公开(公告)号：US20210083831A1

公开(公告)日：2021-03-18

申请号：US17104638

申请日：2020-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chenggang JIANG ,  Xingxin ZHANG ,  Jiu YIN ,  Xuehuan WANG

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06

Abstract: Embodiments of this application disclose a data transmission method and a communications apparatus. A method in an embodiment includes: sending, by a network device, first data to a terminal in a first subframe through a first channel, where the first channel is a channel occupied in a channel system by a service between the network device and the terminal; performing, by the network device, channel listening on a channel that is not occupied in the channel system by the service; and when there is a second channel in an idle state, sending, by the network device, second data of the service to the terminal in a second subframe through the first channel and the second channel, where the second subframe is after the first subframe. The service includes the first data and the second data, and a data frame of the service includes the first subframe and the second subframe.