| 摘要 |
The present invention relates to the technical field of communications, and in particular to a data transmission method and apparatus, which are used for solving the problem that the transmission quality of service is reduced caused by the fact that continuous transmission of the service cannot be ensured after the service of a user is shunted from one radio access technology (RAT) to another RAT. The data transmission method provided comprises: receiving, by a UE, downlink data sent by a non-cellular network radio access device, and determining a data type of the received downlink data according to first convergence indication information for indicating the data type of the downlink data; and after it is determined that the data type of the downlink data is cellular network data, processing, by the UE, the downlink data by means of a cellular network protocol. Due to the fact that a UE can process downlink data by means of a cellular network protocol after receiving the downlink data which is forwarded by a non-cellular network radio access device and comes from a cellular network radio access device, different RATs are fused, continuous transmission of service is ensured, and the transmission quality of services is improved. |
