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公开(公告)号：US20170238139A1
公开(公告)日：2017-08-17
申请号：US15586750
申请日：2017-05-04
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W4/02 , H04B17/318 , H04B17/336
CPC classification number: H04W4/025 , G01S5/0252 , G01S5/10 , G01S5/14 , H04B17/318 , H04B17/336 , H04W40/20 , H04W64/00 , H04W84/042
Abstract: The present disclosure discloses a method and an apparatus for obtaining location information, and pertains to the field of mobile communications. The method includes: receiving signal features and an identity of a to-be-positioned terminal that are sent by all base stations in multiple base stations, where the signal feature of a base station includes a signal power and an additional feature, and the additional feature includes at least a base station identity of the base station and signal transmission time; determining a relative power set according to signal powers sent by the multiple base stations, where the relative power set includes a relative power between any two base stations in the multiple base stations; and determining, according to the relative power set and additional features sent by the multiple base stations, location information of a terminal corresponding to the identity of the to-be-positioned terminal.
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公开(公告)号：US10684351B2
公开(公告)日：2020-06-16
申请号：US16022495
申请日：2018-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiantao Xue , Anjian Li , Bin Su
Abstract: Embodiments of the present invention provide a terminal device and a positioning system, and relate to the field of communications technologies. The terminal device is configured to: obtain identifiers of at least two antenna elements and attribute information of a reference signal corresponding to each of the at least two antenna elements; receive at least two reference signals based on the attribute information, where the at least two reference signals are sent by corresponding antenna elements of the at least two antenna elements, respectively; obtain positioning information; and send, to the network device, the positioning information and identification information of antenna elements corresponding to the positioning information. Positioning signals obtained by different antenna elements are different, so that the terminal device can identify which antenna element a received positioning signal comes from. Therefore, an improved distributed antenna system can implement terminal device positioning, and improve indoor positioning accuracy.
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3.发明授权公开(公告)号：US10281560B2
公开(公告)日：2019-05-07
申请号：US16022505
申请日：2018-06-28
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present disclosure provide a positioning method based on a time difference of arrival, user equipment, and a network device. The method includes: calculating, by user equipment, a first time difference of arrival RSTD1 based on positioning signals sent by a first base station and a second base station at a same moment; calculating a second time difference of arrival RSTD2 based on known location information of the user equipment; calculating a time alignment error TAE based on the RSTD1 and the RSTD2; and performing, based on the TAE, positioning based on a time difference of arrival TDOA. According to this method, the TAE caused by the base stations is subtracted during positioning calculation. In other words, the time alignment error caused by the base stations is eliminated. Therefore, accuracy of TDOA-based positioning can be ensured.
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公开(公告)号：US09913097B2
公开(公告)日：2018-03-06
申请号：US15586750
申请日：2017-05-04
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W4/02 , H04B17/336 , H04B17/318 , H04W84/04
CPC classification number: H04W4/025 , G01S5/0252 , G01S5/10 , G01S5/14 , H04B17/318 , H04B17/336 , H04W40/20 , H04W64/00 , H04W84/042
Abstract: The present disclosure discloses a method and an apparatus for obtaining location information, and pertains to the field of mobile communications. The method includes: receiving signal features and an identity of a to-be-positioned terminal that are sent by all base stations in multiple base stations, where the signal feature of a base station includes a signal power and an additional feature, and the additional feature includes at least a base station identity of the base station and signal transmission time; determining a relative power set according to signal powers sent by the multiple base stations, where the relative power set includes a relative power between any two base stations in the multiple base stations; and determining, according to the relative power set and additional features sent by the multiple base stations, location information of a terminal corresponding to the identity of the to-be-positioned terminal.
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Patent Agency Ranking
公开(公告)号：US20220198706A1
公开(公告)日：2022-06-23
申请号：US17689642
申请日：2022-03-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Su , Weiping Yuan , Zuguang Wu
IPC: G06T7/73
Abstract: A positioning method, a related apparatus, and a related device, can be applied to vehicle self-driving in the artificial intelligence field A positioning device corrects a low-precision first pose by using N first geometric features extracted from first point cloud data collected by a point cloud collection apparatus to obtain a high-precision second pose. Compared with point cloud data in the prior art, a geometric feature with a small data volume is used for positioning to greatly reduce a data operation amount so that time consumption of vehicle positioning is reduced, and real-time performance of positioning is enhanced.
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6.发明申请公开(公告)号：US20180306897A1
公开(公告)日：2018-10-25
申请号：US16022505
申请日：2018-06-28
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: G01S5/10 , H04L5/0048 , H04W4/029 , H04W24/10 , H04W64/00 , H04W64/003
Abstract: Embodiments of the present disclosure provide a positioning method based on a time difference of arrival, user equipment, and a network device. The method includes: calculating, by user equipment, a first time difference of arrival RSTD1 based on positioning signals sent by a first base station and a second base station at a same moment; calculating a second time difference of arrival RSTD2 based on known location information of the user equipment; calculating a time alignment error TAE based on the RSTD1 and the RSTD2; and performing, based on the TAE, positioning based on a time difference of arrival TDOA. According to this method, the TAE caused by the base stations is subtracted during positioning calculation. In other words, the time alignment error caused by the base stations is eliminated. Therefore, accuracy of TDOA-based positioning can be ensured.
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公开(公告)号：US10732724B2
公开(公告)日：2020-08-04
申请号：US15958380
申请日：2018-04-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiantao Xue , Anjian Li , Bin Su
Abstract: The method is applied to a terminal device, the terminal device stores training sample data, and the training sample data includes a correlation spectrum characteristic vector of a reflected signal of a sounding reference signal (SRS) and a corresponding user gesture identifier. The method includes: transmitting, by the terminal device, a first sounding reference signal (SRS); receiving, by the terminal device, a multipath reflected signal that is of the first sounding reference signal (SRS) and that is reflected from a gesture-making object, and performing a related operation on the reflected signal and a signal template corresponding to the first sounding reference signal (SRS), to obtain a correlation spectrum characteristic vector of the reflected signal; and matching, by the terminal device, the correlation spectrum characteristic vector of the reflected signal against the training sample data, to recognize an input gesture.
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公开(公告)号：US10334393B2
公开(公告)日：2019-06-25
申请号：US16020174
申请日：2018-06-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jiantao Xue , Bin Su , Jie Cui , Anjian Li , Yijie Li
IPC: H04W4/02 , H04W4/33 , H04B17/318
Abstract: Embodiments of the present disclosure provide a floor positioning method and system, and a device, and relate to the communications field. The method includes: receiving a reference signal sent by at least one access point in an indoor environment in which UE is located; determining measurement information based on a polarization direction of the at least one received reference signal, where the measurement information includes at least one access point identifier and a proportion-related value of a vertical polarization direction relative to the polarization direction of the reference signal corresponding to the at least one access point identifier; sending the measurement information to a positioning server; and receiving location information of the UE sent by the positioning server, where the location information of the UE includes a floor location of the UE, and the floor location of the UE is determined based on the measurement information.
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公开(公告)号：US09986531B2
公开(公告)日：2018-05-29
申请号：US15637303
申请日：2017-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Cui , Bin Su , Jiantao Xue , Yijie Li , Anjian Li
CPC classification number: H04W64/006 , G01S5/06 , H04L27/2613 , H04W4/02 , H04W64/00
Abstract: Embodiments of the present invention provide a positioning information processing method and apparatus. The method includes: receiving, by a test terminal, a cell-specific reference signal sent by a base station, and obtaining an original cell-specific reference signal; obtaining, by the test terminal, a multipath characteristic quantity according to the received cell-specific reference signal and the original cell-specific reference signal; and sending, by the test terminal to a server, RSRP, timing information, and a multipath characteristic quantity that are corresponding to each test site, so that the server implements a positioning service.
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