Title:
DATA TRANSMISSION METHOD AND APPARATUS FOR DIRECT COMMUNICATION, DEVICE, AND DATA TRANSMISSION SYSTEM FOR DIRECT COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2020/133504
Kind Code:
A1
Abstract:
The present disclosure relates to a data transmission method and apparatus for direct communication, a device, and a data transmission system for direct communication, which belong to the technical field of communications. The method comprises: a first terminal sending, according to DCI sent by an access network device, direct data to a second terminal by means of a direct link; receiving direct hybrid auto repeat request (HARQ) feedback information fed back by the second terminal, wherein the direct HARQ feedback information is used for indicating a reception state corresponding to the direct data; and reporting the direct HARQ feedback information to the access network device. According to the present disclosure, by the means, in a direct communication scenario based on scheduling of an access network device, direct HARQ feedback information can be first transmitted from a second terminal to a first terminal and then reported to the access network device by the first terminal, thereby ensuring the success rate of information transceiving in the direct communication scenario, and facilitating an improvement in data transmission efficiency.
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Inventors:
ZHAO QUN (CN)
Application Number:
PCT/CN2018/125825
Publication Date:
July 02, 2020
Filing Date:
December 29, 2018
Export Citation:
Assignee:
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
H04L1/18
Domestic Patent References:
| WO2017025141A1 | 2017-02-16 |
Foreign References:
| CN103825687A | 2014-05-28 | |||
| CN105553612A | 2016-05-04 | |||
| CN104885396A | 2015-09-02 | |||
| CN109075908A | 2018-12-21 |
Other References:
See also references of EP 3905569A4
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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