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1.发明授权公开(公告)号：US12253619B2
公开(公告)日：2025-03-18
申请号：US17785625
申请日：2020-12-23
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Dawei Chen , Junqiang Li , Yang Wang , Qian Chen
Abstract: Disclosed are a method and an apparatus for determining time of arrival, a signal receiving device, and a non-transitory computer readable storage medium. The method for determining time of arrival includes: generating time of arrival correction information according to front edge information of theoretical autocorrelation waveforms of positioning signals having different fading values; calculating a front edge slope corresponding to a front edge reference point of a correlation waveform of an actually received signal; and determining target correction information from the time of arrival correction information according to the front edge slope, and determining the time of arrival of the actually received signal based on the target correction information.
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公开(公告)号：US11974259B2
公开(公告)日：2024-04-30
申请号：US17264424
申请日：2018-09-14
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Cheng Bi , Dawei Chen , Yuanyuan Wang
IPC: H04L5/00 , H04W64/00 , H04W72/0446 , H04W72/0453
CPC classification number: H04W72/0453 , H04L5/0048 , H04W64/00 , H04W72/0446
Abstract: Provide are a positioning reference signal generation method and apparatus, a communication system and a storage medium. The method includes: generating a positioning frequency domain sequence according to time-frequency resource information and system configuration information, where the time-frequency resource information includes the number Nprsslot of allocated system symbols consecutive in time, and the system configuration information includes positioning subcarrier spacing Δfprs; and generating, based on the positioning frequency domain sequence, positioning time domain data consecutive in a time period of the Nprsslot consecutive system symbols.
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3.发明授权公开(公告)号：US12200507B2
公开(公告)日：2025-01-14
申请号：US17273344
申请日：2019-09-03
Applicant: ZTE CORPORATION
Inventor： Cheng Bi , Shijun Chen , Dawei Chen , Yuanyuan Wang
Abstract: Provided are a positioning reference signal (PRS) transmission method and apparatus, and a storage medium. A PRS sending end presets PRS blocks having the same number as the number of shaped beams, a corresponding PRS sequence in each PRS block by using a preset sequence generation rule, and each PRS block containing the corresponding PRS sequence is sent according to a preset sending order of the PRS blocks in a polling manner through a shaped beam corresponding to the each PRS block. A PRS receiving end acquires a first PRS block sent by the PRS sending end; and when the first PRS block contains a block index, a sending index of a shaped beam corresponding to the first PRS block corresponding to the block index is determined according to preset correspondence; or when the first PRS block contains no block index, a sending index of a shaped beam corresponding to the first PRS block is determined according to a preset calculation rule. The sending index of the shaped beam is used for determining a time-domain position of the shaped beam.
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4.发明授权公开(公告)号：US12113734B2
公开(公告)日：2024-10-08
申请号：US17262866
申请日：2018-12-03
Applicant: ZTE CORPORATION
Inventor： Cheng Bi , Shijun Chen , Dawei Chen , Yuanyuan Wang
CPC classification number: H04L5/0048 , H04L27/2613 , H04W72/04
Abstract: Provided is a positioning reference signal generation method, which includes the following steps: allocating a time-frequency resource to a positioning reference signal, where the time-frequency resource includes at least two consecutive symbols; and according to generation information of the positioning reference signal and the time-frequency resource, taking the at least two consecutive symbols as a combined PRS symbol to generate the positioning reference signal which is consecutive in a time domain based on a preset generation mode. Further provided are a positioning reference signal generation apparatus, a base station and a readable storage medium.
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公开(公告)号：US12253613B2
公开(公告)日：2025-03-18
申请号：US17783828
申请日：2020-12-23
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Dawei Chen , Yang Wang , Junqiang Li , Qian Chen
IPC: G01S5/02
Abstract: A method and device for determining a time of arrival (TOA), a terminal device, and a non-transitory computer-readable storage medium are disclosed. The method may include: determining a detection start time on a correlation waveform based on a leading edge detection threshold; determining a noise threshold on the correlation waveform, and determining a quasi-TOA according to the detection start time; and determining the TOA according to data information in a target area of the correlation waveform and the noise threshold, where the target area is determined based on the quasi-TOA and a detection length.
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Patent Agency Ranking
公开(公告)号：US11843482B2
公开(公告)日：2023-12-12
申请号：US17436959
申请日：2020-03-06
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Yuanyuan Wang , Dawei Chen , Cheng Bi
CPC classification number: H04L25/0248 , H04L25/022 , H04L25/0224 , H04L27/2672
Abstract: Provided are a multipath separation method and device, and a storage medium. The multipath separation method includes: extracting frequency domain response characteristics of received reference signals in at least two different frequency bands; for each of the at least two different frequency bands, constructing a Toeplitz matrix; combining Toeplitz matrixes corresponding to the at least two different frequency bands; performing singular value decomposition on the synthesized Toeplitz matrix; determining a signal space matrix and a noise space matrix according to the decomposed matrix; constructing a plurality of frequency domain response vectors according to frequency domain response characteristics of local signals having different delays and are the same as the received reference signals; and comparing a first preset threshold with inner products between each of the plurality of frequency domain response vectors and the noise space matrix respectively, and determining a delay corresponding to each of a plurality of frequency domain response vectors in which inner products satisfy the first preset threshold to be a delay of one path in the multipath.
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公开(公告)号：US11706588B2
公开(公告)日：2023-07-18
申请号：US17275747
申请日：2019-09-11
Applicant: ZTE Corporation
Inventor： Cheng Bi , Shijun Chen , Dawei Chen , Yuanyuan Wang
Abstract: A positioning method for a user equipment (UE) and an associated electronic device, the method including after a UE initiates a positioning request, receiving, by the UE, first supplementary information sent by a Location Management Function (LMF), where the first supplementary information comprises Synchronization Signal Block beam polling information of a designated cell reported to the LMF by a Next Generation Radio Access Network, measuring, by the UE, the designated cell to acquire first measurement information, and determining, by the UE, a position of the UE according to the first measurement information and the first supplementary information.
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公开(公告)号：US11425680B2
公开(公告)日：2022-08-23
申请号：US17262695
申请日：2018-09-29
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Dawei Chen , Yuanyuan Wang , Cheng Bi
Abstract: Disclosed is a positioning system. The positioning system includes a positioning signal generation server and a positioning station. The positioning signal generation server is configured to generate a time domain positioning oversampled signal according to a positioning signal parameter and send the time domain positioning oversampled signal to the positioning station. The positioning station is configured to receive the time domain positioning oversampled signal generated by the positioning signal generation server and send the time domain positioning oversampled signal according to sending time information of a positioning signal. Further provided are a positioning signal generation and sending method and a storage medium.
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公开(公告)号：US20220173940A1
公开(公告)日：2022-06-02
申请号：US17436959
申请日：2020-03-06
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Yuanyuan Wang , Dawei Chen , Cheng Bi
Abstract: Provided are a multipath separation method and device, and a storage medium. The multipath separation method includes: extracting frequency domain response characteristics of received reference signals in at least two different frequency bands; for each of the at least two different frequency bands, constructing a Toeplitz matrix; combining Toeplitz matrixes corresponding to the at least two different frequency bands; performing singular value decomposition on the synthesized Toeplitz matrix; determining a signal space matrix and a noise space matrix according to the decomposed matrix; constructing a plurality of frequency domain response vectors according to frequency domain response characteristics of local signals having different delays and are the same as the received reference signals; and comparing a first preset threshold with inner products between each of the plurality of frequency domain response vectors and the noise space matrix respectively, and determining a delay corresponding to each of a plurality of frequency domain response vectors in which inner products satisfy the first preset threshold to be a delay of one path in the multipath.
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公开(公告)号：US11902933B2
公开(公告)日：2024-02-13
申请号：US17611135
申请日：2020-05-11
Applicant: ZTE CORPORATION
Inventor： Shijun Chen , Dawei Chen , Lingfei Jin , Luyan Qian , Jiaming Teng
CPC classification number: H04W64/003 , G01S5/0284 , H04L5/0048
Abstract: A positioning method based on a binary periodic sequence includes: selecting one polynomial from each equivalence class of a quadratic polynomial set S to determine a set T; constructing a binary periodic sequence cluster according to the set T; generating a positioning signal according to the binary periodic sequence cluster; and performing positioning processing according to the positioning signal.
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