| 摘要 |
The embodiments of the present invention provide a data transmission method and device, the method comprising: a first station device determining that a second station device supports a first service; receiving a device group join request message sent by the second station device according to the MAC address of a first device group, the first device group being a device group of a first service and the device group to which the first station device belongs; employing a contention sending means to send, according to the multicast MAC address of the first device group, a device group join response message to the other station devices in the first device group and to the second station device, the device group join response message being used for consenting to the second station device joining the first device group; performing, in the service window of the first service, data transmission of the first service together with the second station device, the service window comprising the service transmission time and/or channel. Thus the service data is transmitted in a timely manner, improving transmission efficiency. |
