US 12,248,083 B2
Communication unit, communication device, and position estimating method
Yosuke Ohashi, Aichi (JP); Masateru Furuta, Aichi (JP); Yuki Kono, Aichi (JP); and Shigenori Nitta, Aichi (JP)
Assigned to KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
Appl. No. 17/790,321
Filed by KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi (JP)
PCT Filed Dec. 2, 2020, PCT No. PCT/JP2020/044785
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/192421, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-051717 (JP), filed on Mar. 23, 2020.
Prior Publication US 2023/0051782 A1, Feb. 16, 2023
Int. Cl. G01S 5/02 (2010.01); H04W 64/00 (2009.01)
CPC G01S 5/0289 (2013.01) [H04W 64/003 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A communication unit configured to be mounted to a candidate mounting destination vehicle among a plurality of candidate mounting destination vehicles, the communication unit comprising:
a plurality of wireless communication units configured to perform wireless communication with another communication device;
a control unit configured to estimate a relative position of the another communication device relative to the communication unit; and
a storage unit that stores a position characteristic for each candidate mounting destination vehicle among the plurality of candidate mounting destination vehicles,
wherein
the position characteristic of the candidate mounting destination vehicle to which the communication unit is mounted includes a position of each of the plurality of wireless communication units,
the control unit estimates the relative position of the another communication device on the basis of:
a plurality of distance measurement values indicating a distance between each of the plurality of wireless communication units and the another communication device obtained by each of the plurality of wireless communication units performing wireless communication with the another communication device; and
the position characteristic corresponding to the candidate mounting destination vehicle to which the communication unit is mounted.