US 12,438,651 B2
HARQ feedback method, terminal and base station
Junwei Wang, Beijing (CN); and Rui Zhao, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 17/911,140
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Feb. 3, 2021, PCT No. PCT/CN2021/075074
§ 371(c)(1), (2) Date Sep. 13, 2022,
PCT Pub. No. WO2021/196880, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 202010239180.4 (CN), filed on Mar. 30, 2020.
Prior Publication US 2023/0107562 A1, Apr. 6, 2023
Int. Cl. H04L 1/18 (2023.01); H04L 1/1829 (2023.01); H04L 5/00 (2006.01); H04W 72/04 (2023.01); H04W 72/0446 (2023.01); H04W 72/21 (2023.01); H04L 1/1812 (2023.01)
CPC H04L 1/1861 (2013.01) [H04L 1/1858 (2013.01); H04L 5/0055 (2013.01); H04W 72/0446 (2013.01); H04W 72/21 (2023.01); H04L 1/1812 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Hybrid Automatic Repeat Request (HARQ) feedback method, performed by a terminal, comprising:
obtaining a target timeline parameter value for indicating a timing at which the terminal feeds back HARQ-ACK; a target timeline parameter sequence being predefined between the terminal and a base station, and the target timeline parameter sequence comprising multiple sequence index values and multiple timeline parameter values which have one-to-one correspondence; the timeline parameter value indicating slot intervals between a HARQ-ACK feedback slot and a last symbol of Physical Downlink Shared Channel (PDSCH), or the timeline parameter value indicating a slot where a Physical Uplink Control Channel (PUCCH) resource is located and the slot where the PUCCH resource is located corresponding to the HARQ-ACK feedback slot; and the target timeline parameter value being one of multiple timeline parameter values, and a time corresponding to the target timeline parameter value being equal to or greater than a time corresponding to a capability parameter value of PDSCH reception processing for UE; and
feeding back the HARQ-ACK to the base station on the slot corresponding to the target timeline parameter value,
wherein the obtaining the target timeline parameter value for indicating the timing at which the terminal feeds back HARQ-ACK comprises:
receiving a second control signaling sent by the base station and obtaining a predefined target timeline parameter sequence, wherein the second control signaling carries a target sequence index value, the target sequence index value is one of the multiple sequence index values, a timeline parameter value corresponding to the target sequence index value is the target timeline parameter value, the timeline parameter value comprised in the target timeline parameter sequence is obtained from a product of a default parameter value in a first default timeline parameter sequence and a timeline offset factor, and the first default timeline parameter sequence is {1, 2, 3, 4, 5, 6, 7, 8}.