Data transmission method and data transmission system

A data transmission method is used in a data transmission system comprising a receiving interface and a plurality of transmission interfaces, and comprises the following steps: (a) receiving first transmission information transmitted by a source device through the receiving interface, wherein the first transmission information comprises information of a plurality of data groups corresponding to at least two data groups in the transmission interface; and (b) according to the first transmission information, enabling the transmission interfaces to transmit a part of the data groups corresponding to the transmission interfaces to a corresponding target device in turn until all the data groups are transmitted. 一种数据传输方法，使用在包含一接收接口以及多个传输接口的数据传输系统中，该数据传输方法包含：(a)以该接收接口接收一来源装置传送的一第一传输信息，其中该第一传输信息包含了该传输接口中至少两个所对应的多个数据群的信息；以及(b)根据该第一传输信息，使该些传输接口轮流传送其所对应的该数据群的一部分给对应的一目标装置，直到所有该些数据群都传送完毕。