US 11,933,876 B2
Combined frequency modulated continuous wave radar detection
Dan Zhang, San Diego, CA (US); Kapil Gulati, Belle Mead, NJ (US); and Junyi Li, Franklin Park, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Apr. 27, 2021, as Appl. No. 17/302,203.
Claims priority of provisional application 63/037,912, filed on Jun. 11, 2020.
Prior Publication US 2021/0389445 A1, Dec. 16, 2021
Int. Cl. G01S 13/34 (2006.01); G01S 7/35 (2006.01); G01S 13/58 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/347 (2013.01) [G01S 7/35 (2013.01); G01S 13/584 (2013.01); G01S 13/345 (2013.01); G01S 13/931 (2013.01)] 28 Claims
OG exemplary drawing
 
10. A radar device for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the memory and the one or more processors configured to:
transmit a combined frequency modulated continuous wave (FMCW) radar signal, wherein the combined FMCW radar signal comprises:
a first FMCW radar chirp generated using a first signal generator based at least in part on a first set of transmission parameter values; and
a second FMCW radar chirp generated using a second signal generator based at least in part on a second set of transmission parameter values;
receive a signal corresponding to the combined FMCW radar signal;
detect a radar target by determining whether a first parameter value associated with a first component of the received signal is within a threshold of a second parameter value associated with a second component of the received signal,
wherein the radar target is distinguished from interference by verifying that the first component of the received signal and the second component of the received signal correspond to the first FMCW radar chirp and the second FMCW radar chirp; and
perform an action based at least in part on detecting the radar target.