US 12,381,642 B2
Setting and dynamically adjusting a hysteresis value used to control roaming of a wireless monitoring system
Matthew Richard Pekarske, Grafton, WI (US); and Tuomas Valtteri Laine, Vantaa (FI)
Assigned to GE PRECISION HEALTHCARE LLC, Wauwatosa, WI (US)
Filed by GE Precision Healthcare LLC, Wauwatosa, WI (US)
Filed on Dec. 28, 2021, as Appl. No. 17/646,258.
Prior Publication US 2023/0208538 A1, Jun. 29, 2023
Int. Cl. H04B 17/318 (2015.01); A61B 5/00 (2006.01); H04L 67/12 (2022.01); H04W 48/20 (2009.01); H04W 84/12 (2009.01)
CPC H04B 17/318 (2015.01) [A61B 5/0002 (2013.01); H04L 67/12 (2013.01); H04W 48/20 (2013.01); H04W 84/12 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for a wireless monitoring system, comprising:
roaming to an access point (AP) based on a received signal strength indicator (RSSI) of a candidate AP relative to a hysteresis threshold;
adjusting the hysteresis threshold responsive to a rate of change of an RSSI of a connected AP, the hysteresis threshold adjusted based on a direction of the rate of change of the RSSI of the connected AP and a velocity of the wireless monitoring system; and
determining a distance of the connected AP from the wireless monitoring system, wherein adjusting the hysteresis threshold responsive to the rate of change of the RSSI of the connected AP includes adjusting the hysteresis threshold based on a rate of change of the distance.