公开(公告)号：US20240365332A1

公开(公告)日：2024-10-31

申请号：US18759097

申请日：2024-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Xu ,  Huangping Jin ,  Hanqing Wang ,  Xiaohan Wang ,  Jiyong Pang

IPC: H04W72/231 ,  H04W72/0453 ,  H04W72/0457 ,  H04W72/1268

CPC classification number: H04W72/231 ,  H04W72/0453 ,  H04W72/0457 ,  H04W72/1268

Abstract: This application provides a communication method and a communication apparatus. In the method, the terminal device receives first indication information, where the first indication information indicates a quantity of bits occupied by second indication information, the second indication information indicates uplink precoding information of P RB sets, each resource block RB set in the P RB sets includes one or more RBs, different RB sets in the P RB sets correspond to different uplink precoding information, and P is greater than or equal to 2; the terminal device receives DCI; the terminal device determines the second indication information in the DCI based on the quantity of bits; and the terminal device sends uplink information based on the uplink precoding information of the P RB sets.

公开(公告)号：US20240314543A1

公开(公告)日：2024-09-19

申请号：US18675128

申请日：2024-05-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Didi Zhang ,  Xiaohan Wang ,  Shibin Ge ,  Huangping Jin

IPC: H04W8/22 ,  H04B7/06 ,  H04W72/0446 ,  H04W72/232

CPC classification number: H04W8/22 ,  H04B7/0626 ,  H04W72/0446 ,  H04W72/232

Abstract: Embodiments of this application provide a method and an apparatus for triggering channel state information (CSI) reporting. The method includes: A terminal device receives downlink control information sent by a network device. The downlink control information is for triggering N pieces of CSI reporting. The N pieces of CSI reporting are in a one-to-one correspondence with N pieces of CSI reporting configuration information indicated by the downlink control information. The N pieces of CSI reporting configuration information are different from each other, where N is a positive integer greater than 1. The terminal device performs the N pieces of CSI reporting based on the N pieces of CSI reporting configuration information. In the communication method provided in this application, one piece of downlink control information simultaneously triggers a plurality of different pieces of CSI reporting.

公开(公告)号：US12069705B2

公开(公告)日：2024-08-20

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

CPC classification number: H04W72/54 ,  H04B7/0626 ,  H04B7/0639 ,  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：US11979225B2

公开(公告)日：2024-05-07

申请号：US17487397

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Liuliu Ji ,  Hongzhe Shi ,  Haicun Hang ,  Min Zhang ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04W40/06 ,  H04J13/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04J13/004 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/23

Abstract: Embodiments of this application provide a downlink control information transmission method in which after receiving one piece of downlink control information (DCI), the terminal device learns whether blind detection of DCI needs to be continued. The method includes: A terminal device receives first DCI, where the first DCI includes first indication information, and the first indication information is used to indicate a first antenna port. The terminal device determines, based on the first antenna port and antenna port configuration information, whether second DCI exists. The configuration information may include an index of a CDM group to which each of a plurality of antenna ports belongs and a maximum quantity of CDM groups that is supported by the terminal device. Alternatively the configuration information may include one or more antenna port groups, and each of the one or more antenna port groups includes one or more antenna ports.

公开(公告)号：US11863262B2

公开(公告)日：2024-01-02

申请号：US18063621

申请日：2022-12-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0626 ,  H04B7/0663

Abstract: This disclosure provides methods and apparatuses for generating precoding vectors. One method includes: receiving a channel state information (CSI) report, wherein the CSI report indicates a quantity of space-frequency vector pairs to be reported for a quantity of R transport layers, wherein a size of an overhead for indicating the quantity of the space-frequency vector pairs is same when the quantity of R is greater than or equal to 2, wherein each of the space-frequency vector pairs comprises one spatial domain vector and one frequency domain vector, and wherein for each of the R transport layers, one or more frequency domain units associated with the transport layer correspond to one or more precoding vectors, and determining the quantity of space-frequency vector pairs according to the CSI report.

公开(公告)号：US11848729B2

公开(公告)日：2023-12-19

申请号：US17900501

申请日：2022-08-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Xiaoyan Bi

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

CPC classification number: H04B7/0469 ,  H04B7/0626 ,  H04L5/0003

Abstract: This application discloses methods and apparatuses for determining precoding vector. One example method includes: determining, by a network apparatus, a precoding vector of one or more frequency domain units based on the first indication information. The first indication information is used to indicate L1 beam vectors in a beam vector set, K1 frequency domain vectors in a frequency domain vector set, and T1 space-frequency component matrices. A weighted sum of the T1 space-frequency component matrices is used to determine a precoding vector of each frequency domain unit. The T1 space-frequency component matrices are selected from M1 space-frequency component matrices corresponding to the L1 beam vectors and the K1 frequency domain vectors, each space-frequency component matrix is uniquely determined by one beam vector and one frequency domain vector.

公开(公告)号：US11818714B2

公开(公告)日：2023-11-14

申请号：US16986167

申请日：2020-08-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin Ge ,  Xiaohan Wang ,  Yong Liu ,  Huangping Jin ,  Xiaoyan Bi

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04 ,  H04L1/1812 ,  H04W72/23

CPC classification number: H04W72/1278 ,  H04L1/1812 ,  H04W72/23

Abstract: A transmission control method includes: receiving N pieces of transmission control information; and generating, based on the N pieces of transmission control information, transmission feedback information corresponding to transport blocks respectively scheduled by using the N pieces of transmission control information. Transport blocks can be accurately distinguished based on different effective transmission parameter group fields, and an effective feedback is provided.

公开(公告)号：US20230239014A1

公开(公告)日：2023-07-27

申请号：US18192632

申请日：2023-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaohan Wang ,  Huangping Jin ,  Haicun Hang

IPC: H04B7/0456 ,  H04W72/232 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04W72/232 ,  H04L5/0048 ,  H04L25/0228

Abstract: This disclosure discloses an information indication method and an apparatus, to resolve a problem that indication precision of an uplink precoding matrix is low. The method includes: receiving a downlink reference signal sent by a network device on a first transmission resource; performing channel estimation based on the downlink reference signal, to obtain a downlink equivalent channel corresponding to the first transmission resource; and determining, based on the downlink equivalent channel, to-be-indicated information corresponding to a terminal device, where the to-be-indicated information indicates an uplink precoding matrix used when a first terminal device sends uplink data on the first transmission resource. The downlink equivalent channel is obtained by performing channel estimation based on the downlink reference signal.

公开(公告)号：US11411620B2

公开(公告)日：2022-08-09

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: H04B7/04 ,  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：US11362707B2

公开(公告)日：2022-06-14

申请号：US17369513

申请日：2021-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping Jin ,  Xiaohan Wang ,  Xiaoyan Bi

IPC: H04B7/02 ,  H04B7/0456

Abstract: The present disclosure relates to precoding vector indicating and determining methods and communications apparatus. In one example method, a 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 vectors and one or more weighting coefficients, where the one or more frequency domain vectors include a frequency domain vector reported for each of R frequency domain unit groups, the one or more weighting coefficients include a weighting coefficient reported for each of the R frequency domain unit groups, and a frequency domain vector and a weighting coefficient that are reported for an rth frequency domain unit group in the R frequency domain unit groups are used to construct a precoding vector corresponding to one or more frequency domain units in the rth frequency domain unit group.