US 12,232,095 B2
Ultra-wideband radio system with detect-and-avoid capability
Robert Hanczor, San Diego, CA (US); Duane Maxwell, San Diego, CA (US); and Sai Kwok, San Diego, CA (US)
Filed by Piper Networks, Inc., San Diego, CA (US)
Filed on May 10, 2021, as Appl. No. 17/316,360.
Claims priority of provisional application 63/022,150, filed on May 8, 2020.
Prior Publication US 2021/0410141 A1, Dec. 30, 2021
Int. Cl. H01Q 5/25 (2015.01); H01Q 1/28 (2006.01); H04W 72/0453 (2023.01)
CPC H04W 72/0453 (2013.01) [H01Q 1/28 (2013.01); H01Q 5/25 (2015.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus comprising:
an ultra-wideband (UWB) radio configured to transmit a UWB radio signal in a UWB frequency band;
a detect circuit configured to:
monitor the UWB frequency band for a presence of a radio altimeter signal in the UWB frequency band, and
responsive to detecting the presence of a radio altimeter signal in the UWB frequency band, generate one or more parameters based on the radio altimeter signal and transmit the one or more parameters; and
a controller configured to:
receive the one or more parameters,
responsive to receiving the one or more parameters, calculate a distance to a source of the radio altimeter signal based on the one or more parameters, and determine whether the calculated distance is less than a distance threshold,
responsive to determining the calculated distance is less than the distance threshold, cause the UWB radio not to transmit the UWB signal; and
responsive to not detecting the radio altimeter signal in the UWB frequency band, cause the UWB radio to transmit the UWB signal.