公开(公告)号：US20150133149A1

公开(公告)日：2015-05-14

申请号：US14284124

申请日：2014-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jooyoung KIM ,  Youngsu CHO ,  MyungIn JI ,  Yang Koo LEE ,  Sang Joon PARK

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S5/021 ,  G01S5/0252

Abstract: An apparatus for recognizing the location of a terminal based on a radio fingerprint map corrects a radio pattern received by a user terminal based on a difference in reception sensitivity between a reference terminal serving as a reference for the creation of a radio fingerprint map and the user terminal, and estimates the location of the user terminal by comparing the corrected radio pattern of the user terminal with the radio patterns in the radio fingerprint map.

Abstract translation: 用于基于无线电指纹图识别终端的位置的装置根据用作无线电指纹图的创建的基准的参考终端与用户之间的接收灵敏度的差异校正由用户终端接收的无线电模式 终端，并且通过将用户终端的校正的无线电模式与无线电指纹图中的无线电模式进行比较来估计用户终端的位置。

公开(公告)号：US20230319762A1

公开(公告)日：2023-10-05

申请号：US17896736

申请日：2022-08-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Youngsu CHO ,  Ju Il JEON ,  MyungIn JI ,  Kyeong-Soo HAN

IPC: H04W64/00

CPC classification number: H04W64/00

Abstract: An apparatus for estimating location of a location request terminal receives a location request signal including first wireless communication infrastructure measurement information through a first wireless communication infrastructure of first coverage range and a second wireless communication infrastructure measurement information through a second wireless communication infrastructure of second coverage range greater than the first coverage range, estimates different types of second wireless communication infrastructure measurement information measured at the same location as the location request terminal, generates extended second wireless communication infrastructure measurement information by combining the second wireless communication infrastructure measurement information and the estimated second wireless communication infrastructure measurement information, and determines location of the location request terminal through comparison between a location DB storing the measurement information collected through the first wireless communication infrastructure and the second wireless communication infrastructure in correspondence with each grid location and the extended second wireless communication infrastructure measurement information.

公开(公告)号：US20210294824A1

公开(公告)日：2021-09-23

申请号：US17174582

申请日：2021-02-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： MyungIn JI ,  Youngsu CHO ,  Ju Il JEON ,  Seonghun HONG

IPC: G06F16/29 ,  H04W64/00 ,  G01S11/06 ,  H04B17/318

Abstract: A computing device loads signal strengths of wireless communication signals collected at a plurality of first collection areas and position information of the first collection areas, sets positions of a plurality of virtual transmitting apparatuses. The computing device estimates signal strengths of wireless communication signals in a plurality of second collection areas based on a distance between a position of each of the virtual transmitting apparatuses and each of the first collection areas, a signal strength collected at each of the first collection areas, and a distance between a position of each of the virtual transmitting apparatuses and each of the second collection areas. The computing device determines an optimal virtual transmitting apparatus among the virtual transmitting apparatuses, and generates positioning data at the second collection areas based on signal strengths in the second collection areas which are estimated based on a position of the optimal virtual transmitting apparatus.