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11.发明申请公开(公告)号：US20210377741A1
公开(公告)日：2021-12-02
申请号：US17302275
申请日：2021-04-29
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Srivathsa Masthi Parthasarathi
IPC: H04W12/64 , H04W12/041 , H04W12/069 , H04W60/04
Abstract: There is described a system and method of committing a transaction within a UWB network comprising a plurality of anchors, the UWB network covering a predetermined area having at least one trigger area, the method comprising waking up a mobile device upon entering the predetermined area, receiving initial network data at the mobile device, verifying that the UWB network is genuine based on the initial network data, initiating communication between the mobile device and an anchor, including partial mutual authentication, generating a session key for secure communication between the mobile device and the UWB network, tracking the location of the mobile device within the predetermined area based on secure communication between the mobile device and one or more anchors within the UWB network using the session key, and committing the transaction, if the location of the mobile device is within the at least one trigger area.
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公开(公告)号：US10903868B2
公开(公告)日：2021-01-26
申请号：US16718061
申请日：2019-12-17
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Diwakar Subraveti , Srivathsa Masthi Parthasarathi
IPC: H04B1/3822 , H04W4/02 , H04W4/021 , G01S13/74 , G07C9/00
Abstract: Disclosed is a RF system (100) having at least one transceiver node device (110, 112, 114, 116, 118, 120) that is capable to assume, at a controllable point in time and/or for a controllable time period, each one of the following roles (210, 220, 230, 240): a first role (210) comprising listening or answering to a message from an active communication session, in particular ranging sessions, a second role (220) comprising listening for new communication sessions, in particular ranging sessions, a third role (230) comprising staying idle, and optionally a third role (230) comprising scanning for ongoing communication sessions, in particular ranging sessions, of other RF systems. The RF system (100) further comprises a controller device (134) communicatively interlinked with the at least one, in particular each, transceiver node device (110, 112, 114, 116, 118, 120) and capable to control an assignment of roles to the at least one, in particular each, transceiver node device, in particular to control for a transceiver node device a point in time to assume a role and/or a duration of performing a role and/or a duty cycle of performing a role (210, 220, 230, 240).
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公开(公告)号：US12137339B2
公开(公告)日：2024-11-05
申请号：US17649247
申请日：2022-01-28
Applicant: NXP B.V.
Inventor： Srivathsa Masthi Parthasarathi , Stefan Lemsitzer
IPC: H04L29/06 , H04L9/08 , H04L9/40 , H04W12/037 , H04W12/0431
Abstract: Disclosed is a UWB communication node comprising: a UWB communication unit configured to transmit one or more messages, to a plurality of external responder nodes and comprising a ranging control message defining a contention period, and further configured to receive one or more responses from said responder nodes during said contention period, each response including a response payload; a processor unit configured to use a common cryptographic session key to encrypt said messages; wherein the processing unit is further configured to use responder-specific session keys to decrypt the response payloads; wherein each individual one of said responder-specific cryptographic session keys is a unique key shared between the node and one of the external responder nodes. Corresponding systems methods and an associated computer program are also disclosed.
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公开(公告)号：US20240154643A1
公开(公告)日：2024-05-09
申请号：US18485417
申请日：2023-10-12
Applicant: NXP B.V.
Inventor： Christian Eisendle , Srivathsa Masthi Parthasarathi , Michael Stark
IPC: H04B1/7183
CPC classification number: H04B1/7183
Abstract: A method is provided for managing ultra-wideband (UWB) sessions. In the method a first UWB communication session is performed. A process of the first UWB communication session is synchronized with a time base of a first UWB communication device. At least another UWB communication session is performed. A process of the at least another UWB communication session is synchronized to the first UWB communication session.
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Patent Agency Ranking
15.发明授权公开(公告)号：US11812274B2
公开(公告)日：2023-11-07
申请号：US17302275
申请日：2021-04-29
Applicant: NXP B.V.
Inventor： Hugues Jean Marie de Perthuis , Frank Leong , Sören Heisrath , Srivathsa Masthi Parthasarathi
IPC: H04W60/04 , H04W12/64 , H04W12/069 , H04W12/041
CPC classification number: H04W12/64 , H04W12/041 , H04W12/069 , H04W60/04
Abstract: There is described a system and method of committing a transaction within a UWB network comprising a plurality of anchors, the UWB network covering a predetermined area having at least one trigger area, the method comprising waking up a mobile device upon entering the predetermined area, receiving initial network data at the mobile device, verifying that the UWB network is genuine based on the initial network data, initiating communication between the mobile device and an anchor, including partial mutual authentication, generating a session key for secure communication between the mobile device and the UWB network, tracking the location of the mobile device within the predetermined area based on secure communication between the mobile device and one or more anchors within the UWB network using the session key, and committing the transaction, if the location of the mobile device is within the at least one trigger area.
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公开(公告)号：US11695447B2
公开(公告)日：2023-07-04
申请号：US17303625
申请日：2021-06-03
Applicant: NXP B.V.
Inventor： Srivathsa Masthi Parthasarathi , Brian Charles Cassidy , Atmaram Kota Rajaram , Ghiath Al-kadi , Hendrik Ahlendorf
IPC: H04B1/7163 , H04B7/06 , H04W84/12
CPC classification number: H04B1/7163 , H04B7/0602 , H04W84/12
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) communication unit configured to set up a UWB communication channel with a first external communication device; a further communication unit configured to set up a further communication channel with a second external communication device; an antenna configured to be selectively used by the UWB communication unit and the further communication unit; wherein the UWB communication unit is operatively coupled to the further communication unit, and wherein the further communication unit is configured to grant the UWB communication unit access to said antenna in response to receiving a request from the UWB communication unit. This aspect represents a solution to the problem of how to facilitate avoiding that UWB ranging rounds fail in a co-existence system.
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公开(公告)号：US20230065013A1
公开(公告)日：2023-03-02
申请号：US17817419
申请日：2022-08-04
Applicant: NXP B.V.
Inventor： Boyoung Kim , Michael Schober , Robert Spreitzer , Nidhin Vadakkan , Srivathsa Masthi Parthasarathi
Abstract: In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) communication unit configured to enable UWB communication with at least one external communication device; a processing unit configured to perform a ranging session between the communication device and the external communication device, wherein said ranging session comprises one or more distance measurements based on messages exchanged between the communication device and the external communication device, wherein said messages are exchanged through the UWB communication unit; a prioritization unit configured to prioritize said ranging session using a synchronization indicator associated with said ranging session. 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：US20220385519A1
公开(公告)日：2022-12-01
申请号：US17661072
申请日：2022-04-28
Applicant: NXP B.V.
Inventor： Pablo Corbalán Pelegrín , Michael Schober , Srivathsa Masthi Parthasarathi , Stefan Lemsitzer
Abstract: A method of estimating a clock frequency offset in a mobile device relative to a clock frequency of a controller within a UWB network comprises (a) determining, for each of a plurality of anchors, an anchor clock frequency offset relative to the controller clock frequency, (b) broadcasting an anchor data packet from each anchor, the anchor data packet including the respective anchor clock frequency offset, (c) receiving at least one anchor data packet at the mobile device, (d) estimating a mobile device clock frequency offset relative to the anchor clock frequency of the anchor from which the at least one anchor data packet was received, and (e) estimating the clock frequency offset in the mobile device based on the estimated mobile device clock frequency offset and the anchor clock frequency offset included in the at least one received anchor data packet. Furthermore, a TDoA-based localization method and a TDoA-based localization system are described.
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公开(公告)号：US20220207940A1
公开(公告)日：2022-06-30
申请号：US17538371
申请日：2021-11-30
Applicant: NXP B.V.
Abstract: A proximity detection and authentication method and system are disclosed. The method includes one or more turnstiles using a non-secure ranging process to detect a proximity of one or more mobile computing devices carried by respective users. The method also includes one of the turnstiles, on making a proximity determination in respect of a first of said mobile computing devices, commencing a secure authentication process to authenticate a user carrying the first mobile computing device. The method further includes, in response to a determination that the user carrying the first mobile computing device has been authenticated, allowing the user carrying the first mobile computing device to pass through the turnstile.
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