公开(公告)号：US20240048216A1

公开(公告)日：2024-02-08

申请号：US18486283

申请日：2023-10-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye WU ,  Liuliu JI ,  Huangping JIN

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/06968 ,  H04L5/0048 ,  H04L25/0226

Abstract: Embodiments of this application provide a communication method and a communication apparatus, to support flexible configuration of QCL information of different reference signal ports, improve a success rate of performing channel estimation or channel measurement on a transport layer by the reference signal port, and improve communication efficiency. In the method, a transmit end determines first indication information, where the first indication information is used to configure a first reference signal port, and the configuration indicates first quasi co-location QCL information of the first reference signal port; and then the transmit end sends the first indication information to a receive end.

公开(公告)号：US20230361836A1

公开(公告)日：2023-11-09

申请号：US18352896

申请日：2023-07-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yiling YUAN ,  Shibin GE ,  Li FAN ,  Jie WANG ,  Huangping JIN

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

CPC classification number: H04B7/0626 ,  H04L5/0048 ,  H04B7/0456 ,  H04B7/0639

Abstract: This application provides a channel information obtaining method and a related device. In the method, first indication information may be received, where the first indication information indicates one of a plurality of parameter configuration combinations of a reference signal, and the plurality of parameter configuration combinations are associated with a same codebook. A terminal device may feed back channel state information based on the indicated parameter configuration combination.

公开(公告)号：US20230122302A1

公开(公告)日：2023-04-20

申请号：US18068863

申请日：2022-12-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Mingzhe WANG ,  Xiang REN ,  Huangping JIN ,  Xiaoyan BI

IPC: H04W24/10 ,  H04W16/28 ,  H04L5/00

Abstract: Embodiments of this application provide a measurement reporting method and apparatus, to improve poor data transmission performance caused by inaccurate channel state information feedback. The method includes: performing channel measurement based on a downlink reference signal from a network device, and reporting a measurement result to the network device. The measurement result indicates T resource elements and a superposition coefficient, and the resource element is determined based on at least one of the following base vectors: a time domain base vector and a receive side spatial domain base vector, and T is an integer greater than 0. In embodiments of this application, a channel feature of a channel in an angle domain can be more accurately indicated by using the receive side spatial domain base vector, and a time variant feature of the channel can be reflected by using the time domain base vector.

公开(公告)号：US20230064117A1

公开(公告)日：2023-03-02

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: H04B7/0456 ,  H04L5/00 ,  H04L25/02

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：US20220416866A1

公开(公告)日：2022-12-29

申请号：US17887209

申请日：2022-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin GE ,  Huangping JIN ,  Xiaohan WANG ,  Yiling YUAN ,  Xiaoyan BI

IPC: H04B7/06 ,  H04B7/0456

Abstract: A channel state information feedback method includes: a terminal receives first indication information from a network device, and the terminal sends channel state information to the network device. The first indication information is used to indicate a type of a right multiplication matrix in a first codebook, and the first codebook satisfies a formula (I). W is the first codebook, W1 is a port selection matrix, (II) is a linear superposition coefficient matrix, Wf is the right multiplication matrix, and (III) is a conjugate transpose of Wf, and is used by the terminal to determine the channel state information based on the first codebook. According to the method, when there are a plurality of codebooks, the codebook used by the terminal to obtain the CSI can be clearly indicated.

公开(公告)号：US20220224568A1

公开(公告)日：2022-07-14

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: H04L25/02 ,  H04W56/00

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：US20220021425A1

公开(公告)日：2022-01-20

申请号：US17486478

申请日：2021-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan WANG ,  Huangping JIN ,  Xiaoyan BI

IPC: H04B7/0456 ,  H04L25/02

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：US20220014241A1

公开(公告)日：2022-01-13

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

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：US20210336665A1

公开(公告)日：2021-10-28

申请号：US17369513

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Xiaohan WANG ,  Xiaoyan BI

IPC: H04B7/0456

Abstract: The present disclosure relates to precoding vector indicating and determining methods and communications apparatus. In one example method, a terminal device generates first indication information, and sends the first indication information to a network device. The first indication information is used to indicate one or more frequency domain vectors and one or more weighting coefficients, where the one or more frequency domain vectors include a frequency domain vector reported for each of R frequency domain unit groups, the one or more weighting coefficients include a weighting coefficient reported for each of the R frequency domain unit groups, and a frequency domain vector and a weighting coefficient that are reported for an rth frequency domain unit group in the R frequency domain unit groups are used to construct a precoding vector corresponding to one or more frequency domain units in the rth frequency domain unit group.

公开(公告)号：US20210234583A1

公开(公告)日：2021-07-29

申请号：US17230523

申请日：2021-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan WANG ,  Huangping JIN ,  Xiaoyan BI

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

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.