公开(公告)号：US20210352683A1

公开(公告)日：2021-11-11

申请号：US17286386

申请日：2019-10-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo HAN ,  Zhiqiang SONG ,  Hongcheng ZHUANG ,  Bingguang PENG ,  Zhenguo DU

IPC: H04W72/12

Abstract: This application provides a data transmission method and a terminal device, to reduce a data transmission latency and improve data transmission reliability. The method includes: obtaining, by a terminal device, a grant-free GF resource configured by a base station; obtaining, by the terminal device, current channel quality; and if the current channel quality is first channel quality, transmitting, by the terminal device, to-be-transmitted data by using the GF resource, or transmitting, by the terminal device, the to-be-transmitted data by using a GB resource, where the first channel quality falls within a first range; or if the current channel quality is second channel quality, skipping, by the terminal device, transmitting to-be-transmitted data by using the GF resource, where the second channel quality falls within a second range; where the first channel quality is better than the second channel quality, and the first range is different from the second range.