Title:
HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGEMENT (HARQ-ACK) FEEDBACK METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/028413
Kind Code:
A1
Abstract:
Provided are an HARQ-ACK feedback method and apparatus, relating to the field of communications. The method comprises: a network device sending at least one piece of downlink data and DCI corresponding to the at least one piece of downlink data to a terminal device; the terminal device receiving the at least one piece of downlink data and the DCI corresponding to the at least one piece of downlink data, wherein the DCI comprises first indication information, and the first indication information is used for indicating a target transmission time interval (TTI) for transmitting HARQ-ACK feedback information corresponding to the at least one piece of downlink data; according to second indication information, the terminal device generating HARQ-ACK feedback information needing to be fed back in the target TTI, wherein the second indication information is used for indicating the number of bits of an HARQ-ACK needing to be fed back in the target TTI; the terminal device sending the generated HARQ-ACK feedback information to the network device in the target TTI; and in the target TTI, the network device receiving the HARQ-ACK feedback information fed back by the terminal device, and decoding the HARQ-ACK feedback information according to the second indication information. The present invention solves the problem in the prior art that a terminal device cannot correctly feed back HARQ-ACK feedback information.
Inventors:
SUN WEI (CN)
LYU YONGXIA (CN)
GUO ZHIHENG (CN)
LYU YONGXIA (CN)
GUO ZHIHENG (CN)
Application Number:
PCT/CN2017/093789
Publication Date:
February 15, 2018
Filing Date:
July 21, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L1/16; H04L1/00; H04L1/18
Domestic Patent References:
| WO2014059592A1 | 2014-04-24 | |||
| WO2016119759A1 | 2016-08-04 | |||
| WO2016118240A1 | 2016-07-28 |
Foreign References:
| CN103650393A | 2014-03-19 |
Other References:
See also references of EP 3493437A4
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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