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1. 发明申请

US20220394588A1 Self-Organizing Hyper Sync Network 有权
公开(公告)号：US20220394588A1
公开(公告)日：2022-12-08
申请号：US17805451
申请日：2022-06-03
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Paul McFarthing , Jian Cui , Devang Topiwala , Pranay Kumar Eedara , Yongsoon Lee
IPC分类号： H04W40/04 , H04L45/17 , H04L45/122 , H04L45/00
摘要： A self-organizing mesh network system is disclosed, comprising: at least one master node generating a timing reference signal; a plurality of regular nodes deriving time synchronization from the timing reference signal; and a wireless medium for communicating location and timestamp information among the plurality of regular nodes, The plurality of regular nodes may be configured to each use communicated location and timestamp information of nearby nodes to independently generate a location map of the nearby nodes. The plurality of regular nodes may be configured to accept an additional regular node. The plurality of regular nodes may be configured to allow a node of the plurality of regular nodes to exit the plurality of regular nodes. The plurality of regular nodes may each use communicated location and timestamp information of the plurality of regular nodes to independently generate a location map of each of the plurality of regular nodes.

2. 发明授权

US10856242B2 Wireless time and frequency lock loop system 有权
公开(公告)号：US10856242B2
公开(公告)日：2020-12-01
申请号：US15820427
申请日：2017-11-21
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Glen Wolverton
IPC分类号： H04W56/00 , H04L12/26 , H04L5/00 , H04W84/20
摘要： Systems and methods for wireless synchronization are disclosed. In one embodiment, a method is disclosed for synchronizing a slave device to a master device, comprising: receiving, at a local device, a master device reference signal in the form of a modulated radio frequency (RF) signal from a master device; receiving, at the local device, a master device time stamp from the master device; computing a time offset of the master device reference signal relative to a local reference oscillator signal of a local oscillator, using the master device time stamp; computing a frequency offset of the master device reference signal relative to the local reference oscillator signal; generating a local reference oscillator control signal based on the computed time offset and the computer frequency offset; and adjusting the local reference oscillator to maintain a frequency and time lock with the master device reference signal at the local device.

3. 发明申请

US20200309531A1 Synthetic Mega Gyroscope 审中-公开
公开(公告)号：US20200309531A1
公开(公告)日：2020-10-01
申请号：US16835298
申请日：2020-03-30
申请人： PhasorLab, Inc.
发明人： Jian Cui , Joshua C. Park
IPC分类号： G01C21/18 , G01C19/34 , G01P15/14
摘要： Systems and methods are disclosed herein for blind frequency synchronization. In one embodiment, a synthetic inertial measurement unit (IMU) is disclosed, comprising: a plurality of nodes wirelessly coupled to each other, each The method may further comprise: a wireless transceiver at a particular node for providing wireless communications with at least one other node of the plurality of nodes, configured to receive I and Q radio samples from the other node, and to determine a frequency offset of the other node based on the received I and Q radio samples, and to synchronize a clock at the particular node, a frequency offset synchronization module at the particular node coupled to the wireless transceiver, at the particular node, and an IMU sensor for determining rotation, acceleration, and speed of the particular node; and an IMU location estimation module for using time of arrival information assuming that the clock may be synchronized at the node, the determined distance, and the rotation, acceleration, and speed of the particular node received from the IMU sensor to determine the location of the nodes, thereby providing enhanced determination of location of the plurality of nodes.

4. 发明申请

US20180146443A1 Wireless Time and Frequency Lock Loop System 审中-公开
公开(公告)号：US20180146443A1
公开(公告)日：2018-05-24
申请号：US15820427
申请日：2017-11-21
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Glen Wolverton
IPC分类号： H04W56/00 , H04L5/00 , H04L12/26
CPC分类号： H04W56/001 , H04L5/0048 , H04L5/0053 , H04L43/0864 , H04L43/106 , H04W84/20
摘要： Systems and methods for wireless synchronization are disclosed. In one embodiment, a method is disclosed for synchronizing a slave device to a master device, comprising: receiving, at a local device, a master device reference signal in the form of a modulated radio frequency (RF) signal from a master device; receiving, at the local device, a master device time stamp from the master device; computing a time offset of the master device reference signal relative to a local reference oscillator signal of a local oscillator, using the master device time stamp; computing a frequency offset of the master device reference signal relative to the local reference oscillator signal; generating a local reference oscillator control signal based on the computed time offset and the computer frequency offset; and adjusting the local reference oscillator to maintain a frequency and time lock with the master device reference signal at the local device.

5. 发明申请

US20170227623A1 Angle of Arrival Measurements Using RF Carrier Synchronization and Phase Alignment Methods 审中-公开
公开(公告)号：US20170227623A1
公开(公告)日：2017-08-10
申请号：US15495972
申请日：2017-04-24
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Cuneyt Demirdag , Glen Wolverton , Devang Topiwala , Paul McFarthing
IPC分类号： G01S3/48 , H04L7/00
CPC分类号： G01S3/48 , G01S3/18 , G01S3/46 , H04B7/0413 , H04B7/0617 , H04B7/0802 , H04B7/086 , H04B7/10 , H04L7/0016 , H04L25/02 , H04L27/0014 , H04L2027/003 , H04L2027/0046 , H04L2027/0053 , H04L2027/0067 , H04W56/0035
摘要： A method for determining an angle of arrival (AOA) of a received signal is disclosed, comprising: generating a baseband information signal by mixing a received signal with a local oscillator (LO) signal, the received signal being an in-phase signal and quadrature signal uncorrelated with each other and derived from different input data sets; obtaining baseband signal samples of the baseband information signal having an in-phase signal sample and a quadrature signal sample; determining a transmitter phase offset based on an estimated correlation between the in-phase signal samples and the quadrature signal samples; performing a plurality of phase measurements using a plurality of antennas to obtain a plurality of phase measurements; correcting the plurality of phase measurements based on the transmitter phase offset to produce a plurality of corrected phase measurement; and calculating an AOA of the received signal based on the difference between the plurality of corrected phase measurements.

6. 发明申请

US20230134224A1 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
申请人： Parallel Wireless, Inc. , PhasorLab, Inc.
发明人： Prashanth Rao , Joshua C. Park
IPC分类号： H04W4/029 , H04W24/10 , H04L5/00
摘要： 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.

7. 发明申请

US20220294669A1 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
申请人： PhasorLab, Inc.
发明人： Joshua C. Park , Paul Christopher McFarthing , Jian Cui
IPC分类号： H04L25/02 , H04L5/00 , H04W4/029
摘要： 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.

8. 发明申请

US20180206075A1 High-Resolution High-Dynamic Range Doppler-Effect Measurement Using Modulated Carrier Signals 审中-公开
公开(公告)号：US20180206075A1
公开(公告)日：2018-07-19
申请号：US15873842
申请日：2018-01-17
申请人： PhasorLab, Inc.
发明人： Cuneyt Demirdag , Joshua C. Park , Glen Wolverton , Devang Topiwala
IPC分类号： H04W4/02 , G01S13/58
CPC分类号： H04W4/023 , G01S3/48 , G01S5/0257 , G01S11/10 , G01S13/584 , H04B7/0413 , H04W4/027 , H04W4/46 , H04W84/005
摘要： Described in this document are ways to accomplish high resolution and high dynamic range Doppler-Effect measurements for use in wireless communications and other applications such as positioning. Doppler Effect (interchangeably called Doppler shift or Doppler frequency shift) measurements have traditionally been done with purpose-built devices, such as pulse-based radars. Presented in this document are alternative ways to incorporate Doppler frequency shift measurement using modulated carrier signals with a conventional radio, without additional hardware.

9. 发明申请

US20160219544A1 RF Carrier Synchronization and Phase Alignment Methods and Systems 有权
标题翻译： 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
申请人： PhasorLab, Inc.
发明人： Joshua C. Park
IPC分类号： H04W56/00 , G01S3/18 , H04W64/00
CPC分类号： 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
摘要： 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.
摘要翻译：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。

10. 发明申请

US20150295703A1 RF Carrier Synchronization and Phase Alignment Methods and Systems 有权
标题翻译： 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
申请人： PhasorLab, Inc.
发明人： Joshua C. Park
IPC分类号： H04L7/00 , H04L25/02 , H04B7/04 , H04L27/00
CPC分类号： 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
摘要： 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.
摘要翻译：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。

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