Abstract: A mobility management processing method includes: receiving, by an SMF network element, a data notification message that includes a PDU session identifier and that is sent by a UPF network element, and determining, based on the PDU session identifier, a session and SSC mode corresponding to the PDU session identifier and/or a service area of the UPF network element, where the UPF network element is a network element that establishes a PDU session corresponding to the PDU session identifier; determining a paging area based on the SSC mode and/or the service area of the UPF network element; and sending a first message including the paging area to an AMF network element, where the first message is used to trigger the AMF network element to page, in the paging area, a terminal that establishes the PDU session by using the UPF network element.

Abstract: A data transmission method, a terminal, and an access-network network element are disclosed. An interface is disposed on a policy client of UE and an operating system or an application layer of the UE. The interface is used to provide the operating system or the application layer with a policy related to the operating system or the application layer, and collect, from the operating system or the application layer, information required for a report. In this way, a dedicated transport channel is implemented by a bottom layer of the UE, reports and policies are transmitted on the dedicated transport channel, and during implementation, a protocol is not coupled with the application layer or the operating system, so that the system is simple to implement.

Abstract: This application provides a network handover method and an apparatus. Before a terminal device is handed over from a first network to a second network, the terminal device sets up a first tunnel to a first interworking device, where a communication identifier, of the terminal device, in the first tunnel is a first identifier the first identifier is an identifier used in the first network by the terminal device, and the first interworking device is an interface device in the first network and oriented toward a network other than the first network. After the terminal device is handed over from the first network to the second network, the terminal device sends an update request to the first interworking device, where the update request request to update the communication identifier to a second identifier, and the second identifier is an identifier used in the second network by the terminal device.

Abstract: Embodiments of the present invention disclose a network access authorization method, a related device, and a system. The method includes: when accessing a home network from an unlicensed spectrum access node, sending, by UE, a request message to the home network; performing, by a control plane network element of the home network based on access information and subscription data of the UE, access authorization for the UE that accesses the home network from the unlicensed spectrum access node, that is, determining whether to allow the UE to access the home network from the unlicensed spectrum access node; and sending an authorization result to the UE.

Abstract: This application provides a service data flow sending method and apparatus. The method includes: receiving, by a data sending filter of user equipment (UE), a to-be-sent service data flow; obtaining, by the data sending filter, service domain name information corresponding to the to-be-sent service data flow; obtaining, by the data sending filter based on the service domain name information, a data sending pipeline corresponding to the to-be-sent service data flow; and sending, by the data sending filter, the to-be-sent service data flow by using the data sending pipeline. According to the service data flow sending method and apparatus in this application, a sending pipeline of a service data flow is determined in a relatively simple manner, thereby improving service data flow sending efficiency.

Abstract: System and method embodiments are provided for accessing a wireless network. The embodiments enable establishing and releasing session resources in a wireless local area network (WLAN) corresponding to packet data network (PDN) connections in a 3 GPP enhanced packet core (EPC). In an embodiment, a method in a network component for establishing a control channel with a user equipment (UE) includes setting up, by the network component, a link layer channel, sending, by the network component, an identifier of the link layer channel to the UE; and communicating, by the network component, with the UE over the link layer channel using a WLAN control protocol (WLCP), wherein the WLAN comprises a trusted WLAN Access Network (TWAN).

Abstract: The embodiments of the application disclose a mobile handover method. The method includes: a first network device receives first information, and learns that a first terminal device is handed over to a target access network device. The first network device sends second information to a second network device, and the second network device determines, based on the second information, whether to reselect a target user plane function device for the first terminal device; and/or the first network device sends third information to a third network device, and the third network device determines, based on the third information, whether to reselect a target application server for the first terminal device. If the target user plane function device and/or the target application server need/needs to be reselected, a user plane function device and/or an application server need/needs to be handed over in a timely manner.

Abstract: An unmanned aerial vehicle supervision method is provided. The method includes: An access network device receives a second broadcast request from a core network element, where the second broadcast request includes third management and control information and fourth management and control information for managing and controlling an unmanned aerial vehicle, and the fourth management and control information includes second area information; the access network device determines, based on the second area information, a target area for broadcasting, and broadcasts the third management and control information to the unmanned aerial vehicle in the target area, where the third management and control information is used to indicate the unmanned aerial vehicle to perform a corresponding operation.

Abstract: Embodiments of this application provide a network congestion control method, a device, and a system, to dynamically control camping or handover of a user based on a user type, a service type, and a user location, thereby controlling congestion. A network device dynamically configures a grouped RFSP of a user based on information such as access network user plane congestion information without a need to modify subscription information of UE, selects, based on a user type and a service type, different networks/frequency bands/cells to control camping or handover, and instructs, by identifying a cell location, the user to select a frequency, to control congestion or the like.

Abstract: This application provides example methods and example apparatuses for sending multicast data. One example method includes establishing, by a core network user plane network element, a plurality of data connections to a terminal. The core network user plane network element can then determine a first data connection, where the plurality of data connections include the first data connection. The core network user plane network element can then receive multicast data sent to the terminal. The core network user plane network element can then send the multicast data to an access network element through the first data connection.

Abstract: Embodiments of the present application relate to the communications field, and provide a network interworking method, network element, and system, to improve efficiency of interworking between a first network and a second network. The method includes: after learning that the first network requests to connect to the second network, a network interworking configuration network element sends, to each network element in a first network element set, an identifier of a network element that is in a second network element set and that is connected to the network element in the first network element set, so that each network element in the first network element set performs network interworking with the network element that is in the second network element set and that is connected to the network element in the first network element set. The present disclosure is used for network interworking.

Abstract: Embodiments of the present application disclose a method for accessing a local network, and a related device, so that a user equipment can simultaneously access an operator network and a local network. The method in the embodiments of the present application includes: receiving, by an MME, an access request of user equipment UE that is sent by an base station eNB, where the access request carries access information of the UE; determining, according to the access information of the UE, a first local gateway corresponding to the UE; and establishing, for the UE, a user plane bearer that is from the eNB to a gateway C-GW of a core network and that includes the first local gateway used as an intermediate node.

Abstract: This application provides a method for identifying a terminal device and a communications apparatus. A core network element obtains classification information for classifying a terminal device, and then determines, based on the classification information and a parameter of a first terminal device, a type of the first terminal device, to identify the first terminal device. In this process, the core network element identifies the first terminal device in a supervision area by using the classification information and the parameter of the first terminal device, to identify a terminal device that is not registered in a supervision system, thereby improving security of the terminal device.

Abstract: A mobile network-based drone supervision method is disclosed. The method includes: A core network element receives a request message from an application server. The request message includes a target event executed on a target drone. The core network element executes the target event on the target drone based on the request message. The core network element returns a response message to the application server. The response message includes an execution result of the target event.

Abstract: Example subscription information configuration methods and a communications device are described. One example method includes receiving a first device identifier by a network device from a first terminal device in a first access mode and receiving a second device identifier from a second terminal device in a second access mode. The network device determines whether the first device identifier matches the second device identifier to identify legality of the first terminal device. If the first device identifier matches the second device identifier, it indicates that the first terminal device is a legal terminal device. The network device sends subscription information of the first terminal device to the first terminal device in the first access mode, so that the first terminal device successfully accesses a network by using the subscription information.

Abstract: The present disclosure relates to handover methods, apparatus, and communications systems. One example method includes sending, by a source access point device, a first message to a target access point device through an access control device, and sending a second message to a terminal device, where the first message is used to notify the target access point device that the terminal device is prepared to be handed over to the target access point device, arid the second message is used to instruct the terminal device to be handed over to the target access point device.

Abstract: System and method embodiments are provided for accessing a wireless network. The embodiments enable establishing and releasing session resources in a wireless local area network (WLAN) corresponding to packet data network (PDN) connections in a 3 GPP enhanced packet core (EPC). In an embodiment, a method in a network component for establishing a control channel with a user equipment (UE) includes setting up, by the network component, a link layer channel, sending, by the network component, an identifier of the link layer channel to the UE; and communicating, by the network component, with the UE over the link layer channel using a WLAN control protocol (WLCP), wherein the WLAN comprises a trusted WLAN Access Network (TWAN).

Abstract: A configuration serving network element may configure information about the configuration serving network element for a fifth generation (5G) network architecture. A terminal device may obtain the information about the configuration serving network element from the 5G network architecture. The information about the configuration serving network element includes address information of the configuration serving network element. Therefore, the terminal device can establish a connection to the configuration serving network element based on the address information of the configuration serving network element, so that the configuration serving network element can automatically configure the terminal device by using the 5G network architecture.

Abstract: This application relates to a data transmission method. The method includes a terminal device receives indication information from a policy control function (PCF) network element. The indication information indicates data network access identifier information corresponding to an application. The method also includes the terminal device determines, based on the indication information, a PDU session for transmitting data of the application.

Abstract: A paging method, a paging device, and system are described. A mobility management network element (MME) obtains location information of user equipment (UE) in a non-3rd Generation Partnership Project (3GPP) network, where the UE already accesses the non-3GPP network. The MME receives a downlink data notification message, where the downlink data notification message carries an identifier of the UE. The MME pages the UE according to the location information of the UE in the non-3GPP network. In some implementations, a paging range may be determined according to the location information of the UE in the non-3GPP network, and a paging message does not need to be sent to all base stations in a registration area of the UE.