US 12,445,183 B2
Communication method and device
Xiang Gao, Beijing (CN); Kunpeng Liu, Beijing (CN); and Ruiqi Zhang, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Apr. 2, 2024, as Appl. No. 18/624,988.
Application 18/624,988 is a continuation of application No. 17/371,978, filed on Jul. 9, 2021, granted, now 11,962,381.
Application 17/371,978 is a continuation of application No. PCT/CN2020/071604, filed on Jan. 11, 2020.
Claims priority of application No. 201910028819.1 (CN), filed on Jan. 11, 2019; and application No. 201910364435.7 (CN), filed on Apr. 30, 2019.
Prior Publication US 2024/0275462 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/06 (2006.01); H04W 72/02 (2009.01); H04W 72/044 (2023.01); H04W 72/0453 (2023.01)
CPC H04B 7/0634 (2013.01) [H04B 7/0639 (2013.01); H04W 72/02 (2013.01); H04W 72/0453 (2013.01); H04W 72/046 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for communication, comprising:
sending configuration information to a terminal device, wherein the configuration information indicates one or more space domain beam basis vector groups and Q thresholds, and the Q thresholds correspond one-to-one to space domain beam basis vectors in the one or more space domain beam basis vector groups; and
receiving amplitudes and phases of space-frequency combination coefficients in M space-frequency combination coefficient vectors from the terminal device, wherein the M space-frequency combination coefficient vectors are determined based on L space domain beam basis vectors, K frequency domain basis vectors corresponding to each of the L space domain beam basis vectors, and a target precoding vector, and wherein:
the L space domain beam basis vectors are selected from a space domain beam basis vector group set, the K frequency domain basis vectors are selected from a frequency domain basis vector set,
one space-frequency combination coefficient vector corresponds to one space domain beam basis vector, the space-frequency combination coefficient vector corresponding to the space domain beam basis vector satisfies a restriction rule, and the restriction rule is associated with a threshold corresponding to the space domain beam basis vector.