公开(公告)号：US11336419B2

公开(公告)日：2022-05-17

申请号：US16887800

申请日：2020-05-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04W24/06 ,  H04B7/06 ,  H04B17/318

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US11184062B2

公开(公告)日：2021-11-23

申请号：US16937561

申请日：2020-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Jianghua Liu

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04L7/00 ,  H04B7/0456 ,  H04B7/0417

Abstract: Embodiments of the present invention provide a method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of three matrices being W1, Z, and W2, that is, W=W1ZW2, where both W1 and Z are block diagonal matrices, W1=a formula (I), Z=a formula (II), each of W1 and Z includes at least one block matrix, that is, NB≥1, and each column of each block matrix Zi in the matrix Z has the following structure formula (III); and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, and is used by the base station to obtain the selected precoding matrix W according to the PMI.

公开(公告)号：US20200295908A1

公开(公告)日：2020-09-17

申请号：US16887800

申请日：2020-05-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04W24/06 ,  H04B7/06

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US10715239B2

公开(公告)日：2020-07-14

申请号：US16599877

申请日：2019-10-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Leiming Zhang

IPC: H04B7/06 ,  H04N19/124 ,  G06F17/16 ,  H04B7/0413

Abstract: The present disclosure relates to methods for feeding back channel state information, user equipment, and base stations. One example method includes receiving a reference signal from a base station, selecting a precoding matrix W from a codebook according to the reference signal, and sending a precoding matrix indicator (PMI) to the base station, where the PMI corresponds to the selected precoding matrix W.

公开(公告)号：US10673599B2

公开(公告)日：2020-06-02

申请号：US16034883

申请日：2018-07-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04W24/06 ,  H04B7/06 ,  H04B17/318

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.

公开(公告)号：US10523291B2

公开(公告)日：2019-12-31

申请号：US16233444

申请日：2018-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou ,  Yong Wu ,  Liang Xia

IPC: H04B7/04 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: A method for determining a precoding matrix indicator, user equipment, and a base station are disclosed in embodiments of the present invention. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set is associated with a user equipment-specific matrix or matrix set; selecting a precoding matrix based on the first reference signal set, where the precoding matrix is a function of the user equipment-specific matrix or matrix set; and sending a precoding matrix indicator to the base station, where the precoding matrix indicator corresponds to the selected precoding matrix. In the embodiments of the present invention, CSI feedback precision can be improved without excessively increasing feedback overhead, thereby improving system performance.

公开(公告)号：US10454640B2

公开(公告)日：2019-10-22

申请号：US15255953

申请日：2016-09-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04L5/00 ,  H04B7/0456 ,  H04B7/06 ,  H04B17/309 ,  H04B17/382

Abstract: The present application discloses a method for reporting channel state information, user equipment, and a base station. The method includes: receiving a first reference signal set sent by a base station, where the first reference signal set includes at least two reference signals; sending first CSI to the base station, where the first CSI is determined according to the first reference signal set, and the first CSI includes a first RI and/or a first PMI, where the first PMI is used to indicate a first precoding matrix; receiving a second reference signal set sent by the base station, where the second reference signal set is determined based on the first CSI, and the second reference signal set includes at least one reference signal; and sending second CSI to the base station, where the second CSI is determined according to the second reference signal set.

公开(公告)号：US10224996B2

公开(公告)日：2019-03-05

申请号：US15289277

申请日：2016-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/06 ,  H04B7/04 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12 ,  H04B7/0413 ,  H04L5/00 ,  H04W84/04

Abstract: Embodiments of the present disclosure disclose a method for reporting channel state information, including receiving a sounding signal set sent by the base station and determining a reference signal resource configuration index according to the sounding signal set, where the reference signal resource configuration index is used to indicate a reference signal resource configuration in reference signal resource configuration set information. The method also includes receiving a reference signal set sent by the base station, where the reference signal set corresponds to the reference signal resource configuration and determining channel state information according to the reference signal set. Additionally, the method includes sending the reference signal resource configuration index and the channel state information to the base station.

公开(公告)号：US20190052324A1

公开(公告)日：2019-02-14

申请号：US16164719

申请日：2018-10-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jianguo Wang ,  Yongxing Zhou

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06

Abstract: The present invention relates to a method for determining a precoding matrix indicator, a user equipment (UE), a base station (e.g., eNB), and a system. The method includes: receiving a reference signal sent by a base station; selecting, based on the reference signal, a precoding matrix from a codebook, where a precoding matrix W included in the codebook is a product of two matrices W1 and W2, where W1 is a block diagonal matrix, where each block matrix is a Kronecker product of a matrix Ai and a matrix Bi; and sending a precoding matrix indicator PMI to the base station, where the PMI corresponds to the selected precoding matrix, so that the base station obtains the precoding matrix according to the PMI.

公开(公告)号：US10027463B2

公开(公告)日：2018-07-17

申请号：US14754273

申请日：2015-06-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianguo Wang ,  Jianghua Liu ,  Qiang Wu

IPC: H04L5/00 ,  H04B7/06 ,  H04B17/318 ,  H04W24/06

Abstract: A reference signal measurement method, a reference signal sending method, a user equipment, and a base station are provided. According to solutions in the embodiments of the present application, a user equipment determines reference signal resource configuration, which includes reference signal port configuration, reference signal subframe configuration, and reference signal configuration, and a quantity of ports configured in the reference signal port configuration is N; receives a reference signal according to the reference signal resource configuration; and performs measurement based on the received reference signal to obtain channel state information and/or signal quality information. In the embodiments of the present invention, a quantity of ports configured in the reference signal port configuration is N; and a quantity of supported ports may vary with different values of N.