RECONFIGURABLE INTELLIGENT SURFACE (RIS) AIDED ROUND-TRIP-TIME (RTT)-BASED USER EQUIPMENT (UE) POSITIONING

    公开(公告)号:US20240319359A1

    公开(公告)日:2024-09-26

    申请号:US18546051

    申请日:2022-01-25

    IPC分类号: G01S13/76 H01Q3/46 H01Q15/14

    摘要: Disclosed are techniques for positioning. In an aspect, a positioning entity receives a report indicating an operation mode of a reconfigurable intelligent surface (RIS) associated with at least one base station, receives a transmission-to-reception (Tx-Rx) time difference measurement for a network node involved in a round-trip-time (RTT) positioning session with a user equipment (UE), determines a reception-to-transmission (Rx-Tx) time difference measurement for the UE, the Rx-Tx time difference measurement representing a difference between a reception time at the UE of a downlink positioning reference signal from the RIS and a transmission time from the UE of an uplink positioning reference signal towards the RIS, and calculates a distance between the UE and the RIS based, at least in part, on the Tx-Rx time difference measurement and the Rx-Tx time difference measurement.

    Transmission control device, vehicle system, transmission control method, and control program product

    公开(公告)号:US11899096B2

    公开(公告)日:2024-02-13

    申请号:US17316462

    申请日:2021-05-10

    申请人: DENSO CORPORATION

    发明人: Kenji Kato

    IPC分类号: G01S13/76 H01Q1/32 B60R25/24

    摘要: A transmission control device, which drives multiple antennas having different transmission ranges, includes: a genuine transmission control unit that transmits, from a genuine transmission antenna with use of a carrier wave, a genuine code for activating a portable device; and an inversion transmission control unit that transmits, from an inversion transmission antenna with use of a carrier wave, an inversion code including at least partial inverted genuine code concurrently with a transmission of the genuine code from the genuine transmission antenna. The inversion transmission antenna has a transmission range which does not overlap with a transmission range of the genuine transmission antenna.

    Secondary radar improving aerial safety via very-long-range ADS-B detection

    公开(公告)号:US11867796B2

    公开(公告)日:2024-01-09

    申请号:US17364026

    申请日:2021-06-30

    申请人: THALES

    摘要: The secondary radar includes an antenna having a radiation pattern forming a sum channel, designated SUM, a radiation pattern forming a difference channel, designated DIFF, and a pattern forming a control channel, designated CONT, the targets are located by implementing the following steps: detecting ADS-B squitters received via the CONT channel, via the SUM channel and via the DIFF channel; measuring at least the power of the squitters and their azimuth with respect to the radar; the location of a target transmitting ADS-B squitters being computed by exploiting at least the detection of one ADS-B squitter, in light of the latitudinal and longitudinal position of the radar and of the azimuthal measurement with respect to the radar, the position cell, designated the CPR cell, coded in the squitter being selected via the azimuthal measurement.

    Dual frequency ranging with calculated integer wavelength delays in RF environments

    公开(公告)号:US11719806B2

    公开(公告)日:2023-08-08

    申请号:US17230210

    申请日:2021-04-14

    IPC分类号: G01S13/76 G01S7/295

    CPC分类号: G01S13/762 G01S7/295

    摘要: The embodiments described herein provide ranging capabilities in RF-opaque environments, such as a jungle, utilizing transponders located on a property line. In particular, the embodiments described herein provide for determining a perpendicular distance to a property line from a ranging device. The transponders are located on the property line and a separated from each other by a known distance. The ranging device transmits RF signals to the transponders, which are received by the transponders and re-broadcasted back to the ranging device on a different frequency. The ranging device uses information about the transmitted and received RF signals and the known distance to calculate a perpendicular distance from the ranging device to the property line.

    PROCESSING MODULE AND ASSOCIATED METHOD
    109.
    发明申请

    公开(公告)号:US20180254925A1

    公开(公告)日:2018-09-06

    申请号:US15897763

    申请日:2018-02-15

    申请人: NXP B.V.

    摘要: A processing module for a transmitter device configured to provide for generation of a signal comprising at least one frame for transmission by the transmitter device to a receiver device, the processing module configured to provide for processing of an input pulse stream comprising a stream of pulses representative of data, to provide an output pulse stream, each pulse of the pulse streams having one of two states defining the phase with which a carrier wave is modulated; the processing module configured to; divide the input pulse stream into consecutive groups of pulses; and for each group of pulses, based on determination that the first two or more consecutive pulses of the group have the same polarity, provide for addition of at least one dummy pulse to the group directly after the first two or more consecutive pulses, with an opposite polarity.

    HOLONOMICALLY CONSTRAINED (TETHERED) SPIN-AROUND LOCATOR
    110.
    发明申请
    HOLONOMICALLY CONSTRAINED (TETHERED) SPIN-AROUND LOCATOR 审中-公开
    全自动限制(旋转)旋转定位器

    公开(公告)号:US20160091601A1

    公开(公告)日:2016-03-31

    申请号:US14870644

    申请日:2015-09-30

    申请人: Lawrence J. Karr

    发明人: Lawrence J. Karr

    摘要: An improved two-way tagging tracking and locating system uses time of arrival (TOA), Doppler, and angle of arrival (AOA) in conjunction with remote tags and a locator. The locator's antenna is tethered to a central point, and moved in a constrained motion so that it describes a roughly circular horizontal path. The locator transmits and receives sets of complex radio sequences to/from the tag(s) so that the tag(s) emit signals which are phase, chip, and symbol coherent with the received locator signals. This enables the locator to determine the distances and Doppler shifts between itself and the tag(s) at various positions in its path such that, by post correlation processing of complex captured signal sequences, aims a virtual phased array antenna at the tag(s), resulting in enhanced distance and direction measurements. The angular position of the orbiting locator's antenna may be measured using an electronic compass packaged with the antenna.

    摘要翻译: 改进的双向标签跟踪和定位系统结合远程标签和定位器使用到达时间(TOA),多普勒和到达角(AOA)。 定位器的天线被束缚到中心点,并且以有限的运动移动,使得它描述了一个大致圆形的水平路径。 定位器向/从标签发送和接收复合无线电序列集合,使得标签发射与接收到的定位信号相位相关的芯片和码元的信号。 这使得定位器能够确定其与其路径中各个位置处的标签之间的距离和多普勒频移,使得通过复合捕获信号序列的后置相关处理,将虚拟相控阵列天线瞄准标签, ,从而增加距离和方向测量。 轨道定位器天线的角位置可以使用与天线一起包装的电子罗盘进行测量。