Time synchronized radar transmissions

Patent metadata

Field	Value
Publication number	US-11073598-B2
Application number	US-201916413354-A
Country	US
Kind code	B2
Filing date	May 15, 2019
Priority date	Jul 19, 2018
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

Certain aspects of the present disclosure provide techniques for radar detection by an apparatus. In certain aspects a method for radar detection by an apparatus includes selecting one or more radar transmission parameters based on a reference time, wherein the reference time is common to at least a group of vehicles. The method further includes performing radar detection using the selected radar transmission parameters and the reference time.

First claim

What is claimed is:

1. A method for radar detection by an apparatus, comprising:
selecting one or more radar transmission parameters based on a reference time, wherein the reference time is common to at least a group of vehicles; and
performing radar detection using the selected radar transmission parameters and the reference time.

2. The method of claim 1 , further comprising selecting one or more radar transmission parameters based on a vehicle identification (ID).

3. The method of claim 2 , wherein the vehicle ID includes digital information configured to identify one or more of a specific vehicle or the group of vehicles.

4. The method of claim 1 , wherein the reference time is based on a universal coordinated time (UTC).

5. The method of claim 1 , wherein the radar transmission parameters comprise at least one of: a waveform parameter, an antenna parameter, or a modulation parameter.

6. The method of claim 5 , wherein the waveform parameter comprises at least one of: a slope, an offset, or a phase.

7. The method of claim 5 , wherein the antenna parameter comprises at least one of: a beam form, a polarization, or an antenna selection.

8. The method of claim 5 , wherein the modulation parameter comprises at least one of: a time division multiplexing (TDM) parameter, or a frequency division multiplexing (FDM) parameter.

9. The method of claim 1 , wherein performing radar detection using the selected radar transmission parameters and the reference time further comprises synchronizing at least one of: a chirp boundary or a frame boundary with the reference time.

10. The method of claim 9 , wherein synchronizing at least one of the chirp boundary or the frame boundary comprises synchronizing a beginning of a chirp transmission or a frame transmission to a time window associated with the reference time.

11. The method of claim 1 , wherein the radar transmission parameters are selected in part based on a codebook.

12. The method of claim 1 , wherein the radar transmission parameters are selected based at least in part on one or more vehicle-to-everything (V2X) communications.

13. A radar detection apparatus comprising:
a memory; and
a processor configured to cause the radar detection apparatus to:
select one or more radar transmission parameters based on a reference time, wherein the reference time is common to at least a group of vehicles; and
perform radar detection using the selected radar transmission parameters and the reference time.

14. The radar detection apparatus of claim 13 , wherein the processor is further configured to cause the radar detection apparatus to select one or more radar transmission parameters based on a vehicle identification (ID).

15. The radar detection apparatus of claim 14 , wherein the vehicle ID includes digital information configured to identify one or more of a specific vehicle or the group of vehicles.

16. The radar detection apparatus of claim 13 , wherein the reference time is based on a universal coordinated time (UTC).

17. The radar detection apparatus of claim 13 , wherein the radar transmission parameters comprise at least one of: a waveform parameter, an antenna parameter, or a modulation parameter.

18. The radar detection apparatus of claim 17 , wherein the waveform parameter comprises at least one of: a slope, an offset, or a phase.

19. The radar detection apparatus of claim 17 , wherein the antenna parameter comprises at least one of: a beam form, a polarization, or an antenna selection.

20. The radar detection apparatus of claim 17 , wherein the modulation parameter comprises at least one of: a time division multiplexing (TDM) parameter, or a frequency division multiplexing (FDM) parameter.

21. The radar detection apparatus of claim 13 , wherein performing radar detection using the selected radar transmission parameters and the reference time further comprises synchronizing at least one of: a chirp boundary or a frame boundary with the reference time.

22. The radar detection apparatus of claim 21 , wherein synchronizing at least one of the chirp boundary or the frame boundary comprises synchronizing a beginning of a chirp transmission or a frame transmission to a time window associated with the reference time.

23. The radar detection apparatus of claim 13 , wherein the radar transmission parameters are selected in part based on a codebook.

24. The radar detection apparatus of claim 13 , wherein the radar transmission parameters are selected based at least in part on one or more vehicle-to-everything (V2X) communications.

25. A means for radar detection by an apparatus, comprising:
a means for selecting one or more radar transmission parameters based on a reference time, wherein the reference time is common to at least a group of vehicles; and
a means for performing radar detection using the selected radar transmission parameters and the reference time.

26. The apparatus of claim 25 , further comprising means for selecting one or more radar transmission parameters based on a vehicle identification (ID).

27. The apparatus of claim 26 , wherein the vehicle ID includes digital information configured to identify one or more of a specific vehicle or the group of vehicles.

28. The apparatus of claim 25 , wherein the means for performing radar detection using the selected radar transmission parameters and the reference time further comprises means for synchronizing at least one of: a chirp boundary or a frame boundary with the reference time.

29. The apparatus of claim 28 , wherein the means for synchronizing at least one of the chirp boundary or the frame boundary comprises a means for synchronizing a beginning of a chirp transmission or a frame transmission to a time window associated with the reference time.

30. A non-transitory computer-readable storage medium that stores instructions that when executed by a processor of an apparatus cause the apparatus to perform a method of radar detection comprising:
selecting one or more radar transmission parameters based on a reference time, wherein the reference time is common to at least a group of vehicles; and
performing radar detection using the selected radar transmission parameters and the reference time.

Assignees

• Qualcomm Inc

Inventors

• Gulati Kapil
• Li Junyi
• Subramanian Sundar
• Hamilton Michael John

Classifications

• H04B7/0608 Primary

  Antenna selection according to transmission parameters · CPC title

• G01S7/022 Primary

  Road traffic radar detectors · CPC title

• G01S7/0236

  Avoidance by space multiplex · CPC title

• G01S7/0231

  Avoidance by polarisation multiplex · 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