公开(公告)号：US20210410006A1

公开(公告)日：2021-12-30

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 ,  H04W72/04

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：US12244381B2

公开(公告)日：2025-03-04

申请号：US17852957

申请日：2022-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Ren ,  Huangping Jin ,  Xiaohan Wang ,  Shibin Ge ,  Yiling Yuan

IPC: H04B7/06

Abstract: This application describes a channel information feedback method and a communication apparatus. The method includes a terminal device that receives configuration information sent by a network device, where the configuration information is used to configure a feedback mode of channel information. The terminal device may feed back current channel information to the network device when the feedback mode configured by using the configuration information is a first mode. The terminal device may alternatively feeds back predicted channel information to the network device when the feedback mode configured by using the configuration information is a second mode. System performance is therefore improved by the method described in this application because channel information feedback requirements in different scenarios can be met. In particular, a problem that data transmission performance deteriorates because channel information expires in a moving scenario can be resolved by feeding back the predicted channel information.

公开(公告)号：US20250015852A1

公开(公告)日：2025-01-09

申请号：US18887660

申请日：2024-09-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ting Li ,  Xiaohan Wang ,  Huangping Jin

IPC: H04B7/06

Abstract: This application provides a channel state information (CSI) transmission method, a communication apparatus, and a communication device. The method includes: obtaining CSI corresponding to N port groups, where the CSI includes first CSI corresponding to each of the N port groups, and N is an integer greater than 1; and sending first information and second information, where the first information includes first indication information, the first indication information indicates that the second information includes first CSI corresponding to each of K port groups, the N port groups include the K port groups, and K is a positive integer less than N.

公开(公告)号：US20240340046A1

公开(公告)日：2024-10-10

申请号：US18749286

申请日：2024-06-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ting Li ,  Ruiqi Ma ,  Kai Chen ,  Xiaohan Wang ,  Huangping Jin

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0456 ,  H04B7/0632

Abstract: Embodiments of this application provide a channel information reporting method and an apparatus. The method includes: A communication apparatus measures a plurality of reference signals from a plurality of radio access network devices, and determines first delay information and first channel information based on the plurality of reference signals; performs delay compensation on the first channel information based on the first delay information, to determine second channel information; determines a precoding matrix indicator (PMI) based on the second channel information, where the PMI indicates the second channel information; and reports the first delay information and the PMI.

公开(公告)号：US12113740B2

公开(公告)日：2024-10-08

申请号：US17514268

申请日：2021-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04L5/0051 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Example communication methods and communications apparatus are described. One example method include: receiving downlink control information (DCI), where the DCI indicates N demodulation reference signal (DMRS) ports. The N DMRS ports correspond to each of M physical downlink shared channel (PDSCH) transmission units, at least two of the M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M are integers greater than or equal to 2. M PDSCHs are received based on the DCI.

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：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：US20230299834A1

公开(公告)日：2023-09-21

申请号：US18309197

申请日：2023-04-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaohan Wang ,  Shengwu Huang

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0639 ,  H04B7/0478

Abstract: Embodiments of the present disclosure provide a precoding matrix indication method, user equipment, and an access device. The precoding matrix indication method includes: generating indication information, where the indication information indicates KNZ - v non-zero weighting coefficients, the KNZ - v non-zero weighting coefficients belong to KNZ non-zero weighting coefficients, v is a quantity of transport layers, the KNZ non-zero weighting coefficients are for constructing a precoding matrix, and the precoding matrix is constructed based on at least the KNZ non-zero weighting coefficients, m spatial domain vectors, and n frequency domain vectors, where the indication information is generated in a first manner when a first preset condition is met, or the indication information is generated in a second manner when a second preset condition is met; and sending the indication information.

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.