公开(公告)号：US20240405834A1

公开(公告)日：2024-12-05

申请号：US18805458

申请日：2024-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06

Abstract: This application provides a precoding matrix indicating and determining method and a communications apparatus. The method includes: generating, by a terminal device, first indication information, and sending the first indication information to a network device, where the first indication information indicates a spatial domain vector, a frequency domain vector, and a weighting coefficient that are used to construct a precoding matrix. When a value of a rank Z is greater than 2, Z transport layers include at least one first-type transport layer, and a maximum quantity M1 of frequency domain vectors reported for the first-type transport layer satisfies: M 1 = ⌊ p 1 × N 3 R ⌋ , wherein p1 is a preconfigured coefficient for determining the maximum quantity of frequency domain vectors reported for the first-type transport layer, 1≥p1>0, R is a preconfigured value, N3 is a length of a frequency domain vector, Z>2, and R, N3, and Z are all positive integers.

公开(公告)号：US12137373B2

公开(公告)日：2024-11-05

申请号：US17468269

申请日：2021-09-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun Hang ,  Shibin Ge ,  Xiaohan Wang ,  Liuliu Ji ,  Xiaoyan Bi

IPC: H04W28/06 ,  H04W72/044

Abstract: This disclosure provides a method for determining a transport block size (TBS) of a transport block and a communications apparatus. The method includes: A communications apparatus determines a data block size corresponding to each of n code words, where the n code words correspond to a same transport block, and n is an integer greater than 1; and then, the communications apparatus determines a TBS of the transport block based on a data block size of one or more of the n code words.

公开(公告)号：US20240356615A1

公开(公告)日：2024-10-24

申请号：US18759146

申请日：2024-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Li ,  Xiaohan Wang ,  Huangping Jin

IPC: H04B7/06

CPC classification number: H04B7/0639 ,  H04B7/0617 ,  H04B7/0634

Abstract: This application discloses a channel state information feedback method and apparatus, a medium, and a program product. A terminal obtains a long-period reporting amount of a precoding matrix indicator (PMI) in channel state information. N1 characteristic subspace beams are represented by a linear combination of M1 DFT base vectors in a first group of DFT base vectors, and N2 characteristic subspace beams are represented by a linear combination of M2 DFT base vectors in a second group of DFT base vectors. The long-period reporting amount includes indication information of the M1 DFT base vectors, indication information of the M2 DFT base vectors, a linear combination coefficient of the M1 DFT base vectors, and a linear combination coefficient of the M2 DFT base vectors. The terminal sends the long-period reporting amount of the PMI to an access network device.

公开(公告)号：US12015464B2

公开(公告)日：2024-06-18

申请号：US17541997

申请日：2021-12-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiang Ren ,  Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0639

Abstract: A channel measurement method and a communications apparatus, the method including generating, by a terminal device, first indication information, where the first indication information indicates one or more component features of a time-varying feature, and further indicates a weighting coefficient of each component feature of the one or more component features, and the one or more component features and the weighting coefficient of each component feature represent the time-varying feature of a channel, and sending, by the terminal device, the first indication information to a network device.

公开(公告)号：US12003340B2

公开(公告)日：2024-06-04

申请号：US17189823

申请日：2021-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin Ge ,  Haicun Hang ,  Xiaohan Wang ,  Liuliu Ji ,  Xiaoyan Bi

IPC: H04W4/00 ,  H04L1/1867 ,  H04L5/00

CPC classification number: H04L1/1887 ,  H04L5/0055

Abstract: A terminal device generates at least two pieces of HARQ-ACK information based on a plurality of received PDSCHs, and sends the at least two pieces of HARQ-ACK information to a network device. Each piece of HARQ-ACK information includes an ACK or a NACK fed back for one or more PDSCHs. When a piece of HARQ-ACK information includes ACKs or NACKs fed back for a plurality of PDSCHs, at least one of the following of the plurality of PDSCHs corresponding to the HARQ-ACK information is the same: port groups to which ports of DMRSs used to demodulate the PDSCHs belong, identifiers of enabled transport blocks carried in the plurality of PDSCHs, and PDCCH configurations of a plurality of PDCCHs used to schedule the plurality of PDSCHs.

公开(公告)号：US20230379020A1

公开(公告)日：2023-11-23

申请号：US18362982

申请日：2023-08-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Haicun Hang

IPC: H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04L5/0048

Abstract: This disclosure provides a precoding method and apparatus, to improve precision of an uplink precoding matrix. The method includes: receiving a plurality of precoded downlink reference signals; measuring the plurality of downlink reference signals and determining an uplink precoding vector corresponding to an uplink data stream. This can reduce signal interference between multiple users, and improve signal quality.

公开(公告)号：US20230239028A1

公开(公告)日：2023-07-27

申请号：US18157808

申请日：2023-01-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Haicun Hang ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0639

Abstract: A channel measurement method and a communication apparatus are provided. The method includes: generating channel information, where the channel information indicates one or more receive beam vectors and one or more weighting coefficients, each of the one or more weighting coefficients corresponds to one receive beam vector, the one or more receive beam vectors and the one or more weighting coefficients corresponding to the one or more receive beam vectors are used to determine a channel of at least one frequency domain unit between a terminal device and a network device, the one or more receive beam vectors are selected from a receive beam vector set, and the receive beam vector set is determined based on a predefined base vector set; and sending the channel information.

公开(公告)号：US11139869B2

公开(公告)日：2021-10-05

申请号：US16938582

申请日：2020-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiang Ren ,  Wei Han ,  Xiaoyan Bi

IPC: H04L25/02 ,  H04B7/0417 ,  H04B7/0456

Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information, where the indication information is used to indicate M N-dimensional precoding vectors, each precoding vector is applied to one of M frequency bands, the M N-dimensional precoding vectors form a space-frequency matrix, and the space-frequency matrix is generated by performing weighted combination on a plurality of space-frequency component matrices, where the space-frequency matrix is an M×N-dimensional space-frequency vector or an X×Y space-frequency matrix, X and Y are one and the other of M and N, M≥1, N≥2, and both M and N are integers.

公开(公告)号：US20210184803A1

公开(公告)日：2021-06-17

申请号：US17189823

申请日：2021-03-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin Ge ,  Haicun Hang ,  Xiaohan Wang ,  Liuliu Ji ,  Xiaoyan Bi

IPC: H04L1/18 ,  H04L5/00

Abstract: A terminal device generates at least two pieces of HARQ-ACK information based on a plurality of received PDSCHs, and sends the at least two pieces of HARQ-ACK information to a network device. Each piece of HARQ-ACK information includes an ACK or a NACK fed back for one or more PDSCHs. When a piece of HARQ-ACK information includes ACKs or NACKs fed back for a plurality of PDSCHs, at least one of the following of the plurality of PDSCHs corresponding to the HARQ-ACK information is the same: port groups to which ports of DMRSs used to demodulate the PDSCHs belong, identifiers of enabled transport blocks carried in the plurality of PDSCHs, and PDCCH configurations of a plurality of PDCCHs used to schedule the plurality of PDSCHs.

公开(公告)号：US20210167835A1

公开(公告)日：2021-06-03

申请号：US17171714

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/10 ,  H04B7/0456

Abstract: A precoding matrix indicating and determining method, including determining a precoding matrix indicator (PMI) having R groups of space-frequency information corresponding to R transmission layers, where the R groups of space-frequency information are used to determine a precoding matrix of each subband, and an rth group of space-frequency information in the R groups indicates P×L space domain vectors corresponding to an rth transmission layer in the R transmission layers, K frequency domain vectors corresponding to the rth transmission layer, and P×L×K coefficients corresponding to the rth transmission layer, where each of the P×L×K coefficients indicates a linear superposition coefficient of a vector operation result of a P×L space domain vectors and one of the K frequency domain vectors, R is a quantity of transmission layers, P is a quantity of polarization directions, and R, r, P, L, and K are all positive integers, and sending the PMI.