公开(公告)号：US20190082440A1

公开(公告)日：2019-03-14

申请号：US16186282

申请日：2018-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Han ,  Xiaoyan Bi ,  Dageng Chen

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0413

Abstract: Embodiments of the present application provide a channel state information feedback method, device, and system. The method includes: generating an uplink signal, where the uplink signal carries information for identifying multiple codewords and weights of the codewords; and transmitting the uplink signal to a base station (BS), so that the base station estimates a downlink channel based on the multiple codewords and weight information of the codewords in the uplink signal. In the embodiments of the present application, a user equipment UE side reports multiple codewords and weight information of the multiple codewords. This can resolve a problem in the prior art that precision of downlink channel estimation performed by a BS side is relatively low because only a single codeword is reported, and can effectively enhance precision indicated by channel information, without increasing complexity of a codebook design and implementation.

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：US20250167959A1

公开(公告)日：2025-05-22

申请号：US19028697

申请日：2025-01-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyan Bi ,  Jianglei Ma ,  Lei Liu

IPC: H04L5/00 ,  H04L25/02

Abstract: Embodiments of the application may produce a dramatic reduction in reference signal overhead, enabling channel estimation and acquisition of MIMO with a very large bandwidth in the 10˜13 GHz range and a very ultra large number of antenna ports and a very large number of transmission layers, and exploit channel correlation in time/frequency/spatial domain. Firstly, a new signaling to indicate the topology structure of channel vectors is provided. Secondly, UE behavior is defined in terms of channel estimation and interpolation, based on the indicated topology structure. Thirdly, reference signal patterns are derived, again based on the topology structure.

公开(公告)号：US12284018B2

公开(公告)日：2025-04-22

申请号：US17241165

申请日：2021-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04L1/1607

Abstract: Example precoding vector indication methods, precoding vector determining methods, and communications apparatus to reduce feedback overheads are described. One example method includes generating and sending a channel state information (CSI) report by a terminal device. A network device determines a precoding vector of one or more frequency domain units based on the CSI report. The CSI report is used to indicate M space-frequency units and a weighting coefficient of a part or all of the M space-frequency units, each of the M space-frequency units corresponds to one beam vector and one frequency domain vector, and a weighted sum of the part or all of the M space-frequency units is used to determine the precoding vector of the one or more frequency domain units.

公开(公告)号：US20250097885A1

公开(公告)日：2025-03-20

申请号：US18941772

申请日：2024-11-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alireza Bayesteh ,  Huang Huang ,  Xiaoyan Bi ,  Jianglei Ma

IPC: H04W64/00

Abstract: Aspects of the present application relate to sensing-based, mobility-aware waveform adaptation. A transmitting device may estimate a velocity vector for a mobile device. The velocity vector estimate may be based on measurements made at the mobile device and fed back to the transmitting device or based on measurements made at other devices in the environment and provided to the transmitting device. The transmitting device may, based on the estimate of the velocity vector, obtain a Doppler variable estimate for a signal path between the transmitting device and the mobile device. The transmitting device may then adapt a to-be-transmitted waveform based on the Doppler variable estimate for the signal path and then transmit the adapted waveform. Occasionally, the transmitting device may obtain updates to parameters that describe the location and mobility of the mobile device. On the basis of the updates, the transmitting device may update the waveform adaptation.

公开(公告)号：US12244382B2

公开(公告)日：2025-03-04

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：US12244379B2

公开(公告)日：2025-03-04

申请号：US17343200

申请日：2021-06-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ye Wu ,  Xiaoyan Bi

IPC: H04B7/06 ,  H04B1/713 ,  H04B7/0456 ,  H04J11/00 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04

Abstract: This application provides a channel state information (CSI) measurement method and an apparatus. The method includes: A network device receives, from a terminal, a first reference signal (RS) used to measure uplink CSI and a second RS used to measure the uplink CSI. The first RS includes one or more RS ports, and the one or more RS ports correspond to one or more antenna ports of the terminal. Correspondingly, the second RS includes one or more RS ports, and the one or more RS ports also correspond to one or more antenna ports of the terminal. In addition, the one or more antenna ports, of the terminal, corresponding to the one or more RS ports included in the second RS are partially or completely the same as the one or more antenna ports, of the terminal, corresponding to the one or more RS ports included in the first RS.

公开(公告)号：US20250055542A1

公开(公告)日：2025-02-13

申请号：US18930856

申请日：2024-10-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Dong ,  Xiaoyan Bi ,  Yong Liu ,  Xiaojun Xi

IPC: H04B7/06 ,  H04B17/20

Abstract: Embodiments of this application provide a channel measurement method and a communication apparatus. The method includes: A first apparatus receives K signals, where the K signals correspond to K ports. The first apparatus measures the K signals to obtain measurement results, where the measurement results are used to determine channel state information corresponding to R ports, R is greater than K, and K is greater than or equal to 1. According to solutions provided in embodiments of this application, resource overheads for channel measurement can be reduced.

公开(公告)号：US12156147B2

公开(公告)日：2024-11-26

申请号：US18335683

申请日：2023-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yong Liu ,  Xiang Ren ,  Xiaoyan Bi

IPC: H04W52/18 ,  H04W52/14 ,  H04W52/32

Abstract: Example communication methods and communications apparatus are described. One example method includes determining power of a demodulation reference signal (DMRS) by a terminal device. The terminal device sends the DMRS based on the determined power. In embodiments of this application, the power of the DMRS can be flexibly determined for different communication statuses.

公开(公告)号：US12132589B2

公开(公告)日：2024-10-29

申请号：US17136660

申请日：2020-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaoyan Bi ,  Min Zhang ,  Xiaohan Wang ,  Haicun Hang

IPC: H04L25/03 ,  H04W72/23

CPC classification number: H04L25/03866 ,  H04W72/23

Abstract: Data scrambling methods and devices are provided in this disclosure. One method comprises: configuring, by a communications device, a plurality of scrambling identifiers associated with different downlink control information (DCI) configuration information, wherein the DCI configuration information is parameter information used to obtain a downlink control channel; and sending, by the communications device, the plurality of scrambling identifiers to a terminal device.