公开(公告)号：US11303387B2

公开(公告)日：2022-04-12

申请号：US16668934

申请日：2019-10-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Chen ,  Fengwei Liu

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

Abstract: The present disclosure relates to signal transmission methods and apparatus. One example method includes receiving, by a terminal device, modulation and coding scheme (MCS) information sent by a network device, determining a modulation order used by the terminal device for data transmission, where the modulation order is determined based on the MCS information sent by the network device, information about a waveform used by the terminal device, and a preset correspondence between an MCS index and a modulation order, and transmitting data based on the determined modulation order.

公开(公告)号：US10779244B2

公开(公告)日：2020-09-15

申请号：US16673422

申请日：2019-11-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Lei Chen ,  Jing Qiu

IPC: H04W52/36 ,  H04J11/00 ,  H04L27/26

Abstract: A power headroom transmission method and a device are provided. The transmission method is applied to a terminal device that supports use of two different types of waveform for data transmission, the terminal sends a first power headroom information and ΔM, wherein the first power headroom information is used to indicate power headroom of the terminal device when data is transmitted by using the first waveform, ΔM is a difference between a first maximum power and a second maximum power of the terminal device, the first maximum is a maximum power when using the first waveform, the second maximum is a maximum power when using the second waveform.

公开(公告)号：US12155516B2

公开(公告)日：2024-11-26

申请号：US17849336

申请日：2022-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Minghui Xu ,  Bo Huang

IPC: H04L27/26 ,  H04L5/00

Abstract: This application discloses a reference signal determining method and an apparatus. The method includes a first device determines a first reference signal sequence in a reference signal sequence set. The first device maps the first reference signal sequence to a first symbol sequence, and sends a first reference signal corresponding to the first reference signal sequence to a second device based on the first symbol sequence. The first reference signal sequence is used by the second device to estimate impact of phase noise on a received signal, and the impact of the phase noise on the received signal includes at least one of inter-subcarrier interference, a common phase error, and the phase noise. The reference signal sequence set includes at least a first-type reference signal sequence. A time-domain amplitude variance and a frequency-domain amplitude variance of the first-type reference signal sequence each meet a preset threshold.

公开(公告)号：US12143839B2

公开(公告)日：2024-11-12

申请号：US17213999

申请日：2021-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Ye ,  Xiaoyong Tang ,  Fengwei Liu

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/541

Abstract: This application provides an interference measurement method and apparatus. A second functional entity of an interference-generating node sends, by using one or more beams corresponding to a reference signal resource identifier of a first functional entity of the interference-generating node, a reference signal used for interference measurement, so that an interfered node can perform interference measurement.

公开(公告)号：US12041006B2

公开(公告)日：2024-07-16

申请号：US17213484

申请日：2021-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Lei Chen ,  Jing Qiu

IPC: H04L5/00 ,  H04W72/0446

CPC classification number: H04L5/0053 ,  H04W72/0446

Abstract: This application provides a data transmission method and an apparatus, to improve resource utilization. The method includes: A first node obtains reference information, where the reference information includes information about a first subcarrier spacing and information about a first backhaul resource. The first node transmits data on a second backhaul resource by using a second subcarrier spacing, where the second backhaul resource includes one or more sub-resources, each of the one or more sub-resources includes M resource units, M is an integer greater than 1, M is determined based on the first subcarrier spacing and the second subcarrier spacing, the second subcarrier spacing is greater than the first subcarrier spacing, and the second backhaul resource is a subset of the first backhaul resource.

公开(公告)号：US20240214253A1

公开(公告)日：2024-06-27

申请号：US18597437

申请日：2024-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Minghui Xu ,  Jiayin Zhang

IPC: H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/26025

Abstract: A communication method and apparatus are provided. A terminal obtains first information and second information, the first information is used to determine a length of a first-type symbol component, the second information is used to determine at least one of a length of a second-type symbol component and a length of a third-type symbol component, and the length of the first-type symbol component is greater than the length of the third-type symbol component. The terminal determines a plurality of signal blocks based on the first information and the second information, and processes each of the plurality of signal blocks to obtain an OFDM symbol corresponding to the signal block and sends the OFDM symbol.

公开(公告)号：US11991112B2

公开(公告)日：2024-05-21

申请号：US17565669

申请日：2021-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Huang Huang

IPC: H04L5/00 ,  H04L25/03 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04L25/03012 ,  H04L25/03343 ,  H04L27/2628

Abstract: This application provides a symbol processing method and apparatus. The method includes obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmitted symbol and a second set corresponding to a second transmitted symbol, performing a copy operation on the first set and the second set so both the first set and the second set have first complex-valued symbols, and a first subset start location including the first complex-valued symbols in the first set is the same as a second subset start location including the first complex-valued symbols in the second set; and performing signal processing including a cyclic shift or frequency domain weighting on the first set and the second set. The start location and an end location of the first subset respectively correspond to locations preceding and following a first reference point of the first transmitted symbol.

公开(公告)号：US20240146372A1

公开(公告)日：2024-05-02

申请号：US18410726

申请日：2024-01-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Lei Chen ,  Xiaoyu Luo ,  Gao Xiang

IPC: H04B7/06

CPC classification number: H04B7/0617

Abstract: A channel information obtaining method and a communication apparatus are provided. The method includes: a network device sends reference signals to a terminal device by using a plurality of antenna unit groups, where at least two antenna unit groups of the plurality of antenna unit groups belong to one antenna port; and the network device receives first information from the terminal device, where the first information indicates channel information corresponding to the plurality of antenna unit groups, so as to improve accuracy of obtained channel information.

公开(公告)号：US20240089778A1

公开(公告)日：2024-03-14

申请号：US18510674

申请日：2023-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bo Fan ,  Hongrui Zhou ,  Xi Zhang ,  Lei Chen ,  Fengwei Liu ,  Shitong Yuan

IPC: H04W24/10

CPC classification number: H04W24/10

Abstract: This application provides a communication method and apparatus. The communication method includes: receiving measurement configuration information from a network device, where the measurement configuration information is used to configure a channel measurement resource and M interference measurement resources, and M is a positive integer greater than or equal to 1; and sending a bitmap to the network device, where the bitmap includes one or more bits, each bit corresponds to one or more interference measurement resources and has a value indicating interference of the one or more interference measurement resources to the channel measurement resource, and the M interference measurement resources include the one or more interference measurement resources.

公开(公告)号：US11864132B2

公开(公告)日：2024-01-02

申请号：US17212536

申请日：2021-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Lei Chen ,  Jing Qiu

IPC: H04W56/00 ,  H04W24/02

CPC classification number: H04W56/001 ,  H04W24/02

Abstract: This specification discloses signal configuration methods and apparatuses. One method includes: sending, by a first node of a wireless system, a synchronization signal block (SSB) at a set of candidate locations of SSBs, wherein the SSB is used by a second node of the wireless system to detect or measure the SSB; receiving, by the first node, SSB optimization configuration information comprising an identifier of the SSB; determining, by the first node, a subset of the set of candidate locations based on the SSB optimization configuration information; and sending, by the first node, the SSB at the subset of the set of candidate locations.