公开(公告)号：US12003301B2

公开(公告)日：2024-06-04

申请号：US17976148

申请日：2022-10-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo Ko ,  Seok Ki Kim ,  Seung Kwon Baek ,  Woo Ram Shin ,  Chan Ho Yoon

IPC: H04B7/06 ,  H04B17/336 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04B7/0626 ,  H04B17/336 ,  H04L1/0026 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04W24/10

Abstract: An operation method of a terminal may comprise receiving, from a base station, information of target transmission points targeted for a report of first channel state information (CSI) among the plurality of transmission points; receiving a first CSI-reference signal (CSI-RS) from the target transmission points; transmitting the first CSI determined based on the first CSI-RS to the base station; receiving, from the base station, information on a first transmission point determined based on the first CSI; receiving, from the first transmission point indicated by the information on the first transmission point, a second CSI-RS; receiving, from the base station, information on a requirement; and transmitting, to the base station, a second CSI including a transmission parameter for achieving the requirement.

公开(公告)号：US11533097B2

公开(公告)日：2022-12-20

申请号：US16857864

申请日：2020-04-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo Ko ,  Seok Ki Kim ,  Seung Kwon Baek ,  Woo Ram Shin ,  Chan Ho Yoon

IPC: H04B7/06 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10 ,  H04L1/00

Abstract: An operation method of a terminal may comprise receiving, from a base station, information of target transmission points targeted for a report of first channel state information (CSI) among the plurality of transmission points; receiving a first CSI-reference signal (CSI-RS) from the target transmission points; transmitting the first CSI determined based on the first CSI-RS to the base station; receiving, from the base station, information on a first transmission point determined based on the first CSI; receiving, from the first transmission point indicated by the information on the first transmission point, a second CSI-RS; receiving, from the base station, information on a requirement; and transmitting, to the base station, a second CSI including a transmission parameter for achieving the requirement.

公开(公告)号：US10349398B2

公开(公告)日：2019-07-09

申请号：US15800058

申请日：2017-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo Ko ,  Ok Sun Park ,  Chan Ho Yoon ,  Gi Yoon Park ,  Seung Kwon Baek ,  Woo Ram Shin

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04L25/02 ,  H04W72/12 ,  H04W72/14 ,  H04W48/12

Abstract: An operation method of a first terminal in a communication system may comprise receiving, from a base station, a control message including information on a resource allocated for a transmission indicator used for identifying the first terminal among a plurality of terminals performing uplink transmission; transmitting the transmission indicator to the base station using the resource allocated for the transmission indicator; and after transmitting the transmission indicator, transmitting an uplink signal to the base station using a preconfigured resource without an uplink grant.

公开(公告)号：US11888774B2

公开(公告)日：2024-01-30

申请号：US17500402

申请日：2021-10-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyeong Pyo Kim ,  Woo Ram Shin ,  Young Jo Ko ,  Kap Seok Chang

IPC: H04L5/00 ,  H04W72/0446 ,  H04L25/02

CPC classification number: H04L5/0048 ,  H04L25/0224 ,  H04W72/0446

Abstract: An operation method of a transmitter in a communication system may comprise: configuring a first reference signal region for transmission of a first reference signal in the delay-Doppler domain; arranging the first reference signal having a sequence form in a specific region within the first reference signal region; transforming a delay-Doppler domain signal including the first reference signal into a time domain signal; and transmitting the time domain signal to a receiver.

公开(公告)号：US11737081B2

公开(公告)日：2023-08-22

申请号：US16975273

申请日：2019-05-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun Moon ,  Young Jo Ko ,  Cheul Soon Kim ,  Seung Kwon Baek ,  Woo Ram Shin ,  Chan Ho Yoon

IPC: H04W72/1263 ,  H04L1/00 ,  H04W72/044 ,  H04W72/23

CPC classification number: H04W72/1263 ,  H04L1/0038 ,  H04L1/0068 ,  H04W72/044 ,  H04W72/23

Abstract: A method for transmitting and receiving signals for ultra reliable low latency communication. A method of operating a terminal includes: receiving, from a base station, first DCI including resource allocation information of a first PDSCH; performing a blind decoding operation on a PDCCH candidate when a resource region of the first PDSCH indicated by the first DCI overlaps with a resource region of the PDCCH candidate; and performing a receiving operation of a downlink channel on the basis of a result of the blind decoding operation. Therefore, the performance of a communication system can be improved.

公开(公告)号：US11223448B2

公开(公告)日：2022-01-11

申请号：US17159543

申请日：2021-01-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ok Sun Park ,  Gi Yoon Park ,  Seok Ki Kim ,  Woo Ram Shin ,  Tae Joong Kim ,  Jae Sheung Shin ,  Young Ha Lee

IPC: H04L1/00

Abstract: An operation method of a first communication node in a communication system includes receiving a signal from a second communication node; demodulating the signal to obtain LLR values; calculating a first codeword based on the LLR values; selecting error patterns from among all error patterns based on Hamming weights; generating second codewords by applying the first codeword to each of the selected error patterns; and determining a codeword having a highest similarity to the first codeword among the second codewords as an optimal codeword.

公开(公告)号：US11153867B2

公开(公告)日：2021-10-19

申请号：US16411306

申请日：2019-05-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Jo Ko ,  Gi Yoon Park ,  Ok Sun Park ,  Seung Kwon Baek ,  Woo Ram Shin ,  Chan Ho Yoon

IPC: H04W72/04 ,  H04L1/00 ,  H04W72/12 ,  H04L1/18

Abstract: A method and apparatus for transmitting and receiving signal in communication system. A method of a base station includes: configuring frequency spreading sequences each of which corresponds to a transmission starting time point; configuring time spreading sequences each of which corresponds to a terminal; and transmitting information on the frequency spreading sequences and the time spreading sequences to a plurality of terminals, wherein one of the frequency spreading sequences and one of the time spreading sequences are assigned to each of the plurality of terminals.