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公开(公告)号：US11754658B2
公开(公告)日：2023-09-12
申请号：US17651856
申请日：2022-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alexander Kobzantsev , Doron Ezri , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
Abstract: A radio station, in particular an access point, for client localization in a multipath indoor environment is disclosed. The radio station comprises: a circular antenna array comprising uniform circularly arranged antenna elements; and a processor configured to: transform first input data from the circular antenna array into second input data using a transform that transforms the first steering vector of the circular antenna array into a second steering vector of a virtual linear antenna array; and transform the second input data into third input data by using a transform that transforms the second steering vector of the virtual linear antenna array into a third steering vector of a second virtual linear antenna array, comprising a larger number of antenna elements than the virtual linear antenna array; and determine an angle of arrival based on the third input data.
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Patent Agency Ranking
公开(公告)号：US20220196778A1
公开(公告)日：2022-06-23
申请号：US17651856
申请日：2022-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alexander Kobzantsev , Doron Ezri , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
Abstract: A radio station, in particular an access point, for client localization in a multipath indoor environment is disclosed. The radio station comprises: a circular antenna array comprising uniform circularly arranged antenna elements; and a processor configured to: transform first input data from the circular antenna array into second input data using a transform that transforms the first steering vector of the circular antenna array into a second steering vector of a virtual linear antenna array; and transform the second input data into third input data by using a transform that transforms the second steering vector of the virtual linear antenna array into a third steering vector of a second virtual linear antenna array, comprising a larger number of antenna elements than the virtual linear antenna array; and determine an angle of arrival based on the third input data.
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公开(公告)号：US20220217019A1
公开(公告)日：2022-07-07
申请号：US17703705
申请日：2022-03-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yoav Levinbrook , Doron Ezri , Nadav Basson , Jie Fu
Abstract: A device is configured to calculate a set of channel estimates for a plurality of sub-carriers based on a plurality of pilot-symbols and/or data-symbols carried by said plurality of sub-carriers; calculate a set of equalizers for the plurality of sub-carriers based on the set of channel estimates; perform an equalization on a plurality of data-symbols using the set of equalizers for obtaining a plurality of equalized symbols; perform a soft-slicing or hard-slicing procedure comprising obtaining a plurality of estimated symbols based on the equalized symbols; calculate at least one diagonal-loaded interference-plus-noise covariance matrix, based on the set of estimated symbols; de-map the plurality of data symbols to soft-bits, based on the at least one diagonal-loaded interference-plus-noise covariance matrix, the set of channel estimates or an updated version thereof; and feed the soft-bits to a channel decoder.
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公开(公告)号：US12199685B2
公开(公告)日：2025-01-14
申请号：US17657645
申请日：2022-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alexander Kobzantsev , Doron Ezri , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
IPC: H04B17/12 , H04B7/0413 , H04B7/06 , H04B17/21
Abstract: A Multiple-Input Multiple-Output (MIMO) device comprises an array of multiple antennas and a circuitry configured to receive, using the array of multiple antennas, a plurality of calibration signals from a plurality of proximate wireless MIMO devices, calibrate the wireless MIMO device based on the received calibration signals and based on known directions from the wireless MIMO device to each of the proximate wireless MIMO devices, and drive the array of multiple antennas to emit a beam-formed calibration signal to each of the proximate wireless devices in order to enable each of the proximate wireless MIMO devices to calibrate itself.
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公开(公告)号：US11784852B2
公开(公告)日：2023-10-10
申请号：US17703705
申请日：2022-03-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yoav Levinbook , Doron Ezri , Nadav Basson , Jie Fu
CPC classification number: H04L25/0224 , H04L5/0046 , H04L5/0048
Abstract: A device is configured to calculate a set of channel estimates for a plurality of sub-carriers based on a plurality of pilot-symbols and/or data-symbols carried by said plurality of sub-carriers; calculate a set of equalizers for the plurality of sub-carriers based on the set of channel estimates; perform an equalization on a plurality of data-symbols using the set of equalizers for obtaining a plurality of equalized symbols; perform a soft-slicing or hard-slicing procedure comprising obtaining a plurality of estimated symbols based on the equalized symbols; calculate at least one diagonal-loaded interference-plus-noise covariance matrix, based on the set of estimated symbols; de-map the plurality of data symbols to soft-bits, based on the at least one diagonal-loaded interference-plus-noise covariance matrix, the set of channel estimates or an updated version thereof; and feed the soft-bits to a channel decoder.
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公开(公告)号：US20220224424A1
公开(公告)日：2022-07-14
申请号：US17657645
申请日：2022-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Alexander Kobzantsev , Doron Erzi , Avi Weitzman , Chun Pan , Xingfeng Jiang , Jie Fu
IPC: H04B17/12 , H04B17/21 , H04B7/06 , H04B7/0413
Abstract: A Multiple-Input Multiple-Output (MIMO) device comprises an array of multiple antennas and a circuitry configured to receive, using the array of multiple antennas, a plurality of calibration signals from a plurality of proximate wireless MIMO devices, calibrate the wireless MIMO device based on the received calibration signals and based on known directions from the wireless MIMO device to each of the proximate wireless MIMO devices, and drive the array of multiple antennas to emit a beam-formed calibration signal to each of the proximate wireless devices in order to enable each of the proximate wireless MIMO devices to calibrate itself.
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