公开(公告)号：US11139936B2

公开(公告)日：2021-10-05

申请号：US16673111

申请日：2019-11-04

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda Liu ,  Kunpeng Liu ,  Ruiqi Zhang ,  Xueru Li

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0456 ,  H04W72/04 ,  H04W72/12

Abstract: This application provides a data transmission method, terminal device, and network device. The method includes: sending, by a terminal device, at least one precoded reference signal on at least one reference signal resource corresponding to a first PRG, where different precoding matrixes are used for different reference signals, and the first PRG is a PRG used to transmit a reference signal; receiving, by the terminal device, resource indication information, where the resource indication information indicates a reference signal resource that is corresponding to a second PRG and that is in the at least one reference signal resource, and the second PRG is a PRG used to transmit a physical uplink shared channel (PUSCH); and sending, by the terminal device, a precoded PUSCH on the second PRG based on the resource indication information, where a precoding matrix used for the PUSCH is a precoding matrix used for a reference signal sent on the reference signal resource corresponding to the second PRG. In this way, a precoding matrix used to transmit the PUSCH on the second PRG can be effectively selected.

公开(公告)号：US11108533B2

公开(公告)日：2021-08-31

申请号：US16584954

申请日：2019-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kunpeng Liu ,  Xueru Li

IPC: H04L27/26 ,  H04L5/10 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, base station, and receiving device are provided to advance a decoding time of a second codeword. The method performed by a base station includes obtaining a demodulation pilot pattern (DPP) in a transmission time unit, the DPP includes a first DPP of a first codeword and a second DPP of a second codeword; the first DPP indicates a time-frequency resource of each OFDM symbol in a first set, and the second DPP indicates a time-frequency resource of each OFDM symbol in a second set; and an MCS indication value of the first codeword is greater than an MCS indication value of the second codeword; and mapping a pilot signal to a time-frequency resource based on the DPP, and sending the pilot signal, a transmission time of a first OFDM symbol in the first set is before a transmission time of a first OFDM symbol in the second set.

公开(公告)号：US10965355B2

公开(公告)日：2021-03-30

申请号：US16935549

申请日：2020-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru Li ,  Ruiqi Zhang

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0417

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,rand 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, . . . , tr,m,Kmj∈{1, . . . , T} on an mth row of V2,r. The second indication information is used to indicate Km,r complex coefficients ar,m,tr,mj at the element locations tr,m,1, . . . , tr,m,kmj 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：US10855358B2

公开(公告)日：2020-12-01

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 ,  H04L1/06 ,  H04B7/0456

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：US10673508B2

公开(公告)日：2020-06-02

申请号：US16505204

申请日：2019-07-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kunpeng Liu ,  Xueru Li

IPC: H04B7/02 ,  H04B7/06 ,  H04L25/02

Abstract: This application provides a channel state information feedback method, user equipment, and a base station. A base station configures N first reference signal resources for UE, and sends the N first reference signal resources to the UE. The UE feeds back the CSI of the M first reference signal resources in a horizontal dimension and the M pieces of first reference signal resource indication information to the base station. This overcomes a disadvantage that only channel state information in a horizontal dimension is fed back in conventional channel estimation.

公开(公告)号：US10574307B2

公开(公告)日：2020-02-25

申请号：US16403119

申请日：2019-05-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xueru Li ,  Kunpeng Liu ,  Bingyu Qu

IPC: H04B7/04 ,  H04B7/0417 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10

Abstract: The present invention describes a channel measurement method, including: sending, by a base station, first control information to user equipment UE, where the first control information is used to indicate a measurement reference signal of the UE on a carrier, and the first control information includes at least one first measurement configuration set, and is used to instruct the UE to measure the measurement reference signal based on the at least one first measurement configuration set; sending, by the base station, the measurement reference signal to the UE.

公开(公告)号：US10511367B2

公开(公告)日：2019-12-17

申请号：US16279329

申请日：2019-02-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiqi Zhang ,  Xueru Li ,  Di Zhang

IPC: H04B7/02 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: A channel state information sending method, a channel state information receiving method, and a device are disclosed, to reduce resource overheads required when a terminal device feeds back CSI to a network device in a scenario of a high precision codebook-based precoding matrix. The method includes: determining, by a terminal device, a precoding matrix W; sending, by the terminal device, a signal including CSI to a network device; obtaining, by the network device, an RI and indication information based on the signal including the CSI; obtaining, by the network device, a PMI2 based on the RI and the indication information; and determining, by the network device, the precoding matrix W based on the rank indicator RI and the second precoding matrix indicator PMI2.

公开(公告)号：US20250151096A1

公开(公告)日：2025-05-08

申请号：US19020270

申请日：2025-01-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongli He ,  Ruicheng Jiao ,  Xueru Li

IPC: H04W72/40 ,  H04L5/00 ,  H04W24/10 ,  H04W72/02 ,  H04W92/18

Abstract: This application provides a signal sending method and an apparatus. The signal sending method and the apparatus may be used in a 5G communication system, a 6G communication system, and a future communication system. The method includes: A first device determines N reference signal resources. The first device sends N reference signals to a second device on the N reference signal resources. A first sidelink resource pool is configured for the first device. The first sidelink resource pool includes K reference signal resources. The K reference signal resources are K periodic reference signal resources. The K reference signal resources include the N reference signal resources, where N is an integer greater than 0, and K is an integer greater than or equal to N.

公开(公告)号：US20250151032A1

公开(公告)日：2025-05-08

申请号：US19016531

申请日：2025-01-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ruicheng Jiao ,  Hongli He ,  Yun Liu ,  Xueru Li ,  Lixia Xue

IPC: H04W72/02 ,  H04W74/0808

Abstract: This application relates to a resource selection method and a first terminal. The method includes: before determining a first transmission resource used to transmit a first transport block, a first terminal determines first duration required by the first terminal to perform first LBT, and determines an unavailable resource in a resource selection window based on the first duration; and/or determines second duration required by a second terminal to perform second LBT, and determines an unavailable resource in the resource selection window based on the second duration. The first terminal selects the first transmission resource based on at least one of the first unavailable resource or the second unavailable resource.

公开(公告)号：US12267132B2

公开(公告)日：2025-04-01

申请号：US17730644

申请日：2022-04-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shijie Cai ,  Xueru Li ,  Kunpeng Liu ,  Yongxing Zhou

IPC: H04B7/06

Abstract: This application provides channel state information reporting methods and communications apparatuses. One method includes: generating first indication information and a plurality of groups of second indication information, where the first indication information indicates a plurality of frequency domain component vectors, each group in the plurality of groups of second indication information corresponds to a spatial layer and a plurality of spatial domain component vectors and constructs precoding vectors of the spatial layer in a plurality of frequency bands, and each piece of second indication information in each group corresponds to a spatial domain component vector in the plurality of spatial domain component vectors and indicates at least one of the plurality of frequency domain component vectors that corresponds to the spatial domain component vector; and sending the first indication information and the second indication information.