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发明授权
CN105163285B 一种边缘MBMS业务的数据传输方法及相关设备 有权

一种边缘MBMS业务的数据传输方法及相关设备
摘要：
本发明公开了一种边缘MBMS业务的数据传输方法及相关设备，方法应用于MBMS业务的数据传输系统，系统中包括位于核心网的中心BM‑SC、位于网络边缘的边缘BM‑SC和MBMS GW，方法包括：中心BM‑SC创建控制面承载上下文；中心BM‑SC向边缘BM‑SC发送会话开始请求，以使得边缘BM‑SC创建用户面承载上下文；中心BM‑SC接收边缘BM‑SC发送的会话开始响应；中心BM‑SC向边缘BM‑SC下发业务密钥，以使得边缘BM‑SC利用业务密钥对边缘MBMS业务的数据加密并将数据通过MBMS GW发给UE。本发明能够降低边缘MBMS业务的数据传输时延，减少边缘MBMS业务的数据传输对核心网带宽的使用。
摘要（英）：

The present invention discloses a data transmission method for an edge MBMS service and a related device. The method is applied to an MBMS service data transmission system. The system 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. The method includes: creating, by the central BM-SC, a control-plane bearer context; sending, by the central BM-SC, a session start request to the edge BM-SC, so that the edge BM-SC creates a user-plane bearer context; receiving, by the central BM-SC, a session start response sent by the edge BM-SC; and delivering, by the central BM-SC, 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. According to the present invention, a data transmission latency of the edge MBMS service can be reduced, and less core network bandwidth is used for data transmission of the edge MBMS service.

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