Positioning reference signal transmission method and apparatus, device, and storage medium

    公开(公告)号:US12200507B2

    公开(公告)日:2025-01-14

    申请号:US17273344

    申请日:2019-09-03

    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.

    Method for determining time difference of arrival, and communication device and system

    公开(公告)号:US11496985B2

    公开(公告)日:2022-11-08

    申请号:US17266224

    申请日:2018-09-17

    Abstract: A method for determining a time difference of arrival, and a communication device and system, where neighbor cells for positioning are determined for a target terminal by a positioning server, then cell identities of the neighbor cells and beam polling configuration information of the neighbor cells are transmitted to the target terminal, so that the target terminal may detect a Positioning Reference Signal (PRS) beam transmitted by a corresponding neighbor cell according to the beam polling configuration information, and a time difference of arrival of PRS beams transmitted by one neighbor cell and another neighbor cell is calculated.

    Multipath separation method and device, and storage medium

    公开(公告)号:US11843482B2

    公开(公告)日:2023-12-12

    申请号:US17436959

    申请日:2020-03-06

    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.

    Positioning method and apparatus for UE

    公开(公告)号:US11706588B2

    公开(公告)日:2023-07-18

    申请号:US17275747

    申请日:2019-09-11

    CPC classification number: H04W4/029 H04W24/08

    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.

    Positioning system, positioning signal generation and sending method, and storage medium

    公开(公告)号:US11425680B2

    公开(公告)日:2022-08-23

    申请号:US17262695

    申请日:2018-09-29

    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.

    MULTIPATH SEPARATION METHOD AND DEVICE, AND STORAGE MEDIUM

    公开(公告)号:US20220173940A1

    公开(公告)日:2022-06-02

    申请号:US17436959

    申请日:2020-03-06

    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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