Abstract: Embodiments of the present disclosure describe a network slice determining method and system, and an apparatus. As discussed with respect to the embodiments described herein, in the communications field, a network slice to which a terminal belongs can be determined for the terminal in a 5G network. The method may include obtaining, by a network selection function (NSF) node, an identity of a terminal. The method may also include sending, by the NSF node, the identity to a home subscriber server (HSS), and then receiving, by the NSF node, a slice identifier of the network slice that is sent by the HSS, where the slice identifier is determined by the HSS based on the identity The method may also include determining, by the NSF node based on the slice identifier, a network slice to which the terminal belongs.

Abstract: A data transmission method and a device are disclosed. The method includes: sending, by a second network element, control signaling to a first network element; and sending, by the second network element, a third message to a shared data layer, where the control signaling includes temporary data related to the control signaling, and the third message includes static data related to the control signaling. After receiving the third message, the shared data layer sends a first message to the first network element, where the first message includes the static data related to the control signaling. After receiving the control signaling from the second network element and receiving the first message from the shared data layer, the first network element executes the control signaling. In the embodiments of this disclosure, channel bandwidth resources that the control signaling needs to occupy is reduced.

Abstract: The present disclosure discloses a data transmission method for an edge MBMS service and a related device. The method includes providing an MBMS service data transmission system that includes a central BM-SC located on a core network and an edge BM-SC and an MBMS GW that are located on a network edge; creating, by the central BM-SC, a control-plane bearer context; sending a session start request to the edge BM-SC, so that the edge BM-SC creates a user-plane bearer context; receiving a session start response sent by the edge BM-SC; and delivering a service key to the edge BM-SC, so that the edge BM-SC encrypts data of the edge MBMS service by using the service key and sends data to UE via the MBMS GW.

Abstract: Embodiments of the present disclosure describe a network slice determining method and system, and an apparatus. As discussed with respect to the embodiments described herein, in the communications field, a network slice to which a terminal belongs can be determined for the terminal in a 5G network. The method may include obtaining, by a network selection function (NSF) node, an identity of a terminal. The method may also include sending, by the NSF node, the identity to a home subscriber server (HSS), and then receiving, by the NSF node, a slice identifier of the network slice that is sent by the HSS, where the slice identifier is determined by the HSS based on the identity The method may also include determining, by the NSF node based on the slice identifier, a network slice to which the terminal belongs.

Abstract: The present disclosure discloses a data transmission method for an edge MBMS service and a related device. The method includes providing an MBMS service data transmission system that includes a central BM-SC located on a core network and an edge BM-SC and an MBMS GW that are located on a network edge; creating, by the central BM-SC, a control-plane bearer context; sending a session start request to the edge BM-SC, so that the edge BM-SC creates a user-plane bearer context; receiving a session start response sent by the edge BM-SC; and delivering a service key to the edge BM-SC, so that the edge BM-SC encrypts data of the edge MBMS service by using the service key and sends data to UE via the MBMS GW.