公开(公告)号：US20240210528A1

公开(公告)日：2024-06-27

申请号：US18436738

申请日：2024-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai An ,  Anliang Yu ,  Shuai Wang ,  Sunjie Qiu ,  Wei Han

IPC: G01S7/481 ,  G01S7/4863 ,  G01S7/487 ,  G01S17/931

CPC classification number: G01S7/4816 ,  G01S7/4815 ,  G01S7/4863 ,  G01S7/487 ,  G01S17/931

Abstract: A receiving optical system includes a receiving lens group and a detection module. The receiving module is configured to receive an echo signal obtained by reflecting signal light by a target in a detection region, and a horizontal focal plane and a vertical focal plane of the echo signal are separated. The detection module is configured to perform optical-electrical conversion on the echo signal in order to obtain an electrical signal used to determine association information (such as a distance, a speed, or a grayscale) of the target.

公开(公告)号：US11445396B2

公开(公告)日：2022-09-13

申请号：US16674858

申请日：2019-11-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Han ,  Huangping Jin ,  Ye Wu ,  Xiaoyan Bi

IPC: H04W24/10 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04

Abstract: Embodiments of the present invention provide a channel measurement method and an apparatus. The method includes: for a to-be-measured frequency band that includes at least one reporting subband and 0 or more non-reporting subbands, obtaining channel state information of each reporting subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the at least one reporting subband is included in reporting subbands that are contiguous in frequency domain, or the at least one reporting subband is included in reporting subbands that are not contiguous in frequency domain; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of one or more of the at least one reporting subband.

公开(公告)号：US11239950B2

公开(公告)日：2022-02-01

申请号：US16697115

申请日：2019-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Han ,  Yong Liu ,  Shibin Ge ,  Huangping Jin ,  Xiaoyan Bi ,  Xiang Ren

IPC: H04L1/06 ,  H04L5/00 ,  H04B7/06 ,  H04L1/00

Abstract: An apparatus and method are provided for a quantity and size of subbands in a channel state information (CSI) reporting band for flexibility and reduced complexity of terminal addressing. The method includes: determining a channel state information subband size based on a bandwidth part (BWP), determining a quantity of channel state information subbands included in a channel state information reporting band based on (i) a carrier bandwidth (CC bandwidth), (ii) the BWP bandwidth or (iii) a channel state information reference signal (CSI-RS) bandwidth and the channel state information subband size. The method further includes determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks in an ending subband in the channel state information subband.

公开(公告)号：US10985824B2

公开(公告)日：2021-04-20

申请号：US16829389

申请日：2020-03-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huangping Jin ,  Peng Jiang ,  Wei Han ,  Peng Shang

IPC: H04B7/06

Abstract: A channel state information feedback method includes: generating, by a transmit-end device, codebook indication information of K transport layers, where K is an integer greater than or equal to 1; and for each of at least one of the K transport layers, the codebook indication information includes narrowband superposition coefficients of N sub-bands of the layer, where a quantity of the narrowband superposition coefficients of the N sub-bands is less than R(L−1)*N, N is an integer greater than or equal to 2, R is a quantity of polarization directions and R is an integer greater than or equal to 1, and L is a quantity of pieces of beam information used by the K transport layers and L is an integer greater than or equal to 2; and sending, by the transmit-end device, the codebook indication information.

公开(公告)号：US10979113B2

公开(公告)日：2021-04-13

申请号：US17005921

申请日：2020-08-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Wei Han ,  Peng Shang ,  Xiaoyan Bi

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/04 ,  H04B7/06

Abstract: The present disclosure relates to channel state information (CSI) receiving methods and apparatus. One example method includes transmitting a pilot, and receiving feedback of W1 and W2 for each transport layer which are determined based on the pilot, where W1 and W2 are used to form a combined vector W for each transport layer, W=W1×W2, W1=[b1 b2 . . . bK], bi is a vector to be combined, W2=[X1 X2 . . . XK]T, Xi is a weighting coefficient corresponding to bi, K is a quantity of vectors in W1, K is a positive integer which is greater than 1, i is an integer, 1≤i≤K, and quantities of bits for feeding back at least two elements in W2 are different from each other.

公开(公告)号：US10917149B2

公开(公告)日：2021-02-09

申请号：US16506995

申请日：2019-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Han ,  Lu Wu ,  Huangping Jin

IPC: H04B7/0456 ,  H04B7/06

Abstract: Embodiments of the present application provide a parameter indication method and parameter determining method, a receive device, and a transmit device. The parameter indication method includes: generating indication information for each of a plurality of antenna panels, where the indication information is used to indicate an adjustment parameter of the antenna panel, and the adjustment parameter includes at least one of an amplitude adjustment parameter and a phase adjustment parameter; and sending the indication information. The embodiments of the present application further provide a parameter determining method, a receive device, and a transmit device. In the technical solutions provided in the embodiments of the present application, adjustment parameters of the plurality of antenna panels are fed back to adjust the plurality of antenna panels, so that a precoding vector constructed based on the plurality of antenna panels is more accurate.

公开(公告)号：US20200260312A1

公开(公告)日：2020-08-13

申请号：US16832290

申请日：2020-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Huangping Jin ,  Xiaoyan Bi ,  Wei Han

IPC: H04W24/10 ,  H04W28/06 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel measurement method. The method includes: obtaining, for a to-be-measured frequency band including at least one reporting subband and at least one missing subband, channel state information of each reporting subband and channel state information of each missing subband, where the channel state information of each reporting subband is obtained based on channel estimation, and the channel state information of each missing subband is obtained according to a reference rule with reference to channel state information of a reporting subband that is indicated by the reference rule and that is in the at least one reporting subband; and sending a measurement report of the to-be-measured frequency band to a transmit end device, where the measurement report includes the channel state information of each reporting subband in the at least one reporting subband.

公开(公告)号：US20200244330A1

公开(公告)日：2020-07-30

申请号：US16829389

申请日：2020-03-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huangping Jin ,  Peng Jiang ,  Wei Han ,  Peng Shang

IPC: H04B7/06

Abstract: A channel state information feedback method includes: generating, by a transmit-end device, codebook indication information of K transport layers, where K is an integer greater than or equal to 1; and for each of at least one of the K transport layers, the codebook indication information includes narrowband superposition coefficients of N sub-bands of the layer, where a quantity of the narrowband superposition coefficients of the N sub-bands is less than R(L−1)*N, N is an integer greater than or equal to 2, R is a quantity of polarization directions and R is an integer greater than or equal to 1, and L is a quantity of pieces of beam information used by the K transport layers and L is an integer greater than or equal to 2; and sending, by the transmit-end device, the codebook indication information.

公开(公告)号：US10608857B2

公开(公告)日：2020-03-31

申请号：US16406876

申请日：2019-05-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongzhe Shi ,  Wei Han ,  Yi Qin ,  Jianqin Liu ,  Peng Jiang

IPC: H04L12/28 ,  H04L27/26 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04W80/08 ,  H04J1/16

Abstract: This application discloses a reference signal configuration method and apparatus. Before a network device sends reference signals aperiodically, the network device sends configuration information to a terminal device, where the configuration information is used to indicate a timeslot offset of one or more reference signal resource sets. Therefore, the network device can flexibly send reference signals in different timeslots, thereby reducing a quantity of times of reference signal triggering and measurement result reporting, and improving efficiency of a communications system.

公开(公告)号：US10594369B2

公开(公告)日：2020-03-17

申请号：US16504354

申请日：2019-07-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Han ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04B7/0417 ,  H04B7/06

Abstract: Embodiments of the present invention provide a channel information feedback method, a channel information determining method, a receive end device, and a transmit end device. The channel information feedback method includes: generating at least one piece of description information for each of a plurality of subbands included in a wideband, where each piece of description information is used to describe a description vector of a channel matrix corresponding to the subband, the description information includes at least one of a vector parameter and a weighting parameter; and sending the at least one piece of description information. The embodiments of the present invention further provide a channel information determining method, a receive end device, and a transmit end device. A precoding effect can be improved when precoding is performed based on the description vector fed back in the technical solutions provided in the embodiments of the present invention.