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    Positioning Using Synthesized Wideband Channel Estimation and Synchronized Receivers
    12.
    发明公开
    Positioning Using Synthesized Wideband Channel Estimation and Synchronized Receivers 审中-公开

    公开(公告)号：US20240048412A1

    公开(公告)日：2024-02-08

    申请号：US18488927

    申请日：2023-10-17

    Applicant: PhasorLab, Inc.

    Inventor： Joshua C. Park ,  Paul Christopher McFarthing ,  Jian Cui

    IPC: H04L25/02 ,  H04W4/029 ,  H04L5/00

    CPC classification number: H04L25/0224 ,  H04L25/0242 ,  H04W4/029 ,  H04L5/0048

    Abstract: A method of positioning using a shortest path based on a synthesized wideband channel estimate is described. In some embodiments, a method is disclosed, comprising: distributing an uplink schedule to a plurality of synchronized nodes; continuously capturing a reference signal across a plurality of carrier frequencies until frequency coverage for the synthetic wide band is achieved; removing frequency offset; calculating a plurality of channel estimates for the captured reference signal; aligning the plurality of channel estimates; combining the plurality of channel estimates to construct a single channel estimate of the synthetic wide band; deriving a shortest delay for the received reference signal; and using the derived shortest delay to estimate a time of arrival and thereby determine an estimated location.

    Network Location Service
    13.
    发明申请
    Network Location Service 有权

    公开(公告)号：US20230134224A1

    公开(公告)日：2023-05-04

    申请号：US18046153

    申请日：2022-10-12

    Applicant: Parallel Wireless, Inc. ,  PhasorLab, Inc.

    Inventor： Prashanth Rao ,  Joshua C. Park

    IPC: H04W4/029 ,  H04W24/10 ,  H04L5/00

    Abstract: A method is disclosed of providing a 5G network location service, comprising: receiving, at a gNodeB, a measurement request from a Location Management Function (LMF) device; initiating, by the gNodeB in response to receiving the measurement request, a location determining SRS; sending, by the gNodeB, a Sounding Reference Signal (SRS) schedule to a master Hyper Speed Network (HSN) node; receiving, by the gNodeB, a message having the User equipment (UE) location; and using, by the gNodeB, the UE location as an NG-Radio Access Network (NG-RAN) Access Point location in a measurement response.

    Positioning Using Synthesized Wideband Channel Estimation and Synchronized Receivers
    14.
    发明申请
    Positioning Using Synthesized Wideband Channel Estimation and Synchronized Receivers 有权

    公开(公告)号：US20220294669A1

    公开(公告)日：2022-09-15

    申请号：US17695819

    申请日：2022-03-15

    Applicant: PhasorLab, Inc.

    Inventor： Joshua C. Park ,  Paul Christopher McFarthing ,  Jian Cui

    IPC: H04L25/02 ,  H04L5/00 ,  H04W4/029

    Abstract: A method of positioning using a shortest path based on a synthesized wideband channel estimate is described. In some embodiments, a method is disclosed, comprising: distributing an uplink schedule to a plurality of synchronized nodes; continuously capturing a reference signal across a plurality of carrier frequencies until frequency coverage for the synthetic wide band is achieved; removing frequency offset; calculating a plurality of channel estimates for the captured reference signal; aligning the plurality of channel estimates; combining the plurality of channel estimates to construct a single channel estimate of the synthetic wide band; deriving a shortest delay for the received reference signal; and using the derived shortest delay to estimate a time of arrival and thereby determine an estimated location.

    RF Carrier Synchronization and Phase Alignment Methods and Systems
    16.
    发明申请
    RF Carrier Synchronization and Phase Alignment Methods and Systems 有权
    RF载波同步和相位对准方法和系统

    公开(公告)号：US20160219544A1

    公开(公告)日：2016-07-28

    申请号：US15090338

    申请日：2016-04-04

    Applicant: PhasorLab, Inc.

    Inventor： Joshua C. Park

    IPC: H04W56/00 ,  G01S3/18 ,  H04W64/00

    CPC classification number: H04W56/006 ,  G01S3/18 ,  H04B7/0413 ,  H04L7/0016 ,  H04L25/02 ,  H04L27/0014 ,  H04L27/364 ,  H04L2027/003 ,  H04L2027/0046 ,  H04L2027/0053 ,  H04L2027/0067 ,  H04W56/0035 ,  H04W64/006

    Abstract: Systems and methods are disclosed for synchronization and positioning, one of which comprises determining a first phase offset for a known signal received at a first antenna by plotting a first arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the first arbitrary set of phase corrections, determining a second phase offset for a known signal received at a second antenna by plotting a second arbitrary set of phase corrections and finding a phase offset corresponding to a greatest reflectional symmetry within the second arbitrary set of phase corrections, calculating an angle of arrival for the known signal from the transmitter based on the first and the second phase offset for the known signal as received at the first antenna and the second antenna, and calculating a positioning vector for a direction of the transmitter.

    Abstract translation: 公开了用于同步和定位的系​​统和方法，其中之一包括通过绘制第一任意一组相位校正来确定在第一天线处接收到的已知信号的第一相位偏移，并且找出对应于最大反射对称的相位偏移 第一任意的相位校正集合，通过绘制第二任意的相位校正集合并且找出对应于第二任意组相位校正中的最大反射对称性的相位偏移来确定在第二天线处接收到的已知信号的第二相位偏移， 根据在第一天线和第二天线处接收到的已知信号的第一和第二相位偏移，计算来自发射机的已知信号的到达角度，以及计算发射机方向的定位矢量。

    RF Carrier Synchronization and Phase Alignment Methods and Systems
    17.
    发明申请
    RF Carrier Synchronization and Phase Alignment Methods and Systems 有权
    RF载波同步和相位对准方法和系统

    公开(公告)号：US20150295703A1

    公开(公告)日：2015-10-15

    申请号：US14727859

    申请日：2015-06-01

    Applicant: PhasorLab, Inc.

    Inventor： Joshua C. Park

    IPC: H04L7/00 ,  H04L25/02 ,  H04B7/04 ,  H04L27/00

    CPC classification number: H04W56/006 ,  G01S3/18 ,  H04B7/0413 ,  H04L7/0016 ,  H04L25/02 ,  H04L27/0014 ,  H04L27/364 ,  H04L2027/003 ,  H04L2027/0046 ,  H04L2027/0053 ,  H04L2027/0067 ,  H04W56/0035 ,  H04W64/006

    Abstract: A method comprising generating a baseband information signal by mixing a received modulated carrier signal with a local oscillator (LO) signal having an LO frequency; obtaining baseband signal samples of the baseband information signal having a baseband signal magnitude and a baseband signal phase; determining a cumulative phase measurement associated with baseband signal samples having a baseband signal magnitude greater than a threshold; and, applying a correction signal to compensate for an LO frequency offset of the LO frequency based on the cumulative phase.

    Abstract translation: 一种方法，包括通过将接收到的调制载波信号与具有LO频率的本地振荡器（LO）信号混合来产生基带信息信号; 获得具有基带信号幅度和基带信号相位的基带信号信号的基带信号样本; 确定与具有大于阈值的基带信号幅度的基带信号样本相关联的累积相位测量; 并且基于累积相位施加校正信号以补偿LO频率的LO频率偏移。

    Positioning using synthesized wideband channel estimation and synchronized receivers
    18.
    发明授权
    Positioning using synthesized wideband channel estimation and synchronized receivers 有权

    公开(公告)号：US11792049B2

    公开(公告)日：2023-10-17

    申请号：US17695819

    申请日：2022-03-15

    Applicant: PhasorLab, Inc.

    Inventor： Joshua C. Park ,  Paul Christopher McFarthing ,  Jian Cui

    IPC: H04L25/02 ,  H04W4/029 ,  H04L5/00

    CPC classification number: H04L25/0224 ,  H04L5/0048 ,  H04L25/0242 ,  H04W4/029

    Abstract: A method of positioning using a shortest path based on a synthesized wideband channel estimate is described. In some embodiments, a method is disclosed, comprising: distributing an uplink schedule to a plurality of synchronized nodes; continuously capturing a reference signal across a plurality of carrier frequencies until frequency coverage for the synthetic wide band is achieved; removing frequency offset; calculating a plurality of channel estimates for the captured reference signal; aligning the plurality of channel estimates; combining the plurality of channel estimates to construct a single channel estimate of the synthetic wide band; deriving a shortest delay for the received reference signal; and using the derived shortest delay to estimate a time of arrival and thereby determine an estimated location.

    Sounding Signals for Sub-Meter Base Station Localization
    19.
    发明申请
    Sounding Signals for Sub-Meter Base Station Localization 有权

    公开(公告)号：US20210360552A1

    公开(公告)日：2021-11-18

    申请号：US17323772

    申请日：2021-05-18

    Applicant: Parallel Wireless, Inc. ,  PhasorLab, Inc.

    Inventor： Ramesh Annavajjala ,  Efi Dror ,  Steven Paul Papa ,  Joshua C. Park ,  Soumendra Nanda ,  Prashanth Rao

    IPC: H04W56/00 ,  H04W88/16 ,  H04W16/32 ,  H04L5/00 ,  H04W48/16

    Abstract: Systems and methods are disclosed for providing base station localization. In one embodiment the system includes a network including a base station such as a 5G gNodeB (gNB); a Hetnet Gateway (HNG) in communication with the gNB, wherein the HNG includes a location server and wherein the HNG virtualizes and abstracts a collection of base stations and provides a complex network under its purview as a simple base station to a mobile packet core network; a plurality of Hyper Sync Network (HSN) nodes in communication with the gNB and the HNG, wherein the plurality of HSN nodes listen to User Equipments (UEs) to locate the UEs and to synchronize clocks on the gNB with the collection of HSN nodes or other gNBs; and an Evolved Serving Mobile Location Center (E-SMLC) server in communication with the HNG and for reporting the location of a UE.

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