公开(公告)号：US11711188B2

公开(公告)日：2023-07-25

申请号：US17587417

申请日：2022-01-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda Liu ,  Kunpeng Liu

IPC: H04B7/0413 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04B7/0413

Abstract: Example demodulation reference signal (DMRS) port indication methods and apparatus are described. In one example method, a network device determines DMRS port indication information, and sends the DMRS port indication information. The DMRS port indication information is used to indicate a DMRS port set, and the DMRS port set is one of a plurality of DMRS port sets. A first subset of the plurality of DMRS port sets are first DMRS port sets, and DMRS ports in each first DMRS port set belong to a plurality of CDM groups. A second subset of the plurality of DMRS port sets are second DMRS port sets, and at least one DMRS port in each second DMRS port set belongs to a same CDM group.

公开(公告)号：US20230180134A1

公开(公告)日：2023-06-08

申请号：US17958885

申请日：2022-10-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianda Liu ,  Xueru Li

IPC: H04W52/14

CPC classification number: H04W52/146

Abstract: This application provides a communication method, apparatus, and system, to improve transmission performance in a communication process. The method includes: A terminal device determines a power control parameter of a PUSCH based on precoding indication information used by the PUSCH, where the precoding indication information includes n TPMIs, each TPMI corresponds to a set of power control parameters, at least two of the n TPMIs respectively correspond to different power control parameters, and each TPMI corresponds to some time-frequency resources occupied by the PUSCH, where n is a positive integer. The terminal device sends the PUSCH based on the power control parameter.

公开(公告)号：US11329850B2

公开(公告)日：2022-05-10

申请号：US17362065

申请日：2021-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyu Qu ,  Xianda Liu ,  Mingxin Gong ,  Kunpeng Liu

IPC: H04W4/00 ,  H04L27/26 ,  H04L5/00 ,  H04L27/20

Abstract: The present disclosure relates to signal processing methods and apparatus. One example method includes determining a first sequence {x(n)} based on a preset condition and a sequence {s(n)}, generating a reference signal of a first signal by using the first sequence, and sending the reference signal on a first frequency-domain resource. The preset condition is xn=y(n+M)mod K, where y n = A · e j × π × s n 8 , M∈{0, 1, 2, . . . , 5}, a length of the first sequence is K=6, n=0, 1, . . . , K−1, A is a non-zero complex number, and j=√{square root over (−1)}. The first signal is a signal modulated by using π/2 binary phase shift keying (BPSK). The first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, k=u+L*n+delta, L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.