	US 12,127,157 B2
	Methods, systems, and non-transitory mediums for augmented fine time measurement
Hongsheng Lu, San Jose, CA (US); Hansi Liu, New Brunswick, NJ (US); Rui Guo, San Jose, CA (US); and Takayuki Shimizu, Santa Clara, CA (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Jan. 4, 2022, as Appl. No. 17/568,078.
Prior Publication US 2023/0217408 A1, Jul. 6, 2023
Int. Cl. H04W 64/00 (2009.01); H04W 24/10 (2009.01); H04W 28/06 (2009.01); H04W 56/00 (2009.01)

CPC H04W 64/006 (2013.01) [H04W 24/10 (2013.01); H04W 28/06 (2013.01); H04W 56/009 (2013.01)]

19 Claims

1. A method comprising:

receiving a fine time measurement (FTM) message;

extracting channel state information (CSI) from the FTM message;

determining with a channel condition classifier a probability that the FTM message is multi-path based on the corresponding CSI; and

discarding the FTM message in response to the probability that the FTM message is multipath is above a threshold level of probability,

wherein the channel condition classifier includes a machine learning model for determining the probability that the FTM message is multi-path.