US 11,844,041 B2
Method and apparatus for fingerprinting positioning
Kunpeng Qi, Shanghai (CN); Di Shu, Shanghai (CN); Thomas Johansson, Åby (SE); and Åke Busin, Sollentuna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/056,101
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Nov. 12, 2018, PCT No. PCT/CN2018/115009
§ 371(c)(1), (2) Date Nov. 17, 2020,
PCT Pub. No. WO2020/097752, PCT Pub. Date May 22, 2020.
Prior Publication US 2021/0212012 A1, Jul. 8, 2021
Int. Cl. H04W 64/00 (2009.01); H04W 24/10 (2009.01)
CPC H04W 64/00 (2013.01) [H04W 24/10 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method implemented at a location server, the method comprising:
deciding inter-frequency measurement information for positioning a user equipment, UE, the inter-frequency measurement information comprising:
at least one frequency in a cell that is different from a serving cell of the UE, for inter-frequency measurements; and
one or both of a first indication indicating that the inter-frequency measurements should be collected based on a non-positioning event corresponding to a mobility/traffic management and a second indication indicating that compulsory periodically triggered inter-frequency measurements should be collected based on a positioning request for positioning the UE;
sending a first measurement request containing the inter-frequency measurement information to an access node of the serving cell;
receiving a first measurement result from the access node, the first measurement result comprising inter-frequency measurements for a plurality or all of the at least one frequency in the cell that is different from of the serving cell of the UE, the measurements being marked with the cell that is different from the serving cell of the UE and a third indication indicating whether the measurements are collected based on the non-positioning event or whether the measurements are collected based on the positioning request; and
determining a position of the UE based on the first measurement result, determining the position of the UE based on the first measurement result comprising:
calculating similarities between measurements in the first measurement result and corresponding signatures recorded in a location database; and
determining the position of the UE based on the calculated similarities.