US 11,812,274 B2
Methods and systems for committing transactions utilizing RF ranging while protecting user privacy
Hugues Jean Marie de Perthuis, Garcelles (FR); Frank Leong, Veldhoven (NL); Sören Heisrath, Kaltenkirchen (DE); and Srivathsa Masthi Parthasarathi, Bangalore (IN)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Apr. 29, 2021, as Appl. No. 17/302,275.
Claims priority of application No. 20290048 (EP), filed on May 28, 2020.
Prior Publication US 2021/0377741 A1, Dec. 2, 2021
Int. Cl. H04W 60/04 (2009.01); H04W 12/64 (2021.01); H04W 12/069 (2021.01); H04W 12/041 (2021.01)
CPC H04W 12/64 (2021.01) [H04W 12/041 (2021.01); H04W 12/069 (2021.01); H04W 60/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of committing a transaction with a mobile device within a ultra-wideband (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 the 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 within the UWB network, including partial mutual authentication,
generating a session key for secure communication between the mobile device and the plurality of anchors in the UWB network,
tracking, by the UWB network, a 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.