Nxp B.v.

Pablo Corbalán Pelegrín

Michael Schober

Srivathsa Masthi Parthasarathi

Manuel Lafer

David Veit

Yuvaraj Pargunam

An ultra-wideband (UWB) system of a UWB-enabled device dynamically schedules UWB ranging sessions with multiple asynchronous access control devices. The UWB system creates one ranging session for each access control device and schedules each ranging session with equal priority. During each ranging session, the UWB system receives a ranging message from a corresponding access control device, with the ranging message including a ranging management list (RML) that includes identifiers associated with UWB systems that are within an access control range of the corresponding access control device. The UWB system updates the priority of each ranging session based on presence or absence of the corresponding identifier in the RML of the received ranging message. Further, the UWB system schedules the ranging sessions with the updated priority to dynamically prioritize one access control device, thereby enabling an operation between the UWB system and the corresponding access control device.

System and method for dynamic management of ultra-wideband ranging sessions

There is described a ultra-wide band (UWB) communication device, comprising: Further, a UWB communication system and a method of determining a distance are described.

Ultra-wide band distance determination with an angle-of-arrival based disturbance compensation

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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Callosa de Segura, Spain

Pablo Corbalán Pelegrín