| 摘要 |
Disclosed are a data transmission method for an edge MBMS service and a relevant device. The method is applicable to a data transmission system of an MBMS service, the system comprising a central BM-SC located in a core network and an edge BM-SC located at the edge of the network and an MBMS GW. The method comprises: a central BM-SC creating a control plane bearer context; the central BM-SC sending a session start request to an edge BM-SC, so that the edge BM-SC creates a user plane bearer context; the central BM-SC receiving a session start response sent by the edge BM-SC; and the central BM-SC issuing a service key to the edge BM-SC, so that the edge BM-SC encrypts data of an edge MBMS service using the service key and sends the data to a UE via an MBMS GW. The present invention can reduce a data transmission time delay of an edge MBMS service, and reduces the use of a core network bandwidth for the data transmission of the edge MBMS service. |
