US 12,004,179 B2
Method and apparatus for transmitting group downlink control information
Xianghui Han, Guangdong (CN); Peng Hao, Guangdong (CN); Wei Gou, Guangdong (CN); Chunli Liang, Guangdong (CN); Jing Shi, Guangdong (CN); and Shuqiang Xia, Guangdong (CN)
Assigned to ZTE CORPORATION, Guangdong (CN)
Appl. No. 17/422,223
Filed by ZTE CORPORATION, Guangdong (CN)
PCT Filed Jan. 13, 2020, PCT No. PCT/CN2020/071648
§ 371(c)(1), (2) Date Jul. 12, 2021,
PCT Pub. No. WO2020/143823, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 201910028706.1 (CN), filed on Jan. 11, 2019.
Prior Publication US 2022/0086811 A1, Mar. 17, 2022
Int. Cl. H04H 20/71 (2008.01); H04L 1/1607 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 1/1614 (2013.01); H04L 1/1812 (2013.01); H04L 5/0055 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for transmitting group downlink control information (DCI), comprising:
transmitting group Downlink Control Information (DCI) to a user side, wherein the group DCI comprises N bit blocks, and each bit block carries indication information comprising at least one of: an identifier of a user to be fed back (UE-ID), an identifier of a Hybrid Automatic Repeat reQuest (HARQ) process (HARQ-ID) of the user to be fed back, and a bitmap mapping of K HARQ processes of one user; where N is a positive integer greater than 0; and the indication information carried in each bit block of the group DCI is configured to indicate feedback information of an HARQ process corresponding to the indication information;
wherein before transmitting the group DCI to the user side, the method further comprises:
setting a bit value corresponding to at least one of the UE-ID and the HARQ-ID in bit blocks of the group DCI, wherein each bit block comprises one UE-ID and at least one HARQ-ID, and N is a predefined value or a semi-statically configured value;
wherein the step of setting a bit value corresponding to at least one of the UE-ID and the HARQ-ID in bit blocks of the group DCI comprises:
selecting P bit blocks for setting at least one of the UE-ID of the user to be fed back and the HARQ-ID of the user to be fed back, and defining the P bit blocks as valid bit blocks, where P is a integer greater than 0; and
defining, in the case that P<N, bit blocks except the P bit blocks among the N bit blocks as invalid bit blocks, wherein values of the invalid bit blocks are set by at least one of:
setting each invalid bit block to the same value as at least one valid bit block among the P bit blocks; or
setting values of all invalid bit blocks to 0 or 1 or other preset values.