公开(公告)号：US12015966B2

公开(公告)日：2024-06-18

申请号：US17760540

申请日：2019-09-25

Applicant: Nokia Solutions and Networks Oy

Inventor： Fei Gao ,  Chaojun Xu ,  Gang Shen

IPC: H04W4/029 ,  G01S5/02 ,  G01S5/04 ,  H04W4/33

CPC classification number: H04W4/029 ,  G01S5/0205 ,  G01S5/04 ,  G01S2205/02 ,  H04W4/33

Abstract: Methods and apparatus for sensor selection for localization and tracking are provided. A method (300) performed at an access point (101, 101a, 101b, 101c, 901, 902, 903) comprises: determining, a detectability of the access point (101, 101a, 101b, 101c, 901, 902, 903) for localization for a target device (102), based on channel state information of a radio link between the target device (102) and the access point (101, 101a, 101b, 101c, 901, 902, 903) (302); and determining whether the access point (101, 101a, 101b, 101c, 901, 902, 903) is to be used for position estimation of the target device (102) or not based on the detectability (304). A localization server (103) may further eliminate access points (101, 101a, 101b, 101c, 901, 902, 903) at poor positions from position estimation, by using a predefined weighted-kernel approach.

公开(公告)号：US11923622B2

公开(公告)日：2024-03-05

申请号：US17264349

申请日：2018-08-02

Applicant: Nokia Solutions and Networks Oy

Inventor： Fei Gao ,  Chaojun Xu ,  Gang Shen

IPC: H01Q1/38 ,  H01Q5/385 ,  H01Q7/00

CPC classification number: H01Q7/00 ,  H01Q1/38 ,  H01Q5/385

Abstract: In accordance with some embodiments, there is provided an apparatus. The apparatus includes a conductive loop; a first conductive member electromagnetically coupled to the conductive loop and galvanically coupled to a radio frequency circuit; a second conductive member arranged across and electromagnetically coupled to the conductive loop; and a third conductive member arranged across and electromagnetically coupled to the conductive loop, the third conductive member being spaced apart from the second conductive member and electromagnetically coupled to the first conductive member.