公开(公告)号：US20240405839A1

公开(公告)日：2024-12-05

申请号：US18797667

申请日：2024-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bichai WANG ,  Xueru LI

IPC: H04B7/06 ,  H04B10/294 ,  H04W72/0446 ,  H04W72/25

Abstract: The present disclosure relates to beam training methods and communication apparatuses. In one example method, a first UE sends first control information by using a first transmission beam, where the first control information includes resource location information of a first resource. Then, the first UE sends a first reference signal on the first resource by using M transmission beams, where M is a positive integer, the first transmission beam is different from each of the M transmission beams, and the first transmission beam covers each of the M transmission beams.

公开(公告)号：US20220200760A1

公开(公告)日：2022-06-23

申请号：US17690738

申请日：2022-03-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yi WEI ,  Xueru LI ,  Bingyu QU ,  Miao ZHAO

IPC: H04L5/00

Abstract: The present disclosure relates to reference signal sending methods, signal detection methods, and apparatus. One example method includes determining an initial seed parameter of a pseudo-random sequence, and generating the pseudo-random sequence based on the initial seed parameter, where the initial seed parameter is determined based on attribute information of a terminal device, determining a cyclic shift value based on the pseudo-random sequence, and determining a reference signal based on the cyclic shift value, and sending the reference signal to a network device.

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：US20240430039A1

公开(公告)日：2024-12-26

申请号：US18829481

申请日：2024-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ruiyang DUAN ,  Xueru LI

IPC: H04L1/1607 ,  H04L25/02 ,  H04L27/26

Abstract: A signal sending method and a communication apparatus are disclosed. The signal sending method includes: A first communication apparatus determines N sequence sending modes, and sends a first signal based on a first sequence sending mode. The N sequence sending modes include the first sequence sending mode. The sequence sending modes indicate sending orders of N sequences, the N sequences are sent by the first communication apparatus in N periods, and N is a positive integer greater than 1. A cyclic shift value between sending orders indicated by any two adjacent sequence sending modes is 1. The first sequence sending mode is determined based on K second sequence sending modes and the N sequence sending modes, the K second sequence sending modes correspond to a second communication apparatus, and K is a positive integer.

公开(公告)号：US20240365351A1

公开(公告)日：2024-10-31

申请号：US18761795

申请日：2024-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yue WU ,  Xueru LI

IPC: H04W72/40 ,  H04B7/06 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/541

CPC classification number: H04W72/40 ,  H04B7/0626 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/541

Abstract: A method includes determining a candidate resource set, wherein the candidate resource set fails to include a first resource, and an interference power on a second resource associated with the first resource is greater than or equal to a first threshold. A periodic extension resource of the second resource overlaps a resource set corresponding to the first resource. The periodic extension resource of the second resource is determined based on the second resource and a first period of a second communication apparatus. A time domain location of the second resource overlaps a time domain location of a third resource. A frequency domain location of the second resource fails to overlap a frequency domain location of the third resource. An interference power on the second resource is determined based on a power of a signal carried on the third resource and leaked on the second resource.

公开(公告)号：US20240365144A1

公开(公告)日：2024-10-31

申请号：US18763896

申请日：2024-07-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bichai WANG ,  Xueru LI

IPC: H04W24/08

CPC classification number: H04W24/08

Abstract: The present disclosure relates to communication methods. In an example communication method, a first terminal device sends, in a first time unit, a first reference signal used for channel measurement to a second terminal device, where the first time unit is before a second time unit and is associated with the second time unit, and the second time unit is a time unit in which the first terminal device and the second terminal device perform sidelink (SL) transmission. The first terminal device receives, in a third time unit, first feedback information sent by the second terminal device, where the first feedback information is determined by the second terminal device based on the first reference signal, the first feedback information is used to determine a parameter for the SL transmission, and the third time unit is after the first time unit and before the second time unit.

公开(公告)号：US20230128138A1

公开(公告)日：2023-04-27

申请号：US18066478

申请日：2022-12-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xueru LI ,  Mingxin GONG ,  Bingyu QU

IPC: H04B7/06

Abstract: A communication method and a communications apparatus: A network device sends first signaling, where the first signaling is used to configure K1 channel state information-reference signal CSI-RS resources; a terminal device receives the first signaling, and reports channel state information CSI; and the network device receives the CSI, where the CSI includes a channel quality indicator CQI of a first codeword, a channel measurement part used to calculate the CQI of the first codeword is determined based on channel measurement results of K2 CSI-RS resources.