公开(公告)号：US10721111B2

公开(公告)日：2020-07-21

申请号：US16556946

申请日：2019-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Lei Chen

IPC: H04L1/00 ,  H04L27/26 ,  H04L27/36 ,  H04W72/04 ,  H04W72/12

Abstract: Embodiments of this application provide a communication method and an apparatus. A correspondence between a plurality of MCS indexes and a plurality of modulation schemes is provided to achieve flexible selection of a modulation scheme. In the correspondence, at least one MCS index of the plurality of MCS indexes corresponds to a set modulation schemes which comprises π/2 binary phase shift keying (π/2-BPSK) modulation and quadrature phase shift keying (QPSK) modulation. A first communication device receives a target modulation and coding scheme (MCS) index from a second communication device, determines a target modulation scheme corresponding to the target index number based on the correspondence, and performs communication with the second communication device based on the target modulation scheme.

公开(公告)号：US12255763B2

公开(公告)日：2025-03-18

申请号：US17727132

申请日：2022-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu

IPC: H04L12/00 ,  H04L5/00 ,  H04L27/26

Abstract: Reference signal sequence mapping and de-mapping methods, and an apparatus are provided, to resolve a problem in a conventional technology that time-domain overheads of a reference signal of a single-carrier waveform are relatively large. In this application, a sending device maps a reference signal sequence to a modulation symbol set, to obtain a multiplexing set, where the multiplexing set occupies one single-carrier time domain symbol. Compared with a solution in which a reference signal sequence occupies one single-carrier time domain symbol, the solution in this application reduces time-domain overheads of the reference signal. In addition, to correctly perform channel estimation or channel sounding for the reference signal, different reference signal sequences meet conditions such as orthogonality or conjugate orthogonality, and locations of the reference signal sequences in different multiplexing sets further meet corresponding conditions, and so on.

公开(公告)号：US12213111B2

公开(公告)日：2025-01-28

申请号：US17672095

申请日：2022-02-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei Liu ,  Shitong Yuan ,  Jing Qiu

IPC: H04W56/00 ,  H04W72/0446

Abstract: A resource multiplexing method and apparatus are provided, to determine a set of available symbols in an NR IAB system. A first node determines a time domain position of a DU resource of a communications device, and determines a time domain position of an MT resource of the communications device based on the time domain position and a type of the DU resource and guard interval information. Alternatively, a first node determines a time domain position of an MT resource of a communications device, and determines a time domain position of a DU resource of the communications device based on the time domain position and a type of the MT resource and guard interval information.

公开(公告)号：US12185317B2

公开(公告)日：2024-12-31

申请号：US17665966

申请日：2022-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Qiqi Mao ,  Shitong Yuan ,  Jing Qiu

IPC: H04W72/20

Abstract: This application provides example resource configuration methods, example apparatuses, and example computer-readable storage medium. One example method includes obtaining, by a distributed unit (DU) side of a first node, a first resource configuration and at least one second resource configuration, where the first resource configuration indicates the DU side of the first node to communicate with at least one of a terminal device or a second node by using the first resource configuration, the second resource configuration indicates the DU side of the first node to communicate with the second node by using the second resource configuration, the first node is a relay node, and the second node is a child node of the first node. The DU side of the first node can then communicate with the at least one of the terminal device or the second node.

公开(公告)号：US12069740B2

公开(公告)日：2024-08-20

申请号：US17371895

申请日：2021-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong Yuan ,  Fengwei Liu ,  Jing Qiu ,  Lei Chen

IPC: H04W74/0833 ,  H04W72/0446 ,  H04W72/27 ,  H04W72/51

CPC classification number: H04W74/0841 ,  H04W72/0446 ,  H04W72/27 ,  H04W72/51

Abstract: This present disclosure discloses example random access resource configuration methods, mediums, and apparatuses. One example method includes receiving, by a first network device, configuration information of a first physical random access channel (PRACH) resource. Location adjustment information is received by the first network device, where the location adjustment information is used to indicate to adjust a location of at least a part of the first PRACH resource. A second PRACH resource is determined by the first network device based on the configuration information of the first PRACH resource and the location adjustment information. A random access request is sent by the first network device to a second network device on the second PRACH resource.

公开(公告)号：US20240155627A1

公开(公告)日：2024-05-09

申请号：US18412973

申请日：2024-01-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong Yuan ,  Fengwei Liu ,  Xinghua Song

IPC: H04W72/23 ,  H04L5/00 ,  H04L5/14 ,  H04W72/044

CPC classification number: H04W72/23 ,  H04L5/0035 ,  H04L5/14 ,  H04W72/044 ,  H04W88/085

Abstract: Embodiments of this application disclose a resource configuration method and a communication apparatus. The resource configuration method includes: An integrated access and backhaul mobile terminal (IAB MT) determines a first time division duplex (TDD) configuration based on a first transmission mode. The first transmission mode includes a transmission mode on at least one frequency domain resource set in a plurality of frequency domain resource sets of an integrated access and backhaul distributed unit (IAB DU). The first TDD configuration is a cell-common TDD configuration or a dedicated TDD configuration. The IAB MT determines a resource location based on the first TDD configuration. It can be learned from the technical solution that the IAB MT selects the corresponding TDD configuration based on the transmission mode on the at least one frequency domain resource set, to determine the resource location.

公开(公告)号：US11943086B2

公开(公告)日：2024-03-26

申请号：US17564450

申请日：2021-12-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu ,  Huang Huang

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2607 ,  H04L5/0048 ,  H04L27/2613

Abstract: This application provides a symbol processing method and apparatus. The method includes: obtaining a plurality of complex-valued symbols; dividing the plurality of complex-valued symbols into a plurality of sets, where each set corresponds to one transmitted symbol; and performing a copy operation on the plurality of sets, so that two sets corresponding to two transmitted symbols that are consecutive in time domain have some same complex-valued symbols. By enabling two sets corresponding to two transmitted symbols that are consecutive in time domain to have some same complex-valued symbols, a guard interval between symbols can be flexibly configured when a cyclic prefix length is fixed.

公开(公告)号：US20240040467A1

公开(公告)日：2024-02-01

申请号：US18487947

申请日：2023-10-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei Liu

IPC: H04W40/04 ,  H04W40/12 ,  H04W28/02

CPC classification number: H04W40/04 ,  H04W40/12 ,  H04W28/0215

Abstract: Embodiments of this application provide a signal forwarding method, a relay device, and a communication system, and relate to the field of communication technologies. The relay device determines a first time domain resource based on first resource information; and determines a first forwarding gain corresponding to the first resource information based on an association relationship between a forwarding gain and resource information, where the resource information includes one or more of the following: signal information, channel information, a time domain resource number, backhaul beam information, and access beam information; and forwards a received signal on the first time domain resource by using the first forwarding gain. In this application, the relay device forwards, based on forwarding gains corresponding to different resource information, a signal received on the first time domain resource. A coverage enhancement capability of the relay device can be improved in this manner.

公开(公告)号：US20230421273A1

公开(公告)日：2023-12-28

申请号：US18466838

申请日：2023-09-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04B17/309 ,  H04B7/06 ,  H04W72/23

CPC classification number: H04B17/309 ,  H04B7/06968 ,  H04W72/23

Abstract: This application discloses a channel measurement method and apparatus. A network device sends downlink signaling, to indicate or activate a beam. A terminal device determines the beam indicated or activated by using the downlink signaling, determines, based on an association relationship between a beam and a channel measurement configuration, a channel measurement configuration associated with the beam, performs channel measurement based on the channel measurement configuration, to obtain a channel measurement result, and reports the channel measurement result to the network device. According to the channel measurement solution in this application, when channel quality of a new beam needs to be measured, the network device does not need dedicated signaling to indicate a channel measurement configuration associated with the new beam. When the beam is indicated or activated, the terminal device is triggered to perform channel measurement, to implement low-latency and low-overhead channel measurement.

公开(公告)号：US11848719B2

公开(公告)日：2023-12-19

申请号：US17213803

申请日：2021-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong Yuan ,  Fengwei Liu ,  Lei Chen ,  Jing Qiu

IPC: H04B17/345 ,  H04W24/10

CPC classification number: H04B17/345 ,  H04W24/10

Abstract: This application provides a method for reporting a measurement result of interference measurement, to implement interference management performed by a parent node on a child node in an IAB system. The method includes: performing, by a second node, interference measurement to obtain one or more measurement results, the interference measurement includes interference measurement in a first mode and/or interference measurement in a second mode, and sending, by the second node, an uplink signal to the first node, the uplink signal includes the one or more measurement results, the uplink signal includes an indication field, and the indication field is used to indicate a mode of interference measurement corresponding to each of the one or more measurement results.