公开(公告)号：US20230254756A1

公开(公告)日：2023-08-10

申请号：US18135797

申请日：2023-04-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Nam Suk LEE ,  Hee Sang CHUNG

IPC: H04W40/24 ,  H04W8/28 ,  H04W88/04 ,  H04W12/102

CPC classification number: H04W40/248 ,  H04W8/28 ,  H04W88/04 ,  H04W12/102 ,  H04W92/18

Abstract: An operation method of a first terminal may comprise: configuring a Uu access link with a base station, and receiving a first message from the base station, the first message including a relay RNTI for identifying the first terminal, a node address of the base station, and a RAP entity ID for identifying a RAP entity configured for the first terminal; configuring a relay link with a second terminal when communication with the base station is disconnected; requesting link switching by transmitting to the base station a second message via the second terminal, the second message including the relay RNTI, node address, and RAP entity ID; and receiving a response to the second message from the base station via the second terminal, and switching a link with the base station from the Uu access link to the relay link.

公开(公告)号：US20240121809A1

公开(公告)日：2024-04-11

申请号：US18373389

申请日：2023-09-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Hyeong KIM ,  Go San NOH ,  Il Gyu KIM ,  Man Ho PARK ,  Nak Woon SUNG ,  Jae Su SONG ,  Nam Suk LEE ,  Hee Sang CHUNG ,  Min Suk CHOI

IPC: H04W72/40 ,  H04W72/541

CPC classification number: H04W72/40 ,  H04W72/541

Abstract: A method of a first terminal may include: identifying first RB set(s) to be used for SL communication among consecutive RB sets through an LBT procedure; identifying a first subchannel group included in the first RB set(s) and a second subchannel group including a first PRB in the first RB set(s), the first PRB being not included in the first subchannel group; configuring the first PRB within the second subchannel group as an SL communication resource; and transmitting, to a second terminal, control information indicating that the first PRB is configured as the SL communication resource.

公开(公告)号：US20230292300A1

公开(公告)日：2023-09-14

申请号：US18099464

申请日：2023-01-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jun Hyeong KIM ,  Go San NOH ,  Il Gyu KIM ,  Man Ho PARK ,  Nak Woon SUNG ,  Jae Su SONG ,  Nam Suk LEE ,  Hee Sang CHUNG ,  Min Suk CHOI

IPC: H04W72/044 ,  H04W72/40 ,  H04W72/54

CPC classification number: H04W72/046 ,  H04W72/40 ,  H04W72/54

Abstract: A method of a transmitting terminal may include: determining a beam candidate set including two or more beams usable for sidelink communication with a receiving terminal from among a plurality of beams that can be beam-formed; determining a resource set for each beam within the beam candidate set through resource sensing, such that the resource set has candidate resources equal to or greater than a predetermined number of candidate resources; selecting a beam and a resource to be used for sidelink communication with the receiving terminal based on the beam candidate set and the resource set; and transmitting sidelink data to the receiving terminal using the selected beam and the selected resource.

公开(公告)号：US20220086930A1

公开(公告)日：2022-03-17

申请号：US17382914

申请日：2021-07-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Nam Suk LEE ,  Hee Sang CHUNG

IPC: H04W76/14 ,  H04W88/04 ,  H04W40/24 ,  H04W72/04

Abstract: An operation method of a first terminal in a communication system may comprise: receiving a link establishment request message from a second terminal; transmitting, to the second terminal, a link establishment response message including a node address of a first base station in response to the link establishment request message; and receiving a link establishment completion message from the second terminal.

公开(公告)号：US20210105826A1

公开(公告)日：2021-04-08

申请号：US17029740

申请日：2020-09-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Soo PARK ,  Il Gyu KIM ,  Nam Suk LEE

IPC: H04W74/08 ,  H04W74/00

Abstract: A random access method, performed by a first terminal in a communication system, includes receiving, from a base station, PRACH configuration information including information on RA resource(s) used for transmission and reception of RA preamble(s) and RAR configuration information used for transmission and reception of RAR(s); transmitting a first RA preamble to the base station based on the information on the RA resource(s); when the first RA preamble is transmitted, performing a monitoring operation for receiving a first RAR that is a response to the first RA preamble; and selecting the first RAR for the first terminal from one or multiple RARs using the RAR configuration information in the monitoring operation.

公开(公告)号：US20220132392A1

公开(公告)日：2022-04-28

申请号：US17409038

申请日：2021-08-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Nam Suk LEE ,  Hee Sang CHUNG

IPC: H04W40/24 ,  H04W8/28 ,  H04W12/102 ,  H04W88/04

Abstract: An operation method of a first terminal may include: configuring a Uu access link with a base station, and receiving a first message from the base station, the first message including a relay RNTI for identifying the first terminal, a node address of the base station, and a RAP entity ID for identifying a RAP entity configured for the first terminal; configuring a relay link with a second terminal when communication with the base station is disconnected; requesting link switching by transmitting to the base station a second message via the second terminal, the second message including the relay RNTI, node address, and RAP entity ID; and receiving a response to the second message from the base station via the second terminal, and switching a link with the base station from the Uu access link to the relay link.

公开(公告)号：US20180270731A1

公开(公告)日：2018-09-20

申请号：US15919855

申请日：2018-03-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Nam Suk LEE ,  Yong Seouk CHOI

IPC: H04W36/30 ,  H04W36/00 ,  H04B7/06 ,  H04W74/00

Abstract: An operation method of a first communication node connected to a first hub in a communication network may comprise measuring signal qualities for a first radio signal received from the first hub and a second radio signal received from a second hub adjacent to the first hub; calculating a difference in the signal qualities for the first radio signal and the second radio signal; comparing the calculated difference with a plurality of predetermined threshold values for handover of the first communication node; and performing a handover-related procedure indicated by one of the plurality of predetermined threshold values based on a result of the comparison.