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公开(公告)号：US11991534B2
公开(公告)日：2024-05-21
申请号：US17752308
申请日：2022-05-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Feng , Yiwei Hong
IPC: H04W16/28 , H04B7/0456 , H04B7/06 , H04W72/0453
CPC classification number: H04W16/28 , H04B7/0456 , H04B7/0617 , H04W72/0453
Abstract: This application provides example signal processing methods, media, and apparatuses. One example method includes obtaining a scattering parameter matrix of passive echoes in an antenna system by a network device. The m virtual user directions are determined by the network device based on the scattering parameter matrix of the passive echoes, where the m virtual user directions are m directions in which total signal strength of the passive echoes is highest, and m is a positive integer. A target beam is formed based on n real user directions and the m virtual user directions, where one or more nulls of the target beam are aligned with the m virtual user directions, n is a positive integer, and n+m≤k.
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公开(公告)号：US20190140605A1
公开(公告)日：2019-05-09
申请号：US16241674
申请日：2019-01-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiwei Hong , Xianglin Li , Yuxiang Xiao
Abstract: Embodiments of the present disclosure provide a digital predistortion processing apparatus, where the apparatus includes an analog-to-digital conversion unit and n digital predistortion elements. The analog-to-digital conversion unit is connected to the n digital predistortion elements. Each digital predistortion element is configured to receive n input signals, perform digital predistortion processing on the n input signals, and then output n processed signals. The analog-to-digital conversion unit is configured to receive the n processed signals, perform signal extraction based on the n processed signals, and output an extracted signal, where a rate of the extracted signal is the same as a rate of each of the n processed signals. For an ultra-large-bandwidth signal, DPD correction may be performed without increasing a technical level of existing components such as an FPGA and an ADC, thereby greatly reducing implementation costs.
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公开(公告)号：US10985705B2
公开(公告)日：2021-04-20
申请号：US16696130
申请日：2019-11-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Vorobyev Andrey , Yiwei Hong , Ting Li
IPC: H03F1/32 , H04B1/04 , H04B17/336 , H04L27/36
Abstract: The present disclosure relates to pre-distortion processing methods and apparatus. One example apparatus includes a first pre-distortion part and a second pre-distortion part. The first pre-distortion part includes N digital pre-distortion (DPD) processors. The first pre-distortion part and the second pre-distortion part perform pre-distortion processing on a signal to support a power amplifier in performing linear amplification on the signal.
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公开(公告)号：US10749485B2
公开(公告)日：2020-08-18
申请号：US16241674
申请日：2019-01-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yiwei Hong , Xianglin Li , Yuxiang Xiao
Abstract: Embodiments of the present disclosure provide a digital predistortion processing apparatus, where the apparatus includes an analog-to-digital conversion unit and n digital predistortion elements. The analog-to-digital conversion unit is connected to the n digital predistortion elements. Each digital predistortion element is configured to receive n input signals, perform digital predistortion processing on the n input signals, and then output n processed signals. The analog-to-digital conversion unit is configured to receive the n processed signals, perform signal extraction based on the n processed signals, and output an extracted signal, where a rate of the extracted signal is the same as a rate of each of the n processed signals. For an ultra-large-bandwidth signal, DPD correction may be performed without increasing a technical level of existing components such as an FPGA and an ADC, thereby greatly reducing implementation costs.
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