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US 12,181,564 B1Granted
Dual round trip time mitigation for wireless local area network devices
AssigneeSR Technologies, Inc.
InventorsMark Passler, Kyle Patrick Kelly
Life of this patent
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AssigneeSR Technologies, Inc.
InventorsMark Passler, Kyle Patrick Kelly
Estimating the term…
A method and devices are disclosed for geo-location of wireless local area network (WLAN) devices. According to one aspect, a method for determining a corrected round trip times (RTT) resulting from communication with a WD is provided. The WD is configured with one or two short interframe spacings (SIFS). The method includes performing RTT measurements at successive times. The method includes determining a presence of one or two modes based at least in part on peaks of a kernel density estimation (KDE) surface. The KDE surface is determined from the RTT measurements. When there is only one mode, a corrected RTT is determined based on the RTT measurements and a first SIFS. When there are two modes, a corrected RTT is determined based on the RTT measurements and the first SIFS plus an SIFS offset (Δ), Δ being based at least in part on a difference between the two modes.
A method in a first wireless device (WD) for determining a corrected round trip times (RTT) resulting from communication with a second WD, the second WD being configured with one or two short interframe spacings (SIFS), the method comprising:
A first wireless device (WD) configured to determine a corrected round trip time (RTT) resulting from communication with a second WD, the second WD being configured with one or two short interframe spacings (SIFS), the first WD being configured to:
Dependencies are inferred from the claim text.