公开(公告)号：US10476568B2

公开(公告)日：2019-11-12

申请号：US16375312

申请日：2019-04-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Xueru Li

IPC: H04W4/00 ,  H04B7/0456 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: This application provides a method for determining a precoding matrix set, so as to avoid a case in which a relatively large quantity of precoding matrices in a precoding matrix set cannot be used, thereby improving system performance. A terminal device receives indication information from a network device, and determines a second precoding matrix set from a first precoding matrix set whose rank is R based on the indication information. Each precoding matrix W in the first precoding matrix set satisfies W=W1×W2, the second precoding matrix set is a proper subset of the first precoding matrix set, and the second precoding matrix set does not include W=W1×W2 that satisfies the specific condition in the first precoding matrix set.

公开(公告)号：US20190036581A1

公开(公告)日：2019-01-31

申请号：US16146599

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ruiqi Zhang ,  Xueru Li ,  Di Zhang

IPC: H04B7/0456 ,  H04B7/0413 ,  H04B7/06

Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

公开(公告)号：US20250106828A1

公开(公告)日：2025-03-27

申请号：US18971761

申请日：2024-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04W72/0446 ,  H04L5/00

Abstract: A communication method includes a first device that generates a first ultra-wide band (UWB) frame, and sends the first UWB frame on a first channel. A first field of the first UWB frame includes a first-type preamble symbol, a second field of the first UWB frame includes a second-type preamble symbol, the first field is a first synchronization field in a synchronization header of the first UWB frame, and the second-type preamble symbol is used to perform channel access or resource selection. The first-type preamble symbol has a first-type format, and the second-type preamble symbol has a specific second-type format.

公开(公告)号：US12255711B2

公开(公告)日：2025-03-18

申请号：US18547577

申请日：2021-12-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456

Abstract: In a method, a terminal device reports, to a network device, a full-power transmission codebook subset corresponding to a frequency band supported by the terminal device before transmission channel switching. The network device or the terminal device in a communications system may determine, according to a specified rule and full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a full-power transmission codebook subset corresponding to a target frequency band after transmission channel switching. The plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, and the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching.

公开(公告)号：US20240275463A1

公开(公告)日：2024-08-15

申请号：US18647936

申请日：2024-04-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sihai Wang ,  Cheng Qin ,  Rui Yang ,  Xueru Li

IPC: H04B7/06 ,  H04B17/30

CPC classification number: H04B7/0686 ,  H04B17/30

Abstract: Embodiments of this application provide a communication method and a communication apparatus. The communication method includes: A first apparatus receives first configuration information from a second apparatus, where the first configuration information indicates the first apparatus to send CSI reports in a hybrid mode of a first mode and a second mode. The first apparatus receives first information from the second apparatus, where the first information indicates the first apparatus to adjust a proportion of sending a CSI report in the first mode and/or a proportion of sending a CSI report in the second mode, and the first information is determined by the second apparatus based on first communication performance and second communication performance.

公开(公告)号：US20240097836A1

公开(公告)日：2024-03-21

申请号：US18521860

申请日：2023-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li ,  Yiru Kuang

IPC: H04L5/00 ,  H04B7/0413

CPC classification number: H04L5/001 ,  H04B7/0413 ,  H04L5/0098

Abstract: A terminal device reports first capability information to a network device, where the first capability information indicates that values of a maximum quantity of downlink MIMO layers supported by the terminal device on a first component carrier CC include a first maximum quantity M1 of downlink MIMO layers and a second maximum quantity M2 of downlink MIMO layers; and the terminal device receives first signaling sent by the network device, where the first signaling configures maximum MIMO layer quantity information corresponding to the first CC, and the maximum MIMO layer quantity information includes a first maximum quantity N1 of MIMO layers and a second maximum quantity N2 of MIMO layers.

公开(公告)号：US11888563B2

公开(公告)日：2024-01-30

申请号：US17171627

申请日：2021-02-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru Li ,  Ruiqi Zhang ,  Kunpeng Liu ,  Xianda Liu ,  Yongxing Zhou

IPC: H04B7/06 ,  H04B17/345 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04B7/0626 ,  H04B17/345 ,  H04L5/0048 ,  H04W72/23

Abstract: This application provides a channel state information reporting method and apparatus. The method includes: A terminal device receives M pieces of downlink control information, where first downlink control information in the M pieces of downlink control information indicates a first channel state information configuration, the first channel state information configuration is associated with a first channel state information interference measurement CSI-IM resource group, and the first CSI-IM resource group includes N1 CSI-IM resources, where M and N1 are positive integers, and N1 is greater than 1; and the terminal device measures a target CSI-IM resource, and reports channel state information, where the target CSI-IM resource is determined by the terminal device from the N1 CSI-IM resources based on M, and a quantity of target CSI-IM resources is less than N1.

公开(公告)号：US20240007173A1

公开(公告)日：2024-01-04

申请号：US18039886

申请日：2021-11-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Bichai Wang ,  Xueru Li

IPC: H04B7/06 ,  H04W72/0453 ,  H04W72/1268

CPC classification number: H04B7/06952 ,  H04W72/0453 ,  H04W72/1268

Abstract: In accordance with an embodiment, a method includes sending a first message to a network device includes capability information of a terminal device that indicates antenna ports supported by P frequency domain units of the terminal device, and an antenna port supported by an ith frequency domain unit in the P frequency domain units includes an antenna port associated with the ith frequency domain unit and an antenna port that can be switched to the ith frequency domain unit in antenna ports associated with Ni frequency domain units in the P frequency domain units; and receiving configuration information from the network device, where the configuration information configures at least two sounding reference signal (SRS) resources for a first frequency domain unit of the terminal device, and the first frequency domain unit is associated with first uplink transmission configuration information.

公开(公告)号：US20230180134A1

公开(公告)日：2023-06-08

申请号：US17958885

申请日：2022-10-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianda Liu ,  Xueru Li

IPC: H04W52/14

CPC classification number: H04W52/146

Abstract: This application provides a communication method, apparatus, and system, to improve transmission performance in a communication process. The method includes: A terminal device determines a power control parameter of a PUSCH based on precoding indication information used by the PUSCH, where the precoding indication information includes n TPMIs, each TPMI corresponds to a set of power control parameters, at least two of the n TPMIs respectively correspond to different power control parameters, and each TPMI corresponds to some time-frequency resources occupied by the PUSCH, where n is a positive integer. The terminal device sends the PUSCH based on the power control parameter.

公开(公告)号：US20230156657A1

公开(公告)日：2023-05-18

申请号：US18158015

申请日：2023-01-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Huang ,  Xueru Li ,  Lan Peng

IPC: H04W64/00

CPC classification number: H04W64/00

Abstract: A method includes receiving, from a reference node, a first positioning measurement reference signal transmitted through N transmission paths, where N is an integer greater than 1; measuring first positioning information based on the first positioning measurement reference signal on a first transmission path, where the first transmission path is one of the N transmission paths; and sending first indication information and a second positioning measurement reference signal to the reference node, where the first indication information is used to indicate the first transmission path, so that the reference node measures second positioning information on the first transmission path.