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：US20170318574A1

公开(公告)日：2017-11-02

申请号：US15498445

申请日：2017-04-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung woo CHOI ,  IL GYU KIM

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/03

CPC classification number: H04W72/0413 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2675 ,  H04L27/2692 ,  H04L2025/03796 ,  H04W72/0453 ,  H04W72/048

Abstract: Disclosed herein are a method and an apparatus for transmitting an uplink control channel for a high speed terminal. In a method for transmitting an uplink control channel in a mobile communication system, an uplink control channel signal is generated depending on at least one resource index received from a base station and the uplink control channel signal is transmitted to the base station through a resource block corresponding to the resource index. A location where the uplink control channel signal is allocated is changed depending on the resource index.

公开(公告)号：US20240137821A1

公开(公告)日：2024-04-25

申请号：US18492479

申请日：2023-10-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soon Gi PARK ,  Young-Jo KO ,  IL GYU KIM ,  Jung Im KIM ,  Jun Sik KIM ,  Sung Cheol CHANG ,  Sun Mi JUN ,  Yong Seouk CHOI

IPC: H04W36/00

CPC classification number: H04W36/00695

Abstract: Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.

公开(公告)号：US20230164874A1

公开(公告)日：2023-05-25

申请号：US17991548

申请日：2022-11-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Hyeong KIM ,  Go San NOH ,  IL GYU KIM ,  Hee Sang CHUNG ,  Dae Soon CHO ,  Sung Woo CHOI ,  Seung Nam CHOI ,  Jung Pil CHOI

IPC: H04W76/28 ,  H04W24/08 ,  H04B17/318 ,  H04W72/04 ,  H04W72/566 ,  H04W72/40

CPC classification number: H04W76/28 ,  H04W24/08 ,  H04B17/318 ,  H04W72/04 ,  H04W72/566 ,  H04W72/40

Abstract: A method for sidelink DRX communication may comprise configuring a first resource sensing window for identifying whether resources of a candidate resource set to be used for sidelink DRX communication are reserved or used; identifying whether the resources of the candidate resource set are reserved or used based on the first resource sensing window; determining a selected resource set based on a result of the identification; configuring a second resource sensing window based on information on a DRX active time of a receiving terminal, which is received from the receiving terminal; identifying whether the resources of the candidate resource set are reserved or used by another terminal based on the second resource sensing window; updating the selected resource set based on a result of the identification on the second resource sensing window; and transmitting data to the receiving terminal by using a resource of the updated selected resource set.

公开(公告)号：US20180279387A1

公开(公告)日：2018-09-27

申请号：US15934140

申请日：2018-03-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing HUI ,  IL GYU KIM ,  Junhyeong KIM ,  Gosan NOH ,  Hee Sang CHUNG ,  Sung Woo CHOI

IPC: H04W74/08 ,  H04W74/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W74/0891 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/261 ,  H04W4/70 ,  H04W16/28 ,  H04W74/002 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: A method and an apparatus for transmitting a message used to access a base station (BS) in a random access (RA) procedure by user equipment (UE) are provided. The method includes: determining a first RA preamble resource corresponding to an SSB index which corresponds to a transmission beam among a plurality of transmission beams of BS; and transmitting a message 1 of the RA procedure by using a first RA preamble format which includes the first RA preamble resource and at least one second RA preamble resource which neighbors the first RA preamble resource.

公开(公告)号：US20170310528A1

公开(公告)日：2017-10-26

申请号：US15493870

申请日：2017-04-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bing HUI ,  Junhyeong KIM ,  IL GYU KIM ,  Hoon LEE ,  Hee Sang CHUNG ,  Sung woo CHOI

IPC: H04L27/34

CPC classification number: H04L27/3488 ,  H04L27/3433

Abstract: A transmitting apparatus for modulating data based on a predetermined 2q-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2q-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2q-QAM constellation are same with a gray code of a 2q-2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2q-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2q-QAM around the x-axis or the y-axis.

公开(公告)号：US20160360531A1

公开(公告)日：2016-12-08

申请号：US15077896

申请日：2016-03-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jin MOON ,  IL GYU KIM ,  Youn Ok PARK ,  Young Jo BANG

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04B7/0697 ,  H04L5/005 ,  H04L5/0053

Abstract: A base station configures beam identifiers for a plurality of transmission beams. The base station configures virtual beam identifiers for the plurality of transmission beams based on the maximum number of transmission beams from the plurality of transmission beams that may spatially overlap one another, and the beam identifiers. The base station allocates resources using the virtual beam identifiers.

Abstract translation: 基站配置多个发射波束的波束标识符。 基站基于来自可以在空间上彼此重叠的多个发射波束的发射波束的最大数目和波束标识符来配置多个发射波束的虚拟波束标识符。 基站使用虚拟波束标识符分配资源。

公开(公告)号：US20150289172A1

公开(公告)日：2015-10-08

申请号：US14676396

申请日：2015-04-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Woo CHOI ,  IL GYU KIM ,  Seung Chan BANG

IPC: H04W36/00 ,  H04W36/30 ,  H04W36/08

CPC classification number: H04W36/0055 ,  H04W36/08

Abstract: For a transmitting terminal which is connected to a small base station of a small cell to transmit data to a receiving terminal belonging to another small cell, information of the receiving terminal to a target small base station to which the receiving terminal is connected is received from a small base station; when handover to the target small base station may be made, the handover to the target small base station is made depending on a handover instruction from the small base station and then data are transmitted to the receiving terminal through the target small base station.

Abstract translation: 对于连接到小小区的小型基站的发送终端，向属于另一小小区的接收终端发送数据，接收到接收终端所连接的目标小基站的接收终端的信息从 一个小基地台 当可以进行到目标小型基站的切换时，根据来自小型基站的切换指令进行到目标小型基站的切换，然后通过目标小型基站将数据发送到接收终端。