US 12,308,970 B2
HARQ-ACK feedback method and apparatus, and communication device
Mingju Ll, Beijing (CN)
Assigned to BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
Appl. No. 17/777,014
Filed by BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing (CN)
PCT Filed Nov. 19, 2019, PCT No. PCT/CN2019/119521
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/097682, PCT Pub. Date May 27, 2021.
Prior Publication US 2022/0407628 A1, Dec. 22, 2022
Int. Cl. H04L 1/18 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01)
CPC H04L 1/1812 (2013.01) [H04L 5/0046 (2013.01); H04L 5/0053 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) feedback, comprising:
sending, by a terminal, feedback information according to a reception condition of downlink data, wherein the feedback information comprises carrier reception indication information and HARQ-ACK information;
wherein the carrier reception indication information is configured to indicate at least one of followings: the downlink data is received on a first carrier by the terminal or the downlink data is not received on a second carrier by the terminal; and the HARQ-ACK information comprises feedback information of the downlink data received on the first carrier;
wherein one or more bits is used by the carrier reception indication information for indicating one or more carriers;
wherein in a case where a first bit in the carrier reception indication information corresponding to the first carrier has a first bit value, and the HARQ-ACK information comprises HARQ-ACK feedback information of all HARQ-ACK processes on the first carrier corresponding to the first bit;
wherein in a case where a second bit in the carrier reception indication information corresponding to the second carrier has a second bit value, and the HARQ-ACK information does not comprise HARQ-ACK feedback information of any HARQ-ACK process on the second carrier corresponding to the second bit.