US 11,902,857 B2
Handling concept drift in Wi-Fi-based localization
Qianyu Liu, Montreal (CA); Negar Ghourchian, Montreal (CA); Michel Allegue Martinez, Terrebonne (CA); and Raihan Seraj, Montreal (CA)
Assigned to Aerial Technologies Inc., Montreal (CA)
Filed by Aerial Technologies Inc., Montreal (CA)
Filed on Jul. 23, 2021, as Appl. No. 17/383,654.
Application 17/383,654 is a continuation of application No. PCT/IB2020/051503, filed on Feb. 22, 2020.
Claims priority of provisional application 62/809,388, filed on Feb. 22, 2019.
Claims priority of provisional application 62/809,011, filed on Feb. 22, 2019.
Prior Publication US 2021/0352441 A1, Nov. 11, 2021
Int. Cl. H04B 17/318 (2015.01); H04W 4/029 (2018.01); H04W 84/12 (2009.01)
CPC H04W 4/029 (2018.02) [H04B 17/318 (2015.01); H04W 84/12 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for handling drift in wireless signals, the method comprising:
collecting channel state information through a transmitter and a receiver of a wireless access point;
preparing one or more data frames based on the channel state information, wherein preparing the data frames includes noise removal and normalization;
obtaining one or more statistical properties that are representative for a predefined area of interest; and
leveraging the one or more statistical properties to eliminate outliers from the prepared data frames.