WO2022171051A1 - 一种通信方法和通信装置 - Google Patents

一种通信方法和通信装置 Download PDF

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Publication number
WO2022171051A1
WO2022171051A1 PCT/CN2022/075346 CN2022075346W WO2022171051A1 WO 2022171051 A1 WO2022171051 A1 WO 2022171051A1 CN 2022075346 W CN2022075346 W CN 2022075346W WO 2022171051 A1 WO2022171051 A1 WO 2022171051A1
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Prior art keywords
network element
service
analysis
information
data analysis
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PCT/CN2022/075346
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English (en)
French (fr)
Inventor
辛阳
韦庆
崇卫微
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22752212.5A priority Critical patent/EP4280567A4/en
Publication of WO2022171051A1 publication Critical patent/WO2022171051A1/zh
Priority to US18/232,223 priority patent/US20230388389A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services

Definitions

  • the present application relates to the field of communication, and more particularly, to a communication method and a communication device.
  • Network repository function (NRF) network elements can be used to support network element services or network element discovery functions.
  • network storage function network elements store information about network data analytics function (NWDAF) network elements. .
  • a network function (NF) network element that has NWDAF service requirements will send a network element discovery request to the NRF network element.
  • the request is used to request the information of the target NWDAF network element that meets the preset conditions of the NF network element.
  • the NF network element After receiving the discovery request, the NF network element will provide the NF network element with the NWDAF information judged by the NRF network element that meets the preset conditions of the NF network element.
  • the prior art does not provide a way how the NRF network element determines and provides the NWDAF information.
  • the present application provides a communication method and a communication device, which are used for a network storage function network element to provide information of data analysis network element information to a service requesting network element.
  • an embodiment of the present application provides a communication method, the method includes: a network storage function network element receives a request message from a service request network element, where the request message is used to request information of a target data analysis network element, the request message Including the information of the first analysis identifier and the first service, the target data analysis network element supports the analysis type corresponding to the first analysis identifier and the first service; the network storage function network element according to the first analysis identifier, the first service The information of the target data analysis network element and the association information between the first analysis identifier corresponding to the target data analysis network element and the first service determine the target data analysis network element; the network storage function network element sends the target data analysis network element to the service request network element NE information.
  • the information of the target data analysis network element includes address information of the target data analysis network element, and the address information of the target data analysis network element includes one or more of the following information: data analysis network element , Internet Protocol address, Fully Qualified Domain Name, Uniform Resource Locator.
  • the first service includes at least one of the following services: a model request service, a model subscription service, a data storage request service, and a data collection coordination service.
  • the analysis corresponding to the first analysis identifier includes at least one of the following analysis: slice load analysis, service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis , Terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis.
  • the network element information when each data analysis network element registers its corresponding network element information with the network storage function network element, the network element information will carry the services and analysis supported by the data analysis network element in the network element information.
  • the correspondence includes information about one or more services corresponding to each analysis identifier in the analysis identifiers supported by the data analysis network element, or the services supported by the data analysis network element
  • One or more analysis identifiers corresponding to the information of each service in refers to the association information between the first analysis identifier and the information of the first service that needs to be included in the registered network element information of the target data analysis network element.
  • the network storage function network element can be based on the first analysis identifier and the first service.
  • the association information is used to find the data analysis network element that contains the association information between the first analysis identifier and the first service in the locally stored data analysis network element registration network element information, and determines it to satisfy the service request network element preset
  • the target data analysis network element of the condition is sent to the service requesting network element, and the information of the determined target data analysis network element is sent to the service requesting network element.
  • the target data analysis network element determined by the network storage function network element through the communication method of the present application can meet the actual needs of the service request network element. In other words, the target data analysis network element determined by the network storage function network element through the communication method of the present application.
  • the network element can not only support the first service requested by the service requesting network element, but also simultaneously support the analysis type corresponding to the first analysis identifier requested by the service requesting network element.
  • the above-mentioned analysis identifier is used to indicate the type of analysis
  • the above-mentioned service information is used to indicate the service
  • the above-mentioned service information includes the name of the service.
  • each service supported by the data analysis network element may correspond to one or more functions, and each function has a corresponding service. Therefore, in another possible implementation manner, in the above communication method, the identification and service are analyzed. The corresponding relationship of the information can also be replaced with the corresponding relationship between the analysis identification and the information of the function, and the corresponding relationship between the analysis identification and the service can be further determined through the corresponding relationship between the function and the service. Similarly, in the above communication method, the information of the analysis identification and the service The corresponding relationship can also be replaced by the corresponding relationship between the analysis identifier and other parameters, and there is a corresponding relationship between the other parameters and the service, or there can be a similar replacement relationship for the analysis identifier.
  • the corresponding relationship between the analysis flag and the service is determined indirectly, as long as the replacement method of the corresponding relationship between the analysis flag and the service can be determined substantially within the scope of protection of this application, and the corresponding relationship between the analysis flag and the service is taken as an example. The description should not limit this application.
  • the correspondence type carried when the data analysis network element is registered corresponds to the content in the request information sent by the service requesting network element, for example, the function information and the analysis identifier carried by the data analysis network element when registered
  • the request information sent by the service requesting network element includes the information of the first function that the target data analysis network element needs to support and the first analysis identifier.
  • the correspondence type carried in the registration of the data analysis network element does not necessarily correspond to the content in the request information sent by the service requesting network element.
  • the registration of the data analysis network element carries the function information and The corresponding relationship between the analysis identifiers, and the request information sent by the service requesting network element includes the information of the first service that the target data analysis network element needs to support and the first analysis identifier, then the network storage function network element also needs to obtain the information between the function and the service. corresponding relationship.
  • the data analysis network element can also report to other network elements with similar functions (such as a data collection coordination function (DCCF) or a data repository function (DRF) ), etc.) to register, correspondingly, the service requesting network element can also request the target data analysis network element that meets its preset conditions from other network elements with similar functions (such as data collection and coordination function network and data storage function network element, etc.).
  • DCCF data collection coordination function
  • DRF data repository function
  • the communication method further includes the network storage function network element receiving the first analysis identifier and the first analysis identifier corresponding to the target data analysis network element sent by the target data analysis network element. Association information between the two services.
  • the second service includes a plurality of services
  • the first analysis identifier supports the plurality of services
  • the plurality of services includes the first service
  • the storage manner of the registered network element information of the data analysis network element in the network storage function network element may be to store one or more analysis identifiers and one or more service information corresponding to each analysis identifier and/or a list (or set) of one or more service information and one or more analysis identifications corresponding to each service information.
  • the above-mentioned second service includes one or more of the following services: a model request service, a model subscription service, a data storage request service, and a data collection coordination service.
  • the network storage function network element analyzes the first analysis identifier and the corresponding first analysis identifier of the network element according to the first analysis identifier, the information of the first service, and the target data.
  • the association information between the first services to determine the target data analysis network element includes: determining a candidate data analysis network element according to the first analysis identifier, and the candidate data analysis network element supports the analysis type corresponding to the first analysis identifier;
  • the target data analysis network element is determined from the candidate data analysis network elements according to the information of the first service and the association information between the first analysis identifier corresponding to the target data analysis network element and the first service.
  • the target data analysis network element determined by the communication method of the present application will carry the information supported by the target data analysis network element in the registered network element information when registering with the network storage function network element before.
  • One or more analysis identifiers and information of one or more services (that is, the second service) corresponding to each analysis identifier, and the one or more analysis identifiers include the first condition in the preset conditions of the service request network element.
  • An analysis identifier the information of one or more services corresponding to the first analysis identifier includes the information of the first service, in other words, the registered network element information of the data analysis network element stored in the network storage function network element to analyze
  • the identifier is a search index
  • the information of one or more services corresponding to each analysis identifier is used as a parameter of the analysis identifier
  • the network element to be service requesting carries the first analysis identifier and the information of the first service to the network storage function network element to request data analysis
  • the network storage function network element will preferentially determine the data analysis network element whose registered network element information contains the candidate of the first analysis identifier according to the first analysis identifier, and then further according to the data analysis network element registered in the local data analysis network element.
  • the first service information and the information of the service corresponding to the first analysis identifier in the network element information of the candidate data analysis network element are used to determine whether the analysis corresponding to the first analysis identifier in the candidate data analysis network element supports the relationship between the analysis corresponding to the first analysis identifier and the first service.
  • the data analysis network element with the corresponding relationship is determined as the target data analysis network element satisfying the preset condition of the service request network element, and the information of the determined target data analysis network element is sent to the service request network element.
  • the target data analysis network element determined by the network storage function network element through the communication method of the present application can accurately match the actual requirements of the service request network element. In other words, the target data analysis network element determined by the network storage function network element through the communication method of the present application.
  • the data analysis network element can not only support the analysis type corresponding to the first analysis identifier requested by the service requesting network element, but also support the first service requested by the service requesting network element at the same time.
  • the communication method further includes that the network storage function network element receives the second analysis identifier corresponding to the target data analysis network element and the second analysis identifier corresponding to the target data analysis network element sent by the target data analysis network element. Association information between a service.
  • the second analysis identifier includes multiple analysis identifiers
  • the first service supports the multiple analysis identifiers
  • the multiple analysis identifiers include the first analysis identifier
  • the analysis corresponding to the second analysis identifier includes one or more of the following analysis: slice load analysis, service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication performance analysis, terminal abnormal behavior analysis, user data congestion analysis, and service quality parameter sustainability analysis.
  • the network storage function network element analyzes the first analysis identifier and the corresponding first analysis identifier of the network element according to the first analysis identifier, the information of the first service, and the target data.
  • the association information between the first services to determine the target data analysis network element includes: the network storage function network element determines a candidate data analysis network element according to the information of the first service, and the candidate data analysis network element supports the first service. ; The network storage function network element determines the target data from the candidate data analysis network element according to the association information between the first analysis identification and the first service corresponding to the first analysis identification and the target data analysis network element Analyze network elements.
  • the target data analysis network element determined by the communication method of the present application will carry the information supported by the target data analysis network element in the registered network element information when registering with the network storage function network element before.
  • information of one or more services and one or analysis identifiers corresponding to the information of each service includes the first parameter in the preset conditions of the service requesting network element Information of a service
  • one or more analysis identifiers corresponding to the information of the first service include the first analysis identifier, in other words, the registered network element information of the data analysis network element stored in the network storage function network element is used to serve
  • the information is a search index, and one or more analysis identifiers corresponding to the information of each service are used as parameters of the service information, and the network element to be service requesting carries the first analysis identifier and the information of the first service to the network storage function network element to request
  • the network storage function network element When the information of the data analysis network element is used, the network storage
  • the candidate data analysis network element supports the first service corresponding to the first analysis identifier.
  • Analyze the data analysis network elements that have a corresponding relationship between them determine them as the target data analysis network elements that meet the preset conditions of the service request network element, and send the determined target data analysis network element information to the service request network element .
  • the target data analysis network element determined by the network storage function network element through the communication method of the present application can accurately match the actual requirements of the service request network element. In other words, the target data analysis network element determined by the network storage function network element through the communication method of the present application.
  • the data analysis network element can not only support the first service requested by the service requesting network element, but also simultaneously support the analysis type corresponding to the first analysis identifier requested by the service requesting network element.
  • the request information sent by the service requesting network element further includes network element type information of the service requesting network element.
  • the method further includes requesting network element type information of the network element according to the service. It is determined that the service requesting network element is a data analysis network element.
  • each data analysis network element when each data analysis network element registers with the network storage function network element, it will carry the information of the service supported by the data analysis network element and the network element information in the registered network element information.
  • the correspondence between the element types and the information about the services supported by the data analysis network element and the supported analysis identifiers, the request information sent by the service request network element to the network storage function not only includes the first information that the target data analysis network element needs to support.
  • the information about the analysis identifier and the first service also needs to include the information of the network element type of the service requesting network element.
  • the network storage function network element After the network storage function network element receives the request information, it will first determine the network element type of the service requesting network element.
  • the network element type of the service requesting network element is a data analysis network element
  • the target data analysis network element is further determined according to the above method, that is, according to the first analysis identifier, the information of the first service and the corresponding target data analysis network element
  • the association information between the first analysis identifier and the first service determines the target data analysis network element; otherwise, if the network element type of the service request network element is a non-data analysis network element, the network storage function network element may not be used.
  • the data analysis network element including the first analysis identifier in the analysis identifier and the information of the first service in the service information can be determined as:
  • the target data analysis network element, in this case, the type of the first service is the analysis result open service.
  • the target data analysis network element determined by the network storage function network element through the communication method of the present application can not only support the first service requested by the service requesting network element, but also support the corresponding first analysis identifier requested by the service requesting network element. Analysis type.
  • the communication method of the embodiment of the present application can not only determine the target data analysis network element that meets the actual demand of the service requesting network element, and ensure the service continuity of the service requesting network element, but also can be compatible with the communication method of the 5G standard.
  • the second version is compatible.
  • the request information sent by the service requesting network element further includes information used to indicate an association relationship between the first analysis identifier and the first service information.
  • the service requesting network element will simultaneously request multiple target data analysis network elements from the network storage function network element, or one target data analysis network element requested by the service requesting network element needs to support multiple first analysis identifiers and Multiple first services, at this time, the request information sent by the service requesting network element also needs to include the target data analysis network element requested by the service requesting network element.
  • the target data analysis network element that meets the preset conditions of the service requesting network element determined by the network storage function network element according to the request information of the service requesting network element may include one or more.
  • the network storage function network element sends
  • the information of the target data analysis network element may also include information of one or more data analysis network elements, which is not limited in this application.
  • the service requesting network element can arbitrarily select the information of one data analysis network element.
  • an embodiment of the present application provides a communication method, the method includes: a service request network element sends a request message to a network storage function network element, where the request message is used to request information of a target data analysis network element, the request message Including the information of the first analysis identifier and the first service, the target data analysis network element supports the analysis type corresponding to the first analysis identifier and the first service; the service request network element receives the target from the network storage function network element Data analysis network element information.
  • the information of the target data analysis network element includes address information of the target data analysis network element, and the address information of the target data analysis network element includes one or more of the following information: data analysis network element , Internet Protocol address, Fully Qualified Domain Name, Uniform Resource Locator.
  • the first service includes at least one of the following services: a model request service, a model subscription service, a data storage request service, and a data collection coordination service.
  • the analysis corresponding to the first analysis identifier includes at least one of the following analysis: slice load analysis, service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis , Terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis.
  • the request information sent by the service requesting network element will carry the information corresponding to the preset conditions.
  • the first analysis identifier and the information of the first service so the network storage function network element can analyze the registration network element of the network element according to the first analysis analysis identifier, the information of the first service, and the data stored locally in the network storage function network element
  • the information determines the information of the target data analysis network element that meets the preset conditions of the service request network element, and the registered network element information of the data analysis network element stored locally in the network storage function network element includes the data analysis network element supported by each data analysis network element.
  • the corresponding relationship between the service and the supported analysis identifiers so the service requesting network element can receive the information of the target data analysis network element that satisfies its preset conditions, which solves the problem that the data analysis network element determined by the network storage function network element is inconsistent. It must be able to support the analysis corresponding to the first analysis identifier and the first service problem at the same time, so that the information of the data analysis network element received by the service requesting network element can be accurately matched with the information of the target data analysis network element, and the service request is guaranteed. network element services.
  • the above-mentioned analysis identifier is used to indicate the type of analysis
  • the above-mentioned service information is used to indicate the service
  • the above-mentioned service information includes the name of the service.
  • each service supported by the data analysis network element may correspond to one or more functions, and each function has a corresponding service. Therefore, in another possible implementation manner, the service request network element in the above communication method.
  • the information of the first service in the sent request information can also be replaced with the information of the first function, the first function corresponds to the first service, and the corresponding relationship between the analysis identifier and the service can be further determined through the corresponding relationship between the function and the service,
  • the correspondence between the analysis identifier and the information of the service can also be replaced with the correspondence between the analysis identifier and other parameters, and there is a correspondence between the other parameters and the service, or there can be similar replacements for the analysis identifier.
  • the correspondence type carried when the data analysis network element is registered corresponds to the content in the request information sent by the service requesting network element, for example, the function information and the analysis identifier carried by the data analysis network element when registered
  • the request information sent by the service requesting network element includes the information of the first function that the target data analysis network element needs to support and the first analysis identifier.
  • the correspondence type carried in the registration of the data analysis network element does not necessarily correspond to the content in the request information sent by the service requesting network element.
  • the registration of the data analysis network element carries the function information and The corresponding relationship between the analysis identifiers, and the request information sent by the service requesting network element includes the information of the first service that the target data analysis network element needs to support and the first analysis identifier, then the network storage function network element also needs to obtain the information between the function and the service. corresponding relationship.
  • the service request network element may also request other network elements with similar functions (such as a data collection coordination function (DCCF) or a data repository function (DRF) ), etc.) request the information of the target data analysis network element that satisfies its preset conditions, and the corresponding data analysis network element can also send the information to other network elements with similar functions (such as data collection coordination function network and data storage function network element, etc.) register.
  • DCCF data collection coordination function
  • DRF data repository function
  • the request information sent by the service requesting network element further includes network element type information of the service requesting network element, and the service requesting network element is the network element requesting the target data analysis network element. information.
  • the network storage function network element After receiving the request information, the network storage function network element will first determine the network element type of the service requesting network element.
  • the target data analysis network element will be further determined according to the above method, that is, according to the first analysis identifier, the information of the first service and the first analysis identifier corresponding to the target data analysis network element
  • the association information with the first service determines the target data analysis network element; otherwise, if the network element type of the service request network element is a non-data analysis network element, the network storage function network element does not need to use the first analysis identifier.
  • the corresponding relationship with the first service is used to find the target data analysis network element, and the data analysis network element whose analysis identifier includes the first analysis identifier and the service information includes the information of the first service can be determined as the target data analysis network element, At this time, the type of the first service is the analysis result open service.
  • the target data analysis network element determined by the network storage function network element through the communication method of the present application can not only support the first service requested by the service requesting network element, but also support the corresponding first analysis identifier requested by the service requesting network element. Analysis type.
  • the communication method of the embodiment of the present application can not only determine the target data analysis network element that meets the actual demand of the service requesting network element, and ensure the service continuity of the service requesting network element, but also can be compatible with the communication method of the 5G standard.
  • the second version is compatible.
  • the request information sent by the service requesting network element further includes information used to indicate an association relationship between the first analysis identifier and the first service information.
  • the service requesting network element will simultaneously request multiple target data analysis network elements from the network storage function network element, or one target data analysis network element requested by the service requesting network element needs to support multiple first analysis identifiers and Multiple first services, at this time, the request information sent by the service requesting network element also needs to include the target data analysis network element requested by the service requesting network element.
  • the service requesting network element can arbitrarily select the information of one data analysis network element.
  • an embodiment of the present application provides a communication method, the method comprising: a target data analysis network element sending a message between a first analysis identifier corresponding to the target data analysis network element and a first service to a network storage function network element associated information.
  • the above-mentioned association information between the first analysis identifier and the first service is embodied as a correspondence between the first analysis identifier and the information of the first service, and the first analysis identifier is used to indicate the first analysis identifier.
  • An analysis type of analysis the information of the first service is used to indicate the first service, and the information of the first service includes the service name of the first service.
  • the first service includes at least one of the following services: a model request service, a model subscription service, a data storage request service, and a data collection coordination service.
  • the analysis corresponding to the first analysis identifier includes at least one of the following analysis: slice load analysis, service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis , Terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis.
  • the target data analysis network element sends association information between the first analysis identifier corresponding to the target data analysis network element and the first service to the network storage function network element
  • the method includes: the target data analysis network element sends association information between the first analysis identifier corresponding to the target data analysis network element and a second service to the network storage function network element, where the second service includes multiple services, and the The first analysis identifies support for the plurality of services, the plurality of services including the first service.
  • the above-mentioned second service includes one or more of the following services: a model request service, a model subscription service, a data storage request service, and a data collection coordination service.
  • the target data analysis network element sends association information between the first analysis identifier corresponding to the target data analysis network element and the first service to the network storage function network element Including: association information between the second analysis identifier corresponding to the target data analysis network element and the first service sent by the target data analysis network element to the network storage function network element, where the second analysis identifier includes multiple analysis identifiers , the first service supports the multiple analysis identifiers, and the multiple analysis identifiers include the first analysis identifier.
  • the analysis corresponding to the second analysis identifier includes one or more of the following analysis: slice load analysis, service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication performance analysis, terminal abnormal behavior analysis, user data congestion analysis, and service quality parameter sustainability analysis.
  • the network element information when each data analysis network element registers its corresponding network element information with the network storage function network element, the network element information will carry the services and analysis supported by the data analysis network element in the network element information.
  • the correspondence includes information about one or more services corresponding to each analysis identifier in the analysis identifiers supported by the data analysis network element, or the services supported by the data analysis network element.
  • One or more analysis identifiers corresponding to the information of each service in Analyze the correspondence between the service supported by the network element and the analysis type corresponding to the analysis identifier
  • the analysis identifier supported by the target data analysis network element includes a first analysis identifier
  • one or more services That is, the second service
  • the services supported by the target data analysis network element include the first service
  • the information of the first service corresponds to one or more analysis identifiers (that is, the second analysis identifiers) includes the first analysis identifier.
  • the network storage function network element can search the locally stored data analysis network element registration network element information containing the association between the first analysis identifier and the first service according to the association information between the first analysis identifier and the first service.
  • the data analysis network element of the information finds the target analysis network element from at least one data analysis network element.
  • the network storage function network element can accurately find out the target data network element that can simultaneously satisfy the first analysis corresponding to the first analysis identifier and the first service through the communication method of the present application, which solves the problem of data analysis determined by the network storage function network element.
  • the network element does not match the data analysis network element.
  • the data analysis network element can also report to other network elements with similar functions (such as a data collection coordination function (DCCF) or a data repository function (DRF) ), etc.) to register, correspondingly, the service requesting network element can also request the target data analysis network element that meets its preset conditions from other network elements with similar functions (such as data collection and coordination function network and data storage function network element, etc.).
  • DCCF data collection coordination function
  • DRF data repository function
  • the format of the registration network element information sent by the data analysis network element may be a list (or set) of one or more analysis identifiers and one or more service information corresponding to each analysis identifier. , and/or, send a list (or set) of one or more service information and one or more analysis identifiers corresponding to each service information.
  • a communication apparatus in a fourth aspect, can be used to perform the operations of the communication device in the first aspect and any possible implementation manner of the first aspect.
  • the communication apparatus includes means for performing the steps or functions described in the first aspect.
  • the corresponding means may be the first communication device of the first aspect.
  • the steps or functions can be implemented by software, or by hardware, or by a combination of hardware and software.
  • a communication apparatus in a fifth aspect, can be used to perform the operations of the communication device in the second aspect and any possible implementation manner of the second aspect.
  • the apparatus may include means for performing the steps or functions described in the second aspect above.
  • the steps or functions can be implemented by software, or by hardware, or by a combination of hardware and software.
  • a communication apparatus in a sixth aspect, can be used to perform the operation of the communication device in the third aspect and any possible implementation manner of the third aspect.
  • the communication apparatus includes means for performing the steps or functions described in the third aspect.
  • the corresponding means may be the first communication device of the third aspect.
  • the steps or functions can be implemented by software, or by hardware, or by a combination of hardware and software.
  • a computer-readable medium stores a computer program (which may also be referred to as code, or an instruction), when it runs on a computer, causing the computer to execute the above-mentioned first to third aspects A method in any of the possible implementations of an aspect.
  • a chip system including a memory and a processor, the memory is used for storing a computer program, and the processor is used for calling and running the computer program from the memory, so that the communication device installed with the chip system executes the above-mentioned The method in any one possible implementation manner of the first aspect to the third aspect.
  • a chip in a ninth aspect, includes a processor and a communication interface, the communication interface is used to communicate with an external device or an internal device, and the processor is used to implement any one of the above-mentioned first to third aspects. method in the implementation.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute the instructions stored in the memory or derived from other instructions. When the instruction is executed, the processor is configured to implement the method in any possible implementation manner of the first aspect to the third aspect.
  • the chip may be integrated on an access network device.
  • a computer program product comprising: a computer program (also referred to as code, or instructions), when the computer program is executed, causes the computer to execute the above-mentioned first to third aspects method in any of the possible implementations.
  • a communication device comprising: a processor and a memory, the memory is used for storing a computer program, the processor is used for calling and running the computer program from the memory, so that the communication device executes the first to the first
  • the communication method in any one possible implementation manner of the three aspects.
  • the processor is one or more and the memory is one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • a communication device in one possible design, includes a communication interface, a processor and a memory.
  • the processor is used to control the communication interface to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the communication device executes any one of the possible implementations of the first to third aspects.
  • a twelfth aspect provides a communication system, the communication system comprising: a network storage function network element for executing the method in any possible implementation manner of the first aspect; and a service request network element for executing the first The method in any possible implementation manner of the two aspects.
  • a communication system includes at least two network elements among a service request network element, a network storage function network element, and a data analysis network element.
  • FIG. 1 is a schematic diagram of an application scenario to which the method according to the embodiment of the present application is applicable.
  • FIG. 2 is a schematic flowchart of a data analysis network element registering with a network storage function network element.
  • FIG. 3 is a schematic flowchart of a first network element requesting data analysis network element information from a network storage function network element.
  • FIG. 4 is a schematic flowchart of an embodiment of a communication method in the present application.
  • FIG. 5 is a schematic diagram of another embodiment of the communication method in the present application.
  • FIG. 6 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another communication apparatus provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (Time Division Duplex) , TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, fifth generation (5th Generation, 5G) system, the fifth point in the future The fifth generation (5.5th generation, 5.5G), the sixth generation (6th generation, 6G) or the new wireless (New Radio, NR) and so on.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Division Duplex Time Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system includes but is not limited to the following network elements:
  • the terminal equipment in the embodiments of the present application may also be referred to as: user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), 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 equipment, etc.
  • user equipment user equipment
  • MS mobile station
  • MT mobile terminal
  • 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 equipment, etc.
  • the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some examples of terminals are: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving or autopilot, wireless terminals in remote medical surgery, smart grid ( Wireless terminal in smart grid), wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol Session initiation protocol (SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices, or other devices connected to wireless modems Processing equipment, vehicle-mounted equipment, wearable equipment, terminal equipment in the future 5G network or terminal equipment in the future evolved public land mobile network (public land mobile network, PLMN), etc.,
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in an internet of things (internet of things, IoT) system.
  • IoT internet of things
  • the terminal device may also communicate with terminal devices of other communication systems, for example, inter-device communication.
  • the terminal device may also transmit (eg, send and/or receive) time synchronization messages with terminal devices of other communication systems.
  • Radio access network (RAN)
  • a wireless access network is an access network that realizes the function of an access network based on a wireless communication technology.
  • the wireless access network can manage wireless resources, provide wireless access or air interface access services for the terminal, and then complete the forwarding of control signals and user data between the terminal and the core network.
  • the radio access network may be an evolved NodeB (evolved NodeB, eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario , or the access device can be a relay station, an access point, a vehicle-mounted device, a wearable device, an access device in a 5G network or an access device in a future evolved PLMN network, etc., and can be an access point in a WLAN ( access point, AP), which may be a gNB in the NR system, which is not limited in this embodiment of the present application.
  • a WLAN access point, AP
  • NWDAF network data analytics function
  • the network element NWDAF has at least one of the following functions: data collection function, model training function, model feedback function, analysis result inference function, analysis result feedback function, data storage function, and data collection coordination function.
  • the data collection function refers to the collection of data from network elements, third-party service servers, terminal equipment or network management systems
  • the model training function refers to the analysis and training based on the relevant input data to obtain a model
  • the model feedback function refers to the
  • the trained machine learning model is sent to the network element that supports the inference function
  • the analysis result inference function performs inference based on the trained machine learning model and inference data to determine the data analysis result
  • the analysis result feedback function can be sent to the network element and the third-party service server.
  • the data storage function refers to the NWDAF network element Training data or inference data can be stored locally;
  • the data collection coordination function means that the NWDAF network element can assist other NWDAF network elements to obtain data on the NF.
  • NWDAF network elements such as NWDAF X
  • NWDAF X can first request the NWDAF network element for NF data.
  • the NWDAF If the data on the NF already exists on the NWDAF network element, it will be sent directly to the NWDAF X network element, otherwise, the NWDAF first requests the data on the NF from the NF, and then sends the obtained data on the NF Sent to NWDAF X network element.
  • NWDAF uses reliable analysis and prediction models to evaluate and analyze different types of users by collecting information such as user connection management, mobility management, session management, and accessed services. , build user portraits, determine the user's movement trajectory and service usage habits, and predict user behavior.
  • 5G networks optimize user mobility management parameters and wireless resource management parameters based on analysis and prediction data; service (path) optimization, that is, NWDAF collects information such as network performance, service load in a specific area, and user service experience, and uses reliable network performance analysis and prediction models to evaluate and analyze different types of services, build service profiles, and determine the quality of experience (QoE) of services.
  • path that is, NWDAF collects information such as network performance, service load in a specific area, and user service experience, and uses reliable network performance analysis and prediction models to evaluate and analyze different types of services, build service profiles, and determine the quality of experience (QoE) of services.
  • QoE quality of experience
  • the Internet of Vehicles is an important technology of the 5G network.
  • the prediction of the network performance (such as QoS information, business load) of the base stations that the vehicle will pass through plays an important role in improving the service quality of the Internet of Vehicles.
  • the Internet of Vehicles server can determine whether to continue to maintain the driverless mode based on the predicted information of the network performance. NWDAF collects information such as network performance and service load in a specific area, and uses reliable network performance analysis and prediction models to achieve statistics and predictions on network performance and assist AF in optimizing parameters.
  • the NWDAF may be an independent network element, or may be co-located with other network elements.
  • the NWDAF network element may be co-located with the AMF or co-located with the session management function (session management function, SMF) network element.
  • session management function session management function, SMF
  • Network storage function network element (network repository function, NRF)
  • the network storage function network element can be used to support network element services or network element discovery functions, receive NF discovery requests from network function (network function, NF) instances, and provide information about the discovered NF instances to the NF instances. and NF configuration files to support maintaining available NF instances and the services they support. In this embodiment of the present application, it can be used to support a network element service or a network element discovery function.
  • network function network function
  • Session management function network element (session management function, SMF)
  • the session management function network element is mainly used for session management, Internet Protocol (IP) address allocation and management of terminal equipment, selection of manageable user plane function (UPF) network elements, policy control and charging functions
  • IP Internet Protocol
  • UPF manageable user plane function
  • policy control and charging functions The endpoint of the interface and the downlink data notification, etc.
  • it can be used to implement the function of the session management network element.
  • Access and mobility management function network element access and mobility management function, AMF
  • the access and mobility management function network elements are mainly used for mobility management and access management, etc., and can be used to implement other functions other than session management in the mobility management entity (mobility management entity, MME) function, for example, legal Monitoring, or access authorization (or authentication) and other functions.
  • MME mobility management entity
  • the functions of the access and mobility management network elements can be implemented.
  • PCF Policy control function
  • the policy control network element is used to guide the unified policy framework of network behavior, and provides policy rule information and the like for the control plane functional network elements (such as AMF, SMF network elements, etc.).
  • the application function network element is used to provide services, or to perform data routing affected by the application, to access the network open function network element, or to exchange service data with the NWDAF network element for policy control, etc.
  • User plane functional network elements can be used for packet routing and forwarding, or QoS parameter processing of user plane data.
  • User data can be accessed to a data network (DN) through this network element.
  • DN data network
  • it can be used to implement the function of the user plane network element.
  • Network capability exposure function Network element (network exposure function, NEF): used to open services and network capability information (such as terminal location, session reachability) provided by the 3GPP network function to the outside.
  • the N2 interface is the interface between the RAN and the AMF network element, which is used for sending radio parameters, non-access stratum (NAS) signaling, etc.
  • the N3 interface is the interface between the RAN and the UPF network element.
  • the N4 interface is the interface between the SMF network element and the UPF network element, which is used to transmit service policies, tunnel identification information of N3 connection, data buffer indication information, and downlink data notification. messages, etc.
  • the N6 interface is the interface between the DN network element and the UPF network element, and is used to transmit data on the user plane.
  • the NWDAF network element can exchange information with any other network element through the service-oriented interface, such as collecting terminal data generated on the network element from other network elements (such as AMF, SMF, etc.) through the service-oriented interface.
  • Data provide data analysis results (Analytics), models (Machine Learning Model, also known as machine learning models), data (data) to other network elements (such as AMF, PCF, etc.) through the Nnwdaf interface.
  • the above-mentioned network architecture applied to the embodiments of the present application is only a network architecture described from the perspective of a traditional point-to-point architecture and a service-oriented architecture, and the network architecture applicable to the embodiments of the present application is not limited thereto. Any network architecture capable of implementing the functions of the foregoing network elements is applicable to the embodiments of the present application.
  • the name of the interface between each network element in FIG. 1 is just an example, and the name of the interface in the specific implementation may be other names, which are not specifically limited in this application.
  • the names of the information (or signaling) transmitted between the above network elements are only an example, and do not constitute any limitation on the function of the information itself.
  • network elements may also be referred to as entities, devices, devices, or modules, etc., which are not particularly limited in this application.
  • the description of network elements is omitted in some descriptions.
  • NWDAF the NWDAF network element
  • NWDAF should be understood as the NWDAF network element. The following , and the description of the same or similar situations is omitted.
  • the above-mentioned functional network elements may be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (eg, a cloud platform).
  • each component network element is only exemplary, and not all functions of each component network element are required when applied to the embodiments of the present application.
  • the NRF in Figure 1 is the network storage function network element, and its function is similar to the domain name server (DNS) in the traditional network.
  • DNS domain name server
  • Each network element can register its own network element information (NF Profile) in the NRF.
  • NF Profile network element information
  • NRF can assist other network elements to obtain information about relevant network elements that meet their requirements.
  • Step 1 The NWDAF carries the NWDAF network element information (NWDAF profile) to trigger the network element registration request (Nnrf_NFManagement_NFRegister_request) service operation in the network element management of the Nnrf interface, and initiates a registration request for the NWDAF network element to the NRF for registering the NWDAF network element information;
  • Table 1 shows the information content included in the NWDAF network element information (NWDAF profile), as follows:
  • NnwdafInfo is shown in Table 2, as follows:
  • the contents of Table 3 may be referred to.
  • the information of the Nnwdaf_AnalyticsSubscription service supported by NWDAF includes the service instance identifier of the Nnwdaf_AnalyticsSubscription service or the service name of the Nnwdaf_AnalyticsSubscription service (that is, Nnwdaf_AnalyticsSubscription).
  • Other services of NWDAF can be described here, no longer Repeat.
  • the service name (ServiceName) includes the analysis result subscription service (Nnwdaf_AnalyticsSubscription) of the NWDAF network element and/or the analysis result information service (Nnwdaf_AnalyticsInfo) of the NWDAF network element.
  • the EventId in Table 2 corresponds to the Analytics ID, and Table 4 exemplarily shows the relevant content of the Analytics ID:
  • NWDAF provides data analysis of the service experience type, correspondingly, NWDAF can provide NWDAF services corresponding to the service experience type (such as analysis result subscription service, see Table 5 for details) or (see Table 5 for details) NWDAF functions (eg Analysis results inference function, see Table 6 for details).
  • Step 2 After receiving the registration request, the NRF stores the NWDAF network element information (NWDAF profile) registered by the NWDAF;
  • Step 3 The NRF triggers the service operation of the network element registration response (Nnrf_NFManagement_NFR register_response) in the network element management of the Nnrf interface to send a reply message to the NWDAF to notify the NWDAF that the registration is successful.
  • Step 1 The first network element (ie, the service requesting network element) triggers the Nnrf interface network element discovery request (Nnrf_NFDiscovery_Request) service operation, and sends request information to the NRF, and the request information is used to request the NWDAF that meets the preset conditions of the first network element.
  • address information the request information includes preset condition information of the first network element, and the preset condition information includes an analysis identifier (Analytics ID) and a service name (Service Name);
  • the analysis identifier Analytics ID includes the content shown in Table 4, and the service name Service Name includes the analysis result subscription service (Nnwdaf_AnalyticsSubscription) of the NWDAF network element or the NWDAF network element's subscription service (Nnwdaf_AnalyticsSubscription) Analytics Results Information Service (Nnwdaf_AnalyticsInfo).
  • the service name Service Name includes the analysis result subscription service (Nnwdaf_AnalyticsSubscription) of the NWDAF network element or the NWDAF network element's subscription service (Nnwdaf_AnalyticsSubscription) Analytics Results Information Service (Nnwdaf_AnalyticsInfo).
  • Step 2 The NRF receives the request information and determines the address information of the target NWDAF that meets the equipment conditions of the first network element, such as the identification of the data analysis network element (NWDAF ID), the Internet Protocol address (IP address), the fully qualified domain name (fully qualified domain name). qualified domain name, FQDN), uniform resource locator (uniform resource locator, URL) and other information.
  • NWDAF ID the identification of the data analysis network element
  • IP address Internet Protocol address
  • FQDN fully qualified domain name
  • uniform resource locator uniform resource locator
  • Step 3 The NRF triggers the Nnrf interface network element discovery request response (Nnrf_NFDiscovery_Request Response) service operation, and sends reply information to the first network element, where the reply information includes address information of the NWDAF that meets the preset conditions of the first network element.
  • Nnrf_NFDiscovery_Request Response Nnrf interface network element discovery request response
  • the above-mentioned first network element is a network element that needs the address information of the NWDAF, such as a PCF network element that uses the analysis result to open the service.
  • NRF assists the first network element to discover the NWDAF that meets its requirements
  • the NRF will determine the first network element according to the analysis ID (Analytics ID) and service name (Service Name) in the request information sent by the first network element. NWDAF of network element preset conditions.
  • the service name (Service Name) provided by NWDAF for an analysis ID only includes the analysis result open service, and also It is the analysis result subscription service of NWDAF network element (Nnwdaf_Analytics Subscription) or the analysis result information service (Nnwdaf_AnalyticsInfo) of NWDAF network element.
  • the analysis result open service corresponds to multiple functions such as data collection, model training, analysis result inference, etc. , data collection, model training, analysis result reasoning and other functions jointly provide the output of the analysis result open service.
  • NWDAF network elements are decomposed into data collection functions, model training functions, inference functions, data storage functions, and data collection coordination functions.
  • each type of service in the above-mentioned services may correspond to one or more functions, and Table 6 shows a possible correspondence between services and functions, as follows:
  • NWDAFs registered in NRF can support different services or functions for the same Analytics ID. Specifically, different NWDAFs can support some or all of the above five services for the same Analytics ID.
  • one or more of the above data collection functions, model training functions, inference functions, data storage functions, data collection coordination functions, analysis results opening functions, model opening functions, training data or inference data opening functions, etc. can also be supported. .
  • the NWDAF registered in the NRF only supports the analysis result open (Nnwdaf_AnalyticsSubscription or Nnwdaf_AnalyticsInfo) service for a specific analysis ID Analytics ID.
  • analysis ID is the Analytics ID
  • service name Service Name
  • the registration information determined by NRF according to the analysis ID Analytics ID in the request information includes the analysis ID Analytics ID
  • the NWDAF can only provide the analysis result open service, which is consistent with the service actually required in the request information of the first network element, that is, the NWDAF determined by the NRF according to the request information completely matches the NWDAF actually required by the first network element.
  • analysis ID and the service name in the NWDAF network element information registered in the NRF are at the same level. It can be understood that the analysis ID and the service name have the same priority, and there is no binding relationship or mapping relationship between the two. The ID and the service name exist independently of each other.
  • the services supported by different NWDAFs in the NRF registration information may be different.
  • different NWDAFs can support the analysis results opening services and model opening for the same analysis ID.
  • One or more of services, data storage services, data collection services and data collection coordination services; in addition, the registration information of the same NWDAF may also include one or more Analytics IDs, which are different in the NWDAF
  • the services supported by NWDAF corresponding to the Analytics ID may also be different.
  • the NRF still only determines the NWDAF that satisfies the preset conditions of the first network element according to the analysis identifier and the required service name carried in the request information sent by the first network element, that is, as long as the registration information includes this Both the analysis ID and the NWDAF of the service name required in the request information meet the preset conditions of the first network element.
  • the NWDAF registration information includes multiple analysis IDs, and the services corresponding to different analysis IDs are also different, when the first When the analysis identifier required by a network element does not correspond to the service name in the NWDAF, the NWDAF cannot simultaneously satisfy the analysis identifier required by the first network element and the service required by the first network element, that is, the NWDAF determined by the NRF and the first network element The NWDAF of the actual demand of the network element does not match. After the first network element receives the address information of the NWDAF determined by the NRF, it cannot be used, which not only causes a waste of resources, but also cannot guarantee the services of the first network element.
  • NWDAF#1 only supports model open service for Analytics ID#M, but does not support analysis result open service and data storage service, and does not support model open service for Analytics ID#N, but supports analysis result open service Services and Data Storage Services.
  • the request information sent by the first network element to the NRF may include the Analytics ID#M and the service name of the analysis result open service
  • the NWDAF determined by the NRF according to the request information is NWDAF#1. Obviously, NWDAF#1 cannot meet the actual requirement of the first network element.
  • the registration information of NWDAF#1 in the NRF includes: the service names supported by NWDAF#1, namely, analysis result open service, model open service, and data storage service; the analysis ID supported by NWDAF#1, namely Analytics ID# M. Analytics ID#N.
  • NWDAF#1 the registration information of NWDAF#1 in the NRF includes: the service names supported by NWDAF#1, namely, analysis result open service, model open service, and data storage service; the analysis ID supported by NWDAF#1, namely Analytics ID# M. Analytics ID#N.
  • NWDAF whose registration information includes the analysis identifier and service name required in the first network element request information will be judged by the NRF as an NWDAF that meets the preset requirements of the first network element, the NRF will feed back the address of NWDAF #1 to the first network element. network element, but NWDAF#1 does not actually meet the preset conditions of the first network element.
  • the present application proposes a communication method, so that the NWDAF determined by the NRF according to the request information of the first network element can be completely matched with the NWDAF actually required by the first network element, which not only avoids the waste of resources, but also ensures the first A network element service.
  • the NWDAF sends request information #a to the NRF, where the request information #a is used to request registration with the NRF, and the request information #a includes the correspondence between the analysis identifier and the service.
  • the above-mentioned request information #a includes a correspondence between an analysis identifier and service information, where the analysis identifier is used to indicate the analysis type (such as slice load analysis, service experience analysis, etc.) supported by the NWDAF , network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis, terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis, etc.), the information of this service is used to indicate the NWDAF Supported services (such as model request service, model subscription service, data storage request service, data collection coordination service, etc.), specifically, the information of the service includes the name of the service.
  • the analysis identifier is used to indicate the analysis type (such as slice load analysis, service experience analysis, etc.) supported by the NWDAF , network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis, terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis, etc.)
  • the information of this service is used to indicate the NWDAF Supported services (such as model request service, model subscription service, data
  • the request information #a also includes other network element information of the NWDAF, such as one or more of the following information corresponding to the NWDAF: network element type, address information, service The area, etc., is similar to that in the prior art, and will not be repeated here.
  • the NRF receives the request information #a, and stores the information of the network element registered by the NWDAF, where the information of the network element includes the corresponding relationship between the analysis identifier and the service.
  • the NRF sends a reply message #a to the NWDAF to notify the NWDAF that the registration is successful.
  • the first network element determines a preset condition for NWDAF (which can be understood as a requirement of the first network element for data analysis of the NWDAF to be requested), and the preset condition includes information on services that need to be supported by NWDAF, and information related to the NWDAF support.
  • the analysis identifier corresponding to the information of the service.
  • the first network element sends request information #b to the NRF, where the request information #b is used to request the information of the NWDAF network elements that meet the preset conditions of the first network element, and the request information #b includes the pre-set information of the first network element. Set conditions.
  • the NRF receives the request information #b, and determines an NWDAF that meets the preset requirements of the first network element according to the request information #b.
  • the NRF sends a reply message #b to the first network element, where the reply message #b includes the information of the NWDAF that meets the preset requirements of the first network element.
  • the above-mentioned information of the NWDAF that meets the preset requirements of the first network element includes address information of the NWDAF, such as one or more of an IP address, an identifier of the NWDAF, an FQDN, a URL, etc., hereinafter
  • address information of the NWDAF will be described as an example.
  • the above-mentioned correspondence between the analysis identifier and the service may be embodied as a correspondence between the analysis identifier and the information of the service, where the analysis identifier may be used to indicate the type of analysis (such as slice load analysis, Service experience analysis, network element load analysis, network performance analysis, terminal mobility analysis, terminal communication analysis, terminal abnormal behavior analysis, user data congestion analysis, service quality parameter sustainability analysis, etc.), the service information includes the service
  • the name of the service will be described below by taking the information of the service as the name of the service as an example.
  • each service supported by NWDAF may correspond to one or more functions, and each function has a corresponding service. Therefore, in another possible implementation manner, the correspondence between the identifier and the service is analyzed in the communication method 100 above.
  • the relationship can also be replaced by the corresponding relationship between the analysis identification and the function, and the corresponding relationship between the analysis identification and the service can be further determined through the corresponding relationship between the function and the service.
  • the corresponding relationship between the analysis identification and the service in the above-mentioned communication method 100 can also be replaced by The corresponding relationship between the analysis identifier and other parameters, there is a corresponding relationship between the other parameters and the service, or there may be a similar replacement relationship for the analysis identifier.
  • the corresponding relationship between the identification and the service as long as the alternative method of analyzing the corresponding relationship between the identification and the service can be determined in essence, it is within the scope of protection of this application. .
  • the NRF determines that there are one or more NWDAFs that meet the preset conditions of the first network element.
  • the reply message #b sent by the NRF includes information that meets the preset conditions of the first network element.
  • the address information of the NWDAF may also include one or more, which is not limited in this application.
  • the reply information #b sent by the NRF includes address information of multiple NWDAFs that meet the preset conditions of the first network element, the first network element can arbitrarily select one of them as the target NWDAF.
  • the NWDAFs registered in the NRF include NWDAF#1, NWDAF#2 and NWDAF#3 as an example, in the registration information of NWDAF#1, NWDAF#1 can provide analysis result open services and data storage for analysis ID #A Service, NWDAF#1 can provide model open service and data storage service for analysis ID #B, NWDAF#1 can provide analysis result open service for analysis ID #C; in the registration information of NWDAF#2, NWDAF#2 is for analysis ID #A can provide model open service and data storage service; in the registration information of NWDAF#3, NWDAF#3 can provide analysis result open service, model open service and data storage service for the analysis ID #A.
  • the corresponding relationship between the analysis identifier and the service in the network element information registered by the NWDAF with the NRF is placed hierarchically, that is, the analysis identifier and the service are placed at the same or different levels, as an example and not a limitation.
  • This layer can be divided into the first layer, the second layer, etc.
  • step S106 when the NRF determines the NWDAF that meets the preset requirements of the first network element according to the above request information #b, it will preferentially search for the network element information of the first layer.
  • the NRF can determine the NWDAF that meets the preset conditions according to the network element information of the first layer, it will stop searching and feed back the address information of the NWDAF that meets the preset conditions to the first network element; otherwise, the NRF will continue to search for the next layer ( Layer 2) network element information until the NWDAF that satisfies the preset conditions is determined.
  • Layer 2 Layer 2
  • step S106 when the NRF determines the NWDAF that meets the preset requirements of the first network element according to the above-mentioned request information #b, it will first search for network element information with a higher priority. , when the NRF can determine the NWDAF that meets the preset conditions according to the network element information of the priority, it will stop searching and feed back the address information of the NWDAF that meets the preset conditions to the first network element; otherwise, the NRF will continue to search for the next priority. level of network element information until an NWDAF that satisfies the preset conditions is determined.
  • the communication method 100 can not only be applied to the Rel-17 stage and new stages that may appear later, but also be compatible with the Rel-16 stage.
  • the network element type of the first network element can be NWDAF network element or non-NWDAF network element; for non-analysis results open (Nnwdaf_Analytics) service , that is, for the model opening service, the model opening service, the data collection coordination service or the data collection service, the network element type of the first network element only includes the NWDAF network element.
  • the non-analysis result open service is placed in the NWDAF registered network element information The first layer, and then place the analysis identifier as the parameter corresponding to the service in the second layer of the network element information registered by NWDAF; or, place the analysis identifier in the first layer of the network element information registered by NWDAF, and then open the non-analysis results.
  • the service is placed in the second layer of the network element information registered by the NWDAF as the parameter corresponding to the analysis identifier.
  • open the service for the analysis result refer to the placement method of the analysis ID and service in the Rel-16 stage, and place the analysis result open service and the analysis ID corresponding to the service in the network element registered by NWDAF The first layer of information.
  • Table 7 shows an example of the NWDAF registered network element information in the possible implementation #A1.
  • a communication method 200 is proposed, and the communication method 200 includes:
  • the NWDAF sends request information #a to the NRF, where the request information #a is used to request registration with the NRF, and the request information #a not only includes the corresponding relationship between the analysis identifier and the service, but also includes the network element of the first network element type information.
  • the NWDAF triggers the service operation of the NE registration request (Nnrf_NFManagement_NFRegister_request) in the network element management of the Nnrf interface, and sends the request information #a to the NRF.
  • the request information #a is used to request registration with the NRF.
  • the request information #a includes the correspondence between the analysis identifier and the service, and the correspondence between the type of the first network element and the service.
  • the request information #a also includes other network element information of the NWDAF, such as one or more of the following information corresponding to the NWDAF: network element type, address information, service The area, etc., is similar to that in the prior art, and will not be repeated here.
  • Table 8 shows a possible correspondence between the type of the first network element and the service:
  • the NRF receives the request information #a, and stores the information of the network element registered by the NWDAF, the information includes the corresponding relationship between the analysis identifier and the service (such as Table 7), and the corresponding relationship between the type of the first network element and the service (such as Table 8).
  • the NRF sends the reply message #a to the NWDAF to notify the NWDAF that the registration is successful.
  • the NRF triggers the NE registration response (Nnrf_NFManagement_NFRegister_response) service operation in the NE management of the Nnrf interface, and sends the reply message #a to the NWDAF to notify the NWDAF that the registration is successful.
  • NE registration response Nnrf_NFManagement_NFRegister_response
  • the first network element determines a preset condition for NWDAF, where the preset condition includes a service name that needs to be supported by NWDAF, and an analysis identifier corresponding to the service name.
  • the PCF when the first network element is a PCF, if the PCF needs to obtain the service experience data analysis result from the NWDAF to adjust the QoS parameters of the service, the PCF first determines that the NWDAF that meets the preset conditions needs to support the analysis result Open service, that is, the service name supported by NWDAF that meets the preset conditions needs to include the service name of the analysis result open service, and then determines that in the NWDAF that meets the preset conditions, the analysis ID corresponding to the analysis result open service Analytics ID is business Experience Service Experience.
  • the first network element sends request information #b to the NRF, where the request information #b is used to request address information of the NWDAF network element that meets the preset condition of the first network element.
  • the request information #b includes the network element type of the first network element. If the type of the first network element is an NWDAF network element, the request information #b further includes a service name required by the first network element to be supported by NWDAF and an analysis identifier corresponding to the service name.
  • the NRF triggers the Nnrf interface of the NWDAF network element discovery request (Nnrf_NFManagement_NFRegister_response) service operation, and sends the request information #b to the NRF, where the request information #b is used to request the network element that meets the preset conditions of the first network element.
  • the request information #b includes the network element type of the first network element. If the type of the first network element is an NWDAF network element, the request information #b further includes a service name required by the first network element to be supported by NWDAF and an analysis identifier corresponding to the service name.
  • the NRF receives the request information #b, and determines an NWDAF that meets the preset requirements of the first network element according to the request information #b.
  • the NRF receives the request information #b, and determines the type of the first network element in the request information #b. If the type of the first network element is a non-NWDAF or NWDAF network element, the NRF registers with the NWDAF Find and determine whether there is an analysis identifier that satisfies the preset conditions in the first-layer network element information of the If there is a service name (or analysis identifier) that satisfies the preset condition, further search for the layer 2 network element information registered by NWDAF to determine whether there is an analysis identifier (or service name) that meets the preset requirement.
  • the NRF sends reply information #b to the first network element, where the reply information #b includes address information of the NWDAF that meets the preset requirements of the first network element.
  • the NRF triggers the Nnrf interface network element discovery request response (Nnrf_NFDiscovery_Request Response) service operation, and sends reply information #b to the first network element. Set the required NWDAF address information.
  • the NRF determines that there are one or more NWDAFs that meet the preset conditions of the first network element.
  • the reply information #b sent by the NRF includes the NWDAFs that meet the preset conditions of the first network element.
  • the address information of the NWDAF may also include one or more addresses, which are not limited in this application.
  • the reply information #b sent by the NRF includes address information of multiple NWDAFs that meet the preset conditions of the first network element, the first network element can arbitrarily select one of them as the target NWDAF.
  • the request information #a and the request information #b may also include the service name required by the first network element to be supported by the NWDAF and the analysis identifier corresponding to the service name, but not the first network element.
  • a type of network element After receiving the request information #b, the NRF no longer judges the type of the first network element, but determines whether the first network element meets the requirements of the first network element according to the corresponding analysis identifier and service name in the request information #b. Preset required NWDAF.
  • the request information #b in the communication method 200 also includes analysis.
  • the corresponding relationship between the identifier and the service name is not limited in this application.
  • the NRF can assist the first network element to find an NWDAF that meets the preset conditions of the first network element, that is, the NWDAF determined by the NRF through the preset conditions of the first network element and the NWDAF actually required by the first network element NWDAF can be completely matched, that is, the service of the first network element is guaranteed, and the waste of resources is avoided.
  • the second possible implementation manner corresponding to the possible implementation manner #A is further described by taking the analysis of the identification and the hierarchical placement of the service placement as an example.
  • the communication method 100 can be applied to the Rel-17 stage and new stages that may appear later, but is not compatible with the Rel-16 stage.
  • the analysis identifier is placed on the first layer of the network element information registered by the NWDAF, and then the service is placed as a parameter corresponding to the analysis identifier on the second layer of the network element information registered by the NWDAF.
  • Table 9 shows an example of NWDAF registration network element information in possible implementation #A2.
  • the above communication method 100 specifically includes:
  • the NWDAF sends request information #a to the NRF, where the request information #a is used to request registration with the NRF, and the request information #a includes the correspondence between the analysis identifier and the service.
  • the NWDAF triggers the service operation of the NE registration request (Nnrf_NFManagement_NFRegister_request) in the network element management of the Nnrf interface, and sends the request information #a to the NRF.
  • the request information #a is used to request registration with the NRF.
  • the request information #a includes the corresponding relationship between the analysis ID and the service.
  • the correspondence between the analysis identifier and the service in the request information #a includes: one or more analysis identifiers Analytics ID, and the name of one or more service operations supported by each analysis identifier. That is, take the service as a parameter of the analysis identification.
  • NWDAF first collects and stores the service experience data from AF and the corresponding network data from 5GC NF locally, trains the service experience model based on the service experience data and the corresponding network data, and deploys it locally.
  • This model correspondingly, the NWDAF can support the analysis result open service, the model open service and the data storage service for the analysis ID of the business experience Service Experience. Therefore, the analysis ID in the request information #a sent by NWDAF is related to the service.
  • the request information #a also includes other network element information of the NWDAF, such as one or more of the following information corresponding to the NWDAF: network element type, address information, service The area, etc., is similar to that in the prior art, and will not be repeated here.
  • the NRF receives the request information #a, and stores the network element information registered by the NWDAF, where the network element information includes the corresponding relationship between the analysis identifier and the service (eg, Table 9).
  • the NRF sends a reply message #a to the NWDAF, notifying the NWDAF that the registration is successful.
  • the NRF triggers the NE registration response (Nnrf_NFManagement_NFRegister_response) service operation in the NE management of the Nnrf interface, and sends the reply message #a to the NWDAF to notify the NWDAF that the registration is successful.
  • NE registration response Nnrf_NFManagement_NFRegister_response
  • the first network element determines a preset condition for the NWDAF, where the preset condition includes an analysis identifier that needs to be supported by the NWDAF, and a service name corresponding to the analysis identifier.
  • the PCF when the first network element is a PCF, if the PCF needs to obtain the service experience data analysis result from the NWDAF to adjust the QoS parameters of the service, the PCF first determines that the NWDAF that meets the preset conditions needs to support the service experience Analysis, that is, the analysis identifier supported by the NWDAF that meets the preset conditions needs to include the analysis identifier of Service Experience, and then determines that in the NWDAF that meets the preset conditions, the service name corresponding to the analysis identifier needs to include the analysis result open. The service name of the service.
  • the first network element sends request information #b to the NRF, where the request information #b is used to request address information of the NWDAF network element that meets the preset conditions of the first network element, and the request information #b includes the address information of the first network element
  • the preset condition is that the first network element requires an analysis identifier supported by the NWDAF and a service name corresponding to the analysis identifier.
  • the NRF triggers the Nnrf interface of the NWDAF network element discovery request (Nnrf_NFDiscovery_Request) service operation, and sends request information #b to the NRF, where the request information #b is used to request a network element that meets the preset conditions of the first network element.
  • the request information #b includes an analysis identifier that the first network element requires the NWDAF to support and a service name corresponding to the analysis identifier.
  • the NRF receives the request information #b, and determines an NWDAF that meets the preset requirements of the first network element according to the request information #b.
  • the NRF after receiving the request information #b, the NRF firstly searches the network element information of the first-layer NWDAF registered in the local NRF according to the analysis identifier carried in the request information #b, and determines that the analysis is supported
  • the identified one or more NWDAFs are determined as the first NWDAF list that supports the analysis identification, and then according to the request information #b, the service name corresponding to the analysis identification is carried, and then registered from the NWDAF in the first NWDAF list.
  • One or more NWDAFs supporting the service are searched and determined in the layer 2 network element information, and determined as the second NWDAF list that simultaneously supports the analysis identifier and the service corresponding to the analysis identifier.
  • the NRF first searches and determines one or more NWDAFs that support the service experience analysis identifier from the network element information of the first-layer NWDAF registered in the NRF according to the service experience analysis identifier carried in the request information #b.
  • the NRF sends reply information #b to the first network element, where the reply information #b includes address information of the NWDAF that meets the preset requirements of the first network element.
  • the NRF triggers the Nnrf interface network element discovery request response (Nnrf_NFDiscovery_Request Response) service operation, and sends reply information #b to the first network element, where the reply information #b includes the above-mentioned second NWDAF list
  • NWDAF identification NWDAF ID
  • IP address Internet Protocol address
  • FQDN fully qualified domain name
  • uniform resource locator uniform resource locator URL
  • the NRF may include one or more NWDAFs that meet the preset conditions of the first network element according to the request information #b, that is, the second NWDAF list may include one or more NWDAFs that meet the preset conditions, corresponding to Yes, in the reply information #b sent by the NRF, the address information of the NWDAF that meets the preset conditions of the first network element may also include one or more addresses, which are not limited in this application.
  • the first network element can arbitrarily select one NWDAF as the target NWDAF.
  • the request information #b in the communication method 200 also includes analysis.
  • the corresponding relationship between the identifier and the service name is not limited in this application.
  • the NRF stores the analysis identifier supported by NWDAF and the service name corresponding to the analysis identifier, that is, the NRF stores the correspondence between the analysis identifier supported by NWDAF and the service name supported by NWDAF Therefore, the NRF can assist the first network element to find the NWDAF that meets the preset conditions of the first network element according to the analysis identifier in the preset condition of the first network element and the information of the service name corresponding to the analysis identifier, that is, the NRF
  • the NWDAF determined by the preset conditions of the first network element can be completely matched with the NWDAF actually required by the first network element, that is, the service of the first network element is guaranteed, and the waste of resources is avoided.
  • the third possible implementation manner corresponding to the possible implementation manner #A is further described by taking the analysis of the identification and the hierarchical placement of the service placement as an example.
  • the communication method 100 can be applied to the Rel-17 stage and new stages that may appear later, but is not compatible with the Rel-16 stage.
  • the service name is placed in the first layer of the network element information registered by NWDAF, and then the analysis identifier is placed as a parameter corresponding to the service name in the second layer of the network element information registered by NWDAF.
  • Table 10 shows an example of the NWDAF registered network element information in the possible implementation #A3.
  • the above communication method 100 specifically includes:
  • the NWDAF sends request information #a to the NRF, where the request information #a is used to request registration with the NRF, and the request information #a includes the correspondence between the service and the analysis identifier.
  • the NWDAF triggers the service operation of the NE registration request (Nnrf_NFManagement_NFRegister_request) in the network element management of the Nnrf interface, and sends the request information #a to the NRF.
  • the request information #a is used to request registration with the NRF.
  • the request information #a includes the correspondence between the service name and the analysis ID.
  • the correspondence between the service name and the analysis identifier in the request information #a includes: one or more service names, and one or more analysis identifiers supported by the service operation corresponding to each service name . That is, the analysis is identified as the parameter corresponding to the service name.
  • NWDAF first collects and stores the service experience data from AF and the corresponding network data from 5GC NF locally, trains the service experience model based on the service experience data and the corresponding network data, and deploys it locally.
  • the model correspondingly, the NWDAF can support the analysis result open service, the model open service and the data storage service. Therefore, the corresponding relationship between the service name and the analysis identifier in the request information #a sent by the NWDAF is as follows: the above three services Name and the service experience analysis identifier corresponding to the above three service names. NWDAF can register the above three service names and the Service Experience analysis identifier corresponding to each service name as parameters corresponding to the service name in the NRF.
  • the request information #a also includes other network element information of the NWDAF, such as one or more of the following information corresponding to the NWDAF: network element type, address information, service The area, etc., is similar to that in the prior art, and will not be repeated here.
  • the NRF receives the request information #a, and stores the network element information registered by the NWDAF, where the network element information includes the corresponding relationship between the analysis identifier and the service (for example, Table 10).
  • the NRF sends a reply message #a to the NWDAF, notifying the NWDAF that the registration is successful.
  • the NRF triggers the NE registration response (Nnrf_NFManagement_NFRegister_response) service operation in the NE management of the Nnrf interface, and sends the reply message #a to the NWDAF to notify the NWDAF that the registration is successful.
  • NE registration response Nnrf_NFManagement_NFRegister_response
  • the first network element determines a preset condition for NWDAF, where the preset condition includes a service name that needs to be supported by NWDAF, and an analysis identifier corresponding to the service name.
  • the first network element sends request information #b to the NRF, where the request information #b is used to request address information of the NWDAF network element that meets the preset conditions of the first network element, and the request information #b includes the address information of the first network element
  • the preset condition is that the first network element requires a service name supported by the NWDAF and an analysis identifier corresponding to the service name.
  • the NRF triggers the Nnrf interface of the NWDAF network element discovery request (Nnrf_NFDiscovery_Request) service operation, and sends request information #b to the NRF, where the request information #b is used to request a network element that meets the preset conditions of the first network element.
  • the address information of the NWDAF network element, the request information #b includes the service name required by the first network element to be supported by the NWDAF and the analysis identifier corresponding to the service name.
  • the NRF receives the request information #b, and determines an NWDAF that meets the preset requirements of the first network element according to the request information #b.
  • the NRF after receiving the request information #b, the NRF firstly searches and determines that the service is supported from the network element information of the first-layer NWDAF registered in the local NRF according to the service name carried in the request information #b One or more NWDAFs of the name, determine it as the first NWDAF list supporting the service name, and then carry the analysis identifier corresponding to the service name according to the request information #b, and then register from the NWDAF in the first NWDAF list. Find and determine one or more NWDAFs supporting the analysis identifier in the layer 2 network element information, and determine them as a second NWDAF list that simultaneously supports the service name and the analysis identifier corresponding to the service name.
  • Service Name Nnwdaf_AnalyticsSubscription or Nnwdaf_AnalyticsInfo
  • the NRF sends reply information #b to the first network element, where the reply information #b includes address information of the NWDAF that meets the preset requirements of the first network element.
  • the NRF triggers the Nnrf interface network element discovery request response (Nnrf_NFDiscovery_Request Response) service operation, and sends reply information #b to the first network element, where the reply information #b includes the above-mentioned second NWDAF list
  • NWDAF identification NWDAF ID
  • IP address Internet Protocol address
  • FQDN fully qualified domain name
  • uniform resource locator uniform resource locator URL
  • the NRF may include one or more NWDAFs that meet the preset conditions of the first network element according to the request information #b, that is, the second NWDAF list may include one or more NWDAFs that meet the preset conditions, corresponding to Yes, in the reply information #b sent by the NRF, the address information of the NWDAF that meets the preset conditions of the first network element may also include one or more addresses, which are not limited in this application.
  • the first network element can arbitrarily select one NWDAF as the target NWDAF.
  • the request information #b in the communication method 200 also includes analysis.
  • the corresponding relationship between the identifier and the service name is not limited in this application.
  • the NRF stores the service name supported by NWDAF and the analysis identifier corresponding to the service name, that is, the NRF stores the service name supported by NWDAF and the analysis identifier supported by NWDAF.
  • the NRF can assist the first network element to find the NWDAF that meets the preset conditions of the first network element according to the service name in the preset conditions of the first network element and the analysis identifier corresponding to the service name, and the NWDAF can At the same time, the service name in the preset conditions of the first network element and the analysis identifier corresponding to the service name are satisfied, that is, the NWDAF determined by the NRF through the preset conditions of the first network element can completely match the NWDAF actually required by the first network element, that is, it is guaranteed The service of the first network element is saved, and the waste of resources is avoided.
  • the NWDAF network element information registered in the NRF includes the correspondence between the analysis identifier and the service name
  • the correspondence between the analysis identifier and the service name includes: each analysis identifier corresponds to each
  • the correspondence between service names, or the correspondence between each service name and each analysis identifier corresponding to the service name can be understood as the storage form of the correspondence between analysis identifiers and service names is no longer in the form of one corresponding to multiple stored, but on a one-to-one basis.
  • Table 11 shows an example of NWDAF registration network element information in possible implementation #B.
  • the service name in the above-mentioned corresponding relationship can be used as the first layer, that is, the NRF will preferentially determine the candidate data analysis network element according to the first service name, and then according to the first service name and the first analysis identifier.
  • the analysis identifier in the above-mentioned correspondence can also be used as the first layer, that is, the NRF will prioritize according to the first identifier.
  • the present application proposes a communication method, which enables the NRF to find an NWDAF that matches the actual needs of the first network element through the correspondence between services (or functions) and analysis identifiers, so that the first network element can successfully address the NWDAF that meets its expected requirements. Set the required NWDAF.
  • the NWDAF when registering with the NRF, the NWDAF will clearly indicate the analytical identifiers that the NWDAF can support, the services that can be supported, and the correspondence between the analytical identifiers that can be supported and the services that can be supported.
  • NWDAF requests NWDAF from the NRF, it will also clearly indicate the analysis identifiers that the NWDAF that meets the preset conditions of the first network element needs to support, the services that need to be supported, and the correspondence between the analysis identifiers that need to be supported and the services that need to be supported.
  • the NRF determines the steps to perform local retrieval of NWDAF according to the corresponding method of the identification and service name registered in the local network element information by NWDAF, and finally determines the NWDAF that satisfies the preset conditions of the first network element, and reports to the first network element Feedback the address information of the NWDAF.
  • pre-set may be pre-saved in a device (for example, a network device) by a corresponding code, a table, or other methods that can be used to indicate relevant information
  • a device for example, a network device
  • a corresponding code for example, a table
  • present application does not limit the specific implementation manner, such as the preset rules and preset constants in the embodiments of the present application.
  • the method implemented by the communication device may also be implemented by a component (for example, a chip or a circuit) that can be configured inside the communication device.
  • each network element includes corresponding hardware structures and/or software modules for performing each function.
  • each network element includes corresponding hardware structures and/or software modules for performing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.
  • FIG. 6 is a schematic structural diagram of a communication device 200 .
  • the communication apparatus includes a receiving unit 210, a processing unit 220, and a sending unit 230.
  • the communication apparatus 200 may be the network storage function device or the first network device (ie, the service requesting device) in the above method embodiments, or may be a device for A chip that implements the functions of the network storage function device or the first network device in the above method embodiments.
  • the communication apparatus 200 may correspond to the network storage function device or the first network device in the communication method 100 according to the embodiment of the present application, and the communication apparatus 100 may include a network storage function device or the first network device for executing the network storage function in FIG. 4 . Elements of a method performed by a network device. Moreover, each unit in the communication apparatus 200 and the above-mentioned other operations and/or functions implement the corresponding flow of the communication method 100 in FIG. 4 .
  • the communication apparatus 200 may implement any function possessed by the network storage function network element in the embodiment shown in FIG. 4 .
  • the receiving unit 210 is configured to receive a request message from the service requesting network element, where the request message is used to request information of the target data analysis network element, the request message includes the first analysis identifier and the information of the first service, the target data analysis
  • the network element supports the analysis type corresponding to the first analysis identifier and the first service.
  • the receiving unit 210 is further configured to receive the association information between the first analysis identifier corresponding to the target data analysis network element and the second service sent by the target data analysis network element.
  • the receiving unit 210 is further configured to receive the association information between the second analysis identifier corresponding to the target data analysis network element and the first service sent by the target data analysis network element.
  • the receiving unit 210 is further configured to receive the network element type information of the service requesting network element.
  • the receiving unit 210 is further configured to receive information indicating the association relationship between the first analysis identifier and the first service information.
  • the second service includes a plurality of services
  • the first analysis identifier supports the plurality of services
  • the plurality of services includes the first service
  • the second analysis identification includes multiple analysis identifications
  • the first service supports the multiple analysis identifications
  • the multiple analysis identifications include the first analysis identification
  • a processing unit 220 configured to determine the target data analysis network element according to the first analysis identifier, the information of the first service, and the association information between the first analysis identifier and the first service corresponding to the target data analysis network element .
  • the processing unit 220 is configured to determine a candidate data analysis network element according to the first analysis identifier, and the candidate data analysis network element supports the analysis type corresponding to the first analysis identifier; and then according to the first analysis identifier Information about a service and association information between the first analysis identifier corresponding to the target data analysis network element and the first service, and the target data analysis network element is determined from the candidate data analysis network elements.
  • the processing unit 220 is configured to determine a candidate data analysis network element according to the information of the first service, and the candidate data analysis network element supports the first service; and then according to the first analysis identifier and Association information between the first analysis identifier corresponding to the target data analysis network element and the first service, and the target data analysis network element is determined from the candidate data analysis network elements.
  • the processing unit 220 is configured to determine, according to the network element type information of the service requesting network element, that the service requesting network element is a data analysis network element; and then determine a candidate data analysis network element according to the first analysis identifier. element, the candidate data analysis network element supports the analysis type corresponding to the first analysis identifier; and then analyzes the relationship between the first analysis identifier corresponding to the network element and the first service according to the information of the first service and the target data The association information is used to determine the target data analysis network element from the candidate data analysis network elements.
  • the processing unit 220 is configured to determine, according to the network element type information of the service requesting network element, that the service requesting network element is a data analysis network element; and then determine a candidate data analysis network element according to the information of the first service network element, the candidate data analysis network element supports the first service; and then according to the first analysis identifier and the correlation information between the first analysis identifier and the first service corresponding to the target data analysis network element, from the The target data analysis network element is determined among the candidate data analysis network elements.
  • the sending unit 230 is configured to send the information of the target data analysis network element to the service requesting network element.
  • the sending unit 230 is further configured to send the network element type information of the service requesting network element, where the service requesting network element is the network element requesting the target data analysis network element.
  • the sending unit 230 is further configured to send information indicating the association relationship between the first analysis identifier and the first service information.
  • the communication apparatus 200 may implement any function possessed by the first network element (ie, the service requesting network element) in the embodiment shown in FIG. 4 .
  • the processing unit 220 is configured to determine a preset condition that the requested target data analysis network element needs to meet, that is, to determine the information of the first analysis identifier and the first service corresponding to the target data analysis network element.
  • the processing unit 220 is further configured to determine association information (ie, correspondence) between the plurality of first analysis identifiers and the information of the first service.
  • the sending unit 230 is used to send a request message to the network storage function network element, the request message is used to request the information of the target data analysis network element, and the request message includes the first analysis identifier and the information of the first service (that is, the preset condition), the target data analysis network element supports the analysis type corresponding to the first analysis identifier and the first service.
  • the receiving unit 210 is configured to receive the information of the target data analysis network element.
  • the above-mentioned first service includes at least one of the following services: model request, model subscription, data storage request, and data collection coordination;
  • the second service includes at least one of the following services: model request, Model subscription, data storage request, data collection coordination.
  • the information of the target data analysis network element includes address information of the target data analysis network element, and the address information of the target data analysis network element includes one or more of the following information: Meta ID, Internet Protocol Address, Fully Qualified Domain Name, Uniform Resource Locator.
  • FIG. 7 is a schematic structural diagram of a communication device 300 .
  • the communication apparatus includes a sending unit 310 and a receiving unit 320, and the communication apparatus 300 may be the data analysis network element in the above method embodiments. It may also be a chip for implementing the function of the data analysis network element in the above method embodiments.
  • the communication device 300 can implement any function of the data analysis network element in the embodiment shown in FIG. 4 .
  • the sending unit 310 is configured to send registration request information to the network storage function network element, where the registration request information includes association information between the first analysis identifier corresponding to the target data analysis network element and the first service.
  • the receiving unit 320 is configured to receive the registration response information sent by the network storage function network element.
  • FIG. 8 is a structural block diagram of a communication network element 400 provided according to an embodiment of the present application.
  • the communication network element 400 shown in FIG. 8 includes: a processor 410 , a memory 420 and a communication interface 430 .
  • the processor 410 is coupled to the memory for executing instructions stored in the memory to control the communication interface 430 to send and/or receive signals.
  • processor 410 and the memory 420 may be combined into a processing device, and the processor 410 is configured to execute the program codes stored in the memory 420 to realize the above-mentioned functions.
  • the memory 420 may also be integrated in the processor 410 or independent of the processor 410 .
  • the communication network element 400 may be a network storage function network element or a first network network element (ie, a service requesting network element) in the above method embodiments, or may be a network element for implementing the above method In the embodiment, the network storage function network element or the function chip of the first network network element.
  • the communication network element 400 may correspond to the network storage function network element or the first network network element in the method 100 according to the embodiment of the present application, and the communication network element 400 may include a network storage function for executing the network storage function in FIG. 4 .
  • each unit in the communication network element 400 and the above-mentioned other operations and/or functions are respectively for realizing the corresponding flow of the method 100 . It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.
  • the chip When the communication network element 400 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, a microprocessor or an integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a processing apparatus, including a processor and an interface. The processor can be used to execute the methods in the above method embodiments.
  • the above processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or a It is a central processing unit (CPU), a network processor (NP), a digital signal processing circuit (DSP), or a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • MCU microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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, detailed description is omitted here.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • the methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • 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.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct ram-bus RAM direct ram-bus RAM
  • the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer is made to execute the embodiment shown in FIG. 4 .
  • the present application further provides a computer-readable medium, where the computer-readable medium stores program codes, and when the program codes are run on a computer, the computer is made to execute the embodiment shown in FIG. 4 . method in .
  • the present application further provides a system, which includes the foregoing apparatus or network element.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage network element such as a server, a data center, etc. that includes one or more available mediums integrated.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, solid state disc (SSD) ))Wait.
  • the network-side network elements in the above device embodiments correspond to the terminal network elements and the network-side network elements or terminal network elements in the method embodiments, and corresponding steps are performed by corresponding modules or units, for example, a communication unit (communication interface) execution method.
  • a communication unit communication interface
  • steps of receiving or sending in the embodiment other steps except sending and receiving may be performed by a processing unit (processor).
  • processor processing unit
  • functions of specific units reference may be made to corresponding method embodiments.
  • the number of processors may be one or more.
  • a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • the application running on the computing network element and the computing network element may be components.
  • One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the unit is only a logical function division.
  • there may be other division methods for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer network element (which may be a personal computer, a server, or a network network element, etc.) to execute all or part of the steps of the method in each embodiment 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 disk and other media that can store program codes .

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Abstract

本申请提供了一种通信方法和通信装置，该通信方法包括：从服务请求网元接收请求消息，该请求消息用于请求目标数据分析网元的信息，该请求消息包括第一分析标识和第一服务的信息，该目标数据分析网元支持该第一分析标识对应的分析类型和该第一服务；然后根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元；再向该服务请求网元发送该目标数据分析网元的信息。通过本申请实施例中的方法确定的数据分析网元能与该服务请求网元实际请求的目标数据分析网元完全匹配，避免了资源浪费，保障了该服务请求网元的业务。

Description

一种通信方法和通信装置
本申请要求于2021年02月10日提交中国专利局、申请号为202110185532.7、申请名称为“一种通信方法和通信装置”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，并且更具体地，涉及一种通信方法及通信装置。
背景技术
网络存储功能(network repository function，NRF)网元可用于支持网元服务或者网元发现功能，例如：网络存储功能网元中存储有网络数据分析功能网元(network data analytics function，NWDAF)的信息。
有NWDAF服务需求的网络功能(network function，NF)网元会向NRF网元发送网元发现请求，该请求用于请求符合NF网元预设条件的目标NWDAF网元的信息，NRF网元从NF网元接收该发现请求后，会将NRF网元判断的符合NF网元预设条件的NWDAF信息提供给NF网元。然而，现有技术并没有提供NRF网元如何判断并提供NWDAF信息的方式。
发明内容
本申请提供一种通信方法及通信装置，用于网络存储功能网元提供数据分析网元信息的信息给服务请求网元。
第一方面，本申请实施例提供了一种通信方法，该方法包括：网络存储功能网元从服务请求网元接收请求消息，该请求消息用于请求目标数据分析网元的信息，该请求消息包括第一分析标识和第一服务的信息，该目标数据分析网元支持该第一分析标识对应的分析类型和该第一服务；网络存储功能网元根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元；网络存储功能网元向该服务请求网元发送该目标数据分析网元的信息。
在一种可能的实现中，该目标数据分析网元的信息包括该目标数据分析网元的地址信息，该目标数据分析网元的地址信息包括以下信息中的一个或多个：数据分析网元的标识、互联网协定位址、完全限定域名、统一资源定位符。
在一种可能的实现中，该第一服务包括以下服务的至少一种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
在一种可能的实现中，该第一分析标识对应的分析包括以下分析的至少一种：切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析。
根据本申请实施例的通信方法，每个数据分析网元在向网络存储功能网元注册其对应的网元信息时，会在该网元信息中携带该数据分析网元所支持的服务与分析标识对应的分析类型之间的对应关系，该对应关系包括该数据分析网元所支持的分析标识中每个分析标识对应的一个或者多个服务的信息，或者该数据分析网元所支持的服务中每个服务的信息对应的一个或者多个分析标识；因此当服务请求网元携带其请求的目标数据分析网元需要满足的预设条件向网络存储功能网元进行请求时，该预设条件指该目标数据分析网元的注册网元信息中需要包含的第一分析标识与第一服务的信息之间的关联信息，网络存储功能网元能够根据该第一分析标识与该第一服务的关联信息去查找存储在本地的数据分析网元注册网元信息中包含该第一分析标识与该第一服务的关联信息的数据分析网元，并将其确定为满足该服务请求网元预设条件的目标数据分析网元，并向该服务请求网元发送其确定的目标数据分析网元的信息。网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元能够满足服务请求网元的实际需求，换句话说，网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元不仅能支持服务请求网元请求的该第一服务，还能同时支持服务请求网元请求的该第一分析标识对应的分析类型。
在一些实施例中，上述分析标识用于指示分析的类型，上述服务的信息用于指示该服务，上述服务的信息包括服务的名称。
需要说明的是，数据分析网元支持的每个服务可以对应一个或多个功能，每个功能都有对应的服务，因此在另一种可能的实现方式中，上述通信方法中分析标识与服务的信息的对应关系也可以替换为分析标识与功能的信息的对应关系，通过功能与服务的对应关系可以进一步确定分析标识与服务的对应关系，类似的，上述通信方法中分析标识与服务的信息的对应关系还可以替换为分析标识与其他参数的对应关系，该其他参数与服务之间存在对应关系，或者还可以针对分析标识有类似的替换关系，应理解，无论是直接确定分析标识与服务的对应关系还是间接确定分析标识与服务的对应关系，只要实质上能够确定分析标识与服务的对应关系的替换方式都在本申请的保护范围之内，以分析标识与服务的对应关系为例进行说明不应对本申请造成限定。
在一种可能的实现方式中，数据分析网元注册时携带的对应关系类型与服务请求网元发送的请求信息中内容相对应，比如数据分析网元注册时携带的是功能的信息与分析标识的对应关系，对应的，服务请求网元发送的请求信息中包括目标数据分析网元需要支持的第一功能的信息与第一分析标识。
在另一种可能的实现方式中，数据分析网元注册时携带的对应关系类型与服务请求网元发送的请求信息中内容不一定对应，比如数据分析网元注册时携带的是功能的信息与分析标识的对应关系，而服务请求网元发送的请求信息中包括目标数据分析网元需要支持的第一服务的信息与第一分析标识，则网络存储功能网元还需获取功能与服务之间的对应关系。
在一种可能的实现中，数据分析网元也可以向其他具有类似功能的网元(如数据收集协调功能网元(data collection coordination function，DCCF)或数据存储功能网元(data repository function，DRF)等)进行注册，对应的，服务请求网元也可以向其他具有类似功能的网元(如数据收集协调功能网和数据存储功能网元等)请求满足其预设条件的目标数据分析网元的信息。
结合第一方面，在第一方面的某些实现方式中，该通信方法还包括网络存储功能网元接收该目标数据分析网元发送的该目标数据分析网元对应的该第一分析标识与第二服务之间的关联信息。
结合第一方面，在第一方面的某些实现方式中，该第二服务包括多个服务，该第一分析标识支持该多个服务，该多个服务包括该第一服务。
在一种可能的实现方式中，网络存储功能网元中数据分析网元的注册网元信息的存储方式可以是存储一个或多个分析标识以及与每个分析标识对应的一个或者多个服务信息的列表(或集合)，和/或，存储一个或多个服务信息以及与每个服务信息对应的一个或者多个分析标识的列表(或集合)。
在一种可能的实现中，上述第二服务包括以下服务的一种或者多种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
结合第一方面，在第一方面的某些实现方式中，网络存储功能网元根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元，包括:根据该第一分析标识确定候选的数据分析网元，该候选的数据分析网元支持该第一分析标识对应的分析类型；根据该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
根据本申请实施例的通信方法，通过本申请的通信方法确定的目标数据分析网元在之前向网络存储功能网元进行注册时会在注册的网元信息中携带该目标数据分析网元所支持的一个或多个分析标识以及每个分析标识所对应的一个或者多个服务(即该第二服务)的信息，该一个或多个分析标识中包括服务请求网元预设条件中的该第一分析标识，该第一分析标识对应的一个或多个服务的信息中包括该第一服务的信息，换句话说，网络存储功能网元中存储的数据分析网元的注册网元信息以分析标识为查找索引，将每个分析标识对应的一个或多个服务的信息作为分析标识的参数，待服务请求网元携带第一分析标识与第一服务的信息向网络存储功能网元请求数据分析网元的信息时，网络存储功能网元会优先根据第一分析标识去确定注册在本地的数据分析网元中注册网元信息包含该第一分析标识的候选的数据分析网元，再进一步根据该第一服务信息和候选数据分析网元的网元信息中该第一分析标识对应的服务的信息去确定候选数据分析网元中支持该第一分析标识对应的分析与该第一服务之间具有对应关系的数据分析网元，并将其确定为满足服务请求网元预设条件的目标数据分析网元，并向该服务请求网元发送其确定的目标数据分析网元的信息。网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元能够足服务请求网元的实际需求精确匹配，换句话说，网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元不仅能支持服务请求网元请求的该第一分析标识对应的分析类型，还能同时支持服务请求网元请求的该第一服务。
结合第一方面，在第一方面的某些实现方式中，该通信方法还包括网络存储功能网元接收该目标数据分析网元发送的该目标数据分析网元对应的第二分析标识与该第一服务之间的关联信息。
结合第一方面，在第一方面的某些实现方式中，该第二分析标识包括多个分析标识，该第一服务支持该多个分析标识，该多个分析标识包括该第一分析标识。
在一种可能的实现中，上述第二分析标识对应的分析包括以下分析的一种或者多种：切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析。
结合第一方面，在第一方面的某些实现方式中，网络存储功能网元根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元，包括:网络存储功能网元根据该第一服务的信息确定候选的数据分析网元，该候选的数据分析网元支持该第一服务；网络存储功能网元根据该第一分析标识和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
根据本申请实施例的通信方法，通过本申请的通信方法确定的目标数据分析网元在之前向网络存储功能网元进行注册时会在注册的网元信息中携带该目标数据分析网元所支持的一个或多个服务的信息以及每个服务的信息所对应的一个或者分析标识(即该第二分析标识)，该一个或多个服务的信息包括服务请求网元预设条件中的该第一服务的信息，该第一服务的信息对应的一个或多个分析标识中包括该第一分析标识，换句话说，网络存储功能网元中存储的数据分析网元的注册网元信息以服务的信息为查找索引，将每个服务的信息对应的一个或多个分析标识作为服务的信息的参数，待服务请求网元携带第一分析标识与第一服务的信息向网络存储功能网元请求数据分析网元的信息时，网络存储功能网元会优先根据第一服务的信息去确定注册在本地的数据分析网元中注册网元信息包含该第一服务的信息的候选数据分析网元，再进一步根据该第一分析标识和候选数据分析网元的网元信息中该第一服务的信息对应的分析标识去确定候选数据分析网元中支持该第一服务与该第一分析标识对应的分析之间具有对应关系的数据分析网元，并将其确定为满足服务请求网元预设条件的目标数据分析网元，并向该服务请求网元发送其确定的目标数据分析网元的信息。网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元能够足服务请求网元的实际需求精确匹配，换句话说，网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元不仅能支持服务请求网元请求的该第一服务，还能同时支持服务请求网元请求的该第一分析标识对应的分析类型。
结合第一方面，在第一方面的某些实现方式中，该服务请求网元发送的请求信息还包括该服务请求网元的网元类型信息，在根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元之前，该方法还包括根据该服务请求网元的网元类型信息确定该服务请求网元为数据分析网元。
根据本申请实施例的通信方法，每个数据分析网元在向网络存储功能网元进行注册的时候，会在其所注册的网元信息中携带该数据分析网元支持的服务的信息与网元类型的对应关系以及该数据分析网元支持的服务的信息与支持的分析标识的对应关系，服务请求网元向网络存储功能发送的请求信息中不仅包括目标数据分析网元需要支持的第一分析标识与第一服务的信息，还需要包括该服务请求网元的网元类型的信息，网络存储功能网元接收到该请求信息后，会先判断该服务请求网元的网元类型，若该服务请求网元的网元类型为数据分析网元，则会进一步根据上述方法确定目标数据分析网元，即根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间 的关联信息确定该目标数据分析网元；否则，若该服务请求网元的网元类型为非数据分析网元，网络存储功能网元可不用再根据第一分析标识与第一服务的对应关系去查找目标数据分析网元，可将分析标识中包括该第一分析标识和服务信息中包括该第一服务的信息的数据分析网元确定为目标数据分析网元，此时第一服务的类型为分析结果开放服务。网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元不仅能支持服务请求网元请求的该第一服务，还能同时支持服务请求网元请求的该第一分析标识对应的分析类型。本申请实施例的通信方法不仅能确定出满足服务请求网元的实际需求的目标数据分析网元，保障服务请求网元的业务持续性，而且本申请实施例的通信方法还能与5G标准的第二个版本兼容。
结合第一方面，在第一方面的某些实现方式中，该服务请求网元发送的请求信息还包括用于指示该第一分析标识与该第一服务信息的关联关系的信息。
在一些实施例中，服务请求网元会向网络存储功能网元同时请求多个目标数据分析网元，或者服务请求网元所请求的一个目标数据分析网元需要支持多个第一分析标识与多个第一服务，此时该服务请求网元发送的请求信息还需要包括服务请求网元所请求的目标数据分析网元需要支持的多个第一服务的信息与需要支持的多个第一分析标识之间的关联信息，因此网络存储功能网元才能够根据该请求信息中的该关联信息在本地的存储信息中准确找出满足该关联信息的目标数据分析网元，并将其发送给该服务请求网元，使得其业务得以保障。
需要说明的是，网络存储功能网元根据服务请求网元的请求信息确定的满足服务请求网元预设条件的目标数据分析网元可以包括一个或多个，对应的，网络存储功能网元发送的目标数据分析网元的信息中也可以包括一个或多个数据分析网元的信息，本申请在此不作限定。
还需要说明的是，如果网络存储功能网元发送的目标数据分析网元的信息中包括多个目标数据分析网元的信息，服务请求网元可以从中任意选择一个数据分析网元的信息。
第二方面，本申请实施例提供了一种通信方法，该方法包括：服务请求网元向网络存储功能网元发送请求消息，该请求消息用于请求目标数据分析网元的信息，该请求消息包括第一分析标识和第一服务的信息，该目标数据分析网元支持该第一分析标识对应的分析类型和该第一服务；该服务请求网元接收来自该网络存储功能网元的该目标数据分析网元的信息。
在一种可能的实现中，该目标数据分析网元的信息包括该目标数据分析网元的地址信息，该目标数据分析网元的地址信息包括以下信息中的一个或多个：数据分析网元的标识、互联网协定位址、完全限定域名、统一资源定位符。
在一种可能的实现中，该第一服务包括以下服务的至少一种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
在一种可能的实现中，该第一分析标识对应的分析包括以下分析的至少一种：切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析。
根据本申请实施例的通信方法，服务请求网元向网络存储功能网元请求满足其预设条件的目标数据分析网元的信息时，会在其发送的请求信息中携带与其预设条件对应的第一 分析标识与第一服务的信息，因此网络存储功能网元能够根据该第一分析分析标识、该第一服务的信息以及存储在网络存储功能网元本地的数据分析网元的注册网元信息确定出满足服务请求网元预设条件的目标数据分析网元的信息，该存储在网络存储功能网元本地的数据分析网元的注册网元信息中包括每个数据分析网元所支持的服务与所支持的分析标识之间的对应关系，因此该服务请求网元能够接受到满足其预设条件的目标数据分析网元的信息，解决了网络存储功能网元确定的数据分析网元不一定能够同时支持该第一分析标识对应的分析和该第一服务问题，使得该服务请求网元接收到数据分析网元的信息能够与其目标数据分析网元的信息精确匹配，保障了该服务请求网元的业务。
在一些实施例中，上述分析标识用于指示分析的类型，上述服务的信息用于指示该服务，上述服务的信息包括服务的名称。
需要说明的是，数据分析网元支持的每个服务可以对应一个或多个功能，每个功能都有对应的服务，因此在另一种可能的实现方式中，上述通信方法中服务请求网元发送的请求信息中第一服务的信息也可以替换为第一功能的信息，该第一功能与该第一服务相对应，通过功能与服务的对应关系可以进一步确定分析标识与服务的对应关系，类似的，上述通信方法中分析标识与服务的信息的对应关系还可以替换为分析标识与其他参数的对应关系，该其他参数与服务之间存在对应关系，或者还可以针对分析标识有类似的替换关系，应理解，无论是直接确定分析标识与服务的对应关系还是间接确定分析标识与服务的对应关系，只要实质上能够确定分析标识与服务的对应关系的替换方式都在本申请的保护范围之内，以分析标识与服务的对应关系为例进行说明不应对本申请造成限定
在一种可能的实现方式中，数据分析网元注册时携带的对应关系类型与服务请求网元发送的请求信息中内容相对应，比如数据分析网元注册时携带的是功能的信息与分析标识的对应关系，对应的，服务请求网元发送的请求信息中包括目标数据分析网元需要支持的第一功能的信息与第一分析标识。
在另一种可能的实现方式中，数据分析网元注册时携带的对应关系类型与服务请求网元发送的请求信息中内容不一定对应，比如数据分析网元注册时携带的是功能的信息与分析标识的对应关系，而服务请求网元发送的请求信息中包括目标数据分析网元需要支持的第一服务的信息与第一分析标识，则网络存储功能网元还需获取功能与服务之间的对应关系。
在一种可能的实现中，服务请求网元也可以向其他具有类似功能的网元(如数据收集协调功能网元(data collection coordination function，DCCF)或数据存储功能网元(data repository function，DRF)等)请求满足其预设条件的目标数据分析网元的信息，对应的数据分析网元也可以向其他具有类似功能的网元(如数据收集协调功能网和数据存储功能网元等)进行注册。
结合第二方面，在第二方面的某些实现方式中，服务请求网元发送的请求信息还包括服务请求网元的网元类型信息，该服务请求网元为请求该目标数据分析网元的信息。
根据本申请实施例的通信方法，服务请求网元发送的请求信息中除了包括满足其预设条件的目标数据分析网元所支持的第一分析类型对应的第一分析标识与第一服务对应的第一服务信息，还包括该服务请求网元的网元类型信息，网络存储功能网元接收到该请求信息后，会先判断该服务请求网元的网元类型，若该服务请求网元的网元类型为数据分析 网元，则会进一步根据上述方法确定目标数据分析网元，即根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元；否则，若该服务请求网元的网元类型为非数据分析网元，网络存储功能网元可不用再根据第一分析标识与第一服务的对应关系去查找目标数据分析网元，可将分析标识中包括该第一分析标识和服务信息中包括该第一服务的信息的数据分析网元确定为目标数据分析网元，此时第一服务的类型为分析结果开放服务。网络存储功能网元通过本申请的通信方法确定出的目标数据分析网元不仅能支持服务请求网元请求的该第一服务，还能同时支持服务请求网元请求的该第一分析标识对应的分析类型。本申请实施例的通信方法不仅能确定出满足服务请求网元的实际需求的目标数据分析网元，保障服务请求网元的业务持续性，而且本申请实施例的通信方法还能与5G标准的第二个版本兼容。
结合第二方面，在第二方面的某些实现方式中，服务请求网元发送的请求信息还包括用于指示该第一分析标识与该第一服务信息的关联关系的信息。
在一些实施例中，服务请求网元会向网络存储功能网元同时请求多个目标数据分析网元，或者服务请求网元所请求的一个目标数据分析网元需要支持多个第一分析标识与多个第一服务，此时该服务请求网元发送的请求信息还需要包括服务请求网元所请求的目标数据分析网元需要支持的多个第一服务的信息与需要支持的多个第一分析标识之间的关联信息，因此网络存储功能网元才能够根据该请求信息中的该关联信息在本地的存储信息中准确找出满足该关联信息的目标数据分析网元，并将其发送给该服务请求网元，使得其业务得以保障。
还需要说明的是，如果服务请求网元接收的目标数据分析网元的信息中包括多个目标数据分析网元的信息，服务请求网元可以从中任意选择一个数据分析网元的信息。
第三方面，本申请实施例提供了一种通信方法，该方法包括：目标数据分析网元向网络存储功能网元发送该目标数据分析网元对应的第一分析标识与第一服务之间的关联信息。
在一些实施例中，上述第一分析标识与第一服务之间的关联信息具体体现为该第一分析标识与该第一服务的信息之间的对应关系，该第一分析标识用于指示第一分析的分析类型，该第一服务的信息用于指示该第一服务，该第一服务的信息包括第一服务的服务名称。
在一种可能的实现中，该第一服务包括以下服务的至少一种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
在一种可能的实现中，该第一分析标识对应的分析包括以下分析的至少一种：切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析。
结合第三方面，在第三方面的某些实现方式中，该目标数据分析网元向网络存储功能网元发送该目标数据分析网元对应的第一分析标识与第一服务之间的关联信息包括：该目标数据分析网元向网络存储功能网元发送该目标数据分析网元对应的该第一分析标识与第二服务之间的关联信息，所述第二服务包括多个服务，所述第一分析标识支持所述多个服务，该多个服务包括该第一服务。
在一种可能的实现中，上述第二服务包括以下服务的一种或者多种：模型请求服务、 模型订阅服务、数据存储请求服务、数据收集协调服务。
结合第三方面，在第三方面的某些实现方式中，该目标数据分析网元向网络存储功能网元发送该目标数据分析网元对应的第一分析标识与第一服务之间的关联信息包括：该目标数据分析网元向网络存储功能网元发送的该目标数据分析网元对应的第二分析标识与该第一服务之间的关联信息，所述第二分析标识包括多个分析标识，所述第一服务支持所述多个分析标识，该多个分析标识包括该第一分析标识。
在一种可能的实现中，该第二分析标识对应的分析包括以下分析的一种或者多种：切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析。
根据本申请实施例的通信方法，每个数据分析网元在向网络存储功能网元注册其对应的网元信息时，会在该网元信息中携带该数据分析网元所支持的服务与分析标识对应的分析类型之间的对应关系，该对应关系包括该数据分析网元所支持的分析标识中每个分析标识对应的一个或者多个服务的信息，或者该数据分析网元所支持的服务中每个服务的信息对应的一个或者多个分析标识；同理，该目标数据分析网元在向网络存储功能网元注册其对应的网元信息时，会在该网元信息中携带该数据分析网元所支持的服务与分析标识对应的分析类型之间的对应关系，该目标数据分析网元支持的分析标识中包括第一分析标识，该第一分析标识对应的一个或者多个服务(即第二服务)中包括该第一服务，或者，该目标数据分析网元支持的服务中包括第一服务，该第一服务的信息对应的一个或者多个分析标识(即第二分析标识)中包括该第一分析标识。
因此，网络存储功能网元能够根据该第一分析标识与该第一服务的关联信息去查找存储在本地的数据分析网元注册网元信息中包含该第一分析标识与该第一服务的关联信息的数据分析网元，从至少一个数据分析网元中找到该目标分析网元。网络存储功能网元通过本申请的通信方法能够准确找出能够同时满足该第一分析标识对应的第一分析与该第一服务的目标数据网元，解决了网络存储功能网元确定的数据分析网元与该数据分析网元不匹配的问题。
在一种可能的实现中，数据分析网元也可以向其他具有类似功能的网元(如数据收集协调功能网元(data collection coordination function，DCCF)或数据存储功能网元(data repository function，DRF)等)进行注册，对应的，服务请求网元也可以向其他具有类似功能的网元(如数据收集协调功能网和数据存储功能网元等)请求满足其预设条件的目标数据分析网元的信息。
在一种可能的实现方式中，数据分析网元发送的注册网元信息的格式可以是发送一个或多个分析标识以及与每个分析标识对应的一个或者多个服务信息的列表(或集合)，和/或，发送一个或多个服务信息以及与每个服务信息对应的一个或者多个分析标识的列表(或集合)。
第四方面，提供了一种通信装置，该装置可以用来执行第一方面及第一方面的任意可能的实现方式中的通信设备的操作。具体地，通信装置包括用于执行上述第一方面所描述的步骤或功能相对应的部件(means)可以是第一方面的第一通信设备。该步骤或功能可以通过软件实现，或硬件实现，或者通过硬件和软件结合来实现。
第五方面，提供了一种通信装置，该装置可以用来用于执行第二方面及第二方面的任 意可能的实现方式中的通信设备的操作。具体地，该装置可以包括用于执行上述第二方面所描述的步骤或功能相对应的部件(means)。该步骤或功能可以通过软件实现，或硬件实现，或者通过硬件和软件结合来实现。
第六方面，提供了一种通信装置，该装置可以用来执行第三方面及第三方面的任意可能的实现方式中的通信设备的操作。具体地，通信装置包括用于执行上述第三方面所描述的步骤或功能相对应的部件(means)可以是第三方面的第一通信设备。该步骤或功能可以通过软件实现，或硬件实现，或者通过硬件和软件结合来实现。
第七方面，提供了一种计算机可读介质，该计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述第一方面至第三方面中任一种可能实现方式中的方法。
第八方面，提供了一种芯片***，包括存储器和处理器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得安装有该芯片***的通信设备执行上述第一方面至第三方面中任一种可能实现方式中的方法。
第九方面，提供了一种芯片，芯片包括处理器和通信接口，该通信接口用于与外部器件或内部器件进行通信，该处理器用于实现上述第一方面至第三方面中任一种可能实现方式中的方法。
在一种可能的实现方式中，该芯片还可以包括存储器，该存储器中存储有指令，处理器用于执行存储器中存储的指令或源于其他的指令。当该指令被执行时，处理器用于实现上述第一方面至第三方面中任一种可能实现方式中的方法，在一种可能的实现方式中，该芯片可以集成在接入网设备上。
第十方面，提供了一种计算机程序产品，该计算机程序产品包括：计算机程序(也可以称为代码，或指令)，当该计算机程序被运行时，使得计算机执行上述第一方面至第三方面中任一种可能实现方式中的方法。
第十一方面，提供了一种通信设备，包括，处理器，存储器，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得该通信装置执行第一至第三方面中任一种可能实现方式中的通信方法。
该处理器为一个或多个，该存储器为一个或多个。该存储器可以与该处理器集成在一起，或者该存储器与处理器分离设置。
一个可能的设计中，提供了一种通信设备，包括通信接口、处理器和存储器。该处理器用于控制通信接口收发信号，该存储器用于存储计算机程序，该处理器用于从存储器中调用并运行该计算机程序，使得该通信设备执行第一至第三方面任一种可能实现方式中的方法。
第十二方面，提供了一种通信***，该通信***包括：网络存储功能网元，用于执行第一方面中任一种可能实现方式中的方法；以及服务请求网元，用于执行第二方面中任一种可能实现方式中的方法。
第十三方面，提供了一种通信***，该通信***包括服务请求网元、网络存储功能网元与数据分析网元中的至少两个网元。
附图说明
图1是本申请实施例方法适用的应用场景的示意图。
图2是数据分析网元向网络存储功能网元注册的流程示意图。
图3是第一网元向网络存储功能网元请求数据分析网元信息的流程示意图。
图4是本申请中通信方法的一例实施例的示意性流程图。
图5是本申请中通信方法的又一例实施例的示意图。
图6是本申请实施例提供的一种通信装置示意性框图。
图7是本申请实施例提供的另一种通信装置示意性框图。
图8是本申请实施例提供的一种通信设备的结构示意图。
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。
本申请实施例的技术方案可以应用于各种通信***，例如：长期演进(Long Term Evolution，LTE)***、LTE频分双工(Frequency Division Duplex，FDD)***、LTE时分双工(Time Division Duplex，TDD)、通用移动通信***(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信***、第五代(5th Generation，5G)***、未来的第五点五代(5.5th generation，5.5G)、第六代(6th generation，6G)或新无线(New Radio，NR)等。
下面以第五代***为例，结合图1对本申请适用的一种网络架构进行说明。
如图1所示，该通信***包括但不限于以下网元：
1、终端设备
本申请实施例中的终端设备也可以称为：用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、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等。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：移动手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving or autopilot)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、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、个人数字助理(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，未来5G网络中的终端设备或者未来演进的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。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设 备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。此外，在本申请实施例中，终端设备还可以是物联网(internet of things，IoT)***中的终端设备。
另外，在本申请实施例中，终端设备还可与其他通信***的终端设备进行通信，例如，设备间通信等。例如，该终端设备还可以与其他通信***的终端设备进行时间同步报文的传输(例如，发送和/或接受)。
2、无线接入网(radio access network，RAN)
无线接入网是基于无线通信技术实现接入网络功能的接入网。无线接入网能够管理无线资源，为终端提供无线接入或者空口接入服务，进而完成控制信号和用户数据在终端和核心网之间的转发。
作为示例而非限定，无线接入网可以是LTE***中的演进型基站(evolved NodeB，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，或者该接入设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的接入设备或者未来演进的PLMN网络中的接入设备等，可以是WLAN中的接入点(access point，AP)，可以是NR***中的gNB本申请实施例并不限定。
3、网络数据分析功能网元(network data analytics function，NWDAF)
网络数据分析功能网元NWDAF具备以下至少一种功能：数据收集功能、模型训练功能、模型反馈功能、分析结果推理功能、分析结果反馈功能、数据存储功能、数据收集协调功能。其中，数据收集功能是指用于收集来自网络网元、第三方业务服务器、终端设备或网管***中的数据；模型训练功能是指基于相关输入数据做分析训练得到模型；模型反馈功能是指将训练好的机器学习模型发送给支持推理功能的网元；分析结果推理功能基于训练好的机器学习模型以及推理数据做推理确定数据分析结果；分析结果反馈功能可以向网络网元、第三方业务服务器、提供终端设备或网管***提供数据分析结果，该分析结果可协助网络选择业务的服务质量参数，或协助网络执行流量路由，或协助网络选择背景流量传输策略等；数据存储功能是指NWDAF网元可以本地存储训练数据或者推理数据；数据收集协调功能是指NWDAF网元可以辅助其他NWDAF网元获取NF上的数据，如其他NWDAF网元(如NWDAF X)可以先向该NWDAF网元请求NF上的数据，如果该NWDAF网元上已经存有NF上的数据，则直接发送给NWDAF X网元，否则的话，该NWDAF先向NF请求该NF上的数据，然后将获取的该NF上的数据发送给NWDAF X网元。
NWDAF典型应用场景有：终端参数的定制或优化，即NWDAF通过收集用户连接管理、移动性管理、会话管理、接入的业务等信息，利用可靠分析和预测模型，对不同类型用户进行评估和分析，构建用户画像，确定用户的移动轨迹和业务使用习惯，以及预测用户行为，5G网络基于分析和预测数据，优化用户移动性管理参数和无线资源管理参数等；业务(路径)的优化，即，NWDAF通过收集网络性能、特定区域业务负荷、用户业务体 验等信息，利用可靠网络性能分析和预测模型，对不同类型业务进行评估、分析，构建业务画像，确定业务的体验质量(quality of experience，QoE)、业务体验(service experience)、业务路径或者5G服务质量(quality of service，QoS)参数等内在关联，优化业务路径、业务路由、5G边缘计算、业务对应5G QoS等；AF对业务参数的优化，比如，车联网是5G网络的重要技术，在车联网的自动驾驶场景中，车辆即将经过的基站的网络性能(例如QoS信息、业务负荷)预测对提高车联网的服务质量有着重要作用。例如车联网服务器可以基于网络性能的预测信息判断是否继续保持无人驾驶模式。NWDAF通过收集网络性能、特定区域业务负荷等信息，利用可靠网络性能分析和预测模型，实现对网络性能的统计和预测，辅助AF优化参数。
在本申请的实施例中，NWDAF可以是一个单独的网元，也可以与其他网元合设。例如，NWDAF网元可以与AMF合设或者与会话管理功能网元(session management function，SMF)网元合设。
4、网络存储功能网元(network repository function，NRF)
网络存储功能网元可用于支持网元服务或者网元发现功能，从网络功能(network function，NF)实例接收NF发现请求，并将发现的NF实例的信息提供给NF实例。以及用于支持维护可用NF实例及其支持的服务的NF配置文件。在本申请实施例中，可用于支持网元服务或者网元发现功能。
5、会话管理功能网元(session management function，SMF)
会话管理功能网元主要用于会话管理、终端设备的网络互连协议(internet protocol，IP)地址分配和管理、选择可管理用户面功能(user plane function，UPF)网元、策略控制和收费功能接口的终结点以及下行数据通知等。在本申请实施例中，可用于实现会话管理网元的功能。
6、接入和移动性管理功能网元(access and mobility management function，AMF)
接入和移动性管理功能网元主要用于移动性管理和接入管理等，可以用于实现移动性管理实体(mobility management entity，MME)功能中除会话管理之外的其它功能，例如，合法监听、或接入授权(或鉴权)等功能。在本申请实施例中，可用于实现接入和移动管理网元的功能。
7、策略控制网元(policy control function，PCF)
策略控制网元用于指导网络行为的统一策略框架，为控制平面功能网元(例如AMF，SMF网元等)提供策略规则信息等。
8、应用功能网元(application function，AF)
应用功能网元用于提供业务，或者用于进行应用影响的数据路由，接入网络开放功能网元，或，与NWDAF网元交互业务数据进行策略控制等。
9、用户面功能网元(user plane function，UPF)
用户面功能网元可用于分组路由和转发、或用户面数据的QoS参数处理等。用户数据可通过该网元接入到数据网络(data network，DN)。在本申请实施例中，可用于实现用户面网元的功能。
10、网络能力开放功能网元(network exposure function，NEF)：用于向外部开放由3GPP网络功能提供的业务和网络能力信息(如终端位置、会话是否可达)等。
在上述网络架构中，N2接口为RAN和AMF网元的接口，用于无线参数、非接入层(non-access stratum，NAS)信令的发送等；N3接口为RAN和UPF网元之间的接口，用于传输用户面的数据等；N4接口为SMF网元和UPF网元之间的接口，用于传输例如业务策略、N3连接的隧道标识信息，数据缓存指示信息，以及下行数据通知消息等信息。N6接口为DN网元和UPF网元之间的接口，用于传输用户面的数据等。
应理解，在上述网络架构中，NWDAF网元可以通过服务化接口与其他任何网元进行信息交互，比如通过服务化接口从其他网元(如AMF、SMF等)收集终端在网元上产生的数据，通过Nnwdaf接口向其他网元(如AMF、PCF等)提供数据分析结果(Analytics)、模型(Machine Learning Model，也称机器学习模型)、数据(data)等。
应理解，上述应用于本申请实施例的网络架构仅是举例说明的从传统点到点的架构和服务化架构的角度描述的网络架构，适用本申请实施例的网络架构并不局限于此，任何能够实现上述各个网元的功能的网络架构都适用于本申请实施例。
应理解，图1中的各个网元之间的接口名称只是一个示例，具体实现中接口的名称可能为其他的名称，本申请对此不作具体限定。此外，上述各个网元之间的所传输的信息(或信令)的名称也仅仅是一个示例，对信息本身的功能不构成任何限定。
需要说明的是，上述网元也可以称为实体、设备、装置或模块等，本申请并未特别限定。并且，在本申请中，为了便于理解和说明，在对部分描述中省略网元这一描述，例如，将NWDAF网元简称NWDAF，此情况下，该“NWDAF”应理解为NWDAF网元，以下，省略对相同或相似情况的说明。
可以理解的是，上述功能网元既可以是硬件设备中的网络元件，也可以是在专用硬件上运行软件功能，或者是平台(例如，云平台)上实例化的虚拟化功能。
可以理解的是，在图1所示的通信***中，各组成网元的功能仅为示例性的，各个组成网元在应用于本申请的实施例中时，并非全部功能都是必需的。
图1中的NRF为网络存储功能网元，其功能类似于传统网络中网域名称服务器(domain name server，DNS)，各网元可以将自身的网元的信息(NF Profile)注册在NRF中，NRF可以辅助其他网元获取满足其要求的相关网元的信息。
接下来以NWDAF为例，结合图2对NWDAF向NRF的注册过程进行详细说明。
步骤1：NWDAF携带NWDAF的网元信息(NWDAF profile)触发Nnrf接口上网元管理中网元注册请求(Nnrf_NFManagement_NFRegister_request)服务操作，向NRF发起NWDAF网元的注册请求，用于注册NWDAF网元信息；
在一种可能的实现方式中，表1示出了NWDAF网元信息(NWDAF profile)所包括的信息内容，如下：
表1
Figure PCTCN2022075346-appb-000001
进一步地，表1中的NnwdafInfo所包括的内容如表2所示，如下：
表2
Figure PCTCN2022075346-appb-000002
表1中的NFService(网元服务的信息)所包括的内容如表3所示，如下：
表3
Figure PCTCN2022075346-appb-000003
值得说明的是，本发明中涉及网元的服务的信息都可以参考表3的内容。例如，假设网元为NWDAF网元，那么NWDAF支持的Nnwdaf_AnalyticsSubscription服务的信息包括Nnwdaf_AnalyticsSubscription服务的服务实例标识或者Nnwdaf_AnalyticsSubscription服务的服务名称(也就是Nnwdaf_AnalyticsSubscription)，NWDAF的其他服务都可以参考此处描述，不再赘述。
更进一步地，表3中，服务名称(ServiceName)包括NWDAF网元的分析结果订阅服务(Nnwdaf_AnalyticsSubscription)和/或NWDAF网元的分析结果信息服务(Nnwdaf_AnalyticsInfo)两种。
表2中的EventId与Analytics ID对应，表4示例性的示出了Analytics ID的相关内 容：
表4
Figure PCTCN2022075346-appb-000004
值得说明的是，本发明中如果NWDAF的信息中包括表4中的任一个或者多个分析标识时，标识该NWDAF支持该一个或者多个分析标识对应的分析类型，如Analytics ID＝Service Experience，NWDAF提供该业务体验类型的数据分析，相应地，NWDAF可以提供业务体验类型对应的的NWDAF的服务(如分析结果订阅服务，详细参见表5)或者(详细参见表5)的NWDAF的功能(如分析结果推理功能，详细参见表6)。
步骤2：NRF收到该注册请求后存储NWDAF注册的NWDAF网元信息(NWDAF profile)；
步骤3：NRF触发Nnrf接口上网元管理中网元注册响应(Nnrf_NFManagement_NFR egister_response)服务操作向NWDAF发送回复信息，通知NWDAF注册成功。
接下来依然以NWDAF为例，结合图3对NWDAF向NRF完成注册以后，NRF辅助其他网元发现满足其要求的NWDAF的过程进行详细说明。
步骤1：第一网元(即服务请求网元)触发Nnrf接口上网元发现请求(Nnrf_NFDiscovery_Request)服务操作，向NRF发送请求信息，该请求信息用于请求符 合第一网元预设条件的NWDAF的地址信息，该请求信息中包括第一网元的预设条件信息，该预设条件信息包括分析标识(Analytics ID)以及服务名称(Service Name)；
在一种可能的实现方式中，该预设条件信息中，分析标识Analytics ID包括表4示出的内容，服务名称Service Name包括NWDAF网元的分析结果订阅服务(Nnwdaf_Analyt icsSubscription)或者NWDAF网元的分析结果信息服务(Nnwdaf_AnalyticsInfo)。
步骤2：NRF接收该请求信息并确定符合第一网元设备条件的目标NWDAF的地址信息，比如数据分析网元的标识(NWDAF ID)、互联网协定位址(IP address)、完全限定域名(fully qualified domain name，FQDN)、统一资源定位符(uniform resource locator，URL)等信息。
步骤3：NRF触发Nnrf接口上网元发现请求响应(Nnrf_NFDiscovery_Request Response)服务操作，向第一网元发送回复信息，该回复信息中包括符合第一网元预设条件的NWDAF的地址信息。
应理解，上述第一网元为有NWDAF的地址信息需求的网元，比如使用分析结果开放服务的PCF网元。
通过以上关于NRF辅助第一网元发现满足其要求的NWDAF的描述可知，NRF会根据第一网元发送的请求信息中的分析标识(Analytics ID)以及服务名称(Service Name)去确定符合第一网元预设条件的NWDAF。
在5G标准的第二个版本(3rd generation partnership project release 16，3GPP Rel-16)中，NWDAF针对一个分析标识(Analytics ID)所提供的服务的名称(Service Name)只包括分析结果开放服务，也就是NWDAF网元的分析结果订阅服务(Nnwdaf_Analytics Subscription)或者NWDAF网元的分析结果信息服务(Nnwdaf_AnalyticsInfo)，该分析结果开放服务对应于数据收集、模型训练、分析结果推理等多个功能，也就是说，数据收集、模型训练、分析结果推理等功能共同为该分析结果开放服务提供服务的输出。
随着5G标准的第三个版本(3rd generation partnership project release 17，3GPP Rel-17)的提出，NWDAF针对一个分析标识(Analytics ID)所提供的服务类型以及功能也发生了变化，针对同一个分析标识Analytics ID，NWDAF除了支持上述分析结果开放服务外，还新增了其他的服务类型，Rel-17阶段NWDAF针对同一个分析标识Analytics ID所提供的服务类型如表5所示：
表5
Figure PCTCN2022075346-appb-000005
在Rel-17阶段，NWDAF网元的功能被分解为数据收集功能、模型训练功能、推理功能、数据存储功能以及数据收集协调功能等。
应理解，上述服务中每一类服务可以对应一个或者多个功能，表6示出了服务与功能之间一种可能的对应关系，如下：
表6
Figure PCTCN2022075346-appb-000006
需要说明的是，在NRF中注册的多个NWDAF针对同一个Analytics ID，可以支持不同的服务或者功能，具体的，不同的NWDAF针对同一个Analytics ID可以支持上述五种服务中的部分或者全部，相应地，也可以支持上述数据收集功能、模型训练功能、推理功能、数据存储功能、数据收集协调功能、分析结果开放功能、模型开放功能、训练数据或者推理数据开放功能等中的一个或者多个。
在Rel-16阶段，NRF中注册的NWDAF针对某个特定的分析标识Analytics ID仅支持分析结果开放(Nnwdaf_AnalyticsSubscription或者Nnwdaf_AnalyticsInfo)服务，也就是说，无论第一网元向NRF发送的请求信息中携带的是哪一个分析标识Analytics ID，该请求信息中携带的服务名称(Service Name)只包括分析结果开放服务，因此NRF根据该请求信息中分析标识Analytics ID所确定的注册信息中包含该分析标识Analytics ID的NWDAF只能提供分析结果开放服务，与第一网元的请求信息中实际要求提供的服务一致，即NRF根据该请求信息确定的NWDAF与第一网元实际需求的NWDAF是完全匹配的。
需要说明的是，NRF中注册的NWDAF网元信息中分析标识与服务名称处于同一层级，可以理解为分析标识与服务名称的优先级相同，两者之间不存在绑定关系或者映射关系，分析标识与服务名称之间相互独立存在。
但是在Rel-17阶段，针对同一个分析标识Analytics ID，NRF注册信息中不同的NWDAF所支持的服务可能不同，具体而言，不同的NWDAF针对同一个分析标识可以支持分析结果开放服务、模型开放服务、数据存储服务、数据收集服务和数据收集协调服务 中的一种或多种服务；此外，同一个NWDAF的注册信息中也可以包括一个或多个分析标识Analytics ID，且在该NWDAF中不同的分析标识Analytics ID对应的NWDAF所支持的服务也可能不同。
这就造成一个问题，若NRF仍然只根据第一网元发送的请求信息中携带的分析标识和所需的服务名称来确定满足第一网元预设条件的NWDAF，即只要注册信息中包括该请求信息中要求的分析标识和服务名称的NWDAF都满足第一网元的预设条件，若该NWDAF注册信息中包括多个分析标识Analytics ID，不同的分析标识对应的服务也不同，则当第一网元要求的分析标识与服务名称在该NWDAF中不对应的时候，该NWDAF无法同时满足第一网元要求的分析标识和第一网元要求提供的服务，即NRF确定的NWDAF与第一网元的实际需求的NWDAF不匹配。第一网元接收到NRF确定的NWDAF的地址信息后无法利用，既造成了资源的浪费，又无法保障第一网元的业务。
例如，在NRF的注册信息中，NWDAF#1对Analytics ID#M仅支持模型开放服务，不支持分析结果开放服务和数据存储服务，对Analytics ID#N不支持模型开放服务，但是支持分析结果开放服务和数据存储服务。假设第一网元向NRF寻找支持Analytics ID#M和分析结果开放服务的NWDAF，此时第一网元向NRF发送的请求信息中可以包括Anal ytics ID#M以及分析结果开放服务的服务名称，NRF根据该请求信息确定的NWDAF为NWDAF#1，显然NWDAF#1并不能满足第一网元的实际需求。这是因为，NWDAF#1在NRF中的注册信息中包括：NWDAF#1支持的服务名称，即分析结果开放服务、模型开放服务、数据存储服务；NWDAF#1支持的分析标识，即Analytics ID#M、Analytics ID#N。只要注册信息中包括第一网元请求信息中要求的分析标识与服务名称的NWDAF都会被NRF判断为满足第一网元的预设要求的NWDAF，NRF会将NWDAF#1的地址反馈给第一网元，但NWDAF#1实际并不符合第一网元的预设条件。
针对上述问题，本申请提出了一种通信方法，使得NRF根据第一网元的请求信息确定的NWDAF与第一网元实际所需的NWDAF能够完全匹配，既避免了资源浪费，又保障了第一网元的业务。
接下来将结合图4对本申请中的通信方法100进行介绍。
S101，NWDAF向NRF发送请求信息#a，该请求信息#a用于请求向NRF进行注册，该请求信息#a中包括分析标识与服务的对应关系。
在一种可能的实现方式中，上述请求信息#a中包括分析标识与服务的信息之间的对应关系，该分析标识用于指示该NWDAF所支持的分析类型(比如切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析等)，该服务的信息用于指示该NWDAF所支持的服务(比如模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。等)，具体的，该服务的信息包括该服务的名称。
需要说明的是，除了分析标识与服务的对应关系，该请求信息#a中还包括NWDAF其他的网元信息，比如NWDAF对应的以下信息中的一个或者多个：网元类型、地址信息、服务区域等，这里与现有技术中类似，在此不作过多赘述。
S102，NRF接收该请求信息#a，并存储NWDAF注册的网元的信息，该网元的信息中包括分析标识与服务的对应关系。
S103，NRF向NWDAF发送回复消息#a，通知NWDAF注册成功。
S104，第一网元确定对于NWDAF的预设条件(可以理解为第一网元对要请求的NWDAF对于数据分析的要求)，该预设条件中包括需要NWDAF支持的服务的信息、以及与该服务的信息对应的分析标识。
S105，第一网元向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的信息，该请求信息#b中包括第一网元的预设条件。
S106，NRF接收该请求信息#b，并根据该请求信息#b确定满足第一网元预设要求的NWDAF。
S107，NRF向第一网元发送回复消息#b，该回复消息#b中包括满足第一网元预设要求的NWDAF的信息。
在一种可能的实现方式中，上述满足第一网元预设要求的NWDAF的信息包括该NWDAF的地址信息，例如IP地址、NWDAF的标识、FQDN、URL等中的一个或者多个，下文中将以该NWDAF的地址信息为例进行说明。
在一种可能的实现方式中，上述分析标识与服务的对应关系可以具体体现为分析标识与服务的信息之间的对应关系，其中，该分析标识可用于指示分析的类型(比如切片负载分析、业务体验分析、网元负载分析、网络性能分析、终端移动性分析、终端通信性分析、终端异常行为分析、用户数据拥塞分析、服务质量参数可持续性分析等)，该服务的信息包括该服务的名称，下文中将以该服务的信息为服务的名称为例进行说明。
需要说明的是，NWDAF支持的每个服务可以对应一个或多个功能，每个功能都有对应的服务，因此在另一种可能的实现方式中，上述通信方法100中分析标识与服务的对应关系也可以替换为分析标识与功能的对应关系，通过功能与服务的对应关系可以进一步确定分析标识与服务的对应关系，类似的，上述通信方法100中分析标识与服务的对应关系还可以替换为分析标识与其他参数的对应关系，该其他参数与服务之间存在对应关系，或者还可以针对分析标识有类似的替换关系，应理解，无论是直接确定分析标识与服务的对应关系还是间接确定分析标识与服务的对应关系，只要实质上能够确定分析标识与服务的对应关系的替换方式都在本申请的保护范围之内，以分析标识与服务的对应关系为例进行说明不应对本申请造成限定。
还需要说明的是，NRF根据该请求信息#b确定满足第一网元预设条件的NWDAF包括一个或多个，对应的，NRF发送的回复消息#b中包括满足第一网元预设条件的NWDAF的地址信息也可以包括一个或多个，本申请在此不作限定。
还需要说明的是，如果NRF发送的回复信息#b中包括多个满足第一网元预设条件的NWDAF的地址信息，第一网元可以从中任意选择一个作为目标NWDAF。
接下来以NWDAF向NRF注册的网元信息中包括分析标识与服务的对应关系为例，结合图5中的具体注册参数，对本申请中的通信方法100可能的实现方式进行进一步说明。
图5中，NRF中注册的NWDAF包括NWDAF#1、NWDAF#2和NWDAF#3为例，在NWDAF#1的注册信息中，NWDAF#1针对分析标识#A能提供分析结果开放服务和数据存储服务，NWDAF#1针对分析标识#B能提供模型开放服务和数据存储服务，NWDAF#1针对分析标识#C能提供分析结果开放服务；在NWDAF#2的注册信息中，NWDAF#2针对分析标识#A能提供模型开放服务和数据存储服务；在NWDAF#3的注册 信息中，NWDAF#3针对分析标识#A能提供分析结果开放服务、模型开放服务和数据存储服务。
可能的实现方式#A
在可能的实现方式#A中，将NWDAF向NRF注册的网元信息中的分析标识与服务的对应关系分层放置，即将分析标识与服务放置在相同或者不同的层级，作为示例而非限定，该层级可分为第一层、第二层等等，在步骤S106中NRF根据上述请求信息#b确定满足第一网元预设要求的NWDAF时，会优先查找第一层的网元信息，当NRF能够根据第一层的网元信息确定出满足预设条件的NWDAF时，会停止查找并向第一网元反馈满足预设条件的NWDAF的地址信息；否则NRF会继续查找下一层(第二层)的网元信息，直到确定出满足预设条件的NWDAF为止。
类似的，还可以为分析标识和服务设置不同的优先级，在步骤S106中NRF根据上述请求信息#b确定满足第一网元预设要求的NWDAF时，会先查找优先级高的网元信息，当NRF能够根据该优先级的网元信息确定出满足预设条件的NWDAF时，会停止查找并向第一网元反馈满足预设条件的NWDAF的地址信息；否则NRF会继续查找下一优先级的网元信息，直到确定出满足预设条件的NWDAF为止。
应理解，上述对分析标识和服务分层放置或设置优先级仅作为具体的举例，在可能的实现方式#A中实际上是定义了一种NRF查找注册网元信息的顺序，本申请对具体的实现方式并不作限定，只要能够定义NRF查找注册网元信息的顺序的方式均在于本申请的保护范围内。
接下来，以分析标识与服务放置分层放置为例，进一步说明与可能的实现方式#A对应的几种可能实现的方式。
可能的实现方式#A1
在可能的实现方式#A1中，该通信方法100既能应用于Rel-17阶段以及以后可能出现的新阶段，也能与Rel-16阶段相兼容。
首先需要说明的是，第一网元向NRF请求符合其预设条件的NWDAF时，第一网元的网元类型(NF type)与第一网元向NRF发送的请求信息中的服务名称(Service Name)之间存在一定的对应关系：针对分析结果开放(Nnwdaf_AnalyticsSubscription或者Nnwdaf_AnalyticsInfo)服务，第一网元的网元类型可以为NWDAF网元或者非NWDAF网元；针对非分析结果开放(Nnwdaf_Analytics)服务，即针对模型开放服务、模型开放服务、数据收集协调服务或者数据收集服务，第一网元的网元类型只包括NWDAF网元。
在可能的实现方式#A1中，针对非分析结果开放服务(即模型开放服务、数据存储服务、数据收集协调服务、数据收集服务)，将非分析结果开放服务放置在NWDAF注册的网元信息的第一层，然后把分析标识作为服务对应的参数放置在NWDAF注册的网元信息的第二层；或者，将分析标识放置在NWDAF注册的网元信息的第一层，然后把非分析结果开放服务作为分析标识对应的参数放置在NWDAF注册的网元信息的第二层。
在可能的实现方式#A1中，针对分析结果开放服务，参考Rel-16阶段的分析标识与服务的放置方式，将分析结果开放服务以及与该服务对应的分析标识都放置在NWDAF注册的网元信息的第一层。
结合图5，表7示出了可能的实现方式#A1中NWDAF注册网元信息的一种示例。
表7
Figure PCTCN2022075346-appb-000007
对应于可能的实现方式#A1，提出了通信方法200，该通信方法200包括：
S201，NWDAF向NRF发送请求信息#a，该请求信息#a用于请求向NRF进行注册，该请求信息#a中除了包括分析标识与服务的对应关系外，还包括第一网元的网元类型信息。
在一种可能的实现方式中，NWDAF触发Nnrf接口上网元管理中网元注册请求(Nnrf_NFManagement_NFRegister_request)服务操作，向NRF发送请求信息#a，请求信息#a用于请求向NRF进行注册，该请求信息#a中包括分析标识与服务的对应关系，以及第一网元的类型与服务的对应关系。
需要说明的是，除了分析标识与服务的对应关系，该请求信息#a中还包括NWDAF其他的网元信息，比如NWDAF对应的以下信息中的一个或者多个：网元类型、地址信息、服务区域等，这里与现有技术中类似，在此不作过多赘述。
表8示出了第一网元的类型与服务一种可能的对应关系：
表8
Figure PCTCN2022075346-appb-000008
S202，NRF接收该请求信息#a，并存储NWDAF注册的网元的信息，该信息中包括分析标识与服务的对应关系(比如表7)，以及第一网元的类型与服务的对应关系(比如表8)。
S203，NRF向NWDAF发送回复信息#a，通知NWDAF注册成功。
在一种可能的实现方式中，NRF触发Nnrf接口上网元管理中网元注册响应(Nnrf_NFManagement_NFRegister_response)服务操作，向NWDAF发送回复信息#a，通知NWDAF注册成功。
S204，第一网元确定对于NWDAF的预设条件，该预设条件中包括需要NWDAF支持的服务名称、以及该服务名称对应的分析标识。
作为示例而非限定，当第一网元为PCF时，若PCF需要从NWDAF获取业务体验数据分析结果用于该业务的QoS参数调整，于是PCF首先确定了满足预设条件的NWDAF需要支持分析结果开放服务，即满足预设条件的NWDAF所支持的服务名称中需要包括分析结果开放服务的服务名称，然后再确定满足预设条件的NWDAF中，与分析结果开放服务对应的分析标识Analytics ID为业务体验Service Experience。
S205，第一网元向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息。该请求信息#b中包括第一网元的网元类型。若第一网元的类型为NWDAF网元，则该请求信息#b中还包括第一网元要求NWDAF支持的服务名称以及该服务名称对应的分析标识。
在一种可能的实现方式中，NRF触发NWDAF的Nnrf接口上网元发现请求(Nnrf_NFManagement_NFRegister_response)服务操作，向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息。该请求信息#b中包括第一网元的网元类型。若第一网元的类型为NWDAF网元，则该请求信息#b中还包括第一网元要求NWDAF支持的服务名称以及该服务名称对应的分析标识。
S206，NRF接收该请求信息#b，并根据该请求信息#b确定满足第一网元预设要求的NWDAF。
在一种可能的实现方式中，NRF接收该请求信息#b，并判断请求信息#b中第一网元的类型，若第一网元的类型为非NWDAF或者NWDAF网元，NRF在NWDAF注册的第一层网元信息中查找并确定是否存在满足预设条件的分析标识；若第一网元的类型为NWDAF，则NRF首先在NWDAF注册的第一层网元信息中查找并确定是否存在满足预设条件的服务名称(或者分析标识)，如果存在，则进一步查找NWDAF注册的第二层网元信息，确定是否存在满足预设要求的分析标识(或服务名称)。
S207，NRF向第一网元发送回复信息#b，该回复信息#b中包括满足第一网元预设要求的NWDAF的地址信息。
在一种可能的实现方式中，NRF触发Nnrf接口上网元发现请求响应(Nnrf_NFDisco very_Request Response)服务操作，向第一网元发送回复信息#b，该回复信息#b中包括满足第一网元预设要求的NWDAF的地址信息。
需要说明的是，NRF根据该请求信息#b确定满足第一网元预设条件的NWDAF包括一个或多个，对应的，NRF发送的回复信息#b中包括满足第一网元预设条件的NWDAF的地址信息也可以包括一个或多个，本申请在此不作限定。
还需要说明的是，如果NRF发送的回复信息#b中包括多个满足第一网元预设条件的NWDAF的地址信息，第一网元可以从中任意选择一个作为目标NWDAF。
在一种可能的实现方式中，通信方法200中，请求信息#a与请求信息#b中也可以包括第一网元要求NWDAF支持的服务名称以及该服务名称对应的分析标识，而不包括第一网元类型，NRF在接收该请求信息#b后不再对第一网元的类型进行判断，而是依据该请求信息#b中相互对应的分析标识与服务名称去确定满足第一网元预设要求的NWDAF。
需要说明的是，若第一网元发送给NRF的请求信息#b的预设条件中包含多个分析标识和/或多个服务名称，则通信方法200中该请求信息#b中还包括分析标识与服务名称之间的对应关系，本申请对具体的对应方式不做限定。
在上述可能的实现方式#A1中，NRF能够辅助第一网元找到符合第一网元预设条件的NWDAF，即NRF通过第一网元预设条件确定的NWDAF与第一网元实际需要的NWDAF能够完全匹配，即保障了第一网元的业务，也避免了资源浪费。
接下来，依然以分析标识与服务放置分层放置为例，进一步说明与可能的实现方式#A对应的第二种可能实现的方式。
可能的实现方式#A2
在可能的实现方式#A2中，该通信方法100可以应用于Rel-17阶段以及以后可能出现的新阶段，但与Rel-16阶段不相兼容。
在可能的实现方式#A2中，将分析标识放置在NWDAF注册的网元信息的第一层，然后把服务作为分析标识对应的参数放置在NWDAF注册的网元信息的第二层。
结合图5，表9示出了可能的实现方式#A2中NWDAF注册网元信息的一种示例。
表9
Figure PCTCN2022075346-appb-000009
对应于可能的实现方式#A2，上述通信方法100具体包括：
S101，NWDAF向NRF发送请求信息#a，该请求信息#a用于请求向NRF进行注册，该请求信息#a中包括分析标识与服务的对应关系。
在一种可能的实现方式中，NWDAF触发Nnrf接口上网元管理中网元注册请求(Nnrf_NFManagement_NFRegister_request)服务操作，向NRF发送请求信息#a，请求信息#a用于请求向NRF进行注册，该请求信息#a中包括分析标识与服务的对应关系。
在一种可能的实现方式中，请求信息#a中的分析标识与服务的对应关系包括：一个或者多个分析标识Analytics ID，以及每个分析标识支持的一种或者多种服务操作的名称。也就是说，将服务作为分析标识的参数。
作为示例而非限定，NWDAF在本地首先收集并存储了来自AF的业务体验数据以及对应的来自5GC NF的网络数据，基于业务体验数据以及对应的网络数据训练了业务体验模型，并在本地部署了该模型，相应地，该NWDAF针对业务体验Service Experience的分析标识Analytics ID就可以支持分析结果开放服务、模型开放服务以及数据存储服务，于是，NWDAF发送的请求信息#a中的分析标识与服务的对应关系具体内容为：分析标识Analytics ID＝Service Experience以及与该分析标识对应的上述三种服务，NWDAF可以将上述三种服务作为分析标识Analytics ID＝Service Experience的参数注册在NRF中。
需要说明的是，除了分析标识与服务的对应关系，该请求信息#a中还包括NWDAF其他的网元信息，比如NWDAF对应的以下信息中的一个或者多个：网元类型、地址信息、服务区域等，这里与现有技术中类似，在此不作过多赘述。
S102，NRF接收该请求信息#a，并存储NWDAF注册的网元信息，该网元信息中包括分析标识与服务的对应关系(比如表9)。
S103，NRF向NWDAF发送回复信息#a，通知NWDAF注册成功。
在一种可能的实现方式中，NRF触发Nnrf接口上网元管理中网元注册响应(Nnrf_NFManagement_NFRegister_response)服务操作，向NWDAF发送回复信息#a，通知NWDAF注册成功。
S104，第一网元确定对于NWDAF的预设条件，该预设条件中包括需要NWDAF支持的分析标识、以及该分析标识对应的服务名称。
作为示例而非限定，当第一网元为PCF时，若PCF需要从NWDAF获取业务体验数据分析结果用于该业务的QoS参数调整，于是PCF首先确定了满足预设条件的NWDAF需要支持业务体验分析，即满足预设条件的NWDAF所支持的分析标识中需要包括业务体验Service Experience的分析标识，然后再确定满足预设条件的NWDAF中，与该分析标识对应的服务名称中需要包括分析结果开放服务的服务名称。
S105，第一网元向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息，该请求信息#b中包括第一网元的预设条件，即第一网元要求NWDAF支持的分析标识以及该分析标识对应的服务名称。
在一种可能的实现方式中，NRF触发NWDAF的Nnrf接口上网元发现请求(Nnrf_NFDiscovery_Request)服务操作，向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息，该请求信息#b中包括第一网元要求NWDAF支持的分析标识以及该分析标识对应的服务名称。
S106，NRF接收该请求信息#b，并根据该请求信息#b确定满足第一网元预设要求的NWDAF。
在一种可能的实现方式中，NRF接收该请求信息#b后，首先根据请求信息#b中携带分析标识，从注册在NRF本地的第一层NWDAF的网元信息中查找并确定支持该分析标识的一个或者多个NWDAF，将其确定为支持该分析标识的第一NWDAF列表，然后根据请求信息#b中携带与该分析标识对应的服务名称，再从第一NWDAF列表中的NWDAF注册的第二层网元信息中查找并确定支持该服务的一个或者多个NWDAF，将其确定为同时支持该分析标识与该分析标识对应的服务的第二NWDAF列表。
作为示例而非限定，NRF首先根据请求信息#b中携带的业务体验分析标识，从注册在NRF本地的第一层NWDAF的网元信息中查找并确定支持业务体验分析标识的一个或者多个NWDAF，将其确定为支持该分析标识的第一NWDAF列表，第一NWDAF列表中的NWDAF都支持业务体验分析，然后根据请求信息#b中业务体验分析标识对应的分析结果开放服务，再进一步的从第一NWDAF列表中的NWDAF注册的第二层网元信息中查找并确定支持分析结果开放服务的一个或者多个NWDAF，将其确定为同时支持业务体验分析标识与该分析标识对应的分析结果开放服务的第二NWDAF列表。
S207，NRF向第一网元发送回复信息#b，该回复信息#b中包括满足第一网元预设要求的NWDAF的地址信息。
在一种可能的实现方式中，NRF触发Nnrf接口上网元发现请求响应(Nnrf_NFDisco very_Request Response)服务操作，向第一网元发送回复信息#b，该回复信息#b中包括上述第二NWDAF列表中每个NWDAF的地址信息，比如NWDAF的标识(NWDAF ID)互联网协定位址(IP address)、完全限定域名(fully qualified domain name，FQDN)、统一资源定位符(uniform resource locator URL)等信息。
需要说明的是，NRF根据该请求信息#b确定满足第一网元预设条件的NWDAF可以包括一个或多个，即第二NWDAF列表中可以包括一个或者多个符合预设条件的NWDAF，对应的，NRF发送的回复信息#b中满足第一网元预设条件的NWDAF的地址信息也可以包括一个或多个，本申请在此不作限定。
还需要说明的是，如果NRF发送的回复信息#b中包括多个满足第一网元预设条件的NWDAF的地址信息，第一网元可以从中任意选择一个NWDAF作为目标NWDAF。
需要说明的是，若第一网元发送给NRF的请求信息#b的预设条件中包含多个分析标识和/或多个服务名称，则通信方法200中该请求信息#b中还包括分析标识与服务名称之间的对应关系，本申请对具体的对应方式不做限定。
在上述可能的实现方式#A2中，NRF中存储有NWDAF所支持的分析标识以及与该分析标识对应服务名称，也即NRF中存储有NWDAF所支持的分析标识与NWDAF所支持的服务名称的对应关系，因此，NRF能够根据第一网元的预设条件中的分析标识以及与该分析标识对应的服务名称的信息，辅助第一网元找到符合第一网元预设条件的NWDAF，即NRF通过第一网元预设条件确定的NWDAF与第一网元实际需要的NWDAF能够完全匹配，即保障了第一网元的业务，也避免了资源浪费。
接下来，依然以分析标识与服务放置分层放置为例，进一步说明与可能的实现方式#A对应的第三种可能实现的方式。
可能的实现方式#A3
在可能的实现方式#A3中，该通信方法100可以应用于Rel-17阶段以及以后可能出现的新阶段，但与Rel-16阶段不相兼容。
在可能的实现方式#A3中，将服务名称放置在NWDAF注册的网元信息的第一层，然后把分析标识作为服务名称对应的参数放置在NWDAF注册的网元信息的第二层。
结合图5，表10示出了可能的实现方式#A3中NWDAF注册网元信息的一种示例。
表10
Figure PCTCN2022075346-appb-000010
对应于可能的实现方式#A3，上述通信方法100具体包括：
S101，NWDAF向NRF发送请求信息#a，该请求信息#a用于请求向NRF进行注册，该请求信息#a中包括服务与分析标识的对应关系。
在一种可能的实现方式中，NWDAF触发Nnrf接口上网元管理中网元注册请求(Nnrf_NFManagement_NFRegister_request)服务操作，向NRF发送请求信息#a，请求信息#a用于请求向NRF进行注册，该请求信息#a中包括服务名称与分析标识的对应关系。
在一种可能的实现方式中，请求信息#a中的服务名称与分析标识的对应关系包括：一个或者多个服务名称，以及每个服务名称对应的服务操作所支持的一个或者多个分析标识。也就是说，将分析标识为服务名称对应的参数。
作为示例而非限定，NWDAF在本地首先收集并存储了来自AF的业务体验数据以及对应的来自5GC NF的网络数据，基于业务体验数据以及对应的网络数据训练了业务体验模型，并在本地部署了该模型，相应地，该NWDAF可以支持分析结果开放服务、模型开放服务以及数据存储服务，于是，NWDAF发送的请求信息#a中的服务名称与分析标识的对应关系具体内容为：上述三种服务名称以及与上述三种该服务名称对应的业务体验Service Experience的分析标识，NWDAF可以将上述三种服务名称以及每个服务名称对应的Service Experience分析标识作为服务名称对应的参数注册在NRF中。
需要说明的是，除了分析标识与服务的对应关系，该请求信息#a中还包括NWDAF其他的网元信息，比如NWDAF对应的以下信息中的一个或者多个：网元类型、地址信息、服务区域等，这里与现有技术中类似，在此不作过多赘述。
S102，NRF接收该请求信息#a，并存储NWDAF注册的网元信息，该网元信息中包 括分析标识与服务的对应关系(比如表10)。
S103，NRF向NWDAF发送回复信息#a，通知NWDAF注册成功。
在一种可能的实现方式中，NRF触发Nnrf接口上网元管理中网元注册响应(Nnrf_NFManagement_NFRegister_response)服务操作，向NWDAF发送回复信息#a，通知NWDAF注册成功。
S104，第一网元确定对于NWDAF的预设条件，该预设条件中包括需要NWDAF支持的服务名称、以及与该服务名称对应的分析标识。
作为示例而非限定，当第一网元为PCF时，若PCF需要从NWDAF获取业务体验数据分析结果用于该业务的QoS参数调整，于是PCF首先确定了满足预设条件的NWDAF需要支持分析结果开放服务，即Service Name＝Nnwdaf_AnalyticsSubscription or Nnwdaf_AnalyticsInfo，然后再确定满足预设条件的NWDAF中，与该分析标识对应的分析标识中需要包括业务体验的分析标识，即Analytics ID＝Service Experience。
S105，第一网元向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息，该请求信息#b中包括第一网元的预设条件，即第一网元要求NWDAF支持的服务名称以及与该服务名称对应的分析标识。
在一种可能的实现方式中，NRF触发NWDAF的Nnrf接口上网元发现请求(Nnrf_NFDiscovery_Request)服务操作，向NRF发送请求信息#b，该请求信息#b用于请求符合第一网元预设条件的NWDAF网元的地址信息，该请求信息#b中包括第一网元要求NWDAF支持的服务名称以及与该服务名称对应的分析标识。
S106，NRF接收该请求信息#b，并根据该请求信息#b确定满足第一网元预设要求的NWDAF。
在一种可能的实现方式中，NRF接收该请求信息#b后，首先根据请求信息#b中携带服务名称，从注册在NRF本地的第一层NWDAF的网元信息中查找并确定支持该服务名称的一个或者多个NWDAF，将其确定为支持该服务名称的第一NWDAF列表，然后根据请求信息#b中携带与该服务名称对应的分析标识，再从第一NWDAF列表中的NWDAF注册的第二层网元信息中查找并确定支持该分析标识的一个或者多个NWDAF，将其确定为同时支持该服务名称与该服务名称对应的分析标识的第二NWDAF列表。
作为示例而非限定，NRF首先根据请求信息#b中携带的分析结果开放服务的服务名称(即Service Name＝Nnwdaf_AnalyticsSubscription or Nnwdaf_AnalyticsInfo)，从注册在NRF本地的第一层NWDAF的网元信息中查找并确定支持分析结果开放服务的一个或者多个NWDAF，将其确定为支持分析结果开放服务的第一NWDAF列表，然后根据请求信息#b中分析结果开放服务的服务名称对应的业务体验的分析标识(即Analytics ID＝Ser vice Experience)，再进一步的从第一NWDAF列表中的NWDAF注册的第二层网元信息中查找并确定支持业务体验分析标识的一个或者多个NWDAF，将其确定为同时支持分析结果开放服务和该分析结果开放服务对应的业务体验分析标识的第二NWDAF列表。
S207，NRF向第一网元发送回复信息#b，该回复信息#b中包括满足第一网元预设要求的NWDAF的地址信息。
在一种可能的实现方式中，NRF触发Nnrf接口上网元发现请求响应(Nnrf_NFDisco very_Request Response)服务操作，向第一网元发送回复信息#b，该回复信息#b中包括上 述第二NWDAF列表中每个NWDAF的地址信息，比如NWDAF的标识(NWDAF ID)、互联网协定位址(IP address)、完全限定域名(fully qualified domain name，FQDN)、统一资源定位符(uniform resource locator URL)等信息。
需要说明的是，NRF根据该请求信息#b确定满足第一网元预设条件的NWDAF可以包括一个或多个，即第二NWDAF列表中可以包括一个或者多个符合预设条件的NWDAF，对应的，NRF发送的回复信息#b中满足第一网元预设条件的NWDAF的地址信息也可以包括一个或多个，本申请在此不作限定。
还需要说明的是，如果NRF发送的回复信息#b中包括多个满足第一网元预设条件的NWDAF的地址信息，第一网元可以从中任意选择一个NWDAF作为目标NWDAF。
需要说明的是，若第一网元发送给NRF的请求信息#b的预设条件中包含多个分析标识和/或多个服务名称，则通信方法200中该请求信息#b中还包括分析标识与服务名称之间的对应关系，本申请对具体的对应方式不做限定。
在上述可能的实现方式#A3中，NRF中存储有NWDAF所支持的服务名称以及与该服务名称对应的分析标识，也即NRF中存储有NWDAF所支持的服务名称与NWDAF所支持的分析标识的对应关系，因此，NRF能够根据第一网元的预设条件中的服务名称以及与该服务名称对应的分析标识，辅助第一网元找到符合第一网元预设条件的NWDAF，该NWDAF可以同时满足第一网元预设条件中的服务名称和该服务名称对应的分析标识，即NRF通过第一网元预设条件确定的NWDAF与第一网元实际需要的NWDAF能够完全匹配，即保障了第一网元的业务，也避免了资源浪费。
接下来以NWDAF向NRF注册的网元信息中包括分析标识与服务的对应关系为例，结合图5中的具体注册参数，对本申请中的通信方法100可能的第二种实现方式进行进一步说明。
可能的实现方式#B
在可能的实现方式#B中，NRF中注册的NWDAF网元信息包括分析标识与服务名称的对应关系，该分析标识与服务名称的对应关系包括：每个分析标识与该分析标识对应的每个服务名称的对应关系，或者，每个服务名称与该服务名称对应的每个分析标识的对应关系，可以理解为，分析标识与服务名称的对应关系的存储形式不再以一个对应多个的方式存储，而是以一个对一个的方式存储。
结合图5，表11示出了可能的实现方式#B中NWDAF注册网元信息的一种示例。
表11
Figure PCTCN2022075346-appb-000011
需要说明的是，可以将上述对应关系中的服务名称作为第一层，即NRF会优先根据第一服务名称去确定候选的数据分析网元，再根据该第一服务名称与第一分析标识的对应关系去确定该第一服务名称对应的分析标识为该第一分析标识的目标数据分析网元；也可以将上述对应关系中的分析标识作为第一层，即NRF会优先根据第一标识去确定候选的数据分析网元，再根据该第一服务名称与第一分析标识的对应关系去确定该第一分析对应的服务名称为该第一服务名称的目标数据分析网元，本申请在此不作限定。
与可能的实现方式#B对应的通信方法可以参考可能的实现方式#A2与可能的实现方式#A3中对应的通信方法100的描述，在此就不作过多赘述。
本申请提出了一种通信方法，使得NRF能够通过服务(或者功能)与分析标识的对应关系找到与第一网元实际需求相匹配的NWDAF，让第一网元能够成功寻址到符合其预设要求的NWDAF。
在本申请提供的通信方法中，NWDAF在向NRF注册时，会明确指示该NWDAF可以支持的分析标识、可以支持的服务、以及可以支持的分析标识与可以支持的服务之间的对应关系，第一网元在向NRF请求NWDAF时，也会明确指示满足第一网元预设条件的NWDAF需要支持的分析标识、需要支持的服务、以及需要支持的分析标识与需要支持的服务之间的对应关系，NRF根据NWDAF注册在本地的网元信息中分析标识与服务名称的对应方式来确定执行NWDAF本地检索的步骤，并最终确定出满足第一网元预设条件的NWDAF，向第一网元反馈该NWDAF的地址信息。
应理解，本申请实施例中的具体的例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。
还应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
还应理解，在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据 其内在的逻辑关系可以组合形成新的实施例。
还需要说明的是，本申请实施例中，“预先设定”、“预先配置”等可以通过在设备(例如，网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定，例如本申请实施例中预设的规则、预设的常数等。
可以理解的是，本申请上述实施例中，由通信设备实现的方法，也可以由可配置于通信设备内部的部件(例如芯片或者电路)实现。
以上，结合图4至图5详细说明了本申请实施例提供的通信方法。上述通信方法主要从网元之间交互的角度进行了介绍。可以理解的是，各个网元，为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该可以意识到，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，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，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。
以下，结合图6至图8对本申请实施例提供的通信装置进行详细说明。应理解，装置实施例的描述与方法实施例的描述相互对应，因此，未详细描述的内容可以参见上文方法实施例，为了简洁，部分内容不再赘述。
本申请实施例可以根据上述方法示例对发射端设备或者接收端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，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。下面以采用对应各个功能划分各个功能模块为例进行说明。
图6给出了一种通信装置200的结构示意图。该通信装置包括接收单元210、处理单元220以及发送单元230，该通信装置200可以是上文方法实施例中的网络存储功能设备或者第一网络设备(即服务请求设备)，也可以是用于实现上文方法实施例中网络存储功能设备或者第一网络设备的功能的芯片。
应理解，该通信装置200可对应于根据本申请实施例的通信方法100中的网络存储功能设备或者第一网络设备，该通信装置100可以包括用于执行图4中的网络存储功能设备或者第一网络设备执行的方法的单元。并且，该通信装置200中的各单元和上述其他操作和/或功能实现了图4中的通信方法100的相应流程。
在一种可能的设计中，该通信装置200可实现图4所示的实施例中网络存储功能网元所具备的任意功能。
例如，接收单元210，用于从服务请求网元接收请求消息，该请求消息用于请求目标数据分析网元的信息，该请求消息包括第一分析标识和第一服务的信息，该目标数据分析网元支持该第一分析标识对应的分析类型和该第一服务。
接收单元210，还用于接收该目标数据分析网元发送的该目标数据分析网元对应的该第一分析标识与第二服务之间的关联信息。
接收单元210，还用于接收该目标数据分析网元发送该目标数据分析网元对应的第二 分析标识与该第一服务之间的关联信息。
接收单元210，还用于接收该服务请求网元的网元类型信息。
接收单元210，还用于接收指示该第一分析标识与该第一服务信息的关联关系的信息。
在一种可能的实现方式中，该第二服务包括多个服务，该第一分析标识支持该多个服务，该多个服务包括该第一服务。
在一种可能的实现方式中，该第二分析标识包括多个分析标识，该第一服务支持该多个分析标识，该多个分析标识包括该第一分析标识。
处理单元220，用于根据该第一分析标识、该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息确定该目标数据分析网元。
在一种可能的实现方式中，处理单元220用于根据该第一分析标识确定候选的数据分析网元，该候选的数据分析网元支持该第一分析标识对应的分析类型；再根据该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
在一种可能的实现方式中，处理单元220用于根据该第一服务的信息确定候选的数据分析网元，该候选的数据分析网元支持该第一服务；再根据该第一分析标识和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
在一种可能的实现方式中，处理单元220用于根据该服务请求网元的网元类型信息确定该服务请求网元为数据分析网元；再根据该第一分析标识确定候选的数据分析网元，该候选的数据分析网元支持该第一分析标识对应的分析类型；再根据该第一服务的信息和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
在一种可能的实现方式中，处理单元220用于根据该服务请求网元的网元类型信息确定该服务请求网元为数据分析网元；再根据该第一服务的信息确定候选的数据分析网元，该候选的数据分析网元支持该第一服务；再根据该第一分析标识和该目标数据分析网元对应的该第一分析标识与该第一服务之间的关联信息，从该候选的数据分析网元中确定该目标数据分析网元。
发送单元230，用于向该服务请求网元发送该目标数据分析网元的信息。
发送单元230，还用于发送服务请求网元的网元类型信息，该服务请求网元为请求该目标数据分析网元的网元。
发送单元230，还用于发送指示该第一分析标识与该第一服务信息的关联关系的信息。
在另一种可能的设计中，该通信装置200可实现图4所示的实施例中第一网络网元(即服务请求网元)所具备的任意功能。
例如，处理单元220，用于确定请求的目标数据分析网元需要满足的预设条件，即用于确定目标数据分析网元对应的第一分析标识与第一服务的信息。
在一种可能的实现方式中，用于确定请求的目标数据分析网元需要满足的预设条件，当预设条件中包括不止一个第一分析标识和不止一个第一服务的信息时，处理单元220还用于确定多个第一分析标识与说个第一服务的信息之间的关联信息(即对应关系)。
发送单元230，用于向网络存储功能网元用于发送请求消息，该请求消息用于请求目 标数据分析网元的信息，该请求消息包括第一分析标识和第一服务的信息(即预设条件)，该目标数据分析网元支持该第一分析标识对应的分析类型和该第一服务。
接收单元210，用于接收该目标数据分析网元的信息。
在一种可能的实现方式中，上述第一服务包括以下服务的至少一种：模型请求、模型订阅、数据存储请求、数据收集协调；该第二服务包括以下服务的至少一种：模型请求、模型订阅、数据存储请求、数据收集协调。
在一种可能的实现方式中，上述目标数据分析网元的信息包括该目标数据分析网元的地址信息，该目标数据分析网元的地址信息包括以下信息中的一个或多个：数据分析网元的标识、互联网协定位址、完全限定域名、统一资源定位符。
图7给出了一种通信装置300的结构示意图。该通信装置包括发送单元310、以及接收单元320，该通信装置300可以是上文方法实施例中的数据分析网元。也可以是用于实现上文方法实施例中数据分析网元功能的芯片。
在一种可能的设计中，该通信装置300可实现图4中所示的实施例中数据分析网元所具备的任意功能。
例如，发送单元310，用于向网络存储功能网元发送注册请求信息，该注册请求信息包括目标数据分析网元对应的第一分析标识与第一服务之间的关联信息。
接收单元320，用于接收网络存储功能网元发送的注册响应信息。
图8是根据本申请实施例提供的通信网元400的结构框图。图8所示的通信网元400包括：处理器410、存储器420和通信接口430。该处理器410与存储器耦合，用于执行存储器中存储的指令，以控制通信接口430发送信号和/或接收信号。
应理解，上述处理器410和存储器420可以合成一个处理装置，处理器410用于执行存储器420中存储的程序代码来实现上述功能。具体实现时，该存储器420也可以集成在处理器410中，或者独立于处理器410。
在一种可能的设计中，该通信网元400可以是上文方法实施例中的网络存储功能网元或者第一网络网元(即服务请求网元)，也可以是用于实现上文方法实施例中网络存储功能网元或者第一网络网元的功能的芯片。
具体地，该通信网元400可对应于根据本申请实施例的方法100中的网络存储功能网元或者第一网络网元，该通信网元400可以包括用于执行图4中的网络存储功能网元或者第一网络网元执行的方法的单元。并且，该通信网元400中的各单元和上述其他操作和/或功能分别为了实现方法100的相应流程。应理解，各单元执行上述相应步骤的具体过程在上述方法实施例中已经详细说明，为了简洁，在此不再赘述。
当该通信网元400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。本申请实施例还提供了一种处理装置，包括处理器和接口。该处理器可用于执行上述方法实施例中的方法。
应理解，上述处理装置可以是一个芯片。例如，该处理装置可以是现场可编程门阵列(field programmable gate array，FPGA)，可以是专用集成芯片(application specific integrated circuit，ASIC)，还可以是***芯片(system on chip，SoC)，还可以是中央处理器(central processor unit，CPU)，还可以是网络处理器(network processor，NP)，还可以是数字信 号处理电路(digital signal processor，DSP)，还可以是微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片。
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。
应注意，本申请实施例中的处理器可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例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。上述的处理器可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。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译码处理器执行完成，或者用译码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。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synch-link DRAM，SLDRAM)和直接内存总线随机存取存储器(direct ram-bus RAM，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
根据本申请实施例提供的方法，本申请还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，使得该计算机执行图4所示实施例中扩展的任意一个实施例的方法。
根据本申请实施例提供的方法，本申请还提供一种计算机可读介质，该计算机可读介质存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行图4所示实施例中的方法。
根据本申请实施例提供的方法，本申请还提供一种***，其包括前述的装置或网元。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。 当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机指令时，全部或部分地产生按照本申请实施例该的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储网元。该可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disc，SSD))等。
上述各个装置实施例中网络侧网元与终端网元和方法实施例中的网络侧网元或终端网元对应，由相应的模块或单元执行相应的步骤，例如通信单元(通信接口)执行方法实施例中接收或发送的步骤，除发送、接收外的其它步骤可以由处理单元(处理器)执行。具体单元的功能可以参考相应的方法实施例。其中，处理器可以为一个或多个。
在本说明书中使用的术语“部件”、“模块”、“***”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算网元上运行的应用和计算网元都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在两个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地***、分布式***和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它***交互的互联网)的信号通过本地和/或远程进程来通信。
还应理解，本文中术语“和/或”，仅仅是一种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这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
还应理解，本申请实施例中引入编号“第一”、“第二”、“#a”、“#b”、“#1”、“#2”等只是为了区分不同的对象，比如，区分不同的“数据分析网元”，或，“分析标识”，或，“服务”，对具体对象以及不同对象间的对应关系的理解应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
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***、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***、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，该单元的划分，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***，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。
该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。
该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网元(可以是个人计算机，服务器，或者网络网元等)执行本申请各个实施例该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该权利要求的保护范围为准。

Claims (25)

  1. 一种通信方法，其特征在于，包括：
    从服务请求网元接收请求消息，所述请求消息用于请求目标数据分析网元的信息，所述请求消息包括第一分析标识和第一服务的信息，所述目标数据分析网元支持所述第一分析标识对应的分析类型和所述第一服务；
    根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元；
    向所述服务请求网元发送所述目标数据分析网元的信息。
  2. 根据权利要求1所述的通信方法，其特征在于，所述方法还包括：
    接收所述目标数据分析网元发送的所述目标数据分析网元对应的所述第一分析标识与第二服务之间的关联信息。
  3. 根据权利要求2所述的通信方法，其特征在于，所述第二服务包括多个服务，所述第一分析标识支持所述多个服务，所述多个服务包括所述第一服务。
  4. 根据权利要求3所述的通信方法，其特征在于，根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元，包括:
    根据所述第一分析标识确定候选的数据分析网元，所述候选的数据分析网元支持所述第一分析标识对应的分析类型；
    根据所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息，从所述候选的数据分析网元中确定所述目标数据分析网元。
  5. 根据权利要求1所述的通信方法，其特征在于，所述方法还包括：
    接收所述目标数据分析网元发送的所述目标数据分析网元对应的第二分析标识与所述第一服务之间的关联信息。
  6. 根据权利要求5所述的通信方法，其特征在于，所述第二分析标识包括多个分析标识，所述第一服务支持所述多个分析标识，所述多个分析标识包括所述第一分析标识。
  7. 根据权利要求6所述的通信方法，其特征在于，根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元，包括:
    根据所述第一服务的信息确定候选的数据分析网元，所述候选的数据分析网元支持所述第一服务；
    根据所述第一分析标识和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息，从所述候选的数据分析网元中确定所述目标数据分析网元。
  8. 根据权利要求1至7中任一项所述的通信方法，其特征在于，所述请求信息还包括所述服务请求网元的网元类型信息，
    在根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元之前，所述方法还包括：
    根据所述服务请求网元的网元类型信息确定所述服务请求网元为数据分析网元。
  9. 根据权利要求1至8中任一项所述的通信方法，其特征在于，所述请求信息还包括用于指示所述第一分析标识与所述第一服务信息的关联关系的信息。
  10. 根据权利要求1至9中任一项所述的通信方法，其特征在于，所述第一服务包括以下服务的至少一种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
  11. 根据权利要求1至10中任一项所述的通信方法，其特征在于，所述目标数据分析网元的信息包括所述目标数据分析网元的地址信息，所述目标数据分析网元的地址信息包括以下信息中的一个或多个：
    数据分析网元的标识、互联网协定位址、完全限定域名、统一资源定位符。
  12. 一种通信方法，其特征在于，包括：
    服务请求网元向网络存储功能网元发送请求消息，所述请求消息用于请求目标数据分析网元的信息，所述请求消息包括第一分析标识和第一服务的信息，所述目标数据分析网元支持所述第一分析标识对应的分析类型和所述第一服务；
    所述服务请求网元接收来自所述网络存储功能网元的所述目标数据分析网元的信息。
  13. 一种通信装置，其特征在于，包括：
    接收单元，用于从服务请求网元接收请求消息，所述请求消息用于请求目标数据分析网元的信息，所述请求消息包括第一分析标识和第一服务的信息，所述目标数据分析网元支持所述第一分析标识对应的分析类型和所述第一服务；
    处理单元，用于根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元；
    发送单元，用于向所述服务请求网元发送所述目标数据分析网元的信息。
  14. 根据权利要求13所述的通信装置，其特征在于，
    所述接收单元还用于接收所述目标数据分析网元发送的所述目标数据分析网元对应的所述第一分析标识与第二服务之间的关联信息。
  15. 根据权利要求14所述的通信装置，其特征在于，所述第二服务包括多个服务，所述第一分析标识支持所述多个服务，所述多个服务包括所述第一服务，以及
    所述处理单元根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元，包括:
    所述处理单元根据所述第一分析标识确定候选的数据分析网元，所述候选的数据分析网元支持所述第一分析标识对应的分析类型；
    所述处理单元根据所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息，从所述候选的数据分析网元中确定所述目标数据分析网元。
  16. 根据权利要求13所述的通信装置，其特征在于，所述接收单元还用于接收所述目标数据分析网元发送的所述目标数据分析网元对应的第二分析标识与所述第一服务之间的关联信息。
  17. 根据权利要求16所述的通信装置，其特征在于，所述第二分析标识包括多个分 析标识，所述第一服务支持所述多个分析标识，所述多个分析标识包括所述第一分析标识，以及
    所述接收单元根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元，包括:
    所述接收单元根据所述第一服务的信息确定候选的数据分析网元，所述候选的数据分析网元支持所述第一服务；
    所述接收单元根据所述第一分析标识和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息，从所述候选的数据分析网元中确定所述目标数据分析网元。
  18. 根据权利要求13至17中任一项所述的通信装置，其特征在于，所述接收单元接收的所述请求信息还包括所述服务请求网元的网元类型信息，
    在所述处理单元根据所述第一分析标识、所述第一服务的信息和所述目标数据分析网元对应的所述第一分析标识与所述第一服务之间的关联信息确定所述目标数据分析网元之前，所述处理单元还用于根据所述服务请求网元的网元类型信息确定所述服务请求网元为数据分析网元。
  19. 根据权利要求13至18中任一项所述的通信装置，其特征在于，所述接收单元还用于接收指示所述第一分析标识与所述第一服务信息的关联关系的信息。
  20. 根据权利要求13至19中任一项所述的通信装置，其特征在于，所述第一服务包括以下服务的至少一种：模型请求服务、模型订阅服务、数据存储请求服务、数据收集协调服务。
  21. 一种通信装置，其特征在于，包括：
    发送单元，用于服务请求网元向网络存储功能网元发送请求消息，所述请求消息用于请求目标数据分析网元的信息，所述请求消息包括第一分析标识和第一服务的信息，所述目标数据分析网元支持所述第一分析标识对应的分析类型和所述第一服务；
    接收单元，用于所述服务请求网元接收来自所述网络存储功能网元的所述目标数据分析网元的信息。
  22. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，当所述计算机程序运行时，
    使得装置执行如权利要求1至11中任意一项所述的方法，或者，
    使得装置执行如权利要求12所述的方法。
  23. 一种芯片***，其特征在于，包括：处理器，用于从存储器中调用并运行计算机程序，
    使得安装有所述芯片***的通信装置执行如权利要求1至11中任意一项所述的方法；或者，
    使得安装有所述芯片***的通信装置执行如权利要求12所述的方法。
  24. 一种通信装置，其特征在于，包括：
    存储器，用于存储计算机程序；
    处理器，用于执行所述存储器中存储的计算机程序，以使得所述通信装置执行权利要 求1至11中任一项所述的通信方法，或者，使得所述通信装置执行权利要求12所述的通信方法。
  25. 一种通信***，包括：
    网络存储功能网元，用于执行如权利要求1至11中任意一项所述的方法；以及
    服务请求网元，用于向所述网络存储功能网元发送请求消息，所述请求消息用于请求目标数据分析网元的信息，所述请求消息包括第一分析标识和第一服务的信息，所述目标数据分析网元支持所述第一分析标识对应的分析类型和所述第一服务。
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