Abstract: A data transmission method, an apparatus, and a system are provided. In the method, there is at least one tunnel between an access network device and a terminal device, the tunnel includes at least one stream, and the at least one stream is used to transmit data. The access network device may send mapping information to the terminal device, and then data transmission may be performed between the access network device and the terminal device based on the mapping information, to implement mapping between data transmitted through the tunnel or a stream on the tunnel and a QoS flow, thereby implementing differentiated transmission.

Abstract: This application provides a communication method and a communication apparatus. The communication method includes: A first network element sends sensing data to an NEF network element. Correspondingly, the NEF network element sends the sensing data to an AF network element after receiving the sensing data. In other words, in the technical solution provided in this application, the first network element may expose the sensing data to the AF network element through the NEF network element.

Abstract: A communication method and apparatus are provided. After establishment of a first MA PDU session of a first terminal apparatus is completed, the first terminal apparatus negotiates with a first user plane function to establish a first MPQUIC connection, where the first MPQUIC connection is associated with the first MA PDU session. The first terminal apparatus derives, based on a preconfigured key, a key for protecting data of the first MPQUIC connection, where the data of the first MPQUIC connection is transmitted on a plurality of paths between the first terminal apparatus and the first user plane function. The preconfigured key is further used by the first terminal apparatus to establish a second MPQUIC connection to a second user plane function, and the first user plane function and the second user plane function are located in a same public land mobile network.

Abstract: This application relates to a communication method, apparatus, and system. A first core network element obtains first BDP requirement information, where the first BDP requirement information indicates a requirement for a product of a bandwidth and a transmission delay that correspond to a first service. The first core network element sends first BDP information to an access network device, where the first BDP information is determined based on the first BDP requirement information, and the first BDP information is used by the access network device to schedule a resource for a terminal device based on the first BDP information. In embodiments of this application, parameters such as a bandwidth and a delay may be considered in combination, to comprehensively ensure network performance.

Abstract: This application provides a communication method and apparatus, and a computer-readable storage medium. The communication method includes: A first EES receives a first request message from a terminal device, where the first request message is used to request an EAS corresponding to the terminal device; and sends, to the terminal device, information about a first EAS and at least one EAS corresponding to the terminal device. Based on technical solutions provided in this application, it can be ensured that a UPF and a first EAS that are connected to the terminal device are co-located. This can reduce a latency.

Abstract: A terminal device may determine an execution node for a computing sub-task within a computing task based on a quality of service (QoS) parameter of the computing task and an available computing resource of the terminal device. The execution node of the computing sub-task may be a computing network converged node or the terminal device. By autonomously dividing the computing task and selecting an execution node for the computing sub-task, the terminal device may offload the sub-task to a corresponding execution node when memory resources are limited.

Abstract: Embodiments of this disclosure provide a communication method and apparatus. A first user plane function network element receives a first data packet from a terminal device, where the first data packet corresponds to a first application; determines a second user plane function network element based on at least one DNAI and a resource required by the first application, where the at least one DNAI is a DNAI corresponding to the first application, and the second user plane function network element corresponds to a first DNAI in the at least one DNAI; and sends the first data packet to the second user plane function network element.

Abstract: This application provides a communication method and apparatus, and relates to the mobile communication field. According to the method, a sensing network element may obtain capability information of a device supporting a non-3rd generation partnership project (N3GPP) sensing capability, and select a first device based on the capability information in response to receiving a sensing request from a requesting device. The sensing network element may further send a first message to the selected first device, to request N3GPP sensing data. The sensing network element may further receive first sensing data from the first device, where the first sensing data includes the N3GPP sensing data. Sensing performance can be improved based on the N3GPP sensing data.

Abstract: This application relates to a communication method, an apparatus, and a system. A computing node obtains code of a first function based on a session establishment request of a terminal device, where the session establishment request is used to request to establish a first session. After obtaining the code of the first function, the computing node receives, from the terminal device via the first session, a first request used to access the first function, and runs the code of the first function based on first indication information, to process the first request. In embodiments of this application, the computing node may first obtain the code of the first function before receiving the first request from the terminal device, so that after receiving the first request, the computing node does not need to perform a code download process.

Abstract: An application context relocation method includes, in response to an edge enabler server determining that a terminal device moves to a target location, sending, by the edge enabler server, an application context relocation (ACR) complete message to the terminal device for a service continuity planning ACR.

Abstract: Embodiments of this application provide a switching method and a communication apparatus. According to the method in this application, an access network device may determine, based on first information received from a first device, to switch from a first interface to a second interface to transmit an uplink data packet from a terminal device, so as to avoid service interruption of the terminal device caused because the access network device blindly switches from the first interface to the second interface to transmit the uplink data packet from the terminal device when the access network device cannot identify a data packet transmitted between the terminal device and a source network computing converged function node, thereby helping ensure service experience of a user.

Abstract: This application provides a communication method and a related device, to increase a success rate of a terminal device in receiving multicast data. In addition, a quantity of users served by a multicast session can be increased, and a quantity of multicast session users that can be served in a single cell can be also increased. In the method, a first device determines, based on first information, that a first terminal device prefers to receive multicast data in a first state, where the first state includes a radio resource control (radio resource control, RRC) connected (RRC CONNECTED) state or an RRC inactive (RRC INACTIVE) state; and the first device sends second information to a network device, where the second information indicates that the first terminal device prefers to receive the multicast data in the first state.

Abstract: Embodiments of this application relate to the field of communication technologies, and provide a method for determining an edge configuration server and an apparatus, to select a more proper edge configuration server for a terminal apparatus. The method includes: A core network element determines, based on a mobile network accessed by a terminal apparatus, that an edge configuration server serving the terminal apparatus is a first edge configuration server, where at least one mobile network corresponding to the first edge configuration server includes the mobile network accessed by the terminal apparatus. The core network element sends, to the terminal apparatus, information indicating the first edge configuration server.

Abstract: A handover method and a communication apparatus are provided. The method includes: A target access network device obtains a first message and information used for transmitting multicast data, where the first message is used for requesting to establish a resource for handing over a terminal device to the target access network device. The target access network device sends a second message, where the second message indicates the established resource on the target access network device; receives a first packet from a user plane network element, where the first packet corresponds to the information used for transmitting the multicast data; and sends the first packet to the terminal device. In this way, the terminal device is handed over from a source access network device to the target access network device when the terminal device receives the multicast data.

Abstract: Embodiments of this application provide a communication method and an apparatus. The method includes: A first ECS receives a PLMN identifier from a first device; the first ECS sends first request information to a second ECS based on the PLMN identifier, where the first request information is for requesting information about a second EES that matches the first request information; and the first ECS receives the information about the second EES from the second ECS, where the first device may be a terminal device or a first EES. According to the method and the apparatus in this application, when a terminal device roams and is handed over from a first network to a second network, the terminal device may determine information about a second EES corresponding to the second network.

Abstract: This application provides a context transfer method and a communication apparatus. The method includes: When an edge enabler client context fails to be relocated from a second edge enabler server to a first edge enabler server, a first apparatus sends first information to a first edge application server corresponding to the first edge enabler server, where the first information is used by the first edge application server to subscribe to edge enabler server capability exposure information from the first edge enabler server. In the foregoing technical solution, when an edge enabler client context fails to be transferred, the first apparatus may indicate a target edge application server to subscribe to edge enabler server capability exposure information from a target edge enabler server.

Abstract: This application provides a communication method and an apparatus. The method includes: A terminal device, a serving access network device, a target access network device, a mobility management network element, or a session management network element corresponding to the terminal device, or a session management network element corresponding to a broadcast service may bind the terminal device to the broadcast service and/or activate/deactivate the broadcast service, based on one or more of identification information of the broadcast service, a service area of the broadcast service, a location of the terminal device, or a status of the terminal device, to reuse a unicast resource of the terminal device. In addition, a binding procedure and an activation procedure may be coupled or separately performed.

Abstract: This application provides a communication method and apparatus, relating to the field of communication technologies. In the method, when update of an MBS service area of a service for which a multicast/broadcast session has been established to a first service area fails, an MBS device can also trigger continuation of establishing a multicast/broadcast session for the service, allowing a subsequently established multicast/broadcast session to provide the service for the first service area. In this way, continuity of the service can still be ensured when the update of the MBS service area fails.

Abstract: An application context relocation method and apparatus are provided. One example method includes: receiving first information from an application function entity, where the first information is for indicating to relocate an application context associated with the application function entity; and when an event that triggers relocation of the application context occurs, determining, based on the first information, to relocate the application context.

Abstract: A communication method includes receiving, by a first edge configuration server (ECS), a public land mobile network (PLMN) identifier of a second network from a first device, wherein the first device includes a terminal device or a first edge enabler server (EES). The communication method further includes sending, by the first ECS, first request information to a second ECS based on the PLMN identifier. The communication method further includes receiving, by the first ECS, the information of the second EES from the second ECS. The first request information is useable for requesting information of a second EES. A first network is a home network of the terminal device. The first ECS and the first EES correspond to the first network. The second network is a serving network of the terminal device. The second ECS and the second EES correspond to the second network.