公开(公告)号：US20240322885A1

公开(公告)日：2024-09-26

申请号：US18735520

申请日：2024-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junhui GAO ,  Huangping JIN

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/06968 ,  H04L5/0051

Abstract: Embodiments of this application relate to the field of communication technologies and provide a channel state information feedback method, and an apparatus, to improve interaction efficiency of a communication system and reduce air interface signaling overheads. The method includes the following operations: A network device determines configuration information, where the configuration information indicates resources of N reference signals for channel measurement, and N is a positive integer greater than 1. The network device sends the configuration information and the N reference signals to a terminal device. The network device receives channel state indication information sent by the terminal device, where the indication information is obtained by the terminal device by measuring the N reference signals based on the configuration information.

公开(公告)号：US20240107509A1

公开(公告)日：2024-03-28

申请号：US18509898

申请日：2023-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haicun HANG ,  Xiaohan WANG ,  Liuliu JI ,  Huangping JIN ,  Xiang REN

IPC: H04W72/0453 ,  H04L1/1607 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W72/0453 ,  H04L1/1614 ,  H04L5/0051 ,  H04W72/12

Abstract: A resource scheduling method and a communication apparatus. In the method, a terminal device receives first indication information for determining a quantity of layers to be scheduled corresponding to each frequency domain unit in a plurality of frequency domain units, or for determining a quantity of layers to be scheduled corresponding to each frequency domain unit group in one or more frequency domain unit groups, where one frequency domain unit group includes one or more frequency domain units, one frequency domain unit includes one or more frequency domain resources with a same quantity of layers to be scheduled; and determines, based on the first indication information, a quantity of layers to be scheduled that are on frequency domain resources for data transmission, where at least two of the frequency domain resources for data transmission have different quantities of layers to be scheduled.

公开(公告)号：US20220407616A1

公开(公告)日：2022-12-22

申请号：US17891267

申请日：2022-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Shi JIN ,  Xiang REN ,  Xiaoyan BI

IPC: H04B17/373 ,  H04W24/08

Abstract: A method for predicting channel state information includes determining, by a user equipment, channel prediction information based on a reference signal from a network device, and sending channel prediction information. The channel prediction information is useable to predict the channel information.

公开(公告)号：US20220329305A1

公开(公告)日：2022-10-13

申请号：US17852957

申请日：2022-06-29

Applicant: HUAWEI TECHNOLOGIES CO, LTD.

Inventor： Xiang REN ,  Huangping JIN ,  Xiaohan WANG ,  Shibin GE ,  Yiling YUAN

IPC: H04B7/06

Abstract: This application describes a channel information feedback method and a communication apparatus. The method includes a terminal device that receives configuration information sent by a network device, where the configuration information is used to configure a feedback mode of channel information. The terminal device may feed back current channel information to the network device when the feedback mode configured by using the configuration information is a first mode. The terminal device may alternatively feeds back predicted channel information to the network device when the feedback mode configured by using the configuration information is a second mode. System performance is therefore improved by the method described in this application because channel information feedback requirements in different scenarios can be met. In particular, a problem that data transmission performance deteriorates because channel information expires in a moving scenario can be resolved by feeding back the predicted channel information.

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.