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Patent Agency Ranking
公开(公告)号：US20230344529A1
公开(公告)日：2023-10-26
申请号：US18343119
申请日：2023-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chaohui YANG , Cong CHEN , Linlin WANG , Weihong XIAO
IPC: H04B17/12
CPC classification number: H04B17/12
Abstract: Embodiments of this application disclose an antenna calibration method and system. The system includes a baseband processing unit, a remote radio unit, an antenna array, and a coupled antenna. The antenna array sends a radio frequency calibration signal sent by the baseband processing unit, or receive the radio frequency calibration signal. The remote radio unit provides a plurality of transmission channels, where the plurality of transmission channels correspond to a plurality of transmission ports. The coupled antenna receives the radio frequency calibration signal sent by the baseband processing unit, and transmit a coupled signal corresponding to the radio frequency calibration signal to the baseband processing unit, or send the radio frequency calibration signal. The baseband processing unit calibrates, based on a difference between the radio frequency calibration signal and the coupled signal, a plurality of to-be-sent baseband signals corresponding to the plurality of transmission channels.
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公开(公告)号：US20230238986A1
公开(公告)日：2023-07-27
申请号：US18192047
申请日：2023-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei RUAN , Xuqiang SHEN , Theng Tee YEO , Lu LI , Cong CHEN
IPC: H04B1/00
CPC classification number: H04B1/0078 , H04B1/006 , H04B2001/0408
Abstract: Embodiments of this application provide a short-range communications apparatus, a chip, and a control method. The apparatus includes: a gain unit, coupled to an antenna; a first radio frequency RF receive channel, coupled to the gain unit; a first baseband processor, coupled to the first RF receive channel, and configured to receive a first signal from the antenna through the first RF receive channel; a second RF receive channel, coupled to the gain unit; and a second baseband processor, coupled to the second RF receive channel, and configured to receive a second signal from the antenna through the second RF receive channel.
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公开(公告)号：US20230309030A1
公开(公告)日：2023-09-28
申请号：US18325369
申请日：2023-05-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei RUAN , Cong CHEN , Jinghui LIU
CPC classification number: H04W52/42 , H04W52/241 , H04W52/245
Abstract: Embodiments of this application disclose a power control method, and a communication device and system, relating to the field of wireless communication technologies. The method is applied to a first communication apparatus that supports transmission of a plurality of spatial streams. The method includes sending measurement indication information to a second communication apparatus to indicate to the second communication apparatus to perform channel quality measurement on a channel between the first communication apparatus and the second communication apparatus. Each of the plurality of spatial streams occupies a plurality of subbands on the channel. The method further includes receiving a channel quality measurement result fed back by the second communication apparatus, where the channel quality measurement result includes subband measurement information of each subband on the channel. The method further includes selectively performing, based on the subband measurement information, power water filling on subbands occupied by the plurality of spatial streams.
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公开(公告)号：US20230275786A1
公开(公告)日：2023-08-31
申请号：US18314849
申请日：2023-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei RUAN , Ting wu WANG , Qian WANG , Dan WANG , Cong CHEN
CPC classification number: H04L25/0242 , H04L27/34
Abstract: This application discloses a Wi-Fi communication method and a device, and relates to the field of wireless communication technologies. In the method, a first communication device is configured to: generate a first physical frame, and send the first physical frame. The first physical frame includes signaling information and a plurality of training sequences used for channel estimation, the signaling information indicates a quantity of space-time streams and a quantity of the plurality of training sequences, and the quantity of the plurality of training sequences is greater than the quantity of space-time streams. This helps improve accuracy of an algorithm such as channel estimation in a communication system, to improve a demodulation capability of a communication device, and ensure data demodulation effect.
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公开(公告)号：US20210227147A1
公开(公告)日：2021-07-22
申请号：US17227007
申请日：2021-04-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Cong CHEN , Chengtao ZHOU , Yongyi WANG , Kenji ISHIBASHI
Abstract: Embodiments of this application disclose a focusing method and apparatus applied to a terminal device, and the terminal device. The method includes: detecting whether a current frame includes a target object, where the target object is one of preset objects on which focusing needs to be performed; when the current frame includes the target object, determining whether the target object is in a motion state; when the target object is in the motion state, performing tracking focusing by using phase detection PD information with a variable filtering length; and when the target object is in a static state, performing stable focusing by using PD information obtained in an adaptive fixed PD configuration mode.
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