公开(公告)号：US11848729B2

公开(公告)日：2023-12-19

申请号：US17900501

申请日：2022-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

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

CPC classification number: H04B7/0469 ,  H04B7/0626 ,  H04L5/0003

Abstract: This application discloses methods and apparatuses for determining precoding vector. One example method includes: determining, by a network apparatus, a precoding vector of one or more frequency domain units based on the first indication information. The first indication information is used to indicate L1 beam vectors in a beam vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices. A weighted sum of the T1 space-frequency component matrices is used to determine a precoding vector of each frequency domain unit. The T1 space-frequency component matrices are selected from M1 space-frequency component matrices corresponding to the L1 beam vectors and the K1 frequency domain vectors, each space-frequency component matrix is uniquely determined by one beam vector and one frequency domain vector.

公开(公告)号：US11824801B2

公开(公告)日：2023-11-21

申请号：US17535285

申请日：2021-11-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong Liu ,  Xiaoyan Bi ,  Leiming Zhang

IPC: H04L5/00 ,  H04W76/27 ,  H04L25/02 ,  H04W72/23

CPC classification number: H04L5/0041 ,  H04L5/0005 ,  H04L25/0204 ,  H04W72/23 ,  H04W76/27

Abstract: Embodiments of this application disclose a parameter configuration method and apparatus, relate to the field of communications technologies, and specifically provide a method and an apparatus for setting a resource unit bundling size, to help improve accuracy of a channel estimation result. The method may include: generating parameter configuration signaling, and sending the parameter configuration signaling. The parameter configuration signaling is used to indicate the resource unit bundling size. The resource unit bundling size may be applied to at least two inconsecutive time-frequency resources in frequency domain, and each time-frequency resource includes at least one consecutive resource unit in frequency domain; or may be applied to at least two inconsecutive time-frequency resources in time domain, and each time-frequency resource includes at least one consecutive resource unit in time domain.

公开(公告)号：US11818714B2

公开(公告)日：2023-11-14

申请号：US16986167

申请日：2020-08-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaohan Wang ,  Yong Liu ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W72/1278 ,  H04L1/1812 ,  H04W72/23

Abstract: A transmission control method includes: receiving N pieces of transmission control information; and generating, based on the N pieces of transmission control information, transmission feedback information corresponding to transport blocks respectively scheduled by using the N pieces of transmission control information. Transport blocks can be accurately distinguished based on different effective transmission parameter group fields, and an effective feedback is provided.

公开(公告)号：US11811471B2

公开(公告)日：2023-11-07

申请号：US17982239

申请日：2022-11-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhimeng Zhong ,  Huangping Jin ,  Haifan Yin ,  Xiaoyan Bi ,  Li Fan

IPC: H04W72/23 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202 ,  H04W72/23

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information indicates P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US11784853B2

公开(公告)日：2023-10-10

申请号：US17707323

申请日：2022-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Shibin Ge ,  Zhimeng Zhong ,  Yong Liu ,  Xiaoyan Bi ,  Li Fan

IPC: H04B17/364 ,  H04L25/02 ,  H04W56/00

CPC classification number: H04L25/0228 ,  H04W56/0055

Abstract: Example channel measurement methods and a communication apparatus are described. One example method include receiving a precoded reference signal and indication information by a terminal device, where the indication information is used to indicate a relative delay between a first delay and a second delay, and the first delay and the second delay are determined through uplink channel measurement. The terminal device performs channel measurement based on the precoded reference signal and the indication information.

公开(公告)号：US11784753B2

公开(公告)日：2023-10-10

申请号：US17349033

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaoyan Bi ,  Hongzhe Shi

IPC: H04L1/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L1/0071 ,  H04L1/0005 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2605 ,  H04L5/0007

Abstract: Embodiments of this application provide data transmission methods and apparatuses. One method includes: receiving, by a communications apparatus, indication information from a network device, wherein the indication information indicates a data distribution selected from a first data distribution and a second data distribution; performing, by the communications apparatus, data transmission with the network device based on the data distribution; wherein the data distribution indicates a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, and wherein the one or more OFDM symbols are consecutive in time-domain.

公开(公告)号：US20230308242A1

公开(公告)日：2023-09-28

申请号：US18161776

申请日：2023-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liuliu Ji ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04B7/01

CPC classification number: H04L5/0051 ,  H04B7/01

Abstract: This application provides a quasi co-location (QCL) indication method and a related device, and may be applied to coordinated multistation transmission. In the method, a terminal receives QCL indication information, where the QCL indication information indicates that time-frequency spread information of a demodulation reference signal (DMRS) is associated with time-frequency spread information of N tracking reference signals (TRSs) (or a TRS corresponding to the DMRS) and that delay-frequency offset information of the DMRS is associated with delay-frequency offset information of M TRSs.

公开(公告)号：US11750326B2

公开(公告)日：2023-09-05

申请号：US17147837

申请日：2021-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Xiaoyan Bi

IPC: H04L1/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04L1/0668 ,  H04L5/0048 ,  H04L27/2613 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: A terminal device receives a DMRS and data from a network device. The DMRS and the data undergo Alamouti coding in space domain and frequency domain, or the DMRS and the data undergo Alamouti coding in space domain and time domain, and a DMRS obtained through the Alamouti coding is mapped to a first DMRS port and a second DMRS port. A modulation symbol of the first DMRS port is related to a modulation symbol of the second DMRS port. The terminal device demodulates the data based on the DMRS. Therefore, the DMRS corresponds to a transmission scheme of the data, to help the terminal device demodulate the data. This can reduce interference estimation complexity of the terminal device.

公开(公告)号：US11722968B2

公开(公告)日：2023-08-08

申请号：US17569262

申请日：2022-01-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong Liu ,  Xiang Ren ,  Xiaoyan Bi

IPC: H04W52/18 ,  H04W52/32 ,  H04W52/14

CPC classification number: H04W52/325 ,  H04W52/146

Abstract: Example communication methods and communications apparatus are described. One example method includes determining power of a demodulation reference signal (DMRS) by a terminal device. The terminal device sends the DMRS based on the determined power. In embodiments of this application, the power of the DMRS can be flexibly determined for different communication statuses.

公开(公告)号：US11689256B2

公开(公告)日：2023-06-27

申请号：US17347903

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhimeng Zhong ,  Huangping Jin ,  Haifan Yin ,  Xiaoyan Bi ,  Li Fan

IPC: H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04L25/02 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202 ,  H04W72/23

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.