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.

公开(公告)号：US20240072858A1

公开(公告)日：2024-02-29

申请号：US18502785

申请日：2023-11-06

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 provides a method for indicating a precoding vector, a method for determining a precoding vector, and a communications apparatus. The method includes: generating and sending, by a terminal device, first indication information; and determining, by a network device, 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：US20230261715A1

公开(公告)日：2023-08-17

申请号：US18304005

申请日：2023-04-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun HANG ,  Xiaohan WANG ,  Huangping JIN

IPC: H04B7/06

CPC classification number: H04B7/0626

Abstract: This application provides an information transmission method, an apparatus, and a device, which are applicable to the communication field, and are used to feed back information obtained based on channel information of different network devices, so as to improve performance gains and reduce performance loss. The method includes: The terminal device obtains at least one piece of channel information including large-scale information and small-scale information; performs normalization processing on the channel information to obtain at least one piece of first information and at least one piece of second information, where the first information is small-scale information obtained through normalization processing, and the second information is large-scale information obtained through normalization processing; and then sends channel state information including R pieces of first information obtained through quantization processing or including R pieces of first information obtained through quantization processing and R pieces of second information obtained through quantization processing.

公开(公告)号：US20230013510A1

公开(公告)日：2023-01-19

申请号：US17941430

申请日：2022-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin GE ,  Zhimeng ZHONG ,  Xiaohan WANG ,  Huangping JIN ,  Li FAN ,  Xiaoyan BI ,  Yiling YUAN

IPC: H04W72/04

Abstract: A method for indicating channel state information CSI measurement and a communication apparatus. A network device indicates, to a terminal device by using first indication information, one or more frequency domain units in a downlink reference signal resource that are used by the terminal device to obtain CSI. The terminal device determines, based on the first indication information, which frequency domain units in the downlink reference signal resource are used to obtain the CSI, and perform measurement in the frequency domain unit to obtain the CSI. The network device flexibly configures CSI measurement based on a system status, to control obtaining of the CSI. This helps the terminal device obtain the CSI more pertinently based on the indication in different cases.

公开(公告)号：US20220217567A1

公开(公告)日：2022-07-07

申请号：US17706385

申请日：2022-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Huangping JIN ,  Shibin GE ,  Xiaohan WANG ,  Xiaoyan BI

IPC: H04W24/10 ,  H04B7/06

Abstract: The disclosure provides channel measurement methods and communications apparatuses. One example method includes a terminal device that generates first indication information, and sends the first indication information to a network device. The first indication information indicates one or more component characteristics of a complete time-varying characteristic of a channel and a weighting coefficient of each component characteristic. The complete time-varying characteristic of the channel corresponds to a local time-varying characteristic of the channel. The local time-varying characteristic may be determined by the terminal device based on reference signals received for a plurality of times, and the complete time-varying characteristic may be determined based on the local time-varying characteristic.

公开(公告)号：US20210385008A1

公开(公告)日：2021-12-09

申请号：US17408941

申请日：2021-08-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun HANG ,  Shibin GE ,  Liuliu JI ,  Xiaohan WANG ,  Xiaoyan BI

IPC: H04L1/00

Abstract: A search space blind detection method and a communication apparatus. The method includes: a terminal receives indication information that corresponds to a first search space set and that is sent by a network device, where the indication information is used to indicate one or more search space groups, one search space group includes at least two search spaces having an association relationship, and at least one search space in one search space group belongs to the first search space set; and then, the terminal determines, based on the indication information, a quantity of blind detection times corresponding to the first search space set. The quantity of blind detection times corresponding to the first search space set is determined by considering an association relationship between a plurality of search spaces.

公开(公告)号：US20210337565A1

公开(公告)日：2021-10-28

申请号：US17370438

申请日：2021-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan WANG ,  Huangping JIN ,  Xiaoyan BI

IPC: H04W72/12 ,  H04W72/04

Abstract: This application provides a parameter configuration method and a communications apparatus. The method includes: receiving, by a terminal device, an indication of a first mapping relationship from a network device, where the first mapping relationship is a mapping relationship in a preconfigured first mapping relationship group, and the first mapping relationship group includes at least one mapping relationship, to indicate at least one correspondence between a reporting quantity of spatial domain vectors and a reporting quantity of frequency domain vectors; and determining, by the terminal device, the reporting quantity of spatial domain vectors and the reporting quantity of frequency domain vectors based on the first mapping relationship.

公开(公告)号：US20210288707A1

公开(公告)日：2021-09-16

申请号：US17337156

申请日：2021-06-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haicun HANG ,  Shibin GE ,  Hongzhe SHI ,  Xiaohan WANG ,  Liuliu JI ,  Xiaoyan BI

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04B17/336

Abstract: This application provides a channel measurement configuration method and a communications apparatus. The method includes: receiving, by a terminal device, a measurement configuration, where the measurement configuration includes a plurality of resource settings, and the plurality of resource settings include a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement; receiving, by the terminal device, channel state information reference signals CSI-RSs on resources configured in the plurality of resource settings; and generating, by the terminal device, a CSI group based on the CSI-RSs, where the CSI group includes one or more pieces of CSI. In embodiments of this application, a plurality of resource settings for channel measurement and a plurality of resource settings for interference measurement are associated in one report setting.

公开(公告)号：US20210168775A1

公开(公告)日：2021-06-03

申请号：US17172227

申请日：2021-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun HANG ,  Shibin GE ,  Xiaohan WANG ,  Xiaoyan BI

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: Methods, systems, and apparatus for downlink control information (DCI) detection are provided. In one aspect, a DCI detection method includes: receiving a configuration parameter that is used to configure at least one or more groups of candidate resources, each of the one or more groups of candidate resources carrying one piece of DCI, and in response to determining that one corresponding piece of DCI is blindly detected from one of the one or more groups of candidate resources, stopping the blind detection on the one of the one or more groups of candidate resources.

公开(公告)号：US20210058119A1

公开(公告)日：2021-02-25

申请号：US17094252

申请日：2020-11-10

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.