公开(公告)号：US20250056353A1

公开(公告)日：2025-02-13

申请号：US18798731

申请日：2024-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon CHO ,  Mi Young YUN ,  Moon Sik LEE ,  Jun Hwan LEE

IPC: H04W36/08 ,  H04W36/00

Abstract: A method of a terminal may comprise: obtaining target satellite-related information from a source satellite; performing satellite switching from the source satellite to a target satellite based on the target satellite-related information; and performing communication with the target satellite based on the target satellite-related information after performing the satellite switching.

公开(公告)号：US20240357460A1

公开(公告)日：2024-10-24

申请号：US18629353

申请日：2024-04-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Kwon CHO ,  Mi Young YUN ,  Moon Sik LEE ,  Jun Hwan LEE

IPC: H04W36/32 ,  H04W36/00 ,  H04W36/08

CPC classification number: H04W36/322 ,  H04W36/0061 ,  H04W36/0083 ,  H04W36/083

Abstract: A method of a terminal may comprise: acquiring, from a non-terrestrial network (NTN) base station, system information (SI) including information indicating either a (quasi-) Earth-fixed cell or an Earth-moving cell (EMC); in response to the SI indicating an EMC, calculating a first distance between a location of the terminal and a reference location; and determining whether to perform measurement for cell reselection based on a comparison result between the first distance and a threshold distance included in the SI and ephemeris information of a satellite included in the SI.

公开(公告)号：US20220278816A1

公开(公告)日：2022-09-01

申请号：US17748162

申请日：2022-05-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE ,  Jun Hwan LEE ,  Min Hyun KIM ,  Ji Hyung KIM ,  Ju Ho PARK

IPC: H04L5/10 ,  H04W76/11 ,  H04L5/00 ,  H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12

Abstract: Disclosed is a method for configuring a bandwidth for supporting a broadband carrier in a communication system. An operation method of a base station comprises the steps of: configuring a first bandwidth part and a second bandwidth part for a terminal; configuring a reserved resource for the first bandwidth part in a resource area in which the first bandwidth part and the second bandwidth part overlap; and performing an operation of transmitting or receiving a second data channel, which is scheduled to the second bandwidth part, together with the terminal by using the reserved resource. Therefore, the performance of the communication system can be improved.

公开(公告)号：US20220078040A1

公开(公告)日：2022-03-10

申请号：US17276390

申请日：2019-09-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Hoon LEE ,  Ju Ho PARK ,  Jun Hwan LEE ,  Il Gyu KIM ,  Jun Hyeong KIM ,  Go San NOH ,  Hee Sang CHUNG

IPC: H04L12/18 ,  H04L1/16 ,  H04L5/00

Abstract: A method for performing sidelink groupcast transmission by a transmission terminal includes the steps of: classifying reception terminals belonging to a subject group into two or more subgroups; allocating different groupcast feedback schemes to the two or more subgroups; performing groupcast transmission to the reception terminals; and receiving feedback information from terminals belonging to at least one subgroup among the two or more subgroups according to the different groupcast feedback schemes.

公开(公告)号：US20200344034A1

公开(公告)日：2020-10-29

申请号：US16620809

申请日：2018-06-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Jung Hoon LEE ,  Jun Hwan LEE ,  Min Hyun KIM ,  Ji Hyung KIM ,  Ju Ho PARK

IPC: H04L5/10 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W76/11 ,  H04W72/02 ,  H04W56/00

Abstract: Disclosed is a method for configuring a bandwidth for supporting a broadband carrier in a communication system. An operation method of a base station comprises the steps of: configuring a first bandwidth part and a second bandwidth part for a terminal; configuring a reserved resource for the first bandwidth part in a resource area in which the first bandwidth part and the second bandwidth part overlap; and performing an operation of transmitting or receiving a second data channel, which is scheduled to the second bandwidth part, together with the terminal by using the reserved resource. Therefore, the performance of the communication system can be improved.

公开(公告)号：US20200053704A1

公开(公告)日：2020-02-13

申请号：US16538915

申请日：2019-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jun Hyeong KIM ,  IL GYU KIM ,  Go San NOH ,  Ju Ho PARK ,  Jung Hoon LEE ,  Jun Hwan LEE ,  Hee Sang CHUNG

IPC: H04W72/04

Abstract: A sidelink communication method performed by a UE in a communication system may comprise receiving, from a base station, a message including configuration information of a subchannel which is a sensing unit of a resource pool; determining a size of the subchannel based on the configuration information; and performing a sensing operation in units of the subchannel in the resource pool. Therefore, the sidelink communication can be efficiently performed, and the performance of the communication system can be improved.

公开(公告)号：US20180132283A1

公开(公告)日：2018-05-10

申请号：US15802682

申请日：2017-11-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing HUI ,  Yeong Jin KIM ,  Il Gyu KIM ,  Jun Hwan LEE ,  Hee Sang CHUNG

IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00 ,  H04W36/00

Abstract: A method and a terrestrial base station for receiving an uplink signal. The terrestrial base station is configured to: receive a preamble corresponding to an orthogonal pseudo-noise (PN) sequence of a plurality of the orthogonal PN sequences from an onboard base station in a train; recognize identification (ID) of the onboard base station from the preamble, and allocate a temporary network ID and an uplink grant (UL grant) to the onboard base station; and receive the uplink signal transmitted based on the temporary network ID and the UL grant.

公开(公告)号：US20180027555A1

公开(公告)日：2018-01-25

申请号：US15652488

申请日：2017-07-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Junhyeong KIM ,  Bing HUI ,  Il Gyu KIM ,  Jun Hwan LEE ,  Hoon LEE ,  Hee Sang CHUNG

IPC: H04W72/04 ,  H04L5/00

Abstract: A high speed moving terminal including first and second antennas each communicating with first and second radio units (RUs) of a base station distributedly installed in a mobile wireless backhaul network communicates with the first and second RUs, respectively, with different uplink-downlink configuration of the first RU and the second RU, and transmits control information of the corresponding downlink signal in an uplink subframe that comes first in the time domain after processing latency of a downlink signal received from the first RU among uplink frames with the uplink-downlink configurations of the first RU and the second RU if the downlink signal is received from the first RU through the first antenna.

公开(公告)号：US20140162704A1

公开(公告)日：2014-06-12

申请号：US14098768

申请日：2013-12-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Eun Young CHOI ,  Moon Sik LEE ,  Young Seog SONG ,  Jun Hwan LEE ,  Seung Eun HONG

IPC: H04W4/02

CPC classification number: H04W64/00 ,  G01S1/08

Abstract: A method of determining a position of a terminal in a communication system using multiple beams is provided. The method includes receiving a first beam from a first point, receiving a second beam from a second point, and determining a position of the terminal by use of information about the first beam and information about the second beam, so that in a case in which two or more effective beams are received in a system using multiple beams, the position of the terminal is determined by use of the angle of a beam, and information about coordinates of departure of a beam and/or coordinates of final arrival of a beam without using a positioning device, such as GPS.

Abstract translation: 提供了一种使用多个光束确定通信系统中终端的位置的方法。 该方法包括从第一点接收第一光束，从第二点接收第二光束，以及通过使用关于第一光束的信息和关于第二光束的信息来确定终端的位置，使得在其中 在使用多个光束的系统中接收两个或更多个有效光束，通过使用光束的角度确定终端的位置，以及关于光束的离开坐标和/或光束的最终到达的坐标的信息，而没有 使用定位设备，如GPS。

公开(公告)号：US20140162655A1

公开(公告)日：2014-06-12

申请号：US14104377

申请日：2013-12-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Eun HONG ,  Moon Sik LEE ,  Young Seog SONG ,  Jun Hwan LEE ,  Eun Young CHOI ,  Il Gyu KIM ,  Seung Chan BANG

IPC: H04W36/00 ,  H01Q21/06

CPC classification number: H01Q21/061 ,  H01Q1/246 ,  H01Q21/065 ,  H01Q21/205 ,  H01Q21/22 ,  H01Q21/26 ,  H04B7/0617 ,  H04W16/28 ,  H04W36/0072

Abstract: There are provided an antenna apparatus and a method of handover using the antenna apparatus. The antenna apparatus may comprise a plurality of antenna elements forming a plurality of beams in a predetermined service area. The plurality of antenna elements are arranged in a plurality of rows, and a number of antenna elements included in an uppermost row of the plurality of rows is smaller than a number of antenna elements included in a downmost row of the plurality of rows, and differences between center angles of beams formed by the antenna elements included in the downmost row are larger than differences between center angles of beams formed by the antenna elements included in the uppermost row.

Abstract translation: 提供了使用天线装置的天线装置和切换方法。 天线装置可以包括在预定的服务区域中形成多个波束的多个天线元件。 多个天线元件被布置成多行，并且包括在多行的最上行中的多个天线元件小于多行中的最下行中包括的天线元件的数量，并且差异 包括在最下排中的天线元件形成的光束的中心角之间的差大于由最上面的行中包括的天线元件形成的光束的中心角之间的差。