US 11,778,596 B2
Data transmission method, apparatus, device and system for direct communication
Qun Zhao, Beijing (CN)
Assigned to Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Filed on Jun. 23, 2021, as Appl. No. 17/356,435.
Application 17/356,435 is a continuation of application No. PCT/CN2018/125825, filed on Dec. 29, 2018.
Prior Publication US 2021/0321380 A1, Oct. 14, 2021
Int. Cl. H04W 72/044 (2023.01); H04L 1/1607 (2023.01); H04L 5/00 (2006.01)
CPC H04W 72/044 (2013.01) [H04L 1/1671 (2013.01); H04L 5/0042 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A data transmission method for direct communication, comprising:
transmitting, by a first terminal, sidelink data to a second terminal through a sidelink according to information transmitted by an access network device;
receiving, by the first terminal, sidelink hybrid auto repeat request (HARQ) feedback information fed back by the second terminal, the sidelink HARQ feedback information being configured to indicate a receiving state corresponding to the sidelink data;
reporting, by the first terminal, the sidelink HARQ feedback information to the access network device, wherein, reporting the sidelink HARQ feedback information to the access network device, comprises: reporting the sidelink HARQ feedback information to the access network device in a first time-frequency resource through a physical uplink control channel (PUCCH); and
receiving a first configuration signaling transmitted by the access network device, the first configuration signaling being configured to indicate a first time interval set, wherein the first time interval set is corresponding to the sidelink HARQ feedback information,
wherein the first time interval set comprises configured time intervals between sidelink data transmission and reporting corresponding sidelink HARQ feedback information by the first terminal.