Ranging priority indication

• US 10,555,119 B2
• Filed: 10/09/2018
• Issued: 02/04/2020
• Est. Priority Date: 07/06/2018
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Burugupalli, Srinivas, Wang, Qi, Shani, Oren, Hartman, Christiaan A., Li, Danlin, Diwan, Aniruddha S.
• Primary Examiner(s): Mehra, Inder P
• Application Number:
  US16/155,464
• Publication Number:
  US 20200015038A1
• Time in Patent Office: 483 Days
• Field of Search: 4554561
• CPC Class Codes: G01S 13/765 with exchange of information between interrogator and responder
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds

Abstract

This disclosure relates to techniques for performing ranging wireless communication including prioritization. A first wireless device may transmit a request for ranging services to a second wireless device. The first wireless device may transmit an indication of a ranging priority to the second wireless device. The second wireless device may determine a granted ranging priority. The first and second wireless device may perform ranging communication according to the granted ranging priority.

Claims

1. A first wireless device, comprising:

an antenna;

a radio operably coupled to the antenna; and

a processor operably coupled to the radio;

wherein the antenna, radio, and processing element are configured to;

determine a ranging priority;

transmit a request for a ranging session to a second wireless device, wherein the ranging session includes a process of measuring a distance between the first wireless device and the second wireless device;

transmit an indication of the ranging priority to the second wireless device, wherein the ranging priority is associated with the ranging session with the second wireless device; and

perform the ranging session with the second wireless device based at least in part on the indication of the ranging priority.

2. The first wireless device of claim 1, wherein the indication of the ranging priority specifies a requested time for completion of the ranging session.

3. The first wireless device of claim 1, wherein the indication of the ranging priority specifies a level of priority of the ranging session.

4. The first wireless device of claim 1, wherein the indication of the ranging priority is transmitted with the request for the ranging session.

5. The first wireless device of claim 1, wherein the indication of the ranging priority is transmitted in a field or subfield of a frame associated with a wireless local area network.

6. The first wireless device of claim 1, wherein the indication of the ranging priority is transmitted in a field or subfield of an information element or an information sub-element associated with a wireless local area network.

7. An apparatus, comprising a processor configured to cause a first wireless device to:

determine a spatial measurement priority;

transmit a spatial measurement request to a second wireless device; and

transmit a spatial measurement priority indication to the second wireless device, wherein the spatial measurement priority indication indicates the spatial measurement priority, wherein the spatial measurement priority is associated with the spatial measurement request.

8. The apparatus of claim 7, wherein the processor is further configured to cause the first wireless device to:

receive feedback from the second wireless device, wherein the feedback is in response to the spatial measurement priority indication.

9. The apparatus of claim 8, wherein the processor is further configured to cause the first wireless device to:

in response to the feedback, terminate the spatial measurement request.

10. The apparatus of claim 7, wherein the spatial measurement priority is determined based at least in part on one or more applications executing on the first wireless device.

11. The apparatus of claim 10, wherein determining the spatial measurement priority is further based at least in part on the status of at least one of the one or more applications executing on the first wireless device.

12. The apparatus of claim 7, wherein the spatial measurement priority is determined based at least in part on a battery level of the first wireless device.

13. The apparatus of claim 7, wherein the spatial measurement priority is determined based at least in part on a location of the first device.

14. The apparatus of claim 7, wherein the processor is further configured to cause the first wireless device to:

determine a second spatial measurement priority; and

transmit a second spatial measurement priority indication to the second wireless device, wherein the second spatial measurement priority indication indicates the second spatial measurement priority.

15. An apparatus, comprising a processor configured to cause a second wireless device to:

receive a ranging measurement request from a first wireless device, wherein the ranging measurement request includes a request to measure the distance between the first wireless device and the second wireless device;

receive an indication of a requested ranging priority from the first wireless device;

determine a granted ranging priority based at least in part on the requested ranging priority; and

perform ranging measurement with the first wireless device according to the granted ranging priority.

16. The apparatus of claim 15, wherein the processor is further configured to cause the second wireless device to:

maintain a queue of ranging measurement requests; and

add the ranging measurement request from the first wireless device to the queue in a position determined based on the granted ranging priority.

17. The apparatus of claim 15, wherein to perform ranging measurement with the first wireless device according to the granted ranging priority, the processor is further configured to schedule ranging measurements with the first wireless device based on comparing the granted ranging priority to at least one relative granted ranging priority of at least one other ranging measurement request.

18. The apparatus of claim 15, wherein the processor is further configured to cause the second wireless device to:

reserve resources for high ranging priority ranging sessions, wherein to perform ranging measurement with the first wireless device according to the granted ranging priority, comprises;

in response to determining that the granted ranging priority is a high ranging priority, schedule ranging measurements with the first wireless device on at least a portion of the reserved resources;

or

in response to determining that the granted ranging priority is not a high ranging priority, schedule ranging measurements with the first wireless device on non-reserved resources.

19. The apparatus of claim 15, wherein the processor is further configured to cause the second wireless device to:

transmit an indication of the granted ranging priority to the first wireless device.

20. The apparatus of claim 15, wherein the processor is further configured to cause the second wireless device to:

schedule data traffic based on the granted ranging priority.