US 12,137,010 B2
Network node identification using wireless signal signatures
Klaas Brink, Waalre (NL); Vincent Pierre Martinez, Venerque (FR); and Cornelis Marinus Moerman, Waalre (NL)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on May 3, 2022, as Appl. No. 17/661,762.
Claims priority of application No. 21305641 (EP), filed on May 17, 2021.
Prior Publication US 2022/0368567 A1, Nov. 17, 2022
Int. Cl. H04L 9/00 (2022.01); H04L 9/40 (2022.01); H04L 25/02 (2006.01)
CPC H04L 25/0212 (2013.01) [H04L 63/1425 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A battery pack, comprising:
an enclosure;
a plurality of network nodes inside the enclosure, each network node having at least one battery cell and a battery cell controller that generates a unique radio frequency (RF) signature; and
a special-purpose computer processor that compares an incoming channel impulse response (CIR) of the unique radio frequency (RF) signal signature corresponding to an incoming packet exchanged between a battery cell controller and a battery management unit inside the enclosure to a plurality of stored valid RF CIR signatures and executes a resemblance metric to accept or reject the incoming packet.