Abstract: A terminal authentication method includes sending, by a first terminal, a first request message to a target network device, where the first request message is used for requesting the target network device to register the first terminal as a first-type terminal, the first-type terminal includes an anchor UE or a location server UE, the anchor UE is a terminal whose location is known and which participates in sending or measuring a sidelink positioning reference signal, and the location server UE is a terminal which provides a sidelink positioning service function.

Abstract: Embodiments of this application provide a communication method, a communications apparatus, and a storage medium. The communication method includes: sending, by a new master network device, a request to an original master network device, to request context information of a terminal device on the original master network device and an original secondary network device; and receiving the context information of the terminal device on the original master network device and the original secondary network device from the original master network device. This application can effectively simplify implementation steps of resuming a multi-connectivity mode by the terminal device, reduce signaling procedures, and shorten a delay, thereby improving network transmission efficiency.

Abstract: This application discloses a positioning method and apparatus, a terminal, and a network-side device, and pertains to the field of communication technologies. The positioning method of embodiments of this application includes: determining, by a location server UE, to perform sidelink positioning for a target UE; obtaining, by the location server UE, information about candidate anchor UEs; determining, by the location server UE, at least one anchor UE to be used for participating in positioning from the candidate anchor UEs; and performing, by the location server UE, interaction with the target UE and/or the at least one anchor UE to position the target UE.

Abstract: A communication method and apparatus are provided, to resolve a problem that a terminal device may fail to normally communicate with a network side when an SCG is suspended and a link problem occurs in an MCG or a signal quality of the MCG deteriorates, so that communication reliability is improved. The communication method and the apparatus are applicable to a communication system of any dual connectivity architecture, such as EN-DC, NGEN-DC, NE-DC and NR-DC. The method includes: When detecting that a link problem occurs in an MCG or signal quality of the MCG is less than a signal quality threshold, a terminal device resumes a suspended SCG, to resume communication between the terminal device and a network side. The MCG is managed by a master node, and the SCG is managed by a secondary node.

Abstract: A positioning message transmission method includes at least one of the following: generating, by a first protocol layer of a network side device, a first positioning message, the first positioning message being used for sidelink (SL) positioning; and sending, by the first protocol layer of the network side device, the first positioning message; or receiving, by the first protocol layer of the network side device, the first positioning message.

Abstract: Embodiments of this application provide a communications method, apparatus, and system. The method includes: A terminal device receives first information sent by a network device, where the first information includes access control information of services with N service attributes, and N is an integer greater than or equal to 1; and the terminal device determines, based on a first service that currently needs to be initiated and the first information, whether the terminal device can initiate the first service, where the N service attributes include at least a non-public network service, and the first service is any one of the services with the N service attributes. Therefore, access control on the terminal device is implemented when there is a non-public network service.

Abstract: This application discloses a positioning method, a positioning apparatus, and a device, pertaining to the field of communications technologies. The positioning method of embodiments of this application includes: receiving, by a location server, a location request, where the location request is used to request to perform positioning for a target terminal; determining, by the location server, to perform sidelink positioning for the target terminal; determining, by the location server, one or more anchor terminals participating in positioning; performing, by the location server, interaction with the target terminal and one or more anchor terminals separately, performing a sidelink positioning procedure, and obtaining positioning measurement information; and obtaining, by the location server, location information of the target terminal based on the positioning measurement information.

Abstract: Disclosed in the present application are a method for positioning, a terminal, and a network device. The method for positioning according to embodiments of the present application includes: obtaining, by a first terminal, a sidelink location request, where the sidelink location request is used to request location of a target terminal, and the first terminal is a terminal providing a sidelink location server function; and executing, by the first terminal, a sidelink location operation based on the sidelink location request, and obtaining a positioning result of the target terminal.

Abstract: This application discloses an AI model information transmission method and apparatus and a device, and pertains to the field of communication technologies. The AI model information transmission method in embodiments of this application includes: sending, by a first communication device, first AI model information to a second communication device, where the first AI model information is used to indicate a first AI model and/or related information of the first AI model, and the first AI model is an AI model stored in UE; where the first communication device is the UE, a source cell in a handover for the UE, or a historical access cell in an RRC resume procedure of the UE, and the second communication device is a communication peer end of the UE, a target cell in the handover for the UE, or a new access cell in the RRC resume procedure of the UE.

Abstract: Embodiments of this application provide a delay measurement method, a network device, and a terminal device. The method includes network device receiving first information from a core network requesting the network device to measure a transmission delay between the network device and the terminal device. The network device obtains a transmission delay measurement result in response to the first information, and sends second information to the core network within a first preset duration The second information provides an indication of the transmission delay measurement result.

Abstract: Embodiments of this application relate to the field of communications technologies and disclose a communication method and a device. The method includes: determining an offset based on a first quantity, wherein the first quantity is a quantity of beams that are used to determine signal quality of a first cell; and determining the signal quality of the first cell based on the offset.

Abstract: Example communication methods and apparatus are described. One example method includes determining, by a terminal device, that a connection failure occurs between the terminal device and a first cell, where the first cell is a cell of a first network device. The terminal device determines signal quality of a second cell of a second network device, where both the first network device and the second network device provide communication services for the terminal device. If the signal quality of the second cell is greater than or equal to a first preset threshold, the terminal device performs a connection recovery process between the terminal device and the first cell by using the second cell.

Abstract: An artificial intelligence (AI) protocol layer of a first access network device generates an AI parameter, and sends the AI parameter to a terminal device. Then, the first access network device receives, from the terminal device, AI data obtained based on the AI parameter. The AI protocol layer of the first access network device is an upper layer of a radio resource control (RRC) protocol layer of the first access network device, an AI protocol layer of the terminal device is an upper layer of an RRC protocol layer of the terminal device, and the AI parameter indicates the AI data that needs to be obtained and an AI data obtaining manner.

Abstract: A core network element includes a processor, and a non-transitory memory coupled to the processor. The non-transitory memory is configured to store non-transitory instructions, and in response to being executed by the processor, cause the core network element to perform operations including generating, by a first artificial intelligence (AI) protocol layer of the core network element, an AI parameter. The first AI protocol layer of the core network element is an upper layer of a next generation application protocol (NGAP) protocol layer of the core network element. The operations further include sending the AI parameter to a first access network device, and receiving the AI data from the first access network device. The AI parameter is useable for indicating AI data that is to be obtained and an obtaining manner of the AI data.

Abstract: A history information recording method, including obtaining, by a current secondary node, information about a history cell that a terminal device visits, where the information about the history cell comprises at least one of stay time of the terminal device in the history or moving speed information of the terminal device in the history cell, and performing, by the current secondary node, handover preparation based on the information about the history cell.

Abstract: A communication method and a communication apparatus, the method including receiving first information from a network device, where the first information indicates, to a terminal device, to suspend a secondary cell group (SCG), suspending the SCG based on the first information, and changing a configuration parameter of a master cell group (MCG), where the configuration parameter comprises at least one of an available uplink transmission time period, a maximum transmit power, or a control channel blind detection parameter.

Abstract: A positioning configuration information request method and a terminal are provided. The positioning configuration information request method includes: transmitting, by a target terminal, a first request to a first network side device. The first request is used for requesting the first network side device to configure first Positioning Reference Signal (PRS) configuration information or a first PRS transmission resource. The first PRS configuration information or the first PRS transmission resource is used for Sidelink positioning. The positioning configuration information request method further includes receiving, by the target terminal, a first response from the first network side device. The first response includes the first PRS configuration information or the first PRS transmission resource.

Abstract: This application pertains to the field of communication technologies, and discloses a sidelink positioning method and apparatus, a terminal, a server, and a radio access network device. The sidelink positioning method in embodiments of this application includes: receiving, by a first terminal, a configuration message from a radio access network device, where the configuration message is used to configure N sets of SL positioning reference signal configurations, and N is a positive integer greater than 1; determining, by the first terminal, a target SL positioning reference signal configuration in the N sets of SL positioning reference signal configurations; and sending, by the first terminal, an SL positioning reference signal based on the target SL positioning reference signal configuration.