US 12,439,370 B2
Automated position estimation based on coordinating access points
Peiman Amini, Fremont, CA (US); Ardalan Alizadeh, San Jose, CA (US); and Bahador Amiri, Saratoga, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Dec. 19, 2022, as Appl. No. 18/068,378.
Prior Publication US 2024/0205873 A1, Jun. 20, 2024
Int. Cl. H04W 64/00 (2009.01); G01S 5/00 (2006.01); G01S 5/02 (2010.01)
CPC H04W 64/003 (2013.01) [G01S 5/0081 (2013.01); G01S 5/02213 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method of determining a location of an access point (AP), comprising:
receiving a first location measurement associated with a first measurement variant and a second location measurement associated with a second measurement variant from a first AP;
receiving a third location measurement associated with the first measurement variant and a fourth location measurement associated with the second measurement variant from a second AP;
determining a first weight associated with the first location measurement, a second weight associated with the second location measurement, a third weight associated with the third location measurement, and a fourth weight associated with the fourth location measurement;
determining a first location associated with the first AP and a second location associated with the second AP based on the first weight, the second weight, the third weight, and the fourth weight;
determining a confidence of the first location based on a comparison of the first location measurement and the second location measurement, wherein the determining the confidence further comprising:
determining a distance between the first AP and the second AP based on a satellite location measurement of the first AP and the second AP,
determining a horizontal dilution of the satellite location measurement of the first AP and the second AP, and
determining whether one of the first location measurement, the second location measurement, the third location measurement, or the fourth location measurement are outside a range associated with the distance and the horizontal dilution;
identifying a trigger to perform additional location measurements of the first AP and the second AP; and
performing the additional location measurements of the first AP and the second AP based on the trigger.