Granted Patent B2

US 12,634,736 · App. 18/163,826 · Granted May 19, 2026

Inventors: Weimin Duan (San Diego, CA); Danlu Zhang (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W24/10H04W72/0453

Abstract

Claims (115)

1 . An apparatus for wireless communication at a sensing node, comprising:

a memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

receive a set of sensing signals;

calculate a first joint spectrum associated with a target object based on a first windowing function and the set of sensing signals; and

calculate a second joint spectrum associated with the target object based on a second windowing function and the set of sensing signals, wherein the first windowing function is different than the second windowing function,

wherein the at least one processor is further configured to:

transmit a first joint spectrum report based on the first joint spectrum to a sensing entity; and

transmit a second joint spectrum report based on the second joint spectrum to the sensing entity,

wherein the first joint spectrum report comprises at least one of:

a first indication of a sensing node identifier (ID) associated with the sensing node;

a second indication of a reference signal (RS) ID associated with the set of sensing signals;

a third indication of a location associated with the sensing node; or

a fourth indication of a spectrum ID associated with the first joint spectrum.

2 . The apparatus of claim 1 , wherein the first joint spectrum comprises a range spectrum, a Doppler spectrum, and an angle spectrum.

3 . The apparatus of claim 1 , wherein the first windowing function comprises a first highest side lobe level, a first main lobe width, and a first sidelobe roll-off rate, wherein the second windowing function comprises a second highest side lobe level, a second main lobe width, and a second sidelobe roll-off rate, wherein the first highest side lobe level is different than the second highest side lobe level, wherein the first main lobe width is different than the second main lobe width, wherein the first sidelobe roll-off rate is different than the second sidelobe roll-off rate.

4 . The apparatus of claim 1 , wherein the first windowing function comprises at least one of:

a rectangular window function;

a Hamming window function;

a raised-cosine window function;

a Parzen window function;

a Triangular window function;

a Welch window function;

a Hanning window function;

a Blackman window function;

a Nuttall window function;

a Blackman-Nuttal window function;

a Blackman-Harris window function;

a flat-top window function;

a Turkey window function;

a Kaiser window function; or

a Dolph-Chebyshev window function.

5 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

calculate a fused joint spectrum based on the first joint spectrum and the second joint spectrum; and

calculate a parameter of the target object based on the fused joint spectrum.

6 . The apparatus of claim 5 , wherein the parameter of the target object comprises a distance of the sensing node from the target object, a speed of the target object, or an angle of the target object relative to the sensing node.

7 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive an indication of an optimal spectrum identifier (ID) associated with at least one of the first joint spectrum or the second joint spectrum from the sensing entity; and

calculate a parameter of the target object based on the optimal spectrum ID in response to the reception of the indication of the optimal spectrum ID.

8 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive an indication of a first weight associated with the first joint spectrum and a second weight associated with the second joint spectrum;

calculate a fused joint spectrum based on the first joint spectrum, the first weight, the second joint spectrum, and the second weight in response to the reception of the indication of the first weight and the second weight; and

estimate a parameter of the target object based on the fused joint spectrum.

9 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive, from the sensing entity, a fused joint spectrum based on the first joint spectrum or the second joint spectrum; and

estimate a parameter of the target object based on the fused joint spectrum.

10 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

receive, from the sensing entity, a sensing report comprising a parameter of the target object based on the first joint spectrum or the second joint spectrum.

11 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

calculate an optimized first weight associated with the first joint spectrum and an optimized second weight associated with the second joint spectrum based on the first joint spectrum and the second joint spectrum;

calculate a fused joint spectrum based on the first joint spectrum, the optimized first weight, the second joint spectrum, and the optimized second weight; and

estimate a parameter of the target object based on the fused joint spectrum.

12 . The apparatus of claim 11 , wherein, to calculate the optimized first weight and the optimized second weight, the at least one processor is configured to:

calculate the optimized first weight associated with the first joint spectrum and the optimized second weight associated with the second joint spectrum further based on a previous estimated parameter of the target object.

13 . The apparatus of claim 12 , further comprising a transceiver coupled to the at least one processor, wherein the at least one processor is further configured to:

receive, via the transceiver, the previous estimated parameter from a sensing entity.

14 . The apparatus of claim 1 , wherein the at least one processor is further configured to:

transmit a request for an estimated target parameter to a sensing entity;

receive an indication of the estimated target parameter from the sensing entity in response to the transmission of the request;

calculate an optimized first weight associated with the first joint spectrum and an optimized second weight associated with the second joint spectrum based on the indication of the estimated target parameter;

calculate a fused joint spectrum based on the first joint spectrum, the optimized first weight, the second joint spectrum, and the optimized second weight; and

estimate a parameter of the target object based on the fused joint spectrum.

15 . An apparatus for wireless communication at a sensing entity, comprising:

a memory; and

at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:

receive a first joint spectrum report based on a first joint spectrum associated with a target object and a first windowing function from a sensing node; and

receive a second joint spectrum report based on a second joint spectrum associated with the target object and a second windowing function from the sensing node, wherein the first joint spectrum report comprises at least one of:

a first indication of a sensing node identifier (ID) associated with the sensing node;

a second indication of a reference signal (RS) ID associated with a set of sensing signals;

a third indication of a location associated with the sensing node; or

a fourth indication of a spectrum ID associated with the first joint spectrum.

16 . The apparatus of claim 15 , further comprising a transceiver coupled to the at least one processor, wherein the at least one processor is further configured to:

calculate an optimal joint spectrum based on the first joint spectrum report and the second joint spectrum report; and

transmit, to the sensing node via the transceiver, an indication of an optimal spectrum identifier (ID) associated with at least one of the first joint spectrum or the second joint spectrum based on the optimal joint spectrum.

17 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

calculate an optimized first weight associated with the first joint spectrum and an optimized second weight associated with the second joint spectrum based on the first joint spectrum report and the second joint spectrum report; and

transmit, to the sensing node, a first indication of the optimized first weight and a second indication of the optimized second weight.

18 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

calculate a fused joint spectrum based on the first joint spectrum and the second joint spectrum; and

transmit the fused joint spectrum to the sensing node.

19 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

calculate a fused joint spectrum based on the first joint spectrum and the second joint spectrum; and

estimate a parameter of the target object based on the fused joint spectrum.

20 . The apparatus of claim 19 , wherein the at least one processor is further configured to:

transmit, to the sensing node, a sensing report comprising the parameter of the target object.

21 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

calculate an optimal joint spectrum based on the first joint spectrum report and the second joint spectrum report; and

estimate a parameter of the target object based on the optimal joint spectrum.

22 . The apparatus of claim 21 , wherein the at least one processor is further configured to:

transmit, to the sensing node, a sensing report comprising the parameter of the target object.

23 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

calculate an optimized first weight associated with the first joint spectrum and an optimized second weight associated with the second joint spectrum based on the first joint spectrum and the second joint spectrum;

calculate a fused joint spectrum based on the first joint spectrum, the optimized first weight, the second joint spectrum, and the optimized second weight; and

estimate a parameter of the target object based on the fused joint spectrum.

24 . The apparatus of claim 23 , wherein the at least one processor is further configured to:

transmit, to the sensing node, a sensing report comprising the parameter of the target object.

25 . The apparatus of claim 15 , wherein the at least one processor is further configured to:

receive a third joint spectrum report based on a third joint spectrum from a third sensing node;

calculate a fused joint spectrum based on the first joint spectrum report, the second joint spectrum report, and the third joint spectrum report; and

estimate a parameter of the target object based on the fused joint spectrum.

26 . A method of wireless communication at a sensing node, comprising:

receiving a set of sensing signals;

calculating a first joint spectrum based on a first windowing function and the set of sensing signals; and

calculating a second joint spectrum based on a second windowing function and the set of sensing signals, wherein the first windowing function is different than the second windowing function, wherein the first joint spectrum report comprises at least one of:

a first indication of a sensing node identifier (ID) associated with the sensing node;

a second indication of a reference signal (RS) ID associated with a set of sensing signals;

a third indication of a location associated with the sensing node; or

a fourth indication of a spectrum ID associated with the first joint spectrum.

27 . A method of wireless communication at a sensing entity, comprising:

receiving a first joint spectrum report based on a first joint spectrum from a sensing node; and

receiving a second joint spectrum report based on a second joint spectrum from the sensing node, wherein the first joint spectrum report comprises at least one of:

a first indication of a sensing node identifier (ID) associated with the sensing node;

a second indication of a reference signal (RS) ID associated with a set of sensing signals;

a third indication of a location associated with the sensing node; or

a fourth indication of a spectrum ID associated with the first joint spectrum.

Assignments (1)

Continuity (1)

References Cited (14)