公开(公告)号：US20220345257A1

公开(公告)日：2022-10-27

申请号：US17858728

申请日：2022-07-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun MOON ,  Cheul Soon KIM ,  Seung Kwon BAEK ,  Gi Yoon PARK ,  Ok Sun PARK ,  Jae Su SONG

IPC: H04L1/18 ,  H04W72/04 ,  H04W76/27 ,  H04W72/12

Abstract: Disclosed are methods and apparatuses for transmitting and receiving data channels in a communication system. An operation method of a terminal in a communication system may comprise receiving, from a base station, resource allocation information of a plurality of physical uplink shared channels (PUSCHs) used for repetitive transmission of a same transport block (TB); identifying a position of each of the plurality of PUSCHs in a time domain based on the resource allocation information; and repeatedly transmitting the same TB to the base station at the position of each of the plurality of PUSCHs. Therefore, performance of the communication system can be improved.

公开(公告)号：US20190200378A1

公开(公告)日：2019-06-27

申请号：US16223502

申请日：2018-12-18

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: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04W72/042 ,  H04W72/044 ,  H04W72/121 ,  H04W72/1284

Abstract: An operation method of a terminal for uplink transmission in a communication network based on Internet of things (IoT) includes receiving a message including information on a resource pool for the uplink transmission from a base station included in the communication network; configuring an uplink resource for the uplink transmission based on the resource pool; transmitting a message including a transmission indicator indicating the uplink transmission to the base station based on a transmission indicator pool corresponding to the resource pool; and performing the uplink transmission through the uplink resource based on a plurality of parameters preconfigured for the uplink transmission.

公开(公告)号：US20230318627A1

公开(公告)日：2023-10-05

申请号：US18295681

申请日：2023-04-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seok Ki KIM ,  Gi Yoon PARK ,  Ok Sun PARK ,  Young Joo LEE ,  Chang Hyeon KIM

IPC: H03M13/15 ,  H03M13/11 ,  H03M13/00

CPC classification number: H03M13/152 ,  H03M13/1111 ,  H03M13/611

Abstract: A soft-decision decoding method used in a digital communication system may comprise: using a hard-decision Bose-Chadhuri-Hocquenghem (BCH) decoder as a stopping rule of ordered statistic decoding (OSD) before performing the OSD on an input signal; and performing the OSD when a highest order of an error position equation generated in the BCH decoder is not equal to a number of solutions found in the BCH decoder.

公开(公告)号：US20220271778A1

公开(公告)日：2022-08-25

申请号：US17675010

申请日：2022-02-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gi Yoon PARK ,  Ok Sun PARK ,  Seok Ki KIM ,  Eun Jeong SHIN ,  Gweon Do JO

IPC: H03M13/29 ,  H03M13/15 ,  H03M13/11

Abstract: An operation method of a receiving node may include performing a decoding operation for calculating first and second output transform values corresponding to first and second unit output nodes in each of a plurality of operation units constituting the polar decoder, based on first and second input transform values corresponding to first and second unit input nodes, and the decoding operation may include setting initial values of first and second variables for calculating the first output transform value; performing an iterative loop operation for updating the first and second variables; and calculating the first output transform value based on values of the first and second variables updated until a time when the iterative loop operation is terminated, wherein the iterative loop operation is terminated without performing iterations in which the first and second variables are determined not to be updated among a plurality of iterations.

公开(公告)号：US20220182191A1

公开(公告)日：2022-06-09

申请号：US17678882

申请日：2022-02-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon KIM ,  Gi Yoon PARK ,  Ok Sun PARK

IPC: H04L1/18 ,  H04W72/12 ,  H04B7/0456 ,  H04W72/04

Abstract: Feedback methods for repetitive uplink transmissions in a communication system are disclosed. An operation method of a terminal may comprise receiving DL data #1 from a base station through a DL data channel #1; receiving DL data #2 from the base station through a DL data channel #2; and when each of a UL control channel #1 on which an HARQ response #1 for the DL data #1 is to be transmitted and a UL control channel #2 on which an HARQ response #2 for the DL data #2 is to be transmitted overlaps with a UL data channel assigned by the base station, transmitting the HARQ response #1 and the HARQ response #2 to the base station through the UL data channel. Therefore, the performance of the communication system can be improved.

公开(公告)号：US20210360610A1

公开(公告)日：2021-11-18

申请号：US17284971

申请日：2019-11-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Cheul Soon KIM ,  Sung Hyun MOON ,  Seung Kwon BAEK ,  Gi Yoon PARK ,  Ok Sun PARK ,  Jae Su SONG

IPC: H04W72/04 ,  H04W72/14 ,  H04W72/02 ,  H04W72/12

Abstract: Disclosed are various methods for transmitting or receiving data or control information having high reliability conditions. A method for operating a terminal which transmits uplink control information (UCI) includes: a step of generating UCI; a step of comparing the priority of an uplink (UL) control channel for the transmission of the UCI with the priority of a UL data channel when some symbols of the UL control channel and the UL data channel overlap; and a step of selecting the UL channel having a higher priority among the UL control channel and the UL data channel, and transmitting the UCI to a base station through the selected UL channel.

公开(公告)号：US20180124756A1

公开(公告)日：2018-05-03

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

CPC classification number: H04W72/042 ,  H04L5/0005 ,  H04L5/0016 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0202 ,  H04W24/08 ,  H04W48/12 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/1268 ,  H04W72/1284 ,  H04W72/14

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.