US 10,893,447 B2
Systems and methods for improved Wi-Fi coexistence with radar
John C. Bahr, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC, Louisville, CO (US)
Filed on Jan. 18, 2019, as Appl. No. 16/252,156.
Claims priority of provisional application 62/618,788, filed on Jan. 18, 2018.
Prior Publication US 2019/0223067 A1, Jul. 18, 2019
Int. Cl. H04W 16/10 (2009.01); H04W 36/06 (2009.01); H04W 36/20 (2009.01); H04W 72/04 (2009.01); H04W 36/32 (2009.01); H04W 74/08 (2009.01); G01S 19/01 (2010.01); H04W 16/14 (2009.01)
CPC H04W 36/06 (2013.01) [H04W 36/20 (2013.01); H04W 36/32 (2013.01); H04W 72/0453 (2013.01); H04W 74/0825 (2013.01); G01S 19/01 (2013.01); H04W 16/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless transceiver, comprising:
an access point (AP) configured to wirelessly communicate with at least one Wi-Fi user equipment (UE) and monitor a target band for energy signatures of a radio frequency (RF) operation within the target band; and
a dynamic frequency selection (DFS) unit configured to (i) receive a detected energy signature from the target band, (ii) obtain a location of the AP, (iii) perform a matching search for a known RF operation corresponding to the detected energy signature within a vicinity of the location of the AP, (iv) determine from the matching search that the detected energy signature does not correspond to a known RF operation within the vicinity of the AP and represents a false positive, and (v) cause the AP to operate on a communication channel within the target band, based on the determination, without switching to a different channel.