公开(公告)号：US20190229781A1

公开(公告)日：2019-07-25

申请号：US16371858

申请日：2019-04-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Ruiqi ZHANG

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  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：US20230044464A1

公开(公告)日：2023-02-09

申请号：US17968218

申请日：2022-10-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Ruiqi ZHANG

IPC: G06T7/73 ,  G06N3/08 ,  G06V10/46 ,  G06V40/10

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：US20230043646A1

公开(公告)日：2023-02-09

申请号：US17959878

申请日：2022-10-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao SUN ,  Yongzhao CAO ,  Hua LI ,  Ruiqi ZHANG ,  Lixia XUE

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00

Abstract: This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.

公开(公告)号：US20220149908A1

公开(公告)日：2022-05-12

申请号：US17349007

申请日：2021-06-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang GAO ,  Kunpeng LIU ,  Ruiqi ZHANG

IPC: H04B7/06

Abstract: Example communication methods and devices are provided. One example method includes a first device determines a first channel state information CSI report based on a precoding matrix type, where the precoding matrix type is a compressed type or an uncompressed type. The first device sends the first CSI report to a second device, where the first CSI report includes a CSI part 1 and a CSI part 2, the CSI part 1 indicates a number of bits of the CSI part 2 and the precoding matrix type, the CSI part 2 indicates wideband precoding matrix indicator (PMI) information, the wideband PMI information indicates an oversampling factor of a preset orthogonal beam vector and/or an index of the preset orthogonal beam vector, and the preset orthogonal beam vector is a spatial-domain orthogonal basis vector selected by the first device from a spatial-domain basis vector set.

公开(公告)号：US20210234584A1

公开(公告)日：2021-07-29

申请号：US17155169

申请日：2021-01-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Ruiqi ZHANG

IPC: H04B7/0456 ,  H04B7/0417 ,  H04B7/06

Abstract: This application discloses a precoding matrix index (PMI) reporting method, and related communications apparatus and medium. The method includes: determining an rank indicator (RI) and a PMI, where the PMI is used to determine R precoding matrices W1, . . . , WR. An rth precoding matrix Wr in the R precoding matrices satisfies Wr=W1×W2,r, where an lth row of W2,r is obtained by performing DFT transform on an lth row of a matrix V2,r, and R is indicated by the RI. The PMI includes first indication information and second indication information. The first indication information includes location index information. The location index information is used to indicate Km,r element locations tr,m,1, . . . , ∈{1, . . . , T} on an mth row of V2,r. The second indication information is used to indicate Km,r complex coefficients at the element locations tr,m,1, . . . , on the mth row of V2,r. V2,r is determined based on the Km,r element locations and the Km,r complex coefficients.

公开(公告)号：US20200382183A1

公开(公告)日：2020-12-03

申请号：US16997670

申请日：2020-08-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Xueru LI ,  Di ZHANG

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: Channel state information (CSI) sending methods, apparatuses, and systems are disclosed. In an implementation, a method comprises: receiving, by a network device from a terminal device, channel state information (CSI) comprising a rank indicator (RI), indication information, and a second precoding matrix indicator (PMI2); determining, by the network device, the RI and the indication information from the CSI; determining, by the network device, the PMI2 based on the RI and the indication information; and determining, by the network device, a precoding matrix W based on the RI and the PMI2, wherein W satisfies W=W1×W2, W is an Nt by L matrix, W1 is an Nt by 2I matrix, W2 is a 2I by L matrix, L is a rank indicated by the RI, Nt is greater than or equal to L, and I is an integer greater than or equal to 1.

公开(公告)号：US20200374869A1

公开(公告)日：2020-11-26

申请号：US16992779

申请日：2020-08-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Ruiqi ZHANG

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18

Abstract: One example method includes determining, by a terminal device, that at least two physical uplink control channel (PUCCH) resources collide in a time unit n, where n is an integer, and the at least two PUCCH resources include a first resource configured for first uplink control information (UCI) and a second resource configured for second UCI; and determining, by the terminal device, the first resource and a third resource in the time unit n, where the third resource is one of M PUCCH resources, the first resource and the third resource do not include a same orthogonal frequency division multiplexing (OFDM) symbol in time domain, and M is a positive integer greater than or equal to 1, and the first resource is used to carry a part or all of the first UCI, and the third resource is used to carry a part or all of the second UCI.

公开(公告)号：US20200274603A1

公开(公告)日：2020-08-27

申请号：US15931749

申请日：2020-05-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi ZHANG ,  Kunpeng LIU ,  Xueru LI

IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/06

Abstract: This application provides a channel state information feedback method and an apparatus. The method includes: generating first frequency domain indication information and M1 pieces of first precoding indication information, where the first frequency domain indication information is used to indicate L1 frequency domain subbands in T frequency domain subbands, the T frequency domain subbands are a system bandwidth or a part of the system bandwidth, 1≤L1

公开(公告)号：US20180309486A1

公开(公告)日：2018-10-25

申请号：US16021786

申请日：2018-06-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruiqi ZHANG ,  Qiang WU

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/0486 ,  H04B7/06 ,  H04B7/0639

Abstract: A precoding matrix determining method and apparatus are provided. A terminal determines a precoding matrix, where the precoding matrix includes at least two column vector sets, a column vector associated with any column vector set of the at least two column vector sets exists in the at least two column vector sets, and both the any column vector set and the associated column vector are applied on different polarization antennas; the terminal determines a first precoding matrix indicator (PMI) and a second PMI based on the precoding matrix; and the terminal sends the first PMI and the second PMI to a base station. In this solution, different column vectors are applied to different polarization antennas. Therefore, a prior-art defect of unbalanced beam coverage performance is overcome.

公开(公告)号：US20220191859A1

公开(公告)日：2022-06-16

申请号：US17653075

申请日：2022-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xueru LI ,  Ruiqi ZHANG ,  Hao SUN

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L5/10 ,  H04W24/10

Abstract: This application provides an information transmission method and apparatus. The method includes: receiving, by a terminal device, a plurality of pieces of downlink control information DCI, where each of the plurality of pieces of DCI is used to trigger reporting of one piece of UCI and indicate a physical uplink control channel PUCCH resource carrying the UCI, the UCI includes at least one piece of channel state information CSI and response information, and PUCCH resources indicated by the plurality of pieces of downlink DCI occupy at least one same orthogonal frequency division multiplexing OFDM symbol; and sending, by the terminal device, target UCI on a target PUCCH resource, where the target UCI includes UCI triggered by the plurality of pieces of DCI, and the target PUCCH resource is one of the PUCCH resources indicated by the plurality of pieces of DCI.