message; if the NG2 interface message in step S303 is an NG2 authentication (AUTH) request message, the NG2 interface message in step S308a may be, for example, an NG2 AUTH response message; if NG2 in step S303
  • the interface message is an uplink NAS transmission request message, and the NG2 interface message in step S308a may be, for example, an uplink NAS transmission response message.
  • the N3G-GW obtains an attach response message from the NG2 interface message, and sends an attach response message to the UE, so that the UE receives the attach response message.
  • connection establishment process in the scenario where the service authorization indication includes only the local service authorization indication ends.
  • the embodiment of the present application provides a method for establishing a connection of a local service. Based on the solution, the problem of the connection establishment scheme for the service other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • the UE sends a local service data packet to the N3G-GW, so that the N3G-GW receives the local service data packet.
  • the local service data packet may include other information such as a local IP address, a destination IP address, a source port number, a destination port number, or a protocol type of the UE.
  • a local IP address a local IP address
  • a destination IP address a source port number
  • a destination port number a protocol type of the UE.
  • the S314a and the N3G-GW parse the local service data packet, perform policy control on the local service data packet based on the stored local service policy information, and send the local service data packet to the local service server.
  • routing of local service data packets can be implemented.
  • Scenario B When the service authorization indication includes the local service authorization indication and the mobile service authorization indication, perform the following steps:
  • the S308b and the CP functional entity select the UP functional entity.
  • the CP function entity may select the UP function entity based on factors such as the current load status of the UP function entity, the service type supported by the UP function entity, and the location information of the UP function entity, and the location information of the UP function entity. No specific limitation.
  • the CP function entity sends a packet data unit (PDU) session establishment request message to the UP function entity, so that the UP function entity receives the PDU session establishment request message.
  • PDU packet data unit
  • the PDU session establishment request message may include a fully qualified tunnel endpoint identifier (F-TEID) of the UP function entity allocated by the CP function entity to the UP function entity, where the F-TEID includes the UP function entity.
  • F-TEID fully qualified tunnel endpoint identifier
  • IP address and tunnel endpoint ID of the UP functional entity tunnel endpoint Identifier, TEID).
  • the F-TEID of the UP function entity is used to search for the user context, that is, the specific processing board (the board corresponding to the TEID) of the specific device (the device corresponding to the IP address) where the user context information is located.
  • the F-TEID of the UP function entity may be the F-TEID of the device granularity, that is, the IP address of the UP functional entity is the IP address of the device granularity, and the TEID of the UP functional entity is the TEID of the device granularity;
  • the TEID may also be the F-TEID of the session granularity, that is, the IP address of the UP functional entity is the IP address of the session granularity, and the TEID of the UP functional entity is the TEID of the session granularity, which is not specifically limited in this embodiment of the present application.
  • the PDU session establishment request message may include an IP address of a UE allocated by the CP function entity for the UE, where the IP address of the UE is used for performing a mobile service.
  • the PDU session establishment request message may further include a UE identifier, where the UE identifier is used by the UP function entity to identify the UE, and performs UE-level session management.
  • the UP function entity sends a PDU session establishment response message to the CP function entity, so that the CP function entity receives the PDU session establishment response message.
  • the PDU session establishment response message in the step S310b includes the UP function entity as the UP function.
  • the F-TEID of the UP function entity assigned by the entity That is to say, in the embodiment of the present application, the F-TEID of the UP function entity may be allocated by the CP function entity, or may be allocated by the UP function entity itself, which is not specifically limited in this embodiment of the present application.
  • the PDU session establishment response message in the step S310b includes the UP function entity being allocated to the UP function entity.
  • the IP address of the UE may be allocated by the CP function entity, or may be allocated by the UP function entity, which is not specifically limited in this embodiment of the present application.
  • the CP function entity sends an NG2 interface message to the N3G-GW, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message includes an F-TEID of the UP function entity, and the NG2 interface message includes at least one of local service policy information, a local IP address request of the UE, or a local service authorization indication.
  • the content of the local service policy information is not specifically limited in the embodiment of the present application. For an exemplary reference, refer to the description in step S308a.
  • the NG2 interface message may further include a mobile service authorization indication.
  • the NG2 interface message in step S303 is a connection establishment request message
  • the NG2 interface message in step S311b may be, for example, a connection establishment response message
  • the NG2 interface message in step S303 is an NG2 message
  • NG2 in step S311b The interface message may be, for example, an NG2 message; if the NG2 interface message in step S303 is an NG2 authentication (AUTH) request message, the NG2 interface message in step S311b may be, for example, an NG2 AUTH response message; if NG2 in step S303
  • the interface message is an uplink NAS transmission request message, and the NG2 interface message in step S311b may be, for example, an uplink NAS transmission response message.
  • the N3G-GW obtains at least one of local service policy information, a local IP address request of the UE, or a local service authorization indication from the NG2 interface message, and according to local service policy information, a local IP address request of the UE, or a local service authorization indication. And obtaining, by the N3G-GW, the F-TEID of the UP function entity from the NG2 interface message, and storing the F-TEID of the UP function entity.
  • the local IP address of the UE may be allocated by the N3G-GW to the UE; or the local IP address of the UE may be requested by the N3G-GW to the dynamic host configuration protocol (DHCP) server.
  • DHCP dynamic host configuration protocol
  • the N3G-GW may store at least one of the local service policy information or the local service authorization indication; or If the NG2 interface message in the step S311b includes the local IP address request of the UE, the N3G-GW may generate a local service authorization indication according to the local IP address request of the UE and store the local service authorization indication, which is not specifically limited in this embodiment of the present application.
  • the N3G-GW sends an NG2 interface message to the CP function entity, so that the CP function entity receives the NG2 interface message.
  • the NG2 interface message carries the local IP address of the UE.
  • the NG2 interface message may be, for example, a connection setup request message, or an NG2 message or an NG2 AUTH request message or an uplink NAS transport request message, which is not specifically limited in this embodiment of the present application.
  • the NG2 AUTH request message sent by the N3G-GW to the CP function entity in FIG. 3 is taken as an example of the NG2 AUTH request message.
  • the NG2 AUTH request message may be replaced by a connection establishment request message or an NG2 message or an uplink NAS transmission request message or other NG2 interface message, which is uniformly described herein, and details are not described herein again.
  • the N3G-GW may allocate N3G to the N3G-GW based on the mobile service authorization indication or the F-TEID of the UP function entity.
  • the F-TEID of the GW, the F-TEID of the N3G-GW includes the IP address of the N3G-GW and the TEID of the N3G-GW.
  • the NG2 interface message in the step S313b may include the F-TEID of the N3G-GW.
  • the F-TEID of the N3G-GW is used to search for the user context, that is, the specific processing board (the board corresponding to the TEID) of the specific device (the device corresponding to the IP address) where the user context information is located.
  • the F-TEID of the N3G-GW may be the F-TEID of the device granularity, that is, the IP address of the N3G-GW is the IP address of the device granularity, and the TEID of the N3G-GW is the TEID of the device granularity; the N3G-GW
  • the F-TEID may also be the F-TEID of the session granularity, that is, the IP address of the N3G-GW is the IP address of the session granularity, and the TEID of the N3G-GW is the TEID of the session granularity, which is not specifically limited in this embodiment of the present application. .
  • the CP function entity sends a PDU session modification request message to the UP function entity, so that the UP function entity receives the PDU session update request message.
  • the PDU session update request message carries the F-TEID of the N3G-GW.
  • the F-TEID of the N3G-GW may be the F-TEID of the N3G-GW included in the NG2 interface message in the step S313b, or may be the F-TEID of the N3G-GW allocated by the CP function entity to the N3G-GW.
  • the application examples are not specifically limited thereto.
  • the UP function entity sends a PDU session modification response message to the CP function entity, so that the CP function entity receives the PDU session update response message.
  • the CP function entity sends an NG2 interface message to the N3G-GW, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message encapsulates an attach response message.
  • the attach response message includes a local IP address of the UE and a local service indication bound to the local IP address of the UE, and an IP address of the UE and a mobile service indication bound to the IP address of the UE.
  • the local service indication may be, for example, a local service identity, which may be, for example, access point name (APN) information.
  • the embodiment of the present application does not specifically limit the binding form of the local IP address of the UE to the local service indication, and the binding form of the IP address of the UE and the mobile service indication, for example, two parameters may be defined in the attach response message.
  • One parameter is defined as the IP address of the mobile service, and one parameter is defined as the IP address of the local service; or, for example, Therefore, four parameters are defined in the attach response message, one parameter is defined as the local IP address of the UE, and one parameter is used to indicate that the local IP address of the UE is the IP address of the local service; one parameter is defined as the IP address of the UE, one The parameter is used to indicate that the IP address of the UE is an IP address of the mobile service.
  • the NG2 interface message in step S316b may be, for example, a connection establishment response message; if the NG2 interface message in step S313b is an NG2 message, NG2 in step S316b
  • the interface message may be, for example, an NG2 message; if the NG2 interface message in step S313b is an NG2 authentication (AUTH) request message, the NG2 interface message in step S316b may be, for example, an NG2AUTH response message; if the NG2 interface in step S313b
  • the message is an uplink NAS transmission request message, and the NG2 interface message in step S316b may be, for example, an uplink NAS transmission response message.
  • the N3G-GW obtains an attach response message from the NG2 interface message, and sends an attach response message to the UE, so that the UE receives the attach response message.
  • steps S314b-S315b and steps S316b-S317b there is no necessary sequence of execution between steps S314b-S315b and steps S316b-S317b in the embodiment of the present application, and steps S314b-S315b may be performed first, and then steps S316b-S317b may be performed; Steps S316b-S317b, and then steps S314b-S315b are performed; steps S314b-S315b and steps S316b-S317b are also performed at the same time, which is not specifically limited in this embodiment of the present application.
  • connection establishment process in the scenario where the service authorization indication includes the local service authorization indication and the mobile service authorization indication ends.
  • the method for establishing a connection between a mobile service and a local service is provided by the embodiment of the present application. Based on the solution, the problem that the connection establishment solution for other services except the mobile service is not currently implemented in the prior art can be solved, and the connection establishment of the local service is implemented. And the connection establishment of the mobile service.
  • S318b The UE sends a service data packet to the N3G-GW, so that the N3G-GW receives the service data packet.
  • the service data packet includes a source IP address.
  • the source IP address may be the IP address of the UE or the local IP address of the UE.
  • the service data packet may further include other information such as a destination IP address, a source port number, a destination port number, or a protocol type.
  • a destination IP address e.g., a IP address
  • a source port number e.g., a source port number
  • a destination port number e.g., a protocol type
  • the S319b and the N3G-GW parse the service data packet, obtain the source IP address, and determine the service data packet as the mobile service data packet or the local service data packet according to the source IP address.
  • the N3G-GW sends the service data packet to the UP function entity; or if the service data packet is the local service data packet, the N3G-GW uses the stored local service policy information to the local service data.
  • the packet performs policy control and sends a service packet to the local service server.
  • the local service and the mobile service can be simultaneously provided for the UE, and a reasonable split between the two can be realized.
  • the service authorization indication only includes the mobile service authorization indication
  • the connection establishment process may refer to the existing solution, and details are not repeatedly described herein.
  • connection establishment process when the service authorization indication includes the local service authorization indication and the mobile service authorization indication includes the connection establishment process when only the local service authorization indication is included in scenario A, and only the scenario C is included.
  • the connection establishment process at the time of the mobile service authorization indication is different from the connection establishment process when only the local service authorization indication is included and the existing connection establishment process including only the mobile service authorization indication.
  • the actions of the CP functional entities in the foregoing S304, S307, S308a, S311a, S308b, S309b, S311b, S314b, and S316b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to call the application code stored in the memory 203.
  • the embodiment of the present application does not impose any limitation on this.
  • the actions of the N3G-GW in the foregoing S302, S303, S309a, S310a, S312a, S314a, S312b, S313b, S317b, and S319b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to store the application stored in the memory 203.
  • the program code is executed, and the embodiment of the present application does not impose any limitation on this.
  • FIG. 4 it is a schematic flowchart of another connection method provided by an embodiment of the present application. The description is based on the case where the UE accesses the non-3GPP network in the 5G network architecture shown in FIG. 1 , and relates to interaction between the UE, the N3G-GW, the UP functional entity, the CP functional entity, and the database entity. Including the following steps:
  • the database entity determines, according to the subscription data of the UE, an access authorization and a service authorization of the UE, and obtains a service authorization indication.
  • the service authorization indication in the embodiment of the present application may be at least one of a local service authorization indication or a mobile service authorization indication, that is, may be a local service authorization indication, may be a mobile service authorization indication, or may be a local service.
  • the authorization indication and the mobile service authorization indication are not specifically limited in this embodiment of the present application.
  • the database entity sends an authentication response to the CP function entity, so that the CP function entity receives the authentication response.
  • the authentication response here may specifically be a subscription data response message; if the authentication request in step S404 is specifically an update location request (update location request)
  • the authentication response here may be an update location response message, which is not specifically limited in this embodiment of the present application.
  • the above message includes a service authorization indication.
  • the CP function entity After the CP function entity obtains the service authorization indication, the CP function entity performs the following processing according to the service authorization indication:
  • connection establishment process in the scenario where the service authorization indication includes only the local service authorization indication ends.
  • the embodiment of the present application provides a method for establishing a connection of a local service. Based on the solution, the problem of the connection establishment scheme for the service other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • routing of local service data packets can be implemented.
  • Scenario B When the service authorization indication includes the local service authorization indication and the mobile service authorization indication, perform the following steps:
  • connection establishment process in the scenario where the service authorization indication includes the local service authorization indication and the mobile service authorization indication ends.
  • the method for establishing a connection between a mobile service and a local service is provided by the embodiment of the present application. Based on the solution, the problem that the connection establishment solution for other services except the mobile service is not currently implemented in the prior art can be solved, and the connection establishment of the local service is implemented. And the connection establishment of the mobile service.
  • the local service and the mobile service can be simultaneously provided for the UE, and a reasonable split between the two can be realized.
  • the service authorization indication only includes the mobile service authorization indication
  • the connection establishment process may refer to the existing solution, and details are not repeatedly described herein.
  • the actions of the CP functional entities in the above S404, S408a, S411a, S408b, S409b, S411b, S414b, and S416b may be performed by the processor 201 in the computer device 200 shown in FIG. 2 calling the application code stored in the memory 203.
  • the embodiment of the present application does not impose any limitation on this.
  • the actions of the N3G-GW in the above S402, S403, S409a, S410a, S412a, S414a, S412b, S413b, S417b, and S419b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to store the application stored in the memory 203.
  • the program code is executed, and the embodiment of the present application does not impose any limitation on this.
  • the database entity determines the access authorization and service authorization of the UE based on the subscription data of the UE, and obtains a service authorization indication. Further, the database entity sends an authentication response to the CP function entity, so that the CP function entity receives the authentication response, where the authentication response carries the service authorization indication.
  • the authentication response sent by the database entity to the CP function entity carries the subscription data of the UE, and the CP function entity determines the access authorization and service authorization of the UE based on the subscription data of the UE, and obtains the service authorization. Instructions. This application does not specifically limit the manner in which the business authorization instructions are obtained.
  • FIG. 5 it is a schematic flowchart of another connection method provided by an embodiment of the present application. The description is based on the case where the UE accesses the non-3GPP network in the 5G network architecture shown in FIG. 1 , and relates to interaction between the UE, the N3G-GW, the UP functional entity, the CP functional entity, and the database entity. Including the following steps:
  • the CP function entity After the CP function entity obtains the service authorization indication, the CP function entity performs the following processing according to the service authorization indication:
  • connection establishment process in the scenario where the service authorization indication includes only the local service authorization indication ends.
  • the embodiment of the present application provides a method for establishing a connection of a local service. Based on the solution, the problem of the connection establishment scheme for the service other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • routing of local service data packets can be implemented.
  • Scenario B When the service authorization indication includes the local service authorization indication and the mobile service authorization indication, perform the following steps:
  • the S508b-S515b is similar to the S308b-S315b except that the local IP address of the UE that the N3G-GW sends to the CP functional entity in the step S513a may not carry the local IP address of the UE, and may not carry the local IP address of the UE. This example does not specifically limit this.
  • the CP function entity sends an NG2 interface message to the N3G-GW, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message encapsulates an attach response message.
  • the attachment response message includes the IP address of the UE.
  • the NG2 interface message in step S513b is a connection establishment request message
  • the NG2 interface message in step S516b may be, for example, a connection establishment response message; if the NG2 interface message in step S513b is an NG2 message, NG2 in step S516b.
  • the interface message may be, for example, an NG2 message; if the NG2 interface message in step S513b is an NG2 authentication (AUTH) request message, the NG2 interface message in step S516b may be, for example, an NG2AUTH response message; if the NG2 interface in step S513b
  • the message is an uplink NAS transmission request message, and the NG2 interface message in step S516b may be, for example, an uplink NAS transmission response message.
  • the N3G-GW obtains an attach response message from the NG2 interface message, and sends an attach response message to the UE, so that the UE receives the attach response message.
  • steps S514b-S515b and steps S516b-S517b there is no necessary execution sequence between steps S514b-S515b and steps S516b-S517b in the embodiment of the present application, and steps S514b-S515b may be performed first, and then steps S516b-S517b may be performed; Steps S516b-S517b, and then steps S514b-S515b are performed; steps S514b-S515b and steps S516b-S517b are also performed at the same time, which is not specifically limited in this embodiment of the present application.
  • connection establishment process in the scenario where the service authorization indication includes the local service authorization indication and the mobile service authorization indication ends.
  • the method for establishing a connection between a mobile service and a local service is provided by the embodiment of the present application. Based on the solution, the problem that the connection establishment solution for other services except the mobile service is not currently implemented in the prior art can be solved, and the connection establishment of the local service is implemented. And the connection establishment of the mobile service.
  • S518b The UE sends a service data packet to the N3G-GW, so that the N3G-GW receives the service data packet.
  • the service data packet includes at least one of an IP address of the UE, and a destination IP address, a destination port number, or a protocol type.
  • the S519b and the N3G-GW parse the service data packet, and obtain at least one of an IP address of the UE, and a destination IP address, a destination port number, or a protocol type. Further, the N3G-GW determines that the service data packet is a mobile service data packet or a local service data packet according to at least one of a destination IP address, a destination port number, or a protocol type, and at least one of local configuration information or local service policy information. .
  • the local configuration information is not specifically limited in the embodiment of the present application.
  • the local configuration information includes the correspondence between the service type (including the mobile service or the local service) and the service server IP address or the service port number, the protocol number, and the like.
  • the N3G-GW sends a service data packet to the UP function entity; or, if the service data packet is a local service data packet, the N3G-GW performs network address translation on the local service data packet (network The address translation, NAT) is converted and sent to the local server.
  • network The address translation, NAT network The address translation
  • the above NAT forwarding scheme includes the N3G-GW assigning each UE a different local IP address.
  • the N3G-GW replaces the source address of the local service data packet (in the embodiment of the present application, the source address of the local service data packet is the IP address of the UE) into the N3G.
  • the local IP address of the UE allocated by the GW, and the correspondence between the IP address of the UE and the local IP address of the UE is stored.
  • the N3G-GW replaces the destination address of the downlink service data packet with the original IP address of the destination UE. In this embodiment, the local IP address of the destination UE is replaced with the destination UE. IP address), and then send the downlink service data packet to the destination UE.
  • Another NAT conversion scheme is that the N3G-GW allocates the same local IP address to multiple UEs, but assigns a different port number to each UE.
  • the N3G-GW replaces the source address of the local service data packet (in the embodiment of the present application, the source address of the local service data packet is the IP address of the UE) into the N3G.
  • the local IP address of the UE allocated by the GW, the source port number is replaced with the unique port number allocated by the GW, and the correspondence between the IP address of the UE and the local IP address of the UE and the correspondence between the port numbers before and after the replacement are stored.
  • the N3G-GW After the N3G-GW receives the downlink service data packet, the N3G-GW replaces the destination address of the downlink service data packet with the original IP address of the destination UE according to the correspondence between the port numbers before and after the replacement (in the embodiment of the present application, the purpose is The local IP address of the UE is replaced with the IP address of the destination UE, and then the downlink service data packet is sent to the destination UE.
  • the local service and the mobile service can be simultaneously provided for the UE, and a reasonable split between the two can be realized.
  • the service authorization indication only includes the mobile service authorization indication
  • the connection establishment process may refer to the existing solution, and details are not repeatedly described herein.
  • the actions of the CP functional entities in the above S504, S507, S508a, S511a, S508b, S509b, S511b, S514b, and S516b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to call the application code stored in the memory 203.
  • the embodiment of the present application does not impose any limitation on this.
  • the actions of the N3G-GW in the foregoing S502, S503, S509a, S510a, S512a, S514a, S512b, S513b, S517b, and S519b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to call the application stored in the memory 203.
  • the program code is executed, and the embodiment of the present application does not impose any limitation on this.
  • connection establishment method in the scenario B of the embodiment shown in FIG. 5 and the process after the establishment of the service connection may also be referred to.
  • the embodiment shown in FIG. 5 refers to the embodiment shown in FIG. 5.
  • the difference from the scenario B of the embodiment shown in FIG. 3 or FIG. 4 is that, in the embodiment of the present application, whether the local service authorization or the mobile service authorization, the UE obtains the IP address of the UE, and the UE does not need to perceive the service type.
  • the service data packet is sent to the N3G-GW, the source IP address of the service data packet is the same, both are the IP addresses of the UE, and the N3G-GW distinguishes the mobile service from the local service based on the destination IP address, the port number, or the protocol type.
  • the data is offloaded, which simplifies the operation of the UE.
  • FIG. 6 a schematic flowchart of another connection method provided by an embodiment of the present application is shown. The description is based on the case where the UE accesses the non-3GPP network in the 5G network architecture shown in FIG. 1 , and relates to interaction between the UE, the N3G-GW, the UP functional entity, the CP functional entity, and the database entity. Including the following steps:
  • the CP function entity sends an NG2 interface message to the N3G-GW, so that the N3G-GW receives the NG2 interface message.
  • the NG2 interface message encapsulates an attach response message.
  • the NG2 interface message in step S608 may be, for example, a connection establishment response message; if the NG2 interface message in step S603 is an NG2 message, NG2 in step S608.
  • the interface message may be, for example, an NG2 message; if the NG2 interface message in step S603 is an NG2 AUTH request message, the NG2 interface message in step S608 may be, for example, an NG2 AUTH response message; if the NG2 interface message in step S603 is an uplink NAS transmission If the message is requested, the NG2 interface message in step S608 may be, for example, an uplink NAS transmission response message.
  • the N3G-GW obtains an attach response message from the NG2 interface message, and sends an attach response message to the UE, so that the UE receives the attach response message.
  • the UE After completing the attach procedure, the UE sends the NAS signaling to the CP function entity, so that the CP function entity receives the NAS signaling.
  • the NAS signaling may include, for example, a PDU session establishment request message, where the PDU session establishment request message includes a UE identifier, where the UE identifier is used by the UP function entity to identify the UE, and performs UE granular session management.
  • the PDU session establishment request message may further include a local service request indication, where the local service request indication is used to request the local service.
  • the CP function entity After the CP function entity receives the NAS signaling, the CP function entity performs the service authorization indication obtained according to the above steps. Processing as follows:
  • the S611a-S 615a is similar to the S308a-S 312a. The only difference is that the attachment response message is replaced with the NAS message, which is not described herein again.
  • connection establishment process in the scenario where the service authorization indication includes only the local service authorization indication ends.
  • the embodiment of the present application provides a method for establishing a connection of a local service. Based on the solution, the problem of the connection establishment scheme for the service other than the mobile service in the prior art can be solved, and the connection establishment of the local service is implemented.
  • the method may further include the following steps:
  • routing of local service data packets can be implemented.
  • Scenario B When the service authorization indication includes the local service authorization indication and the mobile service authorization indication, perform the following steps:
  • the S611b-S620b is similar to the S308b-S317b. The only difference is that the attachment response message is replaced with the NAS message, which is not described herein again.
  • connection establishment process in the scenario where the service authorization indication includes the local service authorization indication and the mobile service authorization indication ends.
  • the method for establishing a connection between a mobile service and a local service is provided by the embodiment of the present application. Based on the solution, the problem that the connection establishment solution for other services except the mobile service is not currently implemented in the prior art can be solved, and the connection establishment of the local service is implemented. And the connection establishment of the mobile service.
  • the method may further include the following steps:
  • the local service and the mobile service can be simultaneously provided for the UE, and a reasonable split between the two can be realized.
  • the service authorization indication only includes the mobile service authorization indication
  • the connection establishment process may refer to the existing solution, and details are not repeatedly described herein.
  • the actions of the CP functional entities in the above S604, S607, S608, S611a, S614a, S611b, S612b, S614b, S617b, and S619b may be invoked by the processor 201 in the computer device 200 shown in FIG. 2 to store the application stored in the memory 203.
  • the program code is executed, and the embodiment of the present application does not impose any limitation on this.
  • the actions of the N3G-GW in the foregoing S602, S603, S609, S612a, S613a, S615a, S617a, S615b, S616b, S620b, and S622b may be stored in the memory 203 by the processor 201 in the computer device 200 shown in FIG.
  • the application code is executed, and the embodiment of the present application does not impose any limitation on this.
  • connection establishment may be performed by referring to the connection establishment manner of the embodiment shown in FIG. 6.
  • the embodiment of the present application is not described herein again.
  • the CP function entity establishes a service connection for the UE, and after the UE is attached to the network, the NAS message sent by the UE triggers the connection establishment of the service.
  • the connection establishment of the service occurs in the process of the UE attaching to the network.
  • the solution provided by the embodiment of the present application is mainly introduced from the perspective of interaction between the network elements.
  • the foregoing CP functional entity and the N3G-GW include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • CP functional entity and the N3G-GW include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • Those skilled in the art will readily recognize that the embodiments disclosed herein are described in connection with the embodiments disclosed herein.
  • the elements and algorithm steps of the various examples described herein can be implemented in a combination of hardware or hardware and computer software. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide the function modules of the CP function entity and the N3G-GW according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 7 shows a possible structural diagram of the CP functional entity involved in the foregoing embodiment
  • the CP functional entity 700 includes: an obtaining module 701 and sending Module 702.
  • the obtaining module 701 is configured to acquire, when the UE accesses from the non-3GPP network, a service authorization indication of the UE, where the service authorization indication includes a local service authorization indication.
  • the obtaining module 701 is further configured to obtain a local IP address of the UE according to the local service authorization indication.
  • the sending module 702 is configured to send a local IP address of the UE to the UE.
  • the acquiring module 701 acquiring the local IP address of the UE, including: sending the local service authorization indication, the local IP address request of the UE, or the UE to the N3G-GW according to the local service authorization indication, or At least one of the local service policy information, the local service authorization indication, the local IP address request of the UE, or the local service policy information is used by the N3G-GW to obtain the local IP address of the UE; receiving the N3G- The local IP address of the UE sent by the GW.
  • the service authorization indication further includes a mobile service authorization indication.
  • the CP functional entity 700 further includes a selection module 704 and an establishment module 705.
  • the selecting module 704 is configured to select an UP function entity after the acquiring module acquires the service authorization indication of the UE.
  • the establishing module 705 is configured to establish, for the UE, a PDU connection between the N3G-GW and the UP functional entity.
  • the establishing module 705 establishes a PDU connection between the N3G-GW and the UP functional entity for the UE, including: acquiring an F-TEID of the UP functional entity, where the F-TEID of the UP functional entity includes the UP function.
  • the N3G-GW stores the F-TEID of the UP function entity, and obtains the F-TEID of the N3G-GW, where the F-TEID of the N3G-GW includes the IP address of the N3G-GW and the TEID of the N3G-GW;
  • the UP function entity sends a PDU session update request message, the PDU session update request message carries the F-TEID of the N3G-GW, the UP function entity stores the F-TEID of the N3G-GW, and receives the PDU session sent by the UP function entity. Update the response message.
  • IP address of the UE and the mobile service indication are bound.
  • the local IP address of the UE is bound to the local service indication.
  • the CP functional entity further includes a receiving module 706.
  • the receiving module 706 is configured to receive the subscription data of the UE sent by the database entity before the acquiring module 701 obtains the service authorization indication of the UE, where the subscription data of the UE is used for the access authorization and service authorization of the UE.
  • the acquiring module 701 is configured to obtain the service authorization indication of the UE, and includes: determining, according to the subscription data of the UE, an access authorization and a service authorization of the UE, and obtaining a service authorization indication of the UE.
  • the obtaining, by the obtaining module 701, the service authorization indication of the UE includes: receiving, by the database entity, a service authorization indication of the UE, where the service authorization indication of the UE is that the database entity determines the UE according to the subscription data of the UE. After the access authorization and the service authorization are obtained, the subscription data of the UE is used for the access authorization and service authorization of the UE.
  • the CP functional entity further includes a receiving module 706.
  • the receiving module 706 is configured to receive a current access type indication of the UE that is sent by the N3G-GW.
  • the CP functional entity further includes a receiving module 706.
  • the receiving module 706 is configured to receive the local service request indication sent by the UE before the obtaining module 701 obtains the service authorization indication of the UE.
  • the local service includes a fixed network service or a non-seamless WLAN offload service.
  • FIG. 8 shows a possible structural diagram of the CP functional entity involved in the above embodiment, and the CP functional entity 800 includes: a processing module 801 and a communication module 802. .
  • the processing module 801 can be used to perform the operations that can be performed by the obtaining module 701, the selecting module 704, and the establishing module 705 of FIG. 7.
  • the communications module 802 can be used to perform the processing performed by the receiving module 706 and the sending module 702 in FIG. For details, refer to the embodiment shown in FIG. 7 , and details are not described herein again.
  • the CP functional entity is presented in the form of dividing each functional module corresponding to each function, or the CP functional entity is presented in the form of dividing each functional module in an integrated manner.
  • a “module” herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above. Device.
  • ASIC application-specific integrated circuit
  • the CP functional entity 700 or the CP functional entity 800 can take the form shown in FIG.
  • the obtaining module 701, the selecting module 704, the establishing module 705, the receiving module 706, and the sending module 702 in FIG. 7 can be implemented by the processor 201 and the memory 203 of FIG.
  • the selection module 704, the establishing module 705, and the receiving module 706 can be executed by the processor 201 to call the application code stored in the memory 203, which is not limited in this embodiment.
  • the processing module 801 and the communication module 802 in FIG. 8 may be implemented by the processor 201 and the memory 203 of FIG. 2.
  • the processing module 801 and the communication module 802 may be called by the processor 201 in the memory 203.
  • the stored application code is executed, and the embodiment of the present application does not impose any limitation on this.
  • the embodiment of the present application further provides a computer storage medium for storing computer software instructions used by the CP functional entity, which includes a program designed to execute the foregoing method embodiments. By executing the stored program, the connection establishment of the service can be realized.
  • FIG. 9 shows the above embodiment.
  • the N3G-GW 900 includes: a receiving module 901, an obtaining module 902, and a sending module 903.
  • the receiving module 901 is configured to: when the UE accesses from the non-3GPP network, receive the local service authorization indication of the UE sent by the CP function entity, the local network protocol IP address request of the UE, or the local service policy information. at least one.
  • the obtaining module 902 is configured to obtain a local IP address of the UE according to at least one of a local service authorization indication of the UE, a local IP address request of the UE, or the local service policy information.
  • the sending module 903 is configured to send the local IP address of the UE to the CP function entity.
  • the receiving module 901 is further configured to: after the sending module 903 sends the local IP address of the UE to the CP function entity, receive the local IP address of the UE sent by the CP function entity, and bind to the local IP address of the UE.
  • the sending module is further configured to send, by the UE, a local IP address of the UE and a local service indication bound to the local IP address of the UE, and an IP address of the UE and a mobile service indication bound to an IP address of the UE.
  • the N3G-GW 900 further includes a determining module 904.
  • the receiving module 901 is further configured to receive a service data packet sent by the UE, where the service data packet includes a source IP address.
  • the determining module 904 is configured to determine, according to the source IP address, the service data packet as a mobile service data packet or a local service data packet.
  • the sending module 903 is configured to send the service data packet to the UP function entity if the service data packet is a mobile service data packet, or send the service data packet to the local service server if the service data packet is a local service data packet. .
  • the receiving module 901 is further configured to: after the sending module 903 sends the local IP address of the UE to the CP function entity, receive the IP address of the UE sent by the CP function entity; the sending module 903 is further configured to: The IP address of the UE is sent to the UE.
  • the N3G-GW 900 further includes a determining module 904 and a replacement module 905.
  • the receiving module 901 is configured to receive a service data packet sent by the UE, where the service data packet includes an IP address of the UE, and at least one of a destination IP address, a destination port number, or a protocol type.
  • the determining module 904 is configured to determine, according to at least one of the destination IP address, the destination port number, or the protocol type, and the local configuration information or the local service policy information, the service data packet is mobile service data. Package or local business data package.
  • the sending module 903 is configured to: if the service data packet is a mobile service data packet, send the service data packet to the UP function entity; or, if the service data packet is a local service data packet, the replacement module 905 replaces the IP address of the UE After being the local IP address of the UE, the sending module 903 sends the service data packet to the local service server.
  • the storage module 906 is configured to store a correspondence between an IP address of the UE and a local IP address of the UE.
  • the receiving module 901 is further configured to receive a downlink service data packet, where the downlink service data packet includes a local IP address of the target UE.
  • the replacement module 905 is further configured to replace the local IP address of the destination UE with the IP address of the destination UE.
  • the sending module 903 is further configured to send the downlink service data packet to the destination UE.
  • FIG. 10 is a schematic diagram showing a possible structure of the N3G-GW involved in the foregoing embodiment, where the N3G-GW 1000 includes: a processing module 1001, a communication module 1002, and The storage module 1003.
  • the processing module 1001 can be used to perform the operations that can be performed by the obtaining module 902, the determining module 904, and the replacing module 905 in FIG. 9.
  • the communication module 1002 can be used to perform the processing performed by the receiving module 901 and the sending module 903 in FIG.
  • the storage module 1003 can be used to perform the operations that can be performed by the storage module 906 in FIG. 9.
  • FIG. 10 is a schematic diagram showing a possible structure of the N3G-GW involved in the foregoing embodiment, where the N3G-GW 1000 includes: a processing module 1001, a communication module 1002, and The storage module 1003.
  • the processing module 1001 can be used to perform the operations that can be performed by the obtaining module 902, the determining module 904, and the replacing module 905 in FIG. 9.
  • the N3G-GW is presented in the form of dividing each functional module corresponding to each function, or the N3G-GW is presented in a form that divides each functional module in an integrated manner.
  • a “module” herein may refer to an application-specific integrated circuit (ASIC), circuitry, a processor and memory that executes one or more software or firmware programs, integrated logic circuitry, and/or other functions that provide the functionality described above. Device.
  • ASIC application-specific integrated circuit
  • the N3G-GW 900 or N3G-GW 1000 may take the form shown in FIG.
  • the processing module 1001, the communication module 1002, and the storage module 1003 in FIG. 10 may be implemented by the processor 201 and the memory 203 of FIG. 2.
  • the processing module 1001, the communication module 1002, and the storage module 1003 may pass
  • the processor 201 is configured to execute the application code stored in the memory 203, and the embodiment of the present application does not impose any limitation thereon.
  • the embodiment of the present application further provides a computer storage medium for storing computer software instructions used by the N3G-GW, which includes a program designed to execute the foregoing method embodiments. By executing the stored program, the connection establishment of the service can be realized.
  • the embodiment of the present application further provides a computer program, which includes instructions, when the computer program is executed by a computer, to enable the computer to execute the flow of the foregoing method embodiment.
  • embodiments of the present application can be provided as a method, apparatus (device), or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can 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, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • These computer program instructions can also be stored in a specific manner capable of booting a computer or other programmable data processing device Working in a computer readable memory, causing instructions stored in the computer readable memory to produce an article of manufacture comprising instruction means implemented in a block or a flow of a flow or a flow and/or block diagram of the flowchart The function specified in the box.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

Un mode de réalisation de la présente invention concerne un procédé, un dispositif et un système destinés à établir une connexion pour au moins résoudre un problème dans l'état de la technique selon lequel il n'y a pas, actuellement, de solution d'établissement de connexion pour des services autres qu'un service mobile. Le procédé comprend les étapes suivantes : lorsqu'un équipement utilisateur (UE) obtient un accès à partir d'un réseau non conforme au projet de partenariat de troisième génération (non 3GPP), une entité de fonction de plan de commande (CP) obtient une indication d'autorisation de service de l'UE, l'indication d'autorisation de service comprenant une indication d'autorisation de service local ; l'entité de fonction CP obtient, en fonction de l'indication d'autorisation de service local, une adresse de protocole Internet (IP) locale de l'UE ; et l'entité de fonction CP envoie l'adresse IP locale de l'UE à l'UE. La présente invention peut s'appliquer au domaine technique des communications.
PCT/CN2017/107698 2016-11-21 2017-10-25 Procédé, dispositif et système d'établissement de connexion WO2018090800A1 (fr)

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