US 12,407,376 B2
Multipath channel based radio frequency based sensing
Peter Deixler, Arlington, MA (US); Hugo José Krajnc, Eindhoven (NL); and Jaco Van Der Merwe, Kelpen-Oler (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 18/558,404
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Apr. 25, 2022, PCT No. PCT/EP2022/060802
§ 371(c)(1), (2) Date Nov. 1, 2023,
PCT Pub. No. WO2022/233614, PCT Pub. Date Nov. 10, 2022.
Claims priority of provisional application 63/183,186, filed on May 3, 2021.
Claims priority of application No. 21174027 (EP), filed on May 17, 2021.
Prior Publication US 2024/0235621 A1, Jul. 11, 2024
Int. Cl. H04B 7/04 (2017.01); H04B 7/0413 (2017.01)
CPC H04B 7/04013 (2023.05) [H04B 7/0413 (2013.01)] 12 Claims
OG exemplary drawing
 
10. A method for operating a radio frequency system for performing radio frequency based sensing in a sensing area, the method comprising the steps:
arranging a first node configured for transmitting a radio frequency signal,
arranging a radio frequency signal diffuser configured for reflecting the radio frequency signal in multiple directions in order to generate additional paths for a multipath channel based on the radio frequency signal with a distance to the first node and configuring the radio frequency signal diffuser and the first node such that at least one of the additional paths of the multipath channel has sufficient transmission power for performing radio frequency based sensing in the sensing area, and
performing radio frequency based sensing by the radio frequency system based on at least two paths of the multipath channel including at least the one of the additional paths; wherein the radio frequency system includes a second node configured for performing radio frequency based sensing and wherein the second node includes the radio frequency signal diffuser, and wherein each of the nodes includes a radio frequency signal diffuser configured for reflecting the radio frequency signal in multiple directions in order to generate further additional paths for the multipath channel based on the radio frequency signal.