公开(公告)号：US20240339068A1

公开(公告)日：2024-10-10

申请号：US18575646

申请日：2022-06-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jialiang Sun ,  Kai Xu ,  Ruizhe Li ,  Menghu Shen

IPC: G09G3/20 ,  G06V40/13 ,  G06V40/60

CPC classification number: G09G3/2092 ,  G06V40/1318 ,  G06V40/67 ,  G09G3/2007 ,  G09G2320/0247 ,  G09G2320/0686 ,  G09G2354/00

Abstract: Embodiments of this application provide a display method and an electronic device. The electronic device includes an application processor, a display driver chip, and a display panel. The display panel is configured to display a first image. The application processor is configured to send first indication information and a first parameter to the display driver chip. The display driver chip is configured to: control, based on the received first indication information, brightness of a fingerprint recognition area in the first image to be first brightness, and control brightness of a mask area in the first image to be second brightness. The brightness of the mask area is controlled based on the first parameter, and the mask area is an area in the first image except the fingerprint recognition area. The display panel is configured to display an updated first image.

公开(公告)号：US20230138567A1

公开(公告)日：2023-05-04

申请号：US18148359

申请日：2022-12-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quanzhong Gao ,  Kai Xu ,  Shaofeng Sun

IPC: H04W16/28 ,  H04W72/04 ,  H04B7/0413

Abstract: A coverage enhancement method and an apparatus are disclosed. The method includes transmitting N first SSB beams in a first SSB beam set on a first initial bandwidth part BWP resource, and transmitting M second SSB beams in a second SSB beam set on a second initial BWP resource, where coverage of the first SSB beam set is located in a first partial area of a sector, coverage of the second SSB beam set is located in a second partial area of the sector, and N and M are positive integers. In this way, complementary coverage of a first SSB beam and a second SSB beam is implemented in the sector.

公开(公告)号：US11102727B2

公开(公告)日：2021-08-24

申请号：US16881867

申请日：2020-05-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Xu ,  Liwen Zhang ,  Lin Zhou ,  Bo Cheng

IPC: H04W52/36 ,  H04W52/14 ,  H04W52/24

Abstract: An uplink control method, includes: determining a downlink path loss based on a first reference signal receive power that is of a serving cell in which the terminal device is located and that is obtained through measurement; receiving a first transmit power and a second transmit power that are sent by the base station; and if the first reference signal receive power is greater than or equal to a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in a first network; or if the first reference signal receive power is less than a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in the first network.

公开(公告)号：US11071142B2

公开(公告)日：2021-07-20

申请号：US16099001

申请日：2016-05-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Xu ,  Xiaocui Li

IPC: H04W74/08 ,  H04W16/14 ,  H04L27/26 ,  H04W72/12

Abstract: An uplink transmission method based on a licensed-assisted access (LAA) system, and an apparatus, where the method includes reserving, for a transmission burst transmitted on an unlicensed carrier, at least one single-carrier frequency-division multiple access (SC-FDMA) symbol in a subframe of an uplink transmission burst corresponding to the transmission burst, where in the reserved at least one SC-FDMA symbol, user equipment (UE) accesses a channel using a listen-before-talk (LBT) access mechanism. Hence, a time gap for accessing the channel through LBT can be reserved for another UE in the uplink transmission burst. This improves a probability of successfully accessing the channel by another UE such that a plurality of UEs in an LAA communications system can perform uplink multiplexing.

公开(公告)号：US10999875B2

公开(公告)日：2021-05-04

申请号：US16608508

申请日：2017-05-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaocui Li ,  Guorong Li ,  Kai Xu ,  Lili Zhang

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/27

Abstract: A random access method and an apparatus include performing listen before talk (LBT) on a first carrier, detecting a first signal on the first carrier when the terminal determines, through the LBT, that the first carrier is in a busy state, where the first carrier includes an unlicensed carrier, the first signal includes a first preamble signal or indication information, and the indication information indicates that the first carrier sends the first preamble signal, and sending a second preamble signal on the first carrier to attempt to access a base station when the terminal detects the first preamble signal or the indication information.

公开(公告)号：US10826670B2

公开(公告)日：2020-11-03

申请号：US16340627

申请日：2016-10-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yanliang Sun ,  Bin Liu ,  Kai Xu ,  Xiaodong Sun

IPC: H04L5/00 ,  H04L1/00 ,  H04W24/10 ,  H04W72/04

Abstract: A signal resource configuration method, a terminal, and an access network device to reduce impact on an existing standard and save Channel State Information Reference Signal (CSI-RS) resources. The method includes obtaining, by the access network device, a 2N-port CSI-RS resource sequence number, and sending, by the access network device, the 2N-port CSI-RS resource sequence number to a terminal device, where the 2N-port CSI-RS resource sequence number notifies the terminal device of an N-port CSI-RS resource in two adjacent physical resource blocks (PRBs), and N is a positive integer.

公开(公告)号：US10548125B2

公开(公告)日：2020-01-28

申请号：US15760134

申请日：2015-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai Xu ,  Xiaocui Li

IPC: H04W72/04 ,  H04W88/04 ,  H04W76/14

Abstract: Embodiments of the present disclosure provide examples of D2D resource allocation methods, devices, and systems. One example method includes receiving, by first UE, a first message sent by second UE, where the first message is used to request to allocate a resource to the second UE, the first UE is UE in a network coverage area of a base station, and the second UE is UE out of the network coverage area of the base station. Resource indication information of a first resource allocated to the second UE is obtained by the first UE according to the first message. A second message is sent by the first UE to the second UE, where the second message carries the resource indication information, and the second UE sends data to the first UE by using the first resource according to the resource indication information.

公开(公告)号：US20190320460A1

公开(公告)日：2019-10-17

申请号：US16088231

申请日：2016-03-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kai Xu ,  Xiaocui Li

IPC: H04W74/00 ,  H04W16/14 ,  H04W74/08 ,  H04L27/26

Abstract: A signal transmission method, a signal transmission control method, a user equipment (UE), and a base station, where the signal transmission method includes performing, by UE, channel detection, and sending, by the UE, uplink data when a result of the channel detection is that a channel is available, where the uplink data includes one or more subframes, at least one subframe includes a sounding reference signal (SRS), and the SRS is located at a start location of the subframe. The signal transmission control method includes sending, by a base station, SRS configuration information to the UE radio resource control (RRC) signaling or physical downlink control signaling (DCI) such that the UE sends an SRS based on the SRS configuration information. Hence, utilization of a channel can be significantly improved.

公开(公告)号：US09961604B2

公开(公告)日：2018-05-01

申请号：US14935093

申请日：2015-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liwen Zhang ,  Kai Xu ,  Yuhong Dai ,  Liang Xu ,  Lin Zhou ,  Xiaoyi Cui

IPC: H04W36/22 ,  H04W64/00 ,  G01S5/02 ,  G01S5/14 ,  H04W36/00 ,  H04W36/14 ,  H04W28/08

CPC classification number: H04W36/22 ,  G01S5/0252 ,  G01S5/14 ,  H04W28/08 ,  H04W36/0061 ,  H04W36/14 ,  H04W64/00

Abstract: Embodiments disclose a radio network information management method and a network device. A radio network information management method is disclosed, where the method includes determining that a user equipment UE exists in a first mobility management unit, and determining radio network information of the first mobility management unit according to measurement statistic information of the UE in the first mobility management unit. It is therefore implemented that a granularity of acquiring and managing radio network information in a cell is per mobility management unit, and for a complex cell coverage environment, difference a neighboring cells between different areas of the cell and difference about interference between different areas of the cell are specified. The embodiments further disclose a network device.

公开(公告)号：US20230126489A1

公开(公告)日：2023-04-27

申请号：US18069812

申请日：2022-12-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai Xu ,  Hongwei Wang ,  Yifan Wang

IPC: H04W52/02 ,  H04W36/00

Abstract: This application provides a communication method and apparatus. The method may include: A cell in a first frequency range determines to enter an energy saving state. A terminal device accesses a cell in a second frequency range through cell selection. When the terminal device needs to enter the cell in the first frequency range, the cell in the second frequency range assists the terminal device in accessing the cell in the first frequency range. In this application, energy saving can be implemented through assistance between a plurality of cells. For example, the cell in the first frequency range may enter the energy saving state. Communication performance can be ensured. For example, the cell in the second frequency range may assist the terminal device in accessing the cell in the first frequency range in the energy saving state.