公开(公告)号：US12088384B2

公开(公告)日：2024-09-10

申请号：US17513905

申请日：2021-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06

CPC classification number: H04B7/0639 ,  H04B7/0626 ,  H04B7/0634

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：US20240283513A1

公开(公告)日：2024-08-22

申请号：US18650632

申请日：2024-04-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Jianglei Ma ,  Wen Tong ,  Peiying Zhu

IPC: H04B7/06 ,  H04B17/391

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B17/3911

Abstract: Aspects of the present disclosure enable the determination of beamforming information and channel information for communication between a transmitter and receiver by using a propagation path map. The propagation path map may provide an association between a location of the receiver and channel characteristics between the transmitter and the receiver via a direct propagation path and possible reflection propagation paths. The propagation path map may be used to obtain a more accurate location of the receiver, AoA at the transmitter and/or receiver, AoD at the transmitter, and/or receiver and other sensing information for beamforming and improving the RF propagation map. The association between a location of the receiver and channel characteristics between the transmitter and the receiver may then aid in performing beam measurements and/or channel measurements.

公开(公告)号：US11968675B2

公开(公告)日：2024-04-23

申请号：US17197227

申请日：2021-03-10

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/21 ,  H04L1/1867 ,  H04L5/00 ,  H04W24/10 ,  H04W72/23

CPC classification number: H04W72/21 ,  H04L1/1896 ,  H04L5/0057 ,  H04W24/10 ,  H04W72/23

Abstract: This application provides a UCI sending and receiving method and a communications apparatus. In the method, an association relationship between a PUCCH and a PUSCH is established, so that when resources of the PUSCH and the PUCCH overlap, a terminal device can determine UCI on which PUCCHs can be transmitted by multiplexing the resource of the PUSCH. A network device may receive the UCI on the PUSCH. Because the network device may know in advance which PUCCHs and PUSCHs are sent to the network device, the network device can demodulate and decode a signal on the received PUSCHs, to successfully obtain UCI. The network device can make a proper decision based on the UCI.

公开(公告)号：US20230421328A1

公开(公告)日：2023-12-28

申请号：US18464886

申请日：2023-09-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Ren ,  Yong Liu ,  Shibin Ge ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04L5/02

CPC classification number: H04L5/0051 ,  H04L5/0092 ,  H04L5/023 ,  H04L5/10

Abstract: Embodiments of this application disclose a method and an apparatus for transmitting a DMRS, and relate to the field of communications technologies. The method and the apparatus are applicable to an NR system. The method for transmitting a DMRS may include: determining a time-frequency resource used to carry a DMRS; and then sending the DMRS by using the time-frequency resource.

公开(公告)号：US11658709B2

公开(公告)日：2023-05-23

申请号：US17483419

申请日：2021-09-23

Applicant: Huawei Technologies Co., Ltd.

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

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

CPC classification number: H04B7/0456 ,  H04L25/0204 ,  H04B7/0417

Abstract: Embodiments of this application provide a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method includes: 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：US11652518B2

公开(公告)日：2023-05-16

申请号：US17486478

申请日：2021-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

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

CPC classification number: H04B7/0456 ,  H04L25/0202

Abstract: This application discloses a channel estimation method and apparatus, and relates to the field of communications technologies, to help reduce indication overheads. The method may include: generating and sending indication information. The indication information is used to indicate K N-dimensional spatial-domain component vectors, L M-dimensional frequency-domain component vectors, and a weight matrix, to indicate to construct an M×N-dimensional spatial-frequency matrix, or an M×N or N×M spatial-frequency matrix.

公开(公告)号：US11456786B2

公开(公告)日：2022-09-27

申请号：US17230523

申请日：2021-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: This disclosure discloses methods and apparatuses for signal processing. In an implementation, a method comprises: generating first indication information, wherein the first indication information indicates L1 space domain vectors in a space domain vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices, wherein a precoding vector of one or more frequency domain units is determined by a weighted sum of the T1 space-frequency component matrices, wherein the L1 space domain vectors and the K1 frequency domain vectors correspond to M1 space-frequency component matrices that comprise the T1 space-frequency component matrices, wherein each of the M1 space-frequency component matrices is uniquely determined by a different combination of one of the L1 space domain vectors and one of the K1 frequency domain vectors; and sending the first indication information.

公开(公告)号：US20220174524A1

公开(公告)日：2022-06-02

申请号：US17672531

申请日：2022-02-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun Hang ,  Liuliu Ji ,  Hongzhe Shi ,  Xiaoyan Bi

IPC: H04W24/08 ,  H04W72/04 ,  H04W72/06

Abstract: This disclosure provides a communication method to implement a function of a hybrid automatic repeat request (HARQ) feedback codebook in a multi-station scenario. A terminal device receives a configuration group identifier, determines a physical downlink shared channel (PDSCH) reception occasion corresponding to the configuration group identifier, and transmits feedback information of the PDSCH reception occasion based on the configuration group identifier corresponding to the PDSCH reception occasion and according to a predetermined rule of feedback sorting.

公开(公告)号：US20220173866A1

公开(公告)日：2022-06-02

申请号：US17671575

申请日：2022-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingzhe Wang ,  Hongzhe Shi ,  Xiang Ren ,  Liuliu Ji ,  Haicun Hang ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04J13/00 ,  H04J3/02

Abstract: A method and apparatus are provided for determining a transmission mode. A method embodiment includes obtaining, by a terminal device, configuration indication information, the configuration indication information comprising one or more of: DMRS indication information, repeated-transmission indication information, or transmission configuration indication information; and determining a transmission mode based on the configuration indication information, the transmission mode is one or more of: a space division multiplexing mode, a frequency division multiplexing mode, or a time division multiplexing mode.

公开(公告)号：US11271787B2

公开(公告)日：2022-03-08

申请号：US16811139

申请日：2020-03-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Wang ,  Yan Chen ,  Xiuqiang Xu ,  Lei Zhang ,  Xiaoyan Bi

IPC: H04W76/27 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W80/02

Abstract: This application provides a method for generating a pilot signal, including: obtaining, by a terminal device, a correlation identifier and a port number; determining, by the terminal device, a pilot sequence based on the correlation identifier; and generating, by the terminal device, the pilot signal based on the pilot sequence and the port number. The correlation identifier indicates how a pilot sequence is determined and whether the pilot sequence is correlated with a time slot.