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公开(公告)号：US20230133494A1
公开(公告)日：2023-05-04
申请号：US18047810
申请日：2022-10-19
Applicant: NXP B.V.
Inventor： Manuel Lafer , Wolfgang Küchler
Abstract: A transceiver configured to: determine a reference frequency offset relative to a second transceiver based on double sided ranging; correct first and second portions of a packet received from a respective first and second antenna; and determine an angle of arrival of the packet based on corrected first and second portions and the reference frequency offset.
[FIG. 10]-
公开(公告)号：US10298337B2
公开(公告)日：2019-05-21
申请号：US15697073
申请日：2017-09-06
Applicant: NXP B.V.
Inventor： Wolfgang Küchler , Thomas Baier , Manuel Lafer
Abstract: A processing module for a receiver device. The processor module comprises a channel estimate generation component arranged to output channel estimate information for a received signal, and a timestamping module arranged to determine a ToA measurement for a marker within a packet of the received signal based at least partly on the channel estimate information for the received signal generated by the channel estimate generation component. The channel estimate generation component comprises a validation component arranged to derive a validation pattern for the packet within the received signal for which a ToA measurement is to be determined, identify a section of the packet containing a validation sequence, and perform cross-correlation between at least a part of the validation sequence within the packet and at least a part of the validation pattern to generate channel estimate validation information.
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公开(公告)号：US12047113B2
公开(公告)日：2024-07-23
申请号：US18154976
申请日：2023-01-16
Applicant: NXP B.V.
Inventor： Stefan Tertinek , Manuel Lafer , Wolfgang Küchler
IPC: H04B1/71 , H04B1/7163 , H04B7/08 , H04L25/02
CPC classification number: H04B1/71637 , H04B7/0805 , H04L25/0212
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: at least two antennas; an ultra-wideband (UWB) communication unit configured to receive UWB frames through said antennas; a controller configured to switch between said antennas such that consecutive UWB frames are received through different ones of said antennas; wherein the controller is further configured to compute channel impulse responses (CIRs) wherein each of said CIRs is based on a different one of said UWB frames. 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 computer program is provided for carrying out said method.
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公开(公告)号：US11817972B2
公开(公告)日：2023-11-14
申请号：US17504690
申请日：2021-10-19
Applicant: NXP B.V.
Inventor： Manuel Lafer , Wolfgang Küchler
CPC classification number: H04L25/0204 , H04B1/1027 , H04L25/022 , H04L25/0212
Abstract: A receiver comprising: a processing module configured to: receive a first portion of a packet of received signalling from a first antenna; receive a carrier estimate signal; adjust the first portion based on the carrier estimate signal and correlate the signal with an expected code sequence to provide a first correlated signal; a tracking module configured to: receive the first correlated signal and update the carrier estimate signal, wherein the processing module is further configured to: receive a second portion of the packet from a second antenna; adjust the second portion based on the carrier estimate signal and correlate the signal to provide a second correlated signal, and wherein the receive path further comprises a phase calculation module configured to: receive the first and second correlated signals and determine a respective first and second carrier phase and an angle of arrival of the received signalling.
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5.发明公开公开(公告)号：US20230268954A1
公开(公告)日：2023-08-24
申请号：US18166217
申请日：2023-02-08
Applicant: NXP B.V.
Inventor： Stefan Tertinek , Wolfgang Küchler , Manuel Lafer
Abstract: In accordance with an aspect of the present disclosure, a communication system is provided, comprising: a first ultra-wideband (UWB) transmitter configured to be coupled to a first antenna; a second UWB transmitter configured to be coupled to a second antenna; a controller configured to cause the first UWB transmitter to transmit a first packet to an external communication device, wherein the first packet contains a predefined code; wherein the controller is further configured to cause the second UWB transmitter to transmit a second packet to the external communication device, wherein the second packet contains a cyclically shifted version of said predefined code. In accordance with another aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) receiver configured to be coupled to an antenna, wherein the UWB receiver is further configured to receive at least a first packet and a second packet from an external communication system, wherein the first packet contains a predefined code and the second packet contains a cyclically shifted version of said predefined code; a processing unit configured to correlate the first packet and the second packet received by the UWB receiver with the predefined code. In accordance with further aspects, corresponding methods of operation are conceived, as well as computer programs for carrying out said methods.
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Patent Agency Ranking
公开(公告)号：US12287394B2
公开(公告)日：2025-04-29
申请号：US18082393
申请日：2022-12-15
Applicant: NXP B.V.
Inventor： Michael Schober , Manuel Lafer , Pablo Corbalán Pelegrín
IPC: G01S13/76 , B60R25/24 , H04L43/0864 , H04L43/106 , B60R25/04
Abstract: Aspects of the present disclosure are directed to communicating data for authentication and location determination, such as for authenticating a key FOB and locating the key FOB within a defined distance. As may be implemented in accordance with one or more embodiments, a plurality of headerless packets, respectively including scrambled timestamp sequence (STS) packets but not including encoding and/or synchronization headers, are communicated between respective communication circuits. A time of flight (TOF) value indicative of time elapsed between transmission and reception of the plurality of headerless packets is assessed based on the STS packets. A distance between the communication circuits is determined based on the assessed time of flight.
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公开(公告)号：US20240201361A1
公开(公告)日：2024-06-20
申请号：US18082393
申请日：2022-12-15
Applicant: NXP B.V.
Inventor： Michael Schober , Manuel Lafer , Pablo Corbalán Pelegrín
IPC: G01S13/76 , B60R25/24 , H04L43/0864 , H04L43/106
CPC classification number: G01S13/765 , B60R25/24 , H04L43/0864 , H04L43/106 , B60R25/04
Abstract: Aspects of the present disclosure are directed to communicating data for authentication and location determination, such as for authenticating a key FOB and locating the key FOB within a defined distance. As may be implemented in accordance with one or more embodiments, a plurality of headerless packets, respectively including scrambled timestamp sequence (STS) packets but not including encoding and/or synchronization headers, are communicated between respective communication circuits. A time of flight (TOF) value indicative of time elapsed between transmission and reception of the plurality of headerless packets is assessed based on the STS packets. A distance between the communication circuits is determined based on the assessed time of flight.
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公开(公告)号：US20220166649A1
公开(公告)日：2022-05-26
申请号：US17504690
申请日：2021-10-19
Applicant: NXP B.V.
Inventor： Manuel Lafer , Wolfgang Küchler
Abstract: A receiver comprising: a processing module configured to: receive a first portion of a packet of received signalling from a first antenna; receive a carrier estimate signal; adjust the first portion based on the carrier estimate signal and correlate the signal with an expected code sequence to provide a first correlated signal; a tracking module configured to: receive the first correlated signal and update the carrier estimate signal, wherein the processing module is further configured to: receive a second portion of the packet from a second antenna; adjust the second portion based on the carrier estimate signal and correlate the signal to provide a second correlated signal, and wherein the receive path further comprises a phase calculation module configured to: receive the first and second correlated signals and determine a respective first and second carrier phase and an angle of arrival of the received signalling.
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公开(公告)号：US12289186B2
公开(公告)日：2025-04-29
申请号：US18047810
申请日：2022-10-19
Applicant: NXP B.V.
Inventor： Manuel Lafer , Wolfgang Küchler
Abstract: A transceiver configured to: determine a reference frequency offset relative to a second transceiver based on double sided ranging; correct first and second portions of a packet received from a respective first and second antenna; and determine an angle of arrival of the packet based on corrected first and second portions and the reference frequency offset.
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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.
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