Abstract: In embodiments of this disclosure, a data obtaining network element obtains authorization information of the user, where the authorization information includes first indication information. The first indication information indicates whether related data of the user is allowed to be obtained. The related data of the user includes data on an access network corresponding to the user and/or data on a core network corresponding to the user. The data obtaining network element sends a first request to a data providing network element when the first indication information indicates that the user allows obtaining the related data of the user, where the first request is used to obtain the related data of the user.

Abstract: The present disclosure relates to methods and apparatus for determining device information. In one example method, an inference device sends a first request to a service discovery entity. The first request is used to request information about one or more training devices, and the first request includes an algorithm type or an algorithm identifier of a first model requested by the inference device. The inference device receives the information about the one or more training devices from the service discovery entity. The information about the one or more training devices includes capability information. The inference device determines a first training device from the information about the one or more training devices based on a preset condition.

Abstract: Embodiments of this application provide a session management method, an interworking method between different systems, and a network apparatus. The session management method includes: when establishing a guaranteed bit rate (GBR) flow of a terminal device in a first communications system, determining, by a session management network element in the first communications system, that the GBR flow is a GBR flow required for handing over the terminal device from the first communications system to a second communications system; and establishing, by the session management network element for the GBR flow, a session context corresponding to the second communications system. The methods and the network apparatus are used to resolve a technical problem of resource waste existing in a handover method in the prior art.

Abstract: This application provides a user plane data obtaining method. The method includes: A first network element sends a first request message to a session management function network element, where the first request message is used to indicate the session management function network element to request a user plane function network element to provide user plane data. The first network element obtains the user plane data from the user plane function network element.

Abstract: This application discloses a network handover method and a network device. The method includes: receiving, by a first access network device, first session management information from a session management network element, where the first session management information is for requesting to set up a user plane tunnel for a voice service of a terminal device; and sending, by the first access network device, a handover request to a first mobility management network element based on the first session management information and a first condition, where the handover request is for handing over the terminal device from a first network to a second network, and the first condition includes that the voice service cannot be performed in the first network. This application is applicable to the field of communication technologies.

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose a service setup method and a device, to resolve a problem that a service cannot be normally executed. The method includes: receiving, by an access network device, a first setup request; sending a first setup response to a first core network device or a first service application server, where the first setup response is used to indicate that the access network device accepts the first setup request; when radio channel quality of a first cell of a first network in which UE is located does not satisfy a service requirement of a first service carried in the first setup request, handing over the UE to a second cell of the first network, or handing over the UE to a third cell of a second network.

Abstract: Embodiments of this application relate to a policy determining method and a communications apparatus. The method includes: obtaining, by a policy control network element, policy information from a data analytics network element; and determining, by the policy control network element, an execution policy of a service based on the policy information. In the policy determining method in the embodiments of this application, dynamic adjustment and refined management on the execution policy can be implemented.

Abstract: Embodiments of this application provide a terminal information processing method for determining exception information of a terminal. The method includes: obtaining, by a data analytics network element, data of a first terminal on an application function network element, where the data includes exception information of the first terminal; obtaining, by the data analytics network element, first terminal information of the first terminal on one or more network elements; and determining, by the data analytics network element, exception information of a second terminal based on the exception information of the first terminal and the first terminal information.

Abstract: Embodiments of this application relate to the field of communication technologies, and in particular, to a roaming data processing method and apparatus, and a system. The method is used to effectively collect data of a terminal in a roaming scenario. The method includes a first data analytics network element receiving, from a visited first network element, data of a terminal on the first network element, where the data includes first information and a first identifier, the first information is used to indicate that the terminal is roaming, and the first information includes any one or more of the following information corresponding to the terminal: a home PLMN identifier, a visited PLMN identifier, home area information, and visited area information.

Abstract: This disclosure provides a service communication method and a device, and relates to the field of communications technologies. A solution carried out by access network device is: receiving, from a core network device, a bearer setup request message for requesting to set up a bearer for a service, where the bearer setup request message carries a service requirement of the service; setting up the bearer for the service; sending a bearer setup response message to the core network device, where the bearer setup response message is used to notify the core network device that the access network device has set up the bearer for the service; and sending, a bearer deletion request message to the core network device when the access network device determines that radio channel quality provided by the access network device does not meet the service requirement.

Abstract: This application provides a user plane path selection method and an apparatus. The method includes: A first network element determines, based on at least one service type corresponding to a terminal device, service experience analytics data corresponding to the at least one service type, and then selects one or more user plane paths for a session of the terminal device based on the service experience analytics data. This enables a user plane path to be associated with a service, helps select a more appropriate user plane path for the terminal device, and can improve communication efficiency.

Abstract: A method includes obtaining, by a data analytics device, data of a terminal on an access device and data of the terminal on an access and mobility management function device, where the data of the terminal on the access device includes a first identifier, and the access device is an access device, the data of the terminal on the access and mobility management function device includes the first identifier, and the first identifier includes an identifier assigned by the access device to the terminal, associating, by the data analytics device, the data of the terminal on the access device with the data of the terminal on the access and mobility management function device based on the first identifier.

Abstract: A resource scheduling method for a network slice is provided, where a slice management network element sends a request to a data analysis network element. The request includes service experience requirement information of a first network slice. The slice management network element receives a response sent by the data analysis network element. The response includes information about a first area and/or information about a first time that are/is of the first network slice and that correspond/corresponds to the service experience requirement information. The slice management network element sends information about a second area and/or information about a second time to a network device based on the information about the first area and/or the information about the first time. The network device schedules a resource for the first network slice based on the information about the second area and/or the information about the second time.

Abstract: Embodiments of this application relate to a transfer policy determining method. The method includes: a policy control network element receives first information of a network in a first network area from a slice management and control network element, where the first information includes at least one of load information of the network in a first time interval and load information of at least one network slice in the first time interval, and the network includes the at least one network slice. The policy control network element determines, based on the first information, a service data transfer policy of a terminal located in the first network area.

Abstract: Embodiments of this application provide a user access control method. The method performed by a first network element includes: sending a first request including at least one of first indication information and second indication information to a second network element, where the first indication information indicates to report first information of at least one network slice to the first network element, and the second indication information indicates that the first network slice is a newly established network slice, a network slice on which a drive test is being performed, or a network slice for which no service level agreement is signed; receiving the first information of the at least one network slice from the second network element; and controlling user access to the first network slice based on a relationship between quality and a quality requirement of the at least one network slice.

Abstract: A method includes obtaining, by a data analytics network element, data of a terminal on an access network element and data of the terminal on an access and mobility management function network element, where the data of the terminal on the access network element includes a first identifier, and the access network element is an access network element, the data of the terminal on the access and mobility management function network element includes the first identifier, and the first identifier includes an identifier assigned by the access network element to the terminal, associating, by the data analytics network element, the data of the terminal on the access network element with the data of the terminal on the access and mobility management function network element based on the first identifier.

Abstract: A session management method, an access management function device, and a session management device, where the method is carried out by an access and mobility management network element and includes: obtaining first subscription data of a terminal in a first communications network and second subscription data of the terminal in a second communications network, where the first subscription data includes a data network name (DNN), and the second subscription data includes an access point name (APN) corresponding to the DNN; allocating a bearer identifier to a bearer in a packet data network (PDN) connection corresponding to the APN; receiving a flow identifier that is of a flow in a protocol data unit (PDU) session corresponding to the DNN and that is sent by a session management network element; and sending the bearer identifier and the flow identifier to the terminal.

Abstract: Embodiments of this application provide a slice information processing method and apparatus to preferentially allocate a network slice resource to a slice for which a slice service level agreement SLA has been signed. An example solution includes: An access network device determines that a slice service level agreement (SLA) has been signed for a first slice and that no slice SLA has been signed for a second slice. The access network device prioritizes a user behavior action of the first slice, or deprioritizes a user behavior action of the second slice.

Abstract: A communication method includes: sending, by a policy control network element, first query information to a data analytics network element, where the first query information is used to obtain service quality information; and receiving, by the policy control network element, first response information sent by the data analytics network element, where the first response information includes the quality information that is of the service and that is requested using the first query information.

Abstract: The present disclosure relates to slice information processing methods. One example method includes sending, by a management and control function network element, a first request to a data analytics function network element, where the first request requests first information of a slice network including at least one slice, and the first request includes identity information of the at least one slice, and receiving, by the management and control function network element, a first response from the data analytics function network element, where the first response includes the first information, and the first information is used for at least one of user control or application control of each slice of the at least one slice.