公开(公告)号：US20220022193A1

公开(公告)日：2022-01-20

申请号：US17490786

申请日：2021-09-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongping ZHANG ,  Baojin LI ,  Xiaohan WANG ,  Huangping JIN

IPC: H04W72/08 ,  H04W72/04 ,  H04B7/06

Abstract: This application provides a method for reporting a terminal device capability and a communications apparatus. The method includes: The terminal device generates first indication information and sends the first indication information to a network device. The first indication information is used to indicate one or more frequency domain parameters and one or more of the following capability parameters associated with each frequency domain parameter: a port quantity, a spatial domain parameter, a reference signal resource quantity, and a total port quantity. The frequency domain parameter is used to indicate a maximum quantity of frequency domain units that can be supported by the terminal device. The frequency domain unit is a frequency domain unit based on which the terminal device feeds back a PMI. Each capability parameter group may be used to indicate one combination of a plurality of parameters that can be supported by the terminal device.

公开(公告)号：US20210320694A1

公开(公告)日：2021-10-14

申请号：US17347903

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhimeng ZHONG ,  Huangping JIN ,  Haifan YIN ,  Xiaoyan BI ,  Li FAN

IPC: H04B7/0456 ,  H04L5/00 ,  H04L25/02

Abstract: Example channel measurement methods and communications apparatus are described. One example method includes receiving a precoded reference signal by a terminal device, where the precoded reference signal is obtained by precoding a reference signal based on K angle vectors and L delay vectors. First indication information is generated and sent, where the first indication information is used to indicate P weighting coefficients corresponding to P angle-delay pairs. The P weighting coefficients are determined by using the precoded reference signal. The P angle-delay pairs and the P weighting coefficients corresponding to the P angle-delay pairs are used to determine a precoding matrix. Each angle-delay pair includes one of the K angle vectors and one of the L delay vectors. The K angle vectors and the L delay vectors are determined based on uplink channel measurement.

公开(公告)号：US20210314035A1

公开(公告)日：2021-10-07

申请号：US17349364

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Zhimeng ZHONG ,  Haifan YIN ,  Xiaoyan BI

IPC: H04B7/0456

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：US20210314034A1

公开(公告)日：2021-10-07

申请号：US17347850

申请日：2021-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haifan YIN ,  Huangping JIN ,  Zhimeng ZHONG ,  Xiaoyan BI ,  Li FAN

IPC: H04B7/0456 ,  H04B7/0417

Abstract: One example method includes receiving one or more precoded reference signals, where the one or more precoded reference signals are obtained by precoding one or more reference signals based on K angle vectors. First indication information can then be generated, where the first indication information is used to indicate at least one delay vector and P weighting coefficients corresponding to P angle-delay pairs, the at least one delay vector and the P weighting coefficients are determined based on the one or more precoded reference signals, each of the P angle-delay pair includes one of the K angle vectors and one of the at least one delay vector, and the P angle-delay pairs and the P weighting coefficients are used to determine a precoding matrix, where P and K are positive integers, and where P≥1, K≥1. The first indication information can then be sent.

公开(公告)号：US20210194547A1

公开(公告)日：2021-06-24

申请号：US17176529

申请日：2021-02-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Xiaohan WANG ,  Haifan YIN ,  Peng SHANG ,  Xiaoyan BI

IPC: H04B7/0456

Abstract: This application provides methods and apparatuses for precoding vector indication and determination. One method includes: generating, by a first communications device, first indication information that indicates one or more port selection vectors, one or more frequency domain vectors, and one or more linear combination coefficients, wherein each of the one or more linear combination coefficients corresponds to a port selection vector and a frequency domain vector, each of the one or more port selection vectors indicates a port of a precoded reference signal, and each of the one or more frequency domain vectors indicates a variation pattern of a channel in a frequency domain; and sending the first indication information to a second communications device.

公开(公告)号：US20200280963A1

公开(公告)日：2020-09-03

申请号：US16875074

申请日：2020-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Yong LIU ,  Ye WU ,  Wei HAN

IPC: H04W72/04

Abstract: Embodiments of the present invention provide user equipment, including: a transceiver module, configured to receive configuration information, where the configuration information is used to configure at least one physical resource block (PRB) bundling size; and a processing module, configured to determine a precoding resource block group (PRG) size based on the at least one PRB bundling size. The embodiments of the present invention further provide an access device. In technical solutions provided in the embodiments of the present invention, the PRG size is configured by configuring the PRB bundling size. In this way, there is no need to set dedicated signaling for configuring the PRG size. This helps reduce signaling overheads caused by configuring the PRG size.

公开(公告)号：US20190288751A1

公开(公告)日：2019-09-19

申请号：US16434556

申请日：2019-06-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Ruiqi ZHANG

IPC: H04B7/0417 ,  H04L5/00 ,  H04B7/06 ,  H04W72/04

Abstract: Embodiments of this application disclose a terminal device capability transmission method, apparatus, and system. A terminal device reports, to a network device, capability information used to indicate a channel state information CSI reporting capability of the terminal device. The capability information is associated with a quantity, supported by the terminal device in a time-domain unit, of ports of pilots used for CSI measurement, and is used to enable the network device receiving the capability information to learn the CSI reporting capability of the terminal device, thereby determining a CSI measurement configuration of the terminal device.

公开(公告)号：US20250039914A1

公开(公告)日：2025-01-30

申请号：US18788902

申请日：2024-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongping ZHANG ,  Baojin LI ,  Xiaohan WANG ,  Huangping JIN

IPC: H04W72/54 ,  H04B7/06 ,  H04W72/0453 ,  H04W72/23

Abstract: This application provides a method for reporting a terminal device capability and a communications apparatus. The method includes: The terminal device generates first indication information and sends the first indication information to a network device. The first indication information is used to indicate one or more frequency domain parameters and one or more of the following capability parameters associated with each frequency domain parameter: a port quantity, a spatial domain parameter, a reference signal resource quantity, and a total port quantity. The frequency domain parameter is used to indicate a maximum quantity of frequency domain units that can be supported by the terminal device. The frequency domain unit is a frequency domain unit based on which the terminal device feeds back a PMI. Each capability parameter group may be used to indicate one combination of a plurality of parameters that can be supported by the terminal device.

公开(公告)号：US20240154675A1

公开(公告)日：2024-05-09

申请号：US18404196

申请日：2024-01-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongzhe SHI ,  Haicun HANG ,  Jing LIANG ,  Yiqun WU ,  Huangping JIN

IPC: H04B7/06 ,  H04L25/02

CPC classification number: H04B7/0634 ,  H04B7/0626 ,  H04L25/0248

Abstract: Embodiments of this application provide a communication method and an apparatus. The method includes: A terminal device measures a downlink reference signal, to obtain third information. The terminal device determines first information and first scenario-related information of a downlink channel based on the third information, and sends the first information and the first scenario-related information to a network device. The network device determines second information based on the first scenario-related information and the first information, where the second information may be considered as reconstructed third information. The third information is reconstructed in the foregoing manner based on the scenario-related information, so that reconstruction precision of the third information can be improved.

公开(公告)号：US20240129092A1

公开(公告)日：2024-04-18

申请号：US18541093

申请日：2023-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junhui GAO ,  Huangping JIN ,  Xiang REN

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0626

Abstract: A channel state information (CSI) feedback method and apparatus. A terminal device receives a channel state information reference signal (CSI-RS) from a network device, and performs channel sounding based on the CSI-RS. The terminal device feeds back CSI to the network device based on a first codebook, wherein the first codebook is determined based on one or more transmit-end space-domain and frequency-domain column vectors and one or more receive-end space-domain and time-domain column vectors that represent a channel Alternatively, the first codebook is determined based on the one or more transmit-end space-domain and frequency-domain column vectors and one or more time-domain column vectors that represent the channel.