-
公开(公告)号：US20190394748A1
公开(公告)日：2019-12-26
申请号：US16433155
申请日：2019-06-06
Applicant: NXP B.V.
Inventor： Ghiath Al-kadi , Michael Schober , Ulrich Andreas Muehlmann , Brima Babatunde Ibrahim
IPC: H04W64/00 , H04W4/80 , H04L1/16 , H04W56/00 , H04W24/10 , H04B17/318 , H04B17/336
Abstract: In accordance with a first aspect of the present disclosure, a method for determining the position of a node in a communication network is conceived, wherein said network comprises said node and a plurality of anchors, the method comprising: the node transmits a poll message to the plurality of anchors; a first anchor of said plurality transmits a response message to the node and to one or more other anchors of said plurality of anchors; a processing unit calculates the position of the node using timing information of the poll message transmission by the node, of the poll message reception by the plurality of anchors, of the response message transmission by the first anchor, and of the response message reception by the node and the other anchor or anchors. In accordance with other aspects of the present disclosure, a corresponding computer program and a corresponding system for determining the position of a node in a communication network is provided.
-
公开(公告)号：US12282106B2
公开(公告)日：2025-04-22
申请号：US18181645
申请日：2023-03-10
Applicant: NXP B.V.
Inventor： Sunil Dilipkumar Jogi , Purnank Harjivanbhai Ghumalia , Michael Schober , Stefan Lemsitzer , Srivathsa Masthi Parthasarathi , Guillaume Lepoittevin
Abstract: Disclosed are methods and devices for, UWB, ranging of a target using a plurality of antenna arrays. The method comprises: determining a first RSSI, from a first antenna of a first antenna arrays, and a second RSSI from a second antenna of a second antenna arrays; in response to the first RSSI being larger than the second RSSI, selecting the first antenna array, and selecting the second antenna array otherwise; using the selected antenna array, performing a UWB ranging measurement including measuring an angle of arrival of the signal from the target; including, if the angle of arrival of the signal from the target is out of range: selecting a different one of the plurality of antennae arrays, as a presently-selected antenna array; and, using that antenna array, performing a UWB ranging measurement including measuring an angle of arrival of the signal from the target.
-
公开(公告)号：US12015277B2
公开(公告)日：2024-06-18
申请号：US17814589
申请日：2022-07-25
Applicant: NXP B.V.
Inventor： Ulrich Andreas Muehlmann , Michael Schober
CPC classification number: H02J50/001 , G01R19/2503 , H04B1/40
Abstract: A sensor node is provided having a radio frequency (RF) circuit and a sensor interface circuit. The RF circuit wirelessly harvests energy from an external device such as a smart phone to produce a voltage at an output to charge a storage capacitor. The sensor interface circuit is configured to communicate with a sensor. In response to a request from the external device, the sensor node provides a voltage level of the capacitive element to the external device. The external device uses the voltage level to determine capabilities of the sensor node and to control sensing functions of the sensor node. In another embodiment, a method is provided to operate the sensor node.
-
4.发明授权公开(公告)号：US11877256B2
公开(公告)日：2024-01-16
申请号：US17458752
申请日：2021-08-27
Applicant: NXP B.V.
Inventor： Michael Schober , Christian Eisendle , Ghiath Al-kadi
CPC classification number: H04W64/00 , H04W56/0015
Abstract: In accordance with a first aspect of the present disclosure, a method is conceived for determining the position of at least one node in a communication network, wherein the communication network comprises a localization system that includes a processing unit, a primary anchor and at least one secondary anchor, the method comprising: the primary anchor transmits a poll message to the node and to the secondary anchor; the primary anchor receives a response message from the node; the secondary anchor receives said poll message from the primary anchor and said response message from the node; the processing unit calculates the position of the node using position information and timing information, wherein said position information is position information of the primary anchor and of the secondary anchor, and wherein said timing information is timing information of the poll message transmission by the primary anchor, of the poll message reception by the node and the secondary anchor, of the response message transmission by the node, and of the response message reception by the primary anchor and the secondary anchor.
-
5.发明授权公开(公告)号：US11822000B2
公开(公告)日：2023-11-21
申请号：US17453594
申请日：2021-11-04
Applicant: NXP B.V.
Inventor： Michael Schober , Pablo Corbalán Pelegrín , Shengyang Xu
IPC: G01S5/04 , G01S3/48 , G01S3/46 , G01S3/02 , H04B1/7163
CPC classification number: G01S3/48 , G01S3/46 , G01S3/023 , H04B1/7163
Abstract: A method is provided for estimating a signal's angle of arrival (AOA) in a communications system. Starting values for each of a horizontal AOA and a vertical AOA are estimated. The estimated vertical AOA starting value is used to select a horizontal PDOA trace of horizontal PDOA calibration data. The selected horizontal PDOA trace is interpolated to determine a best horizontal AOA estimate for a current iteration. The estimated horizontal AOA starting value is used to select a vertical PDOA trace of vertical PDOA calibration data. The selected vertical PDOA trace is interpolated to determine a best vertical AOA estimate for the current iteration. After each iteration, determining if a maximum number of iterations has been reached or if the best horizontal or vertical AOA estimate has not changed by a predetermined amount. When one of these is true, the best horizontal and vertical AOA estimates are used.
-
Patent Agency Ranking
公开(公告)号：US20230305137A1
公开(公告)日：2023-09-28
申请号：US18181645
申请日：2023-03-10
Applicant: NXP B.V.
Inventor： Sunil Dilipkumar Jogi , Purnank Harjivanbhai Ghumalia , Michael Schober , Stefan Lemsitzer , Srivathsa Masthi Parthasarathi , Guillaume Lepoittevin
IPC: G01S13/76
CPC classification number: G01S13/767
Abstract: Disclosed are methods and devices for, UWB, ranging of a target using a plurality of antenna arrays. The method comprises: determining a first RSSI, from a first antenna of a first antenna arrays, and a second RSSI from a second antenna of a second antenna arrays; in response to the first RSSI being larger than the second RSSI, selecting the first antenna array, and selecting the second antenna array otherwise; using the selected antenna array, performing a UWB ranging measurement including measuring an angle of arrival of the signal from the target; including, if the angle of arrival of the signal from the target is out of range: selecting a different one of the plurality of antennae arrays, as a presently-selected antenna array; and, using that antenna array, performing a UWB ranging measurement including measuring an angle of arrival of the signal from the target.
-
公开(公告)号：US20250119220A1
公开(公告)日：2025-04-10
申请号：US18886404
申请日：2024-09-16
Applicant: NXP B.V.
Inventor： Michael Schober , Pablo Corbalán Pelegrín , Manuel Lafer
Abstract: There is described a communication device, configured to perform a single-sided two-way-ranging, SS-TWR, communication with a further communication device, the communication device comprising a control device being configured to: i) transmit a first SS-TWR signal to the further communication device, ii) receive a second SS-TWR signal, associated with the first SS-TWR signal, from the further communication device, iii) evaluate a carrier frequency offset of the received second SS-TWR signal, and iv) determine, based on the evaluation, if an attack is performed to the SS-TWR communication.
-
公开(公告)号：US12273835B2
公开(公告)日：2025-04-08
申请号：US17651949
申请日：2022-02-22
Applicant: NXP B.V.
Inventor： Michael Schober , Frank Leong , Dominik Doedlinger
IPC: H04W56/00 , H04W12/122
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: a communication unit configured to execute a time-of-flight ranging session with an external communication counterpart; a clock offset measurement unit configured to measure a frequency offset of a device clock, wherein said device clock is configured to be used by the communication unit when said ranging session is executed; a processing unit configured to determine whether the measured frequency offset of the device clock has a predefined correlation with a frequency offset of a counterpart clock, wherein said counterpart clock is configured to be used by the external communication counterpart when said ranging session is executed. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
-
公开(公告)号：US12196840B2
公开(公告)日：2025-01-14
申请号：US17819332
申请日：2022-08-12
Applicant: NXP B.V.
Inventor： Dominik Doedlinger , Michael Schober , Christian Eisendle
Abstract: There is described a method of determining a time of arrival of a signal at a UWB ranging device comprising a first antenna, the signal being transmitted by another UWB ranging device, the method comprising: determining a first channel impulse response based on at least a part of the signal received at the first antenna; determining a first time value as an earliest point in time at which the amplitude of the first channel impulse response exhibits a peak value; setting a candidate time value to the first time value; determining a first upper value as the amplitude of the first channel impulse response at a time value corresponding to the candidate time value plus a predetermined upper time value; determining a second upper value as the peak value plus a predetermined upper amplitude value; determining a first lower value as the amplitude of the first channel impulse response at a time value corresponding to the candidate time value minus a predetermined lower time value; determining a second lower value as the peak value minus a predetermined lower amplitude value; determining, as a first condition, whether the first upper value is larger than the second upper value; determining, as a second condition, whether the first lower value is smaller than the second lower value; and if at least one of the first condition and the second condition is not fulfilled, setting the time of arrival to the candidate time value. Furthermore, a UWB ranging device and a UWB system are described.
-
公开(公告)号：US20240288556A1
公开(公告)日：2024-08-29
申请号：US18170024
申请日：2023-02-16
Applicant: NXP B.V.
Inventor： Michael Schober , David Veit , Stefan Tertinek
IPC: G01S7/4865 , H04B1/7163
CPC classification number: G01S7/4865 , H04B1/71637
Abstract: A method is provided for estimating a time-of-flight (TOF) in a wireless communication between first and second devices. The method includes receiving a signal, transmitted from the second device, at first and second antennas of the first device. The second antenna is spaced apart from the first antenna on the first device. A difference in arrival time of the received signal at the first antenna and at the second antenna is computed by the first device. A non-line-of-sight (NLOS) signal path of the received signal in a TOF estimation is compensated for using the difference in arrival time of the received signal between the first antenna and the second antenna. In another embodiment, a communications device having multiple antennas is provided that compensates for the NLOS signal path using the method.
-
-
-
-
-
-
-
-
-
Search Results
43
records
(took 0.016 seconds)
