公开(公告)号：US20240214093A1

公开(公告)日：2024-06-27

申请号：US18514179

申请日：2023-11-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Seok KIM ,  Jong Soo LIM ,  Young Jun CHONG ,  Ju Yeon HONG

IPC: H04B17/391 ,  H04B17/00

CPC classification number: H04B17/3912 ,  H04B17/0087

Abstract: Exemplary embodiments provide a method of correcting a result of a ray tracing-based propagation channel simulation. The method of correcting propagation channel simulation data, includes: determining an intensity error value of a propagation channel simulation model for a propagation path associated with each object in a space for which a three-dimensional (3D) environment map is given and storing the intensity error value in a storage device; performing a propagation channel simulation for an arbitrary pair of a transmitter position and a receiver position in the space to obtain multipath components; determining an object having influenced propagations of the multipath components in the space; and correcting an intensity of at least one of the multipath components by applying the intensity error value associated with a determined object stored in the storage device.

公开(公告)号：US20230147708A1

公开(公告)日：2023-05-11

申请号：US17537175

申请日：2021-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chung Sup KIM ,  Jun Seok KIM ,  Jong Soo LIM ,  Ju Yeon HONG ,  Young Jun CHONG

IPC: H04L25/02 ,  H04B17/30 ,  H01Q1/24

CPC classification number: H04L25/0248 ,  H04B17/30 ,  H01Q1/242

Abstract: An operating method of a power estimation apparatus comprising a fixed antenna and a mobile antenna may comprise: a first operation of obtaining N measurement values by receiving a signal from signal sources using the fixed antenna and the mobile antenna that moves at a speed v from a first point to an Nth point; a second operation of generating a two-dimensional (2D) data collection set comprising N×M measurement values, by repeating the first operation M times; applying an approximation singular value decomposition (SVD) algorithm to the 2D data collection set; and obtaining information of the signal sources based on an application result of the approximation SVD algorithm, wherein N and M are natural numbers.

公开(公告)号：US20230397049A1

公开(公告)日：2023-12-07

申请号：US18080985

申请日：2022-12-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Seok KIM ,  Young Jun CHONG ,  Sung Woong CHOI ,  Heon Jin HONG

IPC: H04W28/16 ,  H04B17/345 ,  H04L43/0829

CPC classification number: H04W28/16 ,  H04B17/345 ,  H04L43/0829

Abstract: An operating method of a receiving device of a communication system may comprise: receiving an identical signal from an identical transmitting device; receiving interference signals from heterogeneous transmitting devices installed at sample installation points in a base station installation target area; and setting an acceptable interference level on the basis of received signal strength indicators (RSSIs) of the interference signals.