US 12,216,190 B2
Method, apparatus, and system for wireless sensing based on linkwise motion statistics
Yuqian Hu, College Park, MD (US); Beibei Wang, Clarksville, MD (US); Sai Deepika Regani, Hyattsville, MD (US); Peng Zan, Gaithersburg, MD (US); Chenshu Wu, Hong Kong (CN); Dan Bugos, Baltimore, MD (US); Xiaolu Zeng, Beijing (CN); Hung-Quoc Duc Lai, Parkville, MD (US); K. J. Ray Liu, Potomac, MD (US); and Oscar Chi-Lim Au, San Jose, CA (US)
Assigned to ORIGIN RESEARCH WIRELESS, INC., Rockville, MD (US)
Filed by Yuqian Hu, College Park, MD (US); Beibei Wang, Clarksville, MD (US); Sai Deepika Regani, Hyattsville, MD (US); Peng Zan, Gaithersburg, MD (US); Chenshu Wu, Hong Kong (CN); Dan Bugos, Baltimore, MD (US); Xiaolu Zeng, Beijing (CN); Hung-Quoc Duc Lai, Parkville, MD (US); K. J. Ray Liu, Potomac, MD (US); and Oscar Chi-Lim Au, San Jose, CA (US)
Filed on Jun. 12, 2022, as Appl. No. 17/838,244.
Application 17/838,244 is a continuation in part of application No. 15/326,112, previously published as PCT/US2015/041037, filed on Jul. 17, 2015.
Application 17/838,244 is a continuation in part of application No. 16/127,151, filed on Sep. 10, 2018, granted, now 11,012,285.
Application 16/127,151 is a continuation in part of application No. PCT/US2017/021963, filed on Mar. 10, 2017.
Application 17/838,244 is a continuation in part of application No. 16/790,610, filed on Feb. 13, 2020.
Application 17/838,244 is a continuation in part of application No. 16/790,627, filed on Feb. 13, 2020, granted, now 11,397,258.
Application 17/838,244 is a continuation in part of application No. 16/871,000, filed on May 10, 2020.
Application 17/838,244 is a continuation in part of application No. 16/871,004, filed on May 10, 2020.
Application 17/838,244 is a continuation in part of application No. 16/871,006, filed on May 10, 2020, granted, now 11,408,978.
Application 17/838,244 is a continuation in part of application No. 16/909,913, filed on Jun. 23, 2020.
Application 17/838,244 is a continuation in part of application No. 16/909,940, filed on Jun. 23, 2020, granted, now 11,391,830.
Application 17/838,244 is a continuation in part of application No. 16/945,827, filed on Aug. 1, 2020.
Application 17/838,244 is a continuation in part of application No. 16/945,837, filed on Aug. 1, 2020.
Application 17/838,244 is a continuation in part of application No. 17/019,270, filed on Sep. 13, 2020.
Application 17/838,244 is a continuation in part of application No. 17/113,023, filed on Dec. 5, 2020.
Application 17/838,244 is a continuation in part of application No. 17/149,625, filed on Jan. 14, 2021.
Application 17/838,244 is a continuation in part of application No. 17/149,667, filed on Jan. 14, 2021.
Application 17/838,244 is a continuation in part of application No. 17/180,763, filed on Feb. 20, 2021.
Application 17/838,244 is a continuation in part of application No. 17/180,762, filed on Feb. 20, 2021.
Application 17/838,244 is a continuation in part of application No. 17/180,760, filed on Feb. 20, 2021, granted, now 11,181,486.
Application 17/838,244 is a continuation in part of application No. 17/180,766, filed on Feb. 20, 2021.
Application 17/838,244 is a continuation in part of application No. 17/214,841, filed on Mar. 27, 2021.
Application 16/790,610 is a continuation in part of application No. 16/667,648, filed on Oct. 29, 2019, granted, now 11,035,940, issued on Jun. 15, 2021.
Application 16/667,648 is a continuation in part of application No. 16/446,589, filed on Jun. 19, 2019, granted, now 10,742,475, issued on Aug. 11, 2020.
Application 16/446,589 is a continuation in part of application No. 16/101,444, filed on Aug. 11, 2018, granted, now 10,291,460, issued on May 14, 2019.
Application 17/838,244 is a continuation in part of application No. 17/214,836, filed on Mar. 27, 2021.
Application 17/838,244 is a continuation in part of application No. 17/352,185, filed on Jun. 18, 2021.
Application 17/838,244 is a continuation in part of application No. 17/352,306, filed on Jun. 20, 2021.
Application 17/838,244 is a continuation in part of application No. 17/492,599, filed on Oct. 2, 2021.
Application 17/838,244 is a continuation in part of application No. 17/492,598, filed on Oct. 2, 2021.
Application 17/838,244 is a continuation in part of application No. 17/537,432, filed on Nov. 29, 2021.
Application 17/838,244 is a continuation in part of application No. 17/539,058, filed on Nov. 30, 2021.
Application 17/838,244 is a continuation in part of application No. 17/540,156, filed on Dec. 1, 2021.
Application 17/838,244 is a continuation in part of application No. 17/827,902, filed on May 30, 2022.
Application 17/838,244 is a continuation in part of application No. 17/492,642, filed on Oct. 3, 2021.
Claims priority of provisional application 63/209,907, filed on Jun. 11, 2021.
Claims priority of provisional application 63/235,103, filed on Aug. 19, 2021.
Claims priority of provisional application 63/253,083, filed on Oct. 6, 2021.
Claims priority of provisional application 63/276,652, filed on Nov. 7, 2021.
Claims priority of provisional application 63/281,043, filed on Nov. 18, 2021.
Claims priority of provisional application 63/293,065, filed on Dec. 22, 2021.
Claims priority of provisional application 63/300,432, filed on Jan. 18, 2022.
Claims priority of provisional application 63/308,927, filed on Feb. 10, 2022.
Claims priority of provisional application 63/332,658, filed on Apr. 19, 2022.
Claims priority of provisional application 63/349,082, filed on Jun. 4, 2022.
Prior Publication US 2022/0299619 A1, Sep. 22, 2022
Int. Cl. G01S 13/00 (2006.01); G01S 13/56 (2006.01)
CPC G01S 13/003 (2013.01) [G01S 13/56 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of a wireless sensing system, comprising:
determining a plurality of heterogeneous wireless devices of the wireless sensing system in a venue;
determining a plurality of device-links each of which comprises two of the heterogeneous wireless devices, wherein one of the two heterogeneous wireless devices functions as a transmitter and the other one of the two heterogeneous wireless devices functions as a receiver;
for each respective device-link of the plurality of device-links,
transmitting a respective wireless signal from a respective transmitter of the respective device-link through a wireless multipath channel of the venue, wherein the wireless multipath channel is impacted by a motion of an object in the venue,
receiving the respective wireless signal by a respective receiver of the respective device-link through the wireless multipath channel, wherein the respective received wireless signal differs from the respective transmitted wireless signal due to the wireless multipath channel of the venue and the motion of the object,
obtaining a respective time series of channel information (TSCI) of the wireless multipath channel based on the respective received wireless signal of the respective device-link, wherein each channel information comprises one of: channel state information (CSI), channel impulse response (CIR), or channel frequency response (CFR), and
computing a respective linkwise motion statistics (link-MS) for the respective device-link based on the respective TSCI, wherein the respective link-MS is computed based on: (i) a similarity score between a pair of temporally adjacent CI of the respective TSCI, (ii) an autocorrelation function (ACF) of the respective TSCI, and (iii) a characteristics of the ACF;
performing a sensing task associated with the motion of the object based on at least one of: all the TSCI or all the link-MS;
determining a number of candidate locations, each candidate location being associated with a respective heterogeneous wireless device;
computing a respective location-wise motion statistics (loc-MS) for each respective candidate location based on respective multiple link-MS, wherein for each respective candidate location associated with the respective heterogeneous wireless device:
the respective loc-MS comprises a respective weighted sum or a respective weighted product of a respective plurality of link-based quantities, each respective link-based quantity associated with a respective device-link and a respective weight,
the respective weight is positive when the respective device-link is in a respective first group comprising device-links at a device-link-distance less than or equal to k1 from the respective device associated with the respective candidate location, and is negative when the respective device-link is in a respective second group comprising device-links at a device-link-distance greater than or equal to k2 from the respective device associated with the respective candidate location, k1 being an integer, k2 being an integer greater than k1,
each of the respective plurality of link-based quantities is a univariate monotonic function of the respective link-MS associated with the respective device-link;
analyzing the number of loc-MS and the plurality of link-MS; and
computing a location in the venue associated with the sensing task based on the analyzing of all the link-MS and the loc-MS.