WO2023151491A1 - 请求应用功能的方法、装置和系统 - Google Patents

请求应用功能的方法、装置和系统 Download PDF

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Publication number
WO2023151491A1
WO2023151491A1 PCT/CN2023/074062 CN2023074062W WO2023151491A1 WO 2023151491 A1 WO2023151491 A1 WO 2023151491A1 CN 2023074062 W CN2023074062 W CN 2023074062W WO 2023151491 A1 WO2023151491 A1 WO 2023151491A1
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WIPO (PCT)
Prior art keywords
application
client
information
routing
eas
Prior art date
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PCT/CN2023/074062
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English (en)
French (fr)
Inventor
胡雅婕
杨艳梅
李永翠
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华为技术有限公司
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Publication of WO2023151491A1 publication Critical patent/WO2023151491A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present application relates to the communication field, and more specifically, to a method, device and system for requesting application functions.
  • the independent networking (standalone, SA) 6 standard defines the discovery process of the edge enabler server (EES) platform and the edge application server (edge application server, EAS). For the EAS determined through the EAS discovery process, the edge data network will trigger the execution of traffic influence for the request to the core network. The timing of executing EAS discovery and/or execution of routing influence is worth considering.
  • the present application provides a method, device and system for requesting application functions, which can be used to determine the timing of triggering the execution of application server discovery and/or execution of routing effects, which is conducive to reducing the waste of network resources and improving the experience of terminal device users.
  • a method for requesting application functions including:
  • the enabling server determines whether to perform routing influence in advance according to the first determination information.
  • user plane path optimization can be completed before data interaction with the application server, which helps reduce the latency for application clients to obtain application services , which is conducive to improving the application service experience of terminal device users; when it is determined not to perform routing in advance, it is beneficial to reduce the optimization of user plane paths for application clients that do not require high latency or do not need edge computing services in advance, which is beneficial It is beneficial to reduce the waste of network resources by reducing the situation that the user plane functional network elements included in the optimized user plane are occupied for a period of time (for example, the period of time before the completion of routing affects the data interaction between the application client and the application server).
  • the enabling server when it is determined to pre-execute the routing influence, the enabling server sends an application function request message in advance, where the application function request message is used to request to execute the routing influence for one or more application servers.
  • the enabling server can obtain a definite judgment result.
  • the enabling server can provide application services for as many terminal devices as possible by obtaining the definite judgment result, which is beneficial to Make full use of the network resources of the edge data network.
  • the latency for application clients to obtain application services can be reduced, which is conducive to improving the user experience of terminal equipment users.
  • the enabling server when it is determined that routing impact is not to be performed in advance, does not send in advance An application function request message, where the application function request message is used to request to perform routing influence for one or more application servers.
  • the enabling server can obtain a negative judgment result. For an edge data network with insufficient network resources or relatively tight network resources, the enabling server can obtain a negative judgment result to minimize the need for edge computing services temporarily.
  • the terminal device optimizes the user plane path, which helps to reduce the number of empty user plane functional network elements included in the optimized user plane for a period of time (for example, the period of time before the completion of routing affects the data interaction between the application client and the application server) This is conducive to reserving network resources or edge data network resources, ensuring the application service quality of connected terminal devices, and improving the stability of application services provided by edge data networks.
  • the enabling server saves the judgment result of not pre-executing the routing impact.
  • the enabling server can determine whether the enabling client will pre-execute the routing impact based on the judgment result of not pre-executing the routing impact. It is not necessary to determine whether to pre-execute the routing impact based on the application information, which is conducive to improving the ability of the enabling server to judge whether to pre-execute Routing affects efficiency.
  • the enabling server when it is determined that the routing influence is not to be performed in advance, the enabling server sends a determination result of not performing the routing influence in advance to the enabling client.
  • the judgment result of not pre-executing the routing impact may also be referred to as indication information of not pre-executing the routing impact.
  • the client is enabled to save the judgment result of not performing routing impact in advance.
  • the enabling client may determine whether to pre-execute application server discovery and/or route impact next time on the application client according to the judgment result of not pre-executing route impact.
  • the enabling server further sends information of one or more application servers to the enabling client, and the enabling client determines the selected application server according to the information of the one or more application servers.
  • the enabling server determines the selected application server according to one or more application servers, and the enabling client sends the information of the one or more application servers or the information of the selected application server to the application client.
  • the application client may determine the selected application server according to the information of one or more application servers, so as to request the selected application server to trigger the execution of routing influence.
  • the enabling client sends the information of the selected application server to the enabling server.
  • the enabling server can determine whether to trigger the routing impact in advance, providing multiple judgment basis for the enabling server to determine whether to execute the routing impact in advance, which is beneficial to improve the edge data network for different Provide services for terminal devices or application clients, which is conducive to improving the stability of terminal devices in obtaining edge data network application services.
  • the application client sends indication information of triggering execution of routing influence to the selected application server, where the indication information is used to request the selected application server to trigger execution of routing influence for the selected application server.
  • the application client can directly request the selected application server to trigger the execution of routing effects, which is beneficial to improve the efficiency of the application client to obtain the application service provided by the application server.
  • the application client sends indication information for pre-triggering application server discovery and/or pre-executing routing impact to the enabling client according to the judgment result of not pre-executing routing impact.
  • the enabling client sends indication information of pre-executing application server discovery and/or pre-executing route impact to the enabling server.
  • This technical solution determines the timing of triggering the execution of routing impact through the first judgment information.
  • routing impact is pre-executed, it is beneficial to reduce the delay for application clients with high delay requirements to obtain application services; when it is determined not to pre-execute routing impact , which is beneficial to reduce the situation that the optimized user plane does not actually provide services for terminal devices within a period of time (for example, before the completion of routing affects the data interaction between the application client and the application server), which is conducive to reducing the waste of network resources. It is beneficial to improve the application service experience of the terminal device user.
  • the first determination information includes application information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the application type, application server type, or delay requirements can represent the inherent attributes of the application client. According to the inherent attributes of the application client, it is judged whether to perform routing in advance, which is conducive to improving the adaptability of the enabling server to provide services for different terminal devices.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicators include one or more of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources or storage resources.
  • the enabling server can determine the type of enabling service based on some basic information of the application server, and then determine whether to pre-execute routing influence, which is conducive to simplifying the process of enabling the server to determine whether to pre-execute routing influence
  • the judging process and message content are conducive to improving the efficiency of enabling the server to determine whether to execute routing effects in advance.
  • the first decision information includes indication information, where the indication information is used to indicate that application server discovery and/or route influence are pre-executed.
  • the enabling server obtains the indication information and determines whether to execute routing impact in advance according to the indication information, so as to determine whether to send a request message to perform routing impact for the application server, and the enabling server can make corresponding responses based on the actual running status and actual needs of the application client For different indication information, the enabling server can make a corresponding response, so that the application server can better provide application services for the application client.
  • the delay requirement is the delay requirement of the first packet
  • the delay requirement of the first packet refers to the delay of the first data packet sent by the application client to one or more application servers need.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific time period during the data interaction process between the application client and the application server.
  • the delay requirement is also used to represent the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the enabling server may also determine whether to pre-execute routing influence according to one or more of the following information:
  • the enabling server can determine whether to perform routing impact in advance according to the information content reported by the enabling client or the reported event, which provides more judgment methods for the enabling server, which is conducive to improving the ability of the enabling server to serve different terminal devices or in different Applicability in operating scenarios.
  • the enabling server sends a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for the one or more application servers.
  • the enabling server feeds back the selected application server and the result of implementing routing influence for the application server to the enabling client.
  • the enabling client can filter the application server according to the feedback information. For the application server that has implemented routing influencing, it can Feedback is given priority to the application client, which is used for the application client to connect to obtain application services.
  • the discovery response message is also used to indicate whether the one or more application servers complete routing influence.
  • the discovery response message is also used to indicate whether one or more application servers have an optimized user plane path or whether the user plane path has been optimized.
  • the application client can directly connect to the application server that has completed the routing influence, which is beneficial to improve the efficiency of the application client to obtain the application service of the application server.
  • the enabling server pre-sends a first indication message to the selected application server, where the first indication message is used to indicate pre-triggering execution of routing effects, and the one or more application servers including the selected application server.
  • the first indication message is used to instruct the selected application server to pre-trigger execution of routing influence for the selected application server.
  • the enabling server can directly request the selected application server to trigger the execution of routing influence, without requesting the core network to perform routing influence for one or more application servers, which is conducive to improving the efficiency of core network execution routing influence and improving the terminal equipment to obtain application services s efficiency.
  • the first indication message further includes application information and/or indication information
  • the selected application server may determine whether to pre-execute routing influence according to the application information and/or indication information.
  • Whether the application server determines whether to implement the routing influence is conducive to improving the mechanism of the edge data network triggering the execution of the routing influence, and is conducive to improving the efficiency of the edge data network to improve the application service for the terminal device.
  • a method for requesting application functions including:
  • the enabling server determines whether to perform routing influence in advance according to the first determination information.
  • user plane path optimization can be completed before data interaction with the application server, which helps reduce the latency for application clients to obtain application services , which is conducive to improving the application service experience of terminal device users; when it is determined that the impact of routing is not performed in advance, it is beneficial to reduce the immediate optimization of user plane paths for application clients that do not require high latency or temporarily do not need edge computing services, thereby benefiting It is beneficial to reduce the waste of network resources by reducing the situation that the user plane functional network elements included in the optimized user plane are occupied for a period of time (for example, the period of time before the completion of routing affects the data interaction between the application client and the application server).
  • the enabling server when it is determined to pre-execute the routing influence, sends an indication message of triggering the execution of the routing impact to the selected application server in advance, where the indication message is used to indicate the pre-triggering execution of the routing impact.
  • the indication message is used to instruct the selected application server to pre-trigger execution of routing influence for the selected application server.
  • the enabling server can obtain a definite judgment result.
  • the enabling server can provide application services for as many terminal devices as possible by obtaining the definite judgment result, which is beneficial to Make full use of the network resources of the edge data network.
  • the latency for application clients to obtain application services can be reduced, which is conducive to improving the application service experience of terminal device users.
  • the enabling server when it is determined not to pre-execute the routing impact, does not send an indication message for triggering the execution of the routing impact in advance, where the indication message is used to indicate that the pre-triggering execution of the routing impact is used.
  • the indication message is used to instruct the selected application server to pre-trigger execution of routing influence for the selected application server.
  • the enabling server can obtain a negative judgment result. For an edge data network with insufficient network resources or relatively tight network resources, the enabling server can obtain a negative judgment result to minimize the need for edge computing services temporarily.
  • the terminal device optimizes the user plane path, which helps to reduce the number of empty user plane functional network elements included in the optimized user plane for a period of time (for example, the period of time before the completion of routing affects the data interaction between the application client and the application server) This is conducive to reserving network resources or edge data network resources, ensuring the application service quality of connected terminal devices, and improving the stability of application services provided by edge data networks.
  • the enabling server saves the judgment result of not pre-executing the routing impact.
  • the enabling server can determine whether the enabling client will pre-execute the routing impact based on the judgment result of not pre-executing the routing impact. It is not necessary to determine whether to pre-execute the routing impact based on the application information, which is conducive to improving the ability of the enabling server to judge whether to pre-execute Routing affects efficiency.
  • the enabling server when it is determined that the routing influence is not to be performed in advance, the enabling server sends a determination result of not performing the routing influence in advance to the enabling client.
  • the judgment result of not pre-executing the routing impact may also be referred to as indication information of not pre-executing the routing impact.
  • the client is enabled to save the judgment result of not performing routing impact in advance.
  • the enabling client can determine whether the application client will perform application server discovery and/or route influencing in advance according to the judgment result of not pre-executing the routing influence, which is beneficial to improve the efficiency of the enabling client's judgment.
  • the enabling client sends the judgment result of not performing routing impact in advance to the application client.
  • the application client can determine that the last request failed according to the received judgment result of the impact of not pre-executing the route, thereby changing the request method or changing the request path, which is conducive to improving the efficiency of the application client to obtain application services.
  • the enabling server also sends the information of the selected application server to the enabling client.
  • the enabling client sends the information of the selected application server to the application client.
  • the application client sends indication information of triggering execution of routing influence to the selected application server, where the indication information is used to request the selected application server to trigger execution of routing influence for the selected application server.
  • the application client After the application client obtains the information of the selected application server, it can directly request the selected application server to implement the routing influence, which is beneficial to simplify the process of triggering the implementation of the routing influence and improve the efficiency of the application client to obtain the application service.
  • the application client sends indication information to the enabling client to pre-trigger execution of application server discovery and/or pre-execution of routing impact according to the judgment result of not pre-executing routing impact.
  • the enabling client sends indication information of pre-executing application server discovery and/or pre-executing route impact to the enabling server.
  • the application client After obtaining the judgment result of not pre-executing the routing impact, the application client sends the instruction information directly to the enabled client, and the enabled client sends the instruction information to the enabled server.
  • the routing impact is triggered in advance through the instruction information, which is beneficial to improve The success rate of triggering execution routing influences for application clients.
  • This technical solution determines the timing of triggering the execution of routing impact through the first judgment information.
  • routing impact is pre-executed, it is beneficial to reduce the delay for application clients with high delay requirements to obtain application services; when it is determined not to pre-execute routing impact , which helps to reduce the situation that the user plane functional network elements included in the optimized user plane are empty for a period of time, helps to reduce the waste of network resources, and helps to improve the application service experience of terminal device users.
  • the first determination information includes application information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the application type, application server type, or delay requirements can represent the inherent attributes of the application client. According to the inherent attributes of the application client, it is judged whether to perform routing in advance, which is conducive to improving the adaptability of the enabling server to provide services for different terminal devices.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicators include one or more of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources or storage resources.
  • the enabling server can determine the type of enabling service based on some basic information of the application server, and then determine whether to pre-execute routing influence, which is conducive to simplifying the process of enabling the server to determine whether to pre-execute routing influence
  • the judging process and message content are conducive to improving the efficiency of enabling the server to determine whether to execute routing effects in advance.
  • the first determination information includes indication information, and the indication information is used to indicate that the application server discovery and/or the routing impact are pre-executed.
  • the enabling server obtains the indication information and determines whether to execute routing impact in advance according to the indication information, so as to determine whether to send a request message to perform routing impact for the application server, and the enabling server can make corresponding responses based on the actual running status and actual needs of the application client For different indication information, the enabling server can make a corresponding response, so that the application server can better provide application services for the application client.
  • the delay requirement is the delay requirement of the first packet
  • the delay requirement of the first packet refers to the delay of the first data packet sent by the application client to one or more application servers need.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific time period during the data interaction process between the application client and the application server.
  • the delay requirement is also used to represent the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the enabling server may also determine whether to Pre-execute routing impacts:
  • the enabling server can determine whether to perform routing impact in advance according to the information content reported by the enabling client or the reported event, which provides more judgment methods for the enabling server, which is conducive to improving the ability of the enabling server to serve different terminal devices or in different Applicability in operating scenarios.
  • the enabling server sends a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for the one or more application servers.
  • the enabling server feeds back the selected application server and the result of routing influence for the application server to the enabling client, and the enabling client can filter the application server according to the feedback information.
  • the application server of the user plane path can give priority to feedback to the application client for the application client to connect to obtain application services.
  • the discovery response message is also used to indicate whether the one or more application servers complete routing influence.
  • the discovery response message is also used to indicate whether one or more application servers have an optimized user plane path or whether the user plane path has been optimized.
  • the application client can directly connect to the application server that has completed the routing influence, which is beneficial to improve the efficiency of the application client to obtain the application service of the application server.
  • a method for requesting application functions including:
  • the enabling client determines whether to perform application server discovery in advance according to the second determination information.
  • the enabling client first judges whether to execute the application server discovery before triggering the execution of the application server discovery, which is helpful for the enabling client to determine the timing of triggering the execution of the application server discovery according to different situations.
  • application servers can be discovered in advance, so that before the application client has data interaction with the application server, routing influence can be performed for the discovered application server , so as to help reduce the time delay for the application client to obtain the application service, and help improve the application service experience of the terminal device user.
  • the edge data network When it is determined not to perform application server discovery in advance, the edge data network will not perform application server discovery for the application client before the application client has data interaction with the application server, and will not trigger execution for the application client during this period routing, which is beneficial to improve the effectiveness of signaling interaction between the enabled client and the edge data network, and to a certain extent, also helps to reduce the number of user plane functional network elements included in the optimized user plane that are empty for a period of time It helps to reduce the waste of network resources.
  • the enabling client when it is determined to perform application server discovery in advance, sends an application server discovery request message in advance, and the application server discovery request message is used to request discovery of one or more application servers.
  • Multiple application servers are used to provide application services for application clients.
  • the enabling client can obtain a definite judgment result, and the enabling client can provide services for as many application clients as possible by obtaining the definite judgment result, which is conducive to making full use of the edge data network network resource.
  • application server discovery is performed for them in advance, which is beneficial for the application client to further request for the discovered application server to perform routing in advance, thereby reducing the application client's access to application services
  • the delay is conducive to improving the application service experience of terminal device users.
  • the enabling client when it is determined not to perform application server discovery in advance, does not An application server discovery request message is first sent, where the application server discovery request message is used to request discovery of one or more application servers, and the one or more application servers are used to provide application services for the application client.
  • the enabling client can obtain a negative judgment result, and the enabling client can minimize access to the edge data network for new application clients by obtaining a negative judgment result, which is conducive to ensuring the The application service quality acquired by the application client is beneficial to reduce the power consumption of the terminal device.
  • the edge data network will not perform routing influence for the application client before the application client has data interaction with the application server, which is beneficial to improve the communication between the client and the edge data network.
  • the effectiveness of signaling interaction is also conducive to reducing the user plane function network elements included in the optimized user plane for a period of time (for example, the completion of routing affects the period before the data interaction between the application client and the application server) In the case of being empty, it is beneficial to reduce the waste of network resources or edge data network resources.
  • the enabling client saves a judgment result of not performing application server discovery in advance.
  • the enabling client can determine whether to pre-execute application server discovery next time for the application client according to the judgment result of not performing application server discovery in advance, which is beneficial to improve the efficiency of enabling the client to determine whether to pre-execute application server discovery.
  • the client is enabled to send the judgment result of not performing application server discovery in advance to the application client.
  • the application client sends an indication of pre-execution of application server discovery and/or an indication of pre-execution of route impact to the enabled client according to the judgment result of not performing application server discovery in advance.
  • the application client can re-prepare the next request to the enabled client.
  • the request message includes an instruction message to pre-execute application server discovery, etc., which is conducive to improving the application client. Triggers the efficiency of performing application server discovery.
  • the client is enabled to determine whether to pre-execute routing influence according to the second determination information.
  • pre-execute routing Perform application server discovery.
  • Pre-execution of application server discovery is determined by determining the pre-execution routing influence, so that the application server determined through the application server discovery process can execute the routing influence, which is conducive to improving the efficiency of the application client to determine the application server with an optimized user plane path, and is conducive to improving The efficiency with which application clients acquire application services.
  • the implementation of this technical solution is conducive to improving the trigger mechanism for enabling the client to trigger the execution of the application server discovery, so that the enabling client can trigger the execution of the application server discovery after judging that the conditions are met, which is conducive to enabling the client to be of different types, different
  • the running application client provides services, which is conducive to improving the service efficiency and service quality of the enabled client.
  • This technical solution determines the timing of executing application server discovery through the second judgment information.
  • it is beneficial to reduce the delay for application clients with high delay requirements to obtain application services; when it is determined not to execute application server in advance
  • the server found that it is beneficial to improve the effectiveness of enabling the communication signaling interaction between the client and the edge data network. waste.
  • the second determination information includes application information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the application type, application server type, or delay requirements can represent the inherent attributes of the application client. Using the inherent attributes of the client to determine whether to perform application server discovery in advance is beneficial to improving the adaptability of the enabling server to provide services for different terminal devices.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicators include one or more of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources or storage resources.
  • the enabling server can determine the type of enabling service based on some basic information of the application server, and then determine whether to pre-execute routing influence, which is conducive to simplifying the process of enabling the server to determine whether to pre-execute routing influence
  • the judging process and message content are beneficial to improving the efficiency of enabling the server to determine whether to perform application server discovery in advance.
  • the implementation of this technical solution is conducive to enabling the client to make judgments based on the attributes of the application client and make corresponding responses, to improve the adaptability of providing services for different types of clients, and to improve the overall performance of the enabled client.
  • the service efficiency is conducive to improving the application service experience of terminal device users, and is also conducive to improving the service quality of edge data networks.
  • the second determination information includes indication information, where the indication information is used to indicate that the application server discovery and/or the route influence are pre-executed.
  • the instruction information can reflect the relevant requirements of the application client for its operating environment, and enable the client to determine whether to pre-execute routing influence for the application client based on the instruction information by obtaining the instruction information, so as to determine whether to send the application server discovery request in advance message, which triggers application server discovery.
  • the enabling client can make corresponding responses based on the actual running status and actual needs of the application client, and the enabling client can make corresponding responses to different indication information, so that the enabling client can better serve The application client provides the service.
  • the implementation of this technical solution is conducive to improving the trigger mechanism for enabling the client to trigger the execution of application server discovery, enabling the enabling client to provide services for application clients with different operating states or operating requirements, and improving the user experience of terminal equipment.
  • the application service experience is also conducive to improving the service quality of the edge data network to a certain extent.
  • the delay requirement is the delay requirement of the first packet
  • the delay requirement of the first packet refers to the delay of the first data packet sent by the application client to one or more application servers need.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific time period during the data interaction process between the application client and the application server.
  • the enabling client receives the discovery response message sent by the enabling server, where the discovery response message is used to indicate that routing influence has been performed for one or more application servers;
  • the enabling client sends a first response message to the application client, where the first response message includes information about one or more application servers, and the first response message is also used to indicate that routing influence has been performed for one or more application servers.
  • the enabling client can filter from one or more application servers according to the received discovery response message, and the application server that has implemented routing influence can be given priority to feedback to the application client for the application client to connect and obtain application services.
  • the discovery response message is also used to indicate whether one or more application servers have completed route influence, or whether one or more application servers have optimized user plane paths or whether user plane path optimization has been completed.
  • the first response message is also used to indicate whether one or more application servers complete route influence, or whether one or more application servers have optimized user plane paths or whether user plane path optimization is completed.
  • the application client can directly connect to the application server that has completed the routing influence, which is beneficial to improve the efficiency of the application client to obtain the application service of the application server.
  • the enabling client After the enabling client obtains the application server information and the indication information of whether the application server completes the routing effect, it can further send it to the application client.
  • the application client can determine which application server to obtain the application service according to the indication information.
  • the implementation of this technical solution is conducive to improving the service efficiency of the enabling client and the enabling server, is conducive to improving the application service experience of the terminal device user, and is conducive to reducing redundant interaction between the enabling client and the enabling server.
  • the signaling waste is also beneficial to reduce unnecessary user plane path optimization and reduce the waste of network resources.
  • a method for requesting application functions including:
  • the enabling client first judges whether to pre-execute the routing influence before triggering the execution of the routing influence, which is beneficial for the enabling client to determine the timing of triggering the execution of the routing influence according to different situations.
  • the enabling client can pre-trigger the execution of application server discovery accordingly.
  • the enabling client can correspondingly not trigger the application server discovery in advance, which is beneficial to reduce the edge data network to pre-execute the application server discovery for the application client that does not need to perform the application server discovery in advance or for the application server that does not need to Pre-execution of route-influenced application clients
  • the pre-execution of route influence is beneficial to improve the effectiveness of signaling interaction between the enabling client and the edge data network.
  • it is also conducive to reducing the optimized user plane.
  • the situation that the user plane functional network element is occupied for a period of time (for example, the period of time before the completion of routing affects the data interaction between the application client and the application server) is beneficial to reduce the waste of network resources.
  • the enabling client when it is determined that pre-execution routing affects, sends an application server discovery request message in advance, and the application server discovery request message is used to request discovery of one or more application servers.
  • An application server is used to provide application services for application clients.
  • the enabling client can obtain a definite judgment result, and the enabling client can provide services for as many application clients as possible by obtaining the definite judgment result, which is conducive to making full use of the edge data network network resource.
  • pre-executing the routing impact for them will help reduce the latency for the application clients to obtain application services, and help improve the application service experience of terminal device users.
  • the enabling client when it is determined that route impact is not performed in advance, the enabling client does not send an application server discovery request message in advance, and the application server discovery request message is used to request discovery of one or more application servers.
  • One or more application servers are used to provide application services for application clients.
  • the enabling client can obtain a negative judgment result, and the enabling client can minimize access to the edge data network for new application clients by obtaining a negative judgment result, which is conducive to ensuring the
  • the application service quality acquired by the application client is beneficial to reduce the power consumption of the terminal device.
  • the enabling client will not pre-trigger the execution of the application server discovery, so the edge data network will not be in the Executing routing influences for the application client before the data interaction between the application client and the application server is conducive to improving the effectiveness of the communication signaling interaction between the enabling client and the edge data network, and to a certain extent is also conducive to reducing the number of optimized users.
  • the situation that the functional network elements of the user plane contained in the plane are occupied for a period of time is beneficial to reduce the waste of network resources.
  • the enabling client determines whether to perform routing influence in advance.
  • the enabling client determines whether to perform routing influence in advance after receiving the information of one or more candidate application servers sent by the enabling server.
  • the client is enabled to determine whether to perform routing influence in advance according to the received selected application server information or the event of receiving the selected application server information.
  • the selected application server may be determined by the application client or the enabling client or the enabling server.
  • the enabling client can not only determine whether to pre-execute routing influence according to the information sent by the application client, but also determine whether to pre-execute routing influence according to the information sent by the enabling server, which is conducive to improving the mechanism for enabling the client to trigger the execution of routing influence. It is beneficial to improve the efficiency of enabling the client to trigger and execute routing effects.
  • the implementation of this technical solution is conducive to improving the trigger mechanism for enabling the client to trigger the execution of the application server discovery, so that the enabling client can trigger the execution of the application server discovery after judging that the conditions are met, which is conducive to enabling the client to be of different types, different
  • the running application client provides services, which is conducive to improving the service efficiency and service quality of the enabled client.
  • the second determination information includes application information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the application type, application server type, or delay requirement can represent the inherent attributes of the application client. According to the inherent attributes of the application client, it is judged whether to perform application server discovery in advance, which is conducive to improving the adaptability of the enabling server to provide services for different terminal devices.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicators include one or more of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources, and storage resources.
  • the enabling server can determine the type of enabling service based on some basic information of the application server, and then determine whether to pre-execute routing influence, which is conducive to simplifying the process of enabling the server to determine whether to pre-execute routing influence
  • the judging process and message content are beneficial to improving the efficiency of enabling the server to determine whether to perform application server discovery in advance.
  • the implementation of this technical solution is conducive to enabling the client to make judgments based on the attributes of the application client and make corresponding responses, to improve the adaptability of providing services for different types of clients, and to improve the overall performance of the enabled client.
  • the service efficiency is conducive to improving the application service experience of terminal device users, and is also conducive to improving the service quality of edge data networks.
  • the second decision information includes indication information, where the indication information is used to indicate that the application server discovery and/or the routing impact are pre-executed.
  • the instruction information can reflect the relevant requirements of the application client for its operating environment, and enable the client to determine whether to pre-execute routing influence for the application client based on the instruction information by obtaining the instruction information, so as to determine whether to send the application server discovery request in advance message, which triggers application server discovery.
  • the enabling client can make corresponding responses based on the actual running status and actual needs of the application client, and for different indication information, the enabling client The end can make a corresponding response, so that the client can better provide services for the application client.
  • the implementation of this technical solution is conducive to improving the trigger mechanism for enabling the client to trigger the execution of application server discovery, enabling the enabling client to provide services for application clients with different operating states or operating requirements, and improving the user experience of terminal equipment.
  • the application service experience is also conducive to improving the service quality of the edge data network to a certain extent.
  • the delay requirement is the delay requirement of the first packet
  • the delay requirement of the first packet refers to the delay of the first data packet sent by the application client to one or more application servers need.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific time period during the data interaction process between the application client and the application server.
  • determining whether to perform routing impact in advance includes determining whether to perform application server discovery in advance.
  • Combining the determination of whether to pre-execute routing impact with the determination of whether to pre-execute application server discovery helps simplify the process of determining an application server with an optimized user plane path for the application client, and improves the efficiency of the application client to obtain application services.
  • the enabling client receives the discovery response message sent by the enabling server, where the discovery response message is used to indicate that routing influence has been performed for one or more application servers.
  • the enabling client sends a first response message to the application client, where the first response message includes information about one or more application servers, and the first response message is also used to indicate that routing influence has been performed for one or more application servers.
  • the enabling client can filter from one or more application servers according to the received discovery response message, and the application server that has implemented routing influence can be given priority to feedback to the application client for the application client to connect and obtain application services.
  • the discovery response message is also used to indicate whether one or more application servers have completed route influence, or whether one or more application servers have optimized user plane paths or whether user plane path optimization has been completed.
  • the first response message is also used to indicate whether one or more application servers complete route influence, or whether one or more application servers have optimized user plane paths or whether user plane path optimization is completed.
  • the application client can directly connect to the application server that has completed the routing influence, which is beneficial to improve the efficiency of the application client to obtain the application service of the application server.
  • the enabling client After the enabling client obtains the application server information and the indication information of whether the application server completes the routing effect, it can further send it to the application client.
  • the application client can determine which application server to obtain the application service according to the indication information.
  • the implementation of this technical solution is conducive to improving the service efficiency of the enabling client and the enabling server, is conducive to improving the application service experience of the terminal device user, and is conducive to reducing redundant interaction between the enabling client and the enabling server.
  • the signaling waste is also beneficial to reduce unnecessary user plane path optimization and reduce the waste of network resources.
  • a method for requesting application functions including:
  • the application client determines whether to pre-execute application server discovery and/or pre-execute routing influence according to the application information.
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the application type, application server type, or delay requirements can represent the inherent attributes of the application client.
  • the application client judges whether to pre-execute the application server discovery and/or pre-execute the routing impact according to its own inherent attributes, that is, to determine the implementation of the application server discovery and/or Or the timing of implementing the routing influence is beneficial to improve the initiative of the application client to obtain the application service.
  • application clients with high latency requirements can request to optimize the user plane path before data interaction with the application server, thereby reducing the latency of obtaining application services.
  • the application client When it is determined not to perform application server discovery and/or route influence in advance, the application client does not need to send a request or instruction information for performing application server discovery and/or route influence in advance, which is conducive to improving the information between the application client and the enabling client. It improves the effectiveness of interaction and helps to reduce the waste of network resources.
  • the application client when it is determined to pre-execute application server discovery and/or pre-execute routing influence, the application client sends a first request message to the enabling client in advance.
  • the application client can obtain a definite judgment result, and the application client can actively request the service provided by the edge data network by obtaining the definite judgment result, which is beneficial to make full use of the network resources of the edge data network.
  • An application client with high latency requirements can request to optimize the user plane path before it has data interaction with the application server, thereby reducing the latency for the application client to obtain application services.
  • the application client when it is determined not to perform application server discovery and/or not to perform route influence in advance, the application client does not send the first request message to the enabling client in advance.
  • the application client can obtain a negative judgment result, and the application client can reduce the probability of obtaining edge data network application services by obtaining a negative judgment result, which is conducive to ensuring the application obtained by the already connected application client. Quality of service, which is conducive to reducing the power consumption of terminal equipment.
  • the application client does not need to send a request or instruction information for performing application server discovery and/or implementing routing impact in advance, which is conducive to improving the effectiveness of signaling interaction between the application client and the enabling client, and is conducive to reducing the waste of network resources. .
  • the application client when the application client determines not to pre-execute application server discovery and/or pre-execute routing influence according to the application information, but the terminal device or application client user specifies to pre-execute application server discovery or pre-execute routing Influence, in response to a user's request or instruction, the application client sends pre-execution application server discovery request indication information and/or pre-execution route impact indication information to the enabling client.
  • the application client when the application client determines that the current application server cannot meet the application requirements according to the application information, the application client sends pre-execution application server discovery request indication information and/or pre-execution application server discovery request information to the enabling client in advance. Routing impact indication information.
  • the application client can request the client to perform corresponding operations by sending pre-execution application server discovery request indication information and/or pre-execution routing impact indication information. , which is conducive to improving the probability that the application client obtains the application service, and is conducive to improving the initiative of the application client to obtain the application service.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicators include one or more of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources, and storage resources.
  • the application client can determine the type of enabled service based on some basic information of the application server, and then determine whether to pre-execute the routing effect, which is conducive to simplifying the application client to determine whether to pre-execute the routing effect
  • the judging process and message content are beneficial to improve the application client to determine whether to execute the application in advance. Efficiency with server discovery.
  • This technical solution determines the timing of performing application server discovery and/or implementing routing impact through application information.
  • it is determined not to perform application server discovery and/or perform routing influence in advance it is beneficial to improve the effectiveness of signaling interaction between the application client and the enabling client.
  • the implementation of this technical solution is also conducive to improving the service quality and service efficiency of the enabled client and the enabled server, and to improving the service experience of the application client, to a certain extent, to reducing signaling waste, and to reducing unnecessary Necessary user plane path optimization helps reduce the waste of network resources.
  • the first request message includes application information and/or indication information, where the indication information is used to indicate pre-execution of application server discovery and/or pre-execution of routing influence.
  • the application client sends application information and/or instruction information to the enabling client, and after receiving the information, the enabling client can make a judgment based on the received message to determine whether to trigger the execution of a corresponding operation.
  • the implementation of this technical solution is conducive to improving the trigger mechanism for enabling the client to trigger the execution of the application server discovery, so that the enabling client can trigger the execution of the application server discovery after judging that the conditions are met, which is conducive to enabling the client to be of different types, different
  • the running application client provides services, which is conducive to improving the service efficiency and service quality of the enabled client.
  • the delay requirement is the delay requirement of the first packet
  • the delay requirement of the first packet refers to the delay of the first data packet sent by the application client to one or more application servers need.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific time period during the data interaction process between the application client and the application server.
  • the application client receives a first response message, where the first response message includes information about one or more application servers, and the first response message is also used to indicate that the The one or more application servers perform routing influence.
  • the application client obtains the information of one or more application servers and the indication information of whether the one or more application servers have completed the routing influence by receiving the first response message. According to the instruction information, the application client can preferentially select the application server that has implemented the routing influence to provide the application service, which is beneficial to speed up the rate at which the application client obtains the application service, and is conducive to improving the service experience of the application client.
  • the first response message is also used to indicate whether one or more application servers have completed route influence, or the first response message is also used to indicate whether one or more application servers have optimized user plane paths or user plane Whether the path is optimized.
  • the application client can directly connect to the application server that has completed the routing influence, which is beneficial to improve the efficiency of the application client to obtain the application service of the application server.
  • the application client when it is determined to pre-execute application server discovery and/or pre-execute routing influence, the application client sends a second indication message to the selected application server in advance, and the second indication The message is used to indicate the pre-trigger execution routing influence, and the one or more application servers include the selected application server.
  • the application client determines whether to perform routing influence in advance according to the application information
  • the application client When it is determined to pre-execute the routing influence, the application client sends a second indication message to the selected application server in advance, where the second indication message is used to request the pre-execution of the routing impact.
  • the application client When it is determined not to pre-execute routing influence, the application client does not send a second indication message to the selected application server in advance, where the second indication message is used to request pre-execution of routing impact.
  • the application client determines the selected application server according to the information of one or more application servers.
  • the application client can determine whether to send a request to trigger routing influence for the feedback application server according to the application information. It is not necessary to feed back the application server selected by the application client to the enabling client and then to the enabling server to trigger the routing effect, which is beneficial to reduce the signaling used interactively between the application client, the enabling client, and the enabling server The waste is conducive to improving the application service experience of terminal device users.
  • a method for requesting application functions including:
  • the application client determines whether to perform routing impact in advance according to the application information, which includes one or more of the following information: application type, application server type, or delay requirements, etc.;
  • the application type, application server type, or delay requirement can all represent the inherent attributes of the application client.
  • the application client judges whether to pre-execute the application server discovery and/or pre-execute the routing influence according to its own inherent attributes, that is, determine the timing of implementing the routing influence. It is beneficial to improve the initiative of the application client to obtain the application service.
  • the application client with high latency requirements can request to optimize the user plane path before it has data interaction with the application server, so as to reduce the latency of obtaining application services.
  • the application client When it is determined not to perform routing impact in advance, the application client does not need to send a request or instruction information to execute routing impact in advance, which is conducive to improving the effectiveness of signaling interaction between the application client and the enabling client, and is conducive to reducing the waste of network resources. .
  • the application client when it is determined to pre-execute the routing influence, the application client sends a second request message to the selected application server in advance, where the second request message is used to request the pre-execution of the routing influence, and the selected
  • the application server is included in one or more application servers, and the one or more application servers are used to provide application services for application clients.
  • the second request message is used to request the selected application server to pre-execute routing influence for the selected application server.
  • the application client can obtain a definite judgment result, and the application client can actively request the service provided by the edge data network by obtaining the definite judgment result, which is beneficial to make full use of the network resources of the edge data network.
  • An application client with high latency requirements can request to optimize the user plane path before it has data interaction with the application server, thereby reducing the latency for the application client to obtain application services.
  • the application client when it is determined that the routing influence is not to be performed in advance, the application client does not send a second request message to the selected application server in advance, and the second request message is used to request that the routing influence be performed in advance.
  • the specified application server is included in one or more application servers, and the one or more application servers are used to provide application services for application clients.
  • the application client can obtain a negative judgment result, and the application client can reduce the probability of obtaining edge data network application services by obtaining a negative judgment result, which is conducive to ensuring that the application clients that have already accessed
  • the QoS of the application obtained by the client is beneficial to reduce the power consumption of the terminal device.
  • the application client does not need to send a request or instruction information for performing application server discovery and/or implementing routing impact in advance, which is conducive to improving the effectiveness of signaling interaction between the application client and the enabling client, and is conducive to reducing the waste of network resources. .
  • the application client when it is determined that application server discovery and/or routing impact are not to be performed in advance, the application client sends pre-execution application server discovery request indication information and/or pre-execution to the enabling client. Routing impact indication information.
  • the application client can request the client to perform corresponding operations by sending pre-execution application server discovery request indication information and/or pre-execution routing impact indication information. , which is conducive to improving the probability that the application client obtains the application service, and is conducive to improving the initiative of the application client to obtain the application service.
  • the application server type may be determined according to a service key performance indicator of the server.
  • the service key performance indicator includes at least one of the following information: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources and storage resources.
  • the application client can determine the type of enabled service based on some basic information of the application server, and then determine whether to pre-execute the routing effect, which is conducive to simplifying the application client to determine whether to pre-execute the routing effect
  • the judging process and message content are conducive to improving the efficiency of the application client to determine whether to perform application server discovery in advance.
  • This technical solution determines the timing of implementing routing impact through application information. When it is determined that routing impact is pre-executed, it is beneficial to reduce the delay for application clients with high delay requirements to obtain application services. When it is determined that routing impact is not pre-executed, it is beneficial Improve the effectiveness of signaling interactions between application clients and enabling clients. In addition, the implementation of this technical solution is conducive to improving the service quality and service efficiency of the enabled client and the enabled server, and to improving the service experience of the application client, to a certain extent, to reducing signaling waste, and to reducing unnecessary Necessary user plane path optimization helps reduce the waste of network resources.
  • the application client before determining whether to pre-execute routing influence, sends a third request message, where the third request message is used to request to discover one or more application servers .
  • the application client can determine whether to send a request to trigger routing influence for the feedback application server according to the application information. It is not necessary to feed back the application server selected by the application client to the enabling client and then to the enabling server to trigger the routing effect, which is beneficial to reduce the signaling used interactively between the application client, the enabling client, and the enabling server The waste is conducive to improving the application service experience of terminal device users.
  • a communication system including an enabling server, an enabling client, and an application client, wherein the enabling server is used to implement the method in the first aspect or any possible implementation thereof, or the second aspect or its
  • the method in any possible implementation manner enables the client to implement the method in the third aspect or any possible implementation manner thereof or the method in the fourth aspect or any possible implementation manner thereof, and the application client is used to implement The method in the fifth aspect or any possible implementation thereof, or the method in the sixth aspect or any possible implementation thereof.
  • an apparatus for requesting an application function including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to perform routing influence in advance according to the first determination information.
  • the transceiving unit when it is determined to execute the routing influence in advance, is configured to send an application function request message in advance, where the application function request message is used to request to execute the routing influence for one or more application servers.
  • the transceiving unit when it is determined not to perform routing influence in advance, the transceiving unit is configured not to send an application function request message in advance, and the application function request message is used to request to perform routing influence for one or more application servers.
  • the first determination information includes application information
  • the application information includes one or more of the following information: application type, server type, or delay requirement, etc.
  • the The processing unit is used specifically for:
  • Whether to pre-execute routing impact is determined based on one or more of application type, server type, or latency requirements.
  • the first determination information includes indication information
  • the indication information is used to indicate pre-execution of application server discovery indication and/or pre-execution of route influence
  • the processing unit is specifically used to :
  • the pre-execution routing impact is determined according to the pre-execution application server discovery indication and/or the pre-execution routing impact indication.
  • the transceiving unit is further configured to: send a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for the one or more application servers.
  • an apparatus for requesting an application function including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to perform routing influence in advance according to the first determination information.
  • the transceiving unit when it is determined to pre-execute the routing influence, is configured to pre-send an indication message of triggering the execution of the routing impact to the selected application server, where the indication message is used to indicate the pre-triggering execution of the routing impact.
  • the transceiver unit when it is determined not to pre-execute routing influence, is configured to send an indication message not to pre-trigger execution of routing impact to the selected application server, where the indication message is used to indicate pre-trigger execution of routing Influence.
  • the first determination information includes application information
  • the application information includes one or more of the following information: application type, server type, or delay requirement
  • the processing Units are used specifically for:
  • Whether to pre-execute routing impact is determined based on one or more of application type, server type, or latency requirements.
  • the first determination information includes indication information
  • the indication information is used to indicate pre-execution of application server discovery indication and/or pre-execution of route influence
  • the processing unit is specifically used to :
  • the pre-execution routing impact is determined according to the pre-execution application server discovery indication and/or the pre-execution routing impact indication.
  • the transceiving unit is further configured to: send a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for the one or more application servers.
  • an apparatus for requesting an application function including: including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to perform application server discovery in advance according to the second determination information.
  • the transceiver unit when it is determined to perform application server discovery in advance, is configured to send an application server discovery request message in advance, and the application server discovery request message is used to request discovery of one or more application servers, and the one or more application servers Multiple application servers are used to provide application services for application clients.
  • the transceiver unit when it is determined that application server discovery is not performed in advance, the transceiver unit is configured not to An application server discovery request message is sent in advance, where the application server discovery request message is used to request discovery of one or more application servers, and the one or more application servers are used to provide application services for the application client.
  • the second determination information includes application information
  • the application information includes one or more of the following information: application type, server type, or delay requirement, etc.
  • the The processing unit is used specifically for:
  • Whether to perform application server discovery in advance is determined according to one or more of application type, server type, or latency requirement.
  • the second determination information includes indication information
  • the indication information is used to indicate pre-execution of application server discovery indication and/or pre-execution of route influence
  • the processing unit is specifically used to :
  • the pre-execution application server discovery is determined according to the pre-execution application server discovery indication and/or the pre-execution routing impact indication.
  • the transceiver unit is further configured to receive a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for one or more application servers;
  • the transceiver unit is also used to send a first response message, the first response message includes information of one or more application servers, and the first response message is also used to indicate that routing influence has been performed for one or more application servers.
  • an apparatus for requesting an application function including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to perform routing influence in advance according to the second decision information.
  • the transceiver unit when it is determined that pre-execution routing influences, is configured to send an application server discovery request message in advance, where the application server discovery request message is used to request discovery of one or more application servers, and the one or more An application server is used to provide application services for application clients.
  • the transceiver unit when it is determined that routing impact is not to be performed in advance, the transceiver unit is configured not to send an application server discovery request message in advance, and the application server discovery request message is used to request discovery of one or more application servers, the One or more application servers are used to provide application services for application clients.
  • the second determination information includes application information
  • the application information includes one or more of the following information: application type, server type, or delay requirement, etc.
  • the processing unit is used specifically for:
  • Whether to perform routing impact in advance is determined according to one or more of application type, server type, or delay requirement.
  • the second decision information includes indication information, and the indication information is used to instruct to pre-execute application server discovery indication and/or pre-execute route influence, and the processing unit specifically Used for:
  • the pre-execution routing impact is determined according to the pre-execution application server discovery indication and/or the pre-execution routing impact indication.
  • the processing unit is further configured to determine whether to perform application server discovery in advance.
  • the transceiving unit is further configured to receive a discovery response message, where the discovery response message is used to indicate that routing influence has been performed for one or more application servers;
  • the transceiver unit is also used to send a first response message, the first response message includes information of one or more application servers, and the first response message is also used to indicate that routing influence has been performed for one or more application servers.
  • an apparatus for requesting an application function including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to pre-execute application server discovery and/or pre-execute routing influence according to application information, the application information including one or more of the following information: application type, server type, and delay requirements.
  • the transceiving unit when it is determined to pre-execute application server discovery and/or pre-execute routing influence, is configured to pre-send a first request message to the enabling client;
  • the transceiving unit when it is determined not to perform application server discovery and/or not to perform route influence in advance, is configured not to send the first request message to the enabling client in advance.
  • the transceiver unit is further configured to receive a first response message, where the first response message includes one or more application server information, and the first response message is also Used to indicate that routing influence has been performed for one or more application servers.
  • the transceiver unit when it is determined to pre-execute application server discovery and/or pre-execute routing influence, is specifically configured to: pre-send the second An indication message, where the second indication message is used to indicate the pre-triggering execution of routing effects, and the one or more application servers include the selected application server.
  • an apparatus for requesting an application function including a processing unit and a transceiver unit,
  • the processing unit is configured to determine whether to pre-execute routing influence according to application information, where the application information includes one or more of the following information: application type, server type, or delay requirement.
  • the transceiver unit when it is determined to pre-execute the routing impact, is configured to send a second request message to the selected application server in advance, where the second request message is used to request the pre-execution of the routing impact, and the selected
  • the application server is included in one or more application servers, and the one or more application servers are used to provide application services for application clients.
  • the transceiver unit when it is determined not to pre-execute routing influence, is configured not to pre-send a second request message to the selected application server, where the second request message is used to request pre-execution of routing influence, the The selected application server is included in one or more application servers, and the one or more application servers are used to provide application services for application clients.
  • the transceiving unit is further configured to: send a third request message, where the third request message is used to request discovery of one or more application servers.
  • a device for requesting an application function including a processor for executing computer instructions stored in a memory, so that the device executes the method in the first aspect or any possible implementation thereof or the second A method in an aspect or any possible implementation thereof.
  • an apparatus for requesting an application function including a processor for executing computer instructions stored in a memory, so that the apparatus executes the method in the third aspect or any possible implementation thereof or the fourth aspect A method in an aspect or any possible implementation thereof.
  • an apparatus for requesting an application function including a processor for executing computer instructions stored in a memory, so that the apparatus executes the method in the fifth aspect or any possible implementation thereof or the sixth aspect A method in an aspect or any possible implementation thereof.
  • a computer program product includes computer program code.
  • the computer program product includes computer program code.
  • a computer program product includes computer program code.
  • the computer program product includes computer program code.
  • the method in the third aspect or any possible implementation thereof is executed or the method in the first aspect is executed.
  • the method of the four aspects or any possible implementation thereof is performed.
  • a computer program product includes computer program code.
  • the computer program product includes computer program code.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • the method in the first aspect or any possible implementation thereof Or the method in the second aspect or any possible implementation thereof is executed.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • the third aspect or any possible implementation thereof The method or method of the fourth aspect or any possible implementation thereof is performed.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • the computer instructions are run on a computer, the The method or method of the sixth aspect or any possible implementation thereof is performed.
  • a chip including a processor, configured to read an instruction stored in a memory, and when the processor executes the instruction, the chip implements the first aspect or any possible implementation thereof. A method or a method of the second aspect or any possible implementation thereof is performed.
  • a chip including a processor, configured to read instructions stored in the memory, and when the processor executes the instructions, the chip implements the third aspect or any possible implementation thereof. The method or method of the fourth aspect or any possible implementation thereof is performed.
  • a chip including a processor, configured to read an instruction stored in a memory, and when the processor executes the instruction, the chip implements the fifth aspect or any possible implementation thereof.
  • the method or method of the sixth aspect or any possible implementation thereof is performed.
  • Fig. 1 is a schematic diagram of a network architecture applicable to the embodiment of the present application.
  • Fig. 2 is a schematic diagram of an EAS discovery process applicable to the embodiment of the present application.
  • Fig. 3 is a schematic diagram of an EES discovery process applicable to the embodiment of the present application.
  • Fig. 4 is a schematic diagram of a method for triggering execution of routing impact provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another method for triggering execution of routing impact provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of a method for requesting an application function provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 12 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 13 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • Fig. 15 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • Fig. 16 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • nouns as for the number of nouns, unless otherwise specified, it means “singular noun or plural noun", that is, “one or more”. “At least one” refers to one or more, “multiple” refers to two or more, and “multiple” in “one or more” refers to two or more. "And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character “/" generally indicates that the contextual objects are an "or” relationship. For example, A/B means: A or B.
  • At least one of the following or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • at least one item (piece) of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c Can be single or multiple.
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • general packet radio service general packet radio service, GPRS
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Worldwide Interoperability for Microwave Access (WiMAX) Communication System
  • Fifth Generation (5G) system or the future sixth generation (6th generation, 6G) system etc.
  • the terminal equipment in the embodiment of the present application may refer to user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless Communication Device, User Agent, or User Device.
  • the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in public land mobile network (PLMN), etc.,
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Functional handheld devices computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in public land mobile network (PLMN), etc.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system of mobile communication (GSM) system or a code division multiple access (CDMA)
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • the base station (base transceiver station, BTS) in the wideband code division multiple access (wideband code division multiple access, WCDMA) system (nodeb, NB) can also be the evolved type base station (evolutionalnodeb) in the LTE system , eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle device, a wearable device, and a 5G network
  • the network device in the network or the network device in the PLMN network is not limited in this embodiment of the present application.
  • Fig. 1 is a schematic diagram of a network architecture applicable to the embodiment of the present application.
  • a user equipment includes one or more application clients (application client, AC) and an edge enabler client (edge enabler client, EEC).
  • the user equipment can establish a connection with the edge data network through the application client and/or the edge-enabled client to obtain the application service.
  • the application client is used for application users to obtain application services from the application server.
  • the application client is a client program applied on the terminal side.
  • the application client can connect to the application server on the cloud to obtain application services, or connect to the deployment and run in one or more edge data networks (EDN) Edge Application Server (EAS) to obtain application services.
  • EDN edge data networks
  • EAS Edge Application Server
  • the Edge Enablement Client (EEC) is used to register the information of the EEC and the information of the application client with the Edge Enablement Server (EES), perform security authentication and authentication, and obtain the Internet protocol (internet protocol, IP) of the EAS from the EES Address, providing edge computing enabling capabilities to application clients, such as providing EAS discovery services, returning the IP address of EAS to application clients.
  • EEC Edge Enablement Client
  • EES Edge Enablement Server
  • the edge data network includes an edge application server (EAS) and an edge enabling server (EES). Through the cooperation of the edge application server and the edge enabling server, the edge data network can provide application services for user equipment.
  • EAS edge application server
  • EES edge enabling server
  • An edge application server may also be called an edge application, an application instance, an edge application instance, a multi-access edge computing (muti-access edge computing, MEC) application (server), or an EAS function.
  • EAS is an application deployed in an edge data network, specifically a server application (eg, social media, augmented reality (AR), virtual reality (VR)).
  • An application can deploy one or more EASs in one or more EDNs.
  • EASs deployed and running in different EDNs can be regarded as different EASs of an application. They can share a domain name, use a single IP address, or Use a different IP address.
  • the edge enablement server is used to provide some enabling capabilities for application instances deployed in the EDN, and can better support the deployment requests of applications in the MEC.
  • EES can support the registration of edge applications, authentication and authentication of UEs, provide UEs with the IP address information of application instances, etc., and can further support obtaining the identification and IP address information of application instances, and further combine the identification and IP address information of application instances
  • the address information is sent to the edge data network configuration server (edge configuration server, ECS).
  • EES is deployed in EDN.
  • EAS is registered to an EES, or the information of an EAS is configured on an EES through the management system. This EES is called the EES associated with the EAS.
  • EES can control and manage registration and configuration. EAS on that EES.
  • the edge configuration server is responsible for the configuration of the EDN, such as providing EES information to the UE, and can also directly provide the information of the application instance to the UE and interact with the application domain name system (domain name system, DNS) to obtain the information of the application instance , and then obtain and save the information of the application instance and the IP address from other functional entities.
  • EES edge configuration server
  • an application data route (application data traffic, ADT) is set between the application client and the edge application server, the application client and the edge-enabled client, the edge application server and the edge-enabled server, and the edge-enabled server There are communication interfaces between the edge configuration server and the edge configuration server.
  • ADT application data traffic
  • the application user signs a service agreement with the application provider to provide services for the application user, and the application user logs in to the application client on the terminal, and communicates through the connection between the application client and EAS .
  • the enabling client is an intermediate layer, generally located in the operating system, or between the application client and the operating system.
  • the application client can be enabled from the application programming interface (application program interface, API) Clients acquire edge-enabled services.
  • Detection of application context migration It is judged that context migration may be required. At this time, some events are mostly detected by the detection entity, such as UE location change, or UE user plane path update, etc.
  • Execution of application context migration mainly to transfer the application context from the source EAS to the target EAS, and may further include the information notifying the terminal target EAS, notifying the completion of the network context migration and the relevant information of the target EAS (such as the target EAS address, target EAS corresponding to N6 routing information, etc.).
  • Edge computing Also translated as edge computing, it is a distributed computing architecture that transfers the computing of applications, data and services from the central node of the network to the logical edge nodes of the network for processing .
  • Edge computing decomposes large-scale services that were originally processed by central nodes, cuts them into smaller and easier-to-manage parts, and disperses them to edge nodes for processing.
  • the edge node is closer to the user terminal equipment, which can speed up the processing and sending of data and reduce the delay. Under this framework, the analysis of data and the generation of knowledge are closer to the source of data, so it is more suitable for processing big data.
  • Multi-access edge computing It can use the wireless access network to provide telecommunications users information technology (information technology, IT) services and cloud computing functions nearby, creating a high-performance, low-latency and high-bandwidth
  • IT information technology
  • cloud computing functions nearby, creating a high-performance, low-latency and high-bandwidth
  • the carrier-class service environment accelerates the fast download of various content, services and applications in the network, allowing consumers to enjoy uninterrupted high-quality network experience.
  • Data network refers to the service network of operators or third parties, which can provide services to user equipment, such as operator services, Internet services, etc.
  • LADN Local area data network
  • EDN Edge Data Network
  • LDN local data network
  • DNAI data network access identifier
  • DNN data network name
  • EDN is a peer-to-peer concept of the central cloud, which can be understood as a local data center (geographical location concept), can be identified by DNAI, and can contain multiple local data networks.
  • Application context refers to the running status information related to one or a group of users.
  • it can also include the context subscribed by the one or more users in the source EAS and the core network, such as subscribed transaction ID, etc.
  • it also includes the context of the one or more users on the EES, for example, the transaction identifier of the source EAS's subscription to the one or more users.
  • Application context migration During the running of the edge application, when the UE moves out of the current service area, such as UE movement between EDNs or UE movement between LADNs, the edge application server currently providing services may not be able to continue Provide services for currently running applications, or the edge application server currently providing services is no longer the optimal application server that can provide services for the UE, and other edge application servers may be more suitable for serving the application client on the UE, so Need to replace current serving edge applications with new edge application servers In this process, the application service will be temporarily suspended or interrupted, and the application context needs to be migrated to the new edge application server, so as to ensure that the impact of application interruption is minimized .
  • DNAI Data Network Access Identifier
  • Routing influence refers to the process in which the session management function (SMF) network element or network exposure function (NEF) network element of the core network determines the optimized user plane path between the terminal device and the application server.
  • SMF session management function
  • NEF network exposure function
  • the application client or terminal device can access the edge data network (EAS or EES) through a suitable user plane function (UPF) network element, so as to obtain network application services.
  • EAS edge data network
  • UPF user plane function
  • the session management function network element or the network opening function network element does not need to perform routing influence.
  • Routing influence can be triggered by the enabling server, or by the application server or configuration server. Routing influence can be executed in the form of direct triggering. Exemplarily, the enabling server directly sends an application function request message to the SMF or NEF of the core network to request triggering to execute the routing influence. Routing influence can also be executed in the form of indirect triggering. Exemplarily, the enabling server sends an indication message triggering execution of routing influence to a selected application server, and the selected application server then sends an application function request message to SMF or NEF, Request triggers perform routing effects.
  • this application only uses session management function network elements and network opening function network elements as examples to illustrate the execution process of routing influence.
  • routing influence can also be performed by other core network elements, or session management function network elements.
  • the element and the network element with the network opening function may also have other names, which are not limited in this embodiment of the present application.
  • the session management function network elements described in this application can be replaced by SMF network elements or SMF, the network opening function network elements can be replaced by NEF network elements or NEF, and the user plane function network elements can be replaced by UPF network elements or UPF .
  • the EAS discovery process is used to determine one or more application servers that can provide application services for application clients. After the EEC obtains the uniform resource locator (URL) information, IP address or other information of the EES, and the EES configures the EAS discovery policy of the edge computing service provider (ESCP), EAS can be executed. Discover.
  • URL uniform resource locator
  • IP address IP address or other information of the EES
  • EES configures the EAS discovery policy of the edge computing service provider (ESCP)
  • EAS can be executed. Discover.
  • the EEC sends an EAS discovery request message to the EES.
  • the EAS discovery request includes the EEC ID and security credentials, and may include an EAS discovery filter parameter (discovery filter) to retrieve information about a specific EAS or a specific type of EAS (such as a game application).
  • EAS discovery filter parameter discovery filter
  • the information that can be included in the EAS discovery request message is shown in Table 1.
  • the EES checks whether the EEC is authorized to discover the requested EAS.
  • the EES identifies it based on the EAS discovery filter parameters and the location of the user device EAS.
  • the EES does not acquire the EAS discovery filter parameters, and the EES identifies the EAS based on the user equipment specific service information and the location of the terminal equipment on the EES.
  • the EES does not obtain the EAS discovery filter parameters, and the EES identifies the EAS by applying the ESCP policy (eg, only based on the location of the terminal device).
  • the EES may select one or more EASs according to at least one of the following information: location information of the terminal device, specific service information of the terminal device, ECSP policy and EAS discovery filter parameters.
  • the filter parameter may include one or more of the type of the application client, the type of the application server, and information on the delay requirement of the application client.
  • the EES sends an EAS discovery response message to the EEC.
  • the EES rejects the service provision request and gives the corresponding failure reason.
  • the terminal device is located outside the geographic or topological service area of the EAS.
  • the EES processing request is successful, and the EAS discovery response message includes the discovered EAS information and its endpoint information.
  • ECS Before executing the EES discovery process, ECS will configure EEC-related available edge computing service information based on terminal device location, service requirements, service preferences, and connectivity information for EEC to discover available EES.
  • the EEC sends a service provisioning request (service provisioning request) message to the ECS.
  • the service provision request message is used to request the ECS to trigger EES discovery, and the service provision request message includes a terminal device identifier, such as GPSI, connection information, terminal device location and AC profile information.
  • a terminal device identifier such as GPSI, connection information, terminal device location and AC profile information.
  • the information that may be included in the service provision request message is shown in Table 5.
  • ECS performs authentication and authorization after receiving the request information.
  • the ECS sends a service provision response message to the EEC.
  • the ECS matches the EES registered on the ECS according to the AC configuration file provided by the EEC and the location information of the terminal device. If the ECS cannot determine the EES information according to the request message from the EEC, the ECS rejects the service provision request and gives reason of failure.
  • the ECS successfully processes the service request, and the ECS sends a service provision response message to the EEC, and provides EDN connection information, a list of EESs that meet the EEC request information, and address identification information of the EES.
  • the information contained in the service provision response message is shown in Table 6.
  • Fig. 4 is a schematic diagram of a method for triggering and executing routing influence provided by the present application.
  • the EES sends an application function request message to the SMF or NEF of the core network for requesting execution of routing influence.
  • the EES sends an application function request message to the core network.
  • the application function request message is used to instruct the SMF or NEF to perform routing influence.
  • the EES directly requests the SMF to perform the routing influence, or the EES requests the NEF to perform the routing influence, and the NEF requests the SMF to perform the routing influence for the application client or the terminal device or the application server.
  • the EES sends an application function request message to the SMF or NEF once, and the application function request message includes DNAI information of all EASs that need to perform routing effects, and the DNAI information of the EAS is used to indicate the potential location of the application server.
  • the EES sends multiple application function request messages to the SMF or NEF, the application function request message includes the DNAI information of one or more EASs that need to implement routing influence, and the DNAI information of the EAS is used to instruct the application server potential location.
  • the application function request message may include information of one or more EASs, and is used to request the SMF or NEF of the core network to perform routing influence for the one or more EASs.
  • the information of the one or more EASs is included in the EAS list.
  • the application function request message includes the information of the target EAS, and is used to request the SMF or NEF of the core network to perform routing influence for the target EAS.
  • the target EAS is an EAS selected from one or more EAS candidates in the EAS discovery process, and the target EAS may also be referred to as a selected EAS.
  • the process of selecting a target EAS from candidate EASs may be performed by the EES, the EEC, or the application client.
  • the target EAS is determined by the application client. After the application client selects the target EAS, it sends the target EAS to the EEC, and the EEC reports the received target EAS to the EES.
  • the target EAS is determined by the EEC, and the EEC reports the target EAS to the EES after selecting the target EAS.
  • the application function request message also includes one or more of the following information: user equipment identity (UE identification, UE ID), EAS information (EAS or EAS list), subscription type information, and application function transaction identification (application function transaction identifier) route influence, the subscription type can be early notification (early notification) or late notification (late notification).
  • UE identification user equipment identity
  • EAS information EAS or EAS list
  • subscription type information subscription type information
  • application function transaction identification application function transaction identifier
  • the subscription type can be early notification (early notification) or late notification (late notification).
  • the SMF sends the target DNAI to the EES.
  • the SMF or NEF of the core network can send one or more of the following information to the EES by sending Nsmf_EventExposure_Notify: target DNAI, application function service identifier, EAS identifier, etc., and the target DNAI is the preferred DNAI for accessing the EAS.
  • the EES can determine that the target DNAI is the DNAI of the EAS with optimized user plane information of the UE-EAS.
  • the SMF or the NEF respectively selects target DNAIs for one or more EASs, and performs routing influence for the target DNAIs, so that there is an optimized user plane path between the terminal device and the target DNAIs.
  • the SMF of the core network performs UPF insertion, deletion and modification operations.
  • the SMF does not need to perform operations such as insertion, deletion, or modification of user plane network elements. That is, in this case, SMF or NEF may not perform routing influence.
  • the SMF or NEF may perform routing influence for the target DNAI before sending the target DNAI to the EES, that is, S303 may be performed before S302.
  • FIG. 5 is a schematic diagram of another method for implementing routing influence provided by the embodiment of the present application.
  • the target EAS sends an application function request message to the SMF or NEF of the core network to request the implementation of routing influence.
  • the EAS sends an application function request message to the core network.
  • the application function request message is used to request the SMF or NEF to perform routing influence for the terminal device or application client or application server.
  • the EAS directly requests the SMF to perform the routing influence, or the EAS requests the NEF to perform the routing influence, and the NEF requests the SMF to perform the routing influence for the application client or the terminal device or the application server.
  • the application function request message sent by the EAS may include one or more DNAI information for accessing the EAS, and the DNAI information of the EAS is used to indicate the potential location of the application server.
  • the route affecting application function request message sent by the EAS may include one or more of the following information: UE ID, EAS information, subscription type information, and application function service identifier.
  • the subscription type may be early Notice or late notice.
  • the target EAS when it is determined that the target EAS has the DNAI of the optimized user plane path, the target EAS does not need to send an execution route influence request message to the SMF or the NEF.
  • the core network sends the target DNAI to the EAS.
  • SMF or NEF can send one or more of the following information to EAS by sending Nsmf_EventExposure_Notify message: target DNAI, application function service identifier or EAS identifier, and the target DNAI is the preferred DNAI for accessing EAS.
  • the SMF or NEF performs routing influence for the target DNAI, so that there is an optimized user plane path between the terminal device and the target DNAI.
  • the SMF or the NEF determines that the target DNAI has an optimized user plane path, and there is no need to perform routing influence for the target DNAI.
  • the SMF of the core network performs UPF insertion, deletion and modification operations.
  • the target DNAI can configure the optimized user plane path.
  • the SMF does not need to perform operations such as insertion, deletion, or modification of user plane network elements. That is, in this case, SMF or NEF may not perform routing influence.
  • the SMF or NEF may perform routing influence for the target DNAI before sending the target DNAI to the EAS, that is, S403 may be performed before S402.
  • FIG. 6 is a schematic diagram of a method for requesting application functions provided by the present application.
  • the application client determines whether to pre-execute application server discovery and/or pre-execute routing influence.
  • Pre-execution refers to execution before the application client is started or before the application client has data interaction with the application server. Pre-execution can also be called execution, early execution, prior execution, and immediate execution.
  • the application server discovery process is performed by the enabling server, and the routing influence process is performed by the SMF or NEF of the core network.
  • the execution here can be understood as trigger execution. Executing application server discovery and/or route influence in advance can prepare application clients for obtaining application services, and application services can be quickly obtained when application clients start.
  • the routing influence application client can determine whether to perform application server discovery and/or routing influence in advance according to application information, the application information including one or more of application type, application server type, or delay requirement.
  • the enabling client may send a first response message to the application client, and the first response message may include one or more application
  • the one or more application servers may be application servers that have been triggered to execute the routing influence, or may be application servers that have not been triggered to execute the routing influence.
  • the one or more application servers may be application servers that have completed routing influence, or may also be application servers that have not completed route influence.
  • the application server that has not completed the routing influence may refer to the enabling server that has requested the SMF or NEF of the core network to implement the routing influence, and received the confirmation message sent by the SMF or NEF, and can implement the routing influence for the application server, but the routing Affects conditions that have not yet completed execution. It can also refer to the case where the enabling server has not requested the execution of routing influence from the SMF or NEF.
  • the first response message may also be used to indicate whether one or more application servers returned to the application client trigger execution of routing influence.
  • the first response message may also be used to indicate whether one or more application servers returned to the application client complete the routing influence.
  • the first response message indicates that one or more application servers have not completed the routing influence, and the application client determines whether to perform the routing influence in advance according to the application information.
  • the application client determines to execute the routing influence in advance, and the application client may request the enabling client to execute the routing influence for the selected application server, and then the enabling client requests the enabling server to trigger the execution of the routing influence, so that The server can send an application function request message to the SMF or NEF, thereby triggering the execution of routing effects.
  • the enabling server after the enabling server receives the message of enabling the client to request to implement routing influence, it sends a message to the selected application server to execute the routing influence, and then the selected application server sends an application function request to the SMF or NEF message, thereby triggering the execution of routing effects.
  • the application client determines to pre-execute the routing influence, and the application client may send a second request message to the selected application server in advance;
  • the application server sends a second request message, and the second request message is used to request to perform routing influence for the selected application server.
  • the selected server refers to one or more application servers selected from one or more candidate application servers discovered through the application server discovery process.
  • the selection process can be performed by the application client, or by enabling the client terminal or enable server execution.
  • the selected application server already has an optimized user plane path.
  • SMF or NEF does not need to perform routing influence for the selected
  • the server performs modification operations of user plane paths such as insertion, deletion or modification of UPF network elements.
  • the selected application server does not have an optimized user plane path, and the SMF or NEF may be requested to perform routing influence for the selected application server.
  • performing routing influence for a selected application server may also be understood as performing routing influence for a selected application client or a selected terminal device.
  • the application client sends a first request message to the enabling client.
  • the first request message includes application information and/or indication information
  • the application information includes one or more of the following information: application type, server type, or delay requirement
  • the indication information includes pre-executed application Server discovery indication and/or pre-execution routing impact indication.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the application client determines not to perform application server discovery and/or not to perform route influence in advance, the application client does not send the first request message to the enabling client.
  • the application client determines to pre-execute application server discovery and/or pre-execute routing influence, and the application client sends a first request message to the enabling client.
  • the first request message sent by the application client does not include application information or indication information, and the enabling client and the enabling server cannot obtain the second judgment criterion or the first judgment criterion, and the enabling client obtains the second judgment criterion or the first judgment criterion.
  • the candidate application server information is obtained, the candidate server information is fed back to the application client.
  • the application server can determine whether to pre-execute the routing influence according to the application information. If the routing influence needs to be pre-executed, the application client sends an application function request message to the selected application server after selecting the application server, thereby requesting the SMF or NEF to be The application server and/or the application client and/or terminal device perform routing influence. Alternatively, the application client may send a request to the enabling client to perform routing influence in advance, so that the enabling client requests the enabling server to perform routing influencing, so that the enabling server requests the selected application server to perform routing influencing or directly requests the SMF or NEF performs routing influence for selected application servers.
  • the enabling client determines whether to pre-execute application server discovery and/or pre-execute route influence according to the second decision information.
  • the enabling client can obtain the second decision information by receiving the first request message from the application client, and the second decision information can also be configured to the enabling client in a pre-configured manner, or be provided by the enabling client in other more ways Obtain.
  • the second determination information includes application information
  • the application information includes one or more of the following information Multiple items: application type, application server type, or latency requirements, etc.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the second determination information includes indication information, and the indication information is used to indicate pre-execution of application server discovery and/or pre-execution of route impact.
  • the second decision information includes application information and indication information.
  • the enabling client can feed back the information of one or more candidate application servers to the application client, and the enabling client can also whether the candidate application server The indication information of the route impact is completed and fed back to the application client together.
  • the client is enabled to feed back the information of the application servers among the candidate application servers that have completed routing influence to the application client.
  • the enabling client sends an application server discovery request message to the enabling server.
  • the enabling client determines not to perform routing influence in advance according to the application type in the first request message, the enabling client does not send an application server discovery request message to the enabling server in advance.
  • the enabling client determines not to perform routing impact in advance according to the delay requirement in the first request message, the enabling client does not send an application server discovery request message to the enabling server in advance.
  • the enabling client determines not to perform routing influence in advance according to the application server type in the first request message, the enabling client does not send an application server discovery request message to the enabling server in advance.
  • the enabling client determines to pre-execute application server discovery and/or pre-execute route influence according to the application type in the first request message, and the enabling client sends an application server discovery request message to the enabling server.
  • the enabling client determines to pre-execute application server discovery and/or pre-execute route impact according to the delay requirement in the first request message, and the enabling client sends an application server discovery request message to the enabling server in advance.
  • the enabling client determines to pre-execute application server discovery and/or pre-execute route influence according to the application server type in the first request message, and the enabling client sends an application server discovery request message to the enabling server in advance.
  • the enabling client determines to pre-execute application server discovery and/or pre-execute routing influence according to the indication information in the first request message, and the enabling client sends an application server discovery request message to the enabling server in advance.
  • the client is enabled to determine whether to pre-execute application server discovery and/or pre-execute routing influence according to the application information and indication information in the first request message, so as to determine whether to pre-send an application server discovery request message.
  • the enabling client determines the pre-execution routing influence according to the second determination information, and according to the pre-execution The judgment result of routing influence enables the client to determine to perform application server discovery in advance.
  • the enabling client determines not to perform routing impact in advance according to the second determination information, the enabling client determines not to send an application server discovery request message in advance to perform application server discovery according to the determination result of not performing routing impact in advance.
  • the enabling server determines whether to perform routing influence in advance according to the first determination information.
  • the first determination information may be obtained by receiving a message sent by the enabling client, or may be obtained by other methods such as pre-configuration.
  • the first determination information includes application information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the first determination information includes indication information
  • the indication information includes a pre-execution application server discovery indication and/or a pre-execution routing impact indication.
  • the first decision information includes application information and indication information.
  • the enabling server determines not to perform routing impact in advance according to the application type in the application server discovery request message, the enabling server does not send the application function request message.
  • the enabling server determines not to perform routing impact in advance according to the delay requirement in the application server discovery request message, the enabling server does not send the application function request message.
  • the enabling server determines not to perform routing influence in advance according to the application server type in the application server discovery request message, the enabling server does not send the application function request message.
  • the enabling server determines the pre-execution route influence according to the application type in the application server discovery request message, and the enabling server sends the application function request message.
  • the enabling server determines the effect of pre-executing routing according to the delay requirement in the application server discovery request message, and enables the server to send the application function request message.
  • the enabling server determines the pre-execution route influence according to the application server type in the application server discovery request message, and the enabling server does not send the application function request message.
  • the enabling server determines to pre-execute routing influence according to the indication information in the application server discovery request message, and the enabling server sends the application function request message.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the enabling server determines whether to perform routing influence in advance according to the application information and indication information in the application server discovery request message, so as to determine whether to send the application function request message.
  • the enabling server determines one or more candidate application servers after performing the application server discovery process, and the enabling server may request SMF or NEF to perform routing influence for the one or more candidate application servers in advance, or the enabling server may directly
  • the one or more candidate application server information is fed back to the enabling client, or the enabling service
  • the server may also select a selected application server from the candidate application servers, and send a message requesting to execute routing influence to the selected application server, requesting the selected application server to trigger the execution of routing influence.
  • the enabling server After determining the information of the selected application server, the enabling server then requests SMF or NEF to perform routing influence for the selected application server, or the enabling server can also directly request the selected application server to perform routing influence for the selected application server Triggers execution routing effects.
  • the enabling server can send the information of one or more candidate application servers to the enabling client through a discovery response message, and the one or more candidate application servers can be the application servers that have triggered the execution of the routing influence or have not triggered the execution
  • the discovery response message may also include indication information whether the one or more candidate application servers have triggered the execution of the route influence.
  • the AC determines whether to pre-execute application server discovery and/or pre-execute route influence and the EEC determines whether to pre-execute application server discovery and/or pre-execute route influence and whether EES pre-executes route influence can be independent. Execution can also be performed jointly. That is, at least one of S501, S503 or S505 needs to be executed.
  • the enabling server may also determine whether to pre-execute routing impact according to any of the following methods:
  • the enabling server determines whether to perform routing impact in advance according to the received reported selected application server information (such as application server type) or according to the received reported event of the selected application server information.
  • the enabling client reports the indication information that the application client will transmit data to the application server to the enabling server, and the enabling server determines whether to pre-execute routing influence according to the reported event.
  • the enabling client reports the request message of pre-executing the routing impact to the enabling server, and the enabling server determines whether to pre-execute the routing impact according to the reported event.
  • Fig. 7 is a schematic diagram of a method for requesting an application function provided by an embodiment of the present application.
  • the EEC determines whether to trigger the execution of EAS discovery in advance according to the application information, and the EES determines whether to immediately execute the routing influence after receiving the EAS discovery request information from the EEC.
  • the EAS sends an EAS registration request message to the EES.
  • the registration request message is used to request to register EAS on the EES, and the registration request message may include an EAS configuration file (EAS profile), and the EAS configuration file includes a DNAI list, and a terminal device or an application client can access through the DNAI in the DNAI list to the EAS to obtain the application services provided by the EAS.
  • EAS configuration file EAS profile
  • the EAS configuration file includes a DNAI list
  • a terminal device or an application client can access through the DNAI in the DNAI list to the EAS to obtain the application services provided by the EAS.
  • the EAS sends an EAS registration update request message to the EES, where the EAS registration update request message is used to request to update the registration information of the EAS already registered on the EES.
  • the DNAI information of the EAS can be directly included in the registration request message.
  • EES can also obtain EAS-related information (such as EAS DNAI information) through pre-configuration. After EES obtains EAS-related information through pre-configuration, EAS can no longer send EAS registration information to EES. The request, that is, S601 and S602 can no longer be executed.
  • EAS-related information such as EAS DNAI information
  • the EES sends an EAS registration response message to the EAS.
  • the EAS registration response message is used to indicate whether the EAS registration is successful.
  • the EES receives the registration update request message sent by the EAS, the EES sends an EAS registration update response message to the EAS.
  • the registration response message may include: the ID of the EAS registration, the expiration time of the EAS registration, and the like.
  • the registration response message may include reason information of the EAS registration failure and the like.
  • S601 and S602 may not be executed when the EES obtains the relevant information of the EAS through pre-configuration.
  • the EEC determines whether to perform EAS discovery in advance.
  • the purpose of performing EAS discovery is to determine an EAS suitable for providing application services for an application client and an access method of the EAS.
  • Pre-execution of EAS discovery refers to the execution of EAS discovery before the application client starts or before the application client interacts with EAS data. Pre-execution can also be called early execution or immediate execution.
  • the EAS suitable for providing application services for the application client determined through the EAS discovery process may be referred to as a candidate EAS, and the specific EAS discovery process may refer to the relevant description in FIG. 2 .
  • the EEC determines whether to perform EAS discovery in advance according to the application information, wherein the application information includes one or more of the following information: application client type (or application type), application server type (or server type) Or the delay requirement (or delay requirement) of the application client.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may also be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the EEC determines whether to perform EAS discovery in advance according to the application client type.
  • the EEC judges that the application client is an application client that does not require high delay according to the type of the application client, and the EEC determines not to perform EAS discovery in advance.
  • the EEC judges that the application client is an application client with high latency requirements, and the EEC determines to perform EAS discovery in advance.
  • the application client type is a highly reliable low latency communication (ultra reliable low latency communication, URLLC) type of service, or the application client is an application with high requirements on latency such as games, the EEC will This kind of application client performs EAS discovery in advance.
  • URLLC ultra reliable low latency communication
  • the EEC judges whether to perform EAS discovery in advance according to the delay requirement information of the application client, where the delay requirement may also be referred to as a delay requirement.
  • the EEC judges that the application client is an application client that does not require high latency according to the latency requirement of the application client, and the EEC determines not to perform EAS discovery in advance.
  • the EEC judges that the application client is an application client with a high latency requirement according to the latency requirement of the application client, and the EEC determines to perform EAS discovery in advance.
  • the EEC saves a preset delay threshold. After receiving the request message sent by the application client, the EEC obtains the delay requirement of the application client. When the delay requirement is less than the delay threshold, the EEC judges that the The application client performs EAS discovery in advance, and when the delay requirement is greater than the delay threshold, the EEC determines not to perform EAS discovery for the application client in advance.
  • the EEC judges whether to perform EAS discovery in advance according to the application server type, and the application server The server can be of the expected application server type or the basic application server type.
  • the expected application server can also be called the ideal application server, which means that the key performance indicators of the application server can provide complete application services for the application client.
  • the basic application server can also be called the basic application server or the smallest application server, which means that the key performance indicators of the application server can only maintain the basic application services of the application client.
  • the types of application servers can be distinguished according to the service key performance indicators of application servers, which can include: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources and Storage resources.
  • service key performance indicators of application servers can include: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources and Storage resources.
  • the EEC determines that the application server is a basic application server according to the connection bandwidth in the service key performance indicator of the application server, and the EEC determines not to perform application server discovery in advance according to the type of the application server.
  • the EEC determines that the application server is an expected application server according to the response time, availability and memory resources in the service key performance indicators of the application server, and the EEC determines to perform application server discovery in advance according to the type of the application server.
  • the type of the application server can also be determined solely according to the application client type (application client type, AC type).
  • the EEC may also determine whether to pre-execute route impact according to the application information.
  • the content of the determination method is similar to the content of determining whether to pre-execute EAS discovery based on the application information. For details, please refer to the above.
  • the EEC determines the effect of pre-executing routing according to the application information, and according to the judgment result of pre-executing routing impact, the EEC determines to pre-execute EAS discovery.
  • One or more of the application type, application server type, or delay requirements that can be included in the application information can be configured on the EEC in a pre-configured manner, or can be sent by the application client to the EEC by sending a message To the EEC, or to be acquired by the EEC in other more ways, this application does not limit the way that the EEC can acquire the information contained in the application information.
  • the EEC Before sending the EAS discovery request message, the EEC first judges whether to execute the EAS discovery in advance. The judgment is based on the information related to the attributes of the application client itself. The execution of this judgment can enable the EEC to serve the application client according to the Provide differentiated services based on different terminals, which is conducive to improving the service efficiency of terminal equipment, rationally allocating resources of terminal equipment, and improving user application experience.
  • the EEC determines not to pre-execute the EAS discovery for the application client according to the judgment result of not pre-executing the EAS discovery for the same application client.
  • the EEC determines not to pre-execute the EAS discovery for the application client according to the judgment result of the impact of not pre-executing routing on the same application client.
  • S604 to S607 may not be performed any more.
  • the EEC saves the judgment result of not performing EAS discovery in advance.
  • the EEC may send indication information to the application client indicating that EAS discovery has not been performed in advance.
  • indication information refer to the description of the embodiment shown in FIG. 15 later, and will not be described in detail here.
  • the EEC pre-sends an EAS discovery request message to the EES.
  • the EAS discovery request message is used to request to discover one or more EASs to provide application services for the application client, the The discovery request may also be carried in messages such as an EAS discovery subscription request message or an EAS discovery subscription update request message, and this embodiment of the present application does not limit the specific bearer message.
  • Sending in advance can also be referred to as sending, sending in advance, sending immediately, etc., and refers to sending the EAS discovery request message before the application client starts or before the application client has data interaction with the EAS.
  • the EAS discovery request message also includes one or more of the following information: EAS discovery filter parameters, terminal device location information, terminal device specific service information, and ECSP policy.
  • EES can At least one of the above information in the selection of candidate EAS.
  • the EAS discovery request message includes the application client type.
  • the EAS discovery request message includes an application client configuration file
  • the application client configuration file includes an application client type
  • the EAS discovery request message includes EAS discovery filtering parameters
  • the application client configuration file in the EAS discovery filtering parameters includes the application client type.
  • the EAS discovery request message includes information about the delay requirement of the application client.
  • a delay requirement-related information element is added in the EAS discovery request message, and the information element is used to store the delay requirement of the application client.
  • the EAS discovery request message uses the existing information element to store the delay requirement of the application client.
  • the delay requirement may be carried in the EAS discovery filter parameter, or in the feature list of the application client, or in the configuration file of the application client in the feature list of the application client, or in the EAS feature list, or in the EAS feature list in the EAS configuration file.
  • the EAS discovery request message includes the application server type.
  • the EAS discovery request message includes one or more service key performance indicators that can determine the type of the application server.
  • the EAS discovery request message includes one or more of the service key performance indicator parameters of the application server: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources or Storage resources. S605.
  • the EES determines whether to perform routing influence in advance.
  • Immediate execution may also be referred to as execution, early execution, or advance execution. Since routing effects are executed by SMF or NEF, execution here can be understood as trigger execution.
  • the EES determines whether to perform routing influence immediately according to one or more of the application client type, the application server type, or information on the delay requirement of the application client.
  • the EES determines that the application client is a type of application client that requires a higher delay, and the EES determines that the pre-execution routing influence.
  • the EES determines, according to the type of the application client, that the application client is an application client type that does not have high requirements on delay, and the EES determines that no routing impact is performed in advance.
  • the EES saves a list of different application client types, in which a corresponding relationship is established between the application client type and whether to pre-execute routing, and the EES can determine whether different types of application clients are pre-executed according to the list. Routing effects are executed first.
  • the EES determines the application server based on the application server type, and according to the determination result, the EES determines not to pre-execute the routing influence.
  • the EES determines that the application server is an expected application server according to the type of the application server, and according to the determination result, the EES determines to pre-execute the routing influence.
  • the EES determines the application server based on the response time of the service key performance indicator, and the EES determines that the routing is not affected in advance.
  • the EES determines that the application client has a higher requirement on the delay according to the delay requirement of the application client, and the EES determines that pre-execution routing affects.
  • the EES determines that the application client does not have high requirements on the delay according to the delay requirement of the application client, and the EES determines that the routing impact is not performed in advance.
  • EES saves a preset delay threshold. After receiving the request message sent by EEC, EES obtains the delay requirement of the application client. When the delay requirement is less than the delay threshold, EES judges that the application client The end performs routing influence in advance, and when the delay requirement is greater than the delay threshold, EES judges not to perform routing influence in advance for the application client.
  • the EES determines that the EAS discovery request message is a pre-executed EAS discovery request, and the EES determines that it is the application client corresponding to the EAS discovery request message or the EAS discovery request message according to the determination result.
  • the terminal device corresponding to the message performs routing influence in advance.
  • the EES may also determine whether to pre-execute the routing influence according to the method described in S505.
  • the detailed determination method refer to S505, which will not be repeated here for brevity.
  • the EES may execute the EAS discovery process shown in FIG. 2 to determine one or more candidate EASs, and the one or more candidate EASs may form a candidate EAS list.
  • the EES may select one or more EASs from the candidate EAS list, and request the SMF or NEF to perform routing influence for the one or more EASs.
  • EES Before EES sends the message triggering the implementation of routing influence, it first judges whether the application client executes routing influence in advance according to the relevant information of the application client’s own attributes. It is beneficial to improve the service efficiency and service quality of the edge data network, improve the efficiency of terminal equipment to obtain application services, and improve the user experience of terminal equipment users.
  • the EES determines not to pre-execute the routing impact for the application client according to the determination result of not pre-executing the routing impact for the same application client.
  • S606 and S607 may not be executed any more.
  • the EES saves the judgment result of not performing routing impact in advance.
  • the EES may send indication information to the EEC indicating that the routing impact has not been pre-executed.
  • indication information refer to the description of the embodiment shown in FIG. 14 later, and will not be described in detail here.
  • the EES sends an EAS discovery response message to the EEC.
  • the EAS discovery response message is used to return the candidate one or more EAS information to the EEC, and the one or more EAS information can also be discovered through the EAS subscription response message or through the EAS discovery subscription update response message or The EAS discovery notification message is sent, and the specific bearer message is not limited in this application.
  • the EES when one or more discovered EASs meet the application service requirements of the application client, the EES sends an EAS discovery notification message to the EEC, and the EAS discovery notification message includes information about one or more EASs that meet the requirements.
  • multiple candidate EASs constitute a candidate EAS list
  • the EAS discovery response message includes the candidate EAS list
  • the EES may send an EAS discovery response message to the EEC, and the EAS discovery response message further includes indication information for indicating whether the routing impact has been requested from the SMF or the NEF.
  • the EES Before the EES sends the EAS Discovery Response message, the EES has requested to perform the routing influence, and the indication information contained in the EAS Discovery Response message indicates that the routing influence has been requested to the SMF or NEF; before the EES sends the EAS Discovery Response message, the EES has not requested the execution of the routing influence. Then the indication information included in the EAS discovery response message indicates that no request has been made to the SMF or the NEF for routing impact.
  • the EES judges whether the path optimization of the EAS is completed, and the EES returns the EAS with the optimized user plane path to the EEC, so that the EEC can further return the EAS with the optimized user plane path to the application client.
  • the EES returns the EAS information with the optimized user plane path and/or the DNAI information of the EAS to the EEC.
  • the application client obtains an optimized user plane path, which is conducive to improving the efficiency of the application client to obtain the application service provided by the application server, and is conducive to improving the application experience of the terminal device user.
  • the EAS discovery response message further includes indication information of whether the EAS has an optimized user plane path, or includes indication information of whether the EAS route influence is completed, or whether the EAS user plane path optimization is completed instructions for the .
  • the EES returns the information of the EAS and the DNAI information to the EEC, where the DNAI information includes one or more DNAIs and indication information, where the indication information is used to indicate whether the one or more DNAIs have an optimized user plane path.
  • the one or more DNAIs may be expressed in the form of a DNAI list, and the indication information may be included in the DNAI list.
  • the application client After the application client obtains the indication information indicating whether the EAS has an optimized user plane path, it can select an EAS connection with an optimized user plane path according to the indication information and obtain application services. service efficiency.
  • the EEC judges whether to initiate the EAS discovery process in advance according to one or more of the type of the application client, the delay requirement of the application client, and the type of the application server. Further, the EES receives the EAS sent by the EEC After discovering the request message, determine whether to trigger the execution of the routing influence process immediately, so that SMF or NEF performs routing influence for the candidate EAS so that it has the DNAI of the optimized path, or determines that the candidate EAS already has the DNAI of the optimized path so that it does not need to be executed for the EAS routing impact.
  • FIG. 8 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the EEC determines to pre-execute the EAS discovery according to the indication information of the application client, and the EES determines to pre-execute the routing influence for the application client according to the indication information of the EEC.
  • the EEC determines to trigger the execution of EAS discovery in advance.
  • the EAS used to provide application services has been registered on the EES and stored on the EES, or EAS-related information (such as DNAI information) has been pre-configured on the EES.
  • the indication information may include a pre-execution EAS discovery indication and/or a pre-execution routing impact indication.
  • the indication information indicates the pre-execution of the EAS discovery
  • the EEC determines to pre-trigger the execution of the EAS discovery according to the indication information of the pre-execution of the EAS discovery.
  • the indication information indicates pre-execution of routing influence
  • the EEC determines to pre-trigger execution of EAS discovery according to the indication information of pre-execution of routing influence.
  • the EEC acquires the indication information of the application client by receiving a message sent by the application client to the EEC (for example, a message for requesting to discover the EAS).
  • the EEC obtains the indication information of the application client through other means.
  • the application client may send the above indication information to the enabling client, or carry the above indication information in the configuration file of the application client, or send the above indication information to the enabling client
  • the above indication information is carried in the request message sent by the terminal that requires edge computing services.
  • the EEC can also determine whether to pre-execute routing influence according to the indication information.
  • the indication information indicates the pre-execution of the EAS discovery
  • the EEC determines, according to the indication information of the pre-execution of the EAS discovery, that the pre-trigger execution of the routing is affected.
  • the indication information indicates the pre-execution of the routing influence
  • the EEC determines to pre-trigger the execution of the routing influence according to the indication information of the pre-execution of the routing influence.
  • the EEC determines to pre-execute the routing influence according to the indication information, and according to the judgment result of the pre-execution routing influence, the EEC determines to pre-execute the EAS discovery.
  • EEC responds to the instruction information of the application client and immediately triggers the execution of EAS discovery, which can enable EEC to serve application clients in different operating states, which is conducive to improving the overall efficiency of EEC in providing services for different application clients and improving the user experience of terminal equipment .
  • the EEC sends an EAS discovery request message to the EES.
  • the EAS discovery request message is used to request the discovery of one or more EASs to provide application services for the application client.
  • the discovery request can also be implemented through messages such as EAS discovery subscription request messages or EAS discovery subscription update request messages.
  • EAS discovery subscription request messages or EAS discovery subscription update request messages.
  • the embodiments of this application are specific to Bearer messages are not limited.
  • the EAS discovery request message further includes at least one of the following information: EAS discovery filter parameters, terminal device location information, terminal device specific service information, and ECSP policy.
  • the EES may determine a candidate EAS according to at least one piece of information in the EAS discovery request message.
  • the EAS discovery request message includes EAS discovery filter parameters and indication information indicating the influence of pre-execution routing.
  • a delay requirement-related information element is added in the EAS discovery request message, and the information element is used to store indication information.
  • the existing cell storage indication information is used in the EAS discovery request message.
  • the indication information may be carried in the EAS discovery filter parameters, or in the feature list of the application client, or in the configuration file of the application client in the feature list of the application client, or in the EAS feature list, or in the EAS feature list in the EAS configuration file.
  • the EAS discovery request message includes EAS discovery filtering parameters and indication information indicating that the EAS discovery is performed in advance.
  • the EAS discovery request message includes EAS discovery filter parameters, indication information indicating the impact of pre-execution routing, and indication information indicating pre-execution of EAS discovery.
  • the EES may select one or more candidate EASs.
  • the EAS may be selected according to EAS discovery filter parameters, and/or location information of the terminal device, and specific service information of the terminal device, and/or ECSP policy.
  • EAS discovery filter parameters and/or location information of the terminal device, and specific service information of the terminal device, and/or ECSP policy.
  • specific EAS discovery process reference may be made to the relevant description in FIG. 2 , and details are not repeated here.
  • the EES determines to execute the routing influence immediately according to the indication information of the pre-executed routing influence included in the EAS discovery request message.
  • the EES determines to execute the route impact immediately according to the indication information of pre-executing the EAS discovery included in the EAS discovery request message.
  • the EAS discovery request message includes indication information for pre-execution of EAS discovery and indication information for pre-execution of route impact.
  • the directive information determines the pre-execution routing impact.
  • the EES determines, according to the EAS discovery request message, that the request message is a request message for performing EAS discovery in advance, and according to the determination result, the EES determines that the routing influence is performed immediately.
  • the instruction information of the application client it is determined to execute the routing immediately.
  • the request of the application client that sends the instruction information can be processed first, which is conducive to improving the service quality of EES and improving the edge Service efficiency of data networks.
  • the EES may also determine whether to pre-execute routing influence according to the method described in S505.
  • S505 For a detailed determination method, refer to S305, which will not be repeated here.
  • the EES may also send indication information to the selected EAS to trigger the execution of the route impact, where the indication information is used to instruct the selected EAS to trigger the execution of the route impact for the EAS.
  • the EES trigger execution route impact reference may be made to the relevant description of the embodiment shown in FIG. 5 .
  • the selected EAS can be determined by the EES, or can be determined by the EEC and then reported to the EES, or determined by the application client and then reported to the EEC, and the EEC then reports to the EES.
  • the EES sends an EAS discovery response message.
  • S705 and S607 are similar, for details, please refer to S607, which will not be repeated here.
  • the EEC judges to initiate the EAS discovery process in advance according to the indication information of the application client. Further, the EES judges and executes the routing influence process in advance according to the indication information of the application client, thereby triggering the SMF or NEF to execute the EAS user plane path.
  • the optimization of either SMF or NEF determines that EAS already has an optimized path for DNAI and does not need to perform routing effects.
  • FIG. 9 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the application client determines to request the EEC in advance to trigger EAS discovery according to the application information.
  • the request message sent by the application client to the EEC includes application information and indication information.
  • the EEC determines whether to Execute EAS discovery in advance, and the EES determines whether to perform routing impact in advance according to the EAS discovery message of the EEC.
  • S801 and S802 are the process of the EAS registering on the EES. This process is similar to S601 and S602. For details, please refer to S601 and S602. For the sake of brevity, details are not repeated here.
  • the application client determines whether to pre-execute EAS discovery and/or pre-execute route influence.
  • the application client determines to initiate EAS discovery in advance according to the application type of the application client.
  • the application client judges the routing influence in advance according to the application type of the application client.
  • the application client determines to initiate EAS discovery in advance according to the delay requirement of the application client.
  • the application client judges the routing impact in advance according to the delay requirement of the application client.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the application client determines to initiate EAS discovery in advance according to the application server type of the application client.
  • the application client judges the routing influence in advance according to the application server type of the application client.
  • the application client sends a first request message to the EEC.
  • the first request message includes application information and indication information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement, etc.
  • the indication information includes pre-execution EAS discovery indication and/or Pre-execute routing impact indication.
  • the EAS discovery request message is used to trigger EEC to perform service provisioning and EAS discovery.
  • One or more of the application type, application server type, or delay requirements that can be included in the application information can be configured on the EEC in a pre-configured manner, or can be sent by the application client to the EEC by sending a message To the EEC, or to be acquired by the EEC in other more ways, this application does not limit the way that the EEC can acquire the information contained in the application information.
  • the one or more items of information that are not included can be configured to EEC in a pre-configured manner, so that EEC can combine the information obtained through multiple channels
  • the content of the application information and the instruction information are used to make a comprehensive judgment.
  • the EEC determines whether to perform EAS discovery in advance.
  • Executing EAS discovery is to determine the EAS that is suitable for providing application services for the application client and the access method of the EAS.
  • executing EAS discovery in advance means executing EAS before the application client starts or before the application client interacts with the EAS. Discover.
  • the EEC determines to execute the EAS discovery in advance according to comprehensive judgment of the application information and the indication information.
  • the application type and/or latency requirements in the application information show that the application client does not execute EAS in advance Discovery, but the indication information indicates to perform EAS discovery in advance.
  • the EEC determines to perform EAS discovery in advance for the application client after completing an independent judgment according to the application information and the indication information.
  • Combining application information and instruction information to comprehensively judge whether to perform EAS discovery in advance is conducive to improving the adaptability of EEC in complex service environments (such as different application clients and different service requirements), and is conducive to improving the quality of service provided by terminal equipment to users , to improve the user's application service experience.
  • the EEC comprehensively judges and determines the impact of pre-execution routing according to the application information and indication information, and determines the pre-execution of EAS discovery according to the judgment result of pre-execution routing impact.
  • the content of the EEC determining the influence of pre-execution routing can refer to S503, and for the sake of brevity, details are not described here.
  • the EEC sends an EAS discovery request message to the EES.
  • the EAS discovery request message includes application information and/or indication information.
  • the EAS discovery request message also includes one or more of the following information: EAS discovery filter parameters, terminal device location information, terminal device specific service information or ECSP policy, after receiving the EAS discovery request message, the EES A candidate EAS may be selected according to at least one item of the above information in the EAS discovery request message.
  • the EAS discovery request message further includes indication information for indicating that the EAS discovery request is a pre-executed EAS discovery request.
  • the EES determines whether to immediately trigger the execution of routing influence.
  • the EES comprehensively judges and determines whether to immediately trigger the execution of the routing impact according to the application information and the indication information.
  • the application type and/or delay requirements in the application information show that the application client does not pre-execute the routing impact, but the indication information requests the pre-execution of the routing impact.
  • the EES completes the independent After judging, it is determined to pre-execute routing influence for the application client.
  • the EES may select one or more candidate EASs according to one or more of the following information: EAS discovery filter parameters, terminal device location information, terminal device specific service information or ECSP policy.
  • One or more candidate EASs can form a candidate EAS list, and the EES can select one or more EASs in the candidate EAS list, and trigger the SMF or NEF to perform routing influence for the one or more EASs.
  • the EES receives the application information and the indication information for pre-triggering the execution of EAS discovery. EAS found.
  • the EES receives the application information and the indication information of pre-triggered execution of routing impact, and the EES directly determines the pre-execution of EAS discovery and routing impact according to the indication information of pre-triggered execution of routing impact.
  • Combining application information and instruction information to comprehensively judge whether to perform EAS discovery in advance is conducive to improving the adaptability of EES in complex service environments (such as different application clients and different service requirements), and is conducive to improving the edge data network for application clients.
  • the quality of service is conducive to improving the efficiency of application clients to obtain application services.
  • the EES sends an EAS discovery response message.
  • the EES performs EAS discovery in advance, and the discovery response message includes information of one or more EASs.
  • EES pre-triggers the execution of EAS discovery and route impact
  • the discovery response message includes Including the information of one or more EASs and/or the indication information that the routing impact has been triggered for the one or more EASs.
  • the EAS discovery response message may also include indication information that the routing impact of the one or more EASs has been completed.
  • the EEC sends a first response message to the application client.
  • the first response message is used to send candidate EAS information to the application client.
  • the EEC selects an EAS that triggers the routing impact from the candidate EASs and sends it to the application client.
  • the EAS also carries the EAS that has triggered the routing impact in the information of the selected EAS. instructions for the .
  • the EEC selects an EAS that has completed the routing impact from the candidate EASs and sends it to the application client.
  • the EEC also carries an indication that the EAS has completed the routing impact in the information of the selected EAS. information.
  • the EEC returns the EAS information with the optimized user plane path and/or the DNAI information of the EAS to the application client.
  • the EEC does not screen the candidate EAS, and the EEC sends one or more EAS information to the application client through the first response message, and the first response message also includes information about whether the EAS has completed routing. Instructions.
  • the EEC returns the EAS information and the DNAI information to the application client, where the DNAI information includes one or more DNAIs and indication information, where the indication information is used to indicate whether the one or more DNAIs have an optimized user plane path.
  • the one or more DNAIs may be represented in the form of a DNAI list, and the indication information may also be included in the DNAI list.
  • the application client detects whether the returned EAS has completed routing.
  • the application client sends the selected EAS to the EEC, and requests to obtain indication information of whether the selected EAS completes the routing impact.
  • the first response message includes indication information of whether the candidate EAS has completed the routing influence (such as DNAI information of the EAS), and the application client determines whether the selected EAS has completed the routing influence according to the indication information.
  • the application client sends a message requesting to implement routing influence to the EAS.
  • the application client after the application client receives the EAS discovery response message, it detects that the returned EAS does not have an optimized user plane path. Before starting, send a connection request message to the selected EAS, the connection request message includes the UE ID, and the EAS triggers the execution of routing effects after receiving the connection request message.
  • the application client can directly connect to the EAS and request the EAS to directly trigger the execution of routing effects.
  • this technical solution provides another way for the application client to obtain application services, which is conducive to improving the stability of the application client to obtain application services sex.
  • the application client sends a message to the EEC requesting to perform routing influence.
  • the message requesting to perform routing influence may include application information and/or indication information, and after receiving the message, the EEC may determine whether to perform routing influence in advance according to the application information and/or indication information.
  • the specific determination process reference may be made to S503, which is not repeated here for the sake of brevity.
  • the message requesting to execute routing impact may also carry identification information, which is used to identify the target EAS requesting to execute routing impact as the EAS discovered by the pre-executed EAS discovery process, and the EEC determines after obtaining the identification information Pre-trigger execution routing influence for the target EAS.
  • the EEC saves the information of the EAS discovery process for obtaining the target EAS, and the EEC can identify the target EAS to determine that the EAS is the EAS discovered by the pre-executed EAS discovery process, and then determine to trigger the execution of routing for the target EAS in advance Influence.
  • the EEC After the EEC determines to trigger the execution of routing influence for the target EAS in advance, it reports the relevant information of the target EAS to the EES.
  • the EAS sends a message requesting to execute routing influence, and the target EAS triggers the execution of routing influence.
  • the application client when the application client determines that the selected EAS has the DNAI of the optimized user plane path, it may not need to request the selected EAS to perform routing influence.
  • the application client determines whether to execute the EAS discovery in advance or route impact according to the type of the client or the delay requirement of the application client, and the EEC judges whether to initiate the EAS discovery process in advance according to the application information and indication information. Further, The EES judges whether to immediately trigger the execution of the routing influence process according to the application information and/or indication information, that is, determines whether to trigger the SMF or NEF to execute the routing influence, or determines whether the target EAS has an optimized user plane path.
  • FIG. 10 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the EEC comprehensively determines whether to perform EAS discovery in advance according to the application information and the instruction information.
  • the EES route will directly feed back the candidate EAS to the EEC, and the EEC will select the EAS from the candidate EAS and send it To EES, and request EES to perform routing influence for the selected EAS, EES will determine after receiving the selected EAS related information (such as application server type, etc.) reported by EEC or receiving the reporting event of the selected application server information Whether to pre-enforce routing influence.
  • S901 and S902 are the process of the EAS registering on the EES. This process is similar to S601 and S602. For details, please refer to S601 and S602. For the sake of brevity, details are not repeated here.
  • S903 and S904 are similar to S805 and S806 respectively.
  • S805 and S806 For details, please refer to S805 and S806.
  • S805 and S806 For brevity, details are not repeated here.
  • the EES sends an EAS discovery response message to the EEC.
  • the EES may not be configured with a function of judging whether to pre-execute routing influence according to application information and/or indication information.
  • the EES performs EAS discovery after receiving the EAS discovery request message from the EEC, and feeds back the information of one or more candidate EASs to the EEC.
  • the one or more pieces of EAS information may also be sent through an EAS Discovery Subscription Response message or through an EAS Discovery Subscription Update Response message or an EAS Discovery Notification message, and this application does not limit specific bearer messages.
  • the EES when one or more discovered EASs meet the application service requirements of the application client, the EES sends an EAS discovery notification message to the EEC, and the EAS discovery notification message includes information about one or more EASs that meet the requirements.
  • the EEC selects a target EAS.
  • the target EAS may also be referred to as a selected EAS, which refers to an EAS selected from one or more obtained candidate EASs for providing application services to the application client.
  • the EEC selects a target EAS.
  • the target EAS can also be determined by the enabling server or the application client.
  • the application client can report the selected EAS to the EEC.
  • the EEC After receiving the EAS selected by the application client, the EEC Then report the selected EAS to the EES.
  • the EEC determines whether to perform routing influence in advance according to the application information and the indication information.
  • the application information includes one or more of the following information: application type, application server type, and delay requirement.
  • the indication information includes a pre-execution EAS discovery indication and/or a pre-execution routing impact indication.
  • the EEC determines to pre-trigger execution of the routing impact according to the indication information of the application client.
  • the EEC determines the pre-execution routing influence according to the application information of the application client.
  • the EEC determines in advance to trigger the execution of the EAS discovery in combination with the application information and the indication information.
  • the application type and/or delay requirements in the application information show that the application client does not pre-execute routing influence, but the indication information requests pre-execution of routing impact.
  • the EEC completes the independent After judging, it is determined to pre-execute routing influence for the application client.
  • EEC can judge whether the request of the application client executes the routing influence in advance, and also judges whether the request of the application client executes the routing influence in advance. After obtaining the candidate EAS information, request EES to trigger the execution of the routing effect of the selected EAS. This technical solution is conducive to improving the stability of the application service provided by the edge data network for the application client, and is conducive to improving the experience of the application client in obtaining the application service.
  • the EEC sends an instruction message to the EES to perform routing influence for the target EAS.
  • the indication message includes target EAS information and one or more DNAIs that can access the target EAS.
  • the indication message may further include indication information and/or application information of pre-execution routing influence.
  • the EEC first sends the target EAS information and one or more DNAIs for accessing the target EAS to the EES, and then judges the impact of pre-execution routing according to the application information and/or indication information, and according to the judgment result, the EEC then sends the EES sends indication information of pre-execution routing impact.
  • the target EAS can also be referred to as the selected EAS, and the target EAS information can be carried in the selected EAS declaration (selected EAS declaration) message, or can also be carried in other messages, which is not limited in this application.
  • the selected edge application server report message may also include application information and/or indication information, and after receiving the selected edge application server report message, the EES may determine whether to perform routing influence for the selected EAS in advance. For the determination process, reference may be made to S505, which will not be repeated here.
  • the EES determines whether to perform routing influence in advance.
  • the EES determines whether to pre-execute the application server according to the information of the selected application server reported by the EEC routing impact.
  • the EES determines the influence of pre-execution routing after a reported event based on the information of the selected application server reported by the EEC.
  • the EES obtains the reported event of the selected application server reported by the EEC, it immediately triggers to pre-execute the routing influence for the selected application server.
  • the reported information or reported event of the terminal device is used as the judgment basis for EES to determine whether to execute the routing impact in advance.
  • the judgment basis can be generated by the terminal device, and the judgment process is executed by the edge data network.
  • the implementation of this technical solution is conducive to the process management of the edge data network for different terminal equipment to obtain application services, to improve the efficiency of the edge data network to provide application services, to maintain the stability of the edge data network services, and to improve the terminal equipment acquisition.
  • the efficiency of application services helps to reduce the waste of network resources.
  • the EES sends a confirmation message to the EEC.
  • This confirmation message is used to indicate that routing influence has been performed for the selected EAS.
  • the confirmation message is also used to indicate whether the route influence of the selected EAS is completed.
  • the EEC judges to initiate the EAS discovery process in advance according to the indication information and/or application information of the application client.
  • EES triggers the execution of routing based on the reported selected EAS information or the reported event of the selected EAS, which affects the optimization of the user plane path for the target EAS, or determines that the target EAS has the DNAI of the optimized user plane path so that there is no need to perform routing Influence.
  • FIG. 11 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the application client determines whether to pre-execute routing influence after executing the EAS discovery process according to the application type, application server type, or delay requirement.
  • S1001 and S1002 are the process of the EAS registering on the EES. This process is similar to S601 and S602. For details, please refer to S601 and S602. For brevity, details are not repeated here.
  • the EEC determines whether to perform EAS discovery in advance.
  • S1003 The content of S1003 is similar to that of S603, for details, refer to S603, and for the sake of brevity, details are not repeated here.
  • the EEC may also determine whether to perform EAS discovery in advance according to the application information and/or indication information.
  • the application information and/or indication information may be sent by the application client to the EEC, that is, a step of the EEC receiving the application information and/or indication information from the application client may also be included before S1003.
  • the EEC sends an EAS discovery request message to the EES.
  • S1004 The content of S1004 is similar to that of S604. For details, reference may be made to S604. For the sake of brevity, details are not repeated here.
  • the EES sends an EAS discovery response message to the EEC.
  • S1005 The content of S1005 is similar to that of S607. For details, refer to S607. For brevity, details are not repeated here.
  • the EEC sends a first response message to the application client.
  • S1006 The content of S1006 is similar to that of S810. For details, reference may be made to S810. For the sake of brevity, details are not repeated here.
  • the application client judges whether to request the EAS in advance to perform routing influence.
  • the application client determines the effect of executing routing in advance according to the delay requirement of the service.
  • the application client determines not to perform routing impact in advance according to the delay requirement of the service.
  • the application client determines the effect of routing in advance according to the type of the application client.
  • the application client determines not to perform routing influence in advance according to the type of the application client.
  • the application client determines the effect of routing in advance according to the type of the application server.
  • the application client determines not to perform routing influence in advance according to the type of the application server.
  • the application client determines the effect of routing in advance according to one or more of the following information: service type, application client type, application server type, or delay requirement.
  • the application client determines not to perform routing impact in advance according to one or more of the following information: service type, application client type, application server type, or delay requirement.
  • the application client determines the effect of routing in advance according to the judgment result saved in S1003.
  • the application client sends a query message to the EEC, so as to obtain the indication information of whether one or more application servers have completed the routing influence, and the application client determines whether to pre-execute the routing after determining whether the application server has completed the routing influence. Influence.
  • the application client sends an execution route influence request message to the EAS.
  • the application client sends a request to the selected EAS to trigger execution of routing impact indication information, and the selected EAS may be determined by the application client, or by the EEC or EES.
  • S1008 is similar to that of S812. For details, refer to S812. For the sake of brevity, details are not repeated here.
  • the application client can judge by itself after obtaining the connection mode of the candidate EAS Whether to pre-execute routing influence, when it is necessary to pre-execute routing influence, the application client can directly request the target EAS to trigger and execute a request to perform routing influence for the target EAS.
  • the technical solution is conducive to improving the stability of the application client to obtain the application service, and to improving the quality and efficiency of the application client to obtain the application service.
  • the EAS triggers and executes the routing influence.
  • the application client determines the selected EAS, it can directly request the selected EAS to trigger the implementation of routing influence, or the application client can also report the selected EAS to the EEC, and finally the EES triggers or the EES requests the selected EAS.
  • the specified EAS triggers the implementation of routing effects.
  • the EAS sends a confirmation message to the application client.
  • the EAS after receiving the target DNAI information sent by the SMF or NEF, the EAS determines that the EAS has an optimized user plane path, and the EAS sends a confirmation message to the application client, and the confirmation message indicates that the returned EAS has an optimized user plane path. path.
  • the application client after executing the EAS discovery process, the application client obtains the candidate EAS list, and before the application client needs to obtain the application service, it judges the impact of pre-execution routing according to the application type or the application client's demand for delay, so that Trigger EAS to pre-execute routing effects.
  • FIG. 12 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the ECS determines whether to pre-execute routing influence according to the application information and/or indication information, and the routing influence is used to establish an optimized user plane path between the UE-EES.
  • the EES sends an EES registration request message to the ECS.
  • the registration request message is used to request to register the EES on the ECS, and the registration request message may include the EES configuration file
  • An EES profile the EES profile includes a DNAI list, and a terminal device or an application client can access the EES through the DNAI in the DNAI list.
  • the EES sends an EES registration update request message to the ECS, where the EES registration update request message is used to request to update the registration information of the EES already registered on the ECS.
  • the DNAI information of the EES can be directly included in the registration request message.
  • EES-related information (such as EES DNAI information) may also be pre-configured on the ECS.
  • the ECS sends a registration response message to the EES.
  • the registration response message is used to indicate whether the registration of the EES is successful.
  • the ECS receives the registration update request message sent by the EES, the ECS sends an EES registration update response message to the EES.
  • the registration response message may include: the ID of the EES registration, and the expiration time of the EES registration.
  • the registration response message may include reason information for the EES registration failure.
  • the application client determines whether to pre-execute EES discovery and/or pre-execute route influence.
  • the application client determines to initiate EES discovery in advance according to the application type of the application client, and the application client may request the EEC to discover the EES in advance.
  • the application client determines the routing influence in advance according to the application type of the application client, and the application client may request the EEC to discover the EES in advance.
  • the application client determines to initiate EES discovery in advance according to the delay requirement of the application client, and then the application client requests the EEC to discover the EES in advance.
  • the application client judges the routing impact in advance according to the delay requirement of the application client, and the application client may request the EEC to discover the EES in advance.
  • the delay requirement may be the delay requirement of the first packet or the delay requirement of the application client or the delay requirement of the application server required by the application client.
  • the first packet refers to the first data packet sent by the application client to the application server during the communication process between the application client and the application server, that is, the first data packet in the data exchange between the application client and the application server.
  • the delay requirement of the first packet may be used to indicate the overall delay requirement or average delay requirement of all data packets during data interaction between the application client and the application server.
  • the delay requirement of the first packet can also be used to indicate the characteristic value of the delay requirement of some or all data packets within a specific period of time during the data interaction process between the application client and the application server.
  • the application client The arithmetic mean or geometric mean of all data packet delay requirements during the first interaction with the application server.
  • the application client determines to initiate EES discovery in advance according to the application server type of the application client, and then the application client requests the EEC to discover the EES in advance.
  • the application client determines the routing influence in advance according to the application server type of the application client, and the application client may request the EEC to discover the EES in advance.
  • the application client does not judge whether to pre-execute EES discovery and/or pre-execute routing influence, and this judgment can be performed by EEC, that is, S1103 is optional.
  • the application client sends a first request message to the EEC.
  • the first request message includes application information and/or instruction information
  • the application information includes one or more of the following information: application type, application server type, or delay requirement, etc.
  • the instruction information includes pre-executed EES discovery instruction display and/or pre-execute route impact indication.
  • the application information of the application client is pre-configured to the EEC, and the application client does not send the first request message to the EEC, that is, S1104 is optional.
  • One or more of the application type, application server type, or delay requirements that can be included in the application information can be configured on the EEC in a pre-configured manner, or can be sent by the application client to the EEC by sending a message To the EEC, or to be acquired by the EEC in other more ways, this application does not limit the way that the EEC can acquire the information contained in the application information.
  • the one or more items of information that are not included can be configured to EEC in a pre-configured manner, so that EEC can combine the information obtained through multiple channels
  • the content of the application information and the instruction information are used to make a comprehensive judgment.
  • the EEC determines whether to perform EES discovery in advance.
  • the purpose of performing EES discovery is to determine the EES suitable for providing services for the terminal device and the access mode of the EES.
  • Pre-execution of EES discovery refers to the execution of EES discovery before the application client is started or before the terminal device has data interaction with EES. Pre-execution can also be called early execution or immediate execution.
  • the EES suitable for providing services for the terminal device determined through the EES discovery process may be called a candidate EES, and the specific EES discovery process may refer to the relevant description in FIG. 3 .
  • the EEC may determine whether to perform EES discovery in advance according to application information, where the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the EEC may also determine whether to pre-execute EES discovery according to the indication information, where the indication information includes an indication of pre-execution of EES discovery and/or an indication of pre-execution of routing impact.
  • the EEC may also determine whether to perform EES discovery in advance according to the application information and the indication information.
  • the EEC may also determine, according to the application information and/or indication information, that pre-execution of the route affects, and according to the judgment result, the EEC determines that the EES discovery is pre-execution.
  • EEC determining whether to pre-execute EES discovery according to application information and/or indication information is similar to the content of EEC determining whether to pre-execute EAS according to application information and/or indication information.
  • S304, S603, S501, and S805. For brevity I won't repeat them here.
  • S1106 to S1110 may not be performed any more.
  • the EEC saves the judgment result of not performing EES discovery in advance.
  • the EEC may send indication information to the application client that EES discovery has not been performed in advance.
  • This part of the content is similar to the description of the embodiment shown in FIG. 15 below. For details, refer to the embodiment shown in FIG. 15. No detailed introduction.
  • the EEC Before sending the EES discovery request message, the EEC first judges whether to execute the EES discovery in advance. The judgment is based on the attributes of the application client itself and/or the information about the operating status of the terminal device. The execution of this judgment can make the EEC be
  • the service of the application client can provide differentiated services according to the different application clients and different operating states, which is conducive to improving the service efficiency of the terminal equipment, facilitating the rational allocation of resources of the terminal equipment, and improving the user's application experience.
  • the EEC sends a service provision request message to the ECS.
  • the service provision request message is used to request to discover one or more EESs to provide services for the terminal device.
  • the service provision request can also be carried in the EES discovery subscription request message or the EES discovery subscription update request message.
  • the embodiment of the application does not limit the specific bearer message.
  • the service request message includes one or more of the following information: location of the terminal device, service requirement, service preference or connectivity.
  • the ECS may determine one or more EESs that can provide services for the terminal device according to one or more of the foregoing information.
  • the service request message includes the application client type.
  • the service request message includes an application client configuration file
  • the application client configuration file includes an application client type
  • the service provision request message includes information about the delay requirement of the application client.
  • a delay requirement-related information element is added in the service provision request message, and the information element is used to store the delay requirement of the application client.
  • the existing information element is used in the service provision request message to store the delay requirement of the application client.
  • the service provision request message includes the application server type.
  • the service provision request message includes one or more service key performance indicators that can determine the type of the application server.
  • the service provision request message includes at least one of the service key performance indicator parameters of the application server: connection bandwidth, request rate, response time, availability, required computing resources, image computing resources, memory resources and storage resources .
  • the service provision request message includes indication information indicating the effect of pre-execution of routing and/or indication information of pre-execution of EES discovery.
  • a delay requirement-related information element is added in the EAS discovery request message, and the information element is used to store indication information.
  • the existing cell storage indication information is used in the EES discovery request message.
  • the ECS determines whether to perform routing influence in advance.
  • routing effects can also be called early execution or pre-execution. Since routing effects are executed by SMF or NEF, execution here can be understood as trigger execution.
  • ECS determining whether to pre-execute routing according to application information and/or indication information is similar to that of EES determining whether to pre-execute routing according to application information and/or indication information. For details, refer to S505, S605, S503, and S803. For brevity, This will not be repeated here.
  • the content of the ECS-triggered execution of the routing influence is similar to that of the EES-triggered execution of the routing influence in Figure 4.
  • the ECS sends an application function request message to the SMF. Similar to the content of the application function request message sent by S301EES to the SMF in FIG. 4 , reference may be made to the relevant description in FIG. 4 for specific content, which will not be repeated here.
  • EES can also be used to trigger the execution of routing influence.
  • the content of EES triggering execution of routing influence is similar to the content of EAS triggering execution of routing influence in Figure 5.
  • EES sends
  • the content of the application function request message is similar to the content of the application function request message sent by the S401EAS to the SMF in Figure 5, and the specific content can refer to the relevant description in Figure 5, and will not be repeated here.
  • S1108 to S1110 may not be executed any more.
  • the ECS saves the judgment result of not performing routing impact in advance.
  • the ECS may send indication information to the EEC that the routing impact has not been pre-executed.
  • This part of the content is similar to the description of the embodiment shown in FIG. 14 below. For details, please refer to the embodiment shown in FIG. Details.
  • the ECS sends a service provision response message to the EEC.
  • the service provides a response message for returning one or more candidate EES information to the EEC, and the one or more EES information may also be sent through an EES Discovery Subscription Response message or through an EES Discovery Subscription Update Response message or an EES Discovery Notification message,
  • the specific bearer message is not limited in this application.
  • the ECS may send a service provision response message to the EEC, and the service provision response message further includes indication information for indicating whether the SMF or the NEF has been requested to implement routing impact.
  • the ECS Before the ECS sends the service provision response message, the ECS has requested to implement the routing influence, and the indication information contained in the service provision response message indicates that the routing influence has been requested to the SMF or NEF; before the ECS sends the service provision response message, the ECS has not requested the implementation of the routing influence, Then, the indication information included in the service provisioning response message indicates that no request has been made to the SMF or NEF for routing impact.
  • the ECS determines whether the path of the EES is optimized, and the ECS returns the EES with the optimized user plane path to the EEC, so that the EEC can further return the EES with the optimized user plane path to the application client.
  • the EES returns the EES information with the optimized user plane path and/or the DNAI information of the EES to the EEC.
  • the application client obtains an optimized user plane path, which is conducive to improving the efficiency of the application client to obtain the application service provided by the application server, and is conducive to improving the application experience of the terminal device user.
  • the service provision response message includes EES information and indication information of whether the EES has an optimized user plane path.
  • the ECS returns the information of the EES and the DNAI information to the EEC, where the DNAI information includes one or more DNAIs and indication information, where the indication information is used to indicate whether the one or more DNAIs have an optimized user plane path.
  • the one or more DNAIs may be expressed in the form of a DNAI list, and the indication information may be included in the DNAI list.
  • the application client After obtaining the indication information indicating whether the EES has an optimized user plane path, the application client can select an EES connection with an optimized user plane path according to the indication information and obtain application services. service efficiency.
  • the EEC sends a first response message to the application client.
  • the first response message is used to send one or more candidate EES information to the application client.
  • the EEC selects an EES that has completed routing impact from one or more EES candidates It is sent to the application client.
  • the first response message is also used to indicate that the EES has triggered the execution of routing impact.
  • the EEC returns the EES information with the optimized user plane path and/or the DNAI information of the EES to the application client.
  • the EEC does not screen the candidate one or more EES, and the EEC sends the one or more EES information to the application client through the first response message, and the first response message also includes one or more Indication information of whether multiple EES trigger execution routing impact.
  • the EEC returns the information of the EES and the DNAI information to the application client, where the DNAI information includes one or more DNAIs and indication information, where the indication information is used to indicate whether the one or more DNAIs have an optimized user plane path.
  • the one or more DNAIs may be represented in the form of a DNAI list, and the indication information may also be included in the DNAI list.
  • the first response message is also used to indicate whether one or more EESs have completed routing influence.
  • Fig. 12 shows a possible implementation situation in which the ECS triggers and executes the routing influence for the EES according to the judgment information
  • the application client, EEC or EES described in Fig. 4 to Fig. 11 triggers the execution of the routing influence for the EAS according to the judgment information
  • Fig. 12 shows a possible implementation situation in which the ECS triggers and executes the routing influence for the EES according to the judgment information
  • the application client, EEC or EES described in Fig. 4 to Fig. 11 triggers the execution of the routing influence for the EAS according to the judgment information
  • FIG. 13 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the EEC determines to perform EAS discovery in advance, and the EES determines not to perform route impact in advance according to application information.
  • the EEC determines whether to perform EAS discovery in advance.
  • the EEC sends an EAS discovery request message.
  • the EAS discovery request message sent by the EEC to the EES includes application information, and the application information includes one or more of the following information: application type, application server type, or delay requirement.
  • the EAS discovery request message may also include indication information for performing EAS discovery in advance.
  • the EES determines whether to perform routing influence in advance.
  • the EES determines not to perform routing impact in advance according to the application information included in the EAS discovery request message.
  • the EES saves the judgment result information of not executing the routing impact in advance.
  • the judgment result information includes one or more of the following information: the judgment result of not pre-executing the routing impact, the application client identifier, or one or more EAS information, and the one or more EASs are determined through the EAS discovery process.
  • the saved judgment result information of not pre-executing the routing influence is used by the EES to determine whether to pre-execute the routing influence for the same application client (target application client) next time.
  • the EES may no longer determine whether to pre-execute the routing impact according to the application information, and the EES may determine that it is not the target application based on the judgment result information of not pre-executing the routing impact.
  • Client pre-executes routing influence.
  • the EES receives the indication information sent by the EEC to pre-execute the routing impact for the target application client, the EES determines to pre-execute the routing impact.
  • the EAS discovery request message received by the EES and sent by the EEC includes indication information for pre-executing EAS discovery, and the EES pre-executes the EAS discovery process according to the indication information for pre-executing EAS discovery, and determines one or more for the target application client. Multiple EASs, the one or more EASs may also be referred to as candidate EASs.
  • the judgment result information may include information of one or more EASs.
  • the EES sends indication information to the EEC.
  • the indication information is used to indicate that the routing impact is not pre-executed, and the indication information may include one or more of the following information: the judgment result of not pre-executing the routing impact, the application client identifier, or one or more EAS information, the one The or multiple EASs are one or multiple EASs determined by the EES through the EAS discovery process.
  • the EEC can determine not to perform EAS discovery for the target application client in advance according to the received judgment result information, without determining according to the application information.
  • the application client identifier and information of one or more EASs the EEC can determine the selected EAS from the one or more EASs, and the EEC can send the selected EAS to the EAS.
  • the EAS reports to the EES, thereby triggering the EES to perform routing influence for the selected EAS.
  • the EEC may also send the information of the selected EAS to the application client, and after obtaining the information of the selected EAS, the application client may directly request the selected EAS to trigger the execution of routing influence.
  • the EEC may also send the information of one or more EASs to the application client, and the application client may determine the selected EAS from the one or more EASs, and then send the selected EAS to the EEC, and then The EEC requests the EES to trigger execution routing influence for this selected EAS.
  • the application client requests the selected EAS to trigger execution routing effects
  • the EEC saves the indication information, and the saved judgment result can be used for the next EEC judgment whether to pre-execute EAS discovery or route influence for the application client.
  • the EEC sends the judgment result of not pre-executing the routing impact to the application client, and the application client performs corresponding operations according to the judgment result of not pre-executing the routing impact.
  • the application client sends the indication information of pre-executing the routing impact to the EEC according to the judgment result that the routing impact is not pre-executed, indicating that the routing impact is pre-executed for the application client.
  • the application client may request the selected EAS to pre-execute the routing impact.
  • FIG. 14 is a schematic diagram of another method for requesting an application function provided by an embodiment of the present application.
  • the EEC determines not to pre-execute EAS discovery and/or not to pre-execute route impact according to the application information.
  • the EEC determines whether to pre-execute EAS discovery and/or pre-execute route influence.
  • the EEC determines whether to pre-execute EAS discovery and/or pre-execute routing.
  • the content is similar to the content of S501 in FIG.
  • the EEC saves the judgment result of not performing EAS discovery and/or not performing route impact in advance.
  • the EEC determines not to perform EAS discovery in advance according to the application information, the EEC can save the judgment result of not performing EAS discovery in advance, and the judgment result can be used for later EEC to determine whether to perform EAS discovery in advance for the same application client (target application client) and/or pre-execute routing effects.
  • the EEC sends indication information to the application client.
  • the indication information is used to indicate that the EAS discovery is not performed in advance, and the indication information may include a judgment result that the EAS discovery is not performed in advance.
  • the target application client performs corresponding operations according to the judgment result of not performing EAS discovery in advance.
  • the application client when the application client requests and/or subscribes to the judgment result from the EEC, the application client sends indication information to the application client after determining that the judgment result of EAS discovery is not performed in advance.
  • the target application client sends indication information of pre-execution of EAS discovery and/or pre-execution of routing influence to the EEC according to the judgment result of not pre-execution of EAS discovery.
  • the above Figures 2 to 14 are part of the embodiments provided by the present application, and those skilled in the art can also obtain new embodiments through the combination of steps between different embodiments or the adjustment of the execution order of steps, for example, the S605 in Fig. 7 can be combined with S903 in Fig. 12, S601 or S602 in Fig. 7 can be executed after S603, and S608 in Fig. 7 can be executed before S607.
  • the implementation obtained through the above methods is not listed in this application
  • these embodiments should also fall within the scope of protection claimed in this application.
  • this embodiment of the present application also provides a communication device, which can have the functions of the enabling server, enabling client, and application client in the above method embodiments, and can be used In executing the steps performed by the functions of the enabling server or the enabling client or the application client in the above method embodiments.
  • the functions described above may be realized by hardware, or may be realized by software or hardware executes corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device 1500 shown in FIG. 15 may serve as the enabling server involved in the foregoing method embodiments, and execute the steps performed by the enabling server in the foregoing method embodiments.
  • the communication device 1500 may include a transceiver unit 1510 and a processing unit 1520 , and the transceiver unit 1510 and the processing unit 1520 are coupled to each other.
  • the transceiver unit 1510 can be used to support the communication device 1100 to communicate, for example, execute S101, S103, S301, S504, S602, S604, S702, S705, S806, S908, and S1005 are the sending and/or receiving actions performed by the enabling server.
  • the processing unit 1520 can be used to support the communication device 1500 to execute the processing actions in the above method embodiments, for example, execute S102, S505, S605, S606, S703, S704 and S807 are processing actions performed by the enabling server.
  • the communication device 1500 shown in FIG. 15 may serve as the enabling client involved in the above method embodiment, and execute the steps performed by the enabling client in the above method embodiment.
  • the communication device 1500 may include a transceiver unit 1510 and a processing unit 1520 , and the transceiver unit 1510 and the processing unit 1520 are coupled to each other.
  • the transceiver unit 1510 can be used to support the communication device 1500 to communicate, for example, to execute S101, S103, S201, S203 in FIG. 2, FIG. 3, FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG. , S502, S504, S804, S807, S702, S705, S804, S806, S809, S810, S904, S905, S1004, S1005, S1008, S1010, S1104, S1106, S1109, and S1110, etc., are the sending and/or receiving actions performed by the enabling client.
  • the processing unit 1520 can be used to support the communication device 1500 to execute the processing actions in the above method embodiments, for example, execute S503, S603, S701, and S805 in FIG. 6, FIG. 7, FIG. 8, FIG. 9, FIG. 10 and FIG. 11, etc. , S903, and S1003 are processing actions executed by the enabling client.
  • the communication device 1500 shown in FIG. 15 may serve as the application client involved in the above method embodiment, and execute the steps performed by the application client in the above method embodiment.
  • the communication device 1500 may include a transceiver unit 1510 and a processing unit 1520 , and the transceiver unit 1510 and the processing unit 1520 are coupled to each other.
  • the transceiver unit 1510 can be used to support the communication device 1500 to communicate, for example, to perform the sending and receiving performed by the application client such as S501, S804, S810, S1006, S1103 and S1303 in FIG. 6, FIG. 9, FIG. /or received action.
  • the application client such as S501, S804, S810, S1006, S1103 and S1303 in FIG. 6, FIG. 9, FIG. /or received action.
  • the processing unit 1520 can be used to support the communication device 1500 to execute the processing actions in the above method embodiments, for example, execute S501, S803, S811, S1007, and S1103 in FIG. 6, FIG. 9, FIG. 11, and FIG. The processing action performed.
  • the communication device 1500 shown in FIG. 15 may serve as the application server involved in the above method embodiment, and execute the steps performed by the application server in the above method embodiment.
  • the communication device 1500 may include a transceiver unit 1510 and a processing unit 1520 , and the transceiver unit 1510 and the processing unit 1520 are coupled to each other.
  • the transceiver unit 1510 can be used to support the communication device 1500 to communicate, for example, to execute S401, S402, S601, S602, S801, S802, S812, S901, S901 and S1010 in FIG. 5, FIG. 7, FIG. 9, FIG. 10 and FIG. Sending and/or receiving actions performed by the application server.
  • the processing unit 1520 may be configured to support the communication device 1500 to execute the processing actions in the above method embodiments, for example, execute S813 and S1009 in FIG. 9 and FIG. 11 and other processing actions executed by the application server.
  • the communication device 1500 shown in FIG. 15 may serve as the edge configuration server involved in the above method embodiment, and execute the steps performed by the edge configuration server in the above method embodiment.
  • the communication device 1500 may include a transceiver unit 1510 and a processing unit 1520 , and the transceiver unit 1510 and the processing unit 1520 are coupled to each other.
  • the transceiver unit 1510 can be used to support the communication device 1500 to communicate, for example, to perform the sending and/or receiving actions performed by the edge configuration server such as S201, S203, S1101, S1102, S1106 and S1109 in FIG. 3 and FIG. 12 .
  • the edge configuration server such as S201, S203, S1101, S1102, S1106 and S1109 in FIG. 3 and FIG. 12 .
  • the processing unit 1520 can be used to support the communication device 1500 to perform the processing actions in the above method embodiments, for example, to perform the processing actions performed by the edge configuration server such as S202, S1107, and S1108 in FIG. 3 and FIG. 12 .
  • the communication device 1500 may further include a storage unit 1530 for storing program codes and data of the communication device 1500 .
  • Fig. 16 is a schematic block diagram of a communication device 1600 provided by an embodiment of the present application.
  • the communication device 1600 includes: at least one processor 1610 and a transceiver 1620 .
  • the processor 1610 is coupled with the memory for executing instructions stored in the memory to control the transceiver 1620 to send signals and/or receive signals.
  • the communications device 1600 further includes a memory 1630 for storing instructions.
  • the above-mentioned processor 1610 and memory 1630 can be combined into one processing device, and the processor 1610 is used to execute the program codes stored in memory 1630 to realize the above functions.
  • the memory 1630 may also be integrated in the processing 1610 , or be independent of the processor 1610 .
  • the transceiver 1620 may include a receiver (or called receiver) and a transmitter (or called transmitter).
  • the transceiver 1620 may further include an antenna, and the number of antennas may be one or more.
  • the transceiver 1620 may be a communication interface or an interface circuit.
  • the chip When the communication device 1600 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit or a communication interface;
  • the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.
  • each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.
  • the embodiment of the present application further provides a computer-readable storage medium, on which computer instructions for implementing the method executed by the communication device in the above method embodiment are stored.
  • the computer program when executed by a computer, the computer can implement the methods performed by the communication device in the above method embodiments.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

本申请提供了一种请求应用功能的方法、装置和系统，该方法包括：使能服务器根据第一判定信息确定是否预先执行路由影响；当确定预先执行路由影响，该使能服务器预先发送应用功能请求消息，该应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。本申请提供的技术方案在触发执行路由影响前先根据应用信息或指示信息进行判断，根据判断结果再执行相应动作，有利于提高边缘数据网络为不同终端设备提供应用服务的效率，有利于提高终端设备获取应用服务的体验，有利于减少网络资源的浪费。

Description

请求应用功能的方法、装置和系统
本申请要求于2022年02月08日提交中国专利局、申请号为202210119272.8、发明名称为“请求应用功能的方法、装置和系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，更具体地，涉及一种请求应用功能的方法、装置和系统。
背景技术
独立组网(standalone，SA)6标准中定义了边缘使能服务器(edge enabler server，EES)平台的发现和边缘应用服务器(edge application server，EAS)的发现流程。通过EAS发现流程确定的EAS，边缘数据网络会为其向核心网请求触发执行路由影响(traffic influence)，执行EAS发现和/或执行路由影响的时机是值得考虑的。
发明内容
本申请提供一种请求应用功能的方法、装置和系统，可以用于确定触发执行应用服务器发现和/或执行路由影响的时机，有利于减少网络资源的浪费，有利于提高终端设备用户的体验。
第一方面，提供了一种请求应用功能的方法，包括：
使能服务器根据第一判定信息确定是否预先执行路由影响。
使能服务器在执行路由影响前先对是否预先执行路由影响进行判断，有利于边缘数据网络根据不同情况确定触发执行路由影响的时机。当确定预先执行路由影响，对于时延需求较高的应用客户端，可以在其与应用服务器有数据交互前为其完成用户面路径的优化，从而有利于降低应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验；当确定不预先执行路由影响，有利于减少预先为对时延要求不高或暂时不需要边缘计算服务的应用客户端优化用户面路径，从而有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于减少网络资源的浪费。
在一种可能的实现方式中：当确定预先执行路由影响，该使能服务器预先发送应用功能请求消息，该应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。
根据第一判断信息，使能服务器可以得到确定的判断结果，对于网络资源充足的边缘数据网络，使能服务器可以通过获取确定的判断结果，尽可能为更多的终端设备提供应用服务，有利于充分利用边缘数据网络的网络资源。对于对时延要求较高的应用客户端，由于预先为其执行了路由影响，应用客户端获取应用服务的时延能够得到降低，有利于提高终端设备用户的使用体验。
在另一种可能的实现方式中，当确定不预先执行路由影响，该使能服务器不预先发送 应用功能请求消息，该应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。
根据第一判断信息，使能服务器可以得到否定的判断结果，对于网络资源不够充足或比较紧张的边缘数据网络，使能服务器可以通过获取否定的判断结果，尽量减少为暂时不需要边缘计算服务的终端设备优化用户面路径，从而有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于预留网络资源或边缘数据网络资源，有利于保障已经接入的终端设备的应用服务质量，有利于提高边缘数据网络提供应用服务的稳定性。
在又一种可能的实现方式中，当确定不预先执行路由影响，该使能服务器保存不预先执行路由影响的判断结果。
使能服务器可以根据不预先执行路由影响的判断结果，确定下一次该使能客户端是否预先执行路由影响，无需再根据应用信息确定是否预先执行路由影响，有利于提高使能服务器判断是否预先执行路由影响的效率。
在又一种可能的实现方式中，当确定不预先执行路由影响，使能服务器将不预先执行路由影响的判断结果发送至使能客户端。
这里，不预先执行路由影响的判断结果又可以称为未预先执行路由影响的指示信息。
可选地，使能客户端保存不预先执行路由影响的判断结果。
使能客户端可以根据不预先执行路由影响的判断结果，确定下一次该应用客户端是否预先执行应用服务器发现和/或路由影响。
可选地，使能服务器还向使能客户端发送一个或多个应用服务器的信息，使能客户端根据该一个或多个应用服务器的信息确定选定的应用服务器。
可选地，使能服务器根据一个或多个应用服务器确定选定的应用服务器，使能客户端向应用客户端发送该一个或多个应用服务器的信息或选定的应用服务器的信息。
可选地，应用客户端可以根据一个或多个应用服务器的信息确定选定的应用服务器，从而请求选定的应用服务器触发执行路由影响。
可选地，使能客户端向使能服务器发送选定的应用服务器的信息。
根据上报选定的应用服务器的信息或者该上报事件，使能服务器可以确定是否预先触发执行路由影响，为使能服务器确定是否预先执行路由影响提供多种判断依据，有利于提高边缘数据网络为不同的终端设备或应用客户端提供服务，有利于提高终端设备获取边缘数据网络应用服务的稳定性。
可选地，应用客户端向选定的应用服务器发送触发执行路由影响的指示信息，该指示信息用于请求选定的应用服务器为该选定的应用服务器触发执行路由影响。
应用客户端可以直接请求选定的应用服务器触发执行路由影响，有利于提高应用客户端获取应用服务器提供的应用服务的效率。
可选地，应用客户端根据该不预先执行路由影响的判断结果向使能客户端发送预先触发执行应用服务器发现和/或预先执行路由影响的指示信息。
可选地，使能客户端向使能服务器发送预先执行应用服务器发现和/或预先执行路由影响的指示信息。
将不预先执行路由影响的判断结果发送至使能客户端，可以用于使能客户端判断下一次对于同一终端设备或应用客户端是否预先执行应用服务器发现和/或路由影响，使能客 户端无需根据再根据应用信息判断是否预先执行应用服务器发现和/或路由影响，有利于提高使能客户端执行判断的效率。
本技术方案通过第一判定信息确定触发执行路由影响的时机，当确定预先执行路由影响，有利于降低对时延要求较高的应用客户端获取应用服务的时延；当确定不预先执行路由影响，有利于减少优化后的用户面一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)不实际为终端设备提供服务的情况，有利于减少网络资源的浪费，有利于提高终端设备用户的应用服务体验。
结合第一方面，在第一方面的某些实现方式中，该第一判定信息包括应用信息，应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，根据应用客户端的固有属性判断是否预先执行路由影响，有利于提高使能服务器为不同终端设备提供服务的适应性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的一项或多项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源或存储资源。
根据一种或多种信息判断服务器的类型，使能服务器可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化使能服务器确定是否预先执行路由影响的判断过程与消息内容，有利于提高使能服务器确定是否预先执行路由影响的效率。
结合第一方面，在第一方面的某些实现方式中，该第一判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
使能服务器通过获取指示信息，并根据该指示信息确定是否预先执行路由影响，从而确定是否发送为应用服务器执行路由影响的请求消息，使能服务器可以结合应用客户端的实际运行状态以及实际需求作出相应的响应，对于不同的指示信息，使能服务器都可以作出对应的响应，从而使得应用服务器能够更好地为应用客户端提供应用服务。
在一种可能的实现方式中，该时延需求为首包的时延需求，该首包的时延需求指所述应用客户端向一个或多个应用服务器发送的第一个数据包的时延需求。
首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在另一种可能的实现方式中，该时延需求还用于表示应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。
在一种可能的实现方式中，使能服务器还可以根据以下信息中的一种或多种确定是否预先执行路由影响：
使能客户端上报选定的应用服务器信息或该上报事件，或者使能客户端上报的应用客 户端即将传输数据的指示信息或该上报事件，或者使能客户端上报的预先执行影响的上报事件。
使能服务器可以根据使能客户端上报的信息内容或者上报事件确定是否预先执行路由影响，为使能服务器提供了更多的判断方法，有利于提高使能服务器为不同的终端设备或者在不同的运行场景下的适用性。
结合第一方面，在第一方面的某些实现方式中，使能服务器发送发现响应消息，该发现响应消息用于指示已经为该一个或多个应用服务器执行路由影响。
使能服务器将选择的应用服务器以及已经为应用服务器执行路由影响的结果反馈给使能客户端，使能客户端可以根据该反馈信息对应用服务器进行筛选，对于已经执行路由影响的应用服务器，可以优先反馈给应用客户端，用于应用客户端连接从而获取应用服务。
可选地，该发现响应消息还用于指示该一个或多个应用服务器是否完成路由影响。
或者，该发现响应消息还用于指示一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
应用客户端可以直接连接已经完成路由影响的应用服务器，从而有利于提高应用客户端获取应用服务器的应用服务的效率。
结合第一方面，在第一方面的某些实现方式中，使能服务器向选定的应用服务器预先发送第一指示消息，该第一指示消息用于指示预先触发执行路由影响，该一个或多个应用服务器包括选定的应用服务器。
应理解，第一指示消息用于指示选定的应用服务器为该选定的应用服务器预先触发执行路由影响。
使能服务器可以直接请求选定的应用服务器触发执行路由影响，无需请求核心网为一个或多个应用服务器执行路由影响，有利于提高核心网执行路由影响的效率，有利于提高终端设备获取应用服务的效率。
在一种可能的实现方式中，该第一指示消息中还包括应用信息和/或指示信息，选定的应用服务器可以根据该应用信息和/或指示信息确定是否预先执行路由影响。
由应用服务器来判断是否执行路由影响，有利于改善边缘数据网络触发执行路由影响的机制，有利于提高边缘数据网络为终端设备提高应用服务的效率。
第二方面，提供了一种请求应用功能的方法，包括：
使能服务器根据第一判定信息确定是否预先执行路由影响。
使能服务器在执行路由影响前先对是否预先执行路由影响进行判断，有利于边缘数据网络根据不同情况确定触发执行路由影响的时机。当确定预先执行路由影响，对于时延需求较高的应用客户端，可以在其与应用服务器有数据交互前为其完成用户面路径的优化，从而有利于降低应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验；当确定不预先执行路由影响，有利于减少立即为对时延要求不高或暂时不需要边缘计算服务的应用客户端优化用户面路径，从而有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于减少网络资源的浪费。
在一种可能的实现方式中：当确定预先执行路由影响，该使能服务器向选定的应用服务器预先发送触发执行路由影响的指示消息，该指示消息用于指示预先触发执行路由影响。
应理解，该指示消息用于指示选定的应用服务器为该选定的应用服务器预先触发执行路由影响。
根据第一判断信息，使能服务器可以得到确定的判断结果，对于网络资源充足的边缘数据网络，使能服务器可以通过获取确定的判断结果，尽可能为更多的终端设备提供应用服务，有利于充分利用边缘数据网络的网络资源。对于对时延要求较高的应用客户端，由于预先为其执行了路由影响，应用客户端获取应用服务的时延可以得到降低，有利于提高终端设备用户的应用服务体验。
在另一种可能的实现方式中，当确定不预先执行路由影响，该使能服务器不预先发送触发执行路由影响的指示消息，该指示消息用于指示预先触发执行路由影响。
应理解，该指示消息用于指示选定的应用服务器为该选定的应用服务器预先触发执行路由影响。
根据第一判断信息，使能服务器可以得到否定的判断结果，对于网络资源不够充足或比较紧张的边缘数据网络，使能服务器可以通过获取否定的判断结果，尽量减少为暂时不需要边缘计算服务的终端设备优化用户面路径，从而有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于预留网络资源或边缘数据网络资源，有利于保障已经接入的终端设备的应用服务质量，有利于提高边缘数据网络提供应用服务的稳定性。
在又一种可能的实现方式中，当确定不预先执行路由影响，该使能服务器保存不预先执行路由影响的判断结果。
使能服务器可以根据不预先执行路由影响的判断结果，确定下一次该使能客户端是否预先执行路由影响，无需再根据应用信息确定是否预先执行路由影响，有利于提高使能服务器判断是否预先执行路由影响的效率。
在又一种可能的实现方式中，当确定不预先执行路由影响，使能服务器将不预先执行路由影响的判断结果发送至使能客户端。
这里，不预先执行路由影响的判断结果又可以称为未预先执行路由影响的指示信息。
可选地，使能客户端保存不预先执行路由影响的判断结果。
使能客户端可以根据不预先执行路由影响的判断结果，确定下一次该应用客户端是否预先执行应用服务器发现和/或路由影响，有利于提高使能客户端执行判断的效率。
可选地，使能客户端向应用客户端发送不预先执行路由影响的判断结果。
应用客户端根据接收的不预先执行路由影响的判断结果，可以确定上一次的请求失败，从而更改请求方式或者更改请求路径，有利于提高应用客户端获取应用服务的效率。
可选地，使能服务器还向使能客户端发送选定的应用服务器的信息。
可选地，使能客户端向应用客户端发送选定的应用服务器的信息。
可选地，应用客户端向选定的应用服务器发送触发执行路由影响的指示信息，该指示信息用于请求选定的应用服务器为该选定的应用服务器触发执行路由影响。
应用客户端在获取选定的应用服务器的信息后，可以直接请求选定的应用服务器执行路由影响，有利于简化触发执行路由影响的流程，提高应用客户端获取应用服务的效率。
可选地，应用客户端根据不预先执行路由影响的判断结果向使能客户端发送预先触发执行应用服务器发现和/或预先执行路由影响的指示信息。
可选地，使能客户端向使能服务器发送预先执行应用服务器发现和/或预先执行路由影响的指示信息。
在获取不预先执行路由影响的判断结果后，应用客户端直接向使能客户端发送指示信息，使能客户端将指示信息再发送至使能服务器，通过指示信息预先触发路由影响，有利于提高为应用客户端触发执行路由影响的成功率。
本技术方案通过第一判定信息确定触发执行路由影响的时机，当确定预先执行路由影响，有利于降低对时延要求较高的应用客户端获取应用服务的时延；当确定不预先执行路由影响，有利于减少优化后的用户面包含的用户面功能网元一段时间内被空占的情况，有利于减少网络资源的浪费，有利于提高终端设备用户的应用服务体验。
结合第二方面，在第二方面的某些实现方式中，该第一判定信息包括应用信息，应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，根据应用客户端的固有属性判断是否预先执行路由影响，有利于提高使能服务器为不同终端设备提供服务的适应性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的一项或多项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源或存储资源。
根据一种或多种信息判断服务器的类型，使能服务器可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化使能服务器确定是否预先执行路由影响的判断过程与消息内容，有利于提高使能服务器确定是否预先执行路由影响的效率。
结合第二方面，在第二方面的某些实现方式中，该第一判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
使能服务器通过获取指示信息，并根据该指示信息确定是否预先执行路由影响，从而确定是否发送为应用服务器执行路由影响的请求消息，使能服务器可以结合应用客户端的实际运行状态以及实际需求作出相应的响应，对于不同的指示信息，使能服务器都可以作出对应的响应，从而使得应用服务器能够更好地为应用客户端提供应用服务。
在一种可能的实现方式中，该时延需求为首包的时延需求，该首包的时延需求指所述应用客户端向一个或多个应用服务器发送的第一个数据包的时延需求。
首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在另一种可能的实现方式中，该时延需求还用于表示应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。
在一种可能的实现方式中，使能服务器还可以根据以下信息中的一种或多种确定是否 预先执行路由影响：
使能客户端上报选定的应用服务器信息或该上报事件，或者使能客户端上报的应用客户端即将传输数据的指示信息或该上报事件，或者使能客户端上报的预先执行影响的上报事件。
使能服务器可以根据使能客户端上报的信息内容或者上报事件确定是否预先执行路由影响，为使能服务器提供了更多的判断方法，有利于提高使能服务器为不同的终端设备或者在不同的运行场景下的适用性。
结合第二方面，在第二方面的某些实现方式中，使能服务器发送发现响应消息，该发现响应消息用于指示已经为该一个或多个应用服务器执行路由影响。
使能服务器将选择的应用服务器以及已经为应用服务器执行路由影响的结果反馈给使能客户端，使能客户端可以根据该反馈信息对应用服务器进行筛选，对于完成路由影响的应用服务器或具备优化的用户面路径的应用服务器，可以优先反馈给应用客户端，用于应用客户端连接从而获取应用服务。
可选地，该发现响应消息还用于指示该一个或多个应用服务器是否完成路由影响。
或者，该发现响应消息还用于指示一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
应用客户端可以直接连接已经完成路由影响的应用服务器，从而有利于提高应用客户端获取应用服务器的应用服务的效率。
第三方面，提供了一种请求应用功能的方法，包括：
使能客户端根据第二判定信息确定是否预先执行应用服务器发现。
使能客户端在触发执行应用服务器发现前首先对是否预先执行应用服务器发现进行判断，有利于使能客户端根据不同情况确定触发执行应用服务器发现的时机。当确定预先执行应用服务器发现，对于时延要求较高的应用客户端，可以提前为其发现应用服务器，以便于在该应用客户端与应用服务器有数据交互前，为发现的应用服务器执行路由影响，从而有利于降低该应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验。当确定不预先执行应用服务器发现，边缘数据网络不会在应用客户端与应用服务器有数据交互前为应用客户端执行应用服务器发现，进而也不会为该应用客户端在这段时间内触发执行路由影响，从而有利于提高使能客户端与边缘数据网络通信信令交互的有效性，在一定程度上也有利于减少优化后的用户面包含的用户面功能网元一段时间内被空占的情况，有利于减少网络资源的浪费。
在一种可能的实现方式中，当确定预先执行应用服务器发现，该使能客户端预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
根据第二判断信息，使能客户端可以得到确定的判断结果，使能客户端可以通过获取确定的判断结果，尽可能为更多的应用客户端提供服务，有利于充分利用边缘数据网络的网络资源。对于对时延要求较高的应用客户端，预先为其执行了应用服务器发现，有利于该应用客户端进一步请求为发现的应用服务器预先执行路由影响，从而有利于降低该应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验。
在另一种可能的实现方式中，当确定不预先执行应用服务器发现，该使能客户端不预 先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
根据第二判断信息，使能客户端可以得到否定的判断结果，使能客户端可以通过获取否定的判断结果，尽量减少为新的应用客户端接入边缘数据网络，有利于保障已经接入的应用客户端获取的应用服务质量，有利于降低终端设备的功耗。此外，由于确定了不预先执行应用服务器发现，边缘数据网络也不会在应用客户端与应用服务器有数据交互前为该应用客户端执行路由影响，有利于提高使能客户端与边缘数据网络通信信令交互的有效性，在一定程度上也有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于降低网络资源或边缘数据网络资源的浪费。
在又一种可能的实现方式中，当确定不预先执行应用服务器发现，该使能客户端保存不预先执行应用服务器发现的判断结果。
使能客户端可以根据不预先执行应用服务器发现的判断结果，为该应用客户端确定下一次是否预先执行应用服务器发现，有利于提高使能客户端确定是否预先执行应用服务器发现的效率。
可选地，使能客户端将不预先执行应用服务器发现的判断结果发送至应用客户端。
可选地，应用客户端根据不预先执行应用服务器发现的判断结果，向使能客户端发送预先执行应用服务器发现指示和/或预先执行路由影响的指示。
应用客户端根据不预先执行应用服务器发现的判断结果，可以重新准备下一次向使能客户端的请求，如使该请求消息中包括预先执行应用服务器发现的指示消息等，有利于提高为应用客户端触发执行应用服务器发现的效率。
在一种可能的实现方式中，使能客户端根据第二判定信息确定是否预先执行路由影响，当确定预先执行路由影响，确定预先执行应用服务器发现；当确定不预先执行路由影响，确定不预先执行应用服务器发现。
通过确定预先执行路由影响来确定预先执行应用服务器发现，从而通过应用服务器发现流程确定的应用服务器可以执行路由影响，有利于提高应用客户端确定具有优化用户面路径的应用服务器的效率，有利于提高应用客户端获取应用服务的效率。
本技术方案的实施，有利于改进使能客户端触发执行应用服务器发现的触发机制，使得使能客户端通过判断条件满足时再触发执行应用服务器发现，有利于使能客户端为不同类型、不同运行状态的应用客户端提供服务，有利于提高使能客户端的服务效率与服务质量。
本技术方案通过第二判定信息确定执行应用服务器发现的时机，当确定预先执行应用服务器发现，有利于降低对时延要求较高的应用客户端获取应用服务的时延；当确定不预先执行应用服务器发现，有利于提高使能客户端与边缘数据网络通信信令交互的有效性，也有利于减少优化后的用户面一段时间内不实际为终端设备提供服务的情况，有利于减少网络资源的浪费。
结合第三方面，在第三方面的某些实现方式中，第二判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，根据应 用客户端的固有属性判断是否预先执行应用服务器发现，有利于提高使能服务器为不同终端设备提供服务的适应性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的一项或多项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源或存储资源。
根据一种或多种信息判断服务器的类型，使能服务器可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化使能服务器确定是否预先执行路由影响的判断过程与消息内容，有利于提高使能服务器确定是否预先执行应用服务器发现的效率。
本技术方案的实施，有利于使能客户端根据应用客户端的本身属性进行判断并做出相应的响应，有利于提高为不同类型的客户端提供服务的适应性，有利于提高使能客户端整体的服务效率，有利于提高终端设备用户的应用服务体验，也有利于提高边缘数据网络的服务质量。
结合第三方面，在第三方面的某些实现方式中，第二判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
指示信息可以体现应用客户端对于其运行环境的相关需求，使能客户端通过获取该指示信息进而可以根据指示信息确定是否为该应用客户端预先执行路由影响，从而确定是否预先发送应用服务器发现请求消息，触发执行应用服务器发现。使能客户端可以结合应用客户端的实际运行状态以及实际需求做出相应的响应，且对于不同的指示信息，使能客户端都可以做出对应的响应，从而使能客户端可以更好地为应用客户端提供服务。
本技术方案的实施，有利于改进使能客户端触发执行应用服务器发现的触发机制，有利于使使能客户端为不同运行状态或运行需求的应用客户端提供服务，有利于提高终端设备用户的应用服务体验，在一定程度上也有利于提高边缘数据网络的服务质量。
在一种可能的实现方式中，该时延需求为首包的时延需求，该首包的时延需求指所述应用客户端向一个或多个应用服务器发送的第一个数据包的时延需求。
首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
结合第三方面，在第三方面的某些实现方式中，使能客户端接收使能服务器发送的发现响应消息，该发现响应消息用于指示已经为一个或多个应用服务器执行路由影响；
使能客户端向应用客户端发送第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为一个或多个应用服务器执行路由影响。
使能客户端根据接收的发现响应消息可以从一个或多个应用服务器中进行筛选，对于已经执行路由影响的应用服务器可以优先反馈给应用客户端，用于应用客户端连接从而获取应用服务。
可选地，该发现响应消息还用于指示一个或多个应用服务器是否完成路由影响，或者一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
可选地，该第一响应消息还用于指示一个或多个应用服务器是否完成路由影响，或者一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
应用客户端可以直接连接已经完成路由影响的应用服务器，从而有利于提高应用客户端获取应用服务器的应用服务的效率。
使能客户端在获取应用服务器信息和应用服务器是否完成路由影响的指示信息后，可以进一步发送给应用客户端。应用客户端可以根据指示信息确定通过哪一个应用服务器获取应用服务。
本技术方案的实施，有利于提高使能客户端和使能服务器的服务效率，有利于提高终端设备用户的应用服务体验，有利于减少使能客户端与使能服务器之间进行多余的交互产生的信令浪费，也有利于减少不必要的用户面路径优化，有利于减少网络资源浪费。
第四方面，提供了一种请求应用功能的方法，包括：
使能客户端根据第二判定信息确定是否预先执行路由影响；
使能客户端在触发执行路由影响前首先对是否预先执行路由影响进行判断，有利于使能客户端根据不同情况确定触发执行路由影响的时机。当确定预先执行路由影响，使能客户端可以相应地预先触发执行应用服务器发现，对于对时延需求较高的应用客户端，有利于为其在该应用客户端与应用服务器有数据交互前触发进行用户面路径优化，有利于降低该应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验。当确定不预先执行路由影响，使能客户端可以相应地不预先触发执行应用服务器发现，有利于减少边缘数据网络为不需要预先执行应用服务器发现的应用客户端预先执行应用服务器发现或者为不需要预先执行路由影响的应用客户端预先执行路由影响的情况，有利于提高使能客户端与边缘数据网络通信信令交互的有效性，此外，在一定程度上也有利于减少优化后的用户面包含的用户面功能网元一段时间内(例如完成路由影响至应用客户端与应用服务器有数据交互前这一段时间)被空占的情况，有利于减少网络资源的浪费。
在一种可能的实现方式中，当确定预先执行路由影响，该使能客户端预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
根据第二判断信息，使能客户端可以得到确定的判断结果，使能客户端可以通过获取确定的判断结果，尽可能为更多的应用客户端提供服务，有利于充分利用边缘数据网络的网络资源。对于时延要求较高的应用客户端，预先为其执行路由影响，有利于降低该应用客户端获取应用服务的时延，有利于提高终端设备用户的应用服务体验。
在另一种可能的实现方式中，当确定不预先执行路由影响，该使能客户端不预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
根据第二判定信息，使能客户端可以得到否定的判断结果，使能客户端可以通过获取否定的判断结果，尽量减少为新的应用客户端接入边缘数据网络，有利于保障已经接入的应用客户端获取的应用服务质量，有利于降低终端设备的功耗。此外，由于确定不预先执行路由影响，使能客户端不会预先触发执行应用服务器发现，从而边缘数据网络也不会在 应用客户端与应用服务器有数据交互前为该应用客户端执行路由影响，有利于提高使能客户端与边缘数据网络通信信令交互的有效性，在一定程度上也有利于减少优化后的用户面包含的用户面功能网元一段时间内被空占的情况，有利于减少网络资源的浪费。
在一种可能的实现方式中，使能客户端在接收应用服务器发现请求后，确定是否预先执行路由影响。
在另一种可能的实现方式中，使能客户端在接收到使能服务器发送的一个或多个候选的应用服务器信息后确定是否预先执行路由影响。
在又一种可能的实现方式中，使能客户端根据接收的选定的应用服务器信息或接收选定的应用服务器信息事件确定是否预先执行路由影响。
可选地，该选定的应用服务器可以由应用客户端或使能客户端或使能服务器确定。
使能客户端既可以根据应用客户端发送的信息确定是否预先执行路由影响，又可以根据使能服务器发送的信息确定是否预先执行路由影响，有利于改善使能客户端触发执行路由影响的机制，有利于提高使能客户端触发执行路由影响的效率。
本技术方案的实施，有利于改进使能客户端触发执行应用服务器发现的触发机制，使得使能客户端通过判断条件满足时再触发执行应用服务器发现，有利于使能客户端为不同类型、不同运行状态的应用客户端提供服务，有利于提高使能客户端的服务效率与服务质量。
结合第四方面，在第四方面的某些实现方式中，第二判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，根据应用客户端的固有属性判断是否预先执行应用服务器发现，有利于提高使能服务器为不同终端设备提供服务的适应性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的一项或多项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源和存储资源。
根据一种或多种信息判断服务器的类型，使能服务器可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化使能服务器确定是否预先执行路由影响的判断过程与消息内容，有利于提高使能服务器确定是否预先执行应用服务器发现的效率。
本技术方案的实施，有利于使能客户端根据应用客户端的本身属性进行判断并做出相应的响应，有利于提高为不同类型的客户端提供服务的适应性，有利于提高使能客户端整体的服务效率，有利于提高终端设备用户的应用服务体验，也有利于提高边缘数据网络的服务质量。
结合第四方面，在第四方面的某些实现方式中，第二判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
指示信息可以体现应用客户端对于其运行环境的相关需求，使能客户端通过获取该指示信息进而可以根据指示信息确定是否为该应用客户端预先执行路由影响，从而确定是否预先发送应用服务器发现请求消息，触发执行应用服务器发现。使能客户端可以结合应用客户端的实际运行状态以及实际需求做出相应的响应，且对于不同的指示信息，使能客户 端都可以做出对应的响应，从而使能客户端可以更好地为应用客户端提供服务。
本技术方案的实施，有利于改进使能客户端触发执行应用服务器发现的触发机制，有利于使使能客户端为不同运行状态或运行需求的应用客户端提供服务，有利于提高终端设备用户的应用服务体验，在一定程度上也有利于提高边缘数据网络的服务质量。
在一种可能的实现方式中，该时延需求为首包的时延需求，该首包的时延需求指所述应用客户端向一个或多个应用服务器发送的第一个数据包的时延需求。
首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
结合第四方面，在第四方面的某些实现方式中，确定是否预先执行路由影响包括确定是否预先执行应用服务器发现。
将确定是否预先执行路由影响与确定是否预先执行应用服务器发现相联合，有利于简化为应用客户端确定提供具有优化用户面路径的应用服务器的过程，有利于提高应用客户端获取应用服务的效率。
结合第四方面，在第四方面的某些实现方式中，使能客户端接收使能服务器发送的发现响应消息，该发现响应消息用于指示已经为一个或多个应用服务器执行路由影响。
使能客户端向应用客户端发送第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为一个或多个应用服务器执行路由影响。
使能客户端根据接收的发现响应消息可以从一个或多个应用服务器中进行筛选，对于已经执行路由影响的应用服务器可以优先反馈给应用客户端，用于应用客户端连接从而获取应用服务。
可选地，该发现响应消息还用于指示一个或多个应用服务器是否完成路由影响，或者一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
可选地，该第一响应消息还用于指示一个或多个应用服务器是否完成路由影响，或者一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
应用客户端可以直接连接已经完成路由影响的应用服务器，从而有利于提高应用客户端获取应用服务器的应用服务的效率。
使能客户端在获取应用服务器信息和应用服务器是否完成路由影响的指示信息后，可以进一步发送给应用客户端。应用客户端可以根据指示信息确定通过哪一个应用服务器获取应用服务。
本技术方案的实施，有利于提高使能客户端和使能服务器的服务效率，有利于提高终端设备用户的应用服务体验，有利于减少使能客户端与使能服务器之间进行多余的交互产生的信令浪费，也有利于减少不必要的用户面路径优化，有利于减少网络资源浪费。
第五方面，提供一种请求应用功能的方法，包括：
应用客户端根据应用信息确定是否预先执行应用服务器发现和/或预先执行路由影响， 该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，应用客户端根据自身固有属性判断是否预先执行应用服务器发现和/或预先执行路由影响，即确定执行应用服务器发现和/或执行路由影响的时机，有利于提高应用客户端获取应用服务的主动性。当确定预先执行应用服务器发现和/或执行路由影响，对于时延要求较高的应用客户端可以请求在其与应用服务器有数据交互前优化用户面路径，从而降低获取应用服务的时延。当确定不预先执行应用服务器发现和/或执行路由影响，应用客户端无需预先发送执行应用服务器发现和/或执行路由影响的请求或指示信息，有利于提高应用客户端与使能客户端等信令交互的有效性，有利于减少网络资源的浪费。
在一种可能的实现方式中，当确定预先执行应用服务器发现和/或预先执行路由影响，该应用客户端预先向使能客户端发送第一请求消息。
根据第二判断信息，应用客户端可以得到确定的判断结果，应用客户端可以通过获取确定的判断结果，主动请求获取边缘数据网络的提供的服务，有利于充分利用边缘数据网络的网络资源。对于时延要求较高的应用客户端可以请求在其与应用服务器有数据交互前优化用户面路径，从而降低应用客户端获取应用服务的时延。
在一种可能的实现方式中，当确定不预先执行应用服务器发现和/或不预先执行路由影响，该应用客户端不预先向使能客户端发送第一请求消息。
根据第二判断信息，应用客户端可以得到否定的判断结果，应用客户端可以通过获取否定的判断结果，减少获取边缘数据网络应用服务的机率，有利于保障已经接入的应用客户端获取的应用服务质量，有利于降低终端设备的功耗。此外，应用客户端无需预先发送执行应用服务器发现和/或执行路由影响的请求或指示信息，有利于提高应用客户端与使能客户端等信令交互的有效性，有利于减少网络资源的浪费。
在一种可能的实现方式中，当应用客户端根据应用信息确定不预先执行应用服务器发现和/或不预先执行路由影响，而终端设备或应用客户端用户指定预先执行应用服务器发现或预先执行路由影响，响应于用户的要求或指示，该应用客户端向使能客户端预先发送预先执行应用服务器发现请求指示信息和/或预先执行路由影响指示信息。
在另一种可能的实现方式中，当应用客户端根据应用信息确定当前的应用服务器无法满足应用需求，应用客户端向使能客户端预先发送预先执行应用服务器发现请求指示信息和/或预先执行路由影响指示信息。
根据应用信息判断无法预先执行应用服务器发现和/或预先执行路由影响，应用客户端可以通过发送预先执行应用服务器发现请求指示信息和/或预先执行路由影响指示信息请求使能客户端执行相应的操作，有利于提高应用客户端获取应用服务的机率，有利于提高应用客户端获取应用服务的主动性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的一项或多项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源和存储资源。
根据一种或多种信息判断服务器的类型，应用客户端可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化应用客户端确定是否预先执行路由影响的判断过程与消息内容，有利于提高应用客户端确定是否预先执行应 用服务器发现的效率。
本技术方案通过应用信息确定执行应用服务器发现和/或执行路由影响的时机，当确定预先执行应用服务器发现和/或执行路由影响，有利于降低对时延要求较高的应用客户端获取应用服务的时延。当确定不预先执行应用服务器发现和/或执行路由影响，有利于提高应用客户端与使能客户端等信令交互的有效性。此外，本技术方案的实施还有利于提高使能客户端和使能服务器的服务质量和服务效率，有利于提升应用客户端的服务体验，在一定程度上有利于减少信令浪费，有利于减少不必要的用户面路径优化，有利于降低网络资源的浪费。
结合第五方面，在第五方面的某些实现方式中，该第一请求消息包括应用信息和/或指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
应用客户端向使能客户端发送应用信息和/或指示信息，使能客户端在接收该信息后可以根据接收的消息先进行判断，确定是否触发执行相应的操作。
本技术方案的实施，有利于改进使能客户端触发执行应用服务器发现的触发机制，使得使能客户端通过判断条件满足时再触发执行应用服务器发现，有利于使能客户端为不同类型、不同运行状态的应用客户端提供服务，有利于提高使能客户端的服务效率与服务质量。
在一种可能的实现方式中，该时延需求为首包的时延需求，该首包的时延需求指所述应用客户端向一个或多个应用服务器发送的第一个数据包的时延需求。
首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
结合第五方面，在第五方面的某些实现方式中，应用客户端接收第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为该一个或多个应用服务器执行路由影响。
应用客户端通过接收第一响应消息获取一个或多个应用服务器的信息以及该一个或多个应用服务器是否完成路由影响的指示信息。根据指示信息，应用客户端可以优先选择已经执行路由影响的应用服务器为其提供应用服务，有利于加快应用客户端获取应用服务的速率，有利于提升应用客户端的服务体验。
可选地，该第一响应消息还用于指示一个或多个应用服务器是否完成路由影响，或者该第一响应消息还用于指示一个或多个应用服务器是否具有优化的用户面路径或用户面路径是否优化完成。
应用客户端可以直接连接已经完成路由影响的应用服务器，从而有利于提高应用客户端获取应用服务器的应用服务的效率。
结合第五方面，在第五方面的某些实现方式中，当确定预先执行应用服务器发现和/或预先执行路由影响，应用客户端向选定的应用服务器预先发送第二指示消息，第二指示 消息用于指示预先触发执行路由影响，该一个或多个应用服务器包括该选定的应用服务器。
在一种可能的实现方式中，当第一响应消息指示没有为一个或多个应用服务器执行路由影响，应用客户端根据应用信息确定是否预先执行路由影响；
当确定预先执行路由影响，该应用客户端预先向选定的应用服务器发送第二指示消息，该第二指示消息用于请求预先执行路由影响。
当确定不预先执行路由影响，该应用客户端不预先向选定的应用服务器发送第二指示消息，该第二指示消息用于请求预先执行路由影响。
可选地，应用客户端根据一个或多个应用服务器的信息确定选定的应用服务器。
对于反馈的应用服务器未完成路由影响或不具备优化的用户面路径时，应用客户端可以根据应用信息确定是否向反馈的某一个应用服务器发送触发为该应用服务器执行路由影响的请求。不需要将应用客户端选定的应用服务器反馈给使能客户端再反馈给使能服务器再触发路由影响，有利于减少应用客户端、使能客户端和使能服务器之间交互使用的信令的浪费，有利于提高终端设备用户的应用服务体验。
第六方面，提供一种请求应用功能的方法，包括：
应用客户端根据应用信息确定是否预先执行路由影响，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等；
应用类型、应用服务器类型或时延需求等均可以代表应用客户端的固有属性，应用客户端根据自身固有属性判断是否预先执行应用服务器发现和/或预先执行路由影响，即确定执行路由影响的时机，有利于提高应用客户端获取应用服务的主动性。当确定预先执行路由影响，对于时延要求较高的应用客户端可以请求在其与应用服务器有数据交互前优化用户面路径，从而降低获取应用服务的时延。当确定不预先执行路由影响，应用客户端无需预先发送执行执行路由影响的请求或指示信息，有利于提高应用客户端与使能客户端等信令交互的有效性，有利于减少网络资源的浪费。
在一种可能的实现方式中，当确定预先执行路由影响，该应用客户端预先向选定的应用服务器发送第二请求消息，该第二请求消息用于请求预先执行路由影响，该选定的应用服务器包括在一个或多个应用服务器中，该一个或多个应用服务器用于为应用客户端提供应用服务。
应理解，第二请求消息用于请求选定的应用服务器为该选定的应用服务器预先执行路由影响。
根据第二判断信息，应用客户端可以得到确定的判断结果，应用客户端可以通过获取确定的判断结果，主动请求获取边缘数据网络的提供的服务，有利于充分利用边缘数据网络的网络资源。对于时延要求较高的应用客户端可以请求在其与应用服务器有数据交互前优化用户面路径，从而降低应用客户端获取应用服务的时延。
在一种可能的实现方式中，当确定不预先执行路由影响，该应用客户端不预先向选定的应用服务器发送第二请求消息，该第二请求消息用于请求预先执行路由影响，该选定的应用服务器包括在一个或多个应用服务器中，该一个或多个应用服务器用于为应用客户端提供应用服务。
根据第二判断信息，应用客户端可以得到否定的判断结果，应用客户端可以通过获取否定的判断结果，减少获取边缘数据网络应用服务的机率，有利于保障已经接入的应用客 户端获取的应用服务质量，有利于降低终端设备的功耗。此外，应用客户端无需预先发送执行应用服务器发现和/或执行路由影响的请求或指示信息，有利于提高应用客户端与使能客户端等信令交互的有效性，有利于减少网络资源的浪费。
在一种可能的实现方式中，当确定不预先执行应用服务器发现和/或不预先执行路由影响，该应用客户端向使能客户端预先发送预先执行应用服务器发现请求指示信息和/或预先执行路由影响指示信息。
根据应用信息判断无法预先执行应用服务器发现和/或预先执行路由影响，应用客户端可以通过发送预先执行应用服务器发现请求指示信息和/或预先执行路由影响指示信息请求使能客户端执行相应的操作，有利于提高应用客户端获取应用服务的机率，有利于提高应用客户端获取应用服务的主动性。
在一种可能的实现方式中，该应用服务器类型可以根据服务器的服务关键性能指标确定。该服务关键性能指示包括以下信息中的至少一项：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源和存储资源。
根据一种或多种信息判断服务器的类型，应用客户端可以根据应用服务器的一些基本信息判断使能服务类型，进而判断是否预先执行路由影响，有利于简化应用客户端确定是否预先执行路由影响的判断过程与消息内容，有利于提高应用客户端确定是否预先执行应用服务器发现的效率。
本技术方案通过应用信息确定执行路由影响的时机，当确定预先执行路由影响，有利于降低对时延要求较高的应用客户端获取应用服务的时延，当确定不预先执行路由影响，有利于提高应用客户端与使能客户端等信令交互的有效性。此外，本技术方案的实施，有利于提高使能客户端和使能服务器的服务质量和服务效率，有利于提升应用客户端的服务体验，在一定程度上有利于减少信令浪费，有利于减少不必要的用户面路径优化，有利于降低网络资源的浪费。
结合第六方面，在第六方面的某些实现方式中，在确定是否预先执行路由影响前，该应用客户端发送第三请求消息，该第三请求消息用于请求发现一个或多个应用服务器。
对于反馈的应用服务器未完成路由影响或不具备优化的用户面路径时，应用客户端可以根据应用信息确定是否向反馈的某一个应用服务器发送触发为该应用服务器执行路由影响的请求。不需要将应用客户端选定的应用服务器反馈给使能客户端再反馈给使能服务器再触发路由影响，有利于减少应用客户端、使能客户端和使能服务器之间交互使用的信令的浪费，有利于提高终端设备用户的应用服务体验。
第七方面，提供一种通信系统，包括使能服务器、使能客户端和应用客户端，其中使能服务器用于实现第一方面或其任意可能的实现方式中的方法或者第二方面或其任意可能的实现方式中的方法，使能客户端用于实现第三方面或其任意可能的实现方式中的方法或者第四方面或其任意可能的实现方式中的方法，应用客户端用于实现第五方面或其任意可能的实现方式中的方法或者第六方面或其任意可能的实现方式中的方法。
第八方面，提供一种请求应用功能的装置，包括处理单元和收发单元，
该处理单元用于根据第一判定信息确定是否预先执行路由影响。
在一种可能的实现方式中，当确定预先执行路由影响，该收发单元用于预先发送应用功能请求消息，该应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。
在另一种可能的实现方式中，当确定不预先执行路由影响，该收发单元用于不预先发送应用功能请求消息，该应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。
结合第八方面，在第八方面的某些实现方式中，第一判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求等，该处理单元具体用于：
根据应用类型、服务器类型或时延需求中的一项或多项确定是否预先执行路由影响。
结合第八方面，在第八方面的某些实现方式中，第一判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现指示和/或预先执行路由影响，该处理单元具体用于：
根据预先执行应用服务器发现指示和/或预先执行路由影响指示确定预先执行路由影响。
结合第八方面，在第八方面的某些实现方式中，该收发单元还用于：发送发现响应消息，该发现响应消息用于指示已经为该一个或多个应用服务器执行路由影响。
第九方面，提供一种请求应用功能的装置，包括处理单元和收发单元，
该处理单元用于根据第一判定信息确定是否预先执行路由影响。
在一种可能的实现方式中，当确定预先执行路由影响，该收发单元用于向选定的应用服务器预先发送触发执行路由影响的指示消息，该指示消息用于指示预先触发执行路由影响。
在另一种可能的实现方式中，当确定不预先执行路由影响，该收发单元用于向选定的应用服务器不预先发送触发执行路由影响的指示消息，该指示消息用于指示预先触发执行路由影响。
结合第九方面，在第九方面的某些实现方式中，第一判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求，该处理单元具体用于：
根据应用类型、服务器类型或时延需求中的一项或多项确定是否预先执行路由影响。
结合第九方面，在第九方面的某些实现方式中，第一判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现指示和/或预先执行路由影响，该处理单元具体用于：
根据预先执行应用服务器发现指示和/或预先执行路由影响指示确定预先执行路由影响。
结合第九方面，在第九方面的某些实现方式中，该收发单元还用于：发送发现响应消息，该发现响应消息用于指示已经为该一个或多个应用服务器执行路由影响。
第十方面，提供一种请求应用功能的装置，包括：包括处理单元和收发单元，
该处理单元用于根据第二判定信息确定是否预先执行应用服务器发现。
在一种可能的实现方式中，当确定预先执行应用服务器发现，该收发单元用于预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
在另一种可能的实现方式中，当确定不预先执行应用服务器发现，该收发单元用于不 预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
结合第十方面，在第十方面的某些实现方式中，第二判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求等，该处理单元具体用于：
根据应用类型、服务器类型或时延需求中的一项或多项确定是否预先执行应用服务器发现。
结合第十方面，在第十方面的某些实现方式中，第二判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现指示和/或预先执行路由影响，该处理单元具体用于：
根据预先执行应用服务器发现指示和/或预先执行路由影响指示确定预先执行应用服务器发现。
结合第十方面，在第十方面的某些实现方式中，该收发单元还用于接收发现响应消息，该发现响应消息用于指示已经为一个或多个应用服务器执行路由影响；
该收发单元还用于发送第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为一个或多个应用服务器执行路由影响。
第十一方面，提供一种请求应用功能的装置，包括处理单元和收发单元，
该处理单元用于根据第二判定信息确定是否预先执行路由影响。
在一种可能的实现方式中，当确定预先执行路由影响，该收发单元用于预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
在另一种可能的实现方式中，当确定不预先执行路由影响，该收发单元用于不预先发送应用服务器发现请求消息，该应用服务器发现请求消息用于请求发现一个或多个应用服务器，该一个或多个应用服务器用于为应用客户端提供应用服务。
结合第十一方面，在第十一方面的某些实现方式中，第二判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求等，该处理单元具体用于：
根据应用类型、服务器类型或时延需求等中的一项或多项确定是否预先执行路由影响。
结合第十一方面，在第十一方面的某些实现方式中，第二判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现指示和/或预先执行路由影响，该处理单元具体用于：
根据预先执行应用服务器发现指示和/或预先执行路由影响指示确定预先执行路由影响。
结合第十一方面，在第十一方面的某些实现方式中，该处理单元还用于确定是否预先执行应用服务器发现。
结合第十一方面，在第十一方面的某些实现方式中，该收发单元还用于接收发现响应消息，该发现响应消息用于指示已经为一个或多个应用服务器执行路由影响；
该收发单元还用于发送第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为一个或多个应用服务器执行路由影响。
第十二方面，提供一种请求应用功能的装置，包括处理单元和收发单元，
该处理单元用于根据应用信息确定是否预先执行应用服务器发现和/或预先执行路由影响，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型和时延需求等。
在一种可能的实现方式中，当确定预先执行应用服务器发现和/或预先执行路由影响，该收发单元用于预先向使能客户端发送第一请求消息；
在一种可能的实现方式中，当确定不预先执行应用服务器发现和/或不预先执行路由影响，该收发单元用于不预先向使能客户端发送第一请求消息。
结合第十二方面，在第十二方面的某些实现方式中，该收发单元还用于接收第一响应消息，该第一响应消息包括一个或多个应用服务器信息，该第一响应消息还用于指示已经为一个或多个应用服务器执行路由影响。
结合第十二方面，在第十二方面的某些实现方式中，当确定预先执行应用服务器发现和/或预先执行路由影响，该收发单元具体用于：向选定的应用服务器预先发送第二指示消息，该第二指示消息用于指示预先触发执行路由影响，该一个或多个应用服务器包括选定的应用服务器。
第十三方面，提供一种请求应用功能的装置，包括处理单元和收发单元，
该处理单元用于根据应用信息确定是否预先执行路由影响，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求。
在一种可能的实现方式中，当确定预先执行路由影响，该收发单元用于预先向选定的应用服务器发送第二请求消息，该第二请求消息用于请求预先执行路由影响，该选定的应用服务器包括在一个或多个应用服务器中，该一个或多个应用服务器用于为应用客户端提供应用服务。
在一种可能的实现方式中，当确定不预先执行路由影响，该收发单元用于不预先向选定的应用服务器发送第二请求消息，该第二请求消息用于请求预先执行路由影响，该选定的应用服务器包括在一个或多个应用服务器中，该一个或多个应用服务器用于为应用客户端提供应用服务。
结合第十三方面，在第十三方面的某些实现方式中，该收发单元还用于：发送第三请求消息，该第三请求消息用于请求发现一个或多个应用服务器。
第十四方面，提供一种请求应用功能的装置，包括处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行第一方面或其任意可能的实现方式中的方法或者第二方面或其任意可能的实现方式中的方法。
第十五方面，提供一种请求应用功能的装置，包括处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行第三方面或其任意可能的实现方式中的方法或者第四方面或其任意可能的实现方式中的方法。
第十六方面，提供一种请求应用功能的装置，包括处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行第五方面或其任意可能的实现方式中的方法或者第六方面或其任意可能的实现方式中的方法。
第十七方面，提供一种计算机程序产品，该计算机程序产品包括计算机程序代码，当该计算机程序代码在计算机上运行时，使得第一方面或其任意可能的实现方式中的方法或者第二方面或其任意可能的实现方式中的方法被执行。
第十八方面，提供一种计算机程序产品，该计算机程序产品包括计算机程序代码，当该计算机程序代码在计算机上运行时，使得第三方面或其任意可能的实现方式中的方法被执行或者第四方面或其任意可能的实现方式中的方法被执行。
第十九方面，提供一种计算机程序产品，该计算机程序产品包括计算机程序代码，当该计算机程序代码在计算机上运行时，使得第五方面或其任意可能的实现方式中的方法或者第六方面或其任意可能的实现方式中的方法被执行。
第二十方面，提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得第一方面或其任意可能的实现方式中的方法或者第二方面或其任意可能的实现方式中的方法被执行。
第二十一方面，提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得第三方面或其任意可能的实现方式中的方法或者第四方面或其任意可能的实现方式中的方法被执行。
第二十二方面，提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得第五方面或其任意可能的实现方式中的方法或者第六方面或其任意可能的实现方式中的方法被执行。
第二十三方面，提供一种芯片，包括处理器，用于读取存储器中存储的指令，当该处理器执行该指令时，使得该芯片实现第一方面或其任意可能的实现方式中的方法或者第二方面或其任意可能的实现方式中的方法被执行。
第二十四方面，提供一种芯片，包括处理器，用于读取存储器中存储的指令，当该处理器执行该指令时，使得该芯片实现第三方面或其任意可能的实现方式中的方法或者第四方面或其任意可能的实现方式中的方法被执行。
第二十五方面，提供一种芯片，包括处理器，用于读取存储器中存储的指令，当该处理器执行该指令时，使得该芯片实现第五方面或其任意可能的实现方式中的方法或者第六方面或其任意可能的实现方式中的方法被执行。
附图说明
图1是一种适用于本申请实施例的网络架构示意图。
图2是一种适用于本申请实施例的EAS发现流程示意图。
图3是一种适用于本申请实施例的EES发现流程示意图。
图4是本申请实施例提供的一种触发执行路由影响的方法示意图。
图5是本申请实施例提供的另一种触发执行路由影响的方法示意图。
图6是本申请实施例提供的一种请求应用功能的方法示意图。
图7是本申请实施例提供的另一种请求应用功能的方法示意图。
图8是本申请实施例提供的又一种请求应用功能的方法示意图。
图9是本申请实施例提供的又一种请求应用功能的方法示意图。
图10是本申请实施例提供的又一种请求应用功能的方法示意图。
图11是本申请实施例提供的又一种请求应用功能的方法示意图。
图12是本申请实施例提供的又一种请求应用功能的方法示意图。
图13是本申请实施例提供的又一种请求应用功能的方法示意图。
图14是本申请实施例提供的又一种请求应用功能的方法示意图。
图15是本申请实施例提供的一种通信装置示意图。
图16是本申请实施例提供的一种通信设备示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例中，对于名词的数目，除非特别说明，表示“单数名词或复数名词”，即“一个或多个”。“至少一个”是指一个或者多个，“多个”是指两个或两个以上，“一种或多种”中的“多种”是指也类似两种或两种以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。例如，A/B，表示：A或B。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a，b，或c中的至少一项(个)，表示：a，b，c，a和b，a和c，b和c，或a和b和c，其中a，b，c可以是单个，也可以是多个。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(global system of mobile communication，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、第五代(5th generation，5G)系统或未来第六代(6th generation，6G)系统等。
本申请实施例中的终端设备可以指用户设备(user equipment，UE)、接入终端、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、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、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处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通讯(global system of mobile communication，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(nodeb，NB)，还可以是LTE系统中的演进型基站(evolutionalnodeb，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者PLMN网络中的网络设备等，本申请实施例并不限定。
图1是适用于本申请实施例的一种网络架构示意图。
用户设备(UE)包括一个或多个应用客户端(application client，AC)以及边缘使能客户端(edge enabler client，EEC)。用户设备可以通过应用客户端和/或边缘使能客户端与边缘数据网络建立连接从而获取应用服务。
应用客户端(AC)用于应用用户从应用服务器获取应用业务。应用客户端是应用在终端侧的客户端程序，应用客户端可以连接到云上的应用服务器获取应用业务，也可以连接到部署运行在一个或多个边缘数据网络(edge data network，EDN)中的边缘应用服务器(EAS)以获取应用业务。
边缘使能客户端(EEC)用于向边缘使能服务器(EES)注册EEC的信息以及应用客户端的信息，执行安全认证和鉴权，从EES获取EAS的英特网协议(internet protocol，IP)地址，向应用客户端提供边缘计算使能能力，如提供EAS发现服务，将EAS的IP地址返回给应用客户端。
边缘数据网络(EDN)包括边缘应用服务器(EAS)和边缘使能服务器(EES)，通过边缘应用服务器和边缘使能服务器的协作，边缘数据网络可以为用户设备提供应用服务。
边缘应用服务器(EAS)，又可以称为边缘应用、应用实例、边缘应用实例、多接入边缘计算(muti-access edge computing，MEC)应用(服务器)或EAS功能。EAS是部署在边缘数据网络中的应用，具体是指一个服务器应用程序(例如，社交媒体、增强现实(augmented reality，AR)、虚拟现实(virtual reality，VR))。一个应用可以在一个或多个EDN中部署一个或多个EAS，部署运行在不同的EDN中的EAS可以认为是一个应用的不同的EAS，它们可以共享一个域名，可以使用一个IP地址，也可以使用不同的IP地址。
边缘使能服务器(EES)，用于为部署在EDN中的应用实例提供一些使能能力，可以更好地支持应用在MEC的部署请求。EES可以支持边缘应用的注册、对UE的认证和鉴权，为UE提供应用实例的IP地址信息等，还可以进一步支持获取应用实例的标识和IP地址信息，并进一步将应用实例的标识和IP地址信息发送给边缘数据网络配置服务器(edge configuration server，ECS)。
EES部署在EDN中，一般情况下，EAS注册到一个EES上，或者通过管理系统将一个EAS的信息配置在一个EES上，该EES称为该EAS关联的EES，EES可以控制、管理注册和配置在该EES上的EAS。
边缘配置服务器(ECS)，负责EDN的配置，如向UE提供EES的信息，还可以直接向UE提供应用实例的信息以及和应用的域名解析系统(domain name system，DNS)交互获取应用实例的信息，进而从其他功能实体获取并保存应用实例和IP地址的信息。
如图1所示，应用客户端与边缘应用服务器之间设置应用数据路由(application data traffic，ADT)，应用客户端和边缘使能客户端、边缘应用服务器与边缘使能服务器、边缘使能服务器和边缘配置服务器之间等都设置有通信接口。
在图1所示的网络架构下，应用用户与应用的提供商签订服务协议，从而为应用用户提供服务，而应用用户通过登录终端上的应用客户端，通过应用客户端与EAS的连接进行通信。使能客户端为中间层，一般位于操作系统中，或者位于应用客户端与操作系统中间。应用客户端可以以应用编程接口(application program interface，API)的方式从使能 客户端获取边缘使能服务。
基于图1所示的网络架构，应用上下文迁移(application context relocation)过程如下：
(1)应用上下文迁移的检测：判断可能需要进行上下文迁移，此时多由检测实体检测到一些事件，例如UE位置变化，或UE用户面路径发生更新等。
(2)应用上下文迁移的决策：决策实体确定需要进行上下文迁移。
(3)应用上下文迁移的执行：主要是将应用的上下文从源EAS传送至目标EAS，还可以进一步包含通知终端目标EAS的信息，通知网络上下文迁移完成和目标EAS的相关信息(如目标EAS的地址，目标EAS对应N6路由信息等)。
(4)应用上下文迁移后的清理：涉及多个实体，例如应用客户端发起一个新的套接字(socket)连接到目标EAS等。
在正式介绍本申请实施例前，首先对以下实施例中可能用到的一些专业术语进行解释。
1、边缘计算(edge computing)：又译为边缘运算，是一种分布式运算的架构，将应用程序、数据资料与服务的运算，由网络中心节点，移往网络逻辑上的边缘节点来处理。边缘计算将原本完全由中心节点处理大型服务加以分解，切割成更小与更容易管理的部分，分散到边缘节点去处理。边缘节点更接近于用户终端设备，可以加快资料的处理与发送速度，减少延迟。在这种架构下，资料的分析与知识的产生，更接近于数据资料的来源，因此更适合处理大数据。
2、多接入边缘计算(MEC)：可利用无线接入网络就近提供电信用户信息技术(information technology，IT)所需服务和云端计算功能，而创造出一个具备高性能、低延迟与高带宽的电信级服务环境，加速网络中各项内容、服务及应用的快速下载，让消费者享有不间断的高质量网络体验。
3、数据网络(data network，DN)：指运营商或第三方的服务网络，可以向用户设备提供服务，如运营商业务、互联网业务等。
4、本地数据网络(local area data network，LADN)：距离用户的附着点(attachment point)很近的一个数据网络的接入点(access point)。
5、边缘数据网络(EDN)：一种通用理解，EDN只对应一个数据网络，是一个特别的本地数据网络(LDN)，包含边缘使能功能，可以使用数据网络接入标识(data network access identifier，DNAI)和数据网络名称(data network name，DNN)标识，是网络逻辑概念。另一种对于EDN的理解，是EDN是中心云的对等概念，可以理解为是一个本地的数据中心(地理位置概念)，可以使用DNAI来标识，可以包含多个本地数据网络。
6、应用上下文(application context)：指的是和一个或一组用户相关的运行状态信息，可选地，还可以包含该一个或多个用户在源EAS与核心网订阅的上下文，例如订阅的事务标识等。可选地，还包含该一个或多个用户在EES上的上下文，例如源EAS对该一个或多个用户的订阅的事务标识。
7、应用上下文迁移：在边缘应用运行的过程中，当UE移动到当前的服务区之外，例如EDN之间的UE移动、LADN之间的UE移动，当前提供服务的边缘应用服务器可能无法继续为当前运行的应用提供服务，或者当前提供服务的边缘应用服务器已经不是可以为该UE提供服务的最优的应用服务器，其他的边缘应用服务器可能更适合为UE上的应用程序客户端服务，因此需要使用新的边缘应用程序服务器替换当前进行服务的边缘应 用程序服务器从而更好地为该UE提供服务，在此过程中会引起应用服务短暂挂起或中断，需要将应用上下文迁移至新的边缘应用服务器中，从而保证应用运行中断的影响降至最低。
8、数据网络接入标识符(DNAI)：接入数据网络的用户面标识。
9、路由影响：指核心网的会话管理功能(session management function，SMF)网元或网络开放功能(network exposure fuction，NEF)网元确定终端设备与应用服务器之间优化的用户面路径的过程。通过执行路由影响，应用客户端或者终端设备可以通过合适的用户面功能(userplane function，UPF)网元接入到边缘数据网(EAS或EES)，从而获取网络应用服务。对于终端设备与应用服务器之间已经具备了优化的用户面路径的情况，会话管理功能网元或网络开放功能网元无需再执行路由影响。
路由影响可以由使能服务器触发，也可以由应用服务器或者配置服务器触发。路由影响可以通过直接触发的形式执行，示例性地，使能服务器直接向核心网的SMF或NEF发送应用功能请求消息，请求触发执行路由影响。路由影响也可以通过间接触发的形式执行，示例性地，使能服务器向选定的应用服务器发送触发执行路由影响的指示消息，该选定的应用服务器再向SMF或NEF发送应用功能请求消息，请求触发执行路由影响。
需要说明的是，本申请中仅以会话管理功能网元和网络开放功能网元为例说明路由影响的执行过程，未来，路由影响还可以由其他核心网网元来执行，或者会话管理功能网元和网络开放功能网元还可以有其他名称，本申请实施例对此不做限定。
本申请候选所描述的会话管理功能网元均可替换为SMF网元或者SMF，网络开放功能网元均可替换为NEF网元或者NEF，用户面功能网元均可替换为UPF网元或UPF。
以下结合图2首先说明适用于本申请实施例的EAS发现流程。
EAS发现流程用于确定一个或多个可以为应用客户端提供应用服务的应用服务器。在EEC获取到EES的统一资源定位系统(uniform resource locator，URL)信息、IP地址或其他信息，EES配置了边缘计算服务提供商(edge computing service provider，ESCP)的EAS发现策略后，可以执行EAS发现。
S101，EEC向EES发送EAS发现请求消息。
EAS发现请求包括EEC ID以及安全凭据，并可包括EAS发现过滤参数(discovery filter)以检索有关特定EAS或特定某类EAS(例如游戏应用程序)的信息。
EAS发现请求消息可以包含的信息如表1所示。
表1EAS发现请求消息中包含的信息
S102，EES检查EEC是否被授权发现所请求的EAS。
当EES检查确定EEC被授权，EES根据EAS发现过滤参数和用户设备的位置来识别 EAS。
EAS发现过滤参数可以包含的信息如表2所示。
表2EAS发现过滤参数中包含的信息
EAS发现过滤参数的AC配置文件中可以包含的信息如表3所示。
表3AC配置文件中包含的信息
在一些实施例中，EES未获取到EAS发现过滤参数，EES基于EES上的用户设备特定业务信息和终端设备位置识别EAS。
在一些实施例中，EES未获取到EAS发现过滤参数，EES通过应用ESCP策略(如仅基于终端设备位置)识别EAS。
在一些实施例中，EES可以根据以下信息中的至少一项选择出一个或多个EAS：终端设备的位置信息、终端设备的特定服务信息、ECSP策略和EAS发现过滤参数。其中，该过滤参数可以包括应用客户端类型、应用服务器类型和应用客户端对时延要求的信息中的一种或多种。
S103，EES向EEC发送EAS发现响应消息。
在一些实施例中，EES无法通过EAS发现请求消息中的输入、EES上的终端设备特定业务信息或ESCP策略确定EAS信息，则EES拒绝服务提供请求，并给出相应的失败原因。
示例性地，终端设备位于EAS的地理或拓扑服务区之外。
在一些实施例中，EES处理请求成功，EAS发现响应消息中包含已发现的EAS信息及其端点信息。
EAS响应消息中可以包含的信息如表4所示。
表4EAS响应消息中包含的信息
为了执行EAS的发现流程，需要首先确定EES，EES的确定通过EES的发现流程实现。以下结合图3说明EES的发现流程。
在执行EES发现流程前，ECS会根据终端设备的位置、服务需求、服务偏好和连接性等信息，配置EEC有关的可用的边缘计算服务信息，用于EEC发现有关可用的EES。
S201，EEC向ECS发送服务提供请求(service provisioning request)消息。
该服务提供请求消息用于向ECS请求触发EES发现，该服务提供请求消息包括终端设备标识符，例如GPSI、连接信息、终端设备的位置和AC配置文件(profile)信息。
具体地，服务提供请求消息可以包含的信息如表5所示。
表5服务提供请求消息包含的信息

S202，ECS处理请求信息。
ECS接收请求信息后，进行认证授权。
S203，ECS向EEC发送服务提供响应消息。
在一些实施例中，ECS根据EEC提供的AC配置文件和终端设备位置信息匹配注册到ECS上的EES，如果ECS无法根据EEC的请求消息等确定EES信息，则ECS拒绝服务提供请求，并给出失败的原因。
在一些实施例中，ECS成功处理服务请求，ECS向EEC发送服务提供响应消息，并提供EDN连接信息，满足EEC请求信息的EES列表以及EES的地址标识信息等。
在一些实施例中，服务提供响应消息包含的信息如表6所示。
表6服务提供响应消息包含的信息
以上结合图2和图3说明了EAS的发现流程及EES的发现流程，以下结合图4和图 5说明本申请实施例提供的触发执行路由影响的方法。
图4是本申请提供的一种触发执行路由影响的方法示意图。
本申请实施例中，EES向核心网的SMF或NEF发送应用功能请求消息，用于请求执行路由影响。
S301，EES向核心网发送应用功能请求消息。
该应用功能请求消息用于指示SMF或NEF执行路由影响。
具体地，EES直接向SMF请求执行路由影响，或者EES向NEF请求执行路由影响，NEF向SMF请求为应用客户端或终端设备或应用服务器执行路由影响。
在一些实施例中，EES向SMF或NEF发送一次应用功能请求消息，该应用功能请求消息中包括全部需要执行路由影响的EAS的DNAI信息，EAS的DNAI信息用于指示应用服务器的潜在位置。
在另一些实施例中，EES向SMF或NEF发送多次应用功能请求消息，该应用功能请求消息中包括一个或多个需要执行路由影响的EAS的DNAI信息，EAS的DNAI信息用于指示应用服务器的潜在位置。
在一些实施例中，应用功能请求消息中可以包括一个或多个EAS的信息，用于请求核心网的SMF或NEF为该一个或多个EAS执行路由影响。
可选地，该一个或多个EAS的信息包含在EAS列表中。
在一些实施例中，应用功能请求消息中包括目标EAS的信息，用于请求核心网的SMF或NEF为该目标EAS执行路由影响。
目标EAS是从EAS发现流程中候选的一个或多个EAS中选择的EAS，该目标EAS也可以称为选定的EAS。从候选的EAS中选择目标EAS的过程可以由EES执行，也可以由EEC执行，或者也可以由应用客户端执行。
可选地，目标EAS由应用客户端确定，应用客户端选择目标EAS后将目标EAS发送至EEC，EEC将接收的目标EAS上报至EES。
可选地，目标EAS由EEC确定，EEC选择目标EAS后将目标EAS上报至EES。
应用功能请求消息中还包括以下信息中的一项或多项：用户设备身份(UE identification，UE ID)、EAS信息(EAS或EAS列表)、订阅类型的信息和应用功能业务标识(application function transaction identifier)路由影响，该订阅类型可以为早通知(early notification)或晚通知(late notification)。
S302，SMF向EES发送目标DNAI。
具体地，核心网的SMF或NEF可以通过发送Nsmf_EventExposure_Notify将以下信息中的一项或多项发送至EES：目标DNAI、应用功能业务标识和EAS标识等，该目标DNAI为接入EAS优选的DNAI。
通过接收Nsmf_EventExposure_Notify消息，EES可以确定该目标DNAI为该EAS的具有UE-EAS的优化的用户面信息的DNAI。
在一些实施例中，SMF或NEF为一个或多个EAS分别选择目标DNAI，并为目标DNAI执行路由影响，从而终端设备到目标DNAI之间具备优化的用户面路径。
S303，执行UPF的插入、删除和修改操作。
具体地，核心网的SMF执行UPF的插入、删除和修改操作。
通过SMF执行UPF的插入、删除和修改等操作，即执行路由影响，终端设备到目标DNAI之间可以具有优化的用户面路径。
在一些实施例中，终端设备到目标DNAI之间已经具备优化的用户面路径，SMF无需执行用户面网元的插入、删除或修改等操作。即在这种情况下，SMF或NEF可以不执行路由影响。
可选地，SMF或NEF可以先为目标DNAI执行路由影响再向EES发送目标DNAI，即S303可以在S302之前执行。
图5为本申请实施例提供的另一种执行路由影响的方法示意图。
本申请实施例中，目标EAS向核心网的SMF或NEF发送应用功能请求消息，用于请求执行路由影响。
S401，EAS向核心网发送应用功能请求消息。
应用功能请求消息用于请求SMF或NEF为终端设备或应用客户端或应用服务器执行路由影响。
具体地，EAS直接向SMF请求执行路由影响，或者EAS向NEF请求执行路由影响，NEF向SMF请求为应用客户端或终端设备或应用服务器执行路由影响。
在一些实施例中，由EAS发送的应用功能请求消息中可以包括一个或多个用于接入该EAS的DNAI信息，EAS的DNAI信息用于指示应用服务器的潜在位置。
在另一些实施例中，EAS发送的路由影响应用功能请求消息可以包括以下信息中的一项或多项：UE ID、EAS信息、订阅类型的信息和应用功能业务标识，该订阅类型可以为早通知或晚通知。
可选地，在确定目标EAS具有优化的用户面路径的DNAI时，该目标EAS无需向SMF或NEF发送执行路由影响请求消息。
S402，核心网向EAS发送目标DNAI。
SMF或NEF可以通过发送Nsmf_EventExposure_Notify消息，将以下信息中的一项或多项发送至EAS：目标DNAI、应用功能业务标识或EAS标识，该目标DNAI为接入EAS优选的DNAI。
在一些实施例中，SMF或NEF为目标DNAI执行路由影响，从而终端设备到目标DNAI之间具备优化的用户面路径。
在一些实施例中，SMF或NEF确定目标DNAI具有优化的用户面路径，则无需为该目标DNAI执行路由影响。
S403，执行UPF的插入、删除和修改操作。
具体地，核心网的SMF执行UPF的插入、删除和修改操作。
通过SMF执行UPF的插入、删除和修改等操作，即执行路由影响，目标DNAI就可以配置优化后的用户面路径。
在一些实施例中，终端设备到目标DNAI之间已经具备优化的用户面路径，SMF无需执行用户面网元的插入、删除或修改等操作。即在这种情况下，SMF或NEF可以不执行路由影响。
可选地，SMF或NEF可以先为目标DNAI执行路由影响再向EAS发送目标DNAI，即S403可以在S402之前执行。
以上结合图4和图5详细介绍了本申请提供的执行路由影响的方法，以下结合图6至图15重点说明本申请提供的请求应用功能的方法。
图6是本申请提供的一种请求应用功能的方法示意图。
S501，应用客户端确定是否预先执行应用服务器发现和/或预先执行路由影响。
预先执行是指在应用客户端启动之前或者应用客户端与应用服务器有数据交互之前执行，预先执行又可以称为执行、提前执行、在先执行和立即执行等。
应用服务器发现流程由使能服务器执行，路由影响流程由核心网的SMF或NEF执行，这里执行可以理解为触发执行。预先执行应用服务器发现和/或路由影响可以为应用客户端获取应用服务做好准备，在应用客户端启动时可以快速获取到应用服务。
路由影响应用客户端可以根据应用信息确定是否预先执行应用服务器发现和/或路由影响，该应用信息包括应用类型、应用服务器类型或时延需求等中的一项或多项。当使能客户端获取到使能服务器通过应用服务器发现流程发现的应用服务器的信息时，使能客户端可以向应用客户端发送第一响应消息，该第一响应消息可以包括一个或多个应用服务器的信息，该一个或多个应用服务器可以是已经触发执行路由影响的应用服务器，或者也可以是未触发执行路由影响的应用服务器。
可选地，该一个或多个应用服务器可以是已经完成路由影响的应用服务器，或者也可以是未完成路由影响的应用服务器。
应理解，这里未完成路由影响的应用服务器可以指使能服务器已经向核心网的SMF或NEF请求执行路由影响，且收到SMF或NEF发送的确认消息，可以为该应用服务器执行路由影响，但路由影响尚未执行完成的情况。也可以指使能服务器尚未向SMF或NEF请求执行路由影响的情况。
在一些实施例中，该第一响应消息还可以用于指示返回给应用客户端的一个或多个应用服务器是否触发执行路由影响。
进一步地，在一些实施例中，该第一响应消息还可以用于指示返回给应用客户端的一个或多个应用服务器是否完成路由影响。
在一个实施例中，第一响应消息指示一个或多个应用服务器未完成路由影响，应用客户端根据应用信息确定是否预先执行路由影响。
在一些实施例中，应用客户端确定预先执行路由影响，应用客户端可以向使能客户端请求为选定的应用服务器执行路由影响，进而使能客户端请求使能服务器触发执行路由影响，使能服务器向SMF或NEF发送应用功能请求消息，从而触发执行路由影响。
在一些实施例中，使能服务器接收使能客户端的请求执行路由影响的消息后，向选定的应用服务器发送执行路由影响的消息，进而由选定的应用服务器向SMF或NEF发送应用功能请求消息，从而触发执行路由影响。
在另一些实施例中，应用客户端确定预先执行路由影响，应用客户端可以预先向选定的应用服务器发送第二请求消息；当确定不预先执行路由影响，应用客户端不预先向选定的应用服务器发送第二请求消息，第二请求消息用于请求为该选定的应用服务器执行路由影响。
选定的服务器是指从通过应用服务器发现流程发现的一个或多个候选应用服务器中选择出的一个或多个应用服务器，该选择过程可以由应用客户端执行，也可以由使能客户 端或使能服务器执行。
在一些实施例中，该选定的应用服务器已经具备了优化的用户面路径，这种情况下，SMF或NEF无需再为该选定的应用服务器执行路由影响，即无需再为选定的应用服务器执行UPF网元的插入、删除或修改等用户面路径的修改操作。
在另一些实施例中，该选定的应用服务器不具备优化的用户面路径，可以请求SMF或NEF为该选定的应用服务器执行路由影响。这里，为选定的应用服务器执行路由影响，也可以理解为选定的应用客户端或者选定的终端设备执行路由影响。
S502，应用客户端向使能客户端发送第一请求消息。
在一些实施例中，第一请求消息包括应用信息和/或指示信息，该应用信息包括以下信息中的一项或多项：应用类型、服务器类型或时延需求，该指示信息包括预先执行应用服务器发现指示和/或预先执行路由影响指示。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
当应用客户端确定不预先执行应用服务器发现和/或不预先执行路由影响，应用客户端不向使能客户端发送第一请求消息。
在一些实施例中，应用客户端确定预先执行应用服务器发现和/或预先执行路由影响，应用客户端向使能客户端发送第一请求消息。在一些实施例中，应用客户端发送的第一请求消息中不包括应用信息或指示信息，使能客户端和使能服务器无法获取第二判定依据或第一判定依据，使能客户端在获取候选的应用服务器信息后，将该候选的服务器信息反馈给应用客户端。
应用服务器可以根据应用信息判断是否预先执行路由影响，在需要预先执行路由影响的情况下，应用客户端选定应用服务器后，向选定的应用服务器发送应用功能请求消息，从而请求SMF或NEF为该应用服务器和/或该应用客户端和/或终端设备执行路由影响。或者，应用客户端可以向使能客户端预先发送请求执行路由影响的消息，使能客户端请求使能服务器执行路由影响，从而使能服务器请求选定的应用服务器执行路由影响或者直接请求SMF或NEF为选定的应用服务器执行路由影响。
S503，使能客户端根据第二判定信息确定是否预先执行应用服务器发现和/或预先执行路由影响。
使能客户端可以通过接收应用客户端的第一请求消息获取第二判定信息，该第二判定信息也可以通过预先配置的方式配置到使能客户端，或者其他更多的方式被使能客户端获取。
在一些实施例中，第二判定信息包括应用信息，该应用信息包括以下信息中的一项或 多项：应用类型、应用服务器类型或时延需求等。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在一些实施例中，第二判定信息包括指示信息，该指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
在一些实施例中，第二判定信息包括应用信息和指示信息。
在获取使能服务器反馈的一个或多个候选应用服务器信息时，使能客户端可以将该一个或多个候选应用服务器信息反馈给应用客户端，使能客户端也可以将该候选应用服务器是否完成路由影响的指示信息一起反馈给应用客户端。在一些实施例中，使能客户端将候选应用服务器中已经完成路由影响的应用服务器信息反馈给应用客户端。
S504，使能客户端向使能服务器发送应用服务器发现请求消息。
当使能客户端根据第一请求消息中的应用类型确定不预先执行路由影响，使能客户端不预先向使能服务器发送应用服务器发现请求消息。
当使能客户端根据第一请求消息中的时延需求确定不预先执行路由影响，使能客户端不预先向使能服务器发送应用服务器发现请求消息。
当使能客户端根据第一请求消息中的应用服务器类型确定不预先执行路由影响，使能客户端不预先向使能服务器发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第一请求消息中的应用类型确定预先执行应用服务器发现和/或预先执行路由影响，使能客户端向使能服务器发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第一请求消息中的时延需求确定预先执行应用服务器发现和/或预先执行路由影响，使能客户端预先向使能服务器发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第一请求消息中的应用服务器类型确定预先执行应用服务器发现和/或预先执行路由影响，使能客户端预先向使能服务器发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第一请求消息中的指示信息确定预先执行应用服务器发现和/或预先执行路由影响，使能客户端预先向使能服务器发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第一请求消息中的应用信息和指示信息确定是否预先执行应用服务器发现和/或预先执行路由影响，从而确定是否预先发送应用服务器发现请求消息。
在一些实施例中，使能客户端根据第二判定信息确定预先执行路由影响，根据预先执 行路由影响的判断结果，使能客户端确定预先执行应用服务器发现。
当使能客户端根据第二判定信息确定不预先执行路由影响，根据不预先执行路由影响的判断结果，使能客户端确定不预先发送应用服务器发现请求消息执行应用服务器发现。
S505，使能服务器根据第一判定信息确定是否预先执行路由影响。
该第一判定信息可以通过接收使能客户端发送的消息获取，也可以通过如预先配置等其他方式获取。
在一些实施例中，第一判定信息包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
在一些实施例中，第一判定信息包括指示信息，该指示信息包括预先执行应用服务器发现指示和/或预先执行路由影响指示。
在一些实施例中，该第一判定信息包括应用信息和指示信息。
当使能服务器根据应用服务器发现请求消息中的应用类型确定不预先执行路由影响，使能服务器不发送应用功能请求消息。
当使能服务器根据应用服务器发现请求消息中的时延需求确定不预先执行路由影响，使能服务器不发送应用功能请求消息。
当使能服务器根据应用服务器发现请求消息中的应用服务器类型确定不预先执行路由影响，使能服务器不发送应用功能请求消息。
在一些实施例中，使能服务器根据应用服务器发现请求消息中的应用类型确定预先执行路由影响，使能服务器发送应用功能请求消息。
在一些实施例中，使能服务器根据应用服务器发现请求消息中的时延需求确定预先执行路由影响，使能服务器发送应用功能请求消息。
在一些实施例中，使能服务器根据应用服务器发现请求消息中的应用服务器类型确定预先执行路由影响，使能服务器不发送应用功能请求消息。
在一些实施例中，使能服务器根据应用服务器发现请求消息中的指示信息确定预先执行路由影响，使能服务器发送应用功能请求消息。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在一些实施例中，使能服务器根据应用服务器发现请求消息中的应用信息和指示信息确定是否预先执行路由影响，从而确定是否发送应用功能请求消息。
使能服务器在执行应用服务器发现流程后确定一个或多个候选的应用服务器，使能服务器可以预先请求SMF或NEF为该一个或多个候选的应用服务器执行路由影响，使能服务器也可以直接将该一个或多个候选的应用服务器信息反馈给使能客户端，或者使能服务 器也可以在候选应用服务器中选择出选定的应用服务器，并向选定的应用服务器发送请求执行路由影响的消息，请求该选定的应用服务器触发执行路由影响。
在确定选定的应用服务器信息后，使能服务器再请求SMF或NEF为该选定的应用服务器执行路由影响，或者，使能服务器也可以直接请求选定的应用服务器为该选定的应用服务器触发执行路由影响。
使能服务器可以通过发现响应消息将一个或多个候选的应用服务器信息发送给使能客户端，该一个或多个候选的应用服务器可以是已经触发执行路由影响的应用服务器也可以是未触发执行路由影响的应用服务器，该发现响应消息中也可以包括该一个或多个候选应用服务器是否已经触发执行路由影响的指示信息。
应理解，本申请实施例中，AC确定是否预先执行应用服务器发现和/或预先执行路由影响与EEC确定是否预先执行应用服务器发现和/或预先执行路由影响以及EES是否预先执行路由影响既可以单独执行，也可以共同执行。即S501、S503或S505中至少有一项执行即可。
需要说明的是，使能服务器除根据上述第一判定信息确定是否预先执行路由影响外，还可以根据以下方式中的任一种确定是否预先执行路由影响：
1、使能服务器根据接收到上报的选定的应用服务器信息(如应用服务器类型)或者根据接收到上报选定的应用服务器信息的上报事件确定是否预先执行路由影响。
2、使能客户端将应用客户端即将传输数据至应用服务器的指示信息上报至使能服务器，使能服务器根据该上报事件确定是否预先执行路由影响。
3、使能客户端将预先执行路由影响的请求消息上报至使能服务器，使能服务器根据该上报事件确定是否预先执行路由影响。
图7是本申请实施例提供的一种请求应用功能的方法示意图。
本申请实施例中，EEC根据应用信息确定是否提前触发执行EAS发现，EES接收EEC的EAS发现请求信息后确定是否立即执行路由影响。
S601，EAS向EES发送EAS注册请求消息。
该注册请求消息用于请求在EES上注册EAS，该注册请求消息可以包括EAS配置文件(EAS profile)，该EAS配置文件包括DNAI列表，终端设备或应用客户端通过DNAI列表中的DNAI可以接入到EAS，从而获取EAS提供的应用服务。
在一些实施例中，EAS向EES发送EAS注册更新请求消息，该EAS注册更新请求消息用于请求更新已经在EES上注册的EAS的注册信息。
在一些实施例中，EAS的DNAI信息可以直接包括在注册请求消息中。
应理解，EES也可以通过预配置的方式获取到EAS的相关信息(如EAS的DNAI信息)，当EES通过预配置的方式获取到EAS的相关信息后，EAS则可以不再向EES发送EAS注册请求，即S601与S602可以不再执行。
S602，EES向EAS发送EAS注册响应消息。
该EAS注册响应消息用于指示EAS的注册是否成功。在EES接收EAS发送的注册更新请求消息的情况下，EES向EAS发送EAS注册更新响应消息。
在EAS注册成功时，该注册响应消息可以包括：EAS注册的ID、EAS注册到期的时间等。在EAS注册失败时，该注册响应消息可以包括EAS注册失败的原因信息等。
应理解，当EES通过预配置的方式获取EAS的相关信息时，S601和S602可以不执行。
S603，EEC确定是否预先执行EAS发现。
执行EAS发现(discovery)是为了确定适合为应用客户端提供应用服务的EAS以及该EAS的接入方式。预先执行EAS发现是指在应用客户端启动之前或应用客户端与EAS有数据交互之前执行EAS发现，预先执行又可以称为提前执行或立即执行等。
通过EAS发现流程确定的适合为应用客户端提供应用服务的EAS可以称为候选的EAS，具体的EAS发现流程可以参考图2的相关描述。
本申请实施例中，EEC根据应用信息确定是否预先执行EAS发现，其中，应用信息包括以下信息中的一项或多项：应用客户端类型(或应用类型)、应用服务器类型(或服务器类型)或应用客户端的时延需求(或时延需求)。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在一些实施例中，EEC根据应用客户端类型判断是否提前执行EAS发现。
在一个实施例中，EEC根据应用客户端的类型判断该应用客户端为对时延需求不高的应用客户端，EEC确定不预先执行EAS发现。
在另一个实施例中，EEC根据应用客户端的类型判断该应用客户端为对时延需求较高的应用客户端，EEC确定预先执行EAS发现。
示例性地，应用客户端类型是高可靠低时延通信(ultra reliable low latency communication，URLLC)类型的业务，或者应用客户端是游戏类等对时延要求有较高要求的应用，EEC会对此种应用客户端提前执行EAS发现。
在一些实施例中，EEC根据应用客户端的时延需求信息判断是否提前执行EAS发现，这里时延需求又可以称为时延要求。
在一个实施例中，EEC根据应用客户端的时延需求判断该应用客户端为对时延需求不高的应用客户端，EEC确定不预先执行EAS发现。
在另一个实施例中，EEC根据应用客户端的时延需求判断该应用客户端为对时延需求较高的应用客户端，EEC确定预先执行EAS发现。
示例性地，EEC保存一个预设的时延阈值，EEC在收到应用客户端发出的请求消息后，获取应用客户端的时延需求，当该时延需求小于时延阈值时，EEC判断为该应用客户端预先执行EAS发现，当该时延需求大于时延阈值时，EEC判断不为该应用客户端预先执行EAS发现。
在一些实施例中，EEC根据应用服务器类型判断是否提前执行EAS发现，该应用服 务器可以属于预期的应用服务器类型或者基本的应用服务器类型。
预期的应用服务器又可以称为理想的应用服务器，是指衡量应用服务器的关键性能指标能够为应用客户端提供完整的应用服务。基本的应用服务器又可以称为基础的应用服务器或最小的应用服务器，是指衡量应用服务器的关键性能指标只能够维持应用客户端的基础的应用服务。
应用服务器的类型可以根据应用服务器的服务关键性能指标来区分，应用服务器的服务关键性能指标可以包括：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源和存储资源。在判断应用服务器属于哪一种类型时，可以根据前述的服务关键性能指标中的一个或多个参数进行判断。
在一个实施例中，EEC根据应用服务器的服务关键性能指标中的连接带宽确定该应用服务器为基本的应用服务器，EEC根据该应用服务器的类型确定不预先执行应用服务器发现。
在一个实施中，EEC根据应用服务器的服务关键性能指标中的响应时间、可用性和内存资源判断该应用服务器为预期的应用服务器，EEC根据该应用服务器的类型确定预先执行应用服务器发现。
在一些实施例中，应用服务器的类型还可以单独根据应用客户端类型(application client type，AC type)来确定。
EEC还可以根据应用信息确定是否预先执行路由影响，该确定方法内容与上述根据应用信息确定是否预先执行EAS发现的内容类似，具体可以参见上文。
可选地，EEC根据应用信息确定预先执行路由影响，根据预先执行路由影响的判断结果，EEC确定预先执行EAS发现。
应用信息中可以包含的应用类型、应用服务器类型或时延需求等中的一种或多种，既可以通过预先配置的方式配置到EEC上，也可以由应用客户端向EEC发送消息的方式发送到EEC，或者其他更多的方式被EEC获取，本申请对EEC获取应用信息中可以包含的信息的方式不作限定。
EEC在发送请求执行EAS发现请求消息前首先对是否预先执行EAS发现进行判断，判断的依据为应用客户端本身属性相关信息，该判断的执行，可以使得EEC为应用客户端的服务时能够依据应用客户端的不同，进行差异性服务，有利于提高终端设备的服务效率，有利于合理调配终端设备的资源，有利于提高用户的应用使用体验。
可选地，EEC根据同一应用客户端的不预先执行EAS发现的判断结果，确定不为该应用客户端预先执行EAS发现。
可选地，EEC根据同一应用客户端的不预先执行路由影响的判断结果，确定不为该应用客户端预先执行EAS发现。
当确定不预先执行EAS发现，S604至S607可以不再执行。可选地，EEC保存不预先执行EAS发现的判断结果。
可选地，EEC可以向应用客户端发送未预先执行EAS发现的指示信息，这部分内容可以详细参见后文中图15所示的实施例的描述，此处不做详细介绍。
S604，EEC向EES预先发送EAS发现请求消息。
该EAS发现请求消息用于请求发现一个或多个EAS为应用客户端提供应用服务，该 发现请求还可以携带在EAS发现订阅请求消息或EAS发现订阅更新请求消息等消息中，本申请实施例对具体的承载消息不作限定。
预先发送又可以称为发送、提前发送和立即发送等，是指在应用客户端启动之前或应用客户端与EAS有数据交互之前发送EAS发现请求消息。
EAS发现请求消息中还包括以下信息中的一项或多项：EAS发现过滤参数、终端设备位置信息、终端设备特定服务信息和ECSP策略，EES在接收EAS发现请求消息后可以根据EAS发现请求消息中上述信息中的至少一项选择候选的EAS。
在一些实施例中，EAS发现请求消息中包含应用客户端类型。
在一个实施例中，EAS发现请求消息中包含应用客户端配置文件，该应用客户端配置文件中包括应用客户端类型。
在一个实施例中，EAS发现请求消息中包含EAS发现过滤参数，该EAS发现过滤参数中的应用客户端配置文件包含应用客户端类型。
在另一些实施例中，EAS发现请求消息中包括应用客户端对时延要求的信息。
在一个实施例中，EAS发现请求消息中新增时延要求相关信元，该信元用于存放应用客户端的时延需求。
示例性地，
信元名称：时延需求(delay requirement)；
信元状态：可选或必选；
信元描述：小于或等于0.1ms。
在另一个实施例中，EAS发现请求消息中使用现有的信元存放应用客户端的时延需求。
示例性地，该时延需求可以携带在EAS发现过滤参数中，或者应用客户端的特性列表中，或者应用客户端特性列表中的应用客户端配置文件中，或者EAS特性列表中，或者EAS特性列表的EAS配置文件中。
在一些实施例中，EAS发现请求消息中包含应用服务器类型。
在一个实施例中，EAS发现请求消息中包含一个或多个可以确定应用服务器类型的服务关键性能指标。
示例性地，EAS发现请求消息中包含应用服务器的服务关键性能指标参数中的一种或多种：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源或存储资源。S605，EES确定是否预先执行路由影响。
立即执行又可以称为执行、提前执行或预先执行。由于路由影响由SMF或NEF执行，这里执行可以理解为触发执行。
在一些实施例中，EES根据应用客户端类型、应用服务器类型或者应用客户端对时延要求的信息中的一种或多种确定是否立即执行路由影响。
在一个实施例中，EES根据应用客户端类型，确定该应用客户端为对时延要求较高的应用客户端类型，EES确定预先执行路由影响。
在另一个实施例中，EES根据应用客户端类型确定该应用客户端为对时延要求不高的应用客户端类型，EES确定不预先执行路由影响。
示例性地，EES保存不同应用客户端类型的列表，该列表中将应用客户端类型与是否预先执行路由影响建立对应关系，EES可以根据该列表确定不同类型的应用客户端是否预 先执行路由影响。
在一个实施例中，EES根据应用服务器类型确定应用服务器为基础的应用服务器，根据该判断结果，EES确定不预先执行路由影响。
在另一个实施例中，EES根据应用服务器类型确定应用服务器为预期的应用服务器，根据该判断结果，EES确定预先执行路由影响。
示例性地，EES根据服务关键性能指标的响应时间确定应用服务器为基础的应用服务器，EES确定不预先执行路由影响。
在一个实施例中，EES根据应用客户端的时延需求，确定该应用客户端对时延要求较高，EES确定预先执行路由影响。
在另一个实施例中，EES根据应用客户端的时延需求，确定该应用客户端对时延要求不高，EES确定不预先执行路由影响。
示例性地，EES保存一个预设的时延阈值，EES在收到EEC发出的请求消息后，获取应用客户端的时延需求，当该时延需求小于时延阈值时，EES判断为该应用客户端预先执行路由影响，当该时延需求大于时延阈值时，EES判断不为该应用客户端预先执行路由影响。
在一些实施例中，EES接收EAS发现请求消息后，确定该EAS发现请求消息为预先执行的EAS发现请求，EES根据该判定结果确定为该EAS发现请求消息对应的应用客户端或该EAS发现请求消息对应的终端设备预先执行路由影响。
可选地，EES还可以根据S505中描述的方法确定是否预先执行路由影响，详细确定方法可以参考S505，为了简洁，在此不再赘述。
EES可以执行图2所示的EAS发现流程确定一个或多个候选的EAS，该一个或多个候选的EAS可以组成候选的EAS列表。
在一些实施例中，EES可以在候选的EAS列表中选择一个或多个EAS，并请求SMF或NEF为该一个或多个EAS执行路由影响。
EES在发送触发执行路由影响的消息前，首先根据应用客户端的本身属性相关信息判断该应用客户端是否预先执行路由影响，该判断的执行有利于边缘数据网络根据所服务的应用客户端的类型、时延需求等信息来提供服务，有利提高边缘数据网络的服务效率和服务质量，有利于提升终端设备获取应用服务的效率，有利于提高终端设备用户的使用体验。
可选地，EES根据同一应用客户端的不预先执行路由影响的判断结果，确定不为该应用客户端预先执行路由影响。
当确定不预先执行路由影响，S606和S607可以不再执行。可选地，EES保存不预先执行路由影响的判断结果。
可选地，EES可以向EEC发送未预先执行路由影响的指示信息，这部分内容可以详细参见后文中图14所示实施例的描述，此处不做详细介绍。
S606，EES触发执行路由影响。
EES触发执行路由影响的过程可以具体参考图4所示实施例，此处不再赘述。
S607，EES向EEC发送EAS发现响应消息。
该EAS发现响应消息用于将候选的一个或多个EAS信息返回至EEC，该一个或多个EAS信息还可以通过EAS发现订阅响应消息或者通过EAS发现订阅更新响应消息或者 EAS发现通知消息发送，具体的承载消息在本申请中不做限定。
示例性地，当发现的一个或多个EAS满足应用客户端的应用服务需求时，EES向EEC发送EAS发现通知消息，该EAS发现通知消息中包括一个或多个满足需求的EAS信息。
在一些实施例中，多个候选的EAS构成候选的EAS列表，该EAS发现响应消息中包括候选的EAS列表。
在一些实施例中，EES可以向EEC发送EAS发现响应消息，该EAS发现响应消息还包含了用于指示是否已经向SMF或NEF请求执行路由影响的指示信息。在EES发送EAS发现响应消息前EES已经请求执行路由影响，则EAS发现响应消息包含的指示信息指示已经向SMF或NEF请求执行路由影响；在EES发送EAS发现响应消息前EES尚未请求执行路由影响，则EAS发现响应消息包含的指示信息指示尚未向SMF或NEF请求执行路由影响。
EES判断EAS的路径是否优化完成，EES将具有优化用户面路径的EAS返回至EEC，从而EEC可以进一步将具有优化用户面路径的EAS返回至应用客户端。
具体地，EES将具有优化用户面路径的EAS信息和/或该EAS的DNAI信息返回至EEC。应用客户端获取具有优化的用户面路径，有利于提升应用客户端获取应用服务器提供的应用服务的效率，有利于改善终端设备用户的应用体验。
在另一些实施例中，进一步地，该EAS发现响应消息还包括EAS是否具有优化的用户面路径的指示信息，或者包括EAS的路由影响是否完成的指示信息，或者EAS的用户面径是否优化完成的指示信息。
具体地，EES将EAS的信息和DNAI信息返回至EEC，该DNAI信息包括一个或多个DNAI和指示信息，该指示信息用于指示该一个或多个DNAI是否具有优化的用户面路径。
示例性地，该一个或多个DNAI可以以DNAI列表的形式表示，该指示信息可以包含在该DNAI列表中。
应用客户端在获取EAS是否具有优化的用户面路径的指示信息后可以根据指示信息选择具有优化的用户面路径的EAS连接并获取应用服务，本申请实施例的实施有利于提高应用客户端获取应用服务的效率。
本申请实施例中，EEC根据应用客户端的类型、应用客户端对时延的需求和应用服务器类型中的一种或多种，判断是否提前发起EAS发现流程，进一步的，EES接收EEC发送的EAS发现请求消息后判断是否立即触发执行路由影响流程，从而SMF或NEF为候选的EAS执行路由影响使其具有优化路径的DNAI，或者确定候选的EAS已经具有优化路径的DNAI从而无需再为该EAS执行路由影响。
图8是本申请实施例提供的另一种请求应用功能的方法示意图。
本申请实施例中，EEC根据应用客户端的指示信息确定预先执行EAS发现，EES根据EEC的指示信息，确定为该应用客户端预先执行路由影响。
S701，EEC确定预先触发执行EAS发现。
用于提供应用服务的EAS已经在EES上注册完成并保存在EES上，或者EES上已经预配置了EAS的相关信息(如DNAI信息)。
指示信息可以包括预先执行EAS发现指示和/或预先执行路由影响指示。
在一些实施例中，指示信息指示预先执行EAS发现，EEC根据预先执行EAS发现的指示信息确定预先触发执行EAS发现。
在另一些实施例中，指示信息指示预先执行路由影响，EEC根据预先执行路由影响的指示信息确定预先触发执行EAS发现。
在一些实施例中，EEC通过接收应用客户端向EEC发送的消息(如用于请求发现EAS的消息)获取应用客户端的指示信息。
在另一些实施例中，EEC通过其他方式获取应用客户端的指示信息。
示例性地，应用客户端在向使能客户端注册的过程中可以向使能客户端发送上述指示信息，或者在应用客户端的配置文件中携带上述指示信息，或者在应用客户端向使能客户端发送需要边缘计算服务的请求消息中携带上述指示信息。
EEC还可以根据指示信息确定是否预先执行路由影响。
在一些实施例中，指示信息指示预先执行EAS发现，EEC根据预先执行EAS发现的指示信息确定预先触发执行路由影响。
在另一些实施例中，指示信息指示预先执行路由影响，EEC根据预先执行路由影响的指示信息确定预先触发执行路由影响。
可选地，EEC根据指示信息确定预先执行路由影响，根据预先执行路由影响的判断结果，EEC确定预先执行EAS发现。
EEC响应于应用客户端的指示信息，立即触发执行EAS发现，可以使得EEC为不同运行状态的应用客户端服务，有利于提升EEC为不同应用客户端提供服务的整体效率，提升终端设备用户的使用体验。
S702，EEC向EES发送EAS发现请求消息。
该EAS发现请求消息用于请求发现一个或多个EAS为应用客户端提供应用服务，该发现请求还可以通过EAS发现订阅请求消息或EAS发现订阅更新请求消息等消息实现，本申请实施例对具体的承载消息不作限定。
EAS发现请求消息中还包括以下信息中的至少一项：EAS发现过滤参数、终端设备位置信息、终端设备特定服务信息和ECSP策略。EES在接收该EAS发现请求消息后可以根据EAS发现请求消息中的至少一项信息确定候选的EAS。
在一些实施例中，该EAS发现请求消息包括EAS发现过滤参数以及指示预先执行路由影响的指示信息。
在一个实施例中，EAS发现请求消息中新增时延要求相关信元，该信元用于存放指示信息。
示例性地，
信元名称：指示信息(instructions)；
信元状态：可选或必选；
信元描述：预先执行EAS发现和/或预先执行路由影响。
在另一个实施例中，EAS发现请求消息中使用现有的信元存放指示信息。
示例性地，该指示信息可以携带在EAS发现过滤参数中，或者应用客户端的特性列表中，或者应用客户端特性列表中的应用客户端配置文件中，或者EAS特性列表中，或者EAS特性列表的EAS配置文件中。
在一些实施例中，该EAS发现请求消息包括EAS发现过滤参数以及指示预先执行EAS发现的指示信息。
在另一些实施例中，该EAS发现请求消息包括EAS发现过滤参数、指示预先执行路由影响的指示信息和指示预先执行EAS发现的指示信息。
S703，EES确定立即执行路由影响。
EES可以选择一个或多个候选的EAS，具体可以根据EAS发现过滤参数，和/或终端设备的位置信息，和或终端设备的特定服务信息，和/或ECSP策略选择EAS。具体的EAS发现流程可以参考图2中的相关描述，在此不再赘述。
在一些实施例中，EES根据EAS发现请求消息中包含的预先执行路由影响的指示信息确定立即执行路由影响。
在另一些实施例中，EES根据EAS发现请求消息中包含的预先执行EAS发现的指示信息确定立即执行路由影响。
在又一些实施例中，EAS发现请求消息中包含预先执行EAS发现的指示信息和预先执行路由影响的指示信息，EES在接收该请求消息后，根据预先执行EAS发现的执行信息或预先执行路由影响的指示信息确定预先执行路由影响。
在又一些实施例中，EES根据EAS发现请求消息确定该请求消息为预先执行EAS发现的请求消息，根据该判断结果，EES确定立即执行路由影响。
根据应用客户端的指示信息确定立即执行路由影响，当EES同时为多个应用客户端提供服务时，发出指示信息的应用客户端的请求可以得到优先处理，有利于提高EES的服务质量，有利于提升边缘数据网络的服务效率。
可选地，EES还可以根据S505中描述的方法确定是否预先执行路由影响，详细确定方法可以参考S305，在此不再赘述。
S704，EES触发执行路由影响。
EES触发执行路由影响的过程具体可以参考图4所示实施例，此处不再赘述。
可选地，EES也可以向选定的EAS发送触发执行路由影响的指示信息，该指示信息用于指示选定的EAS为该EAS触发执行路由影响。EAS触发执行路由影响的详细内容可以参考图5所示实施例的相关描述。选定的EAS可以由EES确定，也可以由EEC确定后上报至EES，或者应用客户端确定后上报至EEC，EEC再上报至EES。
S705，EES发送EAS发现响应消息。
S705与S607的内容类似，具体可以参考S607，此处不再赘述。
本申请实施例中，EEC根据应用客户端的指示信息，判断提前发起EAS发现流程，进一步的，EES根据应用客户端的指示信息等判断预先触发执行路由影响流程，从而触发SMF或NEF执行EAS用户面路径的优化或者SMF或NEF在确定EAS已经具有优化路径的DNAI无需再执行路由影响。
图9是本申请实施例提供的又一种请求应用功能的方法示意图。
本申请实施例中，应用客户端根据应用信息确定预先向EEC请求触发执行EAS发现，应用客户端向EEC发送的请求消息中包括应用信息和指示信息，EEC接收到应用客户端的请求消息后确定是否提前执行EAS发现，EES根据EEC的EAS发现消息确定是否预先执行路由影响。
S801和S802为EAS在EES上进行注册的过程，该过程与S601和S602类似，详细内容可以参考S601和S602，为了简洁，在此不作赘述。
S803，应用客户端确定是否预先执行EAS发现和/或预先执行路由影响。
在一些实施例中，应用客户端根据应用客户端的应用类型判断预先发起EAS发现。
在另一些实施例中，应用客户端根据应用客户端的应用类型判断预先进行路由影响。
在一些实施例中，应用客户端根据应用客户端的时延需求判断预先发起EAS发现。
在另一些实施例中，应用客户端根据应用客户端的时延需求判断预先进行路由影响。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在一些实施例中，应用客户端根据应用客户端的应用服务器类型判断预先发起EAS发现。
在另一些实施例中，应用客户端根据应用客户端的应用服务器类型判断预先进行路由影响。
S804，应用客户端向EEC发送第一请求消息。
该第一请求消息包括应用信息和指示信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等，该指示信息包括预先执行EAS发现指示和/或预先执行路由影响指示。
在一些实施例中，该EAS发现请求消息用于触发EEC执行服务规则(service provisioning)和EAS发现。
应用信息中可以包含的应用类型、应用服务器类型或时延需求等中的一种或多种，既可以通过预先配置的方式配置到EEC上，也可以由应用客户端向EEC发送消息的方式发送到EEC，或者其他更多的方式被EEC获取，本申请对EEC获取应用信息中可以包含的信息的方式不作限定。
当第一请求消息中不包括应用信息中的一项或多项时，未包括的一项或多项信息可以通过如预配置的方式配置到EEC，这样，EEC可以结合通过多种渠道获取的应用信息的内容以及指示信息，进行综合判断。
S805，EEC确定是否提前执行EAS发现。
执行EAS发现是为了确定适合为应用客户端提供应用服务的EAS，以及该EAS的接入方式，这里提前执行EAS发现是指在应用客户端启动之前或应用客户端与EAS有数据交互之前执行EAS发现。
EEC根据应用信息和指示信息综合判断确定预先执行EAS发现。
示例性地，应用信息中的应用类型和/或时延需求显示该应用客户端不预先执行EAS 发现，但指示信息指示预先执行EAS发现，此时EEC在根据应用信息和指示信息的分别完成独立判断后，确定为该应用客户端预先执行EAS发现。
结合应用信息和指示信息综合判断是否预先执行EAS发现，有利于提高EEC在复杂服务环境(如不同的应用客户端、不同的服务需求)的适应性，有利于提升终端设备为用户提供服务的质量，提升用户的应用服务体验。
可选地，EEC根据应用信息和指示信息综合判断确定预先执行路由影响，根据预先执行路由影响的判断结果，EEC确定预先执行EAS发现。EEC确定预先执行路由影响的内容可以参见S503，为了简洁，在此不作赘述。
S806，EEC向EES发送EAS发现请求消息。
该EAS发现请求消息中包含应用信息和/或指示信息。
在一些实施例中，EAS发现请求消息中还包括以下信息中的一项或多项：EAS发现过滤参数、终端设备位置信息、终端设备特定服务信息或ECSP策略，EES在接收EAS发现请求消息后可以根据EAS发现请求消息中的上述信息中的至少一项选择候选的EAS。
在另一些实施例中，EAS发现请求消息中还包含用于指示该EAS发现请求为预先执行的EAS发现请求的指示信息。
S807，EES确定是否立即触发执行路由影响。
在一些实施例中，EES根据应用信息和指示信息综合判断确定是否立即触发执行路由影响。
示例性地，应用信息中的应用类型和/或时延需求显示该应用客户端不预先执行路由影响，但指示信息请求预先执行路由影响，此时EES在根据应用信息和指示信息的分别完成独立判断后，确定为该应用客户端预先执行路由影响。
EES可以根据以下信息中的一项或多项选择出一个或多个候选的EAS：EAS发现过滤参数、终端设备位置信息、终端设备特定服务信息或ECSP策略。一个或多个候选的EAS可以组成候选的EAS列表，EES可以在候选的EAS列表中选择一个或多个EAS，触发SMF或NEF为该一个或多个EAS执行路由影响。
在一些实施例中，EES接收应用信息和预先触发执行EAS发现的指示信息，EES根据应用信息确定不为该应用客户端预先执行路由影响，根据预先触发执行EAS发现的指示信息，EES确定预先执行EAS发现。
在另一些实施例中，EES接收应用信息和预先触发执行路由影响的指示信息，EES直接根据预先触发执行路由影响的指示信息，确定预先执行EAS发现和路由影响。
结合应用信息和指示信息综合判断是否预先执行EAS发现，有利于提高EES在复杂服务环境(如不同的应用客户端、不同的服务需求)的适应性，有利于提升边缘数据网络为应用客户端提供服务的质量，有利于提升应用客户端获取应用服务的效率。
S808，EES触发执行路由影响。
EES触发执行路由影响的过程具体可以参考图4所示实施例，此处不再赘述。
S809，EES发送EAS发现响应消息。
在一些实施例中，EES预先执行EAS发现，该发现响应消息中包括一个或多个EAS的信息。
在另一些实施例中，EES预先触发执行EAS发现和路由影响，该发现响应消息中包 括一个或多个EAS的信息和/或已经为该一个或多个EAS触发执行路由影响的指示信息。
可选地，该EAS发现响应消息中还可以包括该一个或多个EAS的路由影响已经完成的指示信息。
S810，EEC向应用客户端发送第一响应消息。
该第一响应消息用于将候选的EAS信息发送至应用客户端。
在一些实施例中，EEC从候选的EAS中选择一个触发执行了路由影响的EAS发送给应用客户端，可选地，EEC在该选定的EAS信息时还携带了该EAS已经触发执行路由影响的指示信息。
在一些实施例中，EEC从候选的EAS中选择一个已经完成路由影响的EAS发送给应用客户端，可选地，EEC在该选定的EAS信息时还携带了该EAS已经完成路由影响的指示信息。
具体地，EEC将具有优化用户面路径的EAS信息和/或该EAS的DNAI信息返回至应用客户端。
在另一些实施例中，EEC对候选的EAS不进行筛选，EEC将一个或多个EAS信息通过该第一响应消息发送给应用客户端，该第一响应消息中还包括EAS是否完成路由影响的指示信息。
具体地，EEC将EAS的信息和DNAI信息返回至应用客户端，该DNAI信息包括一个或多个DNAI和指示信息，该指示信息用于指示该一个或多个DNAI是否具有优化的用户面路径。
示例性地，该一个或多个DNAI可以以DNAI列表的形式表示，该指示信息也可以包含在该DNAI列表中。
S811，应用客户端检测返回的EAS是否完成路由影响。
在一些实施例中，应用客户端将选定的EAS发送至EEC，并请求获取该选定的EAS是否完成路由影响的指示信息。
在另一些实施例中，第一响应消息中包含了候选的EAS是否完成路由影响的指示信息(如EAS的DNAI信息)，应用客户端根据该指示信息确定选定的EAS是否完成路由影响。
应理解，当应用客户端确定返回的EAS已经完成路由影响或者具有优化的用户面路径或者用户面路径已经优化完成，则S812和S813无需执行。
S812，应用客户端向EAS发送请求执行路由影响的消息。
在一些实施例中，应用客户端在接收EAS发现响应消息后，检测返回的EAS不具有优化的用户面路径，应用客户端根据应用类型、时延需求等信息确定预先执行路由影响，应用客户端在启动前向选定的EAS发送连接请求消息，该连接请求消息中包括UE ID，EAS在接收该连接请求消息后触发执行路由影响。
由于已经获取了接入EAS的DNAI，应用客户端可以直接与该EAS进行连接，并请求该EAS直接触发执行路由影响。当应用客户端无法与EEC建立连接，无法通过EES为目标EAS触发执行路由影响时，该技术方案提供了为应用客户端获取应用服务的另一条途径，有利于提高应用客户端获取应用服务的稳定性。
在另一些实施例中，应用客户端向EEC发送请求执行路由影响的消息。
该请求执行路由影响的消息中可以包括应用信息和/或指示信息，EEC在接收该消息后可以根据应用信息和/或指示信息确定是否预先执行路由影响。具体的确定过程可以参考S503，为了简洁，在此不再赘述。
可选地，该请求执行路由影响的消息中还可以携带标识信息，该标识信息用于标识请求执行路由影响的目标EAS为预先执行的EAS发现流程发现的EAS，EEC在获取该标识信息后确定为该目标EAS预先触发执行路由影响。
可选地，EEC保存了获取目标EAS的EAS发现流程的信息，EEC可以通过识别该目标EAS，从而确定该EAS为预先执行的EAS发现流程发现的EAS，进而确定预先为该目标EAS触发执行路由影响。
EEC在确定预先为目标EAS触发执行路由影响后，将目标EAS的相关信息上报至EES，EES在接收该目标EAS的信息后，为目标EAS或者目标应用客户端触发执行路由影响，或者EES向目标EAS发送请求执行路由影响的消息，由目标EAS触发执行路由影响。
在又一些实施例中，在应用客户端确定选定的EAS具有优化的用户面路径的DNAI时，可以无需请求选定的EAS执行路由影响。
S813，EAS触发执行路由影响。
EAS触发执行路由影响的具体内容可以参考图5所示实施例的描述，在此不做赘述。
本申请实施例中，应用客户端根据客户端的类型或应用客户端对时延的需求确定提前执行EAS发现或路由影响，EEC根据应用信息和指示信息，判断是否提前发起EAS发现流程，进一步的，EES根据应用信息和/或指示信息等判断是否立即触发执行路由影响流程，即确定是否触发SMF或NEF执行路由影响，或者确定目标EAS是否具有优化的用户面路径。
图10是本申请实施例提供的又一种请求应用功能的方法示意图。
在本申请实施例中，EEC根据应用信息和指示信息综合确定是否预先执行EAS发现，EES路由影响在进行EAS选择后将候选的EAS直接反馈给EEC，EEC从候选的EAS中选定EAS后发送至EES，并请求EES为该选定的EAS执行路由影响，EES在接收EEC上报的选定的EAS相关信息(如应用服务器类型等)或接收到上报选定的应用服务器信息的上报事件后确定是否预先执行路由影响。
S901和S902为EAS在EES上进行注册的过程，该过程与S601和S602类似，详细内容可以参考S601和S602，为了简洁，在此不作赘述。
S903和S904分别与S805和S806类似，详细内容可以参考S805和S806，为了简洁，在此不作赘述。
S905，EES向EEC发送EAS发现响应消息。
在一些实施例中，EES可以不配置根据应用信息和/或指示信息判断是否预先执行路由影响的功能。EES在接收EEC的EAS发现请求消息后执行EAS发现，并将候选的一个或多个EAS信息反馈给EEC。
EES执行EAS发现的详细流程可以参考图2中相关描述。
该一个或多个EAS信息还可以通过EAS发现订阅响应消息或者通过EAS发现订阅更新响应消息或者EAS发现通知消息发送，本申请对具体的承载消息不做限定。
示例性地，当发现的一个或多个EAS满足应用客户端的应用服务需求时，EES向EEC发送EAS发现通知消息，该EAS发现通知消息中包括一个或多个满足需求的EAS信息。
S906，EEC选择目标EAS。
目标EAS又可以称为选定的EAS，是指从获取的候选一个或多个EAS中选择出的用于将为应用客户端提供应用服务的EAS。
根据EAS发现响应消息中反馈的候选的一个或多个EAS，EEC选择目标EAS。
可选地，该目标EAS也可以由使能服务器或者应用客户端来确定，应用客户端在选定EAS后可以将选定的EAS上报至EEC，在接收应用客户端选定的EAS后，EEC再将该选定的EAS上报至EES。
S907，EEC根据应用信息和指示信息确定是否预先执行路由影响。
在一些实施例中，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型和时延需求。
在一些实施例中，该指示信息包括预先执行EAS发现指示和/或预先执行路由影响指示。
在另一些实施例中，EEC根据应用客户端的指示信息确定预先触发执行路由影响。
在又一些实施例中，EEC根据应用客户端的应用信息确定预先执行路由影响。
在又一些实施例中，EEC结合应用信息和指示信息确定预先触发执行EAS发现。
示例性地，应用信息中的应用类型和/或时延需求显示该应用客户端不预先执路由影响，但指示信息请求预先执行路由影响，此时EEC在根据应用信息和指示信息的分别完成独立判断后，确定为该应用客户端预先执行路由影响。
EEC既可以判断应用客户端的请求是否预先执行路由影响，也可以判断应用客户端的请求是否预先执行路由影响，当EES未配置根据应用信息或指示信息判断是否预先执行路由影响的功能时，EEC可以在获取到候选的EAS信息后请求EES触发执行选定EAS的路由影响。本技术方案有利于提升边缘数据网络为应用客户端提供应用服务的稳定性，有利于提升应用客户端获取应用服务的体验。
S908，EEC向EES发送为目标EAS执行路由影响的指示消息。
该指示消息中包括目标EAS信息以及可以接入目标EAS的一个或多个DNAI。
在一些实施例中，该指示消息还可以包括预先执行路由影响的指示信息和/或应用信息。
在一些实施例中，EEC先向EES发送目标EAS信息以及接入目标EAS的一个或多个DNAI，再根据应用信息和/或指示信息判断预先执行路由影响，并根据该判断结果，EEC再向EES发送预先执行路由影响的指示信息。
目标EAS又可以称为选定的EAS，该目标EAS信息可以承载在选定的边缘应用服务器上报(selected EAS declearation)消息中，或者也可以承载在其他消息中，本申请对此不作限定。选定的边缘应用服务器上报消息中还可以包括应用信息和/或指示信息，EES在接收到该选定的边缘应用服务器上报消息后，可以确定是否预先为选定的EAS执行路由影响。该确定过程可以参考S505，在此不作赘述。
S909，EES确定是否预先执行路由影响。
在一些实施例中，EES根据EEC上报的选定的应用服务器的信息确定是否预先执行 路由影响。
在另一些实施例中，EES根据EEC上报的选定的应用服务器的信息的上报事件后确定预先执行路由影响。
示例性地，EES在获取EEC上报的选定应用服务器的上报事件后立即触发为选定的应用服务器预先执行路由影响。
本技术方案中，将终端设备的上报信息或上报事件作为EES确定是否预先执行路由影响的判定依据，判定依据可以由终端设备生成，判断过程由边缘数据网络执行。该技术方案的执行有利于边缘数据网络对不同终端设备获取应用服务的进程管理，有利于提高边缘数据网络提供应用服务的效率，有利于维持边缘数据网络的服务的稳定，有利于提高终端设备获取应用服务的效率，有利于减少网络资源的浪费。
S910，EES触发执行路由影响。
EES触发执行路由影响的过程具体可以参考图4所示实施例，此处不再赘述。
S911，EES向EEC发送确认消息。
该确认消息用于指示已经为选定的EAS执行路由影响。
可选地，该确认消息还用于指示选定的EAS的路由影响是否完成。
本申请实施例中，EEC根据应用客户端的指示信息和/或应用信息，判断提前发起EAS发现流程，EES将候选的EAS反馈给EEC后，EEC再次判断预先执行路由影响，并将选定的EAS发送给EES，EES根据上报的选定EAS信息或者上报选定的EAS的上报事件触发执行路由影响为目标EAS执行用户面路径的优化，或者确定目标EAS具有优化用户面路径的DNAI从而无需执行路由影响。
图11是本申请实施例提供的又一种请求应用功能的方法示意图。
本申请实施例中，应用客户端根据应用类型、应用服务器类型或时延需求等，在执行EAS发现流程后，确定是否预先执行路由影响。
S1001和S1002为EAS在EES上进行注册的过程，该过程与S601和S602类似，详细内容可以参考S601和S602，为了简洁，在此不作赘述。
S1003，EEC确定是否提前执行EAS发现。
S1003的内容与S603的内容类似，具体可以参考S603，为了简洁，在此不再赘述。
可选地，EEC还可以根据应用信息和/或指示信息确定是否预先执行EAS发现。
可选地，应用信息和/或指示信息可以由应用客户端发送至EEC，即在S1003之前还可以包括EEC从应用客户端接收应用信息和/或指示信息的步骤。
S1004，EEC向EES发送EAS发现请求消息。
S1004的内容与S604类似，具体可以参考S604，为了简洁，在此不再赘述。
S1005，EES向EEC发送EAS发现响应消息。
S1005的内容与S607类似，具体可以参考S607，为了简洁，在此不再赘述。
S1006，EEC向应用客户端发送第一响应消息。
S1006的内容与S810类似，具体可以参考S810，为了简洁，在此不再赘述。
S1007，应用客户端判断是否提前请求EAS执行路由影响。
在一些实施例中，应用客户端根据业务对时延的需求确定提前执行路由影响。
在另一些实施例中，应用客户端根据业务对时延的需求确定不提前执行路由影响。
在一些实施例中，应用客户端根据应用客户端的类型确定提前执行路由影响。
在另一些实施例中，应用客户端根据应用客户端的类型确定不提前执行路由影响。
在一些实施例中，应用客户端根据应用服务器的类型确定提前执行路由影响。
在另一些实施例中，应用客户端根据应用服务器的类型确定不提前执行路由影响。
在一些实施例中，应用客户端根据以下信息中的一种或多种确定提前执行路由影响：业务类型、应用客户端类型、应用服务器类型或时延需求。
在另一些实施例中，应用客户端根据以下信息中的一种或多种确定不提前执行路由影响：业务类型、应用客户端类型、应用服务器类型或时延需求。
在另一些实施例中，应用客户端根据S1003中保存的判断结果确定提前执行路由影响。
在又一些实施例中，应用客户端向EEC发送查询消息，从而获取一个或多个应用服务器是否完成路由影响的指示信息，应用客户端在确定应用服务器是否完成路由影响后再确定是否预先执行路由影响。
S1008，应用客户端向EAS发送执行路由影响请求消息。
应用客户端向选定的EAS发送请求触发执行路由影响的指示信息，选定的EAS可以由应用客户端确定，也可以由EEC或者EES确定。
S1008的内容与S812类似，具体可以参考S812，为了简洁，在此不再赘述。
对于未配置根据应用信息或指示信息判断是否预先执行EAS发现的EEC和未配置根据应用信息或指示信息判断是否预先执行路由影响的EES，应用客户端可以在获取候选EAS的连接方式后，自行判断是否预先执行路由影响，在需要预先执行路由影响时，应用客户端可以直接请求目标EAS触发执行为目标EAS执行路由影响的请求。本技术方案有利于提升应用客户端获取应用服务的稳定性，有利于提升应用客户端获取应用服务的质量与效率。
S1009，EAS触发执行路由影响。
EAS触发执行路由影响的过程具体可以参考图5所示实施例，此处不再赘述。
即，应用客户端在确定选定的EAS后可以直接向选定的EAS请求触发执行路由影响，或者，应用客户端也可以将选定的EAS上报至EEC，最终由EES触发或者由EES请求选定的EAS触发执行路由影响。
S1010，EAS发送确认消息至应用客户端。
在一些实施例中，EAS在收到SMF或NEF发送的目标DNAI信息后，确定EAS具有优化的用户面路径，EAS发送确认消息至应用客户端，该确认消息指示返回的EAS具有优化的用户面路径。
本申请实施例中，在执行EAS发现流程后应用客户端获取了候选的EAS列表，应用客户端在需要获取应用服务前根据应用类型或者应用客户端对时延的需求判断预先执行路由影响，从而触发EAS预先执行路由影响。
图12是本申请实施例提供的又一种请求应用功能的方法示意图。
在本申请实施例中，ECS根据应用信息和/或指示信息确定是否预先执行路由影响，该路由影响用于为UE-EES之间建立优化的用户面路径。
S1101，EES向ECS发送EES注册请求消息。
该注册请求消息用于请求在ECS上注册EES，该注册请求消息可以包括EES配置文 件(EES profile)，该EES配置文件包括DNAI列表，终端设备或应用客户端通过DNAI列表中的DNAI可以接入到EES。
在一些实施例中，EES向ECS发送EES注册更新请求消息，该EES注册更新请求消息用于请求更新已经在ECS上注册的EES的注册信息。
可选地，EES的DNAI信息可以直接包括在注册请求消息中。
可选地，EES的相关信息(如EES的DNAI信息)也可以通过预配置的方式配置在ECS上。
S1102，ECS向EES发送注册响应消息。
该注册响应消息用于指示EES的注册是否成功。在ECS接收EES发送的注册更新请求消息的情况下，ECS向EES发送EES注册更新响应消息。
在EES注册成功时，该注册响应消息可以包括：EES注册的ID、EES注册到期的时间。在EES注册失败时，该注册响应消息可以包括EES注册失败的原因信息。
S1103，应用客户端判断是否预先执行EES发现和/或预先执行路由影响。
在一些实施例中，应用客户端根据应用客户端的应用类型判断预先发起EES发现，则应用客户端可以提前向EEC请求发现EES。
在另一些实施例中，应用客户端根据应用客户端的应用类型判断预先进行路由影响，则应用客户端可以提前向EEC请求发现EES。
在一些实施例中，应用客户端根据应用客户端的时延需求判断预先发起EES发现，则应用客户端提前向EEC请求发现EES。
在另一些实施例中，应用客户端根据应用客户端的时延需求判断预先进行路由影响，则应用客户端可以提前向EEC请求发现EES。
时延需求可以为首包的时延需求或者应用客户端的时延需求或者应用客户端需要的应用服务器的时延需求。这里首包是指应用客户端与应用服务器通信过程中，应用客户端向应用服务器发送的第一个数据包，即应用客户端与应用服务器数据交互中的第一个数据包。
首包的时延需求可以用于指示应用客户端与应用服务器进行数据交互过程中，所有数据包的整体的时延需求或者平均的时延需求。
或者，首包的时延需求也可以用于指示应用客户端与应用服务器进行数据交互过程中，特定时间段内或者部分或全部数据包的时延需求的特征值，示例性地，应用客户端与应用服务器第一次交互过程中所有数据包时延需求的算术平均值或几何平均值。
在一些实施例中，应用客户端根据应用客户端的应用服务器类型判断预先发起EES发现，则应用客户端提前向EEC请求发现EES。
在另一些实施例中，应用客户端根据应用客户端的应用服务器类型判断预先进行路由影响，则应用客户端可以提前向EEC请求发现EES。
在一些实施例中，应用客户端不对是否预先执行EES发现和/或预先执行路由影响进行判断，该判断可以通过EEC来执行，即S1103是可选地。
S1104，应用客户端向EEC发送第一请求消息。
该第一请求消息包括应用信息和/或指示信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等，该指示信息包括预先执行EES发现指 示和/或预先执行路由影响指示。
在一些实施例中，应用客户端的应用信息通过预配置的方式配置到EEC，应用客户端不向EEC发送第一请求消息，即S1104是可选地。
应用信息中可以包含的应用类型、应用服务器类型或时延需求等中的一种或多种，既可以通过预先配置的方式配置到EEC上，也可以由应用客户端向EEC发送消息的方式发送到EEC，或者其他更多的方式被EEC获取，本申请对EEC获取应用信息中可以包含的信息的方式不作限定。
当第一请求消息中不包括应用信息中的一项或多项时，未包括的一项或多项信息可以通过如预配置的方式配置到EEC，这样，EEC可以结合通过多种渠道获取的应用信息的内容以及指示信息，进行综合判断。
S1105，EEC确定是否预先执行EES发现。
执行EES发现是为了确定适合为终端设备提供服务的EES以及该EES的接入方式。预先执行EES发现是指在应用客户端启动之前或终端设备与EES有数据交互之前执行EES发现，预先执行又可以称为提前执行或立即执行等。
通过EES发现流程确定的适合为终端设备提供服务的EES可以称为候选的EES，具体的EES发现流程可以参考图3的相关描述。
EEC可以根据应用信息确定是否预先执行EES发现，其中，应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
EEC也可以根据指示信息确定是否预先执行EES发现，其中，指示信息包括预先执行EES发现指示和/或预先执行路由影响指示。
或者，EEC也可以根据应用信息和指示信息确定是否预先执行EES发现。
或者，EEC也可以根据应用信息和/或指示信息确定预先执行路由影响，根据该判断结果，EEC确定预先执行EES发现。
EEC根据应用信息和/或指示信息确定是否预先执行EES发现的内容与EEC根据应用信息和/或指示信息确定是否预先执行EAS的内容类似，具体可以参考S304、S603、S501和S805等，为了简洁在此不再赘述。
当确定不预先执行EES发现，S1106至S1110可以不再执行。可选地，EEC保存不预先执行EES发现的判断结果。
可选地，EEC可以向应用客户端发送未预先执行EES发现的指示信息，这部分内容与后文中图15所示的实施例的描述类似，具体可以参考图15所示的实施例，此处不做详细介绍。
EEC在发送请求执行EES发现请求消息前首先对是否预先执行EES发现进行判断，判断的依据为应用客户端本身属性和/或终端设备的运行状态的相关信息，该判断的执行，可以使得EEC为应用客户端的服务时能够依据应用客户端的不同和运行状态的不同，进行差异性服务，有利于提高终端设备的服务效率，有利于合理调配终端设备的资源，有利于提高用户的应用使用体验。
S1106，EEC向ECS发送服务提供请求消息。
该服务提供请求消息用于请求发现一个或多个EES为终端设备提供服务，该服务提供请求还可以携带在EES发现订阅请求消息或EES发现订阅更新请求消息等消息中，本 申请实施例对具体的承载消息不作限定。
服务请求消息中包括以下信息中的一项或多项：终端设备的位置、服务需求、服务偏好或连接性。ECS可以根据上述信息中的一种或多种确定一个或多个可以为终端设备提供服务的EES。
在一些实施例中，服务请求消息中包含应用客户端类型。
在一个实施例中，服务请求消息中包含应用客户端配置文件，该应用客户端配置文件中包括应用客户端类型。
在另一些实施例中，服务提供请求消息中包括应用客户端对时延要求的信息。
在一个实施例中，服务提供请求消息中新增时延要求相关信元，该信元用于存放应用客户端的时延需求。
示例性地，
信元名称：时延需求(delay requirement)；
信元状态：可选或必选；
信元描述：小于或等于0.1ms。
在另一个实施例中，服务提供请求消息中使用现有的信元存放应用客户端的时延需求。
在一些实施例中，服务提供请求消息中包含应用服务器类型。
在一个实施例中，服务提供请求消息中包含一个或多个可以确定应用服务器类型的服务关键性能指标。
示例性地，服务提供请求消息中包含应用服务器的服务关键性能指标参数中的至少一种：连接带宽、请求速率、响应时间、可用性、所需的计算资源、图像计算资源、内存资源和存储资源。
在一些实施例中，该服务提供请求消息包括指示预先执行路由影响的指示信息和/或预先执行EES发现的指示信息。
在一个实施例中，EAS发现请求消息中新增时延要求相关信元，该信元用于存放指示信息。
示例性地，
信元名称：指示信息(instructions)；
信元状态：可选或必选；
信元描述：预先执行EES发现和/或预先执行路由影响。
在另一个实施例中，EES发现请求消息中使用现有的信元存放指示信息。
S1107，ECS确定是否预先执行路由影响。
路由影响立即执行又可以称为提前执行或预先执行。由于路由影响由SMF或NEF执行，这里执行可以理解为触发执行。
ECS根据应用信息和/或指示信息确定是否预先执行路由的内容与EES根据应用信息和/或指示信息确定是否预先执行路由影响的内容类似，具体可以参考S505、S605、S503和S803，为了简洁在此不再赘述。
S1108，ECS触发执行路由影响。
S1108中ECS触发执行路由影响的内容与图4中EES触发执行路由影响的内容类似，示例性地，ECS触发执行路由影响的过程中ECS向SMF发送应用功能请求消息，该内容 与图4中S301EES向SMF发送应用功能请求消息的内容类似，具体内容可以参考图4的相关描述，此处不做赘述。
可选地，也可以由EES触发执行路由影响，由EES触发执行路由影响的内容与图5中EAS触发执行路由影响的内容类似，示例性地，EES触发执行路由影响的过程中EES向SMF发送应用功能请求消息，该内容与图5中S401EAS向SMF发送应用功能请求消息的内容类似，具体内容可以参考图5的相关描述，此处不做赘述。
当确定不预先执行路由影响，S1108至S1110可以不再执行。可选地，ECS保存不预先执行路由影响的判断结果。
可选地，ECS可以向EEC发送未预先执行路由影响的指示信息，这部分内容与后文中图14所示的实施例的描述类似，具体可以参考图14所示的实施例，此处不做详细介绍。
S1109，ECS向EEC发送服务提供响应消息。
该服务提供响应消息用于将候选的一个或多个EES信息返回至EEC，该一个或多个EES信息还可以通过EES发现订阅响应消息或者通过EES发现订阅更新响应消息或者EES发现通知消息发送，具体的承载消息在本申请中不做限定。
在一些实施例中，ECS可以向EEC发送服务提供响应消息，该服务提供响应消息还包含了用于指示是否已经向SMF或NEF请求执行路由影响的指示信息。在ECS发送服务提供响应消息前ECS已经请求执行路由影响，则服务提供响应消息包含的指示信息指示已经向SMF或NEF请求执行路由影响；在ECS发送服务提供响应消息前ECS尚未请求执行路由影响，则服务提供响应消息包含的指示信息指示尚未向SMF或NEF请求执行路由影响。
在一些实施例中，ECS判断EES的路径是否优化完成，ECS将具有优化用户面路径的EES返回至EEC，从而EEC可以进一步将具有优化用户面路径的EES返回至应用客户端。
具体地，EES将具有优化用户面路径的EES信息和/或该EES的DNAI信息返回至EEC。应用客户端获取具有优化的用户面路径，有利于提升应用客户端获取应用服务器提供的应用服务的效率，有利于改善终端设备用户的应用体验。
在另一些实施例中，该服务提供响应消息包括EES信息以及EES是否具有优化的用户面路径的指示信息。
具体地，ECS将EES的信息和DNAI信息返回至EEC，该DNAI信息包括一个或多个DNAI和指示信息，该指示信息用于指示该一个或多个DNAI是否具有优化的用户面路径。
示例性地，该一个或多个DNAI可以以DNAI列表的形式表示，该指示信息可以包含在该DNAI列表中。
应用客户端在获取EES是否具有优化的用户面路径的指示信息后可以根据指示信息选择具有优化的用户面路径的EES连接并获取应用服务，本申请实施例的实施有利于提高应用客户端获取应用服务的效率。
S1110，EEC向应用客户端发送第一响应消息。
该第一响应消息用于将候选的一个或多个的EES信息发送至应用客户端。
在一些实施例中，EEC从候选的一个或多个EES中选择一个已经完成路由影响的EES 发送给应用客户端，可选地，该第一响应消息还用于指示该EES已经触发执行路由影响的指示信息。
具体地，EEC将具有优化用户面路径的EES信息和/或该EES的DNAI信息返回至应用客户端。
在另一些实施例中，EEC对候选的一个或多个EES不进行筛选，EEC将一个或多个EES信息通过该第一响应消息发送给应用客户端，该第一响应消息中还包括一个或多个EES是否触发执行路由影响的指示信息。
具体地，EEC将EES的信息和DNAI信息返回至应用客户端，该DNAI信息包括一个或多个DNAI和指示信息，该指示信息用于指示该一个或多个DNAI是否具有优化的用户面路径。
示例性地，该一个或多个DNAI可以以DNAI列表的形式表示，该指示信息也可以包含在该DNAI列表中。
可选地，第一响应消息还用于指示一个或多个EES是否已经完成路由影响。
应理解，图12所示为ECS根据判定信息为EES触发执行路由影响的一种可能的实施情况，图4至图11中描述的应用客户端、EEC或EES根据判定信息为EAS触发执行路由影响的技术内容，本领域技术人员在不付出创造性劳动的基础上也可以引申运用到图12所示的实施例中，从而形成新的实施方式。出于清楚、简洁的目的考虑，本申请未一一列出描述。
以上结合图4至图12详细介绍了当确定预先执行路由影响的部分实施例，以下结合图13和图14详细介绍当EEC确定不预先执行EAS发现和/或不预先执行路由影响以及EES确定不预先执行路由影响的实施例。当EEC确定不预先执行EES发现和/或不预先执行路由影响以及ECS确定不预先执行路由影响的实施内容与之类似，可以参考执行。
图13为本申请实施例提供的又一种请求应用功能的方法示意图。
本申请实施例中，EEC确定预先执行EAS发现，EES根据应用信息确定不预先执行路由影响。
S1201，EEC确定是否预先执行EAS发现。
EEC确定是否预先执行EAS发现的方法与图6中S501描述内容类似，具体可以参考S501，在此不再赘述。
S1202，EEC发送EAS发现请求消息。
EEC向EES发送的EAS发现请求消息中包括应用信息，该应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求等。
可选地，该EAS发现请求消息中还可以包括预先执行EAS发现的指示信息。
S1203，EES确定是否预先执行路由影响。
EES根据EAS发现请求消息中包括的应用信息确定不预先执行路由影响。
S1204，可选地，EES保存不预先执行路由影响的判断结果信息。
判断结果信息包括以下信息中的一项或多项：不预先执行路由影响的判断结果、应用客户端标识或一个或多个EAS信息，该一个或多个EAS通过EAS发现流程确定。
该保存的不预先执行路由影响的判断结果信息用于EES下一次为同一应用客户端(目标应用客户端)确定是否预先执行路由影响。
具体地，当EES接收到EEC发送的目标应用客户端的应用信息时，EES可以不再根据应用信息确定是否预先执行路由影响，EES可以根据不预先执行路由影响的判断结果信息，确定不为目标应用客户端预先执行路由影响。当EES接收到EEC发送的为目标应用客户端预先执行路由影响的指示信息时，EES确定预先执行路由影响。
在一些实施例中，EES接收的EEC发送的EAS发现请求消息中包括预先执行EAS发现的指示信息，EES根据该预先执行EAS发现的指示信息预先执行EAS发现流程，为目标应用客户端确定一个或多个EAS，该一个或多个EAS也可以称为候选的EAS。
当EES预先执行了EAS发现流程时，判断结果信息中可以包括一个或多个EAS的信息。
S1205，可选地，EES向EEC发送指示信息。
该指示信息用于指示未预先执行路由影响，该指示信息可以包括以下信息中的一项或多项：不预先执行路由影响的判断结果、应用客户端标识或一个或多个EAS信息，该一个或多个EAS为EES通过EAS发现流程确定的一个或多个EAS。
当指示信息包括不预先执行路由影响的判断结果和应用客户端标识，EEC可以根据接收的判断结果信息，确定不预先为目标应用客户端执行EAS发现，无需根据应用信息确定。
当指示信息中包括不预先执行路由影响的判断结果、应用客户端标识和一个或多个EAS的信息时，EEC可以从该一个或多个EAS中确定选定的EAS，EEC可以将选定的EAS上报至EES，从而触发EES为选定的EAS执行路由影响。
可选地，EEC也可以将选定的EAS的信息发送至应用客户端，应用客户端在获取选定的EAS的信息后，可以直接请求选定的EAS触发执行路由影响。
可选地，EEC也可以将一个或多个EAS的信息发送至应用客户端，应用客户端根据从该一个或多个EAS中确定选定的EAS，进而将选定的EAS发送至EEC，进而EEC请求EES为该选定的EAS触发执行路由影响。或者，应用客户端请求选定的EAS触发执行路由影响
在一些实施例中，EEC保存指示信息，保存的判断结果可以用于下一次EEC判断是否预先为该应用客户端预先执行EAS发现或路由影响。
在一些实施例中，EEC将不预先执行路由影响的判断结果发送至应用客户端，应用客户端根据该不预先执行路由影响的判断结果，执行相应的操作。
示例性地，应用客户端根据不预先执行路由影响的判断结果，向EEC发送预先执行路由影响的指示信息，指示为该应用客户端预先执行路由影响。
示例性地，当应用客户端接收不预先执行路由影响的判断结果和一个或多个EAS的信息或选定的EAS信息，应用客户端可以向选定的EAS请求预先执行路由影响。
图14为本申请实施例提供的又一种请求应用功能的方法示意图。
本申请实施例中，EEC根据应用信息确定不预先执行EAS发现和/或不预先执行路由影响。
S1301，EEC确定是否预先执行EAS发现和/或预先执行路由影响。
S1301中EEC确定是否预先执行EAS发现和/或预先执行路由影响的内容与图6中S501内容类似，具体可以参考S501，在此不再赘述。
S1302，可选地，EEC保存不预先执行EAS发现和/或不预先执行路由影响的判断结果。
当EEC根据应用信息确定不预先执行EAS发现，EEC可以保存该不预先执行EAS发现的判断结果，该判断结果可以用于以后EEC确定为同一应用客户端(目标应用客户端)是否预先执行EAS发现和/或预先执行路由影响。
S1303，可选地，EEC向应用客户端发送指示信息。
该指示信息用于指示未预先执行EAS发现，该指示信息可以包括不预先执行EAS发现的判断结果。目标应用客户端根据该不预先执行EAS发现的判断结果，执行相应的操作。
可选地，在应用客户端向EEC请求和/或订阅判断结果的情况下，应用客户端在确定不预先执行EAS发现的判断结果后，向应用客户端发送指示信息。
示例性地，目标应用客户端根据不预先执行EAS发现的判断结果，向EEC发送预先执行EAS发现和/或预先执行路由影响的指示信息。应理解，以上图2至图14为本申请提供的部分实施例，本领域技术人员还可以通过不同实施例之间步骤的结合或步骤执行顺序的调整得到新的实施例，举例而言，图7中S605可以与图12中S903可以进行结合，图7中S601或S602可以在S603之后执行，图7中S608可以在S607之前执行，为了简洁，本申请中未列出通过上述方式得到的实施例，应理解，这部分实施例也应落入本申请请求保护的范围内。
基于与以上方法实施例相同的发明构思，本申请实施例还提供了一种通信装置，该通信装置可具备上述方法实施例中的使能服务器、使能客户端和应用客户端的功能，并可用于执行上述方法实施例中由使能服务器或使能客户端或应用客户端的功能执行的步骤。所述功能可以通过硬件实现，也可以通过软件或者硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的实现方式中，如图15所示的通信装置1500可作为上述方法实施例所涉及的使能服务器，并执行上述方法实施例中由使能服务器执行的步骤。
如图15所示，该通信装置1500可包括收发单元1510和处理单元1520，以上收发单元1510和处理单元1520之间相互耦合。
收发单元1510可用于支持通信装置1100进行通信，例如执行图2、图4、图6、图7、图8、图9、图10和图11等中的S101、S103、S301、S504、S602、S604、S702、S705、S806、S908和S1005等由使能服务器执行的发送和/或接收的动作。
处理单元1520可用于支持所述通信装置1500执行上述方法实施例中的处理动作，例如执行图2、图6、图7、图8和图9等中的S102、S505、S605、S606、S703、S704和S807等由使能服务器执行的处理动作。
在另一种可能的实现方式中，如图15所示的通信装置1500可作为上述方法实施例所涉及的使能客户端，并执行上述方法实施例中由使能客户端执行的步骤。
如图15所示，该通信装置1500可包括收发单元1510和处理单元1520，收发单元1510和处理单元1520之间相互耦合。
收发单元1510可用于支持通信装置1500进行通信，例如执行图2、图3、图6、图7、图8、图9、图10、图11和图12等中的S101、S103、S201、S203、S502、S504、S804、 S807、S702、S705、S804、S806、S809、S810、S904、S905、S1004、S1005、S1008、S1010、S1104、S1106、S1109和S1110等由使能客户端执行的发送和/或接收的动作。
处理单元1520可用于支持所述通信装置1500执行上述方法实施例中的处理动作，例如执行图6、图7、图8、图9、图10和图11等中的S503、S603、S701、S805、S903、和S1003等由使能客户端执行的处理动作。
在又一种可能的实现方式中，如图15所示的通信装置1500可作为上述方法实施例所涉及的应用客户端，并执行上述方法实施例中由应用客户端执行的步骤。
如图15所示，该通信装置1500可包括收发单元1510和处理单元1520，收发单元1510和处理单元1520之间相互耦合。
收发单元1510可用于支持通信装置1500进行通信，例如执行图6、图9、图11、图12和图14中的S501、S804、S810、S1006、S1103和S1303等由应用客户端执行的发送和/或接收的动作。
处理单元1520可用于支持所述通信装置1500执行上述方法实施例中的处理动作，例如执行图6、图9、图11和图12中的S501、S803、S811、S1007和S1103等由应用客户端执行的处理动作。
在又一种可能的实现方式中，如图15所示的通信装置1500可作为上述方法实施例所涉及的应用服务器，并执行上述方法实施例中由应用服务器执行的步骤。
如图15所示，该通信装置1500可包括收发单元1510和处理单元1520，收发单元1510和处理单元1520之间相互耦合。
收发单元1510可用于支持通信装置1500进行通信，例如执行图5、图7、图9、图10和图11等中的S401、S402、S601、S602、S801、S802、S812、S901、S901和S1010等由应用服务器执行的发送和/或接收的动作。
处理单元1520可用于支持所述通信装置1500执行上述方法实施例中的处理动作，例如执行图9和图11等中的S813和S1009等由应用服务器执行的处理的动作。
在又一种可能的实现方式中，如图15所示的通信装置1500可作为上述方法实施例所涉及的边缘配置服务器，并执行上述方法实施例中由边缘配置服务器执行的步骤。
如图15所示，该通信装置1500可包括收发单元1510和处理单元1520，收发单元1510和处理单元1520之间相互耦合。
收发单元1510可用于支持通信装置1500进行通信，例如执行图3和图12等中的S201、S203、S1101、S1102、S1106和S1109等由边缘配置服务器执行的发送和/或接收的动作。
处理单元1520可用于支持所述通信装置1500执行上述方法实施例中的处理动作，例如执行图3和图12等中的S202、S1107和S1108等由边缘配置服务器执行的处理动作。
可选的，通信装置1500还可以包括存储单元1530，用于存储通信装置1500的程序代码和数据。
图16是本申请实施例提供的通信设备1600的示意性框图。如图所示，该通信设备1600包括：至少一个处理器1610和收发器1620。该处理器1610与存储器耦合，用于执行存储器中存储的指令，以控制收发器1620发送信号和/或接收信号。
可选地，该通信设备1600还包括存储器1630，用于存储指令。
在一些实施例中，上述处理器1610和存储器1630可以合成一个处理装置，处理器 1610用于执行存储器1630中存储的程序代码来实现上述功能。具体实现时，该存储器1630也可以集成在处理1610中，或者独立于处理器1610。
在一些实施例中，收发器1620可以包括接收器(或者称，接收机)和发射器(或者称，发射机)。
收发器1620还可以进一步包括天线，天线的数量可以为一个或多个。收发器1620有可以是通信接口或者接口电路。
当该通信设备1600为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路或通信接口；处理单元可以为该芯片上集成的处理器或者微处理器或者集成电路。
在实现过程中，上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
本申请实施例还提供一种计算机可读存储介质，其上存储有用于实现上述方法实施例中由通信设备执行的方法的计算机指令。
例如，该计算机程序被计算机执行时，使得该计算机可以实现上述方法实施例中由通信设备执行的方法。
上述提供的任一种装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
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，服务器，或者网络设备等)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以所述权利要求的保护范围为准。

Claims (28)

  1. 一种请求应用功能的方法，其特征在于，包括：
    使能服务器根据第一判定信息确定是否预先执行路由影响；
    当确定预先执行路由影响，所述使能服务器发送应用功能请求消息，所述应用功能请求消息用于请求为一个或多个应用服务器执行路由影响。
  2. 根据权利要求1所述的方法，其特征在于，所述第一判定信息包括应用信息，所述应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一判定信息包括指示信息，所述指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    所述使能服务器发送发现响应消息，所述发现响应消息用于指示已经为所述一个或多个应用服务器执行路由影响。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，当确定预先执行路由影响，所述方法还包括：
    所述使能服务器向选定的应用服务器发送第一指示消息，所述第一指示消息用于指示预先触发执行路由影响，所述一个或多个应用服务器包括所述选定的应用服务器。
  6. 根据权利要求2所述的方法，其特征在于，所述时延需求包括以下中的任一种：首包的时延需求、应用客户端的时延需求或所述应用客户端需要的应用服务器的时延需求。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述预先执行路由影响包括：在应用客户端启动之前执行路由影响或在所述应用客户端与应用服务器有数据交互之前执行路由影响。
  8. 一种请求应用功能的方法，其特征在于，包括：
    使能客户端根据第二判定信息确定是否预先执行路由影响；
    当确定预先执行路由影响，所述使能客户端发送应用服务器发现请求消息，所述应用服务器发现请求消息用于请求发现一个或多个应用服务器，所述一个或多个应用服务器用于为应用客户端提供应用服务。
  9. 根据权利要求8所述的方法，其特征在于，所述第二判定信息包括应用信息，所述应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求。
  10. 根据权利要求8或9所述的方法，其特征在于，所述第二判定信息包括指示信息，所述指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，所述确定是否预先执行路由影响包括：
    所述使能客户端确定是否预先执行应用服务器发现。
  12. 根据权利要求8至11中任一项所述的方法，其特征在于，所述方法还包括：
    所述使能客户端接收使能服务器发送的发现响应消息，所述发现响应消息用于指示已经为所述一个或多个应用服务器执行路由影响；
    所述使能客户端向应用客户端发送第一响应消息，所述第一响应消息包括所述一个或 多个应用服务器的信息，所述第一响应消息还用于指示已经为所述一个或多个应用服务器执行路由影响。
  13. 根据权利要求9所述的方法，其特征在于，所述时延需求包括以下中的任一种：首包的时延需求、应用客户端的时延需求或所述应用客户端需要的应用服务器的时延需求。
  14. 根据权利要求8至13中任一项所述的方法，其特征在于，所述预先执行路由影响包括：在应用客户端启动之前执行路由影响或在所述应用客户端与应用服务器有数据交互之前执行路由影响。
  15. 一种请求应用功能的方法，其特征在于，包括：
    应用客户端根据应用信息确定是否预先执行应用服务器发现和/或预先执行路由影响，所述应用信息包括以下信息中的一项或多项：应用类型、应用服务器类型或时延需求；
    当确定预先执行应用服务器发现和/或预先执行路由影响，所述应用客户端向使能客户端发送第一请求消息。
  16. 根据权利要求15所述的方法，其特征在于，所述第一请求消息包括所述应用信息和/或指示信息，所述指示信息用于指示预先执行应用服务器发现和/或预先执行路由影响。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述应用客户端接收第一响应消息，所述第一响应消息包括一个或多个应用服务器的信息，所述第一响应消息还用于指示已经为所述一个或多个应用服务器执行路由影响。
  18. 根据权利要求15至17中任一项所述的方法，其特征在于，当确定预先执行应用服务器发现和/或路由影响，所述方法还包括：
    所述应用客户端向选定的应用服务器发送第二指示消息，所述第二指示消息用于指示预先触发执行路由影响，所述一个或多个应用服务器包括所述选定的应用服务器。
  19. 根据权利要求15至18中任一项所述的方法，其特征在于，所述时延需求包括以下中的任一种：首包的时延需求、应用客户端的时延需求或所述应用客户端需要的应用服务器的时延需求。
  20. 根据权利要求15至19中任一项所述的方法，其特征在于，所述预先执行路由影响包括：在应用客户端启动之前执行路由影响或在所述应用客户端与应用服务器有数据交互之前执行路由影响。
  21. 一种通信系统，包括使能服务器、使能客户端和应用客户端，其特征在于，其中所述使能服务器用于执行权利要求1至7中任一项所述的方法，所述使能客户端用于执行权利要求8至14中任一项所述的方法，所述应用客户端用于执行权利要求15至20中任一项所述的方法。
  22. 一种请求应用功能的装置，其特征在于，包括实现权利要求1至7、权利要求8至14或者权利要求15至20中任一项所述的方法的单元。
  23. 一种请求应用功能的装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行：权利要求1至7中任一项所述的方法。
  24. 一种请求应用功能的装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行：权利要求8至 14中任一项所述的方法。
  25. 一种请求应用功能的装置，其特征在于，包括：
    处理器，用于执行存储器中存储的计算机指令，以使得所述装置执行：权利要求15至20中任一项所述的方法。
  26. 一种计算机可读存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被计算机执行时，以使得实现权利要求1至7、权利要求8至14或者权利要求15至20中任一项所述的方法。
  27. 一种计算机程序产品，其特征在于，所述计算机程序产品中包括计算机程序代码，当所述计算机程序代码在计算机上运行时，权利要求1至7、权利要求8至14或者权利要求15至20中任一项所述的方法被执行。
  28. 一种芯片，其特征在于，包括：处理器，用于读取存储器中存储的指令，当所述处理器执行所述指令时，使得所述芯片实现上述权利要求1至7、权利要求8至14或者权利要求15至20中任一项所述的方法。
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