公开(公告)号：US10212666B2

公开(公告)日：2019-02-19

申请号：US15462516

申请日：2017-03-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Dageng Chen ,  Rongdao Yu

IPC: H04W52/02 ,  H04W8/22

Abstract: Disclosed is a UE and a method for controlling the UE. The UE includes: an input/output (I/O) module, configured to display an intelligent-shutdown-mode setting interface, where the intelligent-shutdown-mode setting interface includes a setting option for shutting down/starting a radio frequency chain of the UE, obtain setting information of the user on the intelligent-shutdown-mode setting interface, and send the setting information to an intelligent shutdown module; the intelligent shutdown module, configured to receive the setting information sent by the I/O module, modify wireless transmission capability report information of the UE according to the setting information, send modified wireless transmission capability report information to a communications module, and shut down/start the radio frequency chain of the UE; and the communications module, configured to receive the modified wireless transmission capability report information that is sent by the intelligent shutdown module, and send the modified wireless transmission capability report information to a base station.

公开(公告)号：US12267135B2

公开(公告)日：2025-04-01

申请号：US17486536

申请日：2021-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Yongping Zhang ,  Huangping Jin ,  Xiang Gao ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0417

Abstract: The present disclosure relates to communication methods and communications apparatus. One example method includes determining a plurality of frequency domain units on which reporting of a precoding matrix indicator (PMI) is based in reporting bandwidth. The plurality of frequency domain units include one or more first frequency domain units and third frequency domain units obtained by dividing one or more second frequency domain units. A granularity of the first frequency domain unit is less than a preconfigured first granularity, a granularity of the second frequency domain unit is a first granularity, and a granularity of the third frequency domain unit is a predetermined second granularity. The first granularity is a granularity preconfigured for reporting a channel quality indicator (CQI), a second granularity is a granularity predetermined for reporting the PMI, and the second granularity is less than the first granularity.

公开(公告)号：US12224833B2

公开(公告)日：2025-02-11

申请号：US18331518

申请日：2023-06-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie Wang ,  Li Fan ,  Shibin Ge ,  Hui Wang ,  Zhimeng Zhong ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B7/0417

Abstract: This application provides a channel state information (CSI) feedback method including: a terminal device selects B complex coefficients from K complex coefficients according to a preset priority rule, and provides feedback, where K is a quantity of complex coefficients that the terminal device is allowed to feed back, and the preset priority rule is related to at least one of the following: an index value of each complex coefficient in the K complex coefficients, an index value of a reference signal port corresponding to each complex coefficient in the K complex coefficients in S reference signal ports, or an index value of each complex coefficient in the K complex coefficients in a plurality of complex coefficients that are allowed to be selected for a corresponding reference signal port, where S is a quantity of reference signal ports that the terminal device is allowed to select.

公开(公告)号：US12224822B2

公开(公告)日：2025-02-11

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

Abstract: This disclosure provides methods and apparatuses for precoding in wireless communications. In an implementation, a method includes: receiving, from a terminal device, 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, and determining the precoding vector of the one or more frequency domain units based on the first indication information.

公开(公告)号：US12206472B2

公开(公告)日：2025-01-21

申请号：US18155205

申请日：2023-01-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04B7/0456 ,  H04B7/0413 ,  H04W72/23

Abstract: A channel measurement method and a communications apparatus. The method includes: a terminal device receives precoded reference signals from a network device, where the precoded reference signals are obtained by precoding reference signals based on K angle vectors; and generates and sends first indication information, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs, the P weighting coefficients are determined based on the precoded reference signals, each of the P angle-delay pairs includes one angle vector and one delay vector corresponding to the angle vector, a delay vector corresponding to each angle vector is preconfigured, each angle vector and the delay vector corresponding to each angle vector are obtained through uplink channel measurement, and the P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix.

公开(公告)号：US20240396590A1

公开(公告)日：2024-11-28

申请号：US18788043

申请日：2024-07-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huan Sun ,  Xiaoyan Bi ,  Lei Dong

IPC: H04B7/04 ,  H04B7/024

Abstract: A communication method and a communication apparatus are provided. The method includes: a terminal device obtains a channel measurement result, wherein the channel measurement result is obtained by the terminal device based on at least two reflections by an antenna element set of an intelligent reflecting surface for a first signal sent by a network device, the first signal is a signal for channel measurement, and the antenna element set includes at least two antenna elements; and the terminal device determines a path difference between the antenna elements of the intelligent reflecting surface based on the channel measurement result.

公开(公告)号：US12143320B2

公开(公告)日：2024-11-12

申请号：US17669801

申请日：2022-02-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenquan Hu ,  Min Zhang ,  Bengt Lindoff ,  Thorsten Schier ,  Han Zhou ,  Xiaoyan Bi

IPC: H04L5/00 ,  H04J13/00 ,  H04W72/20

Abstract: A client device for associating phase tracking reference signal (PTRS) antenna ports to demodulation reference signal (DMRS) antenna ports, the client device being configured obtain configuration information related to a set of PTRS antenna ports, obtain control information indicating at least one of one or more codewords, a set of DMRS antenna ports assigned to the one or more codewords, or transmission configuration indication (TCI) information indicating one or more TCI states, and determine an association between the set of PTRS antenna ports and the set of DMRS antenna ports based on the configuration information related to the set of PTRS antenna ports and the control information.

公开(公告)号：US20240187053A1

公开(公告)日：2024-06-06

申请号：US18440664

申请日：2024-02-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiang Ren ,  Wei Han ,  Xiaoyan Bi

IPC: H04B7/0456 ,  H04B7/0417 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L25/0204 ,  H04B7/0417

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, N24 2, and both M and N are integers.

公开(公告)号：US11943014B2

公开(公告)日：2024-03-26

申请号：US17541668

申请日：2021-12-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haifan Yin ,  Huangping Jin ,  Shibin Ge ,  Xiaoyan Bi

IPC: H04B1/10 ,  H04B7/0417 ,  H04B7/0456

CPC classification number: H04B7/0417 ,  H04B7/0456

Abstract: This application provides a channel measurement method and a communications apparatus. The method includes: A terminal device generates first indication information and sends the first indication information to a network device, where the first indication information is determined based on received precoded reference signals of P ports and is used to indicate Q ports in the P ports; the P ports correspond to P angle-delay pairs; each angle-delay pair includes one angle vector and one delay vector; the precoded reference signal of each of the P ports is obtained by precoding a reference signal based on one angle vector and one delay vector; and the Q ports correspond to Q angle-delay pairs in the P angle-delay pairs.

公开(公告)号：US11929801B2

公开(公告)日：2024-03-12

申请号：US18304132

申请日：2023-04-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiang Ren ,  Wei Han ,  Xiaoyan Bi

IPC: H04L25/02 ,  H04B7/0417 ,  H04B7/0456

CPC classification number: H04B7/0456 ,  H04L25/0204 ,  H04B7/0417

Abstract: Embodiments of this application provide a channel estimation method and apparatus, and relate to the field of communications technologies, to help reduce indication overheads. The method includes: generating and sending indication information, wherein 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, wherein 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.