Signal communication method and device

    公开(公告)号:US12184573B2

    公开(公告)日:2024-12-31

    申请号:US17640212

    申请日:2020-07-24

    Abstract: The present application discloses a signal transmission method and device that can achieve transmission of sidelink positioning reference signals so as to implement sidelink-based positioning. Embodiments of the present application provide a signal sending method used at a sending end, the method comprising: determining sidelink positioning reference signal (SPRS) resource configuration information of a first terminal on a sidelink; and sending, according to the SPRS resource configuration information, a SPRS to a second terminal via the sidelink, such that the second terminal performs positioning measurement on the basis of the SPRS.

    Clock offset determination method, clock offset processing method, device, and system

    公开(公告)号:US12155461B2

    公开(公告)日:2024-11-26

    申请号:US17440966

    申请日:2020-02-20

    Inventor: Bin Ren Ren Da Hui Li

    Abstract: The present application discloses a clock offset determination method, a clock offset processing method, a device, and a system, used to enable a base station to monitor reference signals, PRS and C-PRS, of a neighboring base station, so as to achieve time synchronization and frequency synchronization between base stations, and to resolve the issue in which a time offset caused by a frequency offset between the base stations results in the degradation of system positioning performance, thereby improving the positioning performance of the system. The clock offset determination method provided in the present application comprises: measuring a carrier-phase positioning reference signal (C-PRS) used to position a carrier phase and transmitted by a transmitter end of a positioning reference signal, so as to obtain a phase measurement value; and determining, on the basis of the phase measurement value, a clock offset between a receiver end and the transmitter end of the positioning reference signal.

    Clock offset determination method and apparatus

    公开(公告)号:US11988754B2

    公开(公告)日:2024-05-21

    申请号:US17773845

    申请日:2020-11-03

    Inventor: Bin Ren

    CPC classification number: G01S19/256 G01S19/252 G01S19/31

    Abstract: Disclosed are a clock offset determination method and apparatus. The clock offset determination method provided in the embodiment of the present application includes: determining, by measuring downlink positioning reference signals (PRS) from a reference base station and a non-reference base station, a first positioning measurement value; determining, on the basis of the first positioning measurement value, a first clock offset between the reference base station and the non-reference base station; and on the basis of the first clock offset, assisting a target terminal to obtain a second clock offset.

    Non-orthogonal multiple access (NOMA) multi-layer transmission method and apparatus therefor

    公开(公告)号:US11923891B2

    公开(公告)日:2024-03-05

    申请号:US17423910

    申请日:2020-01-13

    CPC classification number: H04B1/707

    Abstract: Disclosed are a non-orthogonal multiple access (NOMA) multi-layer transmission method and an apparatus therefor. The method includes: a terminal determines a spread spectrum sequence group for NOMA multi-layer transmission, with the terminal being configured for NOMA multi-layer transmission, and the spread spectrum sequence group includes N spread spectrum sequences, the N spread spectrum sequences correspond to N data layers, the N spread spectrum sequences are mutually orthogonal, N is the number of data layers of NOMA multi-layer transmission, and N is an integer greater than 1; and the terminal sends data, the data comprising the N data layers using the spread spectrum sequence group for spectrum spreading.

    Locating method for uplink time difference of arrival, and apparatus thereof

    公开(公告)号:US11917571B2

    公开(公告)日:2024-02-27

    申请号:US17284383

    申请日:2019-09-30

    CPC classification number: H04W56/006 H04W16/28 H04W24/10 H04W56/005

    Abstract: Disclosed in the present application are a locating method for an uplink time difference of arrival, and an apparatus thereof. The method comprises: a locating server transmits a UTDOA information request message to a serving base station of a target terminal; the locating server receives a UTDOA information response message sent by the serving base station, wherein the UTDOA information response message carries configuration information of a locating reference signal and beam information of a reference signal related the a target terminal; the locating server transmits a measurement information request message to a location measurement unit, wherein the measurement information request message carries auxiliary locating information, the auxiliary locating information comprises the beam information of the reference signal related to the target terminal, or comprises relative information between a transmitting beam of the locating reference signal determined according to the beam information of the reference signal related to the target terminal and a received beam used by the location measurement unit, so that the location measurement unit and the locating server can assist in locating by using the beam information.

    Measurement method and device
    7.
    发明授权

    公开(公告)号:US11201715B2

    公开(公告)日:2021-12-14

    申请号:US17275660

    申请日:2019-09-04

    Abstract: The present application relates to the field of wireless communications, in particular, to a measurement method and device, used for solving the problem in the art that there is no specific solution for a terminal to perform OTDOA measurement in a NR system. In embodiments of the present application, a terminal determines a detected first beam reference signal, and sends a request message to an LMF entity, receive first positioning assistance data comprising second beam information of a second beam reference signal sent by the LMF entity, measure the second beam reference signal of an adjacent base station according to the first positioning assistance data. Therefore, it is ensured that the LMF entity can accurately provide the positioning assistance data to a UE according to first beam information of the first beam reference signal, the time and power consumption of the terminal for searching the second beam reference signal are reduced, and the system performance is further improved.

    Method for positioning, terminal, and network-side device

    公开(公告)号:US12276742B2

    公开(公告)日:2025-04-15

    申请号:US17767921

    申请日:2020-11-09

    Abstract: Disclosed are a method for positioning, a terminal, and a network-side device, which relate to the field of communications and are used to provide a means for positioning in a V2X scenario and simplify a positioning flow in the V2X scenario. In the embodiments of the present application, a first terminal determines position information of a second terminal relative to the first terminal according to received auxiliary positioning information. A means for positioning a peer device by the first terminal in the V2X scenario is provided. With this means, measuring the positions of the first terminal and the second terminal by relying on base stations is avoided, to simplify the flow of positioning the second terminal by the first terminal in the V2X scenario; and the applicability thereof is relatively high.

    Signal transmission method and device

    公开(公告)号:US12095698B2

    公开(公告)日:2024-09-17

    申请号:US17623520

    申请日:2020-06-30

    CPC classification number: H04L5/0051 H04L5/005 H04L27/26025 H04L27/2613

    Abstract: The present application discloses a signal transmission method and a device, for achieving PRS transmission supporting different bandwidths and numerology. The embodiment of the present application provides a signal transmission method, the method includes: receiving and measuring a cell-level cell-specific first positioning reference signal PRS in a cell public measurement window, to obtain a first positioning measurement value, and applying to the network side for a terminal-level UE-specific second PRS resource in a non-cell public measurement window based on the first positioning measurement value; receiving and measuring the UE-specific second PRS in the non-cell public measurement window, to obtain a second positioning measurement value; determining and reporting a third positioning measurement value based on the first positioning measurement value and the second positioning measurement value.

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