公开(公告)号：US12149383B2

公开(公告)日：2024-11-19

申请号：US17340975

申请日：2021-06-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruiqi Zhang

IPC: H04L25/02 ,  H04L5/00

Abstract: Embodiments of this application provide an SRS sending method, an SRS receiving method, and a device. A manner of determining an antenna used to send an SRS is provided. In addition, a case in which one subframe includes a plurality of symbols is considered by using a quantity of first time units that are used by a terminal device to send an SRS in one uplink subframe and a case in which one antenna is enabled to implement continuous sending as much as possible is also considered by using a quantity of first time units that are consecutively used to send the SRS in one subframe by using a same antenna.

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：US11863252B2

公开(公告)日：2024-01-02

申请号：US17968218

申请日：2022-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Ruiqi Zhang

IPC: H04B7/0417 ,  H04B7/06 ,  H04W72/0446 ,  H04L5/00 ,  H04W72/51 ,  G06T7/73 ,  G06V10/46 ,  G06V40/10 ,  G06N3/08

CPC classification number: H04B7/0417 ,  G06N3/08 ,  G06T7/73 ,  G06V10/462 ,  G06V40/103 ,  H04B7/0626 ,  H04B7/0628 ,  H04L5/0048 ,  H04W72/0446 ,  H04W72/51 ,  G06T2207/30196 ,  G06T2210/12

Abstract: Embodiments of this application disclose terminal device capability transmission methods, apparatuses, and systems. In an implementation, a terminal device transmits capability information to a network device, the capability information indicates a maximum quantity of ports of reference signals for channel state information (CSI) measurement supported by a terminal device in a time-domain unit, wherein the time-domain unit is one slot, and the capability information is determined based on a capability of the terminal device.

公开(公告)号：US11637599B2

公开(公告)日：2023-04-25

申请号：US17512641

申请日：2021-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Xueru Li

IPC: H04B7/02 ,  H04B7/0456

Abstract: Embodiments of this application provide a precoding matrix indication method, a communications apparatus, and a storage medium. A precoding matrix of each of K frequency-domain units satisfies W=W1×W2, and elements in W2 in the K frequency-domain units are represented by P elements that are relatively few. A terminal device reports third indication information, where the third indication information includes first indication information and the second indication information, and the first indication information and the second indication information are independently encoded. The first indication information is used to indicate the P elements, and the second indication information is used to indicate P. Therefore, the terminal device can adjust a quantity of information bits of the second indication information based on a channel condition change, thereby improving precoding matrix reporting efficiency.

公开(公告)号：US11265062B2

公开(公告)日：2022-03-01

申请号：US17062139

申请日：2020-10-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang Gao ,  Ruiqi Zhang

IPC: H04B7/06 ,  H04L5/00

Abstract: This application provides sounding reference signal transmission methods and apparatuses. One method comprises: determining, by a terminal device, that a sounding reference signal (SRS) to be transmitted is an nSRSth transmission of a plurality of SRS transmissions, wherein nSRS is a non-negative integer; selecting, by a terminal device, an antenna group of Λ antenna groups to transmit the sounding reference signal (SRS) based on Λ and nSRS, such that when sending the SRS for 2Λ times, the SRS is sent through each of the Λ antenna groups at least once, wherein Λ is a positive integer greater than or equal to 3; and sending, by the terminal device during the nSRSth transmission, the SRS through antenna ports comprised in the selected antenna group.

公开(公告)号：US11201655B2

公开(公告)日：2021-12-14

申请号：US16867819

申请日：2020-05-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Jianqin Liu

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00

Abstract: This application discloses a data transmission solution. A terminal device generates channel state information and data for transmission in a data channel. The transmit power of the data channel is determined based on the number of bits used to transmit the data and the number of bits used to transmit the channel state information. The solution of this application reduces bit error probability and improves data decoding accuracy.

公开(公告)号：US11082108B2

公开(公告)日：2021-08-03

申请号：US16521318

申请日：2019-07-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di Zhang ,  Ruiqi Zhang

IPC: H04B7/06 ,  H04L5/14

Abstract: This application provides a channel state information transmission method, an access network device, and a terminal device. The method includes: receiving, by an access network device, CSI reported by a terminal device, where the CSI includes a first PMI and a second PMI; and determining, by the access network device based on the first PMI and the second PMI, a precoding matrix W whose rank is greater than or equal to 2, where W meets W=W1×W2, and the second PMI is used to indicate some column vectors in W2. According to the method in the embodiment, overheads of feeding back the CSI by the terminal device are effectively reduced.

公开(公告)号：US10924168B2

公开(公告)日：2021-02-16

申请号：US16523073

申请日：2019-07-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruiqi Zhang

IPC: H04L5/12 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: A reference signal sending method includes the following. A network device sends reference signals of N antenna ports and downlink data to a terminal device, where the reference signals of the N antenna ports include cell common reference signals of N1 antenna ports and reference signals that are of N2 antenna ports and that are specific to the terminal device. After receiving the reference signals of the N antenna ports and the downlink data, the terminal device detects the downlink data based on the reference signals.

公开(公告)号：US10897293B2

公开(公告)日：2021-01-19

申请号：US16559354

申请日：2019-09-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Xueru Li

IPC: H04W4/00 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L1/00 ,  H04L5/00 ,  H04B7/0426

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 front 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：US10735056B2

公开(公告)日：2020-08-04

申请号：US16126331

申请日：2018-09-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruiqi Zhang ,  Bingyu Qu

IPC: H04B7/0417 ,  H04W24/10 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06

Abstract: Embodiments of the present invention disclose a channel quality index measurement method and apparatus. The method includes: determining, by a base station, a target CSI-RS on each of time-frequency resources corresponding to resource numbers of a terminal, where the target CSI-RS is a precoded CSI-RS, and the time-frequency resource is a resource element used to transmit the CSI-RS or the target CSI-RS; sending, by the base station, the target CSI-RS on each of the time-frequency resources corresponding to the resource numbers to the terminal on the time-frequency resource; sending, by the base station to the terminal, indication information used to indicate the resource numbers of the terminal; and receiving, by the base station, a CQI that is sent by the terminal and that is used to indicate channel quality.