US 12,307,902 B2
Cluster-based approach to positioning of vehicles in vehicle platooning or autonomous trucking
Chang-Sik Choi, Seoul (KR); Kapil Gulati, Belle Mead, NJ (US); and Sudhir Kumar Baghel, Hillsborough, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 16, 2021, as Appl. No. 17/232,907.
Claims priority of provisional application 63/013,331, filed on Apr. 21, 2020.
Prior Publication US 2021/0327280 A1, Oct. 21, 2021
Int. Cl. G08G 1/00 (2006.01); H04W 4/48 (2018.01); H04W 64/00 (2009.01)
CPC G08G 1/22 (2013.01) [H04W 4/48 (2018.02); H04W 64/003 (2013.01); H04W 64/006 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method performed by a first mobile device that is in a first cluster of mobile devices for ranging between clusters of mobile devices, wherein the first mobile device is a first representative mobile device in the first cluster of mobile devices, and wherein a cluster of mobile devices comprises at least two mobile devices, the method comprising:
receiving a ranging signal broadcast by a second mobile device that is in a second cluster of mobile devices, wherein the second mobile device is a second representative mobile device in the second cluster of mobile devices and no other mobile device in the second cluster of mobile devices broadcasts a ranging signal;
determining a distance between the first cluster of mobile devices and the second cluster of mobile devices based on the ranging signal received from the second representative mobile device in the second cluster of mobile devices;
determining if the distance between the first cluster of mobile devices and the second cluster of mobile devices is greater than a predetermined threshold;
broadcasting a ranging signal, wherein no other mobile device in the first cluster of mobile devices broadcasts a ranging signal when the distance between the first cluster of mobile devices and the second cluster of mobile devices is greater than the predetermined threshold; and
transmitting a signal to other mobile devices in the first cluster of mobile devices to begin broadcasting ranging signals in association with the ranging signal broadcast by the second mobile device and when the distance between the first cluster of mobile devices and the second cluster of mobile devices is less than the predetermined threshold.