Network locationing RF planner

Patent metadata

Field	Value
Publication number	US-12248080-B2
Application number	US-201817276304-A
Country	US
Kind code	B2
Filing date	Sep 14, 2018
Priority date	Sep 14, 2018
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

Systems and methods for determining an indication of locationing accuracy are disclosed herein. In some embodiments, an antenna deployment including multiple antennas and corresponding locations for the antennas is obtained. Then, one or more radio characteristics are determined for ubiety locations based on the antenna deployment and an indication of locationing accuracy for the ubiety locations is determined based on the one or more radio characteristics. In this way, an antenna deployment can be evaluated for locationing accuracy. This may be used by a network engineer or an automated system to determine and/or refine an antenna deployment.

First claim

What is claimed is:

1. A method implemented in a computation node for determining an indication of locationing accuracy, comprising:
obtaining an antenna deployment comprising a plurality of antennas and corresponding locations for the plurality of antennas;
determining one or more radio characteristics for a plurality of relative locations within a venue, referred to as ubiety locations based on the antenna deployment, wherein one or more floorplans are used to calculate one or more of the one or more radio characteristics based thereon, wherein the one or more floorplans are used to determine one or more reflected propagation paths between the plurality of antennas and the plurality of ubiety locations;
segmenting one or more of the one or more floorplans into a grid of x, y coordinates, wherein the one or more of the one or more radio characteristics, comprising path gain, are calculated for each of the x, y coordinates; and
determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics.

2. The method of claim 1 wherein determining the one or more radio characteristics for the plurality of ubiety locations comprises determining a Signal-to-Noise Ratio, SNR, for the plurality of ubiety locations based on the antenna deployment.

3. The method of claim 1 wherein determining the indication of locationing accuracy for the plurality of ubiety locations comprises determining a timing error for the plurality of ubiety locations based on the one or more radio characteristics for the plurality of ubiety locations.

4. The method of claim 3 wherein determining the timing error for the plurality of ubiety locations comprises determining a Root Mean Square, RMS, timing error for the plurality of ubiety locations based on the one or more radio characteristics for the plurality of ubiety locations.

5. The method of claim 3 wherein determining the timing error for the plurality of ubiety locations comprises determining a mean timing error for the plurality of ubiety locations based on the one or more radio characteristics for the plurality of ubiety locations.

6. The method of claim 1 wherein determining the indication of locationing accuracy for the plurality of ubiety locations comprises determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using tables that relate the one or more radio characteristics to the indication of locationing accuracy.

7. The method of claim 1 wherein determining the indication of locationing accuracy for the plurality of ubiety locations comprises determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using mathematical models that relate the one or more radio characteristics to the indication of locationing accuracy.

8. The method of claim 7 wherein determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using mathematical models comprises determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using the mathematical models that relate the one or more radio characteristics to the indication of locationing accuracy that accounts for multipath propagation from the plurality of antennas to the plurality of ubiety locations.

9. The method of claim 7 wherein determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using the mathematical models comprises determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using the mathematical models that relate the one or more radio characteristics to the indication of locationing accuracy that accounts for how delay spread can affect Time of Flight, ToF, and/or Time Difference of Arrival, TDoA, estimate accuracy.

10. The method of claim 7 wherein determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using the mathematical models comprises determining the indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics using the mathematical models that relate the one or more radio characteristics to the indication of locationing accuracy by defining positioning accuracy as an intersection of multiple hyperbolic curves, each with varying degrees of accuracy.

11. The method of claim 1 further comprising generating a visual representation of the indication of locationing accuracy for the plurality of ubiety locations.

12. The method of claim 11 wherein generating the visual representation of the indication of locationing accuracy for the plurality of ubiety locations comprises generating a heatmap representing the indication of locationing accuracy for the plurality of ubiety locations.

13. The method of claim 11 wherein generating the visual representation of the indication of locationing accuracy for the plurality of ubiety locations comprises generating an isometric curve representing the indication of locationing accuracy for the plurality of ubiety locations.

14. The method of claim 11 wherein generating the visual representation of the indication of locationing accuracy for the plurality of ubiety locations comprises generating the visual representation indicating a number of the plurality of antennas visible at the plurality of ubiety locations.

15. A computation node comprising:
circuitry comprising one or more processors and a memory containing instructions whereby the computation node is configured to:
obtain an antenna deployment comprising a plurality of antennas and corresponding locations for the plurality of antennas;
determine one or more radio characteristics for a plurality of relative locations within a venue, referred to as ubiety locations based on the antenna deployment, wherein one or more floorplans are used to calculate one or more of the one or more radio characteristics based thereon, wherein the one or more floorplans are used to determine one or more reflected propagation paths between the plurality of antennas and the plurality of ubiety locations;
segment one or more of the one or more floorplans into a grid of x, y coordinates, wherein the one or more of the one or more radio characteristics, comprising path gain, are calculated for each of the x, y coordinates; and
determine an indication of locationing accuracy for the plurality of ubiety locations based on the one or more radio characteristics.

16. A non-transitory computer-readable medium comprising instructions which, when executed on at least one processor, cause the at least one processor to:
obtain an antenna deployment comprising a plurality of antennas and corresponding locations for the plurality of antennas;
determine one or more radio characteristics for a plurality of relative locations within a venue, referred to as ubiety locations based on the antenna deployment, wherein one or more floorplans are used to calculate one or more of the one or more radio characteristics based thereon, wherein the one or more floorplans are used to determine one or more reflected propagation paths between the plurality of antennas and the plurality of ubiety locations;
segment one or more of the one or more floorplans into a grid of x, y coordinates, wherein the one or more of the one or

Assignees

• Ericsson Telefon Ab L M

Inventors

• Smith Roland
• Auer Gunther
• Qi Kunpeng

Classifications

• G01S5/0244 Primary

  Accuracy or reliability of position solution or of measurements contributing thereto · CPC title

• G01S5/12

  by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial · CPC title

• G01S5/02216

  Timing or synchronisation of the receivers · CPC title

• G01S5/0218

  Multipath in signal reception · CPC title

• G01S5/10

  Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements {, e.g. omega or decca systems}(G01S5/12 takes precedence {; beacons and receivers cooperating therewith G01S1/306, G01S1/308}) · CPC title