US 11,722,945 B2
Managing FTM frames of WLAN RTT bursts
Ranjeet Gupta, Bengaluru (IN); Mary Khun Hor-Lao, Chicago, IL (US); and Binesh Balasingh, Naperville, IL (US)
Assigned to Motorola Mobility LLC, Chicago, IL (US)
Filed by Motorola Mobility LLC, Chicago, IL (US)
Filed on Aug. 5, 2021, as Appl. No. 17/394,826.
Application 17/394,826 is a continuation of application No. 16/540,924, filed on Aug. 14, 2019, granted, now 11,115,894.
Prior Publication US 2021/0368412 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 40/00 (2009.01); H04W 40/02 (2009.01); H04W 40/14 (2009.01); H04L 43/0864 (2022.01)
CPC H04W 40/005 (2013.01) [H04L 43/0864 (2013.01); H04W 40/026 (2013.01); H04W 40/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
interposing a routing of a ranging request received as a wireless local area network (WLAN) round trip time (RTT) burst for fine timing measurement (FTM) in a device with a message request monitor of a status module;
overriding a device state of the device based on a skip request counter that increments for each dropped ranging request reaching a threshold;
routing to perform the ranging request of the WLAN RTT burst with multiple FTM frames in the ranging request rather than with a reduced number of the FTM frames in the ranging request; and
resetting the skip request counter to zero.
 
16. A method, comprising:
receiving a ranging request as a wireless local area network (WLAN) round trip time (RTT) burst for fine timing measurement (FTM) in a device;
determining whether the ranging request is necessary based on a device state of the device;
overriding the device state of the device based on a skip request counter that increments for each dropped ranging request reaching a threshold;
routing to perform the ranging request of the WLAN RTT burst with multiple FTM frames in the ranging request rather than with a reduced number of the FTM frames in the ranging request; and
resetting the skip request counter to zero.