Location reporting of a wireless device

Patent metadata

Field	Value
Publication number	US-11212647-B2
Application number	US-201614992924-A
Country	US
Kind code	B2
Filing date	Jan 11, 2016
Priority date	Jan 12, 2015
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

Aspects of the present disclosure provide techniques for reporting location information in wireless communications system. In some cases, an apparatus may provide an indication of a degree of accuracy in the reported values.

First claim

What is claimed is:

1. An apparatus for wireless communications, comprising:
a receive interface configured to obtain, via a plurality of receive antennas, a signal transmitted from a first device;
a processing system configured to:
determine one or more values for each of a plurality of parameters indicative of an orientation of the apparatus relative to the first device, based on a difference in phase of the signal as received at the plurality of receive antennas;
generate a first frame comprising
an indication of a number of different values determined for each of the plurality of parameters that are based on a same value of the difference in phase of the signal as received at the plurality of receive antennas, wherein the plurality of parameters comprise an azimuth, an elevation, and a roll of the apparatus relative to the first device; and

generate a plurality of second frames, each of the plurality of second frames including one of the different values for each of the plurality of parameters; and

a transmit interface configured to output the first frame and the plurality of second frames for transmission to the first device.

2. The apparatus of claim 1 , wherein the processing system is configured to include at least one of the different values for at least one of the plurality of parameters in the first frame.

3. The apparatus of claim 1 , wherein the transmit interface is further configured to output the first frame and the plurality of second frames for transmission to a second device.

4. The apparatus of claim 1 , wherein a distance between (i) a first of the plurality of receive antennas and (ii) a second of the plurality of receive antennas is greater than half a wavelength of the signal.

5. The apparatus of claim 1 , wherein:
the plurality of parameters further comprise a distance of the apparatus relative to the first device; and
each of the plurality of second frames further comprises a different value of the distance of the apparatus relative to the first device.

6. An apparatus for wireless communications, comprising:
a transmit interface configured to output a signal for transmission to a first device;
a receive interface configured to obtain at least one frame including one or more values for each of a plurality of parameters indicative of an orientation of the first device relative to the apparatus; and
a processing system configured to:
determine, based on an indication within the at least one frame, an ambiguity in the one or more values for each of the plurality of parameters indicative of the relative orientation, wherein:
determining the ambiguity comprises determining that the indication within the at least one frame comprises an indication of a number of different values determined for each of the plurality of parameters based on a same value of a difference in phase of the signal as received at a plurality of receive antennas of the first device; and
the at least one frame comprises a plurality of frames, each including one of the different values for each of the plurality of parameters; and

determine a location of the apparatus relative to the first device based on at least one of the one or more values for at least one of the plurality of parameters, wherein the plurality of parameters comprise an azimuth, an elevation, and a roll at which the signal was received by the first device.

7. The apparatus of claim 6 , wherein:
the processing system is further configured to take one or more actions to resolve the ambiguity in the one or more values for each of the plurality of parameters;
the one or more actions taken to resolve the ambiguity comprise eliminating one or more of the one or more values from consideration; and
the location of the apparatus relative to the first device is determined based on a remaining one or more of the values.

8. The apparatus of claim 6 , wherein:
the receive interface is further configured to obtain from a second device at least another frame comprising an indication of one or more values indicative of a location of the apparatus relative to the second device; and
the processing system is further configured to take one or more actions to resolve the ambiguity in the one or more values for each of the plurality of parameters based on the at least other frame from the second device.

9. The apparatus of claim 6 , wherein:
the plurality of parameters further comprise a distance at which the signal was received by the first device; and
each of the plurality of frames further comprises a different value of the distance.

10. A method for wireless communications by an apparatus, comprising:
obtaining, via a plurality of receive antennas, a signal transmitted from a first device;
determining one or more values for each of a plurality of parameters indicative of an orientation of the apparatus relative to the first device, based on a difference in phase of the signal as received at the plurality of receive antennas;
generating a first frame comprising an indication of a number of different values determined for each of the plurality of parameters that are based on a same value of the difference in phase of the signal as received at the plurality of receive antennas, wherein the plurality of parameters comprise an azimuth, an elevation, and a roll of the apparatus relative to the first device;
generating a plurality of second frames, each of the plurality of second frames including one of the different values for each of the plurality of parameters; and
outputting the first frame and the plurality of second frames for transmission to the first device.

11. The method of claim 10 , wherein generating the first frame comprises including at least one of the different values for at least one of the plurality of parameters in the first frame.

12. The method of claim 10 , further comprising outputting the first frame and the plurality of second frames for transmission to a second device.

13. The method of claim 10 , wherein:
the plurality of parameters further comprise a distance of the apparatus relative to the first device; and
each of the plurality of second frames further comprises a different value of the distance of the apparatus relative to the first device.

14. The method of claim 10 , wherein a distance between (i) a first of the plurality of receive antennas and (ii) a second of the plurality of receive antennas is greater than half a wavelength of the signal.

15. A method for wireless communications by an apparatus, comprising:
outputting a signal for transmission to a first device;
obtaining at least one frame including one or more values for each of a plurality of parameters indicative of an orientation of the first device relative to the apparatus;
determining, based on an indication within the at least one frame, an ambiguity in the one or more values for each of the plurality of parameters indicative of the relative orientation, wherein:
determining the ambiguity comprises determining that the indication within the at least one frame comprises an indication of a number of different values determined for each of the plurality of parameters based on a same value of a difference in phase of the signal as received at a plurality of receive antennas of the first device; and
the at least one frame comprises a plurality of frames, each including one of the different values for each of the plurality of parameters; and

determining a location of the apparatus relative to the first device based on at least one of the one or more values for at least one of the plurality of parameters, wherein the plurality of parameters co

Assignees

• Qualcomm Inc

Inventors

• Sanderovich Amichai

Classifications

• G01S5/0247

  Determining attitude · CPC title

• G01S5/0009

  Transmission of position information to remote stations (involving assistance data G01S5/0236) · CPC title

• G01S5/0284

  Relative positioning · CPC title

• H04W4/026 Primary

  using orientation information, e.g. compass · CPC title