US 12,245,256 B2
Optimization of ranging sessions initiated by vehicle and pedestrian UES
Chang-Sik Choi, Seoul (KR); Dan Vassilovski, Del Mar, CA (US); and Kapil Gulati, Belle Mead, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 7, 2022, as Appl. No. 18/053,358.
Application 18/053,358 is a division of application No. 17/179,548, filed on Feb. 19, 2021, granted, now 11,546,910.
Prior Publication US 2023/0077671 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/00 (2023.01); G01S 13/74 (2006.01); H04W 4/02 (2018.01); H04W 4/029 (2018.01); H04W 72/044 (2023.01); H04W 72/30 (2023.01); H04W 72/51 (2023.01)
CPC H04W 72/51 (2023.01) [G01S 13/74 (2013.01); H04W 4/023 (2013.01); H04W 4/029 (2018.02); H04W 72/044 (2013.01); H04W 72/30 (2023.01)] 19 Claims
OG exemplary drawing
 
1. A method of ranging between user equipments (UEs) performed by an initiator UE, the method comprising:
transmitting a first pre-ranging request message to a responder UE to initiate a first ranging session, the first pre-ranging request message comprising first ranging signal resources including a time and frequencies for the responder UE to broadcast a first ranging signal in the first ranging session;
receiving a first pre-ranging response message from the responder UE indicating a collision between the first ranging signal resources for the first ranging signal and second ranging signal resources for a second ranging signal for a second initiator UE;
determining an available time for the responder UE to broadcast the first ranging signal; and
transmitting a second pre-ranging request message to the responder UE to initiate the first ranging session, the second pre-ranging request message comprising third ranging signal resources including a time and frequencies for the responder UE to broadcast the first ranging signal in the first ranging session based on the available time.