公开(公告)号：US20230171832A1

公开(公告)日：2023-06-01

申请号：US18070677

申请日：2022-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Mi JUN ,  Il Gyu KIM ,  Jun Sik KIM ,  Soon Gi PARK ,  Sung Cheol CHANG ,  Hee Sang CHUNG ,  Yong Seouk CHOI

IPC: H04W76/16 ,  H04W8/00

CPC classification number: H04W76/16 ,  H04W8/005

Abstract: A apparatus and a method thereof for managing access nodes for a low-latency service in a multi-radio multi-connectivity network are proposed. The method of operating user equipment (UE) in a wireless communication system includes a process of scanning a plurality of secondary nodes (SNs) where radio signals are measured around the UE, a process of transmitting a scanning result to a master node (MN), a process of receiving information about an SN group from the MN, a process of accessing an active SN on the basis of the information about the SN group, and a process of transmitting a message for establishing and modifying a protocol data unit (PDU) session to a core network (CN).

公开(公告)号：US20170181021A1

公开(公告)日：2017-06-22

申请号：US15381385

申请日：2016-12-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byungsik YOON ,  Yong Seouk CHOI

IPC: H04W24/08 ,  H04W28/02 ,  H04W24/10

CPC classification number: H04W24/08 ,  H04W24/02 ,  H04W24/10 ,  H04W28/0268 ,  H04W28/0289

Abstract: A method and an apparatus for managing mobility of a terminal between heterogeneous networks. The method includes: generating applications each corresponding to a plurality of terminals and data units (DUs) of a plurality of heterogeneous networks using software defined network (SDN) technology; collecting radio channel measurement data on channels of radio networks from the plurality of terminals through terminal applications corresponding to the plurality of terminals; collecting an average value of radio resources used in radio units (RUs) of the plurality of heterogeneous networks and network congestion data of the RUs of the plurality of heterogeneous networks through DU applications corresponding to the DUs of the plurality of heterogeneous networks; and determining whether or not to change networks of the plurality of terminals on the basis of the radio channel measurement data, the average value of the radio resources, and the network congestion data.

公开(公告)号：US20160183234A1

公开(公告)日：2016-06-23

申请号：US14973933

申请日：2015-12-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Nak Woon SUNG ,  Yong Seouk CHOI

IPC: H04W72/04 ,  H04W72/12 ,  H04W74/08 ,  H04W24/08

CPC classification number: H04W72/046 ,  H04W36/06

Abstract: In a mobile communication network, after a target beam is determined based on signal intensity of a serving beam and a candidate beam, when the serving beam and the target beam are operated in the same base station, a terminal performs a beam switching procedure in a layer 2.

Abstract translation: 在移动通信网络中，在基于服务波束和候选波束的信号强度确定目标波束之后，当服务波束和目标波束在相同的基站中操作时，终端执行波束切换过程 第2层。

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：US20150230279A1

公开(公告)日：2015-08-13

申请号：US14615059

申请日：2015-02-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Namsuk LEE ,  Yong Seouk CHOI

IPC: H04W76/02 ,  H04W4/00 ,  H04L29/12

CPC classification number: H04W76/11 ,  H04L61/2007 ,  H04W4/70

Abstract: An access service network (ASN) gateway allocates one of IP addresses reserved for MTC communication on the basis of attachment information of a terminal, allocates port numbers by the number of ports requested by the terminal among unallocated port numbers belonging to the allocated IP address, and transmits the allocated IP address and port numbers to the terminal.

Abstract translation: 接入业务网络（ASN）网关根据终端的附件信息分配保留用于MTC通信的一个IP地址，通过终端在属于所分配的IP地址的未分配端口号中分配端口号码，分配端口号， 并将分配的IP地址和端口号发送到终端。

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。