US 12,136,999 B2
Data transmission method and apparatus and communication system
Yang Lu, Beijing (CN); Qinyan Jiang, Beijing (CN); Guorong Li, Beijing (CN); and Meiyi Jia, Beijing (CN)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki (JP)
Filed on Feb. 1, 2022, as Appl. No. 17/589,959.
Application 17/589,959 is a continuation of application No. PCT/CN2019/100878, filed on Aug. 15, 2019.
Prior Publication US 2022/0158765 A1, May 19, 2022
Int. Cl. H04L 1/08 (2006.01); H04L 1/1867 (2023.01); H04W 72/23 (2023.01)
CPC H04L 1/08 (2013.01) [H04L 1/1867 (2013.01); H04W 72/23 (2023.01)] 9 Claims
OG exemplary drawing
 
1. A data transmission apparatus, being installed in a terminal equipment, the data transmission apparatus comprising a first transmitter, the first transmitter is configured to:
when a first timer is running and a second timer is not running, transmit retransmission data according to a configuration grant corresponding to a first hybrid automatic repeat request (HARQ) process, and start the second timer if LBT (Listen before Talk) is not failed for transmission of a transport block for the retransmission data;
or,
when the first timer is not running, transmit new data according to a configuration grant corresponding to the first HARQ process, and start the first timer and the second timer if LBT is not failed for transmission of a transport block for the new data.