公开(公告)号：US20220271805A1

公开(公告)日：2022-08-25

申请号：US17741143

申请日：2022-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinyu GAO ,  Kunpeng LIU

IPC: H04B7/0456 ,  H04L5/00

Abstract: This application provides a channel information obtaining method and a communications apparatus, to reduce pilot overheads and a delay of obtaining channel information. The method includes: A terminal device receives one or more first reference signals on a dth port of the terminal device, where the first reference signal is a reference signal from a first network device. The terminal device obtains a first channel vector h1,d based on the received first reference signal, where h1,d is a channel vector of a channel between the dth port of the terminal device and the first network device. The terminal device receives N second reference signals on the dth port of the terminal device. The terminal device obtains a second channel vector h2,d based on the received second reference signal.

公开(公告)号：US20220224577A1

公开(公告)日：2022-07-14

申请号：US17696444

申请日：2022-03-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyu QU ,  Xianda LIU ,  Mingxin GONG ,  Kunpeng LIU

IPC: H04L27/26 ,  H04L5/00 ,  H04L27/20

Abstract: The present disclosure relates to signal processing methods and apparatus. One example method includes determining a first sequence {x(n)} based on a preset condition, generating a reference signal of a first signal by using the first sequence, and sending the reference signal on a first frequency-domain resource. The preset condition is y n = A · e j × π × s n 8 , x n = A · e j × π × s n 8 , a length of the first sequence is K=6, n=0, 1, . . . , K−1, A is a non-zero complex number, and j=√{square root over (−1)}. The first signal is a signal modulated by using π/2 binary phase shift keying (BPSK). The first frequency-domain resource comprises K subcarriers each having a subcarrier number of k, k=u+L*n+delta, L is an integer greater than or equal to 2, delta∈{0, 1, . . . , L−1}, u is an integer, and subcarrier numbers of the K subcarriers are numbered in ascending or descending order of frequencies.

公开(公告)号：US20220174523A1

公开(公告)日：2022-06-02

申请号：US17672397

申请日：2022-02-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda LIU ,  Kunpeng LIU ,  Lixia XUE ,  Xiang GAO ,  Xu ZHANG

IPC: H04W24/08 ,  H04W72/12 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00

Abstract: This application provides methods and apparatuses for determining a hybrid automatic repeat request-acknowledgment (HARQ-ACK) resource. One method includes: determining at least one physical downlink control channel (PDCCH) monitoring occasion, wherein HARQ-ACK feedback bits scheduled by using downlink control information (DCI) monitored on the at least one PDCCH monitoring occasion are carried on a same physical uplink control channel (PUCCH) resource; and determining, based on index values of a control-resource set group corresponding to first DCI, target DCI indicating the PUCCH resource, wherein the first DCI is on a last PDCCH monitoring occasion in the at least one PDCCH monitoring occasion, and wherein the control-resource set group comprises one or more control-resource sets.

公开(公告)号：US20220158792A1

公开(公告)日：2022-05-19

申请号：US17587417

申请日：2022-01-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xianda LIU ,  Kunpeng LIU

IPC: H04L5/00 ,  H04B7/0413

Abstract: Example demodulation reference signal (DMRS) port indication methods and apparatus are described. In one example method, a network device determines DMRS port indication information, and sends the DMRS port indication information. The DMRS port indication information is used to indicate a DMRS port set, and the DMRS port set is one of a plurality of DMRS port sets. A first subset of the plurality of DMRS port sets are first DMRS port sets, and DMRS ports in each first DMRS port set belong to a plurality of CDM groups. A second subset of the plurality of DMRS port sets are second DMRS port sets, and at least one DMRS port in each second DMRS port set belongs to a same CDM group.

公开(公告)号：US20220149924A1

公开(公告)日：2022-05-12

申请号：US17585148

申请日：2022-01-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04B7/06 ,  H04W76/19 ,  H04W72/12 ,  H04W72/04 ,  H04W72/08 ,  H04L1/18

Abstract: The present disclosure provides example information reporting method and apparatuses. One example method includes determining reporting content based on a priority rule, when there is a reporting conflict between a beam failure recovery request (BFRQ) and at least one piece of information, where the at least one piece of information includes a scheduling request (SR), and the priority rule includes that a priority of the BFRQ is higher than a priority of the SR. The reporting content is sent on a first time-frequency resource, where the reporting content includes the BFRQ but not the SR.

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：US20220149901A1

公开(公告)日：2022-05-12

申请号：US17584731

申请日：2022-01-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04B7/0408

Abstract: The present disclosure provides example communication method and apparatuses. One example method includes obtaining first spatial relation parameter information, where the first spatial relation parameter information is spatial relation parameter information of a first target signal, and the first spatial relation parameter information includes a resource index of a first reference signal. First transmission information is determined based on the resource index of the first reference signal, where the first transmission information includes at least one of first antenna panel information or a first spatial characteristic parameter. The first target signal is received or sent based on the first transmission information.

公开(公告)号：US20220038145A1

公开(公告)日：2022-02-03

申请号：US17488588

申请日：2021-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang GAO ,  Kunpeng LIU

IPC: H04B7/0456

Abstract: A communication method and apparatus. The method includes: a terminal device receives a first parameter from a network device, where the first parameter is used to determine indication information of a first precoding matrix and a second parameter, and the second parameter is used to determine indication information of a second precoding matrix; and then, the terminal device sends the indication information of the second precoding matrix to the network device. The method and the apparatus may be used to determine indication information of a precoding matrix when a rank indicator value reported by the terminal device is 3 or 4.

公开(公告)号：US20210385832A1

公开(公告)日：2021-12-09

申请号：US17403437

申请日：2021-08-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04W72/12 ,  H04W80/02 ,  H04L1/16 ,  H04B7/08

Abstract: Embodiments of this application provide an information indication method and apparatus, to implement indication of transmission configuration indication information and data transmission in a multi-beam transmission scenario. In the method and the apparatus, a network device sends configuration information to a terminal device, to configure M transmission configuration indicator TCI states; the network device sends first indication information to the terminal device, where the first indication information is used to indicate A TCI states in the M TCI states; the network device sends second indication information to the terminal device, to indicate a first codepoint, where the first codepoint is determined by the network device based on at least one TCI state and according to a preset mapping rule between a TCI state and a codepoint; and the network device communicates with the terminal device based on the at least one TCI state.

公开(公告)号：US20210351825A1

公开(公告)日：2021-11-11

申请号：US17371425

申请日：2021-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Di ZHANG ,  Kunpeng LIU

IPC: H04B7/06 ,  H04B17/309

Abstract: This application provides a channel state information transmission method and apparatus. The method includes: receiving N reference signal groups, where N is an integer greater than or equal to 2; and sending channel state information, where the channel state information includes a first resource index, a second resource index, and first channel quality information, the first resource index is a resource index of a first reference signal, the second resource index is a resource index of a second reference signal, the first reference signal and the second reference signal are reference signals in different groups in the N reference signal groups.