Invalid measurement indication in location measurement report

Patent metadata

Field	Value
Publication number	US-11234129-B2
Application number	US-201816233054-A
Country	US
Kind code	B2
Filing date	Dec 26, 2018
Priority date	Jan 15, 2018
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

This disclosure describes systems, methods, and devices related to an invalid location measurement report (LMR) indication. A device may identify a first null data packet (NDP) received from a first station device during, wherein the first NDP is used for channel sounding. The device may perform a time of arrival (ToA) calculation based on the NDP. The device may determine an invalid indication associated with the first NDP based on the ToA calculation. The device may generate an LMR comprising of the invalid measurement indication. The device may cause to send the LMR to the first device.

First claim

What is claimed is:

1. A device, the device comprising processing circuitry coupled to storage, the processing circuitry configured to:
identify a first null data packet (NDP) received from a first station device during a ranging procedure, wherein the first NDP is used for channel sounding;
perform a time of arrival (ToA) calculation based on the NDP;
determine an invalid measurement indication associated with the first NDP based on the ToA calculation;
generate a location measurement report (LMR) comprising of the invalid indication; and
cause to send the LMR to the first device.

2. The device of claim 1 , wherein the device is a responder device and wherein the first NDP is an uplink NDP.

3. The device of claim 1 , wherein the device is an initiator device and wherein the first NDP is a downlink NDP.

4. The device of claim 1 , wherein the invalid indication is included in an invalid measurement field of LMR based on the first NDP received from the first station device.

5. The device of claim 1 , wherein the invalid measurement field uses one or more reserved bits of a ToA Error field of the LMR.

6. The device of claim 1 , wherein the ToA calculation is based on a time domain or a frequency domain channel estimation utilizing the NDP.

7. The device of claim 1 , wherein the invalid measurement field indicates that the ToA carried in the LMR is invalid and the corresponding NDP is not successfully received due to attack or jamming or interference or noise when the invalid measurement field is set to a value of “1”.

8. The device of claim 1 , wherein the LMR is a responding STA (RSTA) to an initiating STA (ISTA) LMR.

9. The device of claim 1 , wherein the LMR is an initiating STA (ISTA) to a responding STA (RSTA) LMR.

10. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals, wherein the wireless signals are associated with the LMR and the NDP.

11. The device of claim 10 , further comprising an antenna coupled to the transceiver.

12. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:
identifying a first null data packet (NDP) received from a first station device during a ranging procedure, wherein the first NDP is used for channel sounding;
performing a time of arrival (ToA) calculation based on the NDP;
determining an invalid indication associated with the first NDP based on the ToA calculation;
generating a location measurement report (LMR) comprising of the invalid indication; and
causing to send the LMR to the first device.

13. The non-transitory computer-readable medium of claim 12 , wherein the device is a responder device and wherein the first NDP is an uplink NDP.

14. The non-transitory computer-readable medium of claim 12 , wherein the device is an initiator device and wherein the first NDP is a downlink NDP.

15. The non-transitory computer-readable medium of claim 12 , wherein the invalid indication is included in an invalid measurement field of LMR based on the first NDP received from the first station device.

16. The non-transitory computer-readable medium of claim 12 , wherein the invalid measurement field uses one or more reserved bits of a ToA Error field of the LMR.

17. The non-transitory computer-readable medium of claim 11 , wherein the ToA calculation is based on a time domain or a frequency domain channel estimation utilizing the NDP.

18. The non-transitory computer-readable medium of claim 12 , wherein the invalid measurement field indicates that the ToA carried in the LMR is invalid and the corresponding NDP is not successfully received due to attack or jamming or interference or noise when the invalid measurement field is set to a value of “1”.

19. The non-transitory computer-readable medium of claim 12 , wherein the LMR is a responding STA (RSTA) to an initiating STA (ISTA) LMR.

20. A method comprising:
identifying a first null data packet (NDP) received from a first station device during a ranging procedure, wherein the first NDP is used for channel sounding;
performing a time of arrival (ToA) calculation based on the NDP;
determining an invalid indication associated with the first NDP based on the ToA calculation;
generating a location measurement report (LMR) comprising of the invalid indication; and
causing to send the LMR to the first device.

Assignees

• Intel Corp

Inventors

• Jiang Feng
• Li Qinghua
• Segev Jonathan
• Gurevitz Assaf
• Alexander Danny
• Chen Xiaogang

Classifications

• H04K3/00 Primary

  Jamming of communication; Counter-measures · CPC title

• G01S13/765

  with exchange of information between interrogator and responder · CPC title

• H04W64/00

  Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• G01S7/023

  Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques (auxiliary means for detecting or identifying radar signals or the like G01S7/021; means for anti-jamming G01S7/36) · CPC title