公开(公告)号：US20230373544A1

公开(公告)日：2023-11-23

申请号：US18198381

申请日：2023-05-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byungsik YOON ,  Sang Chul OH ,  Sook Jin LEE ,  Min Suk CHOI

IPC: B61L27/70 ,  H04L12/46 ,  G08C17/02 ,  H04L45/24

CPC classification number: B61L27/70 ,  H04L12/4641 ,  G08C17/02 ,  H04L45/24 ,  G08C2201/42 ,  B61L2205/00

Abstract: Provided is a method of operating a network device for train control in a wireless communication system, the method including: generating control information for train control; providing a first control command to a first base station through a first interface based on the control information; and providing a second control command to a second base station through a second interface based on the control information, wherein the first control command or the second control command is provided to the first base station or the second base station through the first interface or the second interface via a first core network for train control, and one of the first base station and the second base station is connected to a second core network.

公开(公告)号：US20150336594A1

公开(公告)日：2015-11-26

申请号：US14656678

申请日：2015-03-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byungsik YOON ,  Sook Jin LEE ,  Yong Seouk CHOI

IPC: B61L15/00 ,  H04B17/309 ,  H04B17/15

CPC classification number: B61L15/0027 ,  B61L15/0081 ,  B61L27/0005 ,  B61L27/0094 ,  H04B17/15 ,  H04B17/18 ,  H04B17/309

Abstract: A system that controls a train radio communication apparatus is provided. The control system periodically detects performance of each of a first train radio communication apparatus and a second train radio communication apparatus. The control system selects either one of the first train radio communication apparatus and the second train radio communication apparatus based on the detected performance. The control system transfers a signal that is received from the selected train radio communication apparatus.

Abstract translation: 提供一种控制列车无线电通信装置的系统。 控制系统周期性地检测第一列车无线电通信装置和第二列车无线电通信装置中的每一个的性能。 控制系统基于检测到的性能选择第一列车无线电通信装置和第二列车无线电通信装置中的任一个。 控制系统传送从所选列车无线电通信装置接收的信号。

公开(公告)号：US20150038147A1

公开(公告)日：2015-02-05

申请号：US14283791

申请日：2014-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min Woo JEONG ,  Sook Jin LEE ,  Yong Seouk CHOI

IPC: H04W36/00 ,  H04W88/06

CPC classification number: H04W36/30 ,  B61L15/0027 ,  B61L27/0005 ,  B61L2205/02 ,  H04W36/14 ,  H04W48/18 ,  H04W88/06

Abstract: Provided is a network access management method of a terminal, the method including determining whether a terminal located adjacent to a railway dedicated wireless communication network is a common terminal or a railway dedicated terminal, based on a unique identifier (ID) of the terminal, and handing over the terminal to a different communication network allowing an access based on a result of the determining.

Abstract translation: 提供一种终端的网络接入管理方法，所述方法包括基于所述终端的唯一标识符（ID）确定位于铁路专用无线通信网络附近的终端是公共终端还是铁路专用终端，以及 将终端切换到允许基于确定结果的访问的不同通信网络。

公开(公告)号：US20180027519A1

公开(公告)日：2018-01-25

申请号：US15652460

申请日：2017-07-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sook Jin LEE ,  Wanhee KIM ,  Yong Seouk CHOI

IPC: H04W64/00 ,  H04W24/08 ,  H04W16/28

CPC classification number: H04W64/00 ,  H04W16/28 ,  H04W24/08 ,  H04W88/08

Abstract: A method of positioning a terminal includes: receiving a first radio signal generated through beamforming from a base station; obtaining a cell ID and a beam ID from the first radio signal; obtaining a received signal intensity of the first radio signal; and estimating a first position of the terminal by comparing a fingerprint in which a cell ID, a beam ID, and a received signal intensity are mapped to each point on a map with the cell ID, the beam ID, and the received signal intensity obtained from the first radio signal.

公开(公告)号：US20130308464A1

公开(公告)日：2013-11-21

申请号：US13837965

申请日：2013-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jisoo PARK ,  Sook Jin LEE ,  Youn Ok PARK

IPC: H04W72/04 ,  H04L1/08

CPC classification number: H04W72/0406 ,  H04L1/08 ,  H04L1/1854 ,  H04L1/1896

Abstract: A method for adjusting a hybrid automatic repeat request (HARQ) timing is provided. A base station adjusts a HARQ timing of a mobile station according to a system environment, and transmits radio resource allocation information including the adjusted HARQ timing information to the mobile station. The mobile station adjusts HARQ timing according to HARQ timing information, and transmits a HARQ signal according to the adjusted HARQ timing.

Abstract translation: 提供了一种用于调整混合自动重传请求（HARQ）定时的方法。 基站根据系统环境调整移动台的HARQ定时，向移动台发送包含调整后的HARQ定时信息的无线资源分配信息。 移动台根据HARQ定时信息调整HARQ定时，并根据调整后的HARQ定时发送HARQ信号。