CPC H04W 28/0268 (2013.01) [H04W 28/0205 (2013.01); H04W 28/10 (2013.01); H04W 4/40 (2018.02); H04W 28/0263 (2013.01); H04W 84/042 (2013.01)] | 18 Claims |
1. A data transmission method, comprising:
obtaining, by a first terminal, a quality of service flow identifier and a QoS parameter of a quality of service flow, wherein there is a correspondence between the quality of service flow identifier and the QoS parameter;
determining, by the first terminal, a logical channel used by the quality of service flow of the first terminal on a wireless direct communications interface, wherein the wireless direct communications interface is a communications interface between the first terminal and a second terminal; and
mapping, by the first terminal, the quality of service flow to the logical channel and sending the quality of service flow to the second terminal.
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