US 12,015,966 B2
Method and apparatus for sensor selection for localization and tracking
Fei Gao, Shanghai (CN); Chaojun Xu, Shanghai (CN); and Gang Shen, Shanghai (CN)
Assigned to Nokia Solutions and Networks Oy, Espoo (FI)
Appl. No. 17/760,540
Filed by Nokia Solutions and Networks Oy, Espoo (FI)
PCT Filed Sep. 25, 2019, PCT No. PCT/CN2019/107767
§ 371(c)(1), (2) Date Mar. 15, 2022,
PCT Pub. No. WO2021/056246, PCT Pub. Date Apr. 1, 2021.
Prior Publication US 2022/0360944 A1, Nov. 10, 2022
Int. Cl. H04W 4/029 (2018.01); G01S 5/02 (2010.01); G01S 5/04 (2006.01); H04W 4/33 (2018.01)
CPC H04W 4/029 (2018.02) [G01S 5/0205 (2013.01); G01S 5/04 (2013.01); G01S 2205/02 (2020.05); H04W 4/33 (2018.02)] 15 Claims
OG exemplary drawing
 
1. A method performed at a localization server, comprising:
determining weights of at least two access points, wherein a weight of an access point is associated with a detectability of the access point for localization of a target device;
constructing respective weighted kernel functions for each of the at least two access points;
computing for each of the at least two access points, an inner product of the weight of the respective access point with a weighted kernel function constructed for the respective access point;
constructing an estimation error function by using inner product for the at least two access points;
determining weight parameters of the respective weighted kernel functions, to optimize the estimation error function with a constrain condition of L1 regularization; and
selecting one or more access points to be used for position estimation of the target device from the at least two access points, according to the determined weight parameters.