US 12,088,519 B2
Base station measurement associated with a round-trip time measurement procedure between a user equipment and a different base station
Weimin Duan, San Diego, CA (US); Alexandros Manolakos, Escondido, CA (US); and Seyong Park, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 18, 2021, as Appl. No. 17/405,862.
Claims priority of provisional application 63/075,549, filed on Sep. 8, 2020.
Prior Publication US 2022/0077981 A1, Mar. 10, 2022
Int. Cl. H04L 5/00 (2006.01); G01S 5/10 (2006.01); H04W 4/029 (2018.01)
CPC H04L 5/0048 (2013.01) [G01S 5/10 (2013.01); H04W 4/029 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method of operating a first base station, comprising:
obtaining a configuration from a Location Management Function (LMF) component, the configuration is associated with a sounding reference signal for positioning (SRS-P) associated with a round-trip time (RTT) measurement procedure between a user equipment (UE) and a second base station, the SRS-P is configured with a first frequency domain comb structure;
obtaining a configuration from a Location Management Function (LMF) component, the configuration is associated with a positioning reference signal (PRS) associated with the RTT measurement procedure, the PRS is configured with a second frequency domain comb structure and with a beam from the second base station;
measuring the sounding reference signal for positioning (SRS-P) associated with the round-trip time (RTT) measurement procedure between the user equipment (UE) and the second base station;
measuring the positioning reference signal (PRS) associated with the RTT measurement procedure the second base station;
determining a difference between a first time of arrival (ToA) of the SRS-P at the first base station and a second ToA of the PRS at the first base station; and
reporting measurement information including the difference,
wherein:
the PRS follows the SRS-P or the SRS-P follows the PRS,
based on the PRS following the SRS-P, the PRS is received by the first base station after the first base station receiving the SRS-P, and based on the SRS-P following the PRS, the SRS-P is received by the first base station after the first base station receiving the PRS from the second base station.