US 12,177,747 B2
Technique for assessing positioning qualities
Péter Hága, Budapest (HU); Zsófia Kallus, Budapest (HU); Tamas Borsos, Budapest (HU); and Peter Vaderna, Budapest (HU)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/631,050
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jul. 30, 2019, PCT No. PCT/EP2019/070502
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/018386, PCT Pub. Date Feb. 4, 2021.
Prior Publication US 2022/0272504 A1, Aug. 25, 2022
Int. Cl. H04W 4/33 (2018.01); G01S 5/02 (2010.01); G01S 5/14 (2006.01); H04W 4/029 (2018.01)
CPC H04W 4/33 (2018.02) [G01S 5/0244 (2020.05); G01S 5/14 (2013.01); H04W 4/029 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method for assessing positioning qualities within a localization area of a positioning system comprising a plurality of anchor nodes for determining positions of tag devices within the localization area using radio technology, the method comprising:
determining a positioning deviation between an absolute position of a tag device and a relative position of the tag device, the absolute position of the tag device being determined by the positioning system using the plurality of anchor nodes and the relative position of the tag device being determined based on movement-related measurements performed by the tag device relative to a previously determined absolute position of the tag device; and
assessing a positioning quality for the absolute position based on the determined positioning deviation;
wherein the absolute position of the tag device is determined by the positioning system, using radio technology, independently from any previously determined position of the tag device;
wherein the tag device comprises at least one movement-related sensor configured to perform the movement-related measurements, wherein the at least one movement-related sensor comprises one or more of an accelerometer, a pedometer, an Inertial Measurement Unit (IMU), a gyroscope, a 6 Degree of Freedom (6DOF), a 9DOF sensor, a pressure sensor for measuring altitude changes, or a visual sensor; and
wherein the relative position of the tag device is determined relative to the previously determined absolute position of the tag device by integrating steps of movement of the tag device from the previously determined absolute position of the tag device, wherein the steps of movement of the tag device are reported by the at least one movement-related sensor.