公开(公告)号：US20240114489A1

公开(公告)日：2024-04-04

申请号：US18532189

申请日：2023-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfeng LIU ,  Zhiheng GUO ,  Xinqian XIE

IPC: H04W72/044 ,  H04W72/231 ,  H04W72/541 ,  H04W74/0833 ,  H04W76/20

CPC classification number: H04W72/044 ,  H04W72/231 ,  H04W72/541 ,  H04W74/0833 ,  H04W76/20

Abstract: This application discloses a CLI measurement method and a communication apparatus. The method includes: A terminal device receives resource configuration information from a network device, where the resource configuration information indicates a resource for performing CLI measurement by the terminal device; and when a specific condition is met, the terminal device cancels CLI measurement on at least one symbol including the resource for performing CLI measurement. In this application, an occasion at which the terminal device cancels CLI measurement is specified, to avoid a communication exception caused when a symbol in which the resource for performing CLI measurement by the terminal device is located conflicts with a symbol in which a resource used for another purpose is located.

公开(公告)号：US20220344524A1

公开(公告)日：2022-10-27

申请号：US17725310

申请日：2022-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shuo WANG ,  Kai XIN ,  Yunfeng LIU

IPC: H01L31/0224 ,  H01L31/054 ,  H01L31/046

Abstract: This application provides a solar cell, including a front electrode, a functional layer, and a back electrode. The front electrode is an electrode on a side of an illuminated surface. The front electrode includes a high-conductivity region and a low-conductivity region that are adjacent to each other, or the back electrode includes a high-conductivity region and a low-conductivity region that are adjacent to each other. The front electrode and/or the back electrode may be designed to be separated by region, and conductivity of one conductive region is designed to be higher than conductivity of the other conductive region. This can effectively avoid a film rectangular resistance loss caused by large-scale non-uniform lateral transfer of a photocurrent, and improve photoelectric conversion efficiency of the cell. In addition, cell comprehensive performance can be improved by flexibly selecting materials based on different requirements of different regions in different application scenarios.

公开(公告)号：US20240276460A1

公开(公告)日：2024-08-15

申请号：US18649490

申请日：2024-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfeng LIU ,  Zhiheng GUO ,  Ruixiang MA ,  Xiang GAO ,  Xinqian XIE ,  Xinghua SONG

IPC: H04W72/044 ,  H04L5/16

CPC classification number: H04W72/044 ,  H04L5/16

Abstract: This application provides a communication method and apparatus, to expand coverage of an uplink and reduce a delay. The communication method includes: obtaining first information, where the first information is used to determine a symbol type corresponding to at least one of M subbands on a symbol in a first time domain resource, the M subbands are located in a first frequency domain resource, M is a positive integer, and at least two subbands in the first frequency domain resource correspond to different symbol types on a same symbol in the first time domain resource; and sending a signal and/or receiving a signal through the first frequency domain resource based on the first information.

公开(公告)号：US20240014968A1

公开(公告)日：2024-01-11

申请号：US18363863

申请日：2023-08-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian YU ,  Yunfeng LIU ,  Yawei YU ,  Zhiheng GUO

IPC: H04L5/00 ,  H04W72/0446

CPC classification number: H04L5/0048 ,  H04W72/0446 ,  H04L5/0092

Abstract: A transmission method includes receiving first information from a first network device, receiving second information from the first network device, and transmitting the first data to the first network device based on the first information and the second information.
The first information is useable by the terminal device to divide first data into at least two data blocks. The first data is to-be-transmitted data between the first network device and the terminal device. A quantity of slots occupied by the first data is greater than 1. Each data block of the at least two data blocks is mapped to a different corresponding time-domain position. The second information is useable to indicate at least two modulation and coding schemes (MCSs) useable for transmitting the at least two data blocks, and the at least two MCSs are different from one another.

公开(公告)号：US20220231511A1

公开(公告)日：2022-07-21

申请号：US17658413

申请日：2022-04-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Rongliang SHI ,  Kai XIN ,  Yunfeng LIU

IPC: H02J3/38 ,  H02M1/00

Abstract: A photovoltaic power system includes a DC/AC inverter circuit, N DC/DC converter circuits that are located at a previous stage of the DC/AC inverter circuit and that are respectively connected to photovoltaic strings, and a controller connected to the DC/AC inverter circuit and the N DC/DC converter circuits. The controller is configured to: perform MPPT control on n DC/DC converter circuits, and perform CPG control on (N−n) DC/DC converter circuits. In the two control manners, a fast and accurate power reserve or limit of a photovoltaic string inverter with any illumination intensity and ambient temperature can be implemented, and fluctuation of a DC bus voltage and AC output power of the photovoltaic string inverter can be eliminated. Control on a virtual synchronous generator of the photovoltaic string inverter is implemented, and a lifespan of the photovoltaic string inverter is prolonged, without a need to add an energy storage element.

公开(公告)号：US20200326385A1

公开(公告)日：2020-10-15

申请号：US16913828

申请日：2020-06-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fangcheng LIU ,  Kai XIN ,  Yunfeng LIU

IPC: G01R31/52 ,  H02H7/20

Abstract: A method for processing a direct current electric arc and an apparatus, includes: obtaining a first current which is a direct current input current of a direct current cable of a photovoltaic cell system; obtaining a second current, where the second current is a direct current common mode current of a direct current cable or an alternating current common mode current of an alternating current cable; calculating a correlation coefficient between a frequency domain component of the first current and a frequency domain component of the second current; and when determining that the first current meets an electric arc occurrence condition and the correlation coefficient is greater than or equal to a preset coefficient threshold, skipping sending a direct current electric arc fault alarm. The correlation coefficient is used to reflect a proportion of common mode noise generated by the second current, and the preset coefficient threshold is set.

公开(公告)号：US20170070224A1

公开(公告)日：2017-03-09

申请号：US15354488

申请日：2016-11-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhen CAO ,  Yunfeng LIU ,  Yanzhong ZHANG

IPC: H03K17/567 ,  H03K7/08 ,  H03B28/00 ,  H03K4/08

CPC classification number: H03K17/567 ,  G01R31/026 ,  H03B28/00 ,  H03K4/085 ,  H03K7/08 ,  H03K17/08122 ,  H03K17/122 ,  H03K17/162 ,  H03K17/18

Abstract: A wave loss detection circuit includes: an anode of the diode receives a first drive signal, and a cathode of the diode is connected to a first end of the first resistor; a second end of the first resistor is connected to a first end of the first energy storage unit, a first end of the second resistor, and a first input end of the comparison unit; a second end of the first energy storage unit and a second end of the second resistor are connected to a ground level, and a resistance of the first resistor is less than a resistance of the second resistor; a second input end of the comparison unit is configured to receive a threshold voltage, and if a voltage signal received by the first input end is less than the threshold voltage, which indicates that a wave loss occurs in the first drive signal.

Abstract translation: 波浪损失检测电路包括：二极管的阳极接收第一驱动信号，二极管的阴极连接到第一电阻器的第一端; 第一电阻器的第二端连接到第一能量存储单元的第一端，第二电阻器的第一端和比较单元的第一输入端; 第一能量存储单元的第二端和第二电阻器的第二端连接到地电平，并且第一电阻器的电阻小于第二电阻器的电阻; 比较单元的第二输入端被配置为接收阈值电压，并且如果由第一输入端接收的电压信号小于阈值电压，其指示在第一驱动信号中发生波浪损耗。

公开(公告)号：US20240349264A1

公开(公告)日：2024-10-17

申请号：US18750760

申请日：2024-06-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfeng LIU ,  Zhiheng GUO ,  Ruixiang MA ,  Xinqian XIE ,  Xinghua SONG

IPC: H04W72/0453 ,  H04L5/00 ,  H04L5/14 ,  H04W28/26 ,  H04W72/0446

CPC classification number: H04W72/0453 ,  H04L5/0051 ,  H04L5/1469 ,  H04W28/26 ,  H04W72/0446

Abstract: A communication method and apparatus are provided. A terminal device determines a first time-frequency resource and a second time-frequency resource based on received first configuration information and received second configuration information, and receives a zero-power downlink signal on the first time-frequency resource and the second time-frequency resource; and/or determines a third time-frequency resource and a fourth time-frequency resource based on received third configuration information and received fourth configuration information, and sends a zero-power uplink signal on the third time-frequency resource and the fourth time-frequency resource.

公开(公告)号：US20240323961A1

公开(公告)日：2024-09-26

申请号：US18737104

申请日：2024-06-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfeng LIU ,  Zhiheng GUO ,  Ruixiang MA ,  Xinghua SONG

IPC: H04W72/1273 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/1273 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/0453

Abstract: A communication method and a communication apparatus are provided. The method includes: A terminal determines, from a first time-frequency resource, a target candidate PDSCH reception occasion for receiving a PDSCH, where time domain of the first time-frequency resource corresponds to a first time unit including one or more symbols, a frequency domain resource of the first time-frequency resource includes a plurality of consecutive non-overlapping subbands on one carrier, the one or more symbols in the first time unit have different symbol categories on the plurality of subbands, the target candidate PDSCH reception occasion includes at least one symbol; determines a HARQ-ACK codebook based on a plurality of target candidate PDSCH reception occasions; and sends the HARQ-ACK codebook.

公开(公告)号：US20230018211A1

公开(公告)日：2023-01-19

申请号：US17830153

申请日：2022-06-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ce LIU ,  Xujun LIU ,  Yanding LIU ,  Yunfeng LIU ,  Jinbo MA

IPC: H02J7/00 ,  H01M10/44

Abstract: A charging method, a terminal, a charger, and a system, includes: obtaining, by a terminal, a charging mode supported by a charger connected to the terminal; when the charging mode supported by the charger includes an open-loop fast charging mode, detecting, by the terminal, whether both the terminal and the charger are in an open loop state; when both the terminal and the charger are in the open loop state, sending, by the terminal, an open-loop fast charging instruction to the charger; and receiving, by the terminal, a voltage and a current that are transmitted by the charger according to the open-loop fast charging instruction, and performing charging in the open-loop fast charging mode. When determining that the charger supports charging in the open-loop fast charging mode, the terminal is adjusted to the open loop state to perform charging, so as to shorten a charging time and improve user experience.