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公开(公告)号：US20230208536A1
公开(公告)日：2023-06-29
申请号：US18170746
申请日：2023-02-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiang HUO , Zhi YANG , Zhiqiang ZOU
Abstract: A passive intermodulation (PIM) fault point detection method includes sending, by an antenna feeder system of a network device, a plurality of downlink signals of different corresponding frequencies, and receiving a first signal, wherein the first signal is an uplink PIM signal generated by excitation by at least two downlink signals of the plurality of downlink signals. The PIM method further includes determining, by the network device, second signals corresponding to a plurality of detection points, wherein a second signal of the second signals corresponds to a detection point of the plurality of detection points, and is a pre-estimated signal for a PIM signal of the detection point. The PIM method further includes determining, by the network device, a PIM fault point from the plurality of detection points based on the first signal and the second signals corresponding to the plurality of detection points.
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公开(公告)号：US20160381650A1
公开(公告)日：2016-12-29
申请号：US15264163
申请日：2016-09-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiqiang ZOU , Honglin CHAI
CPC classification number: H04W52/52 , H04L7/007 , H04L27/2601 , H04L43/028 , H04W24/02 , H04W52/0209 , H04W52/346 , H04W88/12 , Y02D70/00 , Y02D70/1262
Abstract: The present disclosure relates to a power control method and apparatus, where the method includes: respectively determining, by a base station, error vector magnitude EVM indicator adjustment parameters of n terminals according to terminal types of the n terminals that are currently scheduled; processing, according to the EVM indicator adjustment parameters of the n terminals, to-be-transmitted signals of the n terminals to obtain an output signal, and determining a change of total power of the output signal relative to the to-be-transmitted signals; and dynamically controlling a supply voltage of a power amplifier according to the change of the total power of the output signal relative to the to-be-transmitted signals. According to the power control method and apparatus provided in embodiments of the present disclosure, different processing is performed on signals of different terminals, so that system performance of the OFDM system is improved.
Abstract translation: 本公开涉及一种功率控制方法和装置，其中该方法包括：分别由基站根据当前调度的n个终端的终端类型确定n个终端的误差向量幅度EVM指示符调整参数; 根据n个终端的EVM指示器调整参数来处理n个终端的待传输信号以获得输出信号，以及确定输出信号相对于被发送信号的总功率的变化 ; 并且根据输出信号的总功率相对于被发送信号的变化来动态地控制功率放大器的电源电压。 根据本公开的实施例中提供的功率控制方法和装置，对不同终端的信号进行不同的处理，从而提高OFDM系统的系统性能。
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Patent Agency Ranking
公开(公告)号：US20200374876A1
公开(公告)日：2020-11-26
申请号：US16991602
申请日：2020-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xi CHEN , Zhiqiang ZOU
Abstract: Embodiments of this application disclose a signal receiving method, apparatus, and device. The method includes: receiving a time-domain signal sent by a sending device; replicating the time-domain signal to obtain N time-domain signals; configuring N window functions, where the N window functions are in a one-to-one correspondence with the N time-domain signals; performing an operation on each of the N time-domain signals based on a corresponding window function to obtain N windowed time-domain signals; separately converting the N windowed time-domain signals to obtain N frequency-domain signals; determining an RB corresponding to an interference frequency; selecting several RBs from each of the N frequency-domain signals; and arranging the selected RBs in sequence based on indexes to obtain a target frequency-domain signal.
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公开(公告)号：US20240340830A1
公开(公告)日：2024-10-10
申请号：US18743362
申请日：2024-06-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinna HU , Chuan MA , Yaqi WU , Hengheng WU , Zhiqiang ZOU , Ni MA
CPC classification number: H04W56/0045 , H04W36/362 , H04W56/0015 , H04W76/20
Abstract: The technology of this application relates to a terminal device configured to receive a first message from a first access network device, where the first message is used by the terminal device to obtain a timing advance (TA) of the terminal device in a target cell, and the target cell is not a cell currently accessed by the terminal device. The terminal device is configured to send a second message to the first access network device, where the second message indicates that the terminal device has completed configuration of the target cell. In embodiments of this application, the terminal device is configured to receive the first message from the first access network device.
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公开(公告)号：US20240080116A1
公开(公告)日：2024-03-07
申请号：US18505205
申请日：2023-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhi YANG , Qiang HUO , Yanqing ZHU , Zhiqiang ZOU
IPC: H04B17/345 , H04B17/20
CPC classification number: H04B17/345 , H04B17/204
Abstract: A method for determining a quantity of passive inter-modulation sources. A quantity of passive inter-modulation sources of a multi-antenna device is obtained. An interference signal that is excited by a sounding signal and that is from a passive inter-modulation source is received. Singular value decomposition is performed on a first matrix corresponding to the interference signal. A quantity of passive inter-modulation sources is determined based on a result of the singular value decomposition. In this way, the quantity of passive inter-modulation sources of the multi-antenna device is directly determined by performing operations including signal receiving and sending and calculation of the multi-antenna device, to implement convenient, accurate, and secure detection of information about the quantity of the passive inter-modulation sources of the multi-antenna device.
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公开(公告)号：US20230209496A1
公开(公告)日：2023-06-29
申请号：US18170693
申请日：2023-02-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhi YANG , Qiang HUO , Jinglun WANG , Xi CHEN , Zhiqiang ZOU
IPC: H04W64/00 , H04B7/0456 , H04W24/08 , G01S13/75
CPC classification number: H04W64/00 , H04B7/0456 , H04W24/08 , G01S13/75
Abstract: This application provides a passive inter-modulation source positioning method and an apparatus, and relates to the field of wireless communications technologies. The method includes: A network device sequentially performs a scanning process on each of a plurality of scanning spots by using the following steps: sending a plurality of downlink signals with different frequencies for a first scanning spot by using a transmit antenna, and receiving an uplink PIM signal for the first scanning spot by using a receive antenna, where the first scanning spot is any one of the plurality of scanning spots, and the uplink PIM signal is generated by excitation by any at least two of the plurality of downlink signals; and the network device determines a PIM source from the plurality of scanning spots based on uplink PIM signals respectively corresponding to the plurality of scanning spots.
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公开(公告)号：US20200052946A1
公开(公告)日：2020-02-13
申请号：US16658380
申请日：2019-10-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhiqiang ZOU , Honglin CHAI
IPC: H04L27/26 , H04B7/0456 , H04L5/00
Abstract: Embodiments relate to a signal quality control method and a base station. The method includes: determining, by the base station based on a clipping threshold corresponding to each of the plurality of antennas, a time-domain noise signal for clipping a first time-domain signal of each antenna; performing time-frequency transformation on the time-domain noise signal of each antenna to obtain a first frequency-domain noise signal; processing the first frequency-domain noise signals of the plurality of antennas jointly to decompose the first frequency-domain noise signals into a second frequency-domain noise signal set in L flow directions and/or a third frequency-domain noise signal set in a complementary space of the L flows; and using the second frequency-domain noise signal set and/or the third frequency-domain noise signal set to clip the first time-domain signal set. According to the embodiments, noise signals are processed jointly.
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