公开(公告)号：US20220167199A1

公开(公告)日：2022-05-26

申请号：US17670139

申请日：2022-02-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda LIU ,  Kunpeng LIU ,  Leiming ZHANG

IPC: H04W24/10 ,  H04B7/0456

Abstract: This application relates to a communications method and apparatus, and a device. The communications method includes: A terminal device determines a first codeword set, where the first codeword set includes a first codeword, the first codeword is a 4×1 matrix, and each element in the matrix is a non-zero element.

公开(公告)号：US20210352596A1

公开(公告)日：2021-11-11

申请号：US17372172

申请日：2021-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xianda LIU ,  Kunpeng LIU ,  Leiming ZHANG

IPC: H04W52/36 ,  H04W52/14 ,  H04W8/24

Abstract: This application provides a communications method and apparatus, to improve uplink transmission performance. The method includes determining, by a terminal device, capability indication information and sending the capability indication information to a network device. The capability indication information is used to determine a power scaling factor, the power scaling factor is a ratio of a sum of actual transmit power of n non-zero antenna ports to channel transmit power, and a maximum value of the channel transmit power is a rated maximum transmit power of a system.

公开(公告)号：US20200068596A1

公开(公告)日：2020-02-27

申请号：US16673446

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Jianghua LIU

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: This application provides a data transmission method and a device. The method includes: determining to-be-sent B code blocks (CBs); mapping the B CBs to resource elements (REs) of a scheduling resource, to obtain mapped data, where the scheduling resource includes L orthogonal frequency division multiplexing (OFDM) symbols, L1 of the L OFDM symbols meet one of a first condition, a second condition, or a third condition, and at least one of the L1 OFDM symbols has at least two groups of adjacent first elements, where a quantity of elements of another CB between adjacent first elements in one group is the same as that of the other group, and the first elements are elements in one partial CB; and sending the mapped data to a terminal device.

公开(公告)号：US20200044703A1

公开(公告)日：2020-02-06

申请号：US16597825

申请日：2019-10-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Jianghua LIU ,  Yongxing ZHOU

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method includes: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

公开(公告)号：US20190320330A1

公开(公告)日：2019-10-17

申请号：US16455999

申请日：2019-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Leiming ZHANG ,  Yifan LIU ,  Ming LEI

IPC: H04W16/28 ,  H04W72/04 ,  H04W80/08 ,  H04B7/06

Abstract: A data transmission method, a transmitting device, and a receiving device are disclosed. The method is applicable to a wireless communications system including a plurality of beams, and includes: determining, by a transmitting device, beam indication information and at least one transmit beam used for sending data to a receiving device; sending, by the transmitting device, the beam indication information to the receiving device; and transmitting, by the transmitting device, the data by using the at least one transmit beam. The transmitting device sends the beam indication information to indicate, to the receiving device, a corresponding receive beam used for receiving the data transmitted by the transmitting device.

公开(公告)号：US20190222288A1

公开(公告)日：2019-07-18

申请号：US16081865

申请日：2014-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongxing ZHOU ,  Jianguo WANG ,  Leiming ZHANG ,  Jianghua LIU

IPC: H04B7/06 ,  H04W72/00 ,  H04B7/0408 ,  H04L27/26

Abstract: Embodiments provide a base station, user equipment, and communication signal transmitting and receiving methods. The base station includes: a processing unit, configured to determine a resource configuration of a communication signal, where the resource configuration includes at least two different resource element groups; and a transmitting unit, configured to transmit the communication signal on each resource element group included in the resource configuration to user equipment, where the communication signal transmitted on each resource element group carries at least one piece of same information, and the same information is cell specific or user equipment group specific information.

公开(公告)号：US20180351617A1

公开(公告)日：2018-12-06

申请号：US16059948

申请日：2018-08-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Jianghua LIU ,  Yongxing ZHOU

IPC: H04B7/0456 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0417

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

公开(公告)号：US20180167117A1

公开(公告)日：2018-06-14

申请号：US15895666

申请日：2018-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Jianghua LIU ,  Leiming ZHANG

IPC: H04B7/04 ,  H04B7/0417 ,  H04B7/06 ,  H04L1/06

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0663 ,  H04L1/06

Abstract: The present invention provides a codebook configuration method and user equipment. The UE receives a reference signal that is of an antenna whose quantity of antenna ports is X and that is sent by a base station and configuration information of a codebook subset restriction for the quantity X of antenna ports, where the configuration information of the codebook subset restriction for the quantity X of antenna ports includes first configuration information and second configuration information; determines, according to the configuration information of the codebook subset restriction for the quantity X of antenna ports, a precoding matrix on which channel measurement and feedback need to be performed; and obtains, by means of measurement according to the reference signal, the precoding matrix on which channel measurement and feedback need to be performed and that is of antenna ports.

公开(公告)号：US20170170883A1

公开(公告)日：2017-06-15

申请号：US15398551

申请日：2017-01-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Leiming ZHANG ,  Qiang WU ,  Jianghua LIU

IPC: H04B7/0417 ,  H04B7/04 ,  H04B7/0452 ,  H04B1/04

CPC classification number: H04B7/0417 ,  H04B1/0475 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04L25/03006

Abstract: The present invention provides a precoding matrix indicator feedback method, a receive end, and a transmit end. The method includes: selecting, by a receive end based on a reference signal, a precoding matrix W from a codebook, where a coefficient α is used to perform phase adjustment on φn in W, φn represents a phase difference between weighted values of a first antenna group and a second antenna group of a transmit end for a transmission signal from a same transmission layer, ϕ n ∈ { e j   2   π   n Q } , and the first antenna group and the second antenna group belong to a same multi-antenna system; and sending, by the receive end, a precoding matrix indicator (PMI) to the transmit end. In this way, using the coefficient α to perform the phase adjustment on φn can increase a size of a codebook set applicable to different antenna configurations, and improve precision of the receive end to feed back a PMI.

公开(公告)号：US20160323025A1

公开(公告)日：2016-11-03

申请号：US15206062

申请日：2016-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng LIU ,  Leiming ZHANG ,  Jianghua LIU ,  Yongxing ZHOU

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

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0639 ,  H04B7/0658 ,  H04L5/0026 ,  H04W72/0406

Abstract: A precoding matrix set determining method and apparatus, and a parameter indication information sending method and apparatus are provided. The precoding matrix set determining method include: determining, by a first network device, a parameter used for determining a precoding matrix set, where the parameter includes at least one of a phase parameter, an amplitude parameter, a quantity of vectors in the precoding matrix set, a quantity of vectors in a first codebook set in dual-codebook feedback, and a quantity of vectors in a second codebook set in the dual-codebook feedback, and the parameter is not fixed; and using the parameter to determine the precoding matrix set, where the precoding matrix set includes at least one precoding matrix. By using this solution, flexibility of feeding back a precoding matrix indicator is improved.

Abstract translation: 提供了预编码矩阵集确定方法和装置，以及参数指示信息发送方法和装置。 预编码矩阵集确定方法包括：由第一网络设备确定用于确定预编码矩阵集合的参数，其中该参数包括相位参数，幅度参数，预编码矩阵中的向量量中的至少一个 设置在双码本反馈中设置的第一码本中的向量数量和双码本反馈中设置的第二码本中的矢量数量，并且该参数不固定; 以及使用该参数来确定预编码矩阵集合，其中预编码矩阵集合包括至少一个预编码矩阵。 通过使用该解决方案，提高了反馈预编码矩阵指示器的灵活性。