US 11,852,739 B2
Positioning support information for time of arrival (TOA) estimation in possible multipath propagation conditions
Henrik Ryden, Stockholm (SE); Sara Modarres Razavi, Linköping (SE); Fredrik Gunnarsson, Linköping (SE); and Kai-Erik Sunell, Antibes (FR)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Nov. 1, 2021, as Appl. No. 17/515,688.
Application 17/515,688 is a continuation of application No. 15/752,091, granted, now 11,187,773, previously published as PCT/IB2017/056797, filed on Nov. 1, 2017.
Claims priority of provisional application 62/417,442, filed on Nov. 4, 2016.
Prior Publication US 2022/0050164 A1, Feb. 17, 2022
Int. Cl. G01S 5/02 (2010.01); H04W 4/029 (2018.01); G01S 5/00 (2006.01); G01S 5/10 (2006.01)
CPC G01S 5/0218 (2020.05) [G01S 5/0036 (2013.01); G01S 5/0236 (2013.01); G01S 5/10 (2013.01); H04W 4/029 (2018.02)] 12 Claims
OG exemplary drawing
 
1. A method executed in a target device for providing Observed Time Difference of Arrival (OTDOA) Reference Signal Time Difference (RSTD) measurements to a location server, the method comprising:
receiving a first signal from an RSTD reference cell and a second signal from a neighbor cell;
determining at least one valid peak value among noise peak values in the received first signal and the received second signal, the at least one valid peak value being determined from a search for valid peak values in response to at least one trigger from the location server;
determining OTDOA location measurements based at least in part on assistance data for OTDOA measurements received from the location server and the at least one valid peak value of the received first and second signals; and
sending the OTDOA location measurements using multipath RSTD to the location server.