WO2018129807A1 - 通信方法、网络开放功能网元和控制面网元 - Google Patents

通信方法、网络开放功能网元和控制面网元 Download PDF

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Publication number
WO2018129807A1
WO2018129807A1 PCT/CN2017/077585 CN2017077585W WO2018129807A1 WO 2018129807 A1 WO2018129807 A1 WO 2018129807A1 CN 2017077585 W CN2017077585 W CN 2017077585W WO 2018129807 A1 WO2018129807 A1 WO 2018129807A1
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WIPO (PCT)
Prior art keywords
network element
information
terminal
application device
open function
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PCT/CN2017/077585
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English (en)
French (fr)
Inventor
陆伟
诸华林
靳维生
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华为技术有限公司
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Publication of WO2018129807A1 publication Critical patent/WO2018129807A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a communication method, a Network Exposure Function (NEF) network element, and a Control Plan (CP) network element.
  • NEF Network Exposure Function
  • CP Control Plan
  • the control plane network element serving the user's terminal can be based on the location of the terminal and the user plane (user plane) network element. Factors such as load balancing re-determine the user plane network element for the data flow of the terminal.
  • the user plane network element determined by the control plane network element according to the location of the terminal and the load balancing of the user plane network element does not provide a good service for the terminal, thereby affecting the user's service experience.
  • the communication method, the network open function network element and the control plane network element provided by the application can determine a better user plane network element for the terminal, thereby further improving the user service experience.
  • the present application provides a method of communication.
  • the communication method includes: the network open function network element receives the first message, the first message carries related information of the terminal, the related information of the terminal includes target application device information and/or service information of the terminal; and the target application device information refers to the terminal in the network.
  • the network open function network element determines information of at least one user plane network element according to the related information of the terminal; the capability open platform network element sends a second message to the control plane network element, and the second message carries information of the at least one user plane network element .
  • the optional user plane network element device may be determined by the network open function network element instead of being determined by the application device.
  • the application device does not need to perceive the information of the user plane network element, such as the Internet Protocol (IP) address or deployment status of the user plane, thereby reducing the complexity of the application device and not exposing the network architecture to the network architecture.
  • IP Internet Protocol
  • the network open function network element determines the user plane network element information according to the target application device information and/or the service information, instead of determining the user plane network element by the control plane network element, which can simplify the function of the control plane network element and configure the data. The amount can also be greatly reduced.
  • the network open function network element can determine the information of the user plane network element according to the service information of the terminal, that is, the terminal can determine a better user plane network element, thereby improving the terminal.
  • the efficiency of the service which in turn can improve the user's business experience.
  • the network open function network element may obtain the location information of the terminal from the network side device, such as the control plane network element, and then determine the information of the at least one user plane network element according to the location information of the terminal and the related information of the terminal.
  • the network side device such as the control plane network element
  • the related information of the terminal includes target application device information of the terminal.
  • the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, and specifically includes: the network open function, wherein the network element determines the information of the at least one user plane according to the target application device information of the terminal.
  • related information of the terminal includes service information of the terminal.
  • the network open function network element determines information of at least one user plane network element according to the related information of the terminal, and specifically includes: the network open function network element determines information of at least one user plane network element according to the service information of the terminal.
  • the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, including: the network open function network element determines the target network open function of the terminal according to the related information of the terminal.
  • the network element; the network open function network element sends the related information of the terminal to the target network open function network element; the network open function network element receives the information of the at least one user plane network element that is sent by the target network open function network element according to the related information of the terminal.
  • multiple network open function network elements can jointly determine the user plane of the terminal, thereby balancing the burden of the network open function network element, thereby improving the efficiency of the network open function network element.
  • the network open function network element determines the target network element open function network element according to the related information of the terminal, and may include: the network open function network element according to the target application.
  • the device information is used to determine the target network open function network element of the terminal; the network open function network element sends the related information of the terminal to the target network open function network element, including: the network open function network element sends the target application device information to the target network open function network element.
  • business information is used to determine the target network open function network element of the terminal; the network open function network element sends the related information of the terminal to the target network open function network element, including: the network open function network element sends the target application device information to the target network open function network element.
  • business information is used to determine the target network open function network element of the terminal.
  • the network open function network element determines the target network open function network element according to the related information of the terminal, and the network open function network element determines the terminal according to the service information of the terminal.
  • the network open function network element sends the related information of the terminal to the target network open function network element, including: the network open function network element sends the service information of the terminal to the target network open function network element.
  • the related information of the terminal includes target application device information.
  • the network open function network element determines information of at least one user plane network element according to the related information of the terminal, and the network open function function network element determines at least one user plane network element information according to the location information of the terminal and the target application device information.
  • the location information of the terminal may be obtained by the network element open function network element from the control plane network element.
  • the network open function network element determines the at least one user plane network element information according to the location information of the terminal and the target application device information, and may include: the network open function network element according to the location information of the terminal and the target application device information.
  • the first application device information is determined to be another target application device information (which may be referred to as second application device information); the network open function network element determines at least one user plane network element information according to the second application device information.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is an application corresponding to the first application device information. All or part of the equipment.
  • the related information of the terminal includes target application device information.
  • the network open function network element determines information of at least one user plane network element according to related information of the terminal, including: the network open function network element determines the target network open function according to the target application device information (which may be referred to as the first application device information).
  • the network element; the network open function network element sends the first application device information to the target network open function network element; the network open function network element receives the target network open function network element according to the location information of the terminal and the second application sent by the first application device information.
  • Device information; the network open function network element determines at least one user plane network element information according to the second application device information.
  • the network open function network element may be determined according to the first target application device information and the location information of the terminal.
  • the target network is open to functional network elements.
  • the location information of the terminal may be obtained by the target network element open function network element from the control plane network element.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is an application corresponding to the first application device information. All or part of the equipment.
  • the network open function network element determines the at least one user plane network element information according to the second application device information
  • the method includes: the network open function network element according to the service information of the terminal And the second application device information determines at least one user plane network element information.
  • the service information may include at least one of the following: an application identifier corresponding to the service, a type of the service, and a behavior of the service.
  • the first message may carry related information of the terminal.
  • the first message may further carry an identifier of the terminal.
  • the communication method may further include: determining, by the network open function network element, the control plane network element according to the identifier of the terminal.
  • the second message is a user plane path selection request message or a user plane path reselection request message.
  • the network open function network element receives the first message, and the network open function function network element receives the first message sent by the application device or the domain name system device that is currently serving the terminal.
  • the target application service information may be information of an application device that provides an application service for the terminal after the network side reselects the user plane network element device, and may be an IP address, an identifier, a name, or a domain name information of the application device.
  • the present application provides another method of communication.
  • the communication method includes: the control plane network element receives the second message sent by the network open function network element, the second message is used to request the terminal to determine the user plane network element, and the second message carries the information of the at least one user plane network element; The network element determines the target user plane network element for the terminal according to the information of the at least one user plane network element.
  • the information of the at least one user plane network element carried by the second message may be a user plane network element determined by the network open function. That is to say, when the control plane network element determines the target user plane for the terminal, it can be determined within a more reasonable user plane network element, thereby improving the efficiency of the control plane to determine the user plane, and determining that it can be more Good for the user side of the terminal service.
  • the communication method may further include: the control plane network element determines the service information of the terminal.
  • the control plane network element determines the target user plane network element for the terminal according to the information of the at least one user plane network element, and may include: the control plane network element according to the information of the at least one user plane network element and the service of the terminal The information is used to determine a target user plane network element from the at least one user plane network element.
  • the control plane network element can determine the information of the user plane network element according to the service information of the terminal, that is, the user plane network element can be determined for the terminal, so that the efficiency of the terminal service can be improved, and the user experience can be improved.
  • the second message may further carry service information of the terminal.
  • the control plane network element determines the service information of the terminal, and may include: the control plane network element determines the service information of the terminal from the second message.
  • control plane network element can receive the terminal service information that is currently sent by the application device that is served by the terminal, and can also receive the terminal service information that is sent by the network open function network element.
  • the second message may be a user plane path determination request message or a user plane path reselection determination request message.
  • the present application provides another method of communication.
  • the communication method includes: the control plane network element receives the first message, the first message carries the service information of the terminal and/or the target application device information; and the control plane network element determines the target user plane network element for the terminal according to the first message.
  • the control plane network element determines the information of the target user plane network element according to the service information of the terminal and/or the target application device information, and can determine a better user plane network element for the terminal, thereby improving the efficiency of serving the terminal. In turn, the user's business experience can be improved.
  • the first message may be a user plane path selection request message or a user plane path reselection request message.
  • control plane network element receives the first message, where the control plane network element receives the first message sent by the application device or the domain name system device that is currently serving the terminal.
  • control plane network element receives the first message
  • control plane network element receives the first message sent by the network open function network element, where the first message carries the target application device information.
  • the target application device information (which may be referred to as second application device information) may be determined by the network open function network element according to the first application device information and the location information of the terminal.
  • the location information of the terminal may be obtained by the network open function network element from the control plane network element.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is an application corresponding to the first application device information. All or part of the equipment.
  • control plane network element can determine a more suitable user plane network element for the terminal according to a smaller range of application device information.
  • the embodiment of the present application provides a network open function network element, where the network open function network element includes a module for performing the communication method in the first aspect or any possible implementation manner of the first aspect. .
  • the embodiment of the present application provides a control plane network element, where the control plane network element includes a module for performing the communication method in any one of the possible implementations of the second aspect or the second aspect.
  • the embodiment of the present application provides a control plane network element, where the control plane network element includes a module for performing a communication method in any one of the possible implementations of the third aspect or the third aspect.
  • the embodiment of the present application provides a network open function network element, where the network open function network element includes a receiver, a transmitter, and a processor, where the receiver, the transmitter, and the processor are configured to perform the first aspect. Or a module of the communication method in any of the possible implementations of the first aspect.
  • an embodiment of the present application provides a control plane network element, where the control plane network element includes a receiver and a processor, where the receiver and the processor are configured to perform any one of the second aspect or the second aspect.
  • a module of the communication method in a possible implementation.
  • the embodiment of the present application provides a control plane network element, where the control plane network element includes a receiver and a processor, where the receiver and the processor are configured to perform any one of the third aspect or the third aspect.
  • a module of the communication method in a possible implementation.
  • the embodiment of the present application provides a computer readable medium, where the computer readable medium stores program code for performing network open function network element, where the program code is used to execute the first aspect or the first An instruction of a communication method in any of the possible implementations on the one hand.
  • the embodiment of the present application provides a computer readable medium storing program code for controlling execution of a surface network element, where the program code includes An instruction of a communication method in any of the possible implementations of the two aspects.
  • the embodiment of the present application provides a computer readable medium storing program code for controlling execution of a surface network element, where the program code includes An instruction of a communication method in any of the possible implementations of the three aspects.
  • the embodiment of the present invention further provides a computer program product including instructions, when it is in calculation When operating onboard, the computer is caused to perform the communication method described in the first aspect above.
  • the embodiment of the present invention further provides a computer program product comprising instructions, which when executed on a computer, cause the computer to perform the communication method of the second aspect.
  • the embodiment of the present invention further provides a computer program product comprising instructions, when executed on a computer, causing the computer to perform the communication method described in the third aspect above.
  • FIG. 1 is a diagram of an exemplary system architecture in which a communication method of an embodiment of the present application can be applied.
  • FIG. 2 is an exemplary flow chart of a communication method of one embodiment of the present application.
  • FIG. 3 is an exemplary flowchart of a communication method of another embodiment of the present application.
  • FIG. 4 is an exemplary interaction diagram of a communication method of one embodiment of the present application.
  • FIG. 5 is an exemplary interaction diagram of a communication method of another embodiment of the present application.
  • FIG. 6 is an exemplary flowchart of a communication method of another embodiment of the present application.
  • FIG. 7 is an exemplary interaction diagram of a communication method of another embodiment of the present application.
  • FIG. 8 is an exemplary interaction diagram of a communication method of another embodiment of the present application.
  • FIG. 9 is an exemplary structural diagram of a network open function network element according to an embodiment of the present application.
  • FIG. 10 is an exemplary structural diagram of a control plane network element according to an embodiment of the present application.
  • FIG. 11 is an exemplary structural diagram of a control plane network element of another embodiment of the present application.
  • FIG. 12 is an exemplary structural diagram of a network open function network element according to another embodiment of the present application.
  • FIG. 13 is an exemplary structural diagram of a control plane network element of another embodiment of the present application.
  • FIG. 14 is an exemplary structural diagram of a control plane network element of another embodiment of the present application.
  • FIG. 1 is an exemplary structural diagram of a communication system to which a communication method and various network elements of an embodiment of the present application can be applied. It should be understood that the embodiments of the present application are not limited to the system architecture shown in FIG. 1, as may include more or fewer network elements or devices. In addition, the apparatus in FIG. 1 may be hardware, functionally divided software, or a combination of the two.
  • the control plane network element 110 is configured to implement control plane functions, such as implementing an attach procedure of the terminal 170, establishing a session, and the like. Generally, the control plane network element transmits control information.
  • the user plane network element 120 is used to implement the user plane function.
  • the user plane network element 120 can receive and process the data packets of the terminal 170.
  • the user plane network element 120 can receive the uplink and downlink data packets of the terminal 170, and forward and process the uplink and downlink data packets to other network elements according to the forwarding rules of the data flow.
  • An access network (AN) 130 generally refers to a wireless access device, such as a base station device, a small base station device (Pico), and the like in a future New Ratio (NR) network.
  • the AN 130 may receive the uplink data packet sent by the terminal 170, and may also receive the downlink data packet sent by the user plane network element 120 and forward it to the terminal 170.
  • the network open function network element 140 maintains a list of services provided or opened by the network. As a functional unit for the application, it receives service requests from applications including operators and third-party applications, further provides requested services to related network functions, and can also authorize applications, and billing and overload control.
  • the Domain Name System (DNS) device 150 refers to a distributed database on the Internet that is mapped to each other as a domain name and an IP address, which enables users to access the Internet more conveniently without having to remember the IP that can be directly read by the machine. Number string.
  • DNS Domain Name System
  • Number string The process of obtaining the IP address corresponding to the host name by the host name is called domain name resolution (or host name resolution).
  • An application service (AS) 160 refers to a device that provides an application, such as a device that provides a chat application, a device that provides a game application, and the like. Specifically, it may be an application device of the operator, or may be a device of a third-party application that does not belong to the operator.
  • the terminal 170 may be a User Equipment (UE).
  • the UE may communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • a UE may be referred to as an access terminal, a terminal device, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device.
  • the UE may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function.
  • SIP Session Initiation Protocol
  • WLL Wireless
  • the application device 160 may send a user plane path (re) selection request message to the control plane, by the control plane.
  • the network element 110 determines the user plane network element for the terminal 170 according to factors such as the location of the terminal 170 and the load balancing of the user plane network element 120.
  • the user plane network element determined by the method for the terminal does not provide a good service for the terminal, thereby affecting the user's service experience. Therefore, the embodiment of the present application proposes a new method for determining a user plane network element for a terminal.
  • FIG. 2 is an exemplary flowchart of a communication method according to an embodiment of the present application. It should be understood that FIG. 2 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG. 2. Moreover, the various steps in FIG. 2 may be performed in a different order than that presented in FIG. 2, and it is possible that not all operations in FIG. 2 are to be performed.
  • the network open function network element receives the first message, where the first message carries related information of the terminal, and the related information of the terminal includes target application device information and/or service information of the terminal.
  • the first message can be used to request to determine a user plane network element for the terminal.
  • the first message is used to request the terminal to determine the user plane network element, and the first message is used to request that the user plane network element be re-determined for the terminal. That is to say, the network side re-selects the user plane network element for the PDU session in which the current terminal communicates with the application device.
  • the first message may be a UP path selection request message or a UP path reselection request message.
  • the first message can also be a message with other functions.
  • the message that can trigger the network open function network element to determine the user plane network element for the terminal belongs to the category of the first message in the embodiment of the present application.
  • the network open function network element may be referred to as a central network open function, and may be referred to as a network open function-CN.
  • the target application device information of the terminal may include at least one of location, identification information, domain name, and IP address of the target application device. For example, if the terminal conducts a Tencent service, then the target application device information may be "Tencent” or “Tencent device IP address” or Tencent's domain name.
  • the target application device of the terminal refers to the network side device (such as the network open function network element), after determining the user plane network element, Application device for terminal services.
  • the network side device such as the network open function network element
  • the service information of the terminal may include information such as an application identifier of the service of the terminal, a service type of the terminal, or a service behavior of the terminal.
  • the application identifier of the service may be an identifier of the content of the service, such as a specific service content, and the content of the service may be determined according to the application identifier of the service.
  • the service type may be a specific type of service.
  • the service type of the terminal may be a content delivery network (CDN) service or a video service.
  • the service behavior of the terminal may refer to the specific behavior of the terminal.
  • the service behavior of the terminal may be registration, login, or logout.
  • the network open function network element determines information about at least one user plane network element according to related information of the terminal.
  • the at least one user plane network element may be a user plane device determined by the network side to enable the terminal to perform application service information identified by the target application device information and/or the service information.
  • the at least one user plane network element information may be the identifier information of the at least one user plane network element, where the identifier information of the user plane network element is used to identify the user plane network element, and may include the IP address or media connection of the user plane network element. Information such as the Media Access Control (MAC) address.
  • MAC Media Access Control
  • the network open function network element sends a second message to the control plane network element, where the second message carries information about the at least one user plane network element.
  • the second message may be an UP path selection request message or an UP path reselection request message.
  • the optional user plane network element device may be determined by the network open function network element instead of the application device.
  • the application device does not need to perceive the information of the user plane network element, such as the IP address or deployment status of the user plane, thereby reducing the complexity of the application device and not exposing the network architecture to the application device, which can also increase Network security.
  • the network open function network element determines the information of the user plane network element according to the application device information and/or the service information, instead of determining the user plane network element by the control plane network element, which can simplify the function of the control plane and configure the data. The amount can also be greatly reduced.
  • the network open function network element may determine the information of the user plane network element according to the service information of the terminal, that is, the terminal may determine or reselect the preferred user plane network element, thereby Improve the efficiency of the terminal service, which in turn can improve the user's business experience.
  • the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, which may include: determining, by the network open function network element, the at least one user for the terminal according to the related information of the terminal. Information about the surface network element.
  • the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, and may also include: the network open function network element sends all or part of the information about the terminal to other network open function network elements, Determining, by the other network open function network element, the information of the at least one user plane network element according to the terminal incomplete or partial related information terminal; and then the network opening function receiving the information of the at least one user plane network element sent by the other network open function network element .
  • multiple network open function network elements can jointly implement the user plane selection of the terminal, thereby balancing the burden of the network open function network element, thereby improving the network open function network element. s efficiency.
  • the following describes a specific implementation manner in which the network open function network element determines information of at least one user plane network element according to related information of the terminal.
  • the network open function may acquire information of one or more application devices and information of one or more user plane network elements in advance. For example, when the application device or the application device is powered on, the device information (such as the application device name, location, or information about the service that the application device can provide) is registered to the network open function; and the application device is also served.
  • the user plane network element information is also registered or configured on the network open function. That is to say, the network open function can obtain the correspondence between the application device information and the user plane network element information serving the application device in advance.
  • the network open function network element determines several types of information about at least one user plane network element according to related information of the terminal as follows.
  • the first type if the related information of the terminal includes the target application device information of the terminal, the network open function network element obtains the information of the at least one user plane network element according to the related information of the terminal, which may include: the network open function network element according to the network
  • the target application device information of the terminal determines information of one or more user plane network elements serving the target application device.
  • the target application device information may include location information of the target application device (such as the location of the Tencent device), identification information of the target application device (such as the "Tencent" application identifier), the domain name of the target application device (such as the domain name of the Tencent device), and Tencent. At least one of the IP addresses of the device.
  • the network open function network element may be based on the identification information (such as the application identifier) of the target application device of the terminal and the pre-obtained application device information (including the application device identifier or application).
  • the identification information such as the application identifier
  • the pre-obtained application device information including the application device identifier or application.
  • the network open function network element determines the user plane network element according to the target application device information
  • the user plane network element may be determined according to the location information of the terminal and the target application device information.
  • the location information of the terminal may be sent to the network open function network element by the application device currently serving the terminal service, or may be obtained by the network open function network element from the network side device (such as the control plane network element).
  • the network open function network element may obtain the location information of the terminal from the control plane network element, where the network open function function network element sends a request message for acquiring the terminal location information to the control plane network element, where the request message includes the terminal.
  • the identifier is used to determine the location of the terminal according to the identifier of the terminal, and the network open function network element receives the location information of the terminal sent by the control plane network element.
  • the network open function network element determines the user plane network element according to the location information of the terminal and the target application device information
  • the network open function function network element may be configured according to the location information of the terminal and the target application device information.
  • the first application device information determines that another target application device information (which may be referred to as second application device information) is determined, and then the user plane network element information is determined according to the second application device information.
  • the information about the terminal includes the service information of the terminal, and the network open function network element can determine the user plane network element information according to the service information of the terminal and the second application device information, so that the user who can better improve the service for the terminal can be determined. Face network element.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is the application device corresponding to the first application device information. All or part.
  • the second target application device information is more specific or more detailed or more accurate than the first target application device information.
  • the network open function network element can locate a specific one or a specific group of application devices by using the second application device information.
  • the network open function network element may send a request message for acquiring the location information of the terminal to the control plane network element to obtain the location information of the terminal located in Jinqiao Road of Shanghai, and then the network open function may be based on the location information of the terminal (Shanghai) City Jinqiao Road) and the first application equipment information (for example, Tencent equipment), determine the second application equipment information (Tencent equipment of Jinqiao Road, Shanghai).
  • the network open function can determine the user plane network element for the Tencent device located in Jinqiao Road, Shanghai according to the target application device, and the determined user plane network element is the user plane network element serving the Tencent device of Jinqiao Road in Shanghai.
  • the network open function function network element may determine the target according to the target application device information (which may become the first application device information).
  • the network open function network element; the network open function network element sends the first application device information to the target network open network element; the network open function network element receives the target network open function network element according to the location information of the terminal and the first application device information.
  • the application device information; the network open function network element determines the user plane network element information according to the second application device information.
  • the network open function network element may determine the user plane network element information according to the location information of the terminal and the second application device information.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is an application corresponding to the first application device information. All or part of the equipment.
  • the target network open function network element obtains the location information of the terminal, where the target network open function network element sends the identifier of the terminal to the control plane network element, so that the control plane network element determines the terminal according to the identifier of the terminal.
  • the location network open source function network element receives the terminal location information sent by the control plane network element.
  • the network open function network element determines the target network open function network element according to the first application device information (Tencent device), and sends the first application device information (Tencent device) to the target network open function network element.
  • the target network open function network element receives the first application device information, and sends the identifier of the terminal to the control plane network element.
  • the control plane network element receives the identifier of the terminal, determines that the terminal is located in Jinqiao Road of Shanghai according to the identifier of the terminal, and sends the terminal location information to the open network function network element of the target network.
  • the target network element open function network element receives the terminal location information sent by the control plane network element, and determines the second application equipment information (ie, the Tencent equipment of Jinqiao Road in Shanghai) according to the terminal located in Jinqiao Road and Tencent equipment in Shanghai, and provides the network to the network.
  • the open function network element sends the second application device information.
  • the network open function network element receives the second application device information, and determines, according to the second application device information, the user plane network element that provides the service for the Shanghai Jinqiao Road Tencent device.
  • the second type if the related information of the terminal includes the service information of the terminal, the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, which may include: the network open function function network element according to the service of the terminal The information identifies the target application device information of the terminal, and the target application device information corresponds to the application device that serves the terminal after determining the user plane network element for the terminal; the network open function network element determines one or more user planes according to the target application device information. The network open function network element determines information of at least one user plane network element from the information of the one or more user plane network elements according to the service information of the terminal.
  • the network open function network element may first find an application that can provide the service corresponding to the service information from the application device information (including the information of the service that the application device can provide) configured on the network open function network element according to the service information. And determining, according to the correspondence between the application device information and the user plane network element information, one or more user plane network element information serving the target application device.
  • the network open function network element determines one or more user plane network element information according to the target application device information.
  • the information may include: the network open function network element determines the user plane network element according to the location information of the terminal and the target application device information.
  • the network open function network element determines the specific implementation manner of the user plane network element according to the location information of the terminal and the target application device information, and can refer to the first type of network open function network element to determine the user according to the location information of the terminal and the target application device information.
  • the specific implementation of the surface network element For the sake of brevity, it will not be repeated here.
  • the third type if the related information of the terminal includes the service information of the terminal and the target application device information, the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, which may include: The information network open function network element that determines one or more user plane network elements according to the target application device information determines at least one user plane network element information according to the service information of the terminal and the one or more user plane network element information.
  • the network open function network element may determine the user plane network according to the location information of the terminal and the target application device information. yuan.
  • the network open function network element determines the specific implementation manner of the user plane network element according to the location information of the terminal and the target application device information, and can refer to the first type of network open function network element to determine the user according to the location information of the terminal and the target application device information.
  • the specific implementation of the surface network element For the sake of brevity, it will not be repeated here.
  • the following describes the network open function network element to send all or part of the relevant information of the terminal to other network open function network elements, and the other network open function network element determines the specific information of the at least one user plane network element according to part or part of related information. Implementation.
  • the network open function network element determines the information of the at least one user plane network element according to the related information of the terminal, and specifically includes: the network open function network element determines the target network open function network element according to the related information of the terminal; the network open function The network element sends the related information of the terminal to the target network open function network element.
  • the network open function network element receives at least one user plane network element information that is determined and sent by the target network open function network element according to the related information of the terminal.
  • the network open function network element determines the target network open function network element of the terminal according to the terminal related information, which may include: the network open function network element determines the current application device information according to the target application device information.
  • the target network open function network element of the target application device service may include: the target network open function network element of the target application device service.
  • the network open function network element determines the target network open function network element of the terminal according to the related information of the terminal, which may include: the network open function network element determines to provide the service according to the service information.
  • the network open function network element determines the target network open function network element of the terminal according to the related information of the terminal, which may include: the network open function network element according to the target application device information. Determining the target network open function network element serving the target application device.
  • the target network open function network element determines the user plane network element information according to the target application device information, and may determine the user plane network element according to the target application device information and the configuration data, such as the user plane network element serving the application device. information. Further, the target network open function network element may further determine the user plane network element according to the load condition of each user plane network element.
  • the target network open function network element determines the user plane network element according to the target application device information
  • the user plane network element may be specifically determined according to the location information of the terminal and the target application device information.
  • the location information of the terminal may be sent by the central network open function network element to the target network open function network element, or may be obtained from the control plane network element.
  • the terminal location information on the central network open function network element may be sent by the application device currently serving the terminal service to the central network open function network element, or may be obtained by the central network open function network element from the control plane network element.
  • the implementation manner of the target network open function network element determining the user plane network element information according to the location information of the terminal and the target application device information includes: the network open function network element according to the location information of the terminal and the target application device information (may be referred to as the first The application device information determines the second application device information, and determines the user plane network element information according to the second application device information.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is an application corresponding to the first application device information. All or part of the equipment.
  • the first application device information may be a Tencent device
  • the location information of the terminal may be Jinqiao Road of Shanghai
  • the second application device information may be a Tencent device of Jinqiao Road of Shanghai.
  • the target network open function network element may determine the user plane network element information according to the location information of the terminal and the second application device information.
  • the target application device of the terminal may be an application device that is closer to the terminal or even the closest.
  • the control plane network element in the embodiment of the present application may be a control plane network element determined by the network open function network element or the target network element open function network element according to the identifier of the terminal.
  • the identifier of the terminal may be an external identifier of the terminal, and the external identifier may be an identifier of the terminal by the application device.
  • the network open function network element determines the control plane network element according to the identifier of the terminal, and specifically includes: the network open function network element determines the identifier of the terminal inside the operator communication network according to the external identifier of the terminal; the network open function network element is based on the terminal An identifier inside the carrier communication network determines a control plane network element serving the terminal within the carrier communication network.
  • the network open function network element determines the identifier of the terminal in the carrier communication network according to the external identifier of the terminal. For brevity, details are not described herein again.
  • the identifier of the terminal may be carried in the first message.
  • the network open function network element receives the first message, which may include: the network open function network element receives the first message sent by the application device or the DNS device currently serving the terminal.
  • the application device or DNS device currently serving the terminal can send the first message in a variety of situations. If the terminal is moved, the current application device may not provide a good service for the UE. In this case, the application device may initiate a first message requesting to reselect the application device or the user plane network element for the UE. Or, for example, when the DNS device receives the domain name resolution message initiated by the terminal, if the service currently performed by the terminal is a CDN service or a video service, in order to provide a better service for the terminal, the DNS device may initiate a first message to facilitate communication. The network can determine a better user plane network element for the terminal.
  • the network functioning network element determines one or more user plane network elements for the terminal according to the related information of the terminal, and after transmitting the determined one or more user plane network element information to the control plane network element, the control plane network element may
  • the user plane network element determined by the network open function is directly determined as the user plane network element for the terminal service. For example, when the network open function sends the determined user plane network element, the network open function can be understood as multiple network users. Determine a user plane network element), or use traditional methods, such as opening the network according to information such as load balancing of user plane network elements.
  • the function network element determines a more suitable user plane network element in the user plane network element determined by the terminal (for example, when the network open function sends the determined multiple user plane network elements) to further improve the user experience.
  • FIG. 3 is an exemplary flowchart of a communication method of another embodiment of the present application. It should be understood that FIG. 3 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG. Moreover, the various steps in FIG. 3 may be performed in a different order than that presented in FIG. 3, and it is possible that not all operations in FIG. 3 are to be performed.
  • control plane network element receives the second message sent by the network open function network element, where the second message is used to request the terminal to determine the user plane network element, and the second message carries the information of the at least one user plane network element.
  • the control plane network element may correspond to the control plane network element in the communication method shown in FIG. 2, and the network open function network element may correspond to the network open function network element in the communication method shown in FIG. 2.
  • the at least one user plane network element may be a user plane network element in a local network to which the terminal belongs.
  • the information of the at least one user plane network element may include the at least one user plane network element identification information, such as not limited to an IP address of the user plane device.
  • the second message may be an UP path selection request message or an UP path reselection request message.
  • the control plane network element determines the target user plane network element of the terminal according to the information of the at least one user plane network element.
  • control plane network element may select a target user plane network element from the at least one user plane network element according to the information of the at least one user plane network element.
  • the method for the control plane network element to select the target user plane network element from the at least one user plane network element may refer to the prior art, for example, the control plane network element may be based on the location information of the terminal or the user plane network element.
  • the load information or the like selects the target user plane network element from the at least one user plane network element.
  • the target user plane network element may be a user plane network element currently serving the terminal, or may be another user plane network element.
  • the determining target user plane network element described herein may be reselection to determine the target user plane network element.
  • the information of the at least one user plane network element carried in the second message may be the user plane network element determined by the network open function. That is to say, when the control plane network element determines the target user plane for the terminal, it can be determined within a more reasonable user plane network element, thereby improving the efficiency of the control plane to determine the user plane, and also determining that the user plane can be better.
  • the user plane serving the terminal when the control plane network element determines the target user plane for the terminal, it can be determined within a more reasonable user plane network element, thereby improving the efficiency of the control plane to determine the user plane, and also determining that the user plane can be better.
  • the communication method of the embodiment of the present application may further include: the control plane network element determines the service information of the terminal.
  • the control plane network element determines the target user plane network element for the terminal according to the information of the at least one user plane network element, which may include: the control plane network element according to the information of the at least one user plane network element and the The service information determines a target user plane network element for the terminal from the at least one user plane network element.
  • the control plane network element determines the service information of the terminal, and the control plane network element obtains the service information of the terminal from the network open function network element, or the control plane network element obtains the service information of the terminal from other network elements.
  • the control plane network element may determine, from the at least one user plane network element, the target user plane capable of providing the terminal with the service corresponding to the service information, according to the information of the at least one user plane network element and the service information. Network element.
  • the service information of the terminal may include information such as an application identifier of the service of the terminal, a service type of the terminal, or a service behavior of the terminal.
  • the service type of the terminal may be a CDN service or a video service.
  • the service of the terminal The behavior can be registration, login or logout.
  • the application identifier of the service of the terminal may be an identifier that identifies the content of the service, and may be a specific service content.
  • the second message may further carry the service information of the terminal.
  • the control plane network element determines the service information of the terminal, and specifically includes: the control plane network element determines the service information of the terminal from the second message.
  • FIG. 4 is an exemplary interaction diagram of a communication method of one embodiment of the present application. It should be understood that FIG. 4 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG.
  • FIG. 4 may be performed in a different order than that presented in FIG. 4, and it is possible that not all operations in FIG. 4 are to be performed.
  • S402 The UE establishes a PDU session connection with a user plane network element (UP1) that is currently serving the terminal. At this time, the uplink and downlink data flows between the UE and the application device (referred to as AS1) currently serving the UE pass through UP1.
  • UP1 user plane network element
  • the AS1 sends an UP path (re) selection request message to the network open function network element (NEF1).
  • the message may include one or more of an external identifier of the UE, target application device information, and service information of the UE, or may further include other information.
  • the target application device (referred to as AS2) refers to an application device that serves the UE after reselecting the user plane network element for the UE.
  • the AS1 may obtain the location information or the identifier of the UE from the application layer, and the AS1 determines the AS2 according to the location information or the identifier of the UE, and then the AS1.
  • An UP path (re) selection request message may be initiated, requesting to reselect the device or the user plane network element for the UE.
  • the NEF1 may determine the identifier of the UE in the operator communication network according to the external identifier of the UE, and determine the control plane network according to the identifier of the UE in the communication network. Yuan (referred to as CP).
  • the NEF1 may determine the information of the local user plane network element (UP2 for short) according to the target application device information and/or the service information.
  • the information of the local user plane function network element corresponds to the information of at least one user plane network element described in FIG. 2 or FIG. 3.
  • the information of AS2 may include location information, name, domain name, IP address or identifier of AS2.
  • the NEF1 determining the information of the local user plane network element according to the target application device information and/or the service information refer to related content in S220, and details are not described herein again.
  • NEF1 sends an UP path (re) selection message to the control plane network element (CP for short), and the message includes information of UP2.
  • the CP may send an UP path (re)selection response (response) message to NEF1.
  • the CP sends an UP path (re) selection response message to NEF1, and can notify NEF1 that the user plane has been determined for the UE.
  • the CP may perform legality check and authorization on the UP path (re)selection message. Other security related processes may also be included in this step.
  • the CP may send the information of the locally routed data stream to the UP2, such as the destination IP address information of the application data stream.
  • NEF1 responds to the user plane function selection of AS1, and the message may include information of AS2, such as AS2. Information such as the IP address.
  • the AS1 notifies the UE of the information of the AS2, so that the UE is redirected to the AS2.
  • the data stream may be transmitted between the UE and the AS2 through the UP2.
  • the communication method shown in FIG. 4 may not have S408, but may also include S410 to S416.
  • the NEF1 may determine the NEF-Local network element (referred to as NEF2) according to the target application device information.
  • the NEF-Local network element corresponds to the target network open function network element in the communication method shown in FIG. 2.
  • the NEF1 may obtain the location information of the UE. For example, the NEF1 sends the request information requesting the location information of the UE to the CP, and acquires the location information of the UE according to the location of the UE. Information determines NEF2.
  • NEF1 sends a user face function request (function request) message to NEF2.
  • the message may include service information and/or application device information, and may of course include information such as an external identifier of the UE.
  • the NEF2 determines the information of the UP2 according to the UP function request message.
  • the specific implementation manner of determining the information of the UP2 according to the UP function request message refer to the related content in S220, and details are not described herein again.
  • the NEF2 sends a user plane function response message to the NEF1, where the message carries the information of the UP2.
  • FIG. 5 is an exemplary interaction diagram of a communication method of one embodiment of the present application. It should be understood that FIG. 5 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG. 5.
  • FIG. 5 may be performed in a different order than that presented in FIG. 5, and it is possible that not all operations in FIG. 5 are to be performed.
  • the user plane network element reselection process is initiated by AS1. Prior to this, the UE should have established a connection with AS1. After the UE establishes a connection with AS1, AS1 can initiate the user plane network element reselection process in any of the following cases.
  • AS1 discovers that AS1 is currently unable to provide better service for the UE due to UE mobility, requesting to reselect another application device for the UE, such as AS2 closer to the UE, in this case, due to the location of the application device serving the UE.
  • AS2 closer to the UE
  • the user plane network element of the service needs to be re-determined for the UE.
  • AS1 finds that the UP1 currently serving the UE is not suitable, for example, when the distance of the UP1 is far from the AS1 served by the UE, the AS1 requests to initiate a user plane network element reselection process for the UE, and determines a more suitable user plane network element for the AS1.
  • AS1 and AS2 are the same application device.
  • the communication method shown in FIG. 5 is to determine an appropriate user plane network element for the UE's service during the process of querying the DNS device before the UE performs the service.
  • the communication method shown in FIG. 5 determines the user plane network element for the service of the UE in advance, and can determine the appropriate user plane network element at the initial stage of the service, thereby further improving the service experience of the user.
  • S502 The UE establishes a PDU session connection with a user plane network element (abbreviated as UP1) currently serving the terminal. At this time, the uplink and downlink data flows between the UE and the DNS device pass through UP1. The data stream of the UE is subjected to domain name resolution via a DNS device.
  • UP1 user plane network element
  • the DNS device sends an UP path (re)selection to the central network open function network element (referred to as NEF1).
  • Request message may include one or more of an external identifier of the UE, target application device information, and service information of the UE, or may further include other information.
  • the target application device information may be an IP address information or an identifier of the target application device (abbreviated as AS2), and the IP address information may be obtained by the DNS device according to the domain name of the service of the UE.
  • the target application device is an application device that serves the terminal after the network side device reselects the user plane network element.
  • the NEF1 may determine the identifier of the UE in the operator communication network according to the external identifier of the UE, and determine the control plane network according to the identifier of the UE in the communication network. Yuan (referred to as CP).
  • the NEF1 may determine the information of the local user plane network element (abbreviated as UP2) according to the target application device information and/or the service information.
  • the information of the local user plane function network element corresponds to the information of at least one user plane network element described in FIG. 2 or FIG. 3.
  • the target application device information such as the location information or the identifier
  • the service information refers to related content in S220, and details are not described herein again.
  • the NEF1 sends an UP path (re) selection message to the CP, where the message includes the information of the UP2.
  • the CP may send an UP path (re)selection response (response) message to NEF1.
  • the CP sends an UP path (re) selection response message to the NEF1, and can notify the NEF1 that the user plane network element has been determined for the UE.
  • the CP may perform legality check and authorization on the UP path (re)selection message. Other security related processes may also be included in this step.
  • the CP may send the information of the locally routed data stream to the UP2, such as the destination IP address information of the application data stream.
  • NEF1 responds to the user plane device selection message to the AS1, and the message may include the target application device information, where the target application device information may be the identifier information or the IP address information of the AS2.
  • the AS1 notifies the identity information of the UE AS2, so that the UE is redirected to the AS2.
  • the data stream may be transmitted between the UE and the AS2 through the UP2.
  • the communication method shown in FIG. 4 may not have S408, but may also include but may also include S410 to S416.
  • the NEF1 may determine the NEF-Local network element (NEF2 for short) according to the information of the AS2.
  • the NEF-Local network element corresponds to the target network open function network element in the communication method shown in FIG. 2.
  • the NEF1 may acquire the location information of the UE. For example, the NEF1 sends the request information requesting the location information of the UE to the CP, and acquires the location information of the UE, according to the location information of the UE. Determine NEF2.
  • the NEF1 sends an UP function request message to the NEF2.
  • the message may include service information and/or target application device information.
  • information such as the external identifier of the UE may also be included.
  • the NEF2 determines the information of the UP2 according to the service information. For details on how to determine the information of the UP2 based on the service information, refer to the related content in S220, and no further details are provided here.
  • NEF2 sends the information of UP2 to NEF1.
  • FIG. 6 is an exemplary flowchart of a communication method of another embodiment of the present application. It should be understood that Figure 6 shows the communication The steps or operations of the method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the various operations in FIG.
  • FIG. 6 may be performed in a different order than that presented in FIG. 6, and it is possible that not all operations in FIG. 6 are to be performed.
  • the control plane network element receives the first message, where the first message carries the service information of the terminal or the target application device information.
  • the first message is used to request to determine a user plane network element for the terminal.
  • the first message may be an UP path (re) selection request message.
  • the service information of the terminal may include information such as an application identifier of the service of the terminal, a service type of the terminal, or a service behavior of the terminal.
  • the application identification information of the service of the terminal may be an identifier indicating the content of the service, and the specific content of the service, such as “Happy Camp”, may be known according to the application identifier.
  • the service type of the terminal may be a CDN service or a video service.
  • the business behavior of the terminal can be registration, login or logout.
  • the target application device information may include location information of the target application device (such as a location of the Tencent device), identification information of the target application device (such as a “Tencent” application identifier), and a domain name of the target application device (such as a domain name of the Tencent device). And at least one of the IP addresses of the Tencent device.
  • the target application device refers to an application device that serves the terminal after determining the user plane network element for the terminal.
  • the target application device information (which may be referred to as the second application device information) in the first message may be determined by the network open function network element.
  • the second application device information may be determined by the network open function network element according to the first application device information and the location information of the terminal.
  • the application device that initiates the user plane reselection (that is, the application device that is currently the terminal service device) may not know the destination address of the target application device, then the network open function network element may The information of the target application device is sent to the application device currently serving the terminal.
  • the application device that is currently serving the terminal may initiate a message to the network open function network element to request the IP address information of the target application device. After receiving the IP address of the target application device, the application device currently serving the terminal may notify the terminal device. An application redirection process is initiated to enable the UE to establish a connection with the target application device.
  • the first application device information may correspond to one or more application devices, and the second application device information may also correspond to one or more application devices, but the application device corresponding to the second application device information is the application device corresponding to the first application device information. All or part.
  • the network open function network element may determine the second application device information (for the terminal service according to the location information of the terminal (the terminal is located in Jinqiao Road, Shanghai) and the first application device information (the target application device for the terminal service is a Tencent device)
  • the target application equipment is Tencent Equipment of Jinqiao Road, Shanghai.
  • the network open function network element may send the first message to the control plane network element, where the first message carries the second application device information.
  • the terminal location information on the network open function network element may be sent to the network open function network element by the application device currently serving the terminal service, or may be obtained by the network open function network element from the control plane network element.
  • An implementation manner of the network function of the network element is: the network open function function network element sends the identifier of the terminal to the control plane network element, and the control plane network element determines the location of the terminal according to the identifier of the terminal; The network open function network element receives the terminal location information sent by the control plane network element.
  • the network open function network element may send the identifier of the terminal to the control plane network element, and receive the control plane network element.
  • the terminal to be sent is located at the location of Jinqiao Road, Shanghai.
  • the network open function can further determine that the target application device is the Tencent device of Jinqiao Road in Shanghai according to the terminal located in Jinqiao Road and the target application device in Shanghai.
  • the control plane network element determines, according to the first message, the target user plane network element.
  • the target user plane network element that the control plane network element can determine according to the service information of the terminal can provide the service corresponding to the service information for the terminal.
  • control plane network element can first find the service corresponding to the service information from the pre-obtained application device information (including the information of the service that the application device can provide, etc.) according to the service information (for example, "Happy Camp").
  • Target application device for example, an application device capable of providing "Happy Camp”
  • determining one or more user plane network elements of the target application device service according to the correspondence between the application device information and the user plane network element information information.
  • the target user plane network element may be a user plane network element currently serving the terminal, or may be another user plane network element.
  • the determining target user plane network element described herein may be reselection to determine the target user plane network element.
  • the control plane network element can determine the user plane network element for the terminal according to the target application device information.
  • the control plane network element may determine the user plane network element for the Tencent device located in Jinqiao Road of Shanghai according to the target application device, and the determined user plane network element is determined to be Shanghai.
  • User plane network element equipment of Tencent Equipment Service of Jinqiao Road may be determined.
  • control plane network element determines the information of the target user plane network element according to the service information of the terminal or the target application device information, so that a better user plane network element can be determined for the terminal, thereby improving the efficiency of serving the terminal. In turn, the user's business experience can be improved.
  • the first message may further carry at least one of the following information: information of one or more user plane network elements; UE packet filter information of the terminal, used to indicate local The PDU session routed by the user plane network element; the time period for requesting to use the target application device.
  • the control plane network element may further determine information about the target user plane network element for the terminal according to the at least one type of information.
  • control plane network element determines the target user plane network element for the terminal according to the service information of the terminal, and specifically includes: the control plane network element according to the service information of the terminal, and the location information, the load information of the user plane network element, and the like.
  • the target user plane network element is selected from the at least one user plane network element.
  • control plane network element receiving the first message may include: the control plane network element receiving the first message sent by the application device or the DNS device currently serving the terminal.
  • the application device or DNS device currently serving the terminal can send the first message in a variety of situations. If the current application device may not provide a good service for the UE, the application device may initiate a first message requesting the UE to reselect the application device or the user plane network element.
  • the DNS may initiate a first message, so that the communication network can Determine a better user plane network element for the UE.
  • FIG. 7 is an exemplary interaction diagram of a communication method of another embodiment of the present application. It should be understood that FIG. 7 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations in FIG.
  • FIG. 7 may be performed in a different order than that presented in FIG. 7, and it is possible It is necessary to perform all the operations in FIG. 7.
  • S702 The UE establishes a PDU session connection with a user plane network element (UP1 for short) currently serving the UE. At this time, the uplink and downlink data flows between the UE and the application device (referred to as AS1) that is currently serving the terminal pass through UP1.
  • UP1 user plane network element
  • the AS1 sends an UP path (re) selection request message to the control plane network element (CP for short).
  • the message may include the service information of the terminal and the following at least one type of information: information of one or more user plane network elements; target application device information; and application data flow identifier information of the terminal, used to indicate local user plane network element routing.
  • PDU session the time period during which the terminal requests to use the target application device (AS2 for short).
  • the target application device corresponding to the target application device information is the target application device in the communication method shown in FIG. 6.
  • the AS1 may obtain the information (such as location information or identifier) of the UE from the application layer, and the AS1 determines the AS2 for the UE according to the information of the UE, and then The AS1 may initiate an UP path (re) selection request message, requesting to reselect the device or the user plane network element for the UE.
  • the information such as location information or identifier
  • the CP determines information of the target user plane network element (abbreviated as UP2) according to the information carried in the UP path (re) selection request message.
  • UP2 target user plane network element
  • the CP may perform a validity check and authorization on the UP path (re)selection message. Other security related processes may also be included in this step.
  • the CP may send an UP path (re)selection response (response) message to AS1.
  • the CP sends an UP path (re) selection response message to the network open function network element (NEF1 for short), and can notify NEF1 that the user plane has been determined for the UE.
  • NEF1 network open function network element
  • the Configure traffic steering message process can be executed between the UP1 and the CP. Through the message process, the control plane can generate routing rules for the data flow and configure the rule to UP1.
  • a process of sending a Configure traffic steering message may be performed between the UP2 and the CP.
  • the CP generates a routing rule for the data flow, and configures the rule to the UP2.
  • the UE and the AS2 can perform data stream transmission through the UP2.
  • FIG. 8 is an exemplary interaction diagram of a communication method of another embodiment of the present application. It should be understood that FIG. 8 illustrates steps or operations of the communication method, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the operations of FIG.
  • FIG. 8 may be performed in a different order than that presented in FIG. 8, and it is possible that not all operations in FIG. 8 are to be performed.
  • S802 The UE establishes a PDU session connection with a user plane network element (UP1 for short) currently serving the terminal. At this time, the uplink and downlink data flows between the UE and the DNS device pass through UP1.
  • UP1 user plane network element
  • the DNS device sends an UP path (re) selection request message to the control plane network element (CP for short).
  • the message may include service information of the terminal and at least one of the following: information of one or more user plane network elements; target application device information (such as location information or identifier); application data flow identifier information of the UE, used to indicate Local use The PDU session routed by the client network element; the time period in which the UE requests to use the target application device (referred to as AS2).
  • the target application device information may include IP address information of the target application device, and the IP address information may be obtained by the DNS device according to the domain name of the service of the UE.
  • AS2 is the target application device in the communication method shown in FIG. 6.
  • the CP determines information of the target user plane network element (abbreviated as UP2) for the terminal according to the information carried in the UP path (re) selection request message.
  • UP2 target user plane network element
  • the CP may perform legality check and authorization on the UP path (re)selection message. Other security related processes may also be included in this step.
  • the CP may send an UP path (re)selection response (response) message to the DNS device.
  • a Configure traffic steering message process may be performed between the UP1 and the CP.
  • the control plane can generate routing rules for the data flow and configure the rule to UP1.
  • a process of sending a Configure traffic steering message may be performed between the UP2 and the CP.
  • the CP generates a routing rule for the data flow, and configures the rule to the UP2.
  • FIG. 9 is a schematic structural diagram of a network open function network element 900 according to an embodiment of the present application. It should be understood that the network open function network element shown in FIG. 9 is only an example, and the network open function network element in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. Or not all of the modules in Figure 9 are included.
  • the receiving module 910 is configured to receive a first message, where the first message carries related information of the terminal, and related information of the terminal includes target application device information and/or service information of the terminal.
  • the processing module 920 is configured to determine information about at least one user plane network element according to the related information of the terminal, where the related information of the terminal includes target application device information and/or service information of the terminal.
  • the sending module 930 is configured to send a second message to the control plane network element, where the second message carries information about the at least one user plane network element.
  • the network open function network element in the embodiment of the present application may be configured to determine the user plane network element for the terminal, and the optional user plane network element device may be determined by the network open function network element instead of the application device.
  • the application device does not need to perceive the information of the user plane network element, such as the IP address or deployment status of the user plane, thereby reducing the complexity of the application device and not exposing the network architecture to the application device, which can also increase Network security.
  • the network open function network element determines the user plane network element information according to the target application device information and/or the service information, instead of determining the user plane network element by the control plane network element, which can simplify the function of the control plane network element and configure the data. The amount can also be greatly reduced.
  • the network open function network element may determine the information of the user plane network element according to the service information of the terminal, that is, the terminal may determine or reselect the preferred user plane network element, thereby Improve the efficiency of the terminal service, which in turn can improve the user's business experience.
  • the processing module may be specifically configured to determine, according to the related information, a target network open function network element of the terminal.
  • the sending module may be further configured to send the related information to the target network open function network element;
  • the receiving module may be further configured to receive, by the target network open function network element, according to the related information, send Place The information of at least one user plane network element is described.
  • the processing module may be specifically configured to use the target application device information. Determining the target network open function network element of the terminal; the sending module is specifically configured to send the target application device information and the service information to the target network open function network element.
  • the processing module may be specifically configured to: determine target application device information of the terminal according to the service information. And determining, according to the target application device information, the target network open function network element of the terminal.
  • the foregoing service information may include at least one type of information: an application identifier corresponding to the service, a type of the service, and a behavior of the service.
  • the first message may carry the related information.
  • the first message may carry the identifier of the terminal in addition to the related information.
  • the processing module may be further configured to determine the control plane network element according to the identifier of the terminal.
  • the second message may be a user plane path determination request message or a user plane path redetermination request message.
  • the receiving module may be specifically configured to receive a first message sent by an application device or a domain name system device that is currently serving the terminal.
  • the receiving module is specifically configured to receive the first message forwarded by another network open function network element.
  • FIG. 10 is a schematic structural diagram of a control plane network element 1000 according to an embodiment of the present application. It should be understood that the control plane network element shown in FIG. 10 is only an example, and the control plane network element of the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 10, or To include all the modules in Figure 10.
  • the receiving module 1010 is configured to receive a second message sent by the network open function network element, where the second message is used to determine a user plane network element for the terminal, and the second message carries information of at least one user plane network element.
  • the processing module 1020 is configured to determine, according to the information of the at least one user plane network element, a target user plane network element for the terminal.
  • the information of the at least one user plane network element carried in the second message may be the user plane network element determined by the network open function. That is to say, when the control plane network element determines the target user plane for the terminal, it can be determined within a more reasonable user plane network element, thereby improving the efficiency of the control plane to determine the user plane, and determining that it can be more Good for the user side of the terminal service.
  • the processing module may be specifically configured to: obtain service information of the terminal, and according to the at least one user plane network element information and the service information, from the at least one user plane network element The terminal determines a target user plane network element.
  • the second message may further carry service information of the terminal.
  • the processing module may be specifically configured to obtain service information of the terminal from the second message.
  • the second message may be a user plane path selection request message or a user plane path reselection request message.
  • FIG. 11 is a schematic structural diagram of a control plane network element 1100 according to another embodiment of the present application. It should be understood that the control plane network element shown in FIG. 11 is only an example, and the control plane network element in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 11, or To include all the modules in Figure 11.
  • the receiving module 1110 is configured to receive a first message, where the first message carries service information of the terminal.
  • the processing module 1120 is configured to obtain service information of the terminal from the first message.
  • the processing module 1120 is further configured to determine, according to the service information of the terminal, a target user plane network element for the terminal.
  • control plane network element determines the information of the target user plane network element according to the service information of the terminal, so that a better user plane network element can be determined for the terminal, thereby improving the serving of the terminal. Efficiency, which in turn can improve the user's business experience.
  • the first message may be a user plane path selection request message or a user plane path reselection request message.
  • the receiving module may be specifically configured to receive the first message sent by an application device or a domain name system device that is currently serving the terminal.
  • FIG. 12 is a schematic structural diagram of a network open function network element 1200 according to another embodiment of the present application. It should be understood that the network open function network element shown in FIG. 12 is only an example, and the network open function network element in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. Or not all of the modules in Figure 12 are included.
  • the receiver 1210 can be used to perform the steps or operations that the receiving module 910 of FIG. 9 can perform.
  • the processor 1220 can be used to perform the steps or operations that the processing module 920 of FIG. 9 can perform.
  • the transmitter 1230 can be used for The steps or operations that can be performed by the transmitting module 930 in FIG. 9 are performed. For the sake of brevity, it will not be repeated here.
  • FIG. 13 is a schematic structural diagram of a control plane network element 1300 according to another embodiment of the present application. It should be understood that the control plane network element shown in FIG. 13 is only an example, and the control plane network element in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 13, or To include all the modules in Figure 13.
  • the receiver 1310 can be used to perform the steps or operations that the receiving module 1010 of FIG. 10 can perform, and the processor 1320 can be used to perform the steps or operations that the processing module 1020 of FIG. 10 can perform. For the sake of brevity, it will not be repeated here.
  • control plane network element 1300 may further include a transmitter 1330.
  • the sender 1330 can be configured to send a message to other devices or network elements.
  • FIG. 14 is a schematic structural diagram of a control plane network element 1400 according to another embodiment of the present application. It should be understood that the control plane network element shown in FIG. 14 is only an example, and the control plane network element in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 14, or To include all the modules in Figure 14.
  • the receiver 1410 can be used to perform the steps or operations that the receiving module 1110 of FIG. 11 can perform, and the processor 1420 can be used to perform the steps or operations that the processing module 1120 of FIG. 11 can perform. For the sake of brevity, it will not be repeated here.
  • control plane network element 1400 may further include a transmitter 1430.
  • Transmitter 1430 can be used to send messages to other devices or network elements.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including A number of instructions are used to cause a computer device (which may be a personal computer, device, or communication device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例提供了通信方法、网络开放功能网元和控制面网元。本申请实施例提供的通信方法包括：网络开放功能网元接收第一消息，第一消息携带终端的相关信息，终端的相关信息包括终端的目标应用设备信息和/或业务信息；网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息；网络开放功能网元向控制面网元发送第二消息，第二消息携带所述至少一个用户面网元的信息。本申请实施例提供的通信方法、网络开放功能网元和控制面网元可以为终端确定更好的用户面网元，从而进一步提高用户的业务体验。

Description

通信方法、网络开放功能网元和控制面网元
本申请要求于2017年01月10日提交中国专利局、国际申请号为PCT/CN2017/070803、发明名称为“通信方法、网络开放功能网元和控制面网元”的PCT专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，并且更具体地，涉及通信方法、网络开放功能(Network Exposure Function，NEF)网元和控制面(Control Plan，CP)网元。
背景技术
随着通信技术的不断发展，为了缩短数据流的传输路径，以提高用户的业务体验，为用户的终端服务的控制面网元可以根据终端的位置、用户面(User Plan，用户面)网元的负载均衡等因素为终端的数据流重新确定用户面网元。
传统通信技术中，由控制面网元根据终端的位置、用户面网元的负载均衡等因素为终端确定的用户面网元，不能很好地为终端提供服务，从而影响用户的业务体验。
发明内容
本申请提供的通信方法、网络开放功能网元和控制面网元，可以为终端确定更好的用户面网元，从而进一步提高用户的业务体验。
第一方面，本申请提供了一种通信方法。该通信方法包括：网络开放功能网元接收第一消息，第一消息携带终端的相关信息，终端的相关信息包括终端的目标应用设备信息和/或业务信息；目标应用设备信息是指终端在网络侧为其重选用户面功能后进行业务的应用设备的信息。网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息；能力开放平台网元向控制面网元发送第二消息，第二消息携带所述至少一个用户面网元的信息。
本申请实施例中，可以使得需要为终端确定用户面网元时，可选的用户面网元设备可以由网络开放功能网元确定，而不是由应用设备确定。这样可以使得应用设备不用感知用户面网元的信息，如用户面的互联网协议(Internet Protocol，IP)地址或部署情况等信息，从而可以降低应用设备的复杂度，并且不会使网络架构暴露给应用设备层，这些也能够增加网络安全性。
另外，由网络开放功能网元根据目标应用设备信息和/或业务信息确定用户面网元信息，而不是由控制面网元确定用户面网元，可以使控制面网元的功能简化，数据配置量也可以大大降低。
此外，若终端的相关信息包括终端的业务信息，网络开放功能网元可以根据终端的业务信息确定用户面网元的信息，即可以为终端确定更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
可选地，网络开放功能网元可以从网络侧设备，比如控制面网元，获取终端的位置信息，然后根据终端的位置信息以及终端的相关信息，确定至少一个用户面网元的信息。
在一种可能的实现方式中，终端的相关信息包括终端的目标应用设备信息。此时， 网络开放功能网元根据终端的相关信息确定至少一个用户面网元的信息，具体包括：网络开放功能有网元根据终端的目标应用设备信息确定至少一个用户面元的信息。
在一种可能的实现方式中，终端的相关信息包括终端的业务信息。此时，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，具体包括：网络开放功能网元根据终端的业务信息，确定至少一个用户面网元的信息。
在一种可能的实现方式中，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，包括：网络开放功能网元根据终端的相关信息，确定终端的目标网络开放功能网元；网络开放功能网元向目标网络开放功能网元发送终端的相关信息；网络开放功能网元接收目标网络开放功能网元根据终端的相关信息，发送的至少一个用户面网元的信息。
该实现方式中，可以由多个网络开放功能网元共同实现终端的用户面的确定，从而可以均衡网络开放功能网元的负担，进而可以提高网络开放功能网元的效率。
可选地，若终端的相关信息包括目标应用设备信息和业务信息，则网络开放功能网元根据终端的相关信息，确定目标网元开放功能网元，可以包括：网络开放功能网元根据目标应用设备信息，确定终端的目标网络开放功能网元；网络开放功能网元向目标网络开放功能网元发送终端的相关信息，包括：网络开放功能网元向目标网络开放功能网元发送目标应用设备信息和业务信息。
可选地，若终端的相关信息包括终端的业务信息，则网络开放功能网元根据终端的相关信息，确定目标网络开放功能网元，包括：网络开放功能网元根据终端的业务信息，确定终端的目标应用设备信息；网络开放功能网元根据目标应用设备信息确定目标网络开放功能网元。网络开放功能网元向目标网络开放功能网元发送终端的相关信息，包括：网络开放功能网元向目标网络开放功能网元发送终端的业务信息。
在一种可能的实现方式中，终端的相关信息包括目标应用设备信息。其中，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，包括：网络开放功能网元根据终端的位置信息和目标应用设备信息，确定至少一个用户面网元信息。
其中，终端的位置信息可以是网元开放功能网元从控制面网元获取的。
可选地，网络开放功能网元根据终端的位置信息和目标应用设备信息，确定至少一个用户面网元信息，可以包括：网络开放功能网元根据终端的位置信息和该目标应用设备信息(可以称为第一应用设备信息)确定另一目标应用设备信息(可以称为第二应用设备信息)；网络开放功能网元根据第二应用设备信息确定至少一个用户面网元信息。
其中，第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
在一种可能的实现方式中，终端的相关信息包括目标应用设备信息。其中，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，包括：网络开放功能网元根据目标应用设备信息(可以称为第一应用设备信息)确定目标网络开放功能网元；网络开放功能网元向目标网络开放功能网元发送第一应用设备信息；网络开放功能网元接收目标网络开放功能网元根据终端的位置信息和第一应用设备信息发送的第二应用设备信息；网络开放功能网元根据第二应用设备信息确定至少一个用户面网元信息。
可选地，网络开放功能网元可以根据第一目标应用设备信息和终端的位置信息确定 目标网络开放功能网元。
其中，终端的位置信息可以是目标网元开放功能网元从控制面网元获取的。
其中，第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
可选地，若终端的相关信息还包括终端的业务信息，则网络开放功能网元根据第二应用设备信息确定至少一个用户面网元信息，可以包括：网络开放功能网元根据终端的业务信息和第二应用设备信息确定至少一个用户面网元信息。
在第一方面或上述任意一种实现方式中，可选地，上述业务信息可以包括以下至少一种信息：业务对应的应用标识、业务的类型，业务的行为。
可选地，第一消息可以携带终端的相关信息。
可选地，第一消息还可以携带终端的标识。此时，该通信方法还可以包括：网络开放功能网元根据终端的标识，确定控制面网元。
可选地，第二消息为用户面路径选择请求消息或用户面路径重选择请求消息。
可选地，网络开放功能网元接收第一消息，可以包括：网络开放功能网元接收当前为终端服务的应用设备或域名系统设备发送的第一消息。
目标应用服务信息可以是指当网络侧为终端重新选择用户面网元设备后，为终端提供应用服务的应用设备的信息，可以是应用设备的IP地址、标识、名称或者域名信息等。
第二方面，本申请提供了另一种通信方法。该通信方法包括：控制面网元接收网络开放功能网元发送的第二消息，第二消息用于请求为终端确定用户面网元，第二消息携带至少一个用户面网元的信息；控制面网元根据所述至少一个用户面网元的信息，为终端确定目标用户面网元。
该通信方法中，第二消息携带的至少一个用户面网元的信息可以是网络开放功能确定的用户面网元。也即是说，控制面网元为所述终端确定目标用户面时，可以在一个更合理的用户面网元范围内进行确定，从而可以提高控制面确定用户面的效率，也可以确定能够更好地为所述终端服务的用户面。
可选地，该通信方法还可以包括：控制面网元确定终端的业务信息。此时，控制面网元根据所述至少一个用户面网元的信息，为终端确定目标用户面网元，可以包括：控制面网元根据所述至少一个用户面网元的信息和终端的业务信息，从所述至少一个用户面网元中为终端确定目标用户面网元。
控制面网元可根据终端的业务信息确定用户面网元的信息，即可以为终端确定更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
可选地，第二消息还可以携带终端的业务信息。此时，控制面网元确定述终端的业务信息，可以包括：控制面网元从第二消息中确定终端的业务信息。
可选地，控制面网元可以接收当前为终端服务的应用设备发送的终端业务信息，也可以接收网络开放功能网元发送的终端业务信息。
可选地，第二消息可以为用户面路径确定请求消息或用户面路径重选确定请求消息。
第三方面，本申请提供了另一种通信方法。该通信方法包括：控制面网元接收第一消息，第一消息携带终端的业务信息和/或目标应用设备信息；控制面网元根据第一消息为终端确定目标用户面网元。
该通信方法中，控制面网元根据终端的业务信息和/或目标应用设备信息确定目标用户面网元的信息，可以为终端确定更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
可选地，第一消息可以为用户面路径选择请求消息或用户面路径重选择请求消息。
可选地，控制面网元接收第一消息，可以包括：控制面网元接收当前为终端服务的应用设备或域名系统设备发送的所述第一消息。
可选地，控制面网元接收第一消息，可以包括：控制面网元接收网络开放功能网元发送的第一消息，第一消息携带目标应用设备信息。该目标应用设备信息(可以称为第二应用设备信息)可以是网络开放功能网元根据第一应用设备信息和终端的位置信息确定的。终端的位置信息可以是网络开放功能网元从控制面网元获取的。
其中，第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
也就是说，控制面网元可以根据更小范围的应用设备信息为终端确定更合适的用户面网元。
第四方面，本申请实施例提供了一种网络开放功能网元，所述网络开放功能网元包括用于执行第一方面或第一方面中任意一种可能的实现方式中的通信方法的模块。
第五方面，本申请实施例提供了一种控制面网元，所述控制面网元包括用于执行第二方面或第二方面中任意一种可能的实现方式中的通信方法的模块。
第六方面，本申请实施例提供了一种控制面网元，所述控制面网元包括用于执行第三方面或第三方面中任意一种可能的实现方式中的通信方法的模块。
第七方面，本申请实施例提供了一种网络开放功能网元，所述网络开放功能网元包括接收器、发送器和处理器，所述接收器、发送器和处理器用于执行第一方面或第一方面中任意一种可能的实现方式中的通信方法的模块。
第八方面，本申请实施例提供了一种控制面网元，所述控制面网元包括接收器和处理器，所述接收器和处理器用于执行第二方面或第二方面中任意一种可能的实现方式中的通信方法的模块。
第九方面，本申请实施例提供了一种控制面网元，所述控制面网元包括接收器和处理器，所述接收器和处理器用于执行第三方面或第三方面中任意一种可能的实现方式中的通信方法的模块。
第十方面，本申请实施例提供了一种计算机可读介质，所述计算机可读介质存储用于网络开放功能网元执行的程序代码，所述程序代码包括用于执行第一方面中或第一方面中任意一种可能的实现方式中的通信方法的指令。
第十一方面，本申请实施例提供了一种计算机可读介质，所述计算机可读介质存储用于控制面网元执行的程序代码，所述程序代码包括用于执行第二方面中或第二方面中任意一种可能的实现方式中的通信方法的指令。
第十二方面，本申请实施例提供了一种计算机可读介质，所述计算机可读介质存储用于控制面网元执行的程序代码，所述程序代码包括用于执行第三方面中或第三方面中任意一种可能的实现方式中的通信方法的指令。
第十三方面，本发明实施例还提供了一种包含指令的计算机程序产品，当其在计算 机上运行时，使得计算机执行上述第一方面所述的通信方法。
第十四方面，本发明实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的通信方法。
第十五方面，本发明实施例还提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第三方面所述的通信方法。
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图1是可以应用本申请实施例的通信方法的示例性系统架构图。
图2是本申请一个实施例的通信方法的示例性流程图。
图3是本申请另一个实施例的通信方法的示例性流程图。
图4是本申请一个实施例的通信方法的示例性交互图。
图5是本申请另一个实施例的通信方法的示例性交互图。
图6是本申请另一个实施例的通信方法的示例性流程图。
图7是本申请另一个实施例的通信方法的示例性交互图。
图8是本申请另一个实施例的通信方法的示例性交互图。
图9是本申请一个实施例的网络开放功能网元的示例性结构图。
图10是本申请一个实施例的控制面网元的示例性结构图。
图11是本申请另一个实施例的控制面网元的示例性结构图。
图12是本申请另一个实施例的网络开放功能网元的示例性结构图。
图13是本申请另一个实施例的控制面网元的示例性结构图。
图14是本申请另一个实施例的控制面网元的示例性结构图。
具体实施方式
为了更好地介绍本申请实施例的通信方法和各种网元，下面先介绍可以应用本申请实施例的通信方法和各种网元的通信系统。
图1是可以应用本申请实施例的通信方法和各种网元的通信系统的示例性结构图。应理解，本申请实施例并不限于图1所示的系统架构中，如可以包括更多或更少的网元或设备。此外，图1中的装置可以是硬件，也可以是从功能上划分的软件或者以上二者的结合。
控制面网元110用于实现控制面功能，如实现终端170的附着过程、会话建立等。一般来说，控制面网元传输控制信息。
用户面网元120用于实现用户面功能。具体而言，用户面网元120可以接收和处理终端170的数据包。例如，用户面网元120可以接收终端170的上下行数据包，并根据数据流的转发规则向其他网元转发和处理上下行数据包。
接入网(Access Network，AN)130通常指无线接入设备，如未来新无线(New Ratio，NR)网络中的基站设备、小基站设备(Pico)等。AN 130可以接收终端170发送的上行数据包，也可以接收用户面网元120发送的下行数据包并转发给终端170。
网络开放功能网元140维护网络提供或者开放的服务列表。它作为针对应用的功能单元，从包括运营商的应用以及第三方应用的应用接收服务请求，进一步地向相关的网络功能提供请求的服务，还可以授权应用，并且计费与过载控制等。
域名系统(Domain Name System，DNS)设备150是指因特网上作为域名和IP地址相互映射的一个分布式数据库，能够使用户更方便的访问互联网，而不用去记住能够被机器直接读取的IP数串。通过主机名，最终得到该主机名对应的IP地址的过程叫做域名解析(或主机名解析)。
应用设备(Application Service，AS)160是指提供应用的设备，比如提供聊天应用的设备、提供游戏应用的设备等。具体地，可以是运营商的应用设备，也可以是不属于运营商的第三方应用的设备。
终端170可以是用户设备(User Equipment，UE)。UE可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网(Core Network)进行通信。UE可称为接入终端、终端设备、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、无线通信设备、用户代理或用户装置。UE可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它设备、车载设备、可穿戴设备或物联网、车辆网中的终端设备以及未来网络中的任意形态的终端设备等。
当终端170通过网络侧为其选择的用户面网元建立的PDU会话，与应用设备160建立应用层通信后，应用设备160可以向控制面发送用户面路径(重)选择请求消息，由控制面网元110根据终端170的位置、用户面网元120的负载均衡等因素为终端170确定用户面网元。但通常情况下，使用该方法为终端确定的用户面网元不能很好地为终端提供服务，从而影响用户的业务体验。因此，本申请实施例提出了为终端确定用户面网元的新方法。
图2为本申请一个实施例的通信方法的示例性流程图。应理解，图2示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图2中的各个操作的变形。此外，图2中的各个步骤可以按照与图2呈现的不同的顺序来执行，并且有可能并非要执行图2中的全部操作。
S210，网络开放功能网元接收第一消息，第一消息携带终端的相关信息，终端的相关信息包括终端的目标应用设备信息和/或业务信息。
或者可以说，该第一消息可以用于请求为终端确定用户面网元。
其中，第一消息用于请求为终端确定用户面网元，可以包括：第一消息用于请求为终端重新确定用户面网元。也就是说，网络侧重新为当前终端与应用设备通信的PDU会话选择用户面网元。具体而言，该第一消息可以是用户面路径选择请求(UP path selection request)消息或用户面路径重选择请求(UP path reselection request)消息。
第一消息也可以是具有其他功能的消息。换句话说，只要是能够触发网络开放功能网元为终端确定用户面网元的消息均属于本申请实施例中的第一消息的范畴。
本申请的实施例中，该网络开放功能网元可以称为中心网络开放功能，可以简称为网络开放功能-CN。
终端的目标应用设备信息可以包括目标应用设备的位置、标识信息、域名和IP地址中至少一种信息。比如，终端进行腾讯业务，那么，目标应用设备信息可以是“腾讯”，也可以是“腾讯设备的IP地址”，或者腾讯的域名等。
终端的目标应用设备是指网络侧设备(如网络开放功能网元)为确定用户面网元后， 为终端服务的应用设备。
终端的业务信息可以包括终端的业务的应用标识、终端的业务类型或终端的业务行为等等信息。业务的应用标识可以是指业务的内容的标识，比如具体的业务内容，根据该业务的应用标识可以确定业务的内容。业务类型可以是业务的具体类型，例如，终端的业务类型可以是内容分发网络(Content Delivery Network，CDN)业务或视频业务等。终端的业务行为可以是指终端的具体行为，比如，终端的业务行为可以是注册、登陆或注销等。
S220，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息。
所述至少一个用户面网元可以是网络侧为了使得终端可以进行目标应用设备信息和/或业务信息所标识的应用业务而确定的用户面设备。
所述至少一个用户面网元信息可以是所述至少一个用户面网元的标识信息，用户面网元的标识信息用于标识用户面网元，可以包括用户面网元的IP地址或者媒体接入控制(Media Access Control，MAC)地址等信息。
S230，网络开放功能网元向控制面网元发送第二消息，该第二消息携带所述至少一个用户面网元的信息。
该第二消息可以是UP path selection request消息或UP path reselection request消息。
本申请实施例的通信方法中，一方面使得需要为终端确定用户面网元时，可选的用户面网元设备可以由网络开放功能网元确定，而不是由应用设备确定。这样可以使得应用设备不用感知用户面网元的信息，如用户面的IP地址或部署情况等信息，从而可以降低应用设备的复杂度，并且不会使网络架构暴露给应用设备，这些也能够增加网络安全性。
另一方面，由网络开放功能网元根据应用设备信息和/或业务信息确定用户面网元的信息，而不是由控制面网元确定用户面网元，可以使控制面的功能简化，数据配置量也可以大大降低。
此外，若终端的相关信息包括终端的业务信息，网络开放功能网元可以根据终端的业务信息确定用户面网元的信息，即可以为终端确定或重选更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
本申请实施例中，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，具体可以包括：由该网络开放功能网元根据终端的相关信息，为终端确定至少一个用户面网元的信息。
网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，也可以包括：网络开放功能网元将终端的相关信息中的全部或部分信息发送给其他网络开放功能网元，由其他网络开放功能网元根据终端的不全或部分相关信息终端确定至少一个用户面网元的信息；然后网络开放功能接收上述其他网络开放功能网元发送的所述至少一个用户面网元的信息。
也就是说，本申请实施例的通信方法中，可以由多个网络开放功能网元共同实现终端的用户面的选择，从而可以均衡网络开放功能网元的负担，进而可以提高网络开放功能网元的效率。
下面介绍由该网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息的具体实施方式。
其中，网络开放功能上可以预先获取一个或多个应用设备的信息、以及一个或多个用户面网元的信息。例如：当部署应用设备或者应用设备上电时，将应用设备信息(比如应用设备名称、位置、或者该应用设备能够提供的业务的信息等)注册到网络开放功能；同时，为该应用设备服务的用户面网元信息也注册或者配置在网络开放功能上。也就是说，网络开放功能上可以预先获得应用设备信息和为应用设备服务的用户面网元信息的对应关系。
网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息的几种示例性实现方式如下。
第一种：若终端的相关信息包括终端的目标应用设备信息，则网络开放功能网元根据终端的相关信息，获取确定至少一个用户面网元的信息，具体可以包括：网络开放功能网元根据终端的目标应用设备信息，确定为该目标应用设备服务的一个或多个用户面网元的信息。
该目标应用设备信息可以包括目标应用设备的位置信息(如腾讯设备的位置)、目标应用设备的标识信息(如“腾讯”应用标识)、目标应用设备的域名(如腾讯设备的域名)和腾讯设备的IP地址中至少一种信息。
例如，当目标应用设备信息包括目标应用设备的标识信息时，网络开放功能网元可以根据终端的目标应用设备的标识信息(比如应用标识)以及预先获得的应用设备信息(包括应用设备标识或者应用设备的位置等)和为应用设备服务的用户面网元信息的对应关系，确定为该目标应用设备服务的一个或多个用户面网元的信息。
可选地，网络开放功能网元根据目标应用设备信息确定用户面网元时，具体可以根据终端的位置信息和目标应用设备信息确定用户面网元。
终端的位置信息可以是当前为终端服务的应用设备发送给网络开放功能网元的，也可以是网络开放功能网元从网络侧设备(比如控制面网元)获取的。
网络开放功能网元从控制面网元获取终端的位置信息的一种实施方式可以包括：网络开放功能网元向控制面网元发送用于获取终端位置信息的请求消息，该请求消息包括终端的标识，以便于控制面网元根据终端的标识确定终端的位置；网络开放功能网元接收控制面网元发送的终端的位置信息。
可选地，网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元时，具体可以包括：网络开放功能网元根据终端的位置信息和该目标应用设备信息(可以称为第一应用设备信息)确定得到另一目标应用设备信息(可以称为第二应用设备信息)，然后再根据该第二应用设备信息确定用户面网元信息。
其中，如终端的相关信息包括终端的业务信息，网络开放功能网元可以根据终端的业务信息和第二应用设备信息确定用户面网元信息，从而可以确定得到能够为终端更好提高服务的用户面网元。
第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
换句话说，第二目标应用设备信息与第一目标应用设备信息相比，更具体或更详细或更准确。网络开放功能网元通过第二应用设备信息可以定位到特定的一个或者特定的一组应用设备。
例如，网络开放功能网元可以向控制面网元发送用于获取终端位置信息的请求消息，以获取所述终端位于上海市金桥路的位置信息，然后网络开放功能可以根据终端的位置信息(上海市金桥路)和第一应用设备信息(比如，腾讯设备)，确定第二应用设备信息(上海市金桥路的腾讯设备)。这样，网络开放功能可以根据目标应用设备为位于上海市金桥路的腾讯设备确定用户面网元，确定的用户面网元即为为上海市金桥路的腾讯设备服务的用户面网元。
可选地，网络开放功能根据终端的位置信息和目标应用设备信息确定用户面网元时，具体可以包括：网络开放功能网元根据该目标应用设备信息(可以成为第一应用设备信息)确定目标网络开放功能网元；网络开放功能网元向目标网络开放网元发送第一应用设备信息；网络开放功能网元接收目标网络开放功能网元根据终端的位置信息和第一应用设备信息确定的第二应用设备信息；网络开放功能网元根据第二应用设备信息确定用户面网元信息。
若终端的相关信息包括终端的业务信息，网络开放功能网元可以根据终端的位置信息和第二应用设备信息确定用户面网元信息。
其中，第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
可选地，目标网络开放功能网元获取终端的位置信息的一种实现方式包括：目标网络开放功能网元向控制面网元发送终端的标识，以便于控制面网元根据终端的标识确定终端的位置；目标网络开放功能网元接收控制面网元发送的终端位置信息。
例如，网络开放功能网元根据第一应用设备信息(腾讯设备)确定目标网络开放功能网元，并向目标网络开放功能网元发送第一应用设备信息(腾讯设备)。目标网络开放功能网元接收第一应用设备信息，并向控制面网元发送终端的标识。控制面网元接收终端的标识，根据终端的标识确定终端位于上海市金桥路，并向目标网络开放功能网元发送终端位置信息。目标网元开放功能网元接收控制面网元发送的终端位置信息，并根据终端位于上海市金桥路和腾讯设备，确定第二应用设备信息(即上海市金桥路的腾讯设备)，并向网络开放功能网元发送第二应用设备信息。网络开放功能网元接收第二应用设备信息，并根据第二应用设备信息确定得到为上海市金桥路腾讯设备提供服务的用户面网元。
第二种：若终端的相关信息包括终端的业务信息，则网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，具体可以包括：网络开放功能网元根据终端的业务信息确定终端的目标应用设备信息，目标应用设备信息对应的是为终端确定用户面网元后，为终端服务的应用设备；网络开放功能网元根据该目标应用设备信息确定一个或多个用户面网元的信息；网络开放功能网元根据终端的业务信息从所述一个或多个用户面网元的信息中确定至少一个用户面网元的信息。
例如：网络开放功能网元可以先根据业务信息，从网络开放功能网元上配置的应用设备信息(包括应用设备能够提供的业务的信息等)中，找到能够提供该业务信息对应的业务的应用设备；然后根据该应用设备信息和用户面网元信息的对应关系，确定为该目标应用设备服务的一个或多个用户面网元信息。
可选地，网络开放功能网元根据该目标应用设备信息确定一个或多个用户面网元信 息时，具体可以包括：网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元。
其中，网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元的具体实现方式，可以参考第一种中网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元的具体实现方式。为了简洁，此处不再赘述。
第三种：若终端的相关信息包括终端的业务信息和目标应用设备信息，则网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，具体可以包括：网络开放功能网元根据目标应用设备信息确定一个或多个用户面网元的信息网络开放功能网元根据终端的业务信息和该一个或多个用户面网元信息，确定至少一个用户面网元信息。
可选地，网络开放功能网元根据该目标应用设备信息确定一个或多个用户面网元信息时，具体可以包括：网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元。
其中，网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元的具体实现方式，可以参考第一种中网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元的具体实现方式。为了简洁，此处不再赘述。
下面介绍网络开放功能网元将终端的全部或部分相关信息发送给其他网络开放功能网元，由其他网络开放功能网元根据部分或部分相关信息为终端确定至少一个用户面网元的信息的具体实施方式。
具体地，网络开放功能网元根据终端的相关信息，确定至少一个用户面网元的信息，具体可以包括：网络开放功能网元根据终端的相关信息，确定目标网络开放功能网元；网络开放功能网元向目标网络开放功能网元发送终端的相关信息；网络开放功能网元接收目标网络开放功能网元根据终端的相关信息确定并发送的至少一个用户面网元信息。
若终端的相关信息包括目标应用设备信息，则网络开放功能网元根据终端相关信息，确定终端的目标网络开放功能网元，具体可以包括：网络开放功能网元根据目标应用设备信息，确定为该目标应用设备服务的目标网络开放功能网元。
若终端的相关信息包括业务信息，则网络开放功能网元根据终端的相关信息，确定终端的目标网络开放功能网元，具体可以包括：网络开放功能网元根据所述业务信息，确定提供该业务信息对应的业务的目标应用设备信息；网络开放功能网元根据该目标应用设备信息确定为该目标应用设备服务的目标网络开放功能网元。
若终端的相关信息包括目标应用设备信息和业务信息，则网络开放功能网元根据终端的相关信息，确定终端的目标网络开放功能网元，具体可以包括：网络开放功能网元根据目标应用设备信息，确定为该目标应用设备服务的目标网络开放功能网元。
可选地，目标网络开放功能网元根据目标应用设备信息确定用户面网元信息时，可以根据目标应用设备信息以及配置数据(比如为该应用设备服务的用户面网元)确定用户面网元信息。进一步地，目标网络开放功能网元还可以根据各用户面网元的负载情况确定用户面网元。
可选地，目标网络开放功能网元根据目标应用设备信息确定用户面网元时，具体可以根据终端的位置信息和目标应用设备信息确定用户面网元。
终端的位置信息可以是中心网络开放功能网元发送给目标网络开放功能网元的，也可以是从控制面网元获取的。
中心网络开放功能网元上的终端位置信息可以是当前为终端服务的应用设备发送给中心网络开放功能网元的，也可以是中心网络开放功能网元从控制面网元获取的。
中心网络开放功能网元从控制面网元获取终端位置信息的一种实现方式如前所述，为了简洁，此处不再赘述。
目标网络开放功能网元根据终端的位置信息和目标应用设备信息确定用户面网元信息的一种实现方式包括：网络开放功能网元根据终端的位置信息和目标应用设备信息(可以称为第一应用设备信息)确定第二应用设备信息，并根据第二应用设备信息确定用户面网元信息。
其中，第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
如第一应用设备信息可以是腾讯设备，终端的位置信息可以是上海市金桥路，第二应用设备信息可以是上海市金桥路的腾讯设备。
若终端的相关信息包括终端的业务信息，目标网络开放功能网元可以根据终端的位置信息和第二应用设备信息确定用户面网元信息。
本申请实施例中，终端的目标应用设备可以是距离终端较近、甚至最近的应用设备。
本申请实施例中的控制面网元可以是网络开放功能网元或目标网元开放功能网元根据终端的标识确定的控制面网元。
具体而言，终端的标识可以是终端的外部标识，外部标识可以是应用设备对终端的标识。相应地，网络开放功能网元根据终端的标识确定控制面网元，具体可以包括：网络开放功能网元根据终端的外部标识确定终端在运营商通信网络内部的标识；网络开放功能网元根据终端在运营商通信网络内部的标识，确定在该运营商通信网内为终端服务的控制面网元。
网络开放功能网元根据终端的外部标识确定终端在运营商通信网络内部的标识的具体实施方式可以参考现有技术，为了简洁，此处不再赘述。
若控制面网元是网络开放功能网元根据终端的标识确定，则该终端的标识可以携带于第一消息中。
本申请实施例中，网络开放功能网元接收第一消息，具体可以包括：网络开放功能网元接收当前为终端服务的应用设备或DNS设备发送的第一消息。
当前为终端服务的应用设备或DNS设备可以在多种情况下发送第一消息。如终端发生移动后，当前的应用设备可能不能为UE发提供较好的服务，这时应用设备可能就会发起第一消息，请求为UE重选应用设备或者用户面网元。或如，当DNS设备接收到终端发起的域名解析消息时，如果终端当前进行的业务为CDN业务或者视频业务，为了能够为终端提供较好的服务，DNS设备可能发起第一消息，以便于通信网络能够为终端确定较好的用户面网元。
网络开放功能网元根据终端的相关信息，为终端确定一个或者多个用户面网元，且向控制面网元发送所述确定的一个或者多个用户面网元信息后，控制面网元可以直接将网络开放功能确定的该用户面网元确定为为终端服务的用户面网元(例如：网络开放功能发送所述确定一个用户面网元时，可以理解为网络开放功能在多个用户面中确定一个用户面网元)，也可以采用传统方法，如根据用户面网元的负载均衡等信息从网络开放 功能网元为终端确定的用户面网元中确定更合适的用户面网元(例如：网络开放功能发送所述确定的多个用户面网元时)，以进一步提高用户体验。
图3是本申请另一个实施例的通信方法的示例性流程图。应理解，图3示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图3中的各个操作的变形。此外，图3中的各个步骤可以按照与图3呈现的不同的顺序来执行，并且有可能并非要执行图3中的全部操作。
S310，控制面网元接收网络开放功能网元发送的第二消息，该第二消息用于请求为终端确定用户面网元，该第二消息携带至少一个用户面网元的信息。
其中，控制面网元可以对应图2所示的通信方法中的控制面网元，网络开放功能网元可以对应图2所示的通信方法中的网络开放功能网元。
具体而言，所述至少一个用户面网元可以是终端所属的本地网络中的用户面网元。
具体而言，所述至少一个用户面网元的信息可以包括所述至少一个用户面网元标识信息，比如不限于用户面设备的IP地址等。
具体而言，该第二消息可以是UP path selection request消息或UP path reselection request消息。
S320，控制面网元根据所述至少一个用户面网元的信息，确定终端的目标用户面网元。
具体而言，控制面网元可以根据所述至少一个用户面网元的信息，从所述至少一个用户面网元中，选取一个目标用户面网元。
更具体地，控制面网元从所述至少一个用户面网元中选取目标用户面网元的方法可以参考现有技术，如控制面网元可以根据所述终端的位置信息或用户面网元的负载信息等，从所述至少一个用户面网元中选取目标用户面网元。
应理解，该目标用户面网元可以是当前为终端服务的用户面网元，也可以是其他用户面网元。此处所述的确定目标用户面网元可以是重选确定目标用户面网元。
本申请实施例中，第二消息携带的至少一个用户面网元的信息可以是网络开放功能确定的用户面网元。也即是说，控制面网元为终端确定目标用户面时，可以在一个更合理的用户面网元范围内进行确定，从而可以提高控制面确定用户面的效率，也可以确定能够更好地为所述终端服务的用户面。
本申请实施例的通信方法还可以包括：控制面网元确定终端的业务信息。相应地，控制面网元根据所述至少一个用户面网元的信息，为终端确定目标用户面网元，具体可以包括：控制面网元根据所述至少一个用户面网元的信息和所述业务信息，从所述至少一个用户面网元中为终端确定目标用户面网元。
其中，控制面网元确定终端的业务信息，可以包括：控制面网元从网络开放功能网元处获取终端的业务信息，或者控制面网元从其他网元获取终端的业务信息等。
控制面网元根据所述至少一个用户面网元的信息和所述业务信息，可以从所述至少一个用户面网元中为终端确定能够为终端提供所述业务信息对应的业务的目标用户面网元。
具体而言，所述终端的业务信息可以包括所述终端的业务的应用标识、所述终端的业务类型或所述终端的业务行为等等信息。
例如，所述终端的业务类型可以是CDN业务或视频业务等。例如，所述终端的业务 行为可以是注册、登陆或注销等。例如，所述终端的业务的应用标识可以是标识业务的内容的标识，可以是具体的业务内容。
本申请实施例中，第二消息还可以携带所述终端的业务信息。相应地，控制面网元确定所述终端的业务信息，具体可以包括：控制面网元从第二消息中确定所述终端的业务信息。
图4是本申请一个实施例的通信方法的示例性交互图。应理解，图4示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图4中的各个操作的变形。
此外，图4中的各个步骤可以按照与图4呈现的不同的顺序来执行，并且有可能并非要执行图4中的全部操作。
而且，图2和图3所示的通信方法中的技术特征可以适用于图4所示的通信方法，为了简洁，此处不再赘述。
S402，UE和当前为终端服务的用户面网元(简称UP1)建立PDU会话连接。此时，UE与当前为UE服务的应用设备(简称AS1)之间的上下行数据流经过UP1。
S404，AS1向网络开放功能网元(NEF1)发送UP path(re)selection request消息。该消息中可以包括UE的外部标识、目标应用设备信息和UE的业务信息中的一种或多种，或还可以包括其他信息。目标应用设备(简称AS2)是指为UE重选用户面网元后，为UE服务的应用设备。
具体而言，如UE发生移动后，若AS1不能为UE发提供较好的服务，AS1可以从应用层获取UE的位置信息或标识，AS1根据UE的位置信息或标识为UE确定AS2，然后AS1可以发起UP path(re)selection request消息，请求为UE重选设备或者用户面网元。
S406，若UP path(re)selection request消息中包括UE的外部标识，则NEF1可以根据UE的外部标识确定UE在运营商通信网内的标识，并根据UE在通信网内的标识确定控制面网元(简称为CP)。
S408，若UP path(re)selection request消息中包括目标应用设备信息和/或业务信息，则NEF1可以根据目标应用设备信息和/或业务信息确定本地用户面网元的信息(简称UP2)。其中，本地用户面功能网元的信息对应图2或图3中所述的至少一个用户面网元的信息。AS2的信息可以包括AS2的位置信息、名称、域名、IP地址或标识。
NEF1根据目标应用设备信息和/或业务信息确定本地用户面网元的信息的具体实施方式可以参考S220中相关内容，此处不再赘述。
S418，NEF1向控制面网元(简称CP)发送UP path(re)selection消息，该消息包括UP2的信息。
S420，CP可以向NEF1发送UP path(re)selection响应(response)消息。
具体而言，CP向NEF1发送UP path(re)selection response消息，可以通知NEF1已经为UE确定了用户面。
S421，CP可以对UP path(re)selection消息执行合法性检查以及授权。本步骤中也可以包括其它的安全性相关过程。
S422，CP可以向UP2发送本地路由的数据流的信息，如应用数据流的目的IP地址信息。
S423，NEF1向AS1响应用户面功能选择，消息中可以包含有AS2的信息，比如AS2 的IP地址等信息。
S424，AS1向UE通知AS2的信息，以便于UE重定向至AS2。
S426，UE与AS2之间可以经过UP2进行数据流的传输。
如果通信系统中部署了本地网络开放功能(网络开放功能-Local)网元，则图4所示的通信方法可以没有S408，但还可以包括S410至S416。
S410，若UP path(re)selection request消息中包括目标应用设备信息，则NEF1可以根据目标应用设备信息确定NEF-Local网元(简称为NEF2)。其中，NEF-Local网元对应图2所示的通信方法中的目标网络开放功能网元。
若UP path(re)selection request消息中不包括目标应用设备信息，则NEF1可以获取UE的位置信息，比如NEF1向CP发送请求UE的位置信息的请求信息，获取UE的位置信息，根据UE的位置信息确定NEF2.
S412，NEF1向NEF2发送用户面功能请求(function request)消息。该消息中可以包括业务信息和/或应用设备信息，当然，还可以包括UE的外部标识等信息。
S414，NEF2根据UP function request消息确定UP2的信息。NEF2根据UP function request消息确定UP2的信息的具体实施方式可以参考S220中相关内容，此处不再赘述。
S416，NEF2向NEF1发送用户面功能响应(function response)消息，该消息携带UP2的信息。
图5是本申请一个实施例的通信方法的示例性交互图。应理解，图5示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图5中的各个操作的变形。
此外，图5中的各个步骤可以按照与图5呈现的不同的顺序来执行，并且有可能并非要执行图5中的全部操作。
而且，图2和图3所示的通信方法中的技术特征可以适用于图5所示的通信方法，为了简洁，此处不再赘述。
图4所示的通信方法中，由AS1发起用户面网元重选过程。在此之前，UE与AS1应已建立连接。UE与AS1建立连接后，AS1可以在如下任意一种情况下发起用户面网元重选过程。
1)由于UE移动，AS1发现AS1当前不能为UE提供更好的服务，请求为UE重选另一个应用设备，比如更靠近UE的AS2，在这种情况下，由于为UE服务的应用设备位置变化，因此相应地需要为UE重新确定服务的用户面网元。
2)当AS1发现当前为UE服务的UP1不适宜，比如UP1距离为UE服务的AS1较远时，AS1请求为UE发起用户面网元重选过程，为AS1确定更适宜的用户面网元。这种情况下，AS1与AS2即为同一个应用设备。
图5所示的通信方法则是在UE进行业务之前，在查询DNS设备过程中就为UE的业务确定适宜的用户面网元。图5所示的通信方法提前为UE的业务确定用户面网元，在业务初始就可以确定合适的用户面网元，从而可以进一步提升用户的业务体验。
S502，UE和当前为终端服务的用户面网元(简称为UP1)建立PDU会话连接。此时，UE与DNS设备之间的上下行数据流经过UP1。UE的数据流经由DNS设备进行域名解析。
S504，DNS设备向中心网络开放功能网元(简称为NEF1)发送UP path(re)selection  request消息。该消息中可以包括UE的外部标识、目标应用设备信息和UE的业务信息中的一种或多种，或还可以包括其他信息。目标应用设备信息可以是目标应用设备(简称AS2)的IP地址信息或标识，该IP地址信息可以是DNS设备根据UE的业务的域名获取的。目标应用设备即为网络侧设备为终端重选用户面网元后，为终端服务的应用设备。
S506，若UP path(re)selection request消息中包括UE的外部标识，则NEF1可以根据UE的外部标识确定UE在运营商通信网内的标识，并根据UE在通信网内的标识确定控制面网元(简称为CP)。
S508，若UP path(re)selection request消息中包括目标应用设备信息和/或业务信息，则NEF1可以根据目标应用设备信息和/或业务信息确定本地用户面网元(简称为UP2)的信息。其中，本地用户面功能网元的信息对应图2或图3中所述的至少一个用户面网元的信息。
NEF1根据目标应用设备信息(如位置信息或标识)和/或业务信息确定本地用户面网元的信息的具体实施方式可以参考S220中相关内容，此处不再赘述。
S518，NEF1向CP发送UP path(re)selection消息，该消息包括UP2的信息。
S520，CP可以向NEF1发送UP path(re)selection响应(response)消息。
具体而言，CP向NEF1发送UP path(re)selection response消息，可以通知NEF1已经为UE确定了用户面网元。
S521，CP可以对UP path(re)selection消息执行合法性检查以及授权。本步骤中也可以包括其它的安全性相关过程。
S522，CP可以向UP2发送本地路由的数据流的信息，如应用数据流的目的IP地址信息。
S523，NEF1向AS1响应用户面设备选择消息，消息中可以包含有目标应用设备信息，目标应用设备信息可以是AS2的标识信息或IP地址信息等。
S524，AS1通知UE AS2的标识信息，以便于UE重定向至AS2。
S526，UE与AS2之间可以经过UP2进行数据流的传输。
如果通信系统中部署了本地网络开放功能(NEF-Local)网元，则图4所示的通信方法可以没有S408，但还可以包括但还可以包括S410至S416。
S510，若UP path(re)selection request消息中包括目标应用设备信息(如位置信息或标识)，则NEF1可以根据AS2的信息确定NEF-Local网元(简称NEF2)。其中，NEF-Local网元对应图2所示的通信方法中的目标网络开放功能网元。
若UP path(re)selection request消息中不包括目标应用设备信息，则NEF1可以获取UE的位置信息，比如NEF1向CP发送请求UE位置信息的请求信息，获取UE的位置信息，根据UE的位置信息确定NEF2.
S512，NEF1向NEF2发送UP function request消息。该消息中可以包括业务信息和/或目标应用设备信息。当然，还可以包括UE的外部标识等信息。
S514，NEF2根据业务信息确定UP2的信息。NEF2根据业务信息确定UP2的信息的具体实施方式可以参考S220中相关内容，此处不再赘述。
S516，NEF2向NEF1发送UP2的信息。
图6是本申请另一个实施例的通信方法的示例性流程图。应理解，图6示出了通信 方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图6中的各个操作的变形。
此外，图6中的各个步骤可以按照与图6呈现的不同的顺序来执行，并且有可能并非要执行图6中的全部操作。
S610，控制面网元接收第一消息，第一消息携带终端的业务信息或目标应用设备信息。
或者可以说该第一消息用于请求为终端确定用户面网元。
具体而言，该第一消息可以是UP path(re)selection request消息。
具体而言，终端的业务信息可以包括终端的业务的应用标识、终端的业务类型或终端的业务行为等等信息。
例如，终端的业务的应用标识信息可以是表示业务的内容的标识，根据该应用标识可以获知该业务的具体内容，比如“快乐大本营”。例如，终端的业务类型可以是CDN业务或视频业务等。例如，终端的业务行为可以是注册、登陆或注销等。
可选地，目标应用设备信息可以包括目标应用设备的位置信息(如腾讯设备的位置)、目标应用设备的标识信息(如“腾讯”应用标识)、目标应用设备的域名(如腾讯设备的域名)和腾讯设备的IP地址中至少一种信息。
目标应用设备是指为终端确定用户面网元后，为终端服务的应用设备。
可选地，第一消息中的目标应用设备信息(可以称为第二应用设备信息)可以是网络开放功能网元确定的。
具体地，第二应用设备信息可以是网络开放功能网元根据第一应用设备信息和终端的位置信息确定的。
当网络开放功能网元确定第二应用设备信息时，发起用户面重选的应用设备(即当前为终端服务的应用设备)可能不知道目标应用设备的目的地址，那么，网络开放功能网元可以向当前为终端服务的应用设备发送目标应用设备的信息。
具体地，当前为终端服务的应用设备可以先向网络开放功能网元发起消息，请求目标应用设备的IP地址信息，当前为终端服务的应用设备接收目标应用设备的IP地址后，可以通知终端设备发起应用重定向过程，使UE与目标应用设备建立连接。
第一应用设备信息可以对应一个或多个应用设备，第二应用设备信息也可以对应一个或多个应用设备，但是第二应用设备信息对应的应用设备为第一应用设备信息对应的应用设备的全部或部分。
如网络开放功能网元可以根据终端的位置信息(终端位于上海市金桥路)和第一应用设备信息(为终端服务的目标应用设备为腾讯设备)，确定第二应用设备信息(为终端服务的目标应用设备为上海市金桥路的腾讯设备)。并且，网络开放功能网元可以向控制面网元发送第一消息，第一消息携带第二应用设备信息。
网络开放功能网元上的终端位置信息可以是当前为终端服务的应用设备发送给网络开放功能网元的，也可以是网络开放功能网元从控制面网元获取的。
网络开放功能网元从控制面网元获取终端位置信息的一种实施方式可以包括：网络开放功能网元向控制面网元发送终端的标识，控制面网元根据终端的标识确定终端的位置；网络开放功能网元接收控制面网元发送的终端位置信息。
例如，网络开放功能网元可以向控制面网元发送终端的标识，并接收控制面网元发 送的终端位于上海市金桥路的位置信息。然后网络开放功能可以根据终端位于上海市金桥路和目标应用设备为腾讯设备，进一步确定目标应用设备为为上海市金桥路的腾讯设备。
S620，控制面网元根据第一消息为终端确定目标用户面网元。
若第一消息携带终端的业务信息，也就是说，控制面网元可以根据终端的业务信息确定的目标用户面网元可以为终端提供业务信息对应的业务。
例如：控制面网元可以先根据业务信息(例如：“快乐大本营”)，从预先获得的应用设备信息(包括应用设备能够提供的业务的信息等)中，找到能够提供该业务信息对应的业务的目标应用设备(例如：能提供“快乐大本营”的应用设备)；以及根据该应用设备信息和用户面网元信息的对应关系，确定该目标应用设备服务的一个或多个用户面网元的信息。
应理解，该目标用户面网元可以是当前为终端服务的用户面网元，也可以是其他用户面网元。此处所述的确定目标用户面网元可以是重选确定目标用户面网元。
若第一消息携带目标应用设备信息，也就是说，控制面网元可以根据目标应用设备信息为终端确定用户面网元。
例如，控制面网元接收网络开放功能网元发送的目标应用设备信息后，可以根据目标应用设备为位于上海市金桥路的腾讯设备确定用户面网元，确定的用户面网元即为为上海市金桥路的腾讯设备服务的用户面网元设备。
本申请实施例中，控制面网元根据终端的业务信息或目标应用设备信息确定目标用户面网元的信息，因此可以为终端确定更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
本申请实施例的通信方法中，第一消息还可以携带以下至少一种信息：一个或多个用户面网元的信息；终端的数据流的模板信息(UE packet filter information)，用于指示本地用户面网元路由的PDU会话；请求使用目标应用设备的时间段。相应地，控制面网元可以还可以根据上述至少一种信息，为终端确定目标用户面网元的信息。
可选地，控制面网元根据终端的业务信息为终端确定目标用户面网元，可以具体包括：控制面网元根据终端的业务信息，以及位置信息、用户面网元的负载信息等，从所述至少一个用户面网元中选取目标用户面网元。
本申请实施例的通信方法中，控制面网元接收第一消息，可以包括：控制面网元接收当前为终端服务的应用设备或DNS设备发送的第一消息。
当前为终端服务的应用设备或DNS设备可以在多种情况下发送第一消息。如UE发生移动后，当前的应用设备可能不能为UE发提供较好的服务，这时应用设备可能就会发起第一消息，请求为UE重选应用设备或者用户面网元。
或如，当DNS接收到UE发起的域名解析消息时，如果UE当前进行的业务为CDN业务或者视频业务，为了能够为UE提供较好的服务，DNS可能发起第一消息，以便于通信网络能够为UE确定较好的用户面网元。
图7是本申请另一个实施例的通信方法的示例性交互图。应理解，图7示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图7中的各个操作的变形。
此外，图7中的各个步骤可以按照与图7呈现的不同的顺序来执行，并且有可能并 非要执行图7中的全部操作。
而且，图6所示的通信方法中的技术特征可以适用于图7所示的通信方法，为了简洁，此处不再赘述。
S702，UE和当前为UE服务的用户面网元(简称UP1)建立PDU会话连接。此时，UE与当前为终端服务的应用设备(简称AS1)之间的上下行数据流经过UP1。
S704，AS1向控制面网元(简称CP)发送UP path(re)selection request消息。该消息中可以包括终端的业务信息和以下至少一种信息：一个或多个用户面网元的信息；目标应用设备信息；终端的应用数据流标识信息，用于指示本地用户面网元路由的PDU会话；终端请求使用目标应用设备(简称AS2)的时间段。
其中，目标应用设备信息对应的目标应用设备即为图6所示的通信方法中的目标应用设备。
具体而言，如UE发生移动后，若AS1不能为UE发提供较好的服务，AS1可以从应用层获取UE的信息(如位置信息或标识)，AS1根据UE的信息为UE确定AS2，然后AS1可以发起UP path(re)selection request消息，请求为UE重选设备或者用户面网元。
S706，CP根据UP path(re)selection request消息中携带的信息为UP确定目标用户面网元(简称为UP2)的信息。
S708，CP可以对UP path(re)selection消息执行合法性检查以及授权。本步骤中也可以包括其它的安全性相关过程。
S710，CP可以向AS1发送UP path(re)selection响应(response)消息。
具体而言，CP向网络开放功能网元(简称NEF1)发送UP path(re)selection response消息，可以通知NEF1已经为UE确定了用户面。
S712，UP1与CP之间可以执行Configure traffic steering消息过程。通过该消息过程，控制面可以产生数据流的路由规则，并且向UP1配置该规则。
S714，UP2与CP之间可以执行发送Configure traffic steering消息过程.通过该消息过程，CP产生数据流的路由规则，并且向UP2配置该规则。
S716，执行用户面网元重选过程。用户面网元重选过程的实现方式，可以参考传统控制面重选用户面网元的具体实施方式。
S718，UE与AS2之间可以经过UP2进行数据流的传输。
图8是本申请另一个实施例的通信方法的示例性交互图。应理解，图8示出了通信方法的步骤或操作，但这些步骤或操作仅是示例，本申请实施例还可以执行其他操作或者图8中的各个操作的变形。
此外，图8中的各个步骤可以按照与图8呈现的不同的顺序来执行，并且有可能并非要执行图8中的全部操作。
而且，图6所示的通信方法中的技术特征可以适用于图8所示的通信方法，为了简洁，此处不再赘述。
S802，UE和当前为终端服务的用户面网元(简称UP1)建立PDU会话连接。此时，UE与DNS设备之间的上下行数据流经过UP1。
S804，DNS设备向控制面网元(简称CP)发送UP path(re)selection request消息。该消息中可以包括终端的业务信息和以下至少一种信息：一个或多个用户面网元的信息；目标应用设备信息(如位置信息或标识)；UE的应用数据流标识信息，用于指示本地用 户面网元路由的PDU会话；UE请求使用目标应用设备(简称AS2)的时间段。
目标应用设备信息可以包括目标应用设备的IP地址信息，该IP地址信息可以是DNS设备根据UE的业务的域名获取的。
其中，AS2即为图6所示的通信方法中的目标应用设备。
S806，CP根据UP path(re)selection request消息中携带的信息为所述终端确定目标用户面网元(简称为UP2)的信息。
S808，CP可以对UP path(re)selection消息执行合法性检查以及授权。本步骤中也可以包括其它的安全性相关过程。
S810，CP可以向DNS设备发送UP path(re)selection响应(response)消息。
S812，UP1与CP之间可以执行Configure traffic steering消息过程。通过该消息过程，控制面可以产生数据流的路由规则，并且向UP1配置该规则。
S814，UP2与CP之间可以执行发送Configure traffic steering消息过程.通过该消息过程，CP产生数据流的路由规则，并且向UP2配置该规则。
S816，执行用户面网元重选过程。用户面网元重选过程的实现方式，可以参考传统控制面重选用户面网元的具体实施方式。
S818，UE与AS2之间可以经过UP2进行数据流的传输。
图9是本申请一个实施例的网络开放功能网元900的示意性结构图。应理解，图9示出的网络开放功能网元仅是示例，本申请实施例的网络开放功能网元还可包括其他模块或单元，或者包括与图9中的各个模块的功能相似的模块，或者并非要包括图9中的所有模块。
接收模块910，用于接收第一消息，所述第一消息携带终端的相关信息，所述终端的相关信息包括所述终端的目标应用设备信息和/或业务信息。
处理模块920，用于根据所述终端的相关信息，确定至少一个用户面网元的信息，所述终端的相关信息包括所述终端的目标应用设备信息和/或业务信息。
发送模块930，用于向控制面网元发送第二消息，所述第二消息携带所述至少一个用户面网元的信息。
本申请实施例中的网络开放功能网元，可以使得需要为终端确定用户面网元时，可选的用户面网元设备可以由网络开放功能网元确定，而不是由应用设备确定。这样可以使得应用设备不用感知用户面网元的信息，如用户面的IP地址或部署情况等信息，从而可以降低应用设备的复杂度，并且不会使网络架构暴露给应用设备，这些也能够增加网络安全性。
另外，由网络开放功能网元根据目标应用设备信息和/或业务信息确定用户面网元信息，而不是由控制面网元确定用户面网元，可以使控制面网元的功能简化，数据配置量也可以大大降低。
此外，若终端的相关信息包括终端的业务信息，网络开放功能网元可以根据终端的业务信息确定用户面网元的信息，即可以为终端确定或重选更优的用户面网元，从而可以提高为终端服务的效率，进而可以提高用户的业务体验。
所述处理模块可以具体用于根据所述相关信息，确定所述终端的目标网络开放功能网元。此时，所述发送模块还可以用于向所述目标网络开放功能网元发送所述相关信息；所述接收模块还可以用于接收所述目标网络开放功能网元根据所述相关信息，发送的所 述至少一个用户面网元的信息。
若所述发送模块向所述目标网络开放功能网元发送的所述相关信息可以包括所述目标应用设备信息和所述业务信息，则所述处理模块可以具体用于根据所述目标应用设备信息，确定所述终端的所述目标网络开放功能网元；所述发送模块具体用于向所述目标网络开放功能网元发送所述目标应用设备信息和所述业务信息。
若所述发送模块向所述目标网络开放功能网元发送的所述相关信息包括所述业务信息，则所述处理模块可以具体用于：根据所述业务信息确定所述终端的目标应用设备信息，和根据所述目标应用设备信息确定所述终端所述目标网络开放功能网元。
可选地，上述业务信息可以包括一下至少一种信息：业务对应的应用标识、业务的类型，业务的行为。
可选地，所述第一消息可以携带所述相关信息。
所述第一消息除了可以携带所述相关信息，还可以携带所述终端的标识。此时，所述处理模块还可以用于根据所述终端的标识，确定所述控制面网元。
可选地，所述第二消息可以为用户面路径确定请求消息或用户面路径重确定请求消息。
可选地，所述接收模块可以具体用于接收当前为所述终端服务的应用设备或域名系统设备发送的第一消息。
可选地，所述接收模块具体用于接收其他网络开放功能网元转发的所述第一消息。
应理解，图9所示本申请实施例的网络开放功能网元中的各个单元的上述和其它操作和/或功能分别为了实现图2中的通信方法的相应流程，为了简洁，在此不再赘述。
图10是本申请一个实施例的控制面网元1000的示意性结构图。应理解，图10示出的控制面网元仅是示例，本申请实施例的控制面网元还可包括其他模块或单元，或者包括与图10中的各个模块的功能相似的模块，或者并非要包括图10中的所有模块。
接收模块1010，用于接收网络开放功能网元发送的第二消息，所述第二消息用于请求为终端确定用户面网元，所述第二消息携带至少一个用户面网元的信息。
处理模块1020，用于根据所述至少一个用户面网元的信息，为所述终端确定目标用户面网元。
本申请实施例中，第二消息携带的至少一个用户面网元的信息可以是网络开放功能确定的用户面网元。也即是说，控制面网元为所述终端确定目标用户面时，可以在一个更合理的用户面网元范围内进行确定，从而可以提高控制面确定用户面的效率，也可以确定能够更好地为所述终端服务的用户面。
可选地，所述处理模块可以具体用于：获取所述终端的业务信息，和根据所述至少一个用户面网元的信息和所述业务信息，从所述至少一个用户面网元中为所述终端确定目标用户面网元。
可选地，所述第二消息还可以携带所述终端的业务信息。此时，所述处理模块可以具体用于从所述第二消息中获取所述终端的业务信息。
可选地，所述第二消息可以为用户面路径选择请求消息或用户面路径重选择请求消息。
应理解，图10所示本申请实施例的控制面网元中的各个单元的上述和其它操作和/或功能分别为了实现图3中的通信方法的相应流程，为了简洁，在此不再赘述。
图11是本申请另一个实施例的控制面网元1100的示意性结构图。应理解，图11示出的控制面网元仅是示例，本申请实施例的控制面网元还可包括其他模块或单元，或者包括与图11中的各个模块的功能相似的模块，或者并非要包括图11中的所有模块。
接收模块1110，用于接收第一消息，所述第一消息携带终端的业务信息。
处理模块1120，用于从所述第一消息中获取所述终端的业务信息。
所述处理模块1120还用于根据所述终端的业务信息为所述终端确定目标用户面网元。
本申请实施例中，控制面网元根据所述终端的业务信息确定目标用户面网元的信息，因此可以为所述终端确定更优的用户面网元，从而可以提高为所述终端服务的效率，进而可以提高用户的业务体验。
可选地，所述第一消息可以为用户面路径选择请求消息或用户面路径重选择请求消息。
可选地，所述接收模块可以具体用于接收当前为所述终端服务的应用设备或域名系统设备发送的所述第一消息。
应理解，图11所示本申请实施例的控制面网元中的各个单元的上述和其它操作和/或功能分别为了实现图6中的通信方法的相应流程，为了简洁，在此不再赘述。
图12是本申请另一个实施例的网络开放功能网元1200的示意性结构图。应理解，图12示出的网络开放功能网元仅是示例，本申请实施例的网络开放功能网元还可包括其他模块或单元，或者包括与图12中的各个模块的功能相似的模块，或者并非要包括图12中的所有模块。
接收器1210可以用于执行图9中的接收模块910所能执行的步骤或操作，处理器1220可以用于执行图9中的处理模块920所能执行的步骤或操作，发送器1230可以用于执行图9中的发送模块930所能执行的步骤或操作。为了简洁，在此不再赘述。
图13是本申请另一个实施例的控制面网元1300的示意性结构图。应理解，图13示出的控制面网元仅是示例，本申请实施例的控制面网元还可包括其他模块或单元，或者包括与图13中的各个模块的功能相似的模块，或者并非要包括图13中的所有模块。
接收器1310可以用于执行图10中的接收模块1010所能执行的步骤或操作，处理器1320可以用于执行图10中的处理模块1020所能执行的步骤或操作。为了简洁，在此不再赘述。
可选地，控制面网元1300还可以包括发送器1330。发送器1330可以用于发送向其他设备或网元发送消息。
图14是本申请另一个实施例的控制面网元1400的示意性结构图。应理解，图14示出的控制面网元仅是示例，本申请实施例的控制面网元还可包括其他模块或单元，或者包括与图14中的各个模块的功能相似的模块，或者并非要包括图14中的所有模块。
接收器1410可以用于执行图11中的接收模块1110所能执行的步骤或操作，处理器1420可以用于执行图11中的处理模块1120所能执行的步骤或操作。为了简洁，在此不再赘述。
可选地，控制面网元1400还可以包括发送器1430。发送器1430可以用于发送向其他设备或网元发送消息。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元 及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，设备，或者通信设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    网络开放功能网元接收第一消息，所述第一消息携带终端的相关信息，所述终端的相关信息包括所述终端的目标应用设备信息和/或业务信息；
    所述网络开放功能网元根据所述终端的相关信息，确定至少一个用户面网元的信息；
    所述能力开放平台网元向控制面网元发送第二消息，所述第二消息携带所述至少一个用户面网元的信息。
  2. 根据权利要求1所述的通信方法，其特征在于，所述网络开放功能网元根据所述终端的相关信息，确定至少一个用户面网元的信息，包括：
    所述网络开放功能网元根据所述终端的相关信息，确定所述终端的目标网络开放功能网元；
    所述网络开放功能网元向所述目标网络开放功能网元发送所述相关信息；
    所述网络开放功能网元接收所述目标网络开放功能网元根据所述相关信息，发送的所述至少一个用户面网元的信息。
  3. 根据权利要求2所述的通信方法，其特征在于，所述相关信息包括所述目标应用设备信息和所述业务信息；
    其中，所述网络开放功能网元根据所述终端的相关信息，确定所述终端的目标网络开放功能网元，包括：
    所述网络开放功能网元根据所述目标应用设备信息，确定所述终端所述目标网络开放功能网元；
    所述网络开放功能网元向所述目标网络开放功能网元发送所述相关信息，包括：
    所述网络开放功能网元向所述目标网络开放功能网元发送所述目标应用设备信息和所述业务信息。
  4. 根据权利要求2所述的通信方法，其特征在于，所述相关信息包括所述业务信息；
    其中，所述网络开放功能网元根据所述相关信息，确定所述终端所述目标网络开放功能网元，包括：
    所述网络开放功能网元根据所述业务信息，确定所述终端的目标应用设备信息；
    所述网络开放功能网元根据所述目标应用设备信息确定所述终端所述目标网络开放功能网元。
  5. 根据权利要求3或4所述的通信方法，其特征在于，所述业务信息包括一下至少一种信息：业务对应的应用标识、业务的类型，业务的行为。
  6. 根据权利要求1至5中任一项所述的通信方法，其特征在于，所述第一消息还携带所述终端的标识；
    其中，所述能力开放平台网元向控制面网元发送第二消息之前还包括：
    所述网络开放功能网元根据所述终端的标识，确定所述控制面网元。
  7. 根据权利要求1至6中任一项所述的通信方法，其特征在于，所述相关信息包括所述目标应用设备信息；
    其中，所述网络开放功能网元根据所述终端的相关信息，确定至少一个用户面网元的信息包括：
    所述网络开放功能网元根据终端的位置信息和所述目标应用设备信息确定第二目标 应用设备信息，所述第二应用设备信息对应的应用设备包括所述目标应用设备信息对应的全部或部分应用设备。
  8. 根据权利要求1至7中任一项所述的通信方法，其特征在于，所述网络开放功能网元接收第一消息，包括：
    所述网络开放功能网元接收当前为所述终端服务的应用设备或域名系统设备发送的第一消息。
  9. 根据权利要求1所述的通信方法，其特征在于，所述网络开放功能网元接收第一消息，包括：
    所述网络开放功能网元接收其他网络开放功能网元转发的所述第一消息。
  10. 一种通信方法，其特征在于，包括：
    控制面网元接收网络开放功能网元发送的第二消息，所述第二消息用于请求为终端确定用户面网元，所述第二消息携带至少一个用户面网元的信息；
    所述控制面网元根据所述至少一个用户面网元的信息，为所述终端确定目标用户面网元。
  11. 根据权利要求10所述的通信方法，其特征在于，所述通信方法还包括：
    所述控制面网元获取所述终端的业务信息；
    其中，所述控制面网元根据所述至少一个用户面网元的信息，为所述终端确定目标用户面网元，包括：
    所述控制面网元根据所述至少一个用户面网元的信息和所述业务信息，从所述至少一个用户面网元中为所述终端确定目标用户面网元。
  12. 根据权利要求10或11所述的通信方法，其特征在于，所述第二消息为用户面路径选择请求消息或用户面路径重选择请求消息。
  13. 一种通信方法，其特征在于，包括：
    控制面网元接收第一消息，所述第一消息携带终端的业务信息或目标应用设备信息；
    所述终端所述控制面网元根据所述第一消息为所述终端选择确定目标用户面网元。
  14. 根据权利要求13所述的通信方法，其特征在于，所述第一消息携带所述目标应用设备信息，所述目标应用设备信息为网络开放功能网元根据第一应用设备信息确定的，所述目标应用设备信息对应的应用设备包括所述第一应用设备信息对应的全部或部分应用设备。
  15. 根据权利要求13或14所述的通信方法，其特征在于，所述控制面网元接收第一消息，包括：
    所述控制面网元接收当前为所述终端服务的应用设备或域名系统设备发送的所述第一消息。
  16. 一种网络开放功能网元，其特征在于，包括：
    接收模块，用于接收第一消息，所述第一消息携带终端的相关信息，所述终端的相关信息包括所述终端的目标应用设备信息和/或业务信息；
    处理模块，用于根据所述终端的相关信息，确定至少一个用户面网元的信息；
    发送模块，用于向控制面网元发送第二消息，所述第二消息携带所述至少一个用户面网元的信息。
  17. 根据权利要求16所述的网络开放功能网元，其特征在于，所述处理模块具体用 于根据所述相关信息，确定所述终端的目标网络开放功能网元；
    所述发送模块还用于向所述目标网络开放功能网元发送所述相关信息；
    所述接收模块还用于接收所述目标网络开放功能网元根据所述相关信息，发送的所述至少一个用户面网元的信息。
  18. 根据权利要求17所述的网络开放功能网元，其特征在于，所述相关信息包括所述目标应用设备信息和所述业务信息；
    所述处理模块具体用于根据所述目标应用设备信息，确定所述终端所述目标网络开放功能网元；
    所述发送模块具体用于向所述目标网络开放功能网元发送所述目标应用设备信息和所述业务信息。
  19. 根据权利要求17所述的网络开放功能网元，其特征在于，所述相关信息包括所述业务信息；
    所述处理模块具体用于：根据所述业务信息确定所述终端的目标应用设备信息，和根据所述目标应用设备信息确定所述终端所述目标网络开放功能网元。
  20. 根据权利要求18或19所述的网络开放功能网元，其特征在于，所述业务信息包括一下至少一种信息：业务对应的应用标识、业务的类型，业务的行为。
  21. 根据权利要求16至20中任一项所述的网络开放功能网元，其特征在于，所述第一消息还携带所述终端的标识；
    所述处理模块还用于根据所述终端的标识，确定所述控制面网元。
  22. 根据权利要求16至21中任一项所述的网络开放功能网元，其特征在于，所述相关信息包括所述目标应用设备信息；
    其中，所述处理模块具体用于根据终端的位置信息和所述目标应用设备信息确定第二目标应用设备信息，所述第二应用设备信息对应的应用设备包括所述目标应用设备信息对应的全部或部分应用设备。
  23. 根据权利要求16至22中任一项所述的网络开放功能网元，其特征在于，所述接收模块具体用于接收当前为所述终端服务的应用设备或域名系统设备发送的第一消息。
  24. 根据权利要求16所述的网络开放功能网元，其特征在于，所述接收模块具体用于接收其他网络开放功能网元转发的所述第一消息。
  25. 一种控制面网元，其特征在于，包括：
    接收模块，用于接收网络开放功能网元发送的第二消息，所述第二消息用于请求为终端确定用户面网元，所述第二消息携带至少一个用户面网元的信息；
    处理模块，用于根据所述至少一个用户面网元的信息，为所述终端确定目标用户面网元。
  26. 根据权利要求25所述的控制面网元，其特征在于，所述处理模块具体用于：确定所述终端的业务信息，和根据所述至少一个用户面网元的信息和所述业务信息，从所述至少一个用户面网元中为所述终端确定目标用户面网元。
  27. 根据权利要求25或26所述的控制面网元，其特征在于，所述第二消息为用户面路径选择请求消息或用户面路径重选择请求消息。
  28. 一种控制面网元，其特征在于，包括：
    接收模块，用于接收第一消息，所述第一消息携带所述终端的业务信息或目标应用设备信息；
    处理模块，用于根据所述第一消息为所述终端确定目标用户面网元。
  29. 根据权利要求28所述的控制面网元，其特征在于，所述第一消息携带所述目标应用设备信息，所述目标应用设备信息为网络开放功能网元根据第一应用设备信息确定的，所述目标应用设备信息对应的应用设备包括所述第一应用设备信息对应的全部或部分应用设备。
  30. 根据权利要求28或29所述的控制面网元，其特征在于，所述接收模块具体用于接收当前为所述终端服务的应用设备或域名系统设备发送的所述第一消息。
PCT/CN2017/077585 2017-01-10 2017-03-21 通信方法、网络开放功能网元和控制面网元 WO2018129807A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11533594B2 (en) 2017-12-15 2022-12-20 Sony Corporation Enhanced NEF function, MEC and 5G integration
WO2023207525A1 (zh) * 2022-04-27 2023-11-02 华为技术有限公司 一种通信方法及装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020238411A1 (en) * 2019-05-27 2020-12-03 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for network exposure function discovery and selection
KR20230058723A (ko) * 2020-09-30 2023-05-03 텔레폰악티에볼라겟엘엠에릭슨(펍) 애플리케이션 프로그래밍 인터페이스 관리를 위한 방법 및 장치
CN117042034A (zh) * 2022-04-29 2023-11-10 华为技术有限公司 一种通信方法以及通信装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457938A (zh) * 2010-10-18 2012-05-16 中兴通讯股份有限公司 终端接入限制的方法及系统
CN105828315A (zh) * 2016-03-11 2016-08-03 北京北方烽火科技有限公司 服务网关选择方法及系统
WO2016161242A1 (en) * 2015-04-02 2016-10-06 Convida Wireless, Llc Managing mbms membership at the service capability exposure function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008082352A1 (en) * 2006-12-29 2008-07-10 Telefonaktiebolaget Lm Ericsson (Publ) Automatic distribution of server and gateway information for pool configuration

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457938A (zh) * 2010-10-18 2012-05-16 中兴通讯股份有限公司 终端接入限制的方法及系统
WO2016161242A1 (en) * 2015-04-02 2016-10-06 Convida Wireless, Llc Managing mbms membership at the service capability exposure function
CN105828315A (zh) * 2016-03-11 2016-08-03 北京北方烽火科技有限公司 服务网关选择方法及系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11533594B2 (en) 2017-12-15 2022-12-20 Sony Corporation Enhanced NEF function, MEC and 5G integration
WO2023207525A1 (zh) * 2022-04-27 2023-11-02 华为技术有限公司 一种通信方法及装置

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