A communication method of an access and mobility function (AMF) node in a communication system is provided. The communication method includes receiving, from a base station, a registration request message for a terminal, transmitting, to an old AMF previously accessed by the terminal, an information request message for the terminal, and receiving, from the old AMF, an information response message including network slice selection assistance information (NSSAI) corresponding to the terminal.

A communication method, an apparatus, and a system in which a first session management function entity based on information of a terminal group determines user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

A communication method, an apparatus, and a system in which a first session management function entity based on information of a terminal group determines user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

A data transmission method, apparatus, device, and a computer-readable storage medium are provided. The data transmission method of the present disclosure includes receiving data sent by a User Equipment UE, determining a Session Management Function SMF, and forwarding the data to the SMF, wherein after the SMF receives the data, the SMF forwards the data to a User Plane Function UPF.

A data transmission method, apparatus, device, and a computer-readable storage medium are provided. The data transmission method of the present disclosure includes receiving data sent by a User Equipment UE, determining a Session Management Function SMF, and forwarding the data to the SMF, wherein after the SMF receives the data, the SMF forwards the data to a User Plane Function UPF.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method includes configuring, by a User Equipment (UE) (100), a Protocol Data Unit (PDU) session type as an always-ON type or a normal PDU type. Further, the method includes sending, by the UE (100), a PDU session establishment request message including the PDU session type to be the always-ON type or the normal PDU type to a network (200) during an initial PDU session establishment procedure.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method includes configuring, by a User Equipment (UE) (100), a Protocol Data Unit (PDU) session type as an always-ON type or a normal PDU type. Further, the method includes sending, by the UE (100), a PDU session establishment request message including the PDU session type to be the always-ON type or the normal PDU type to a network (200) during an initial PDU session establishment procedure.

A vehicle routing evaluation system makes predictions about network performance data along road segments relevant to navigation of a vehicle and generates routing instructions or recommendations based in part on the network performance data. The vehicle routing evaluation system may send control signals to automatically control navigation of the vehicle to follow the routing generated routing or may present the navigation instructions to a teleoperator that controls the vehicle. Alternatively, the vehicle routing evaluation system generates a display with a navigational map overlay providing visual cues indicative of predicted wireless performance along various road segments to enable the teleoperator to select between possible routes.

A vehicle routing evaluation system makes predictions about network performance data along road segments relevant to navigation of a vehicle and generates routing instructions or recommendations based in part on the network performance data. The vehicle routing evaluation system may send control signals to automatically control navigation of the vehicle to follow the routing generated routing or may present the navigation instructions to a teleoperator that controls the vehicle. Alternatively, the vehicle routing evaluation system generates a display with a navigational map overlay providing visual cues indicative of predicted wireless performance along various road segments to enable the teleoperator to select between possible routes.

A binding support method, includes receiving third information from the source policy control network element, wherein the third information comprises session information of a policy session and an identifier of a policy control network element set to which the source policy control network element belongs, receiving a first request message from an application network element to query a target policy control network element that serves the policy session, the first request message comprises the session information of the policy session, the session information of the policy session is used to indicate the policy session, and determining the target policy control network element based on the third information and the first request message.